摘要
采用水热法合成了WO_(3)样品,通过光还原法和光化学沉积法在WO_(3)表面附着金属Ag和包覆CdS材料,以金属Ag作为中间固态体构建了Z型结构WO_(3)/Ag/CdS光催化剂.实验结果表明,WO_(3)光激发的导带电子和CdS光激发价带的空穴在中间体金属Ag位置处发生复合,使得WO_(3)价带的空穴和CdS导带的电子有效分离,从而有效地提高了WO_(3)/Ag/CdS光催化剂对溶液中MO的光催化降解效率.
The WO_(3)sample was synthesized by hydrothermal method,and then the intermediate solid metal Ag and CdS material were attached to the surface of WO_(3)with a Z-scheme WO_(3)/Ag/CdS structure by the photoreduction and photochemical deposition method,respectively.Experimental results show that the photoexcited conduction electrons of WO_(3)recombining with the photoexcited valence band holes of CdS at the intermediate metal Ag,while the the valence band holes of WO_(3)and the conduction band electrons of CdS would be effectively separated in the WO_(3)/Ag/CdS photocatalyst,thereby the photocatalytic degradation ability of the WO_(3)/Ag/CdS photocatalyst is effectively improved for MO in solution.
作者
魏学刚
康姜龙
王鹏程
王梅
WEI Xue-gang;KANG Jiang-long;WANG Peng-cheng;WANG Mei(School of Physics and Electronic Information Engineering,Qinghai Normal University,Xining 810016,China;Research Student Academy,Qinghai Normal University,Xining 810008,China)
出处
《青海师范大学学报（自然科学版）》
2022年第1期35-39,共5页
Journal of Qinghai Normal University(Natural Science Edition)
基金
2020年青海师范大学中青年科研基金(2020QZR008)
