研究论文
赵德明,史惠祥,雷乐成,汪大翚.US/UV协同催化氧化降解对氯苯酚的研究[J].环境科学学报,2003,23(5):588-592
US/UV协同催化氧化降解对氯苯酚的研究
- Degradation of 4-Chlorophenol in wastewater by US/UV synergetic catalysis technology
- 基金项目：国家自然科学基金资助项目(编号:20176053)
- 作者
- 单位
- 赵德明
- 1. 浙江大学(玉泉校区)环境工程系,杭州 310027; 2. 浙江工业大学化工与材料学院
- 史惠祥
- 浙江大学(玉泉校区)环境工程系,杭州 310027
- 雷乐成
- 浙江大学(玉泉校区)环境工程系,杭州 310027
- 汪大翚
- 浙江大学(玉泉校区)环境工程系,杭州 310027
- 摘要：选择掺杂过渡金属离子Fe3+的纳米TiO2为催化剂,研究了US(超声波)UV(紫外光)协同催化氧化水中对氯苯酚(4-CP)的降解效果,考察了对氯苯酚的起始浓度、超声波声强、溶液初始pH、饱和气体种类、反应温度和催化剂投加量对氯苯酚降解速率的影响.研究结果表明:US/UV协同催化氧化处理比单独超声波处理和光化学处理,4-CP降解速率提高了1.5-1.7倍,证实了声光联合技术具有明显的协同效应.
- Abstract：Chlorophenol (4-CP) solution was treated by US(Ultrasound)/UV(Ultraviolet) synergetic catalysis technology and the major influencing factors such as the sound intensity, initial pH value of solution, initial 4-CP concentration, the amount of catalyst and medium temperature were examined in this paper. The results showed that that US/UV synergetic technology was superior to each of ultrasound irradiation and photochemistry alone. Within half an hour, the sum of 4-CP removal rates by as using ultrasound irradiation and photochemistry respectively to degrade 4-CP was obviously less than the removal rate by using US/UV synergetic technology. The significant synergetic effect of US/UV was identified.
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