Highly efficient visible light-induced photocatalytic degradation of methylene blue over InVO4/BiVO4 composite photocatalyst

被引：39

作者：

Lamdab, Umaporn ^{[1
]}

Wetchakun, Khatcharin ^{[2
]}

Phanichphant, Sukon ^{[3
]}

Kangwansupamonkon, Wiyong ^{[4
]}

Wetchakun, Natda ^{[1
]}

机构：

[1] Chiang Mai Univ, Dept Phys & Mat Sci, Fac Sci, Chiang Mai 50200, Thailand

[2] Ubon Ratchathani Rajabhat Univ, Fac Sci, Program Phys, Ubon Ratchathani 34000, Thailand

[3] Chiang Mai Univ, Mat Sci Res Ctr, Fac Sci, Chiang Mai 50200, Thailand

[4] Natl Nanotechnol Ctr, Klongluang 12120, Pathum Thani, Thailand

来源：

JOURNAL OF MATERIALS SCIENCE | 2015年 / 50卷 / 17期

关键词：

HYDROGEN-EVOLVING PHOTOCATALYST; HYDROTHERMAL SYNTHESIS; RHODAMINE-B; BIVO4; PERFORMANCE; FABRICATION; REMOVAL; HETEROJUNCTIONS; MORPHOLOGIES; CRYSTALLINE;

D O I：

10.1007/s10853-015-9126-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A highly efficient and visible light responsive photocatalyst was developed by indium vanadate (InVO4)/bismuth vanadate (BiVO4) composite photocatalyst. The samples were characterized by X-ray diffraction (XRD), Brunauer-Emmett-Teller, scanning electron microscopy, transmission electron microscopy (TEM), UV-Vis diffuse reflectance spectra, XPS, zeta potential, and photoluminescence techniques. The XRD, TEM, and XPS results indicated the prepared sample was actually a two-phase composite: InVO4 and BiVO4. Photocatalytic activities of all catalysts were evaluated for the degradation of methylene blue in aqueous solution under visible light irradiation. The highest activity was obtained in the InVO4/BiVO4 composite using 0.8:0.2 mol ratio of InVO4:BiVO4. On the basis of the calculated energy band positions, the mechanism of enhanced photocatalytic activity was discussed.

引用

页码：5788 / 5798

页数：11

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