蒙脱土/Fe_3O_4/腐殖酸复合材料对U(Ⅵ)的作用机制
作者：
司子彦;谢水波;朱奥琦;王国华;刘迎九;...
期刊：
材料工程 ,2021年49(3):158-166 ISSN：1001-4381
通讯作者：
Xie, Shui-Bo(xiesbmr@263.net)
作者机构：
[司子彦; 谢水波; 朱奥琦; 王国华; 刘迎九; 莫官海] School of Civil Engineering, University of South China, Hengyang;421000, China;Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hengyang;[司子彦; 谢水波; 朱奥琦; 王国华; 刘迎九; 莫官海] 421000, China;[谢水波; 刘迎九] 421000, China<&wdkj&>Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hengyang
通讯机构：
[Xie, S.-B.] S;School of Civil Engineering, China
关键词：
蒙脱土/Fe_3O_4/腐殖酸复合材料;吸附剂;吸附;还原;络合
摘要：
通过水热法制备蒙脱土/Fe_(3)O_(4)/腐殖酸复合材料(MFH),探究pH值、MFH的投加量、吸附时间、U(Ⅵ)初始浓度及温度等因素对MFH吸附U(Ⅵ)的影响。结果表明:在所选实验条件范围内,MFH的投加量对其吸附U(Ⅵ)的影响最大;当U(Ⅵ)初始浓度为5 mg·L^(-1),pH值为6,MFH投加量为0.3 g·L^(-1),温度为30℃时,MFH对U(Ⅵ)去除在30 min后达到平衡,此时去除率达到97.7%;MFH对U(Ⅵ)的吸附符合准二级动力学模型和Langmuir模型;MFH对U(Ⅵ)的去除机理为络合作用和还原作用。再生实验表明,经5次吸附-解吸后,MFH复合材料对U(Ⅵ)的吸附率仍在90%以上,表明MFH对U(Ⅵ)的去除效果较好且具有高效重复利用性。
语种：
中文
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Synthesis of g-C3N4/TiO2 nanostructures for enhanced photocatalytic reduction of U(vi) in water
作者：
Liu, Yuelin;Wu, Shanshan;Liu, Jun;Xie, Shuibo* ;Liu, Yingjiu
期刊：
RSC Advances ,2021年11(8):4810-4817 ISSN：2046-2069
通讯作者：
Xie, Shuibo
作者机构：
[Liu, Yuelin] Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang 421001, Peoples R China.;[Liu, Yuelin] Hunan Univ Technol, Sch Civil Engn, Zhuzhou 412007, Peoples R China.;[Wu, Shanshan; Xie, Shuibo; Liu, Yingjiu] Univ South China, Hunan Prov Key Lab Pollut Control & Resources Reu, Hengyang 421001, Peoples R China.;[Liu, Jun] Hunan Univ Technol, Sch Life Sci & Chem, Hunan Key Lab Biomed Nanomat & Devices, Zhuzhou 412007, Peoples R China.;[Xie, Shuibo] Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.
通讯机构：
[Xie, Shuibo] U;Univ South China, Hunan Prov Key Lab Pollut Control & Resources Reu, Hengyang 421001, Peoples R China.;Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.
摘要：
Photocatalytic technology is a valid solution for the remediation of wastewater containing uranium. In this study, the synthesis of Z-scheme g-C3N4/TiO2 catalysts was made by a thermal synthetic approach for photocatalytic U(vi) reduction. The characterization results revealed the successful synthesis of g-C3N4/TiO2 nanostructures. The g-C3N4 surface was uniformly coated with TiO2 nanoparticles. The depletion of U(vi) in water evaluated the photocatalytic activity of g-C3N4/TiO2 under UV light irradiation. The photocatalytic tests showed that g-C3N4/TiO2 exhibited more effective photocatalytic activity than the raw materials (1.64 and 56.97 times higher than TiO2(P25) and g-C3N4, respectively). Besides, a pseudo-first-order model was followed by the experimental kinetic data for the photocatalytic process. Moreover, g-C3N4/TiO2 still presented high photocatalytic activity after four reacting cycles. Based on these experiment results, the improved photocatalytic activity could be attributed to the Z-scheme mechanism, which decreased the recombination of photo-produced electrons and holes. The synthesis of these g-C3N4/TiO2 nanomaterials provides a facile and inexpensive method for treating wastewater containing U(vi). This journal is © The Royal Society of Chemistry.
语种：
英文
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MNO_2 /FeOOH复合材料对水中U(Ⅵ)的去除及机理试验研究
作者：
谢水波;王越;胡忠清;王国华;刘迎九
期刊：
安全与环境学报 ,2021年21(01):373-382 ISSN：1009-6094
作者机构：
[王国华; 王越; 刘迎九; 胡忠清] 南华大学土木工程学院;南华大学污染控制与资源化技术湖南省重点实验室;[谢水波] 南华大学土木工程学院<&wdkj&>南华大学污染控制与资源化技术湖南省重点实验室
关键词：
环境工程学;二氧化锰;羟基氧化铁;铀;吸附
摘要：
采用化学沉积法制备了二氧化锰/羟基氧化铁（MnO2/FeOOH）复合材料,并将其用于吸附去除水中的放射性重金属铀。通过静态吸附试验,考察了Fe/Mn物质的量比、pH值、吸附时间和干扰离子等因素对MnO2/FeOOH吸附U（Ⅵ）效果的影响,利用扫描电镜-能谱分析（SEM-EDS）、X射线衍射（XRD）、拉曼光谱（Raman）、红外光谱（FT-IR）和X射线光电子能谱（XPS）对材料结构和形貌进行表征,并分析其吸附机理。结果表明,在投加量为150 mg/L、温度为30℃、U（Ⅵ）初始质量浓度为10 mg/L、pH值为5、Fe/Mn物质的量比为1/2及吸附时间为120 min的条件下,MnO2/FeOOH对U（Ⅵ）的去除率最大可达97.7%,且pH值对铀去除效果的影响最为明显。MnO2/FeOOH对U（Ⅵ）吸附动力学符合准二级动力学模型,吸附等温线均能符合Langmuir和Freundlich模型,且最大吸附容量达260.34 mg/g。干扰离子试验表明,SO42-、CO32-和Fe3+对MnO2/FeOOH吸附U （VI）几乎没有影响,而Ca2+和Cu2+具有明显的抑制作用,且抑制随浓度的增大而增强。FTIR和XPS分析表明MnO2/FeOOH对U（Ⅵ）的主要作用机制为表面羟基、Mn-O与铀的配位作用。因此,MnO2/FeOOH可作为一种潜在的铀吸附材料。
语种：
中文
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聚吡咯/石墨相氮化碳光催化材料的制备及其铀降解性能研究
作者：
俞坤;葛玉杰;谢水波;刘迎九;刘金香
期刊：
应用化工 ,2021年50(01):35-38 ISSN：1671-3206
作者机构：
[刘迎九; 刘金香; 俞坤; 葛玉杰] 南华大学土木工程学院;南华大学污染控制与资源化技术湖南省重点实验室;[谢水波] 南华大学土木工程学院<&wdkj&>南华大学污染控制与资源化技术湖南省重点实验室
关键词：
聚吡咯;石墨相氮化碳;光催化;铀
摘要：
为了提高g-C3N4的光催化性能,通过原位聚合法制备了PPy/g-C3N4复合材料。通过SEM、XRD、BET和FTIR等表征手段研究PPy/g-C3N4的微观形貌、化学组成以及光催化降解铀的性能。结果表明,PPy抑制了g-C3N4晶粒的生长,提高了g-C3N4的比表面积。在降解时间60 min,pH=5,U（VI）初始浓度5 mg/L,光催化剂投加量200 mg/L的条件下,g-C3N4和PPy/g-C3N4复合材料对U（VI）的降解率分别为83.11%和96.20%。重复使用3次后,PPy/g-C3N4对U（VI）的降解率仍达92.4%。
语种：
中文
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聚吡咯/石墨相氮化碳复合材料吸附铀（Ⅵ）的性能与机制
作者：
俞坤;刘金香;谢水波;刘迎九;葛玉杰
期刊：
材料导报 ,2020年(23):23020-23026 ISSN：1005-023X
作者机构：
1. 南华大学土木工程学院;2. 南华大学污染控制与资源化技术湖南省重点实验室
关键词：
石墨相氮化碳;聚吡咯;铀;吸附
摘要：
以石墨相氮化碳（g-C3N4）、聚吡咯（PPy）为原料,采用原位聚合法制备聚吡咯/石墨相氮化碳（PPy/g-C3N4）复合材料,探究PPy/g-C3N4对水中U（Ⅵ）的吸附性能。研究pH值、温度、PPy/g-C3N4投加量、反应时间、U（Ⅵ）初始浓度等影响因素对PPy/g-C3N4吸附U（Ⅵ）的影响。结果表明:在pH=5、U（Ⅵ）初始浓度为5 mg/L、PPy/g-C3N4的投加量为200 mg/L、吸附时间为20 min的条件下,PPy/g-C3N4对U（Ⅵ）的最大吸附率为93.22%。PPy/g-C3N4对U（Ⅵ）的吸附等温线符合Freundlich模型,吸附动力学符合准二级动力学。SEM-EDS、XRD分析表明,本工作成功制得了PPy/g-C3N4复合材料。XPS和FTIR结果说明,PPy/g-C3N4中的含碳、氮官能团和含氧官能团与U（Ⅵ）发生络合作用,从而显著提高了其吸附性能。
语种：
中文
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电动力联合可渗透反应墙修复铀污染土壤试验研究
作者：
周书葵;张建;刘迎九;李智东;肖江;...
期刊：
应用化工 ,2020年49(2):355-358 ISSN：1671-3206
作者机构：
南华大学 土木工程学院,湖南 衡阳 421001;[周书葵; 田林玉; 张建; 肖江; 何劲妮; 刘迎九; 焦赟仪; 李智东] 南华大学
关键词：
电动修复;可渗透反应墙;铀污染土壤
摘要：
以铀浓度为80 mg/kg的铀污染土壤作为研究对象,分别采用电动(EK)和电动-可渗透反应墙(EK-PRB)联合修复技术对铀污染土壤进行了修复对比试验,并重点考察了电流强度、pH、铀残余量和去除率等因素的变化,以及分别对两种方法修复效果的影响。结果表明,在初始pH为4.35,电压梯度1 V/cm的条件下,铀离子随着电渗流往阴极迁移效果明显。经过168 h的修复后,EK-PRB修复技术对铀的去除率最大,要比EK修复技术提高46.5%。研究表明,EK-PRB联合修复技术比单独EK修复技术有明显的优势,在修复铀污染土壤方面具有良好的发展应用前景。
语种：
中文
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Swarm System of Unmanned Sewage Treatment Vessel in Large Waters
作者：
Yuan, Bin;Hu, Juntong;Lai, Xiaobo;Lv, Yijin;Liu, Yingjiu;...
期刊：
IOP Conference Series: Earth and Environmental Science ,2020年508(1):012017 ISSN：1755-1307
通讯作者：
Rong, Lishan
作者机构：
[Lai, Xiaobo; Lv, Yijin; Hu, Juntong; Liu, Yingjiu; Rong, Lishan; Yuan, Bin] Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.
通讯机构：
[Rong, Lishan] U;Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.
会议名称：
6th International Conference on Energy Materials and Environment Engineering (ICEMEE)
会议时间：
APR 24-26, 2020
会议地点：
ELECTR NETWORK
会议主办单位：
[Yuan, Bin;Hu, Juntong;Lai, Xiaobo;Lv, Yijin;Liu, Yingjiu;Rong, Lishan] Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.
会议论文集名称：
IOP Conference Series-Earth and Environmental Science
关键词：
Antennas;Lake pollution;Lakes;Purification;Radio navigation;Sewage treatment;Water quality;Ecological environments;Fast Processing;Positioning system;Self-purification;Swarm systems;Water quality monitoring;Water quality monitoring systems;Working efficiency;Water treatment
摘要：
The Swarm System of unmanned sewage treatment vessel in large waters is mainly used to deal with water pollution in large waters. The purpose of the system is to provide assistance to large water areas such as Chaohu Lake whose self-purification capacity is insufficient to solve their own pollution or which have lost their self-purification capacity. The Swarm System is able to carry out water treatment and water quality monitoring to help lakes to restore the ecological environment of water body and self-purification capacity. This system adopts the working mode of local pump in treatment and discharge. The water quality monitoring system, which is combined with BeiDou positioning system and data transmission system, has the ability of presenting the water pollution situation in a three-dimensional way and stronger pertinence in sewage treatment. The mechanism of the system is similar to Unmanned Aerial Vehicle, which is considered as high working efficiency, fast processing speed, low cost and high intelligence. © Published under licence by IOP Publishing Ltd.
语种：
英文
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聚吡咯/石墨相氮化碳复合材料吸附铀(Ⅵ)的性能与机制
作者：
俞坤;刘金香;谢水波;刘迎九;葛玉杰
期刊：
材料导报 ,2020年34(23):23020-23026 ISSN：1005-023X
作者机构：
南华大学土木工程学院,衡阳421001;南华大学污染控制与资源化技术湖南省重点实验室,衡阳421001;[葛玉杰; 刘金香; 俞坤; 谢水波; 刘迎九] 南华大学
关键词：
石墨相氮化碳;聚吡咯;铀;吸附
摘要：
以石墨相氮化碳(g-C_3N_4)、聚吡咯(PPy)为原料,采用原位聚合法制备聚吡咯/石墨相氮化碳(PPy/g-C_3N_4)复合材料,探究PPy/g-C_3N_4对水中U(Ⅵ)的吸附性能。研究pH值、温度、PPy/g-C_3N_4投加量、反应时间、U(Ⅵ)初始浓度等影响因素对PPy/g-C_3N_4吸附U(Ⅵ)的影响。结果表明:在pH= 5、U(Ⅵ)初始浓度为5 mg/L、PPy/g-C_3N_4的投加量为200 mg/L、吸附时间为20 min的条件下,PPy/g-C_3N_4对U(Ⅵ)的最大吸附率为93.22%。PPy/g-C_3N_4对U(Ⅵ)的吸附等温线符合Freundlich模型,吸附动力学符合准二级动力学。SEM-EDS、XRD分析表明,本工作成功制得了PPy/g-C_3N_4复合材料。XPS和FTIR结果说明,PPy/g-C_3N_4中的含碳、氮官能团和含氧官能团与U(Ⅵ)发生络合作用,从而显著提高了其吸附性能。
语种：
中文
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Investigation of a modified metal-organic framework UiO-66 with nanoscale zero-valent iron for removal of uranium (VI) from aqueous solution
作者：
Yang, Fan;Xie, Shuibo* ;Wang, Guohua;Yu, Chuck Wah;Liu, Haiyan;...
期刊：
Environmental Science and Pollution Research ,2020年27(16):20246-20258 ISSN：0944-1344
通讯作者：
Xie, Shuibo
作者机构：
[Yang, Fan; Liu, Haiyan; Wang, Guohua; Yu, Chuck Wah] Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.;[Xie, Shuibo] Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang 421001, Peoples R China.;[Liu, Yingjiu] Univ South China, Hunan Prov Key Lab Pollut Control & Resources Reu, Hengyang 421001, Peoples R China.
通讯机构：
[Xie, Shuibo] U;Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang 421001, Peoples R China.
关键词：
Metal-organic frameworks;UiO-66;Nanoscale zero-valent iron;U(VI) adsorption;nZVI reduction;U(VI) removal
摘要：
A novel composite material (nZVI/UiO-66) of nanoscale zero-valent iron (nZVI) with a functionalized metal-organic framework was synthesized by this study via a coprecipitation method, which was used for the efficient removal of U(VI) in the aqueous solution. The nZVI/UiO-66 had an excellent removal capacity of 404.86mgg−1 with an initial U(VI) concentration of 80mgL−1, 313K and pH = 6. The transmission electron microscopy (TEM) revealed that nZVI particles were inhomogeneously distributed on the surface of UiO-66. The analysis by the X-ray diffraction (XRD) has further illustrated that the introduction of nZVI did not change the structure of UiO-66. The adsorption process closely followed the pseudo-second-order kinetic and the Freundlich isotherm model. The removal process of U(VI) by nZVI/UiO-66 was spontaneous and endothermic. Fourier transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) analyses have illustrated that the mechanism was mainly related to adsorption of U(VI) from UiO-66 and reduction of U(VI) by nZVI. The Zr-O bonds were shown to play a vital role in the uranium removal. nZVI/UiO-66 could be recycled. The uptake rate could be maintained at around 80% after 5cycles of use. Therefore, these results manifested that the nZVI/UiO-66 is a promising sorbent for the efficient and selective removal of U(VI) in radioactive wastewaters. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
语种：
英文
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3种固定剂联合修复铀尾矿污染土壤
作者：
周书葵;田林玉;荣丽杉;刘迎九;肖江;...
期刊：
精细化工 ,2020年37(10):2105-2111 ISSN：1003-5214
作者机构：
南华大学 土木工程学院,湖南 衡阳 421001;[周书葵; 田林玉; 李嘉丽; 肖江; 荣丽杉; 刘迎九] 南华大学
关键词：
纳米沸石;磷酸二氢钾;改性生物炭;铀尾矿库;化学固定;环境保护
摘要：
采用纳米沸石、磷酸二氢钾、改性生物炭联合对铀尾矿库中的核素铀进行化学固定,并利用毒性浸出实验(TCLP)和Tessier逐级化学提取法,研究了固定前后铀的浸出特性与形态变化。TCLP结果表明,添加不同固定剂培养30 d后,与对照组相比,土壤中铀的浸出量减少了42.13%~71.54%,且土壤pH与TCLP提取态铀含量存在显著的负相关关系。Tessier结果显示,施用不同固定剂后,土壤中可交换态和碳酸盐结合态铀质量分数分别降低7.38%~26.06%、1.43%~6.99%,而有机质结合态、铁锰氧化物结合态、残渣态铀比例分别增加2.56%~ 3.64%、2.71%~17.47%、4.07%~11.12%。在单一固定材料实验中,纳米沸石添加量为6%(以土壤质量计,下同)时稳定效果最佳,土壤可交换态铀比例降低15.68%。在复配材料固定实验中,以3种固定剂按质量比1∶1∶1,总添加量为6%时修复效果最好,土壤可交换态铀比例降低26.06%。由此可见,3种固定剂联合施用能有效降低土壤中铀的活性,为其他放射性污染土壤修复提供理论参考。
语种：
中文
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气载微塑料的赋存特征、迁移规律与毒性效应研究进展
作者：
周帅;李伟轩;唐振平;高媛媛;刘迎九
期刊：
中国环境科学 ,2020年40(11):5027-5037 ISSN：1000-6923
作者机构：
南华大学土木工程学院,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;南华大学核燃料循环地质理论与技术衡阳市重点实验室,湖南衡阳421001;[李伟轩; 周帅; 唐振平; 高媛媛; 刘迎九] 南华大学
关键词：
气载微塑料;赋存特征;迁移规律;毒性效应;风险评估;研究进展
摘要：
微塑料作为一种新兴环境污染物,可能会对全球生态圈(水、土壤和空气)和人类健康造成潜在危害.本文综述了气载微塑料的分析方法、赋存特征、迁移规律及其毒性效应与机制等最新研究进展.当前气载微塑料定量表征主要依赖于体视显微镜检,而其定性分析则主要借助傅里叶红外光谱和拉曼光谱技术.气载微塑料遍及全球各大城市、海洋、甚至偏远山区.HYSPLIT4和沉降计算后推气流轨迹分析揭示了气载微塑料的迁移规律.气载微塑料对人体健康风险的影响研究表明,人类(尤其是儿童)能够吸入高丰度微塑料.今后研究应注重开发出适用于气载微塑料的精准、高效和低成本的分析仪器与方法,强化气载微塑料定量数据规范化,并从细胞、组织、器官等层面深入揭示气载微塑料及其复合污染物的毒性效应与机制.
语种：
中文
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Enhanced removal of NH4+ in bioretention by sludge biochar
作者：
Li Nan* ;Duan ZhiYong;Liu YingJiu
期刊：
IOP Conference Series: Earth and Environmental Science ,2020年510(4):042022 ISSN：1755-1307
通讯作者：
Li Nan
作者机构：
[Liu YingJiu; Duan ZhiYong; Li Nan] Univ South China, Sch Civil Engn, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Li Nan] U;Univ South China, Sch Civil Engn, Hengyang 421001, Hunan, Peoples R China.
会议名称：
4th International Workshop on Renewable Energy and Development (IWRED)
会议时间：
APR 24-26, 2020
会议地点：
ELECTR NETWORK
会议主办单位：
[Li Nan;Duan ZhiYong;Liu YingJiu] Univ South China, Sch Civil Engn, Hengyang 421001, Hunan, Peoples R China.
会议论文集名称：
IOP Conference Series-Earth and Environmental Science
关键词：
Fillers;Adsorption effect;Bio chars;Bioretention;Nitrogen and phosphorus removal;Removal rate;Nitrogen removal
摘要：
Both bioretention and sludge biochar have better effects to the removal of nitrogen and phosphorus removal in water. Combining them coulid improve the effect of bioretention on NH4 +. After applying sludge biochar, the adsorption effect of filler on NH4 + was improved. When the sludge biochar was applied to the filler, on the top of the submerged area in the tank, the removal rate of NH4 + could reach 88.62%∼94.48%. © Published under licence by IOP Publishing Ltd.
语种：
英文
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Bio-oxidation of a high-sulfur refractory gold concentrate with a two-stage chemical-biological approach
作者：
Wang, Guohua;Liu, Xinxing;Wu, Yonghong;Zeng, Taotao;Li, Shiyou;...
期刊：
Hydrometallurgy ,2020年197:105421 ISSN：0304-386X
通讯作者：
Xie, Shuibo
作者机构：
[Xie, Shuibo; Liu, Yingjiu; Liu, Jinxiang; Zeng, Taotao; Li, Shiyou; Wang, Guohua] Univ South China, Hunan Prov Key Lab Pollut Control & Resources Reu, Hengyang 421001, Peoples R China.;[Liu, Xinxing; Wu, Yonghong] Cent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China.;[Liu, Xinxing; Wu, Yonghong] Cent South Univ, Key Lab Biohydromet, Minist Educ, Changsha 410083, Peoples R China.;[Xie, Shuibo] Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang 421001, Peoples R China.
通讯机构：
[Xie, Shuibo] U;Univ South China, Hunan Prov Key Lab Pollut Control & Resources Reu, Hengyang 421001, Peoples R China.
关键词：
Energy dispersive spectroscopy;Extraction;Gold;Particle size;Particle size analysis;Pyrites;Scanning electron microscopy;Sulfur;Sulfur compounds;X ray photoelectron spectroscopy;Biological approach;Biological oxidations;Chemical oxidation;Energy dispersive X ray spectroscopy;Extraction level;Gold concentrate;High temperature;Two stage approach;Oxidation
摘要：
A two-stage chemical-biological oxidation approach, which applied a high temperature chemical oxidation stage prior to the bio-oxidation stage, was employed to accelerate the bio-oxidation rate of Axi gold concentrate with pyrite as the main sulfide phase. The extraction levels of Fe and S were 67.0% and 72.9% in the traditional one-stage bio-oxidation approach, while the values were elevated respectively to 78.0% and 79.6% with the two-stage approach. Accordingly, the extraction rate of gold was increased from 83.6% to 90.3% when subjected to the two-stage approach. The intensification mechanism of the two-stage approach was carried out by using Scanning Electron Microscope-Energy Dispersive X-ray Spectroscopy (SEM- EDX), X-ray photoelectron spectroscopy (XPS) and particle size analysis. The results indicated that pyrite on the surface of the concentrate was partly oxidized and particle size of the concentrate diminished after the first stage (chemical oxidation), which would facilitate the subsequent bio-oxidation process. © 2020 Elsevier B.V.
语种：
英文
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Effects of arbuscular mycorrhizal fungi on the repair capacity of perennial ryegrass (Lolium perenne L.) in the uranium-containing soils
作者：
Rong, Lishan;Xia, Lin;Yuan, Bin;Lai, Xiaobo;Hu, Juntong;...
期刊：
IOP Conference Series: Earth and Environmental Science ,2020年508(1):012118 ISSN：1755-1307
通讯作者：
Liu, Yingjiu
作者机构：
[Lai, Xiaobo; Hu, Juntong; Liu, Yingjiu; Rong, Lishan; Xia, Lin; Yuan, Bin] Univ South China, Hunan Prov Key Lab Pollut Control & Resources Tec, Hengyang 421001, Peoples R China.
通讯机构：
[Liu, Yingjiu] U;Univ South China, Hunan Prov Key Lab Pollut Control & Resources Tec, Hengyang 421001, Peoples R China.
会议名称：
6th International Conference on Energy Materials and Environment Engineering (ICEMEE)
会议时间：
APR 24-26, 2020
会议地点：
ELECTR NETWORK
会议主办单位：
[Rong, Lishan;Xia, Lin;Yuan, Bin;Lai, Xiaobo;Hu, Juntong;Liu, Yingjiu] Univ South China, Hunan Prov Key Lab Pollut Control & Resources Tec, Hengyang 421001, Peoples R China.
会议论文集名称：
IOP Conference Series-Earth and Environmental Science
关键词：
Aldehydes;Fungi;Mixtures;Phosphatases;Pigments;Seed;Soils;Transmission electron microscopy;Uranium;Uranium compounds;Well testing;ALkaline phosphatase;Arbuscular mycorrhizal fungi;Coomassie Brilliant Blue;Photosynthetic pigments;Soil contamination;Subcellular distribution;Succinate dehydrogenase;Thiobarbituric acid;Uranium metallography
摘要：
This research inclines to study the ramification on arbuscular mycorrhizal fungi (AMF), including Glomusclaroideum (G. claroideum) and G. mosseae strains as well as the repair process of perennial ryegrass (Lolium perenne L.) in the uranium-containing soils. Three times at 120°C for an hour was required to disinfect the soil mixture. Spraying the uranium (U3O8) into the soil mixture and mixing until the ingredients were thoroughly blended, serving the purpose of obtaining the uranium-containing soil mixture with 5 mg/kg U3O8. A week later, AMF was inoculated into every flowerpot and chamber facility. Seeds of perennial ryegrass were cultivated with thirty seeds in each flowerpot or each indoor equipment in a fortnight's time. Perennial ryegrass plants tended to be harvested after sowing and meeting the conditions of 60 days. Three substances are detected by three different detection means(Photosynthetic pigments, soluble proteins, and malondialdehyde correspond to ethanol extraction method, Coomassie brilliant blue method, and thiobarbituric acid method, respectively). Additionally, testing included activities of alkaline phosphatase and succinate dehydrogenase as well. Moreover, Hitachi H-7650 transmission electron microscope performed the function of observing cellular and subcellular distributions of uranium in plant epidermal cells. Photosynthetic pigment standards of perennial ryegrass are subject to AMF, which not only has a tendency to enhance the soluble protein levels in perennial ryegrass, but also gains the possibility of holding up the uranium-induced improvement of malondialdehyde levels in perennial ryegrass. G. mosseaes is properly more efficacious than G. claroideum in the attenuation of uranium damages in cell structures of perennial ryegrass. Our results demonstrate that AMF is capable of developing the capacity of perennial ryegrass on repairing the uranium-related soil contamination. © Published under licence by IOP Publishing Ltd.
语种：
英文
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植酸改性黑曲霉菌对水中U（Ⅵ）的吸附试验研究
作者：
朱定国;谢水波;刘迎九;王越;司子彦;...
期刊：
科学技术与工程 ,2019年19(21):344-351 ISSN：1671-1815
作者机构：
南华大学土木工程学院,衡阳42100;南华大学污染控制与资源化技术湖南省高校重点实验室,衡阳42100;[朱定国; 司子彦; 朱奥琦; 王越; 谢水波; 刘迎九] 南华大学
关键词：
黑曲霉;植酸;吸附
摘要：
以黑曲霉和植酸为原料,制备了富含磷酸基团的黑曲霉改性材料。试验探讨了 U(Ⅵ)的初始浓度,pH值、植酸与黑曲霉用量比、投加量等因素对植酸改性黑曲霉吸附 U(Ⅵ)的影响。试验结果表明:在pH=5,投加量为0.3 g/L, U(Ⅵ)初始浓度为5 mg/L,30 ℃的条件下,植酸改性黑曲霉菌对 U(Ⅵ)的吸附量达到16.19 mg/g,吸附时间90 min后趋于平衡。研究植酸改性黑曲霉对 U(Ⅵ)的吸附行为规律,结果表明吸附等温线符合Langmuir等温模型,以单层吸附为主;动力学模型符合准二级动力学,吸附过程主要是化学吸附。扫描电镜(SEM-EDS)和红外光谱(FTIR)等手段分析植酸改性黑曲霉吸附 U(Ⅵ)的机理,结果表明植酸成功引入黑曲霉表面,主要反应官能团为OH、PO4^3-、CONH。
语种：
中文
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氧化石墨烯及其复合材料对水中放射性核素的吸附
作者：
刘红娟;吴仁杰;谢水波;刘迎九
期刊：
材料工程 ,2019年47(10):22-32 ISSN：1001-4381
通讯作者：
Xie, Shui-Bo(xiesbmr@263.net)
作者机构：
[刘红娟; 吴仁杰] Institute of Nuclear Science and Technology, University of South China, Hengyang;Hunan;421001, China;[谢水波] Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang;[刘迎九] Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang
通讯机构：
[Xie, S.-B.] K;Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, China
关键词：
氧化石墨烯;放射性核素;吸附;改性材料;废水
摘要：
在核能和核技术的快速发展过程及应用中产生了大量放射性废水,其对生态环境会造成潜在的污染,因此对放射性废水处理技术的研究对保护环境有着重要的意义。氧化石墨烯及其复合材料具有比表面积高、官能团丰富、吸附能力强、化学稳定性好等优点,在放射性废水处理领域受到广泛关注。本文综述了近年来有关氧化石墨烯及其复合材料对水中放射性核素吸附的研究现状及进展,介绍了氧化石墨烯及其复合材料对放射性核素的吸附容量、吸附等温模型、吸附热力学、影响因素和吸附机理。最后分析了氧化石墨烯及其复合材料处理放射性核素在辐射稳定性和高吸附选择性等方面面临的问题和挑战,探讨了推动该类材料今后实际放射性废水处理中工程应用的重点研究方向,如完善的产业体系和积极研发相匹配的成套水处理工艺及设备等。
语种：
中文
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信息化教学在《水处理微生物学》实验教学中的应用
作者：
王国华;曾涛涛;袁华山;黄仕元;刘迎九;...
期刊：
教育现代化 ,2019年(70):71-72+82 ISSN：2095-8420
作者机构：
南华大学土木工程学院
关键词：
信息化教学;水处理微生物学;实验教学;改革
摘要：
水处理微生物学实验是给排水科学与工程专业的重要基础课。信息化教学可以有效调动学生的学习积极性,帮助学生更直观的理解水处理微生物实验的原理及操作,培养学生的实践及创新能力,成为提高水处理微生物学实验教学质量的有效手段。本文结合专业培养目标,将信息化教学有效融入到实验教学中,将教学内容的抽象难懂化为直观形象,枯燥乏味化为生动有趣,一方面激发学生的学习兴趣,另一方面拓宽学生的知识视野,达到优化教学效果的目的。
语种：
中文
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Polyaniline/oxidation etching graphitic carbon nitride composites for U(VI) removal from aqueous solutions
作者：
Liu, Jinxiang;Chen, Zigeng;Yu, Kun;Liu, Yingjiu;Ge, Yujie;...
期刊：
Journal of Radioanalytical and Nuclear Chemistry ,2019年321(3):1005-1017 ISSN：0236-5731
通讯作者：
Xie, Shuibo
作者机构：
[Ge, Yujie; Xie, Shuibo; Chen, Zigeng; Liu, Yingjiu; Yu, Kun; Liu, Jinxiang] Univ South China, Hunan Prov Key Lab Pollut Control & Resources Tec, Hengyang 421001, Hunan, Peoples R China.;[Xie, Shuibo] Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Xie, Shuibo] U;Univ South China, Hunan Prov Key Lab Pollut Control & Resources Tec, Hengyang 421001, Hunan, Peoples R China.;Univ South China, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang 421001, Hunan, Peoples R China.
关键词：
adsorbent;carbon;graphitic carbon nitride;polyaniline;unclassified drug;uranium;adsorption;aqueous solution;Article;chemical parameters;chemical procedures;desorption;kinetics;oxidation;polymerization;synthesis;waste component removal
摘要：
Polyaniline/oxidation etching g-C3N4 composites (PANI/OCN) were synthesized through an oxidative polymerization method and applied to remove U(VI)from aqueous solution as an adsorbent. The PANI/OCN showed high maximum adsorption capacity (qm = 312.5mgg−1, T = 293K, pH = 5), which was higher than OCN and many other adsorbents,and extremely fast adsorption rate (in 10min). The adsorption process was fitted well to the pseudo-second-order kinetic equation and Langmuir model. Adsorption–desorption experiment revealed the good reusability of PANI/OCN. This study provides a potential composite with excellent performance for U(VI) removal. © 2019, Akadémiai Kiadó, Budapest, Hungary.
语种：
英文
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灭活与非灭活条件下植物乳杆菌去除U(VI)的机理
作者：
刘金香;蒲亚帅;谢水波;刘迎九;陈子庚;...
期刊：
中国环境科学 ,2019年39(7):2880-2888 ISSN：1000-6923
作者机构：
南华大学土木工程学院,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;南华大学土木工程学院,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;[陈子庚; 蒲亚帅; 刘金香; 李仕友; 谢水波; 刘迎九] 南华大学
关键词：
植物乳杆菌;生物吸附;矿化机理;生物还原
摘要：
在不同时间,pH值和生物量浓度条件下,进行了灭活与非灭活植物乳杆菌去除水中铀的对比试验,探讨了二者去除水中铀的机理,通过SEM-EDS、 FTIR、XPS及XRD分析了铀与菌体表面的微观作用机理以及菌体表面沉积物的特征.结果表明:植物乳杆菌经灭活后,其吸附铀的能力得到显著的提高,当U(VI)初始浓度为10mg/L、pH值为6.0、37℃条件下,120min内灭活菌体对U(VI)的去除率为94.7%,而活菌体的去除率为88.9%.灭活菌体具有更高的铀吸附容量,在生物量浓度为0.06~0.24mg/L,pH值(3.0~7.0)条件下,灭活菌体与活菌体的U(VI)累积容量比W均大于1. SEM-EDS、FTIR分析结果表明,活细胞和灭活细胞都可通过细胞表面的羟基、酰基及羧基等官能团吸附、配位络合U(VI). XRD分析表明,活菌体可生物磷酸矿化水中的U(VI).活菌体的XRD谱图在2θ(18.023,25.492,27.343,40.813°处)有4个明显的磷酸铀酰晶体峰,而灭活菌体的XRD谱图显示为非晶态.XPS结果表明,活菌体可生物还原U(VI).活菌体能谱图中U4f7/2和U4f5/2轨道出现了结合能为380.20eV和390.65eV的U(VI)分裂峰,而灭活菌体的能谱图中没有出现U(IV)的分裂峰.
语种：
中文
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植物乳杆菌吸附水中U(VI)的特性与机理研究
作者：
刘金香;蒲亚帅;谢水波;刘迎九;陈子庚;...
期刊：
水处理技术 ,2019年45(2):61-66 ISSN：1000-3770
作者机构：
南华大学土木工程学院 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;[陈子庚; 蒲亚帅; 刘金香; 李仕友; 谢水波; 刘迎九] 南华大学
关键词：
植物乳杆菌;吸附;机理
摘要：
以热灭活的植物乳杆菌为生物吸附剂,探讨了吸附U(VI)的影响,并采用扫描电镜-能谱、红外光谱等手段研究了U(VI)的吸附机理。结果表明,植物乳杆菌对U(VI)具有良好的吸附效果。在pH为6.0,温度30℃,灭活乳杆菌投加量为120 mg/L,初始U(VI)的质量浓度为10 mg/L时,植物乳杆菌对U(VI)的去除率可达94.28%,吸附平衡时间为4 h。吸附过程较好符合准2级动力学吸附模型和Freundlich模型。经过灭活的植物乳杆菌的菌体比表面积增加,能更好的吸附U(VI),配位络合是菌体吸附U(VI)的主要机理,参与吸附的官能团有细胞表面多糖与蛋白质羟基、蛋白质酰胺基、羧基与磷酸酯基等。此外菌体表面的静电作用也是吸附的方式之一。
语种：
中文
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