Co3O4 Nanoparticles Modified TiO2 Nanotube Arrays with Improved Photoelectrochemical Performance

被引：8

作者：

Cao, Huazhen ^{[1
]}

Lu, Yueheng ^{[1
]}

Ning, Wei ^{[1
]}

Zhang, Huibin ^{[1
]}

Zheng, Guoqu ^{[1
]}

机构：

[1] Zhejiang Univ Technol, Coll Mat Sci & Engn, Hangzhou 310014, Zhejiang, Peoples R China

来源：

RUSSIAN JOURNAL OF APPLIED CHEMISTRY | 2019年 / 92卷 / 01期

关键词：

TiO2 nanotube arrays; Co3O4; nanoparticles; photoelectrocatalysis; methyl orange degradation; PHOTOCATALYTIC ACTIVITY; THIN-FILMS; DEGRADATION; FABRICATION; COMPOSITES; DEPOSITION; CU2O/TIO2; OXIDATION; STRATEGY;

D O I：

10.1134/S1070427219010099

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Co3O4 modified TiO2 nanotube arrays (TiO2-NTs) were successfully fabricated by electrodeposition and thermal oxidation process. The prepared samples were characterized by field emission scanning electron microscopy (FESEM), transmission electron microscopic (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and UV-visible diffuse reflectance spectroscopy. The photoelectrocatalytic properties of as-prepared samples were investigated under visible light and UV-vis light irradiation. Meanwhile, taking methyl orange aqueous solution as target substrate for photoelectrocatalytic degradation experiments, the degradation rate under UV-vis light irradiation and dark condition were evaluated. The prepared Co3O4/TiO2-NTs exhibited much higher photoelectrochemical activity than TiO2-NTs under visible light irradiation and UV-vis light irradiation. The degradation rate of methyl orange on Co3O4/TiO2-NTs electrode reaches 90.7% under applied potential of 1.3 V and UV-vis light irradiation for 10 h, which is only 53.4% on TiO2-NTs electrode. The improved performance could be attributed to the higher photo-generated carrier concentration and carrier mobility.

引用

页码：64 / 70

页数：7

共 32 条

[1]

[Anonymous], J PHYS CHEM B

[2] Photocatalytic activity of CU2O/TiO2, Bi2O3/TiO2 and ZnMn2O4/TiO2 heterojunctions [J].

Bessekhouad, Y ;

Robert, D ;

Weber, JV .

CATALYSIS TODAY, 2005, 101 (3-4) :315-321

[3] Fabrication of a novel heterostructure of Co3O4-modified TiO2 nanorod arrays and its enhanced photoelectrochemical property [J].

Cao, Chunlan ;

Hu, Chenguo ;

Shen, Weidong ;

Wang, Shuxia ;

Wang, Jianli ;

Tian, Yongshu .

JOURNAL OF ALLOYS AND COMPOUNDS, 2013, 550 :137-143

[4] TiO2 nanotube-supported amorphous Ni-B electrode for electrocatalytic oxidation of methanol [J].

Cao, Huazhen ;

Wang, Zhiwei ;

Hou, Guangya ;

Zheng, Guoqu .

SURFACE & COATINGS TECHNOLOGY, 2010, 205 (03) :885-889

[5] MoS2/Au-Sensitized TiO2 Nanotube Arrays with Core-Shell Nanostructure for Hydrogen Production [J].

Cheng, Xiaorong ;

Lu, Yuhua ;

Gu, Shoulin ;

Dawson, Graham .

NANO, 2017, 12 (09)

[6] INTERPRETATION OF X-RAY PHOTOEMISSION SPECTRA OF COBALT OXIDES AND COBALT OXIDE SURFACES [J].

CHUANG, TJ ;

BRUNDLE, CR ;

RICE, DW .

SURFACE SCIENCE, 1976, 59 (02) :413-429

[7] Co3O4-coated TiO2 nanotube composites synthesized through photo-deposition strategy with enhanced performance for lithium-ion batteries [J].

Fan, Yuqian ;

Zhang, Na ;

Zhang, Liying ;

Shao, Haibo ;

Wang, Jianming ;

Zhang, Jianqing ;

Cao, Chunan .

ELECTROCHIMICA ACTA, 2013, 94 :285-293

[8] A review of imperative technologies for wastewater treatment I: oxidation technologies at ambient conditions [J].

Gogate, PR ;

Pandit, AB .

ADVANCES IN ENVIRONMENTAL RESEARCH, 2004, 8 (3-4) :501-551

[9] Synthesis and photocatalytic property of SnO2/TiO2 nanotubes composites [J].

Hou, Lin-Rui ;

Yuan, Chang-Zhou ;

Peng, Yang .

JOURNAL OF HAZARDOUS MATERIALS, 2007, 139 (02) :310-315

[10] Efficient photocatalytic degradation of acid orange 7 on metal oxide p-n junction composites under visible light [J].

Jang, Jum Suk ;

Kim, Hyun Gyu ;

Lee, Se-Hee .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2012, 73 (11) :1372-1377

← 1 2 3 4 →