Preparation of alpha-Fe2O3 hollow spheres, nanotubes, nanoplates and nanorings as highly efficient Cr(VI) adsorbents

ISL OpenIR > 青海盐湖研究所知识仓储

	Preparation of alpha-Fe2O3 hollow spheres, nanotubes, nanoplates and nanorings as highly efficient Cr(VI) adsorbents
	Liu, Zhong1 ; Yu, Ruitao 2; Dong, Yaping1 ; Li, Wu1 ; Zhou, Wuzong 3
	2016
发表期刊	RSC ADVANCES
卷号	6 期号:86 页码:82854-82861
摘要	alpha-Fe2O3 nanoparticles with different morphologies, such as hollow spheres, nanotubes with a limited amount of the {0001} plane exposed, and nanoplates and nanorings with the {0001} plane predominantly exposed, have been synthesised by using NaH2PO4 and urea in a facile hydrothermal method. The mechanism of the morphology evolution from hollow sphere to nanoring has been investigated. It is proposed that the polymerisation of Fe3+/H2PO4- plays an important role in the formation of these morphologies. The adsorption of Cr(VI) from aqueous solution onto these alpha-Fe2O3 nanoparticles showed that the alpha-Fe2O3 with nanoring morphology has the highest removal efficiency, and the adsorption capacity reached 16.9 mg g(-1). These results indicate that the adsorption mechanism of Cr(VI) onto hematite nanoparticles is a chemisorption process through doubly and triply coordinated hydroxyl groups on the outer surface of alpha-Fe2O3.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/6363
专题	青海盐湖研究所知识仓储盐湖资源综合利用工程技术中心盐湖资源与化学实验室
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China 2.Chinese Acad Sci, Northwest Plateau Biol Inst, Xining 810008, Peoples R China 3.Univ St Andrews, Sch Chem, EaStChem, St Andrews KY16 9ST, Fife, Scotland
推荐引用方式 GB/T 7714	Liu, Zhong,Yu, Ruitao,Dong, Yaping,et al. Preparation of alpha-Fe2O3 hollow spheres, nanotubes, nanoplates and nanorings as highly efficient Cr(VI) adsorbents[J]. RSC ADVANCES,2016,6(86):82854-82861.
APA	Liu, Zhong,Yu, Ruitao,Dong, Yaping,Li, Wu,&Zhou, Wuzong.(2016).Preparation of alpha-Fe2O3 hollow spheres, nanotubes, nanoplates and nanorings as highly efficient Cr(VI) adsorbents.RSC ADVANCES,6(86),82854-82861.
MLA	Liu, Zhong,et al."Preparation of alpha-Fe2O3 hollow spheres, nanotubes, nanoplates and nanorings as highly efficient Cr(VI) adsorbents".RSC ADVANCES 6.86(2016):82854-82861.