Efficient Noble-Metal-Free γ-Fe2O3@NiO Core-Shell Nanostructured Photocatalysts for Water Oxidation

被引：16

作者：

Du, Xiaoqiang ^{[1
,2
]}

Wei, Jie ^{[1
,2
]}

Zhao, Jinli ^{[1
,2
]}

Han, Ruixin ^{[1
,2
]}

Ding, Yong ^{[1
,2
,3
]}

机构：

[1] Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China

[2] Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China

[3] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

来源：

CHEMISTRY-AN ASIAN JOURNAL | 2014年 / 9卷 / 10期

基金：

中国国家自然科学基金;

关键词：

magnetic properties; nanostructures; oxidation; photocatalysis; water; VISIBLE-LIGHT-DRIVEN; CATALYST; COMPLEXES; IRON; HYDROXIDE; EVOLUTION; HYDROGEN; FERRITE; LIGAND; OXIDE;

D O I：

10.1002/asia.201402652

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Flowerlike noble-metal-free -Fe2O3@NiO core-shell hierarchical nanostructures have been fabricated and examined as a catalyst in the photocatalytic oxidation of water with [Ru(bpy)(3)](ClO4)(2) as a photosensitizer and Na2S2O8 as a sacrificial electron acceptor. An apparent TOF of 0.29mols(-1)m(-2) and oxygen yield of 51% were obtained with -Fe2O3@NiO. The -Fe2O3@NiO core-shell hierarchical nanostructures could be easily separated from the reaction solution whilst maintaining excellent water-oxidation activity in the fourth and fifth runs. The surface conditions of -Fe2O3@NiO also remained unchanged after the photocatalytic reaction, as confirmed by X-ray photoelectron spectroscopy (XPS).

引用

页码：2745 / 2750

页数：6

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