苯酚在负载型ZnO/TiO_2复合催化剂上光致降解的研究  

The study of the photocatalytic disposal of phenolic wastewater with the immobilized ZnO/TiO_2 combined catalysts

作　　者：董维芳[1] 姜庆利[2] 谭砂砾[2] 

机构地区：[1]山东轻工业学院轻化与环境工程学院,山东济南250100 [2]山东大学环境科学与工程学院,山东济南250061

出　　处：《山东轻工业学院学报（自然科学版）》2004年第3期63-68,共6页Journal of Shandong Polytechnic University

摘　　要：　以紫外灯为光源,研究了苯酚在加入自制的ZnO TiO2复合催化剂的降解情况,考察了H2O2,Fe2+,苯酚最初浓度,曝气量,pH值,Na2S6O8,复合催化剂的煅烧温度,氧化锌的掺杂量,光照强度等因素对苯酚光解效果的影响。实验证明,除了pH值和Na2S6O8对苯酚的解解几乎无影响外,其它因素均为光催化反应的关键因素,并对ZnO TiO2复合催化剂负载进行了大量研究,以期提高其催化活性和光降解效率。In this paper,the authors study the disposal condition of phenol wastewater with ZnO/TiO_2 combined catalysts by being submitted to the UV light.Several factors are studied in order to find the best way to degrade the practical phenol wastewater.The factors include H_2O_2,Fe~2+,O_2,pH,Na_2S_6O_8,initial phenol concentration,calcined temperature,catalyst ingredient proportion,repeated useful times,light intensity and so on.The experiment also draws a conclusion that the above factors can produce great effect on phenol compound except for pH and Na_2S_6O_8.A large amount of study is made into immobilized ZnO/TiO_2 combined catalysts in order to increase the catalytic activity and the disposal efficiency.

关 键 词：复合催化剂 苯酚 负载型 Na2S TiO2 煅烧温度 研究 光降解 曝气量 光解 

分 类 号：X703[环境科学与工程—环境工程] TQ426[化学工程]