Zhang, Gaosheng1
; Liu, Ye1; Wang, Jianyan2; Li, Huosheng1发表期刊JOURNAL OF MOLECULAR LIQUIDS
ISSN0167-7322
2020-07-01
卷号309页码:8
关键词Fe-Cu-Mn trimetal oxideArseniteSorptionOxidationRemoval
DOI10.1016/j.molliq.2020.112993
通讯作者Zhang, Gaosheng(gszhang@gzhu.edu.cn)
英文摘要The removal of arsenite (As(III)] has attracted increasing attentions because it is higher toxic and more difficult to be removed from water than arsenate [As(V)]. For efficient As(III) uptake, a nanostructured iron-coppermanganese trimetal oxide (ICM) was therefore synthesized using a simultaneous oxidation and co-precipitation approach at room temperature. The as-prepared ICM exhibits multifunctional properties, which can not only oxidize effectively As(III) but also sorb the produced As(V). The maximal sorption capacity of As (III) reaches up to 131 mg/g under neutral conditions, which outperforms the majority of adsorbents reported in the literature. The As(III) sorption drops gradually as solution pH increases. However, it is not significantly influenced by ionic strength and present anions except for PO43-, implying a relatively high selectivity. The active sorption sites of spent KM can be easily restored through NaOH solution treatment. The removal of As(III) is a complicated process involving in both oxidation and adsorption, in which inner-sphere surface complexes are formed. The oxidation of As(III) to As(V) is mainly ascribed to the Mn oxide content in composite, whereas the adsorption of formed As(V) is predominately attributed to the Fe oxide and Cu oxide. The ICM might act as a promising alternative to remove arsenic from groundwater and wastewater, due to its good performance, low cost, facile synthesis and high reusability. (C) 2020 Elsevier B.V. All rights reserved.
资助机构National Natural Science Foundation of China
收录类别SCI
语种英语
关键词[WOS]BINARY OXIDE; ARSENITE REMOVAL; AS(III) REMOVAL; ADSORPTION; ADSORBENT; ARSENATE; OXIDATION; BEHAVIOR; AS(V); PERFORMANCE
研究领域[WOS]Chemistry; Physics
WOS记录号WOS:000544211600017
引用统计被引频次：5[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/28664
专题中科院海岸带环境过程与生态修复重点实验室
中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
通讯作者Zhang, Gaosheng作者单位1.Guangzhou Univ, Inst Environm Res Greater Bay Area, Key Lab Water Qual & Conservat Pearl River Delta, Minist Educ, Guangzhou 510006, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
推荐引用方式
GB/T 7714Zhang, Gaosheng,Liu, Ye,Wang, Jianyan,et al. Efficient arsenic(III) removal from aqueous solution by a novel nanostructured iron-copper-manganese trimetal oxide[J]. JOURNAL OF MOLECULAR LIQUIDS,2020,309:8.
APAZhang, Gaosheng,Liu, Ye,Wang, Jianyan,&Li, Huosheng.(2020).Efficient arsenic(III) removal from aqueous solution by a novel nanostructured iron-copper-manganese trimetal oxide.JOURNAL OF MOLECULAR LIQUIDS,309,8.
MLAZhang, Gaosheng,et al."Efficient arsenic(III) removal from aqueous solution by a novel nanostructured iron-copper-manganese trimetal oxide".JOURNAL OF MOLECULAR LIQUIDS 309(2020):8.
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