Fabrication of electrochemically nonporous NiO-ZnO/TiO2 nanotubes/Ti plates for photocatalytic disinfection of microbiological pollutants

被引：15

作者：

Mohaghegh, Neda ^{[1
]}

Faraji, Masoud ^{[2
]}

Abedini, Amir ^{[3
]}

机构：

[1] Islamic Azad Univ, Cent Tehran Branch, Dept Petr Min & Mat Engn, Tehran, Iran

[2] Urmia Univ, Chem Fac, Dept Phys Chem, Electrochem Res Lab, Orumiyeh, Iran

[3] Isfahan Univ Technol, Fac Chem, Dept Phys Chem, Esfahan 8415683111, Iran

来源：

JOURNAL OF THE IRANIAN CHEMICAL SOCIETY | 2019年 / 16卷 / 06期

关键词：

Microbiological pollutants; Heterogeneous catalysis; NiO-ZnO hybrids; Photocatalytic disinfection; P-N HETEROJUNCTION; GRAPHENE OXIDE; ANATASE TIO2; DEGRADATION; NIO; NANOPARTICLES; WATER; CONVERSION; SUNLIGHT; ARRAYS;

D O I：

10.1007/s13738-019-01595-5

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nonporous NiO-ZnO/TiO2 nanotubes/Ti photocatalyst plates were fabricated via facile electrochemical method. The structural and morphological properties of the modified plates were investigated by scanning electron microscopy and X-ray diffraction, while their photoelectrochemical (PEC) characterizations were evaluated by transient photocurrent responses and electrochemical impedance spectroscopy. Antimicrobial activities of the fabricated plates against Escherichia coli bacteria and Candida albicans fungi were studied under UV light irradiation. The results indicated that the photocatalytic and PEC activities of the NiO-ZnO/TiO2 nanotubes/Ti plates are much higher than those of TiO2 nanotubes/Ti, ZnO/TiO2 nanotubes/Ti and NiO/TiO2 nanotubes/Ti. The synergetic effect among NiO, ZnO and TiO2 nanotubes motivated a fast charge separation as well as a slow electron/hole recombination, thus increasing the photocatalytic performance of the nonporous NiO-ZnO/TiO2 nanotubes/Ti photocatalyst plate.

引用

页码：1207 / 1215

页数：9

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