| 新型负载型纳米TiO_2光催化降解苯酚的试验研究 |
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| 引用本文： | 沈昱,彭从哲,徐锁洪.新型负载型纳米TiO_2光催化降解苯酚的试验研究[J].环境科学与技术,2004,27(Z1):11-12. |
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| 作者姓名： | 沈昱 彭从哲 徐锁洪 |
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| 作者单位： | 1. 大连铁道学院环境科学与工程系,大连 116028
2. 石家庄车辆厂,石家庄 050000 |
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| 摘 要： | 以岩棉为载体制备一种新型负载型纳米TiO2,对有机污染物苯酚的降解效果较好。岩棉对苯酚有一定的吸附作用。经过120min的处理,苯酚基本上被完全降解。流速对降解率的影响较大,本试验选择流速为5mL/min。初始浓度越小,苯酚的降解效果越好。通入O2和加入适量H2O2均有利于苯酚的降解,且少量的H2O2可使苯酚的降解率大大提高。苯酚在pH=4.5时降解效果最好。
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| 关 键 词： | 岩棉 二氧化钛 苯酚 光催化降解 |
| 文章编号： | 1003-6504(2004)增-0011-03 |
| 修稿时间： | 2004年2月23日 |
Study on Photocatalytic Degradation of Phenol by Using New Coated Nano-TiO2 |
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| SHEN Yu,PENG Cong-zhe,XU Suo-hong.Study on Photocatalytic Degradation of Phenol by Using New Coated Nano-TiO2[J].Environmental Science and Technology,2004,27(Z1):11-12. |
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| Authors: | SHEN Yu PENG Cong-zhe XU Suo-hong |
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| Institution: | SHEN Yu~1,PENG Cong-zhe~2,XU Suo-hong~1 |
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| Abstract: | A new coated nano-TiO_2, which is attached to the rock wool, has good effect on photocatalytic degradation of organic pollutant phenol. Rock wool can absorb some phenol, and phenol can almost be degradated completely after 120min. The flow rate in this test is 5mL/min. The less initial concentration is, the better degradation of phenol is. O_2 and H_2O_2 are both helpful to the degradation, even a little H_2O_2 can greatly improve the degradation rate of phenol. Phenol is degradated most effective at pH 4.5. |
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| Keywords: | rock wool TiO_2 phenol photocatalytic degradation |
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