无机材料学报Issue(7)：713-718,6.DOI:10.15541/jim20140591
石墨烯-ZnIn2S4纳米复合微球的制备及光催化产氢活性
Preparation and Photocatalytic Activity for Hydrogen Evolution of Graphene-ZnIn2S4 Nanocomposite Spheres
摘要
Abstract
Graphene-ZnIn2S4 nanocomposite spheres were prepared via a facile photocatalytic reduction method. The samples were characterized by XRD, SEM, TEM, FT-IR, XPS and DRS. The results showed that the graphene oxide was reduced to graphene and ZnIn2S4 nanospheres were loaded on the surface of graphene sheets through a photocatalytic reduction process. The experimental results for photocatalytic hydrogen evo-lution of the samples indicated that the amount of evoluted H2 under simulated sunlight irradiation using gra-phene-ZnIn2S4 nanocomposite spheres was 1540.8μmol, 9.8 times of the pure ZnIn2S4 nanospheres, under op-timal technological condition with the graphene content of 2.0wt% for 24 h. The enhanced performance can be attributed to the graphene which effectively promoted the transfer of photogenerated electrons. Furthermore, a detailed photocatalytic hydrogen evolution mechanism of graphene-ZnIn2S4 nanocomposite spheres was in-vestigated.关键词
光催化还原法/ZnIn2S4纳米微球/石墨烯/产氢Key words
photocatalytic reduction method/ZnIn2S4 nanospheres/graphene/hydrogen evolution分类
化学化工引用本文复制引用
周民杰,张娜,侯朝辉..石墨烯-ZnIn2S4纳米复合微球的制备及光催化产氢活性[J].无机材料学报,2015,(7):713-718,6.基金项目
国家自然科学基金(51372080) （51372080）
中国博士后基金(2012M51220) National Natural Science Foundation of China (51372080) （2012M51220）
China Postdoctoral Science Foundation (2012M51220) （2012M51220）
