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

Sun, Jiajia and Wang, Chengrui and Zeng, Li and Xu, Pengfei and Yang, Xiaodan and Chen, Jun and Xing, Xianran and Jin, Quan and Yu, Ranbo (2016) Controllable assembly of CeO2 micro/nanospheres with adjustable size and their application in Cr(VI) adsorption. Materials Research Bulletin, 75. pp. 110-114. ISSN 0025-5408

Abstract

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 ∼800 nm to ∼50 nm could be harvested by controllable synthesis. And the highest specific surface area of these CeO2 spheres could achieve 182 m2 g-1. Moreover, CeO2 spheres with higher specific surface areas (182 m2 g-1 and 117 m2 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%.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 14 Jun 2017 22:51
Last Modified: 14 Jun 2017 22:51
Uncontrolled Keywords: Chemical synthesis; Inorganic compounds; Nanostructures; Oxides; Solvothermal; Controllable synthesis; Cr adsorptions; Hydrothermal process; Hydrothermally synthesized; Large specific surface areas; Particle size control; Solvothermal; Spherical morphologies; Metallurgy and Metallography; Metallurgy; Nanotechnology; Chemical Reactions; Chemical Products Generally; Inorganic Compounds; Solid State Physics;
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091299 Materials Engineering not elsewhere classified
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1016/j.materresbull.2015.11.035
URI: http://eprints.usq.edu.au/id/eprint/31934

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