Fabrication and photocatalytic activity of magnetic core@shell ZnFe2O4@Ag3PO4 heterojunction

被引：14

作者：

Hou, Guiqin ^{[1
,2
]}

Li, Yunkai ^{[1
]}

An, Weijia ^{[3
]}

Gao, Shuijing ^{[2
]}

Zhang, Wenli ^{[3
]}

Cui, Wenquan ^{[3
]}

机构：

[1] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China

[2] North China Univ Sci & Technol, Qinggong Coll, Tangshan 063009, Peoples R China

[3] North China Univ Sci & Technol, Coll Chem Engn, Tangshan 063009, Peoples R China

来源：

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2017年 / 63卷

关键词：

Composite; ZnFe2O4@Ag3PO4; Heterojunction; Semiconductors; Catalytic properties; VISIBLE-LIGHT IRRADIATION; IONIC LIQUID-MEDIUM; HYDROGEN EVOLUTION; COMPOSITE PHOTOCATALYST; EFFICIENT PHOTOCATALYST; ORANGE II; DEGRADATION; WATER; NANOCOMPOSITE; NANOPARTICLES;

D O I：

10.1016/j.mssp.2017.02.033

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Novel ZnFe2O4@Ag3PO4 core@shell heterojunction photocatalysts were fabricated through a solvothermal-liquid phase deposition method. Ag3PO4 was evenly dispersed on the surface of ZnFe2O4 microrods and approximately 150 nm in size. ZnFe2O4@Ag3PO4 composite photocatalysts could be recovered rapidly using the ferromagnetism of ZnFe2O4. Experimental results from the photodegradation of methylene blue (MB) indicated that the 14 wt% ZnFe2O4@Ag3PO4 photocatalyst sample showed the best catalytic activity by degrading 93% MB after 6 min of irradiation, the rate of degradation of the composite was 1.39 and 11.6 times those of Ag3PO4 and ZnFe2O4, respectively, which is attributed to the effective charge separation by the core@shell heterojuction between the ZnFe2O4 and Ag3PO4. The main mechanism during degradation was the direct oxidation by the photo-induced holes.

引用

页码：261 / 268

页数：8

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