摘要
采用溶胶-凝胶法制备了钛酸锶催化剂,考察了溶液pH、钛酸锶加入量、双氧水加入量、V_2O_5掺杂量等因素对钛酸锶超声降解甲基橙效果的影响。实验结果表明:当溶液pH为2.00、钛酸锶加入量为1.0g/L、双氧水加入量为10.0mL/L、反应120 min时,甲基橙降解率可达98.20%;V_2O_5的掺杂可显著提高钛酸锶的催化性能,掺杂10%V_2O_5的钛酸锶催化剂催化超声降解反应20 min时甲基橙的降解率是纯钛酸锶的两倍。
Strontium titanate catalyst was prepared by sol-gel method. The factors affecting ultrasound degradation of methyl orange were studied. The experimental results show that： When the solution pH is 2.00, the dosage of strontium titanate is 1.0 g/L, the dosage of H2O2 is 10.0 mL/L and the reaction time is 120 min, the degradation efficiency of methyl orange can reach 98.20% ; The catalytic capability of strontium titanate can be improved significantly by addition of Ve 05 , and after 20 min of reaction, the degradation efficiency of methyl orange by strontium titanate doped with 10% V2O5 is 2 times that by pure strontium titanate.
出处
《化工环保》
CAS
CSCD
北大核心
2011年第1期13-17,共5页
Environmental Protection of Chemical Industry
基金
国家自然科学基金青年基金资助项目(20906072)
关键词
钛酸锶
催化剂
超声降解
甲基橙
五氧化二钒
strontium titanate
catalyst
ultrasound degradation
methyl orange
vanadium pentoxide
