新型连续光催化反应器光催化降解特性的研究  

Research of photocatalytic degradation capacity in the new type of continuous photocatalytic reactor

作　　者：邓洪权[1] 唐亭[1] 符纯华[2] 蒋琪英[1,3] 胡亚敏[1] 霍冀川[1] 

机构地区：[1]西南科技大学材料学院化学系,四川绵阳621010 [2]四川理工学院机械学院,四川自贡643000 [3]西南科技大学教育部生物质材料工程中心,四川绵阳621010

出　　处：《工业水处理》2013年第12期31-34,共4页Industrial Water Treatment

基　　金：过程装备与控制工程四川省高校重点实验室基金(GK201002);西南科技大学基金(13syjs04)

摘　　要：在设计并建立的连续列管式光催化反应器中,以纳米TiO2为催化剂对甲基橙水溶液进行光催化降解性能研究,系统考察了管程数、连接方式、气体流量、液体流量、pH、催化剂用量以及被降解物初始浓度等参数对降解率的影响。最适宜条件:管程为4且采用首尾相互连接方式,液相和气相流速分别为0.5 L/h、3 L/min,pH为4.0。在给定条件下反应器对质量浓度为20 mg/L的甲基橙溶液的光催化脱色率达最大值97.7%。In the design and establishment of a new type of continuous flow tubular array photocatalytic reactor, the photocatalytic degradation capacity of methyl orange （MO） solution has been studied by using nano TiO2 as catalyst. The effects of operating parameters, including the number of tube passes, connection mode, liquid and air flow rates, pH,catalyst dosage and initial concentration of MO on photocatalytic degradation rate has been systematically investigated. When the number of tube passes reaches four and all tubes are connected in form of end to end, the flow velocities of liquid phase and gas phase are 0.5 L/h and 3 L/min,respectively,its efficacy is the best. Under given conditions ：pH =4 and mass concentration 20 mg/L,the photocatalytic decoloration rate of methyl orange solution reaches the maximum value 97.7%.

关 键 词：光催化反应器 甲基橙 纳米二氧化钛 

分 类 号：X703[环境科学与工程—环境工程]