Controllable assembly of CeO2 micro/nanospheres with adjustable size and their application in Cr(VI) adsorption

被引：16

作者：

Sun, Jiajia ^{[1
]}

Wang, Chengrui ^{[1
,2
]}

Zeng, Li ^{[1
]}

Xu, Pengfei ^{[1
]}

Yang, Xiaodan ^{[1
]}

Chen, Jun ^{[1
]}

Xing, Xianran ^{[1
]}

Jin, Quan ^{[2
]}

Yu, Ranbo ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Dept Phys Chem, Beijing 100083, Peoples R China

[2] Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2016年 / 75卷

基金：

中国国家自然科学基金;

关键词：

Nanostructures; Solvothermal; Oxides; Inorganic compounds; Chemical synthesis; CARBON NANOTUBES; OXIDE NANOSTRUCTURES; WATER; CERIA; NANOPARTICLES; REMOVAL; EFFICIENCY; SURFACE;

D O I：

10.1016/j.materresbull.2015.11.035

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

CeO2 micro/nanospheres with perfect spherical morphology, large specific surface area, high porosity, high stability and adjustable diameter were hydrothermally synthesized from a simple system, and the stirring-time before hydrothermal process was found to be the key factor for the final particle size control. The CeO2 spheres with diameters from similar to 800 nm to similar to 50 nm could be harvested by controllable synthesis. And the highest specific surface area of these CeO2 spheres could achieve 182 m(2)g(-1). Moreover, CeO2 spheres with higher specific surface areas (182 m(2) g(-1) and 117 m(2) g(-1)) showed excellent performance in removal of heavy metal ion Cr(VI) from the aqueous solution. The Cr(VI) removal efficiencies could reach up to 94%. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：110 / 114

页数：5

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