摘要
采用TiO2溶胶-凝胶法制备了复合半导体MoS2/TiO2纳米材料,用XRD、UV-VIS-DRS、BET等手段对样品进行了表征,并以亚甲基蓝染料为探针分子详细讨论了MoS2掺杂量、染料初始浓度等对其光催化性能的影响.结果表明:MoS2/TiO2复合半导体纳米材料具有较好的可见光催化活性;当染料浓度为0.284mmol·L-1,催化剂用量为0.5 g·L-1,亚甲基蓝染料的光催化降解率为96.5%.
MoSJTiOz nanomaterial prepared by sol-gel process was characterized by XRD, UV-VIS-DRS, BET and so on. Meanwhile methylene blue （MB） was taken as the probe molecular to evaluate the visible light photocatalytic activity of the compound semicon- ductor materials. The effects of ration of MoS2 in composite catalyst , the initial concentration of methylene blue and the quantity of catalyst on the degradation rate o[ the methylene blue solution were investigated. The results show that the compound semiconductor materials ex-hibited the best photocatalytic activity being the decolorization proportion of methylene blue is 96.5% when the quantity of catalyst 0.5 g·L^-1, the initial concentration of methylene blue is 0. 284 mmol·L^-1 under visible light.
出处
《福建师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2012年第5期73-77,共5页
Journal of Fujian Normal University：Natural Science Edition
基金
福建省教育厅资助项目(JA09052)
福州市科技局资助项目(2009-G-110)
