文献类型：期刊文献

英文题名：Simultaneous Removal of Multiple Heavy Metal Ions from River Water Using Ultrafine Mesoporous Magnetite Nanoparticles

作者：Fato, Fato Patrice[1];Li, Da-Wei[1];Zhao, Li-Jun[1];Qiu, Kaipei[1];Long, Yi-Tao[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Nanjing Univ, Sch Chem & Chem Engn, State Key Lab Analyt Chem Life Sci, 163 Xianlin Ave, Nanjing 210039, Jiangsu, Peoples R China

年份：2019

卷号：4

期号：4

起止页码：7543

外文期刊名：ACS OMEGA

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000466552500157)】；

基金：This work was supported by the National Natural Science Foundation of China (Grant No. 21834001), Innovation Program of Shanghai Municipal Education Commission (Grant No. 2017-01-07-00-02-E00023), and Shanghai Sailing Program (Grant No. 19YF1410400). T.P.F. was supported by the China Scholarship Council for the Ph.D. program in ECUST (CSC No. 2015DFH452).

语种：英文

摘要：The exploration of simultaneous removal of coexisting or multiple pollutants from water by the means of nanomaterials paves a new avenue that is free from secondary pollution and inexpensive. In the aquatic environment, river water contains a mixture of ions, which can influence the adsorption process. In this respect, removing heavy metal ions becomes a true challenge. Here, four heavy metal ions, namely, Pb2+, Cd2+, Cu2+, and Ni2+, have been successfully removed simultaneously from river water using ultrafine mesoporous magnetite (Fe3O4) nanoparticles (UFMNPs) based on the affinity of these metal ions toward the UFMNP surfaces as well as their unique mesoporous structure, promoting the easy adsorption. The individual removal efficiencies of Pb2+, Cu2+, and Ni2+ ions from river water were 98, 87, 90, and 78%, respectively, whereas the removal efficiencies of the mixed Pb2+, Cd2+, Cu2+, and Ni2+ ions were 86, 80, 84, and 54%, respectively, in the same river water. Thus, the data clearly indicate the complex removal of heavy metal ions in multi-ion systems. This study has demonstrated the huge potential of UFMNPs to be effective for their use in wastewater treatment, especially to simultaneously remove multiple heavy metal ions from aqueous media.