光催化
X射线光电子能谱
材料科学
吸附
可见光谱
电化学
化学工程
光化学
辐照
核化学
催化作用
化学
物理化学
有机化学
电极
工程类
核物理学
物理
光电子学
作者
Xiaodong Zhang,Yang Yang,Wenyuan Huang,Yiqiong Yang,Yuxin Wang,Chi He,Ning Liu,Minghong Wu,Liang Tang
标识
DOI:10.1016/j.materresbull.2017.11.028
摘要
In this study, g-C3N4 nanosheets coated UiO-66 nanohybrids were fabricated via a simple solvothermal method. The physicochemical parameters, structural and electrochemical properties of g-C3N4/UiO-66 nanohybrids (CNUO-x) were investigated. The nanohybrids were systematically characterized by XRD, FT-IR, TGA, TEM, SEM, EDS elemental mappings, XPS, N2 adsorption-desorption isotherms, PL and DRS. It was found that the addition of moderate g-C3N4 could enhance the separation and migration rate of photo-induced charges, consequently leading to the increase of photocatalytic efficiency. The CNUO-1 nanohybrid exhibited better photocatalytic activity for the oxidation of Rh B under visible light irradiation, and displayed about 6.0 and 3.3 times faster than that of g-C3N4 and UiO-66, respectively. Meanwhile, the nanohybrid showed excellent stability and reusability in four cyclic experiments. Finally, the increased photocatalytic reaction mechanism was also proposed. O2−, h+ and OH were further found to be the main active contributors.
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