金属柱撑黏土催化非均相Fenton技术的研究

金属柱撑黏土(PILC)能够在保证Fenton法对有机污染物的去除功效的同时,较好地克服Fenton法催化剂易流失、适用pH范围小等缺点.介绍了金属柱撑黏土制备的新进展,总结了柱撑黏土单独催化或与紫外等技术联合催化非均相Fenton反应降解水体有机污染物的研究成果,分析了柱撑黏土催化非均相Fenton反应的机理.针对目前研究仍然存在的问题,结合实际应用的需求,提出了今后工作中一些值得关注的方向.

Application of pillared clay in catalytic heterogeneous Fenton degradation of organic pollutant in wastewater

When pillared clay(PILC) is used as the catalyst in Fenton oxidation process,the shortcomings existing in Fenton method such as catalysts easily loss,low pH value range are resolved,while maintaining the removal rate of organic pollutant maintained in Fenton method.The new advances in PILC are reviewed in this paper.The studies on PILC,alone or combined with other techniques such as ultraviolet ones applied in catalytic heterogeneous Fenton of organic pollutants in wastewater,are summarized.The catalytic mechanism of PILC when used as the catalyst in heterogeneous Fenton process is analyzed.Aiming at the current problems,its development direction in future studies is proposed combined with the actual demands.