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TiO2催化超声降解亚甲基蓝溶液

Zhen-rong LIU,Hong LI,Jun WANG,Zhao-hong ZHANG,Bao-dong GUO,Xiang-dong ZHANG,Jing WU

CHEMICAL RESEARCH（2005）

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Abstract
采用高温活化处理过的普通锐钛型TiO2为催化剂,研究了各种因素对亚甲基蓝超声降解反应的影响.结果表明:在普通锐钛型TiO2作用下,亚甲基蓝的超声降解效果明显优于单纯超声降解.降解动力学符合一级反应.在超声波频率40 kHz,输出功率50 W,催化剂用量1.0 g/L,pH为5.16,40 ℃,亚甲基蓝水溶液初始浓度5 mg/L的条件下,120 min左右降解率即可达到80 %以上.
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Key words
methylene blue catalyzed,ultrasonic degradation,tio_2
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