文献类型：期刊文献

英文题名：Amidoxime-Functionalized Hollow Carbon Spheres for Efficient Removal of Uranium from Wastewater

作者：Liu, Xia[1];Wu, Jin[1];Zhang, Shouwei[1];Ding, Congcong[2];Sheng, Guodong[3];Alsaedi, Ahmed[4];Hayat, Tasawar[4];Li, Jiaxing[1,4];Song, Yuntao[1]

机构：[1]Chinese Acad Sci, Inst Plasma Phys, POB 1126, Hefei 230031, Anhui, Peoples R China;[2]Southwest Univ Sci & Technol, Fundamental Sci Nucl Wastes & Environm Safety Lab, Mianyang 621010, Sichuan, Peoples R China;[3]Shaoxing Univ, Coll Chem & Chem Engn, Huancheng West Rd 508, Shaoxing 312000, Zhejiang, Peoples R China;[4]King Abdulaziz Univ, Fac Sci, Jeddah 21589, Saudi Arabia

年份：2019

卷号：7

期号：12

起止页码：10800

外文期刊名：ACS SUSTAINABLE CHEMISTRY & ENGINEERING

收录：SCI-EXPANDED(收录号：WOS:000472240900069)、、EI(收录号：20192507073441)、Scopus(收录号：2-s2.0-85073625041)、WOS

基金：This work was financially supported by National Natural Science Foundation of China (21876178, 21677146 and 21707043).

语种：英文

外文关键词：Uranium; Amidoxime-functionalized; Hollow carbon; Removal

外文摘要：Hydrothermal carbon has received increasing attention because of its simple and mild synthesis conditions. In this paper, amidoxime-functionalized hollow carbon spheres (C-HCN-AO) were synthesized via amidation cyano-rich hydrothermal carbon (C-HCN) treatment with hydroxylamine hydrochloride. NaOH solution was used to etch SiO2 to achieve hollow structure. The maximum sorption capacity of hollow C-HCN-AO sphere toward U(VI) was 355.6 mg/g at pH 5.0 and 298 K. The sorption of U(VI) by hollow C-HCN-AO sphere was predominantly controlled by inner-sphere complexation from the study of the sorption mechanism. The regeneration study displayed good reusability of hollow C-HCN-AO sphere. This work can give a guide for the design and fabrication of hollow structures in the application of pollution treatments.