Magnetically Separable and Recyclable γ-Fe2O3/HAp/Ag3PO4 Composite Microsheets: Fabrication, Characterization, and Photocatalytic Performance

被引：1
作者：
An, Liang [1 ,2 ,3 ]
Zhao, Xiaolian [1 ,2 ]
Xu, Chengkang [1 ,2 ]
Yan, Zhaoxiong [1 ,2 ]
Yang, Zhihua [1 ,2 ]
Xu, Zhihua [1 ,2 ,3 ]
机构：
[1] Minist Educ, Key Lab Optoelect Chem Mat & Devices, Wuhan 430056, Hubei, Peoples R China
[2] Jianghan Univ, Hubei Key Lab Ind Fume & Dust Pollut Control, Wuhan 430056, Hubei, Peoples R China
[3] Huanggang Normal Univ, Hubei Key Lab Proc & Applicat Catalyt Mat, Huanggang 438000, Peoples R China
来源：
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2019年 / 93卷 / 07期
关键词：
gamma-Fe2O3; hydroxyapatite; Ag3PO4; microsheets; magnetic photocatalyst; HYDROXYAPATITE NANOWIRES; NANOCOMPOSITES; NANOPARTICLES; DEGRADATION; MECHANISM;
D O I：
10.1134/S003602441907015X
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this work, magnetically separable and recyclable gamma-Fe2O3/HAp/Ag3PO4 composite microsheets were prepared by hydrothermal and in-situ ion-exchange methods, in which photoactive Ag3PO4 nanoparticles and magnetic gamma-Fe2O3 nanoparticles are distributed on the hydroxyapatite (HAp) microsheets. Characterization of the samples was performed by XRD, FE-SEM, EDS, FT-IR, and VSM. The photocatalytic performance of the samples was checked by investigating the degradation process of four different organic dyes under visible-light irradiation. Photocatalytic experiments reveal that all gamma-Fe2O3/HAp/Ag3PO4 samples show certain photocatalytic activities for the degradation of OII, and the degradation rate is different when diverse gamma-Fe2O3/HAp/Ag3PO4 samples are added into the OII solution. FHA-4 exhibits the highest degradation rate, and it could degrade different organic dyes, which means it has the potential to be applied into the treatment of complex wastewater containing different organic dyes. In addition, FHA-4 exhibits ferromagnetic feature, and can be easily separated from water by an external magnetic field.
引用
收藏
页码：1343 / 1348
页数：6
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