文献类型：期刊文献

英文题名：Synthesis of selective biodegradable amidoxime chitosan for absorption of Th(IV) and U(VI) ions in solution

作者：Ma, Jiaju[1,2];Lei, Zhiwei[1,2];Zhou, Yun[1,2];Dong, Tianhao[1,2];Hu, Peizhuo[1,2];Duan, Guojian[3];Liu, Tonghuan[1,2]

第一作者：Ma, Jiaju

通信作者：Liu, TH[1];Liu, TH[2]

机构：[1]Lanzhou Univ, Sch Nucl Sci & Technol, Radiochem Lab, Lanzhou 730000, Peoples R China;[2]Lanzhou Univ, Sch Nucl Sci & Technol, Key Lab Special Funct Mat & Struct Design Din Ist, Lanzhou 730000, Peoples R China;[3]Gansu Univ Chinese Med, Lanzhou 730000, Peoples R China

第一机构：Lanzhou Univ, Sch Nucl Sci & Technol, Radiochem Lab, Lanzhou 730000, Peoples R China

通信机构：[1]corresponding author), Lanzhou Univ, Sch Nucl Sci & Technol, Radiochem Lab, Lanzhou 730000, Peoples R China;[2]corresponding author), Lanzhou Univ, Sch Nucl Sci & Technol, Key Lab Special Funct Mat & Struct Design Din Ist, Lanzhou 730000, Peoples R China.

年份：2021

卷号：109

期号：5

起止页码：343

外文期刊名：RADIOCHIMICA ACTA

收录：;Scopus(收录号：2-s2.0-85100880791);WOS:【SCI-EXPANDED(收录号:WOS:000646029500002)】；

基金：This researchwas funded by the National Nature Science Foundation of China (No. 21762001 and 22076071), Fundamental Research Funds for the Central Universities (lzujbky-2020-kb06) and 2015 Key scientific research bidding projects of Gansu University of Chinese Medicine (2305137401).

语种：英文

外文关键词：adsorption; amidoximation; biodegrade; chitosan; Th(IV); U(VI)

摘要：Radionuclide extraction from wastewater is a long-term process, in which the study on the reuse and decomposition of adsorbents provides the ability to complete the post-treatment after adsorption. Herein, A novel biodegradable amidoxime chitosan has been synthesized through one-step without crosslinking agent and characterized by FT-IR, SEM, XPS, TGA and element analysis. The batch adsorption experiments of U(VI) and Th(IV) on AO-CTS adsorbent were studied and maximum adsorption of U(VI) and Th(IV) were 97 and 56 mg/g, respectively. The U(VI) and Th(IV) can be effectively desorbed from the AO-CTS materials at low acidity, The AO-CTS can be reused 6 times without reducing absorbency for U(VI) and Th(IV). When finish the adsorption process, the AO-CTS can be degraded by lysozyme at room temperature, there were no toxic or harmful substances are produced.