Cu(I)-doped Fe3O4 nanoparticles/porous C composite for enhanced H2O2 oxidation of carbamazepine

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Cu(I)-doped Fe3O4 nanoparticles/porous C composite for enhanced H2O2 oxidation of carbamazepine
	Yang, Xiaofang ; He, Jie ; Yang, Qinxue ; Jiao, Ruyuan ; Liao, Guiying ; Wang, Dongsheng
刊名	JOURNAL OF COLLOID AND INTERFACE SCIENCE
	2019-09-01
卷号	551 页码:16-25
关键词	Heterogeneous Fenton Fe-Cu bimetal oxide Ordered porous carbon Interface mechanism
ISSN号	0021-9797
英文摘要	Cu(I) doped nano-Fe3O4 were synthesized and loaded on ordered porous carbon materials using a facile co-precipitated. The synthesized catalysts were characterized by XRD, XPS, HRTEM, FESEM-EDX mapping and N-2 adsorption-desorption. The results showed that the crystal unit cell of Fe3O4 was enlarged due to the implantation of small amount of Cu(I) into the Fe3O4 structure (Fe2.85Cu0.15O4). With increased Cu content, the catalyst was dominated with Cu2O and the Fe3O4 phase disappeared, the catalytic performance of Fe-Cu bimetal oxide became worse. The Cu(I)-Fe3O4/C composite was enriched with Fe(II), Fe(III) and Cu(I) sites. The prepared Cu-Fe bimetal oxide/C composite exhibited higher specific TOF and oxidation efficiency E on carbamazepine oxidation than Fe2.85Cu0.15O4 and Fe3O4. The enhanced catalytic reactivity was attributed to the synergetic effect of surface Fe and Cu species on the H2O2 activation. The dissolved metals induced catalytic reaction at pH 4.5-8.1 was ignorable. Thus, the catalytic decomposition of H2O2 by Cu-Fe3O4/C at near neutral pH was controlled by interface reactions. The CBZ in the close proximity to the interface was attacked by the generated ROS and formed urea, 2-hydroxybenzyl alcohol and other oxidative products. (C) 2019 Elsevier Inc. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/42635]
专题	生态环境研究中心_环境水质学国家重点实验室
作者单位	1.UNSW Sydney, Sch Civil & Environm Engn, UNSW Water Res Ctr, Sydney, NSW 2052, Australia 2.China Univ Geosci Wuhan, Fac Mat Sci & Chem, Wuhan 430074, Hubei, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Yang, Xiaofang,He, Jie,Yang, Qinxue,et al. Cu(I)-doped Fe3O4 nanoparticles/porous C composite for enhanced H2O2 oxidation of carbamazepine[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2019,551:16-25.
APA	Yang, Xiaofang,He, Jie,Yang, Qinxue,Jiao, Ruyuan,Liao, Guiying,&Wang, Dongsheng.(2019).Cu(I)-doped Fe3O4 nanoparticles/porous C composite for enhanced H2O2 oxidation of carbamazepine.JOURNAL OF COLLOID AND INTERFACE SCIENCE,551,16-25.
MLA	Yang, Xiaofang,et al."Cu(I)-doped Fe3O4 nanoparticles/porous C composite for enhanced H2O2 oxidation of carbamazepine".JOURNAL OF COLLOID AND INTERFACE SCIENCE 551(2019):16-25.