摘要
制备了光催化剂纳米ZnO,并对催化剂进行表征,探讨了超声协同纳米ZnO光催化氧化降解亚甲基蓝的影响因素.结果表明:与单一超声法(US)、单一光催化氧化法(UV+ZnO+O2)相比,超声协同光催化氧化法(US+UV+ZnO+O2)对亚甲基蓝的降解效果显著;在超声功率为200 W、催化剂用量为2.0g/L、亚甲基蓝溶液的初始浓度为10mg/L、光照时间100min时,亚甲基蓝溶液的降解率可达92%以上.
Nano-ZnO was prepared and characterized.The factors of photocatalytic degradation of methylene blue by nano-ZnO with ultrasound wave were studied.Results showed that the US＋UV＋ZnO＋O2 system had better degradation effect on methylene blue compared with US system and UV＋ZnO＋O2 system.The photocatalytic degradation rate of methylene blue was over 92% at the ultrasonic power of 200 W,the amount of catalyst 2.0 g/L,the concentration of methylene blue of 10 mg/L,and the time of photocatalytic degradation of 100 min.
出处
《河南师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2012年第5期106-109,共4页
Journal of Henan Normal University(Natural Science Edition)
基金
河南省重点科技攻关项目(092102310184)
河南省教育厅自然科学研究计划项目(2008C480002)
关键词
超声波
纳米ZNO
光催化降解
亚甲基蓝
ultrasound wave； nano-ZnO； photocatalytic degradation； methylene blue
