摘要：
This study proposes and develops a novel ionic concentration gradient electric generator (i‐CGEG) based on the evaporation rate difference of electrolytes. The i‐CGEG with PVA–Na electrolyte achieves a thermovoltage greater than 200 mV and an energy density of 77.94 J m−2 at a temperature of 323 K. Wearable devices and their corresponding cell modules are also developed to recycle body heat. Abstract Constructing concentration differences between anions and cations at the ends of an ionic conductor is an effective strategy in electricity generation for powering wearable devices. Temperature gradient or salinity gradient is the driving force behind such devices. But their corresponding power generation devices are greatly limited in actual application due to their complex structure and harsh application conditions. In this study, a novel ionic concentration gradient electric generator based on the evaporation difference of the electrolyte is proposed. The device can be constructed without the need for semipermeable membranes, and operation does not need to build a temperature difference. As a demonstration, a PVA–Na ionic hydrogel is prepared as an electrolyte for the device and achieved a thermovoltage of more than 200 mV and an energy density of 77.94 J m−2 at 323 K. Besides, the device exhibits the capability to sustain a continuous voltage output for a duration exceeding 1500 min, as well as enabling charging and discharging cycles for 100 iterations. For practical applications, a module comprising 16 sub‐cells is constructed and successfully utilized to directly power a light‐emitting diode. Wearable devices and their corresponding cell modules are also developed to recycle body heat.
作者机构：
[Tang, Xian; Han, Hai] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Li, Le] Univ South China, Sch Publ Hlth, Hengyang 421001, Peoples R China.;[Wang, Hongqing] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China.;[Wang, Hongqing] Univ South China, Hunan key Lab Design & Applicat Actinide Complexes, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Tang, X ; Li, L ] U;Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;Univ South China, Sch Publ Hlth, Hengyang 421001, Peoples R China.
摘要：
Uranium, highly chemically toxic and radioactive with a long half-life, poses environmental risks due to activities like uranium mining, refining, and nuclear power plant operations. Detecting uranyl ion in real-time is crucial to assess human health risks and control uranium pollution. Electrochemical sensing offers advantages such as sensitivity, selectivity, simplicity, rapidity, and cost-effectiveness, making it ideal for on-site detection of uranyl ion. This paper summarizes recent research progress in electrochemical detection of uranyl. Various techniques including cyclic voltammetry, differential pulse voltammetry, stripping voltammetry, and electrochemical impedance spectroscopy are discussed along with their respective advantages. Detection methods utilizing electrode-modified functional materials like biomaterials, polymers, and nanomaterials are investigated. Probes like DNAzyme, ion-imprinted polymers, and 2D materials are highlighted for their detection mechanism and effectiveness. Electrochemical sensing with these probes achieves nanomolar-level detection limits (nM) with excellent stability and selectivity, suggesting practical applications. Lastly, predictions are made regarding sensing mechanisms, electrode material selection, and adaptability to field conditions for electrochemical detection of uranyl ion.
通讯机构：
[Fangcheng Cao] S;School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, Hunan, P. R. China
会议名称：
1st China-New Zealand Forum on Advanced Materials and Processing Technology (AMPT) / 5th International Forum on Advanced Materials and Processing Technoogies
会议时间：
MAY 28-29, 2021
会议地点：
Jiangsu Univ Sci & Technol, Zhenjiang, PEOPLES R CHINA
摘要：
Zeolites with unique framework structure have wide applications, such as ions’ exchangers, molecular sieves and catalysts. This work focused on the synthesis and characterization of zeolite by recycling coal fly ash as the starting material via hydrothermal method. The intermediate phases and final products were characterized by XRF, XRD, FT-IR, SEM and BET techniques. The effects of aging time on the crystallization/transformation of zeolite were discussed. The results showed that the alkali-activated coal fly ash after hydrothermal process could lead to the formation of zeolite Na-P1. Furthermore, the aging treatment benefited the formation of homogenous zeolite Na-P1 with smaller particle size, larger specific surface area, total pore volume and pore size.
作者机构：
[Tan, Huaxin; Zhang, Peng; Liu, Zhonghua; Liang, Songping; Huang, Yazhou] Hunan Normal Univ, Natl & Local Joint Engn Lab Anim Peptide Drug Dev, Coll Life Sci, Changsha 410081, Hunan, Peoples R China.;[Tan, Huaxin; Xu, Jianghong; Ye, Zhongju; Xiao, Lehui; Chen, Bo] Hunan Normal Univ, Key Lab Phytochem R&D Hunan Prov, Coll Chem & Chem Engn, Changsha 410081, Hunan, Peoples R China.;[Xiao, Lehui] Nankai Univ, State Key Lab Med Chem Biol, Coll Chem, Tianjin Key Lab Biosensing & Mol Recognit, Tianjin 300071, Peoples R China.;[Tan, Huaxin] Univ South China, Dept Biochem & Mol Biol, Sch Pharmaceut & Biol Sci, Hengyang 421001, Peoples R China.
通讯机构：
[Lehui Xiao] K;[Zhonghua Liu] T;The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China<&wdkj&>Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan, 410081, China<&wdkj&>State Key Laboratory of Medicinal Chemical Biology College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Nankai University, Tianjin, 300071, China
会议名称：
19th World Congress of the International-Society-on-Toxinology (IST) / 11th Asia Pacific Congress of the International-Society-on-Toxinology (IST) / 13th Chinese Conference on Toxins and Medical Applications
作者机构：
[Wang, M.] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.;[Shan, D. C.; Liao, Y.] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.
会议名称：
6th Global Conference on Materials Science and Engineering (CMSE)
会议时间：
OCT 24-27, 2017
会议地点：
Beijing, PEOPLES R CHINA
会议主办单位：
[Wang, M.] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.^[Shan, D. C.;Liao, Y.] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.
会议论文集名称：
IOP Conference Series-Materials Science and Engineering
摘要：
In this paper, several mechanical responses of thermoplastic polyurethane (TPU) filled with nano-scale attapulgite (AT) particles, including cyclic loading-unloading behavior, dynamic mechanical behavior and stress relaxation have been investigated. With the addition of AT, it is noticed that the strength, modulus and stress relaxation time of TPU increased significantly compared to that of unfilled materials. It is also observed that, whether filled or unfilled TPU, pronounced inelastic mechanical features such as Mullins effect, residual strain and hysteresis, occurred mainly during the first load loop, but became more notable with AT increase.
期刊：
IOP Conference Series: Earth and Environmental Science,2018年108 ISSN：1755-1307
通讯作者：
Liu, Yong
作者机构：
[Zhao, Guodong; Zhang, Yan; Yang, Zhu; Liu, Yong; Lou, Yalong] Univ South China, Sch Environm Protect & Safety Engn, Hengyang 421001, Hunan, Peoples R China.;[Zhao, Guodong; Zhang, Yan; Yang, Zhu; Liu, Yong; Peng, Guowen; Lou, Yalong] Hu Nan Prov Engn Technol Res Ctr UraniumTailings, Hengyang 421001, Hunan, Peoples R China.;[Peng, Guowen] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Liu, Yong] U;[Liu, Yong] H;Univ South China, Sch Environm Protect & Safety Engn, Hengyang 421001, Hunan, Peoples R China.;Hu Nan Prov Engn Technol Res Ctr UraniumTailings, Hengyang 421001, Hunan, Peoples R China.
会议名称：
3rd International Conference on Environmental Science and Material Application (ESMA)
会议时间：
NOV 25-26, 2017
会议地点：
Chongqing, PEOPLES R CHINA
会议主办单位：
[Lou, Yalong;Liu, Yong;Zhao, Guodong;Zhang, Yan;Yang, Zhu] Univ South China, Sch Environm Protect & Safety Engn, Hengyang 421001, Hunan, Peoples R China.^[Lou, Yalong;Liu, Yong;Peng, Guowen;Zhao, Guodong;Zhang, Yan;Yang, Zhu] Hu Nan Prov Engn Technol Res Ctr UraniumTailings, Hengyang 421001, Hunan, Peoples R China.^[Peng, Guowen] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.
会议论文集名称：
IOP Conference Series-Earth and Environmental Science
摘要：
A year-long monitoring of gamma radiation effective dose rate and radon concentration had been done in the reservoir area of one uranium tailings pond in Hunan province (The monitoring area included indoor and outdoor area of residential buildings and workshops, tailings dam slope). Afterwards, the annual effective radiation dose of the people in that radiation environment had been calculated based on the results of monitoring, as well as a radiation risk assessment. According to the assessment, gamma radiation effective dose rate and radon concentration in the monitoring area were low, and the annual effective radiation dose was far below the international standard (30mSv), which showed that the radiation would not put the people's health at risk. However, the annual effective radiation dose of gamma was far above that of radon in the area of uranium tailings pond; therefore, it's advisable to take quarantine measures in in the area of uranium tailings pond to keep the surrounding residents away from unnecessary ionizing radiation.
作者机构：
[Wang, Zheng-Hao; Luo, Cai-Wu; Lei, Bo] Univ South China, Sch Environm & Safety Engn, Hengyang 421001, Hunan, Peoples R China.;[Li, An] Hunan Inst Sci & Technol, Coll Chem & Chem Engn, Yueyang 414006, Hunan, Peoples R China.;[Liang, Shan] Univ South China, Sch Chem & Chem Engn, Hengyang, Hunan 421001, Peoples R China.;[Chao, Zi-Sheng] Changsha Univ Sci & Technol, Coll Mat Sci & Engn, Changsha 410114, Hunan, Peoples R China.
通讯机构：
[Luo, Cai-Wu] U;Univ South China, Sch Environm & Safety Engn, Hengyang 421001, Hunan, Peoples R China.
会议名称：
3rd International Conference on Mechanics, Materials and Structural Engineering (ICMMSE)
会议时间：
APR 20-22, 2018
会议地点：
Okinawa, JAPAN
会议主办单位：
[Luo, Cai-Wu;Lei, Bo;Wang, Zheng-Hao] Univ South China, Sch Environm & Safety Engn, Hengyang 421001, Hunan, Peoples R China.^[Li, An] Hunan Inst Sci & Technol, Coll Chem & Chem Engn, Yueyang 414006, Hunan, Peoples R China.^[Liang, Shan] Univ South China, Sch Chem & Chem Engn, Hengyang, Hunan 421001, Peoples R China.^[Chao, Zi-Sheng] Changsha Univ Sci & Technol, Coll Mat Sci & Engn, Changsha 410114, Hunan, Peoples R China.
会议论文集名称：
AIP Conference Proceedings
摘要：
In this work, series of catalysts like bimetallic oxides and supported ZSM-5 (acid and/or metal), were applied for the synthesis of pyridine and 3-picoline from acrolein diethyl acetal, water and ammonia in a fixed-bed reactor. The results showed that bimetallic oxides and alkaline catalysts exhibited extremely low catalytic activities whereas HZSM-5 had significantly better than MCM-41 and SBA-15. Among kinds of catalysts, the total yield of pyridine and 3-picoline over Mg-ZSM-5 through ion-exchanged process reached the highest.
期刊：
IOP Conference Series: Materials Science and Engineering,2018年322:1-6 ISSN：1757-8981
通讯作者：
Long, Wei
作者机构：
[Long, Wei; Liu, Huijun; Yan, Xueming] Univ South China, Coll Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.;[Long, Wei] Univ South China, Period Agcy, Hengyang 421001, Hunan, Peoples R China.;[Fu, Li] Hanzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Peoples R China.
通讯机构：
[Long, Wei] U;Univ South China, Coll Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.;Univ South China, Period Agcy, Hengyang 421001, Hunan, Peoples R China.
会议名称：
2017 International Symposium on Application of Materials Science and Energy Materials (SAMSE 2017) (2017材料科学应用与能源材料国际研讨会)
会议时间：
2017-12-28
会议地点：
上海
会议主办单位：
[Long, Wei;Liu, Huijun;Yan, Xueming] Univ South China, Coll Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.^[Long, Wei] Univ South China, Period Agcy, Hengyang 421001, Hunan, Peoples R China.^[Fu, Li] Hanzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Peoples R China.
会议论文集名称：
2017 International Symposium on Application of Materials Science and Energy Materials (SAMSE 2017) (2017材料科学应用与能源材料国际研讨会)论文集
摘要：
A new nano magnetic material Fe3O4@g-C3N4 was prepared by deposition reduction method, which performed good adsorption performance to uranium ion. Characterization results showed that the g-C3N4 particles were wrapped around the nano magnetic Fe3O4 particles, and the textural properties of this material was improved, so the adsorption performance to uranium ion was good. Adsorption experiments of this material demonstrated that the optimum pH value was 10, the optimum mass of adsorbent was 6.5 mg and the optimum adsorption time was 150 min in the initial concentration of 140 mg/L uranium ion solution system, and the maximum adsorption capacity was up to 352.1 mg/g and the maximum adsorption rate was more than 90%.
摘要：
Recently, the computer simulation of molecular imprinted polymer (MIP) has been suggested as a rational method to search for optimal imprinting conditions in environmental science and engineering. In this paper, the sulfisoxazole conformation was optimized and sulfisoxazole and the functional monomers were computed using quantum chemistry method at MP2 level with 6-31++ G* basis set. The binding energy, Delta E, an important parameter for their interactions, was used to select the best functional monomers, and the solvation energy was used to choose the most suitable solvent. The results indicated that the best functional monomer was acrylic acid, the most suitable solvent was carbon tetrachloride, and the most stable molecular model was the hydrogen bond formed between the H18 in sulfisoxazole and the O2 in acrylic acid with 1: 1 molar ratio of SIZ to AA. These results had an insight into the interaction of the sulfisoxazole MIP, which provided theoretical reference for SIZ-MIP.
通讯机构：
[Long, Wei] U;Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.
会议名称：
2016 International Symposium on Materials Application and Engineering (SMAE 2016)
会议时间：
2016-01-01
会议地点：
Chiang Mai, Thailand
会议主办单位：
[Long, Wei;Yan, Xue-Ming;Yang, Xing-Yue;Hu, Nian] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.
会议论文集名称：
MATEC Web of Conferences
摘要：
The reforming mechanism of CO2-CH4 on Nano scale Ni metal catalyst was investigated using the B3LYP density functional method and MP2/Lanl2 dz method. It was found that the reaction include thirteen
摘要：
To reveal the structure-function relationship of heme proteins, and to provide clues for creating artificial heme proteins with improved functions, we here use myoglobin (Mb) as a model protein, and report that its peroxidase activity can be enhanced by construction of two distal histidines and a channel to the heme pocket. It showed that in addition to a single distal histidine with a suitable distance to the heme iron (Phe43 to His43 mutation), a second distal histidine (Leu29 to His29 mutation) can work cooperatively to increase the turnover number, mimicking the role of well-known His-Arg pair in native peroxidases. Moreover, a channel created to the heme pocket by removal of the native His64 gate (His64 to A1a64 mutation) was shown to facilitate the binding of substrate, resulting in enhanced catalytic efficiency for the triple mutant L29H/F43H/H64A Mb, which is beyond the addition of both double mutants, L29H/H64A Mb and F43 H/H64A Mb. These results provide valuable information for elucidating the structure-function relationship of heme proteins. In addition, this study provides clues for design of artificial heme proteins, and the strategy of creating a channel to the heme active center is expected be extended to design of other artificial enzymes with improved catalytic performance. (C) 2016 Elsevier B.V. All rights reserved.
会议论文集名称：
International Conference on Materials, Environmental and Biological Engineering, Part 1: Guilin(CN).28-30 March 2015
关键词：
Staphylococcus aureus ssp. anaerobius (S. aureus);Penicillin G;Targeted drug delivery;Bone;Ti-Al intermetallic compounds porous material
摘要：
Bacterial infection is one of the most common problems after orthopedic implant surgery. If not prevented, bacterial infection can result in serious and life threatening conditions such as osteomyelitis. Thus, in order to reduce chances of such serious complication, patients are often subjected to antibiotic drug therapy for 6-8 weeks after initial surgery. The antibiotics are systemically delivered either intravenously, intramuscularly or topically. Systemic antibiotic delivery entails certain drawbacks such as systemic toxicity and limited bioavailability. Further, in order for the drug to be effective at the site of implantation, high doses are required, which can result in undesired side effects in patients. Thus, local antibiotic therapy is the preferred way of administering drugs. To that end, we have developed Ti-Al intermetallic compounds porous material for local delivery of antibiotics off-implant at the site of implantation. The Ti-Al intermetallic compounds porous materials were fabricated with reactively synthesizing. The fabrication strategies allow us to precisely control the dimension of aperture, thus enabling us to load different amounts of drugs and control the release rates. In this work we have fabricated Ti-Al intermetallic compounds porous material with 40 similar to 200 nm and 2 similar to 5 mu m apertures. We have loaded these tubes with 180, 360 and 540 mu g of penicillin G. The penicillin G release kinetics from the apertures and its effect on Staphylococcus aureus ssp. anaerobius (S. aureus) adhesion were investigated. Further, an osteosarcoma cell line called MG-63 was cultured on penicillin G-loaded aperture to evaluate the effect of Ti-Al intermetallic compounds porous material on cell functionality. Our results indicate that we can effectively fill the apertures with the drug and the drug eluting apertures significantly reduced bacterial adhesion on the surface. Also, there is enhanced MG-63 differentiation on apertures filled with penicillin G.
摘要：
A new potentiometric titration method coupled with multivariate calibration using a flow injection technique for the simultaneous determination of multi-components in alloy has been developed. the titrant is a mixture of EDTA and sodium fluoride, both mercury film electrode and fluorinion selective electrode are inserted in the flow cell. In a process of titration, both the potentiometric of mercury ion and the mixed proportion of reactants at each titration point can be obtained simultaneously from the two electrodes, and then the concentration of each component in the mixture can be obtained from the titration curves by multivariate calibration method. The method is free of volumetric and time measurements, and reduces the consumption of reagents and samples. The method is also very quick in analysis rapidity. The method has been applied for the simultaneous determination of copper, lead and zinc in alloy samples with the relative standard deviation of 0.18%~0.45% and the recovery of 99.5%~101.6%.
摘要：
This study assesses enantioselectivity on the degradation of tebuconazole in wheat grain, straw, and soil in Beijing and Zhejiang under open field conditions. After agricultural application, the analytes were extracted from soil and grain with acetonitrile, and from straw with acetonitrile containing 1% acetic acid through ultrasonic extraction. The extracts were cleaned by dispersive-solid phase extraction, and determined by chiral liquid chromatography-tandem mass spectrometry with a Lux amylose-2 column. The results of field trials indicated that the degradation of tebuconazole enantiomers followed first-order kinetics in straw and soil at the two sites. Their half-lives in straw ranged from 3.88 to 4.93 days, which were shorter than those in soil ranging from 40.76 to 43.86 days. The (-)-tebuconazole showed faster degradation in straw from Beijing and Zhejiang. In Zhejiang soil, preferential degradation of (+)-tebuconazole was observed, whereas (-)-tebuconazole was preferential in Beijing soil. The terminal residues of (-)-tebuconazole in most grains were higher than those of its antipode, indicating significant enantioselective residues.
会议名称：
14th International Conference on Electronic Materials and Packaging (EMAP)
会议时间：
DEC 13-16, 2012
会议地点：
Hong Kong, PEOPLES R CHINA
会议主办单位：
[Zhang, Enhe;Zhao, Yubao] Univ South China, Sch Chem & Chem Engn, 1068 Xueyuan Ave, Hengyang 421000, Peoples R China.^[Zhang, Enhe;Luo, Suibin;Yang, Wenhu;Yu, Shuhui;Sun, Rong] Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China.
会议论文集名称：
International Conference on Electronic Materials and Packaging
摘要：
In this work, a simple two-step route has been developed to synthesize ultrafine barium titanate (BaTiO3) with size ranging from 30 nm to 100nm by reacting barium hydroxide with tetrabutyl titanate in mixing solvent. This method facilitates the process-control and the property tailoring of the particles. The effect of 1,4-butylene glycol on hydrolysis rate of tetrabutyl titanate, temperature, solvent ratio between isopropanol and water, the particle size, the crystalline phase have been investigated. The prepared BaTiO3 nanoparticles were characterized using X-ray diffraction and scanning electron microscopy (SEM). The results show that the particle size can be easily tuned by adjusting the ratio of 1, 4-butylene glycol, isopropanol and water in solution. The dielectric behavior of the BaTiO3 /PVDF at low frequency show that the interfacial polarization acts as an important role for the high dielectric constant (epsilon(r)).
作者机构：
[Chen, Rixiong; Zhao, Yubao; Qin, Jun; Zhang, Na; Wu, Fengjiao] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China.;[Wu, Zhaofeng] Chinese Acad Sci, Fujian Inst Res Struct Matter, Fuzhou 350002, Peoples R China.
通讯机构：
[Zhao, Yubao] U;Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China.
会议名称：
International Conference on Energy, Environment and Sustainable Development (ICEESD 2011)
会议时间：
OCT 21-23, 2011
会议地点：
Shanghai Univ Elect Power, Shanghai, PEOPLES R CHINA
会议主办单位：
Shanghai Univ Elect Power
会议论文集名称：
Advanced Materials Research
关键词：
Hydrothermal Ion Exchange;Li4Ti5O12;Nanostructure;Titanate
摘要：
Spinel Li4Ti5O12 nanostructures were synthesized by hydrothermal treatment of hydrogen titanate at 150 oC and further calcinated at 400~750 oC. Their physicochemical features were characterized by TG/DSC, XRD and TEM techniques. Results showed that the Li4Ti5O12 phase with its crystal size of tens of nanometers was likely produced by the reaction between Li2TiO3 and orthorhombic TiO2 upon thermal treatment, and such reaction would be exothermic.
