浅槽式太阳能光催化反应器研究  

Studies on the sun-lighting shallow slot photocatalytic reactor

作　　者：史载锋[1] 吴亚弟[1] 任学昌[2] 

机构地区：[1]海南师范大学化学系,海南海口571158 [2]南京大学环境学院污染控制与资源化研究国家重点实验室,江苏南京210093

出　　处：《海南师范学院学报（自然科学版）》2007年第2期147-151,共5页Journal of Hainan Normal University:Natural Science

基　　金：国家863计划项目(2002AA601250);海南省自然科学基金资助项目(80684)

摘　　要：针对催化剂固定态浅槽式反应器,将溶液的吸光系数及光的透过距离与反应速率常数进行了关联,速率常数与吸光系数和透过距离呈指数函数关系.考虑反应器在实际应用中的需要,在反应器总占地面积和单位时间处理量一定的前提下,进一步将反应器的流出浓度与反应槽的单元截面积和速率常数同时进行了关联,说明在处理目标物不变的条件下,流出浓度与溶液深度并不是单一的某一函数关系,而是一个复合函数关系.本文把TiO2负载于浅槽式反应器器壁,进行亚甲基蓝太阳能光催化脱色实验,经实验证实以上推导是正确的,可以为太阳光光催化反应器设计提供一定的理论依据.In this paper, the dynamics of the slot solar photocatalytic reactor with catalyst fixed on the wall was studied. Resuits indicated that the relationship is of exponential function between reaction rate constant k and light absorption coefficient α, passing distance L, While fixing the projection area and handling capacity per unit time of the reactor, the relationship of the effluent concentration and the depth of solution in the reactor is a complex function of quadratic function and exponential function. The effluent concentration reduces first and increases later with the increment of depth of solution in the reactor. The dynamics was confirmed with experiments of photocatalytic decolourization of methylene blue.

关 键 词：太阳光 光催化 槽式反应器 动力学 

分 类 号：X703.1[环境科学与工程—环境工程]