第一作者：Shucheng Ren

通讯作者：Dun Niu, Hong-bin Sun*, Qionglin Liang

合写作者：Yongjian Ai, Xinyue Zhang, Man Ruan, Ze-nan Hu, Lei Liu, Jifan Li, Yao Wang, JiaXing Liang, Hongna Jia, YangYang Liu

发表刊物：Acs Sustainable Chemistry & Engineering

期号：1

卷号：8

影响因子：7.1

DOI码：10.1021/acssuschemeng.9b05802

所属单位：Department of Chemistry, Northeastern University

教研室：物理化学

刊物所在地：UNITED STATES

摘要：In recent years, the removal of antimony(III) (Sb(III)) contaminant from water has caused widespread concern. Herein, two adsorbents have been successfully developed to remove Sb(III) from water and systemically characterized. One is the composite of magnetic mesoporous carbon nanospheres (Fe3O4@CNs) with Fe2O3 particles that is represented as Fe3O4@Fe2O3@CNs, and the other one is mesoporous carbon nanosphere-accommodated Fe2O3 particles noted as Fe2O3@CNs. Both adsorbents have the advantages of magnetic separation and high Sb(III) removal capacity. The adsorption properties of Sb(III) on both adsorbents were studied by the experiments of adsorption isotherms and kinetics. The results show that the adsorption behaviors on both adsorbents follow the Langmuir isotherm model and pseudo-second-order kinetic model. The maximum Sb(III) adsorption capacity of Fe3O4@Fe2O3@CNs and Fe2O3@CNs is 234.28 and 102.84 mg/g, respectively. The high capacity can be attributed to the adsorption-active Fe2O3 particles that are well confined inside the carbon matrix. Furthermore, it is also of great research value to turn the adsorbed Sb(III) into resources utilization. We developed the subsequent treatment of the waste adsorbents, which were manufactured to magnetically recoverable catalysts for the esterification and 1,2,3-triazoles synthesis, respectively, and both of them exhibited good catalytic activity. It provides a promising candidate for avoiding the secondary pollution of Sb(III).

关键字：adsorption of antimony, iron oxide, carbon nanospheres, magnetic catalyst

论文编号：WOS:000507429100053

学科门类：理学

一级学科：化学

页面范围：469-477

ISSN号：2168-0485

是否译文：否