期刊论文

Li, Hai-bin

英文

中国有色金属学报(英文版)

1003-6326

2017

27

5

1127-1133

10.1016/S1003-6326(17)60131-6

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [51102025]; Natural Science Foundation of Hunan Province, ChinaNatural Science Foundation of Hunan Province [14JJ7040]; China Torch Program [2014GH561172]

本校为第一且通讯机构

Monoclinic BiPO_4 with rod-like shape was prepared via a CTAB-assisted hydrothermal route. MnO_x nanoparticles were loaded on the surfaces of BiPO_4 rods by a photo-deposition process to form MnO_x/BiPO_4 heterojunctions. The as-prepared samples were characterized by XRD, SEM, TEM, XPS, FL, and UV-Vis diffuse reflectance measurements. The results showed that MnO_x nanoparticles were strongly anchored to the surfaces of BiPO_4 rods when the mole ratio of Mn to Bi was controlled at a low level, forming MnO_x/BiPO_4 heterojunctions with effective ...

采用CTAB辅助水热法制备棒状单斜相BiPO_4。通过光沉积在BiPO_4表面负载MnO_x纳米粒子,形成MnO_x/BiPO_4异质结。采用XRD、SEM、TEM、XPS、PL及UV-Vis等手段对样品进行表征。结果表明:当Mn/Bi摩尔比控制在较低水平时,MnO_x纳米粒子牢固附着在BiPO_4表面,形成具有有效界面的MnO_x/BiPO_4异质结。亚甲基蓝光降解实验结果表明,MnO_x/BiPO_4异质结相对BiPO_4具有更高的光催化活性。这是因为异质结的形成,促进了界面电荷迁移,抑制了光生电子–空穴对的复合,从而获得更高的量子效率。而且MnO_x/BiPO_4异质结相对BiPO_4在300~420 nm范围内具有更高的光吸收能力,这也有利于增强光催化活性。