伽马辐射诱导制备壳聚糖-丙烯酸-1-乙烯基-2-乙烯基吡咯烷酮/多壁碳纳米管复合材料去除 Eu、Co 和 Cs 放射性核素。
Gamma radiation-induced preparation of chitosan-acrylic acid-1-vinyl-2-vinylpyrrolidone/multiwalled carbon nanotubes composite for removal of Eu, Co and Cs radionuclides.
机构信息
Nuclear Chemistry Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, P.O. Box 13759, Cairo, Egypt.
Nuclear Chemistry Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, P.O. Box 13759, Cairo, Egypt.
出版信息
Int J Biol Macromol. 2020 Dec 1;164:2258-2266. doi: 10.1016/j.ijbiomac.2020.08.120. Epub 2020 Aug 15.
Removal behaviors of Eu, Co, and Cs radionuclides onto Chitosan-acrylic acid-1-vinyl-2-vinylpyrrolidone/oxidized multi-walled carbon nanotubes (CTS-AA-VP/o-MWCNTs) composite has been investigated by batch adsorption technique. CTS-AA-VP/o-MWCNTs composite has been synthesized by copolymerization of acrylic acid (AA) and 1-vinyl-2-vinylpyrrolidone (VP) onto the surface of chitosan/oxidized multi-walled carbon nanotubes (CTS/o-MWCNTs) using gamma radiation. SEM, TGA, and FTIR were applied to characterize the morphology, thermal stability, and structure of the composite. The composite shows high removal capacity of 321.77, 369.91, and 456.46 mg/g towards Eu, Co, and Cs radionuclides, respectively.
采用批式吸附技术研究了壳聚糖-丙烯酸-1-乙烯基-2-乙烯基吡咯烷酮/氧化多壁碳纳米管（CTS-AA-VP/o-MWCNTs）复合材料对 Eu、Co 和 Cs 放射性核素的去除行为。CTS-AA-VP/o-MWCNTs 复合材料是通过γ辐射将丙烯酸（AA）和 1-乙烯基-2-乙烯基吡咯烷酮（VP）共聚到壳聚糖/氧化多壁碳纳米管（CTS/o-MWCNTs）表面合成的。采用 SEM、TGA 和 FTIR 对复合材料的形貌、热稳定性和结构进行了表征。该复合材料对 Eu、Co 和 Cs 放射性核素的去除率分别高达 321.77、369.91 和 456.46mg/g。
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