Enhanced photocatalytic degradation of organic pollutants over basic bismuth (III) nitrate/BiVO4 composite

Yuanyuan Liu; Zeyan Wang; Baibiao Huang; Xiaoyang Zhang; Xiaoyan Qin; Ying Dai

doi:10.1016/j.jcis.2010.04.019

Enhanced photocatalytic degradation of organic pollutants over basic bismuth (III) nitrate/BiVO4 composite

J Colloid Interface Sci. 2010 Aug 1;348(1):211-5. doi: 10.1016/j.jcis.2010.04.019. Epub 2010 May 15.

Authors

Yuanyuan Liu¹, Zeyan Wang, Baibiao Huang, Xiaoyang Zhang, Xiaoyan Qin, Ying Dai

Affiliation

¹ State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, People's Republic of China.

PMID: 20478568
DOI: 10.1016/j.jcis.2010.04.019

Abstract

Basic bismuth (III) nitrate (BBN)/BiVO(4) composites were prepared by a coprecipitation method. A variety of techniques including X-ray powder diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HR-TEM), diffuse reflectance spectroscopy (DRS), N(2) adsorption, and X-ray photoelectron spectroscopy (XPS) were employed to characterize the resulting materials. The composite shows higher photocatalytic activity than BiVO(4) over degradation of organic pollutants (RhB, MO, phenol, and 2-propanol). A mechanism was proposed for the enhanced photocatalytic activity. The proposed mechanism was confirmed by experiments with hydroxyl radicals.