Uptake and separation of Xe and Kr by a zeolitic imidazolate framework with a desirable pore window
作者：
Luo, Shihui;Ma, Fuyin;Wang, Xia;Yuan, Mengjia;Chen, Lanhua;...
期刊：
Journal of Radioanalytical and Nuclear Chemistry ,2020年324(3):1275-1281 ISSN：0236-5731
通讯作者：
Tang, Quan;Wang, Shuao
作者机构：
[Qiu, Shoukang; Tang, Quan; Luo, Shihui] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.;[Yuan, Mengjia; Ma, Fuyin; Chen, Lanhua; Wang, Xia; Wang, Shuao] Soochow Univ, State Key Lab Radiat Med & Protect, Collaborat Innovat Ctr Radiol Med, Sch Radiat Med & Protect,Jiangsu Higher Educ Inst, Suzhou 215123, Peoples R China.
通讯机构：
[Tang, Quan] U;[Wang, Shuao] S;Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.;Soochow Univ, State Key Lab Radiat Med & Protect, Collaborat Innovat Ctr Radiol Med, Sch Radiat Med & Protect,Jiangsu Higher Educ Inst, Suzhou 215123, Peoples R China.
关键词：
cobalt 60;krypton 85;unclassified drug;xenon 133;zeolite;zeolitic imidazolate;adsorption kinetics;Article;controlled study;crystal structure;desorption;gamma radiation;hydrolysis;magnetic separation;molecular size;molecular stability;porosity;radiation dose;radiation dose distribution;synthesis;thermogravimetry;thermostability;X ray diffraction
摘要：
Crystalline solids of zeolitic imidazolate framework (ZIF)-69 with a suitable pore window size matching with atomic diameter of xenon is utilized for this task, showing notable performance for Xe/Kr capture and separation as well as decent hydrolytic and irradiation stabilities. The results illustrate that the saturated uptake amount of Xe by ZIF-69 is 2.46mmol/g at 298K, while Kr uptake is only 0.55mmol/g. Importantly, the separation ratio of Xe/Kr is 8.35, one of the highest values among all solid sorbent material reported up to now. These findings suggest that ZIF-69 is a potential candidate for the application of xenon capture and purification form a gas mixture containing Kr. © 2020, Akadémiai Kiadó, Budapest, Hungary.
语种：
英文
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Parametric Analysis of the In-bed gas flowing calorimetry of metal hydride bed employed in CFETR SDS
作者：
Peng Fan;Wanfa Fu;Ming Wen;Zhi Zhang;Tao Tang;...
期刊：
Journal of Physics: Conference Series ,2020年1549(2):022018 ISSN：1742-6588
作者机构：
[Wanfa Fu; Quan Tang] School of Nuclear and Technology, University of South China, Hengyang 421001, China;[Ming Wen; Zhi Zhang; Tao Tang] Institute of Materials, China Academy of Engineering Physics, Jiangyou 621908, China;[Peng Fan] School of Nuclear and Technology, University of South China, Hengyang 421001, China<&wdkj&>Institute of Materials, China Academy of Engineering Physics, Jiangyou 621908, China
摘要：
<jats:title>Abstract</jats:title>
<jats:p>Gas flowing calorimetry is considered to be one of the most promising tritium measurements method in fusion fuel cycles, yet the parametric study of the structure design is still insufficient. In this study, three-dimensional models, combining with commercial computational fluid software, has been used to evaluate the calorimetric performance of tritium storage beds. The effects of structural geometry and cooling method on the heat transfer behavior have been systematically studied. The results show that the proposed model can effectively characterizes the evolution of the temperature difference of the cooling gas with time during the calorimetric process. Typically, increasing number of the U-shaped cooling tubes, thickness of the metal hydride layer and flow rate of the cooling liquid are beneficial for reducing the thermal equilibrium time. When the number of calorimeter bed cooling tubes is 12, the thickness of the metal hydride layer is 23, and the cooling gas is 20 SLMP of CO2, the thermal equilibrium time is only 4.5h. Furthermore, through optimizing the structural parameters, which can have an important influence on calorimetric performance, highly efficient and accurate gas flow calorimeter can be developed in the future.</jats:p>
语种：
英文
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Developing the radium measurement system for the water Cherenkov detector of the Jiangmen Underground Neutrino Observatory
作者：
Xie, L. F.;Liu, J. C.;Qiu, S. K.;Guo, C.;Yang, C. G.;...
期刊：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT ,2020年976:164266 ISSN：0168-9002
通讯作者：
Tang, Q;Guo, C
作者机构：
[Tang, Q.; Xie, L. F.; Qiu, S. K.] Univ South China, Sch Nucl Sci & Technol, Hengyang, Peoples R China.;[Guo, C.; Zhang, Y. P.; Zhang, P.; Liu, J. C.; Yang, C. G.] Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing, Peoples R China.;[Yang, C. G.] Univ Chinese Acad Sci, Sch Phys, Beijing, Peoples R China.
通讯机构：
[Guo, C ] C;[Tang, Q ] U;Univ South China, Sch Nucl Sci & Technol, Hengyang, Peoples R China.;Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing, Peoples R China.
关键词：
Cerenkov counters;Neutrons;Observatories;Radium;Radon;Liquid scintillator detectors;Measurement sensitivity;Measurement system;Radium concentrations;Radium measurements;Radon concentrations;Water Cherenkov detectors;Water measurements;Particle detectors
摘要：
The Jiangmen Underground Neutrino Observatory is proposed to determine neutrino mass hierarchy using a 20 ktonne liquid scintillator detector. Strict radio-purity requirements have been put forward for all the components of the detector. According to the MC simulation results, the radon dissolved in the water Cherenkov detector should be below 200 mBq/m3. Radium, the progenitor of radon, should also be taken seriously into account. In order to measure the radium concentration in water, a radium measurement system, which consists of a radium extraction system, a radon emanation chamber and a radon concentration measurement system, has been developed. In this paper, the updated radon concentration in gas measurement system with a one-day-measurement sensitivity of ∼5 mBq/m3, the detail of the development of the radium concentration in water measurement system with a sensitivity of ∼23 mBq/m3 as well as the measurement results of Daya Bay water samples will be presented. © 2020 Elsevier B.V.
语种：
英文
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MEASUREMENT OF THE POTENTIAL ALPHA ENERGY CONCENTRATION OF RADON PROGENY BY USING LIQUID SCINTILLATION COUNTING METHOD
作者：
Feng, Bin;Tang, Quan;Zhang, Hui;Chen, Bo;Qiu, Shoukang;...
期刊：
RADIATION PROTECTION DOSIMETRY ,2019年184(3-4):440-443 ISSN：0144-8420
通讯作者：
Zhuo, Weihai
作者机构：
[Feng, Bin; Zhuo, Weihai; Chen, Bo] Fudan Univ, Inst Radiat Med, Shanghai 200032, Peoples R China.;[Qiu, Shoukang; Tang, Quan] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.;[Zhang, Hui] Shanghai Customs, Tech Ctr Anim Plant & Food Inspect & Quarantine, Shanghai 200002, Peoples R China.
通讯机构：
[Zhuo, Weihai] F;Fudan Univ, Inst Radiat Med, Shanghai 200032, Peoples R China.
会议名称：
9th International Conference on High Levels of Environmental Radiation Areas - For Understanding Chronic Low-Dose-Rate Radiation Exposure Health Effects and Social Impacts
会议时间：
SEP 24-27, 2018
会议地点：
Hirosaki Univ, Aomori, JAPAN
会议主办单位：
Hirosaki Univ
摘要：
For more accurate measurement of the potential alpha energy concentration (PAEC) of radon progeny by the liquid scintillation counting (LSC) method, its counting efficiency was studied in this work. A radon progeny standard source was used to provide different concentrations of radon progeny, and the progeny collected on the sampling filters were measured with a low background liquid scintillation counter. The result showed that the quenching effect could not be ignored, and the counting efficiency was estimated to be 86.12%. The co-comparison experiments showed that the PAECs of radon progeny measured by the LSC methods were in generally consistent with those of other three methods. It indicates that for more accurate measurements of PAEC of radon progeny by using the LSC method, the counting efficiency should be well determined.
语种：
英文
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活性炭吸附测氡法静态吸附系数测量研究
作者：
谢礼飞;丘寿康;唐泉;李晟;赵晶;...
期刊：
核电子学与探测技术 ,2019年39(03):255-259 ISSN：0258-0934
作者机构：
南华大学核科学技术学院,湖南衡阳,421001;[罗诗慧; 赵晶; 丘寿康; 谢礼飞; 李晟; 唐泉] 南华大学
关键词：
活性炭;氡;静态吸附系数
摘要：
建立了一种简便的静态吸附系数的测量方法,并对相关活性炭吸附氡的静态吸附系数进行测量,将测量结果与相同条件下动态吸附法测量的相应结果进行对比.从比较结果来看,静态吸附系数Ks与动态吸附系数Kd的比值恒定,接近于1.这种方法可用于活性炭种类的筛选和吸附条件的初期探索,可为最终活性炭吸附的工程条件的选择和确定节省大量的初期工作.此外,此方法也可为其他吸附材料对氡吸附系数的初步测量及相关测量研究提供一种简单快速的测定方法.
语种：
中文
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半连续法超临界CO2流体萃取花生油及油品质检
作者：
李晟;宋志君;唐泉;谢礼飞;罗诗慧;...
期刊：
食品工业 ,2019年40(5):164-166 ISSN：1004-471X
作者机构：
南华大学核科学技术学院;[宋志君] 中国原子能科学研究院;[罗诗慧; 赵晶; 谢礼飞; 李晟; 唐泉] 南华大学
关键词：
超临界CO2;萃取;花生油;半连续法;油品质检
摘要：
采用半连续法研究了超临界二氧化碳(SC-CO2)萃取花生油的最佳萃取工艺条件,并将提取的花生油送至国家粮油质量监督检测中心检测.结果 表明,SC-CO2萃取花生油的最佳工艺条件为:萃取温度50℃,萃取压力30 MPa,动态萃取120 min.在此条件下出油率可达49％.检测结果显示:不溶性杂质含量＜00.003 2％,酸值＜12.5(KOH) mg/g,过氧化值＜1.6 mmol/kg,未检出溶剂残留.超临界萃取的花生毛油色泽清亮、淡黄透明、出油率高,重要参数均能达到国家一级油标准,证明超临界萃取技术是一种能高效萃取高品质花生油的方法.
语种：
中文
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大亚湾地下实验室氡浓度测量与评估
作者：
徐程;郭聪;丘寿康;张永鹏;唐泉;...
期刊：
核电子学与探测技术 ,2018年38(3):341-345 ISSN：0258-0934
通讯作者：
Tang, Q.
作者机构：
南华大学核科学技术学院,湖南 衡阳,421001;中国科学院高能物理研究所,北京,100049;中国科学院高能物理研究所,北京100049;核探测与核电子学国家重点实验室,北京100049;[刘金昌; 安广朋; 胡涛; 周莉; 张永鹏; 郭聪] 中国科学院高能物理研究所
通讯机构：
School of Nuclear Science and Technology, University of South China, Hengyang, Hunan, China
关键词：
地下实验室;氡浓度;水氡;氡析出率
摘要：
采用多种测氡方法对大亚湾反应堆中微子地下实验室空气及水中氡浓度,大厅墙壁及水池壁氡析出率进行了评估。测量数据显示:大亚湾地下实验室大厅墙壁不同地点的氡析出率值大小相差较大,但水池中的水氡浓度依然呈现出靠近水池壁处更高的现象。氮封及膜覆盖对地下实验厅及水池中氡浓度的降低有作用。
语种：
中文
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从高磷酸含铀废液中回收铀的试验研究
作者：
龙亮;郑楠;刘书衡;唐泉;李晟;...
期刊：
铀矿冶 ,2018年37(4):304-308 ISSN：1000-8063
作者机构：
南华大学核科学技术学院,湖南衡阳,421001;中国核工业理化工程研究院,天津,300000;[刘书衡; 谢礼飞; 龙亮; 李晟; 唐泉] 南华大学;[郑楠] 核工业理化工程研究院
关键词：
铀;磷酸介质;溶剂萃取
摘要：
用D2EHPA-TRPO萃取和化学除磷的组合工艺,回收某研究院30%高磷酸废液中的铀。先用萃取法萃取铀,铀萃取率达99%以上,反萃率为99.8%,还有约1%的铀留在萃余液中。通过添加CaCO3与Na2CO3沉淀除去萃余液中的磷,滤液及洗涤液蒸发后得到的含铀松状碱渣,返回至料液溶解,进入萃取工序。试验结果表明:萃取剂经过10次循环仍能保持单级萃取率在90%以上,工艺过程中铀的总回收率达到99.9%;最终获得的产品铀含量为63.26%,达到一级品要求。试验结果对铀资源的综合利用和环境保护具有一定意义。
语种：
中文
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某核电厂地下水氢氧稳定同位素特征及其示踪意义
作者：
吴春勇;王旭宏;唐泉;耿学勇
期刊：
科技成果管理与研究 ,2018年(5):36-39 ISSN：1673-6516
作者机构：
[吴春勇] 南华大学核科学技术学院,湖南 衡阳 421001 中国核电工程有限公司,北京 100840;中国核电工程有限公司,北京,100840;南华大学核科学技术学院,湖南 衡阳,421001;[王旭宏; 耿学勇] 中国核电工程有限公司;[唐泉] 南华大学
关键词：
核电厂;辐射防护;地下水;同位素
摘要：
文章通过对我国某核电厂不同含水组地下水D和18O组成进行分析,并对比所在区域大气降水值和地表水值,结果显示,不同含水组地下水氢氧稳定同位素组成存在明显差异,垂向上自上而下呈现由大到小的变化趋势,反映出更新世至全新世以来气温总体上逐渐变暖的气候变化特征;浅层地下水主要来源于大气降水的垂向入渗补给,其次为地表水的侧向入渗补给,深层地下水主要接受更新世冰期古水的补给;浅层地下水的更新能力强于第Ⅱ含水组深层地下水;浅层地下水受到明显的蒸发影响,与大气降水之间存在相互转化关系,而与深层地下水之间水力联系微弱.
语种：
中文
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磷屏成像的计量性能测试及其在大面积平面源均匀性评价中的应用
作者：
符燕;梁珺成;邹宇;杨志杰;唐泉;...
期刊：
核化学与放射化学 ,2017年39(1):83-89 ISSN：0253-9950
通讯作者：
Tang, Q.
作者机构：
[唐泉] School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China;[梁珺成; 杨志杰; 张明; 刘皓然; 赵清] Department of Ionizing Radiation, National Institute of Metrology, Beijing, 100029, China;College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China;[符燕] School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China<&wdkj&>Department of Ionizing Radiation, National Institute of Metrology, Beijing, 100029, China;[邹宇] Department of Ionizing Radiation, National Institute of Metrology, Beijing, 100029, China<&wdkj&>College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
通讯机构：
School of Nuclear Science and Technology, University of South China, Hengyang, China
关键词：
磷屏成像;计量性能;大面积平面源;均匀性
摘要：
针对磷屏成像技术在放射性活度计量领域的应用需求,开展了磷屏成像响应的重复性、一致性、时间线性与活度线性研究。结果表明:成像灰度值重复性为8.6%(k=2),190 mm×200 mm的磷屏成像区域对于点状源的响应一致;磷屏成像的灰度值与照射的时间成正比,相同照射时间所产生的灰度值与源的发射率也成正比。以这些计量性能结果为基础,严格按照ISO 8769:2010的均匀性评价规则对150 mm×100 mm的大面积源进行了均匀性测量,建立了定量和直观表达平面源均匀性的方法,从而为改善平面源的制备工艺,建立符合国际标准的大面积源计量器具提供了参考评估方法。
语种：
中文
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聚合物膜氡渗透系数的测定
作者：
程芬;李恒;丘寿康;唐泉
期刊：
原子能科学技术 ,2017年51(9):1698-1703 ISSN：1000-6931
通讯作者：
Tang, Quan(tangquan528@sina.com)
作者机构：
[丘寿康; 程芬; 李恒; 唐泉] School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China
通讯机构：
School of Nuclear Science and Technology, University of South China, Hengyang, China
关键词：
氡;渗透系数;扩散系数
摘要：
为选出适用于我国江门中微子实验的氡屏蔽聚合物膜材料,研究了稳态时利用液体闪烁计数器测定聚合物薄膜氡渗透系数的装置和方法。实验测得了尼龙膜和聚乙烯膜的氡渗透系数并与文献中的数值范围进行了对比,测定结果表明,常用研究材料中尼龙膜的氡渗透系数较低,对降低氡浓度有显著效果。此外实验验证了薄膜氡渗透系数测定的主要影响因素,包括简化计算的方法、系统达到稳态的时长、环境湿度和温度等,并对进一步标准化测定聚合物薄膜的氡渗透系数提出了参考意见。
语种：
中文
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氡在聚合物膜中渗透系数的测定
作者：
刘茹佳;李军;丘寿康;程芬;陈颖;...
期刊：
核电子学与探测技术 ,2016年36(2):189-192 ISSN：0258-0934
通讯作者：
Tang, Q.
作者机构：
南华大学核科学技术学院;[李军] 新疆辐射环境监督站;[陈颖; 程芬; 丘寿康; 唐泉; 刘茹佳] 南华大学
通讯机构：
School of Nuclear Science and Technology, University of South China, Hengyang, Hunan, China
关键词：
液体闪烁计数;氡;渗透系数;聚合物膜
摘要：
为向江门中微子实验用膜的选择提供参考，研究了一种测定氡在聚合物膜中渗透系数的方法，设计加工出可利用闪烁液进行采样的膜渗透采样装置，并测量了不同类型聚合物膜的渗透系数。实验结果表明：膜渗透采样装置的本底及密闭性符合实验要求；聚合物膜表面氡析出达到稳定状态至少需要18 d；PVC膜的氡渗透系数最低。
语种：
中文
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Study on adsorptive property of bentonite for cesium
作者：
Liu, Hong-Juan;Xie, Shui-Bo* ;Xia, Liang-Shu;Tang, Quan;Kang, Xi;...
期刊：
Environmental Earth Sciences ,2016年75(2):1-7 ISSN：1866-6280
通讯作者：
Xie, Shui-Bo
作者机构：
[Tang, Quan; Xia, Liang-Shu; Liu, Hong-Juan; Kang, Xi] Univ South China, Inst Nucl Sci & Technol, 28 West Changsheng Rd, Hengyang 421001, Hunan, Peoples R China.;[Xie, Shui-Bo] Univ South China, Hunan Prov Key Lab Pollut Control & Resources Tec, Hengyang 421001, Peoples R China.;[Huang, Fei] South China Agr Univ, Minist Agr, Key Lab Agroenvironm Trop, Guangzhou 510642, Guangdong, Peoples R China.
通讯机构：
[Xie, Shui-Bo] U;Univ South China, Hunan Prov Key Lab Pollut Control & Resources Tec, Hengyang 421001, Peoples R China.
关键词：
Adsorption;Bentonite;Cesium
摘要：
Characterization and adsorption analysis of the bentonite samples were studied by scanning electron microscopy (SEM), energy disperse spectroscopy (EDS), Fourier transformed infrared (FTIR) spectroscopy, and X-ray diffraction (XRD). SEM, EDS, FTIR, and XRD results showed that the ion exchange is one of the adsorption mechanisms of Cs+ onto bentonite and the Al–O–H and H–O–H groups of the bentonite might participate in the Cs+ adsorption process. The effect of the contact time, different concentrations of Cs+, pH value, and bentonite dosage on the adsorption of Cs+ onto bentonite were examined. The study results showed that cesium ions could be effectively adsorbed by bentonite. The adsorption equilibrium was established after 24h. The distribution coefficient decreased from 1614.57 to 84.93mL/g, but the adsorption capacity increased from 8.71 to 21.79mg/g when the initial Cs concentration increased from 100 to 500mg/L. The distribution coefficient and adsorption capacity for the cesium ions increased with an increase of solution pH in the range of 3 and 11 except for a little decrease at pH 7. The distribution coefficient increased from 66.54 to 3498.62mL/g, but the adsorptive capacity decreased from 23.48 to 2.86mg/g with an increasing amount of the adsorbent from 0.25 to 0.5g. Adsorption isotherms fitted with Freundlich models well. Thermodynamic studies indicated that the sorption capacity of the sorption of cesium ions onto bentonite became weak with a temperature increase and showed the sorption of cesium ions onto bentonite was exothermic. © 2015, Springer-Verlag Berlin Heidelberg.
语种：
英文
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活性炭吸附-液闪法测量建材氡析出率的研究
作者：
刘茹佳;唐泉;丘寿康;吴淼;陈颖
期刊：
原子能科学技术 ,2016年50(10):1915-1920 ISSN：1000-6931
通讯作者：
Tang, Quan(tangquan528@sina.com)
作者机构：
[刘茹佳; 唐泉; 丘寿康; 吴淼; 陈颖] School of Nuclear Science and Technology, University of South China, Hengyang;421001, China;[刘茹佳; 唐泉; 丘寿康; 吴淼; 陈颖] 421001, China
通讯机构：
School of Nuclear Science and Technology, University of South China, Hengyang, China
关键词：
氡析出率;活性炭;液闪;建材
摘要：
为实现建材样品氡析出率的自动化测量,本文研究了一种活性炭吸附-液闪测量建材氡析出率的方法,并通过比较活性炭吸附-液闪法与活性炭吸附-γ能谱法在氡析出率标准装置、铀矿砂水泥砖及发泡砖表面测量值之间的差异,验证该方法的准确性。测量结果表明:活性炭吸附-液闪法可在一定条件下忽略反扩散的影响;根据制备的C-LS-Rn标准源可得其刻度系数为72.36min~(-1)·Bq~(-1),对氡的计数效率为120%;累积时间为72h的最小可探测氡析出率为8.15×10~(-4)Bq/(m~2·s);该方法与活性炭吸附-γ能谱法测量结果的相对偏差为10%左右,在可接受范围内。
语种：
中文
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U(VI) capture from aqueous solution by highly porous and stable MOFs: UiO-66 and its amine derivative
作者：
Luo, Bai-Cheng;Yuan, Li-Yong* ;Chai, Zhi-Fang;Shi, Wei-Qun;Tang, Quan*
期刊：
Journal of Radioanalytical and Nuclear Chemistry ,2016年307(1):269-276 ISSN：0236-5731
通讯作者：
Tang, Quan;Yuan, Li-Yong
作者机构：
[Luo, Bai-Cheng; Tang, Quan] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Luo, Bai-Cheng; Yuan, Li-Yong; Chai, Zhi-Fang; Shi, Wei-Qun] Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Energy Chem, Beijing 100049, Peoples R China.;[Chai, Zhi-Fang] Soochow Univ, Sch Radiol & Interdisciplinary Sci, Suzhou 215123, Peoples R China.
通讯机构：
[Tang, Quan] U;[Yuan, Li-Yong] C;Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Energy Chem, Beijing 100049, Peoples R China.
关键词：
cerium;chromium;cobalt;lanthanum;metal organic framework;neodymium;nickel;sorbent;strontium;unclassified drug;uranium;uranium zirconium;ytterbium;zinc ion;zirconium;zirconium dicarboxylate;zirconium dicarboxylate amide;aqueous solution;Article;chemical analysis;chemical parameters;contact time;controlled study;ecosystem restoration;heavy metal removal;infrared spectroscopy;ionic strength;metal extraction;pH;sorption isotherm;stereochemistry;surface area;synthesis;thermogravimetry;X ray diffraction
摘要：
Metal–organic frameworks (MOFs) UiO-66 and its amine derivative (UiO-66-NH2) with high surface area and unprecedented chemical stability were synthesized and first explored for U(VI) capture from aqueous solutions. At pH 5.5, U(VI) sorption reach equilibrium in ca. 4h and the maximum sorption capacity is more than 100mgg−1. Moreover, they show desirable selectivity towards U(VI) over a range of competing metal ions. Sorption results demonstrate that introduction of amino groups into MOFs does not enhance U(VI) sorption, probably result from the lower activity of aromatic amines, decrease of surface area and formation of intermolecular hydrogen bonds. © 2015, Akadémiai Kiadó, Budapest, Hungary.
语种：
英文
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Al_2O_3纯化闪烁液过程中的放射性污染
作者：
吴淼;李军;丘寿康;李连山;刘茹佳;...
期刊：
核化学与放射化学 ,2016年38(2):97-102 ISSN：0253-9950
通讯作者：
Tang, Q.
作者机构：
[吴淼; 丘寿康; 李连山; 李军; 唐泉] Institute of Nuclear Science and Technology, University of South China, Hengyang, 421001, China;[刘茹佳] Surveillance Station of Xinjiang Radiation Environment, Urumqi, 830011, China
通讯机构：
Institute of Nuclear Science and Technology, University of South China, Hengyang, China
关键词：
闪烁液;氡溶解;放射性污染
摘要：
Al_2O_3可用于纯化闪烁液,但在纯化过程中有可能引入放射性污染。本工作对Al_2O_3纯化闪烁液过程中氡及Al_2O_3本身放射性对闪烁液的污染问题进行了研究。研究结果表明:通过Al_2O_3与闪烁液的混合澄清实验,发现若有细小Al_2O_3颗粒悬浮于闪烁液中会对闪烁液产生污染。但经过滤实验,发现过滤纯化闪烁液过程中的放射性污染主要来源于环境空气中氡的溶解,Al_2O_3过滤柱能阻挡绝大部分Al_2O_3中的放射性核素随着极细颗粒进入闪烁液。排除氡的影响后,在标准偏差范围内,未过滤与经Al_2O_3过滤后的闪烁液的放射性计数率无明显变化,说明Al_2O_3样品中的放射性对闪烁液的影响已低于液闪的探测灵敏度。
语种：
中文
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A simple design concept for elimination of the impact of humidity on radon measurements using electrostatic collection
作者：
Tan, Yanliang* ;Xiao, Detao;Zhou, Qingzhi;Tang, Quan;Shan, Jian;...
期刊：
Stochastic Environmental Research and Risk Assessment ,2016年30(8):2303-2308 ISSN：1436-3240
通讯作者：
Tan, Yanliang
作者机构：
[Tan, Yanliang] Hengyang Normal Univ, Coll Phys & Elect Engn, Hengyang City 421008, Hunan Province, Peoples R China.;[Zhou, Qingzhi; Tang, Quan; Shan, Jian; Xiao, Detao] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Kearfott, Kimberlee] Univ Michigan, Dept Nucl Engn & Radiol Sci, Ann Arbor, MI 48109 USA.
通讯机构：
[Tan, Yanliang] H;Hengyang Normal Univ, Coll Phys & Elect Engn, Hengyang City 421008, Hunan Province, Peoples R China.
关键词：
Radon monitor;Humidity;Air pressure;Collection efficiency;Neutralization rate
摘要：
The detection efficiency of electrostatic collection radon monitors is influenced by the humidity of the air in the collection cell. This is due to the recombination of positively charged 218Po with OH− ions, whose concentration depends on humidity. A novel design of an electrostatic collection cell, in which the air pressure in the cell is less than the atmospheric pressure, is proposed to eliminate the impact of humidity. As a result of the lower air pressure, the drift velocity of the positively charged 218Po in the electric field increases, so the collection time decreases. A model predicting the collection efficiency of positively charged 218Po in this kind of electrostatic collection cell is presented. Based on the model, if the air pressure in the cell is sufficiently low, the collection efficiency will be approximately a constant and the dependency of the collection efficiency of the positively charged 218Po upon the water vapor concentration can be ignored. This approach can be applied to develop a new radon monitor.
语种：
英文
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Research on the perturbation phenomenon while tracing the radon concentration in real time
作者：
Tan, Yanliang* ;Xiao, Detao;Tang, Quan;Shan, Jian;Zhou, Qingzhi;...
期刊：
Stochastic Environmental Research and Risk Assessment ,2015年29(3):755-760 ISSN：1436-3240
通讯作者：
Tan, Yanliang
作者机构：
[Tan, Yanliang] Hengyang Normal Univ, Depatrment Phys & Elect, Hengyang City 421008, Hunan, Peoples R China.;[Zhou, Qingzhi; Tan, Yanliang; Tang, Quan; Feng, Bin; Shan, Jian; Xiao, Detao] Univ South China, Sch Nucl Sci & Technol, Hengyang City 421001, Hunan, Peoples R China.
通讯机构：
[Tan, Yanliang] H;Hengyang Normal Univ, Depatrment Phys & Elect, Hengyang City 421008, Hunan, Peoples R China.
关键词：
Radon concentration;Perturbation phenomenon;Measurement errors
摘要：
Generally, researchers are interested in time averaged radon concentration levels. However when we study the migration and adsorption characteristics of radon, the measurement of radon concentration in real time is important. Radon monitors based on electrostatic collection method cannot follow the rapid changes in radon concentration. The main reason for this is that a sufficient decay time is needed in order for the radon concentration in the internal cell of radon monitor to come to equilibrium with the <sup>218</sup>Po. We propose a novel algorithm for determining the actual radon concentration versus time, derived from the data provided by the radon monitor. However there is a distinct ‘perturbation’phenomenon associated with this procedure when the measurement cycle time is short. In this paper we will also analyze the source of this perturbation phenomenon and provide an improved process model, based upon a faster convergence method that enables reduction of this perturbation to acceptable limits. This model can be used to improve the measurements for any radon monitor like Rad7 based on electrostatic collection for tracing the radon concentration on short measurement cycles. ©2014, Springer-Verlag Berlin Heidelberg.
语种：
英文
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不同因素对膨润土吸附Cs+性能的影响
作者：
刘红娟;谢水波;蒋亮;唐泉;夏良树;...
期刊：
中国科技论文 ,2015年(12):1398-1402 ISSN：2095-2783
作者机构：
南华大学核科学技术学院,湖南衡阳,421001;南华大学污染控制与资源化技术湖南省高校重点实验室,湖南衡阳,421001;[刘红娟; 夏良树; 康玺; 唐泉; 谢水波; 刘迎九; 蒋亮] 南华大学
关键词：
膨润土;吸附机理
摘要：
采用静态批式法研究了不同 pH 值、Cs＋浓度及固液比对膨润土吸附 Cs＋的影响，同时，利用傅里叶红外光谱（FTIR）、扫描电镜（SEM）、X 射线能谱（EDS）和 X 射线衍射仪（XRD）分析了膨润土对 Cs＋的吸附过程。研究结果表明：Cs＋初始浓度在100～500 mg／L 变化时，膨润土对 Cs＋的吸附效率由94．17％下降至47．09％，吸附量却从8．71 mg／g 上升至21．79 mg／g；膨润土对 Cs＋的吸附效率与固液比存在正相关，当固液比在0．005～0．1变化时，膨润土对 Cs＋的吸附效率由39．96％增加至97．22％，而吸附量由23．48 mg／g 降至2．86 mg／g；pH 值增大时膨润土对 Cs＋的吸附性能加强，除了在 pH 值为7的时候略有下降，且吸附前溶液无论为酸性、中性还是碱性，吸附后溶液都呈中性。FTIR、SEM-EDS 和 XRD 分析结果表明，膨润土吸附Cs＋的过程主要表现为离子交换反应和表面配位反应。
语种：
中文
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A proposal to evaluate radioactivity of cement containing coal fly ash from China national standard: “Limits of radionuclides in building materials”
作者：
Tan, Yanliang* ;Liu, Fudong;Tokonami, Shinji;Xiao, Detao;Shan, Jian;...
期刊：
Journal of Radioanalytical and Nuclear Chemistry ,2015年306(1):277-281 ISSN：0236-5731
通讯作者：
Tan, Yanliang
作者机构：
[Tan, Yanliang] Hengyang Normal Univ, Dept Phys & Elect, Hengyang 421008, Hunan, Peoples R China.;[Liu, Fudong] Minist Environm Protect, Nucl & Radiat Safety Ctr, Beijing 100082, Peoples R China.;[Tokonami, Shinji; Pornnumpa, Chanis; Kudo-Yokota, Hiromi; Wanabongse, Paitoon] Hirosaki Univ, Inst Radiat Emergency Med, Dept Radiat Phys, Hirosaki, Aomori 0368564, Japan.;[Zhou, Qingzhi; Tang, Quan; Shan, Jian; Xiao, Detao] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.;[Hosoda, Masahiro] Hirosaki Univ, Grad Sch Hlth Sci, Hirosaki, Aomori 0368564, Japan.
通讯机构：
[Tan, Yanliang] H;Hengyang Normal Univ, Dept Phys & Elect, Hengyang 421008, Hunan, Peoples R China.
关键词：
cement;radium;radon 222;Article;building;chemical composition;China;concentration (parameters);fly ash;material coating;mathematical analysis;physical chemistry;radioactivity
摘要：
This paper is a proposal to evaluate radioactivity of coal fly ash used in cement according the national standard titled “Limits of radionuclides in building materials”. Because concrete includes cement and nature materials with low radioactivity, we propose that the limits of radionuclides in cement contained coal fly ash can be two times relaxed than that of this national standard, and the limit of the internal exposure index on cement may be unnecessary. There is no obviously increase of the Rn-222 exhalation rate from aerated concrete block when the radium content is similar to that of common concrete block. © 2015, Akadémiai Kiadó, Budapest, Hungary.
语种：
英文
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