摘要
采用溶胶-凝胶法制备的掺杂Co纳米TiO_2粉体(Co/TiO_2),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/TiO_2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0.01mg/mL,pH=9～10,纳米Co/TiO_2加入量达到0.25mg/mL,光照时间为150min时,溶液中的PCP降解率达到了97%;纳米Co/TiO_2粉末与纳米TiO_2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。
Under UV in：adiation, nanopowders TiO2 doped with Co which were prepared by sol - gel methods were used in the photocatalytic degradation of pentachlorophenol （PCP）. The effects of degradation time, the amount of catalyst, and initial concentration on photoeatalytic degradation of PCP were investigated. The initial concentration of the PCP solution was 0.01 mg/mL, pH 9.0 - 10, the amount of catalyst was 0.25 mg/mL, when degradation time was 150 min, the results indicated that the degradation rates of PCP is over 97%. Under the UV and visible light, compared to pure TiO2 , nanopowders of Co/TiO2 have a certain increase for the photocatalytic degradation of PCP.
出处
《钛工业进展》
CAS
2011年第3期17-20,共4页
Titanium Industry Progress
基金
陕西省自然科学基金(2009JM2007)
西北工业大学基础研究基金(NPU-FFR-JC200823)
