采用溶胶-凝胶法制备的掺杂Co纳米TiO2粉体(Co/TiO2),在紫外光照射下光催化降解水中五氯苯酚(PCP).研究了光照反应时间、催化剂加入量、PCP溶液初始浓度等因素对纳米Co/TiO2光催化降解五氯苯酚的影响.在溶液中五氯苯酚初始浓度为0.01 mg/mL,pH=9～10,纳米Co/TiO2加入量达到0.25 mg/mL,光照时间为150 min时,溶液中的PCP降解率达到了97%;纳米Co/TiO2粉末与纳米TiO2相比,在紫外光和可见光下对水中PCP的降解效果均有一定提高.
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