Key Lab of Green Processing and Functional Textiles of New Textile Materials Ministry of Education, College of Material Science and Engineering, Wuhan Textile University, Wuhan, 410000, P. R. China.
School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China.
Sci Rep. 2017 Aug 11;7(1):7979. doi: 10.1038/s41598-017-07342-1.
A high-performance and novel photocatalyst of BiVO-reduced Graphene Oxide (BiVO-rGO) nanocomposite was prepared by a facile hydrothermal method. The photocatalyst was characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electronic microscopy, UV-Vis diffusion reflectance spectroscopy, photoluminescence spectroscopy and UV-Vis adsorption spectroscopy, respectively. The visible-light photocatalytic activity was evaluated by oxidation of methyl orange (MO) under simulated sunlight irradiation. The results show that the BiVO-rGO nanocomposites exhibit enhanced photocatalytic performance for the degradation of MO with a maximum removal rate of 98.95% under visible light irradiation as compared with pure BiVO (57.55%) due to the increased light absorption intensity and the degradation of electron-hole pair recombination in BiVO with the introduction of the rGO.
通过简便的水热法制备了一种高性能的新型光催化剂 BiVO-还原氧化石墨烯（BiVO-rGO）纳米复合材料。通过 X 射线衍射、X 射线光电子能谱、扫描电子显微镜、透射电子显微镜、紫外-可见漫反射光谱、光致发光光谱和紫外-可见吸附光谱分别对光催化剂进行了表征。通过模拟太阳光照射下氧化甲基橙（MO）来评估可见光光催化活性。结果表明，与纯 BiVO（57.55%）相比，BiVO-rGO 纳米复合材料在可见光照射下对 MO 的降解具有增强的光催化性能，最大去除率达到 98.95%，这是由于 rGO 的引入增加了光吸收强度并降解了 BiVO 中的电子-空穴对复合。
