Preparation and Photocatalytic Properties of Composites Mental Oxides Derived from Layered Double Hydroxides

被引：0

作者：

Zhang G. ^{[1
]}

Zhang X. ^{[1
]}

Xue J. ^{[1
]}

Meng Y. ^{[2
]}

Xia S. ^{[1
]}

Ni Z. ^{[1
]}

机构：

[1] College of Chemical Engineering, Zhejiang University of Technology, Hangzhou

[2] School of Life Sciences, Huzhou University, Huzhou, 313000, Zhejiang

来源：

Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | 2019年 / 47卷 / 04期

关键词：

Catechol; Composite oxide; Gold and cobalt loading; Layered double hydroxides; Photocatalysis;

D O I：

10.14062/j.issn.0454-5648.2019.04.06

中图分类号：

学科分类号：

摘要：

Gold and cobalt were loaded on the surface of zinc-aluminum layered double hydroxides at different ratios via an impregnation-reduction process. The composites mental oxides as a high photocatalytic material were derived from AuCo/ZnAl-LDHs after calcination. The crystal structure, morphology and optical performance of samples were characterized by X-ray diffraction, transmission electron microscopy and ultraviolet-visible diffuse-reflectance spectroscopy, respectively. The photocatalytic activities were evaluated via the degradation of catechol under visible light irradiation. The results show that the photocatalyst with a total loading mass of Au/Co of 2% and Au:Co molar ratio of 5:1, calcined at 400℃ has an optimum degradation efficiency of catechol. In this case, 94.7% of catechol can be degraded at 5 h. © 2019, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.

引用

页码：466 / 472

页数：6

共 25 条

[11]

Cojocaru B., Andrei V., Tudorache M., Et al., Enhanced photo-degradation of bisphenol pollutants onto gold-modified photocatalysts, Catal Today, 284, pp. 153-159, (2017)

[12]

Zhao Y., Studies on the preparation and photocatalytic performances of highly dispersed layered structure catalysts, (2013)

[13]

Mikami G., Grosu F., Kawamura S., Et al., Harnessing self-supported Au nanoparticles on layered double hydroxides comprising Zn and Al for enhanced phenol decomposition under solar light, Appl Catal B, 199, pp. 260-271, (2016)

[14]

Li Z., Zhang Q.W., Liu X.Z., Et al., One-step mechanochemical synthesis of plasmonic Ag/Zn-Al LDH with excellent photocatalytic activity, Catal Today, 53, 18, pp. 12759-12806, (2018)

[15]

Wang D., Wang C., Zhao Q., Et al., J Inorg Mater, 33, 6, pp. 659-666, (2018)

[16]

Kim S.H., Durand P., Andre E., Et al., Enhanced photocatalytic ability of Cu, Co doped ZnAl based mixed metal oxides derived from layered double hydroxides, Colloid Surf A, 524, pp. 43-52, (2017)

[17]

Zheng X., Du J., Fu X., Et al., J Chin Ceram Soc, 46, 1, pp. 85-92, (2018)

[18]

Cao G., Xia S., Ni Z., Et al., J Chin Ceram Soc, 44, 5, pp. 726-732, (2016)

[19]

Lin Y., Zeng Z.K., Liu L., Et al., Facile synthesis of ZnAl-layered double hydroxide microspheres with core-shell structure and their enhanced adsorption capability, Mater Lett, 156, pp. 169-172, (2015)

[20]

Yuan X.Y., Jing Q.Y., Chen J.T., Et al., Photocatalytic Cr(VI) reduction by mixed metal oxide derived from ZnAl layered double hydroxide, Appl Clay Sci, 143, pp. 168-174, (2017)

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