Facile fabrication of nanostructured cerium-manganese binary oxide for enhanced arsenite removal from water

doi:10.1016/j.cej.2017.11.062

	Facile fabrication of nanostructured cerium-manganese binary oxide for enhanced arsenite removal from water
	Chen, Jing 1; Wang, Jianyan 1; Zhang, Gaosheng2 ; Wu, Qiuyue 3; Wang, Dongtian 3; Zhang, Gaosheng(Guangzhou Univ, Key Lab Water Safety & Protect Pearl River Delta, Minist Educ, Guangzhou 510006, Guangdong, Peoples R China)
发表期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
	2018-02-15
卷号	334 页码:1518-1526
关键词	Ce-mn Binary Oxide Arsenite Oxidation Sorption Regeneration Mechanism
研究领域	Engineering, Environmental ; Engineering, Chemical
DOI	10.1016/j.cej.2017.11.062
产权排序	第1完成单位
作者部门	海岸带环境过程实验室
英文摘要	Arsenite [As(III)] is more toxic and more difficult to remove from water than arsenate [As(V)]. For enhanced As (III) removal from water, a new nanostructured Ce-Mn binary oxide with a Ce/Mn molar ratio of 3: 1 was fabricated via a facile one-step oxidation-coprecipitation method at ambient temperature. The synthetic Ce-Mn binary oxide is amorphous with a high surface area of 157m(2)/g. Cerium (Ce) and manganese (Mn) in this oxide exist mainly in the oxidation state of Ce(IV) and Mn(IV), respectively. It can effectively oxidize As(III) to As(V) and efficently adsorb the formed As(V). Moreover, this sorbent exhibits an obviously synergistic effect. The maximal sorption capacity of As(III) is 97.7 mg/g, which is competitive with most of reported sorbents. The As (III) uptake is rapid and slightly affected by tested solution pH, ionic strength, dissolved organic matters and coexisting anions except for phosphate, indicating the high selectivity toward arsenic. The arsenic-loaded Ce-Mn binary oxide could be readily regenerated and repeatedly used. Both Mn and Ce oxides in sorbent are responsible for As(III) oxidation, and the Ce oxide is dominant for adsorbing formed As(V) during As(III) removal. The oxide could be used as an attractive sorbent for As(III) removal from contaminated water, because of its facile and low-cost synthesis process, good As(III) sorption performance, and reusability.
文章类型	Article
资助机构	General Program of National Natural Science Foundation of China(51478457) ; Opening Project of the Jiangsu Key Laboratory for Environment Functional Materials(SJHG1312) ; Science and Technology Project of Yantai, China(2014ZH087)
收录类别	SCI
语种	英语
关键词[WOS]	ZEROVALENT IRON ; CO OXIDATION ; MIXED OXIDES ; ADSORPTION ; ARSENATE ; SORPTION ; FE ; ADSORBENT ; CATALYSTS ; AS(III)
研究领域[WOS]	Engineering
WOS记录号	WOS:000418533400151
引用统计	被引频次：98[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.cn/handle/133337/23552
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_污染过程与控制实验室
通讯作者	Zhang, Gaosheng; Zhang, Gaosheng(Guangzhou Univ, Key Lab Water Safety & Protect Pearl River Delta, Minist Educ, Guangzhou 510006, Guangdong, Peoples R China)
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 2.Guangzhou Univ, Key Lab Water Safety & Protect Pearl River Delta, Minist Educ, Guangzhou 510006, Guangdong, Peoples R China 3.Suzhou Univ Sci & Technol, Environm Sci & Engn Coll, Jiangsu Key Lab Environm Funct Mat, Suzhou 215009, Peoples R China
推荐引用方式 GB/T 7714	Chen, Jing,Wang, Jianyan,Zhang, Gaosheng,et al. Facile fabrication of nanostructured cerium-manganese binary oxide for enhanced arsenite removal from water[J]. CHEMICAL ENGINEERING JOURNAL,2018,334:1518-1526.
APA	Chen, Jing,Wang, Jianyan,Zhang, Gaosheng,Wu, Qiuyue,Wang, Dongtian,&Zhang, Gaosheng.(2018).Facile fabrication of nanostructured cerium-manganese binary oxide for enhanced arsenite removal from water.CHEMICAL ENGINEERING JOURNAL,334,1518-1526.
MLA	Chen, Jing,et al."Facile fabrication of nanostructured cerium-manganese binary oxide for enhanced arsenite removal from water".CHEMICAL ENGINEERING JOURNAL 334(2018):1518-1526.