塑料光催化降解回收处理技术的研究进展  

Research Progress of Photocatalytic Degradation and Recycling of Plastics

作　　者：赵慧莹 李伟[1] 刘丰颉 熊健[1] 吕学斌[1] ZHAO Hui-ying;LI Wei*;LIU Feng-jie;XIONG Jian;LÜXue-bin(School of Ecology and Environment,Xizang University,Lhasa 850000,China)

机构地区：[1]西藏大学生态环境学院,西藏拉萨850000

出　　处：《塑料科技》2024年第7期141-146,共6页Plastics Science and Technology

基　　金：西藏自治区科技计划项目(XZ202101ZY0012G、XZ202202YD0027C、XZ202301ZY0020G);西藏大学2023年国家级大学生创新训练项目(202310694014);中央支持地方高校专项资金(藏财预指(2023)01、(2024)01);西藏大学人才发展激励计划——青年学者项目。

摘　　要：为减轻塑料废弃物所带来的环境污染,对塑料光催化降解回收处理方式进行研究,从而利用太阳能光引发和光催化的降解机理将塑料转化为水和二氧化碳或进一步转化为氢气燃料和高值化学品。文章介绍催化剂特性、塑料和降解条件对光催化降解的影响,总结不同种类的无机金属、非金属材料以及有机-无机复合材料光催化剂在光催化降解回收处理中的应用,旨在通过催化剂的改性、与电催化、热催化、生物催化协同作用提升光催化效率。文章指出光催化降解塑料回收处理技术在预处理、处理后存在的问题,为废弃塑料的回收处理提供可靠依据和研究方向。In order to reduce the environmental pollution caused by plastic waste,research is being conducted on the photocatalytic degradation and recycling of plastics,utilizing the degradation mechanism of solar photoinitiation and photocatalysis to convert plastics into water and carbon dioxide,or further into hydrogen fuel and high-value chemicals.The article introduces the effects of catalyst characteristics,plastics,and degradation conditions on photocatalytic degradation,summarizes the applications of different types of inorganic metal,non-metal materials,and organic-inorganic composite photocatalysts in photocatalytic degradation and recycling,and aims to improve photocatalytic efficiency through catalyst modification and synergistic effects with electrocatalysis,thermocatalysis,and biocatalysis.The article points out the problems in the pre-treatment and post-treatment of photocatalytic degradation plastic recycling technology,providing a reliable basis and research direction for the recycling and treatment of waste plastics.

关 键 词：塑料降解 光催化降解 处理技术 协同处理 

分 类 号：X705[环境科学与工程—环境工程]