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三元单体可控接枝聚氯乙烯纤维吸附剂的吸铀性能 被引量:5
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作者 刘德建 匙芳廷 +6 位作者 梁丹 吴昊岩 苟涵 阴金玉 文君 熊洁 胡胜 《高分子材料科学与工程》 EI CAS CSCD 北大核心 2019年第1期89-95,共7页
以聚氯乙烯(PVC)为基材,利用电子转移活化再生原子转移自由基聚合法(ARGET-ATRP)在PVC上引入丙烯腈(AN)、甲基丙烯酸甲酯(MMA)和二乙烯基苯(DVB),合成了具有高强度、高接枝率(1052%)的PVC-AO-MMA-DVB三元共聚吸附剂。并探究了PVC-AO-MMA... 以聚氯乙烯(PVC)为基材,利用电子转移活化再生原子转移自由基聚合法(ARGET-ATRP)在PVC上引入丙烯腈(AN)、甲基丙烯酸甲酯(MMA)和二乙烯基苯(DVB),合成了具有高强度、高接枝率(1052%)的PVC-AO-MMA-DVB三元共聚吸附剂。并探究了PVC-AO-MMA-DVB三元共聚吸附剂在不同固液比、不同p H、不同温度等实验条件下对铀酰离子U(Ⅵ)的吸附性能。结果表明,在固液比为1/2时,吸附量达到最高;偕胺肟吸附剂吸附铀酰离子的最佳p H范围为5. 0~5. 5;由动力学分析,PVC-AO-MMA-DVB三元共聚吸附剂吸附铀酰离子过程伴随着物理吸附和化学吸附,化学吸附占优。 展开更多
关键词 电子转移活化再生原子转移自由基聚合 接枝率 偕胺肟 铀酰
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Synthesis of novel nanomaterials and their application in efficient removal of radionuclides 被引量:20
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作者 Xiangxue Wang Long Chen +15 位作者 Lin Wang Qiaohui Fan Duoqiang Pan Jiaxing Li fangting chi Yi Xie Shujun Yu Chengliang Xiao Feng Luo Jun Wang Xiaolin Wang Changlun Chen Wangsuo Wu Weiqun Shi Shuao Wang Xiangke Wang 《Science China Chemistry》 SCIE EI CAS CSCD 2019年第8期933-967,共35页
With the development of nuclear energy, large amounts of radionuclides are inevitably released into the natural environment. It is necessary to eliminate radionuclides from wastewater for the protection of environment... With the development of nuclear energy, large amounts of radionuclides are inevitably released into the natural environment. It is necessary to eliminate radionuclides from wastewater for the protection of environment. Nanomaterials have been considered as the potential candidates for the effective and selective removal of radionuclides from aqueous solutions under complicated conditions because of their high specific surface area, large amounts of binding sites, abundant functional groups, pore-size controllable and easily surface modification. This review mainly summarized the recent studies for the synthesis, fabrication and surface modification of novel nanomaterials and their applications in the efficient elimination and solidification of radionuclides,and discussed the interaction mechanisms from batch experiments, spectroscopy analysis and theoretical calculations. The sorption capacities with other materials, advantages and disadvantages of different nanomaterials are compared, and at last the perspective of the novel nanomaterials is summarized. 展开更多
关键词 NANOMATERIALS radionuclides REMOVAL PRECONCENTRATION INTERACTION MECHANISM
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