Synthesis of Cu/Cu2O hydrides for enhanced removal of iodide from water

doi:10.1016/j.jhazmat.2016.12.065

CORC > 北京大学 > 化学与分子工程学院

	Synthesis of Cu/Cu2O hydrides for enhanced removal of iodide from water
	Mao, Ping ; Qi, Liye ; Liu, Xiaodong ; Liu, Ying ; Jiao, Yan ; Chen, Shouwen ; Yang, Yi
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2017
关键词	Cu/Cu2O Hydrothermal route Radioactive iodide Chemical adsorption Removal capacity LAYERED DOUBLE HYDROXIDES AQUEOUS-SOLUTIONS PHOTOCATALYTIC ACTIVITY RADIOACTIVE IODIDE COPPER CHINA SORPTION CU2O NANOPARTICLES MICROCRYSTALS
DOI	10.1016/j.jhazmat.2016.12.065
英文摘要	In order to improve the removal capacity of Cu2O for I- anions from water, Cu/Cu2O hybrids have been synthesized through a facile hydrothermal route, characterized by using SEM, XRD, XPS, and applied to remove I- anions under different experimental environments. The results demonstrate that the Cu content and morphology of samples can be tuned by the adding amount of ammonia. Meanwhile, the possible crystalline mechanism, Cu2O formed firstly and then metallic CU generated, was presented. With the increasing of Cu doped amount, the removal capacity of Cu/Cu2O hybrids increased significantly from 0.02 mmol g(-1) to 0.18 mmol g(-1). Furthermore, a reaction mechanism of l(-) anions and Cu2O, which generated from the disproportionation reaction of metallic Cu and CuO, has been proposed according to the characterization analyses of the composites before and after adsorption, explaining the highly efficient removal of I- anions. In addition, Cu/Cu2O hybrids showed excellent selectivity for I- anions in the presence of large concentrations of competitive anions such as so(4)(2) -and NO3- and could work in an acidic and neutral environment. This study is hopefully to prompt Cu2O to grow up to be a new and highly efficient adsorbent for the removal of iodide from solutions. (C) 2016 Elsevier B.V. All rights reserved.; National Natural Science Fundation of China [11205089]; Fundamental Research Funds for the Central Universities of China [30915011309]; Industry Academia-Research Joint Innovation Fund of Jiangsu Province [BY2016004-02]; Jiangsu Engineering Technology Research Center of Environmental Cleaning Materials [KFK1504]; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD); SCI(E); ARTICLE; 21-28; 328
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/473995]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Mao, Ping,Qi, Liye,Liu, Xiaodong,et al. Synthesis of Cu/Cu2O hydrides for enhanced removal of iodide from water[J]. JOURNAL OF HAZARDOUS MATERIALS,2017.
APA	Mao, Ping.,Qi, Liye.,Liu, Xiaodong.,Liu, Ying.,Jiao, Yan.,...&Yang, Yi.(2017).Synthesis of Cu/Cu2O hydrides for enhanced removal of iodide from water.JOURNAL OF HAZARDOUS MATERIALS.
MLA	Mao, Ping,et al."Synthesis of Cu/Cu2O hydrides for enhanced removal of iodide from water".JOURNAL OF HAZARDOUS MATERIALS (2017).