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活性炭纤维负载TiO2光催化降解苯酚

, PP. 41-44

Keywords: 二氧化钛,活性炭纤维,光催化,苯酚

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Abstract:

以硫酸钛为原料,通过水解法在活性炭纤维(ACF)上制备了二氧化钛(TiO2)薄膜.以主波长为254nm的紫外灯作为光源,利用所制的TiO2光催化降解40mg/L的苯酚溶液,考察了不同条件下苯酚的去除效果、ACF吸附性能及TiO2/ACF的光催化活性.结果表明TiO2/ACF光催化降解苯酚适宜在中性溶液中进行;随着光照强度的增加,苯酚去除率增大;当溶液pH=7.5,苯酚浓度为40mg/L,紫外灯光照强度为1.75W/L时,TiO2/ACF光催化降解苯酚4h后,苯酚去除率可达88.2%.溶液中加入H2O2有利于苯酚的降解去除.

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