摘要：
A modified material of activated carbon by alkali leaching pretreatment (NaOH-AC) for adsorbing beryllium was reported. The batch test results showed that the maximum adsorption capacity of beryllium by NaOH-AC was 40.59 mg/g. The pH value of the treated solution was 6, which met the discharge standards of industrial wastewater. The results of the BET analysis showed that NaOH-AC had a high specific surface area and a small pore size. The kinetic results showed that the process of NaOH-AC adsorption of beryllium was mainly controlled by chemical adsorption but also by physical adsorption and intraparticle diffusion. The thermodynamic results showed that the adsorption process was a spontaneous endothermic reaction. The comparative characterization of beryllium adsorption by NaOH-AC showed that beryllium existed on the surface of activated carbon in the form of Be(OH)(2.)
作者机构：
[Pritchard, Jordan; Li, Yutong; De Sio, Chiara; Hugtenburg, Richard; Beck, Lana; Velthuis, Jaap] Univ Bristol, Sch Phys, Bristol BS7 1TL, England.;[Hugtenburg, Richard; Velthuis, Jaap] Swansea Univ, Swansea Univ Med Sch, Fac Med Hlth & Life Sci, Swansea SA2 8PP, Wales.;[Velthuis, Jaap] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Hugtenburg, Richard] Swansea Bay Univ Hlth Board, Dept Med Phys & Clin Engn, Swansea SA2 4QA, Wales.
通讯机构：
[Jaap Velthuis] T;These authors contributed equally to this work.<&wdkj&>Swansea University Medical School, Faculty of Medicine, Health and Life Science, Swansea University, Swansea SA2 8PP, UK<&wdkj&>School of Physics, University of Bristol, Bristol BS7 1TL, UK<&wdkj&>School of Nuclear Science and Technology, University of South China, Hengyang 421001, China<&wdkj&>Author to whom correspondence should be addressed.
关键词：
X-ray detectors;solid-state detectors;radiation-hard detectors;image processing;data processing methods;image reconstruction in medical imaging;radiotherapy concepts;radiotherapy verification;radiotherapy monitoring;detector alignment and calibration;Multi Leaf Collimator (MLC);Monolithic Active Pixel Sensors (MAPS)
摘要：
Intensity-modulated radiotherapy is a widely used technique for accurately targeting cancerous tumours in difficult locations using dynamically shaped beams. This is ideally accompanied by real-time independent verification. Monolithic active pixel sensors are a viable candidate for providing upstream beam monitoring during treatment. We have already demonstrated that a Monolithic Active Pixel Sensor (MAPS)-based system can fulfill all clinical requirements except for the minimum required size. Here, we report the performance of a large-scale demonstrator system consisting of a matrix of 2 x 2 sensors, which is large enough to cover almost all radiotherapy treatment fields when affixed to the shadow tray of the LINAC head. When building a matrix structure, a small dead area is inevitable. Here, we report that with a newly developed position algorithm, leaf positions can be reconstructed over the entire range with a position resolution of below similar to 200 mu m in the centre of the sensor, which worsens to just below 300 mu m in the middle of the gap between two sensors. A leaf position resolution below 300 mu m results in a dose error below 2%, which is good enough for clinical deployment.
摘要：
Thermodynamic and chemical two-body correlations of the isotope-resolved clusters are measured in 86Kr + 208Pb reactions at 25 MeV/u. The yield and kinetic variables of the A = 3 isobars are analyzed in coincidence with the intermediate mass fragments of 6 A 11. While the velocity spectra of both t and 3He exhibit scaling behavior over the type of the intermediate mass fragments, the yield ratios of t/ 3He correlate reversely to the neutron-to-proton ratio N/Z of the latter, showing the ping-pong modality of the N/Z of the emitted particles. The commonality that the N/Z of the residues keeps the initial system value is extended to the cluster emission in heavy ion reactions. The comparison to transport model calculations to the data is discussed.
作者机构：
[Xia, Liangshu; Hao, Shuai; Huang, Wenlong] Univ South China, Sch Nucl Sci & Technol, Hengyang, Peoples R China.;[Li, B; Li, Bin; Liu, Zhanyuan] China Inst Atom Energy, POB 275-88, Fangshan, Peoples R China.;[Jiang, Dongmei] Univ South China, Inst Innovat & Entrepreneurship, Hengyang, Peoples R China.
通讯机构：
[Xia, LS ] U;[Li, B ] C;Univ South China, Sch Nucl Sci & Technol, Hengyang, Peoples R China.;China Inst Atom Energy, POB 275-88, Fangshan, Peoples R China.
摘要：
Large quantities of solutions containing oxalic acid and nitric acid are produced from nuclear fuel reprocessing, but oxalic acid must be removed before nitric acid and plutonium ions can be recovered in these solutions. The degradation of oxalic acid with Pt/SiO(2) as a catalyst in nitric acid solutions has the characteristics of a fast and stable reaction, recyclable catalyst, and no introduction of impurity ions into the system. This method is one of the preferred alternatives to the currently used reaction of KMnO(4) with oxalic acid but lacks theoretical support. Therefore, this study attempts to clarify the reaction mechanism of the method. First, there was no induction period for this catalytic reaction, and no evidence was found that the nitrous acid produced in the solution could have an effect on oxalic acid degradation. Furthermore, oxidation intermediates (structures of Pt-O) were formed through this reaction between NO(3)(-) adsorbed on the active sites and Pt on the catalyst surface, but H(+) greatly promoted the reaction. Additionally, oxalic acid degradation through the oxidative dehydrogenation reaction occurred between oxalic acid molecules (HOOC-COOH) and Pt-O, with ·OOC-COOH, which is easily self-decomposable especially in acidic solution, generated simultaneously, and finally CO(2) was produced.
期刊：
Journal of Radioanalytical and Nuclear Chemistry,2023年332(6):2349-2357 ISSN：0236-5731
通讯作者：
Jianliang Zhou<&wdkj&>Qichao Wang
作者机构：
[Li, Sheng; Wang, Chao; Ma, Guangnai; Zhou, Jianliang] Univ South China, Sch Nucl Sci & Technol, 28 West Chang Sheng Rd, Hengyang, Hunan, Peoples R China.;[Wang, Qichao] Guizhou Med Univ, Affiliated Hosp, Nucl Med Dept, 28 Gui Yi St, Guiyang, Guizhou, Peoples R China.
通讯机构：
[Jianliang Zhou] S;[Qichao Wang] N;School of Nuclear Science and Technology, University of South China, Hengyang, China<&wdkj&>Nuclear Medicine Department, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
关键词：
Ce (IV);HNO3 decontamination;Metal surface contamination;Orthogonal test;Iodine-131 contamination;Decontamination factor
摘要：
A decontamination study of iodine-131 contamination by Ce (IV)/HNO3 was carried out using orthogonal tests for radioactive contamination of metal surfaces. The effects of nitric acid concentration, Ce (IV) concentration, temperature, and decontamination time on the decontamination factors of brass and aluminum were obtained. The maximum value of decontamination factor was 5.80 for brass: temperature was approximately equal to Ce (IV) concentration than decontamination time than nitric acid concentration, and the maximum value of decontamination factor was 319.49 for aluminum: Ce (IV) concentration than decontamination time than nitric acid concentration than temperature.
期刊：
International Journal of Energy Research,2023年2023 ISSN：0363-907X
作者机构：
[Deng, Nian-Biao; Ding, De-Xin] Univ South China, Sch Resource Environm & Safety Engn, Hengyang, Hunan, Peoples R China.;[Xie, Jin-Sen; Yu, Tao] Univ South China, Sch Nucl Sci & Technol, Hengyang, Hunan, Peoples R China.;[Hou, Cheng] China Inst Atom Energy, Beijing, Peoples R China.
摘要：
The space-time kinetics of ADS Subcritical Reactor (ADSR) under beam transients play an important role in ensuring the reliability of the control and safety system of the accelerator-driven subcritical system (ADS). In order to elucidate the effect of high heterogeneity of neutron flux density in space-time on the neutron space-time kinetics of ADSR under different subcriticality and beam transients, in this paper, the multimode core few-group constants, which is more adaptable to the beam transients, is used to investigate the mechanism of neutron flux density, core few-group constants, and kinetic parameters of ADSR under the synergistic effect of external neutron source, subcriticality, and the beam transients. The results show that with the deepening of the subcriticality, with the increasing role of external neutron source, the neutron flux density of the ADSR has a higher heterogeneity of space-time, which leads to a larger difference in the core few-group constant library of different modes, and thus a larger difference in the kinetic parameters (especially the neutron generation time) of different modes. Therefore, in the study of the influence mechanism of neutron space-time kinetics of ADSR under beam transients, the multimode core few-group constants should be used, and the influence of external neutron source and subcriticality on the kinetic parameters, especially the neutron generation time, should be emphasized.
通讯机构：
[Tan, YL ] H;Hengyang Normal Univ, Coll Phys & Elect Engn, Hengyang 421008, Hunan, Peoples R China.
关键词：
Accumulation chamber;AlphaGUARD PQ2000PRO;Interference of thoron;RAD7;Radon exhalation model
摘要：
Radon exhalation rate from soil is a critical factor in evaluating environmental radon levels. However, AlphaGUARD PQ2000PRO may have some sensitivity towards thoron, which can have a significant impact on radon measurement. The traditional radon exhalation models generally ignore the presence of thoron, leading to an overestimation of the radon exhalation rate from soil. To handle this issue, a new model was proposed based on an analysis of several previous studies on radon exhalation theories. To prove the feasibility of the model, the radon exhalation rate measurements were performed by two different types of detectors-AlphaGUARD PQ2000PRO and RAD7. The radon exhalation rate obtained by using the new model is in good agreement with that obtained by using the theoretical model of radon exhalation of RAD7 within one standard error. This new model can be applied to accurately measure radon exhalation rate from soil by the PIC detector (PQ2000PRO).
期刊：
INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS,2023年117(2, Supplement):e479-e480 ISSN：0360-3016
通讯作者：
Q. Ni
作者机构：
[Ni, Q.] Cent South Univ, Hunan Canc Hosp, Affiliated Canc Hosp, Dept Radiat Oncol,Xiangya Sch Med, Changsha, Peoples R China.;[Ni, Q.] Univ South China, Sch Nucl Sci & Technol, Hengyang, Peoples R China.
通讯机构：
[Q. Ni] D;Department of Radiation Oncology, Hunan Cancer Hospital, Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China<&wdkj&>School of Nuclear Science and Technology, University of South China, Hengyang, China
会议名称：
65th ANNUAL MEETING OF THE AMERICAN-SOCIETY-FOR-RADIATION-ONCOLOGY (ASTRO)
会议时间：
OCT 01-04, 2023
会议地点：
San Diego, CA
摘要：
To establish the different machine learning classification predict models of gamma pass rates for specific dosimetric verification of pelvic intensity modulated radiotherapy plan which based on the radiomic features and to explore the best prediction model.
Retrospective analysis of the 3D dosimetric verification results based on measurements with gamma pass rate criteria of 3%/2 mm and 10% dose threshold of 196 pelvic intensity-modulated radiotherapy plans was carried. Prediction models were established by extracting radiomic features data. Four machine learning algorithms, random forest, support vector machine, adaptive boosting and gradient boosting decision trees, were used to calculate the AUC value, sensitivity and specificity respectively. The classification performance of the four prediction models were evaluated.
The sensitivity and specificity of the random forest, support vector machine, adaptive boosting, and gradient boosting decision trees models were 0.93,0.85,0.93,0.96, and 0.38,0.69,0.46, and 0.46, respectively. The AUC values for the random forest model and the adaptive boosting model were 0.81 and 0.82, respectively, and the AUC values for the support vector machine and gradient boosting decision tree models were 0.87.
Machine learning methods based on radiomics can be used to establish a prediction model of gamma pass rate for specific dosimetric verification of pelvic intensity modulated radiotherapy. The classification performance of support vector machine model and gradient boosting decision trees model is better than that of random forest model and adaptive boosting model. The prediction model for a specific site is helpful to improve the performance of the model.
摘要：
With the exploitation of uranium-beryllium ore, the waste and wastewater produced have received extensive attention. There are a lot of toxic and harmful substances in uranium-beryllium ore, among which beryllium has not been widely concerned. This paper used hydrochloric acid (HCl) pretreatment activated carbon (H-AC) to study the removal of beryllium from uranium beryllium ore wastewater. This experiment explored the influence of reaction time, reaction temperature, and other conditions on the adsorption effect. It concluded that the adsorption efficiency was 99% when pH = 5, the amount of adsorbent was 2 g/L, and the temperature was 25 & DEG;C. The effects of Be-U, Be-Mn, Be-Zn, Be-Fe and, Be-Al binary systems on the adsorption of beryllium by H-AC were analyzed. The results show that the adsorption capacity of H-AC to beryllium is not affected by the coexisting ions. According to thermodynamics, the adsorption process is a spontaneous endothermic single-layer adsorption, and the maximum adsorption capacity fitted by thermodynamics is 30.63 mg/g. Kinetic fitting showed that chemical adsorption was the primary process, and the reaction was intense in the early stage. This study provides a new idea for removing beryllium from uranium beryllium ore wastewater, and H-AC can be considered a potential adsorbent for removing beryllium from industrial wastewater.
通讯机构：
[Xiaohua Yang] U;University of South China, School of Nuclear Science and Technology, Hengyang, Hunan, 421000, China<&wdkj&>University of South China, School of Computing/Software, Hengyang, Hunan, 421000, China
关键词：
Nuclear power plant;PCTRAN;AutoPCTRAN;CNN-LSTM;fault diagnosis
摘要：
Rare earth elements are usually separated by solvent extraction after several separation stages. However, the separation of particles would be possible if fine rare earth and oxide particles from a mixture of rare earth materials would exhibit a relatively high degree of liberation. Here, the novel method for separating a mixture of two kinds of artificial rare earth particles was developed using a high-gradient magnetic separator. Rare earth metals and oxides have different magnetic susceptibility, and some have high magnetic susceptibility as paramagnetic materials. In conventional magnetic separation, all paramagnetic particles are captured as magnetics. However, a mixture of rare earth particles can also be separated by increasing liquid magnetization with water-based magnetic fluid and paramagnetic liquid having higher magnetization than water. As a result, the adjacent atomic number of rare earth particles can be separated. The magnetic separation efficiencies of neighboring rare earth were compared with the conventional solvent extraction results, and it was found that magnetic separation has a relatively high efficiency for separating some rare earth elements.
通讯机构：
[Min Liu; Yanfang Xia] C;College of Nuclear Science and Technology, University of South China, Hengyang421001, China
摘要：
A systematic investigation of the spin-glass behavior of cobalt-doped iron disulfide is performed in this paper. Co0.5Fe0.5S2 has been synthesized and characterized, and its magnetic properties have been measured compared to those of Co0.2Fe0.8S2. There are some unusual phenomena in the magnetic properties that have sparked our interest in further exploration, e.g., the spin frustration of Co0.5Fe0.5S2 is intense at low temperatures and irreversibility of ZFC/FC at high temperatures. Density functional theory is used to determine the exchange integral of superexchange pathways of Co-S-S-Co (nearest neighbor in the same site) and Co-S-Co-S-Co (next nearest neighbor in the same site) superexchange interaction. The superexchange interaction between Co-S-Co is so weak that it can be ignored to simplify the model. Self-consistent iterative and Monte Carlo methods are used to prove that the origin of spin-glass behavior is the superexchange interaction competition between Co-S-S-Co and Co-S-Co-S-Co pathways. In addition, the irreversibility of ZFC/FC at high temperatures is attributed to the magnetostatic interaction in the CoS shell. Meanwhile, the disorder of the Fe site may increase the degree of spin frustration in the system. Lastly, we established that fluctuations in the interexchange interactions are one cause of CoS2 spin frustration. Slowing the rate of zero-field cooling could reduce the likelihood of frustration as a result of fluctuations in exchange interactions. This work provides an in-depth analysis of the magnetic mechanism of cobalt-doped iron disulfide nanospheres and serves as a theoretical guide for spintronics studies, helping researchers to gain a deeper understanding of the frustration system.
摘要：
Various low-concentration inert gases, including 222Rn, 133Xe, and 85Kr, pollute the atmosphere near nuclear facilities (e.g., nuclear power plants or reprocessing plants). Owing to the detection limits of instruments, it has become urgent to determine the concentration of these gases efficiently and perform their online monitoring. However, current technologies are limited by low enrichment efficiencies. In this study, a high-pressure, low-flow, large-volume, and high-efficiency adsorption method has been proposed along with a high-temperature, low-pressure, high-flow, and small-volume rapid desorption and collection method, which are based on the gas enrichment principle of activated carbon. The results demonstrated that when dynamic adsorption was implemented using a two-level enrichment method, the final desorbed gas concentration was proportional to the volume ratio of both the large and small activated carbon beds. At a volume ratio of 15:1, 222Rn concentration increased from 110 to 21,016 Bq m-3 after the two-level enrichment; meanwhile, 222Rn concentration increased from 110 to 42,012 Bq m-3 after three-level enrichment. The three-level enrichment technology provides technical support for the enrichment of low-concentration inert gases in the environment, while offering an important technical foundation for improving the monitoring of low-concentration inert gases in specific environments as well as the atmospheric environment.
通讯机构：
[Xu Zhang; Chengtao Yue] S;School of Nuclear Science and Technology, University of South China, Hengyang 421001, China<&wdkj&>R&D and Modelling Center for Treatment and Disposal of Radioactive Waste, University of South China, Hengyang 421001, China
关键词：
Macroporous carbon;Foam-like structure;Phosphate group;Highly hydrophilic;Bath and column adsorption systems
摘要：
The development and application of new high-efficiency adsorbent materials for efficient removal of uranium (VI) from nuclear wastewater is of great concern for environment protection. In this study, a novel phosphate-rich macroporous carbon foam was designed and synthesized for efficient uranium (VI) adsorption. Bath adsorption was used to evaluate the uranium (VI) adsorption performance of this carbon foam, and the influences of adsorbent dosage, solution pH and ionic strength on adsorption efficiency were studied. The results demon-strated that the carbon foam was effective adsorbent for uranium (VI) and the adsorption efficiency reached 99 % at 30 degrees C, pH 7.0 and contact time 2.0 h with an adsorbent dosage of 0.25 g L-1 in 100 mg L-1 uranium (VI) solution. The adsorption process follows better with pseudo-second-order model with a coefficient of correlation of 0.9999 and was more consistent with the Langmuir model with the maximum adsorption capacity as high as 1250 mg g-1. The distribution coefficient of carbon foam for uranium (VI) reached 15 L g-1 which is higher than that for other ions (0.1-4.4 L g-1), demonstrating a good adsorption selectivity. Moreover, this material can be recycled for at least 5 times and can be used in fixed-bed adsorption column for dynamic adsorption of uranium from uranium-containing solutions (5 or 50 mg L-1) with adsorption efficiencies up to 99 %. This study's results showed the high efficiency of phosphate-rich macroporous carbon foam in uranium (VI) adsorption and high-lighted its great potential in efficient removal of uranium (VI) from nuclear wastewater.
作者：
Wasaye, Muhammad Abdul;Yu, Tao;Xie, Jinsen;Chen, Zhenping;Ni, Zining
期刊：
Journal of the Korean Physical Society,2023年82(10):954-962 ISSN：0374-4884
通讯作者：
Muhammad Abdul Wasaye<&wdkj&>Tao Yu<&wdkj&>Jinsen Xie
作者机构：
[Wasaye, Muhammad Abdul; Chen, Zhenping; Xie, Jinsen; Ni, Zining; Yu, Tao] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Muhammad Abdul Wasaye; Tao Yu; Jinsen Xie] S;School of Nuclear Science and Technology, University of South China, Hengyang, China<&wdkj&>School of Nuclear Science and Technology, University of South China, Hengyang, China<&wdkj&>School of Nuclear Science and Technology, University of South China, Hengyang, China
关键词：
Monte Carlo;Radiotherapy;Bremsstrahlung;Differential cross-section;Energy distribution;Angular distribution
摘要：
A fast sampling algorithm for energy-angle distributions of bremsstrahlung photon for radiotherapy purposes is presented. Efficient and accurate sampling methods have been developed based on the most accurate and reliable differential cross-sections for sampling the energy-angle distributions of bremsstrahlung photons by incident electron of energy 1 MeV-20 MeV. Scaled energy-loss numerical differential cross-sections produced by Seltzer and Berger are used to sample the photon energy. A new sampling method based on a double differential cross-section of Koch and Motz has been developed which uses a simplified expression to sample the bremsstrahlung photon angular distribution. The average efficiency of sampling photon energy distribution algorithm is about 85% for electrons with kinetic energies 5 MeV-20 MeV and below to 75% for electrons of kinetic energies 1 MeV-5 MeV. Computation time comparisons have been evaluated with the previous algorithm to sample one photon energy. The inverse transform sampling procedure is implemented to sample the photon angular distribution; hence, every sampled value of the angular distribution is accepted. Therefore, the proposed algorithm is very fast and efficient for radiotherapy purposes. The sampling methods' accuracy is checked by comparing the Monte Carlo sampled distributions with the theoretical expressions.
期刊：
New Journal of Physics,2023年25(8):083035 ISSN：1367-2630
通讯作者：
Wang, F;Li, CG
作者机构：
[Pang, Su-Na; Wang, Feng; Sun, Ya-Ting] Beijing Inst Technol, Sch Phys, Beijing 100081, Peoples R China.;[Mao, Fei] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Li, Chen-Guang; Li, CG] China Acad Engn Phys, Inst Mat, Mianyang 621908, Peoples R China.
通讯机构：
[Wang, F ] B;[Li, CG ] C;Beijing Inst Technol, Sch Phys, Beijing 100081, Peoples R China.;China Acad Engn Phys, Inst Mat, Mianyang 621908, Peoples R China.
关键词：
atom collision;stopping power;charge transfer
摘要：
We investigate the charge-state effects on charge transfer of helium ions in gold nanosheet using the time-dependent density functional theory non-adiabatically coupled to the molecular dynamics. In order to characterize and extract the charge-state information of incident particles inside the nanosheet, we develop two novel computational methods. It is found that the charge transfer behavior of He ion in gold nanosheet is sensitive to its charge state at the time of incident. Analysis of these results allows us to gain new insights in the interaction between He ions and gold nanosheet. This work validates the ability of current methodology in dealing with ion collisions in materials.
作者机构：
[Wang, Xinpeng; Wang, XP; Wang, Longfei; Chen, Qian] Guangxi Univ, Sch Resources Environm & Mat, State Key Lab Featured Met Mat & Life Cycle Safety, Nanning 530004, Peoples R China.;[Zeng, Deqian; Ning, Shunyan; Wei, Yuezhou; Zeng, DQ; Yin, Xiangbiao] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Yang, Jingren] Shanghai Acad Environm Sci, State Environm Protect Key Lab Environm Hlth Impac, Shanghai 200233, Peoples R China.
通讯机构：
[Wang, XP ] G;[Zeng, DQ ] U;Guangxi Univ, Sch Resources Environm & Mat, State Key Lab Featured Met Mat & Life Cycle Safety, Nanning 530004, Peoples R China.;Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.
摘要：
An exceptional Z‐scheme CeO2/Bi2WO6 heterojunction photocatalyst is fabricated through a simple in situ liquid‐phase approach. These as‐prepared nanocomposites possess excellent photocatalytic properties for degrading tetracycline (TC), Rhodamine B (RhB), and methylene blue (MB). The toxicity of wastewater after photocatalytic treatment is significantly reduced, making it highly conducive to aquatic life and contributing significantly to environmental sustainability. Abstract The construction of heterojunction photocatalysts is an auspicious approach for enhancing the photocatalytic performance of wastewater treatment. Here, a novel CeO2/Bi2WO6 heterojunction is synthesized using an in situ liquid‐phase method. The optimal 15% CeO2/Bi2WO6 (CBW‐15) is found to have the highest photocatalytic activity, achieving a degradation efficiency of 99.21% for tetracycline (TC), 98.43% for Rhodamine B (RhB), and 94.03% for methylene blue (MB). The TC removal rate remained at 95.38% even after five cycles. Through active species capture experiments, •O2−, h+, and •OH are the main active substances for TC, RhB, and MB, respectively. The possible degradation pathways for TC are analyzed using liquid chromatography‐mass spectrometry (LC‐MS). The photoinduced charge transfer and possible degradation mechanisms are proposed through experimentation and density functional theory (DFT) calculations. Toxicity assessment experiments show a significant reduction in toxicity during the TC degradation process. This study uncovers the mechanism of photocatalytic degradation in CeO2/Bi2WO6 and provides new insights into toxicity assessment.
