易回收型光催化剂的研究进展  

Research Progress on Recyclable Photocatalyst

作　　者：邓浩 周琦 李强 李乐怡 章思羽 王齐[1] DENG Hao;ZHOU Qi;LI Qiang;LI Leyi;ZHANG Siyu;WANG Qi(School of Environmental Science and Engineering,Zhejiang Gongshang University,Hangzhou 310018,China)

机构地区：[1]浙江工商大学环境科学与工程学院,浙江杭州310018

出　　处：《聊城大学学报（自然科学版）》2024年第6期10-28,共19页Journal of Liaocheng University:Natural Science Edition

基　　金：国家自然科学基金项目(22276168)资助。

摘　　要：光催化技术因其在能源转换和环境治理中的应用潜力而备受关注。然而,传统粉末状光催化剂存在光吸收能力有限、光生载流子分离困难、催化剂难以回收利用等缺点,阻碍了光催化技术的广泛应用。为满足工程应用需求,催化剂需具备结构稳定、机械强度和易回收等特性,而成型制备技术可实现此目标。通过特定的成型制备技术,催化剂可获得特定形状和结构,提高光吸收性能,进而增强光催化反应的活性和效率;此外,还可以赋予催化剂良好的结构稳定性和机械强度,能够长期稳定运行。催化剂的易回收特性有助于降低成本、提高可持续性。本文综述了易回收型光催化剂的成型制备技术和应用进展,分析了当前面临的挑战,为光催化技术的实际应用提供借鉴。Photocatalysis technology has garnered significant attention owing to its potential applications in energy conversion and environmental governance.Nevertheless,the constraints of traditional powder photocatalysts,such as restricted light absorption capacity,arduous separation of photogenerated carriers,and the difficulty in catalyst recycling,impede the broad application of photocatalysis technology.To meet the requirements of engineering applications,catalysts are required to possess the characteristics of structural stability,mechanical strength,and facile recovery.The molding preparation technology can fulfill this objective.Through catalyst forming,specific shapes and structures can be acquired,the light absorption performance can be enhanced,and the activity and efficiency of the photocatalytic reaction can be boosted.Additionally,the catalyst prepared by molding also exhibits excellent structural stability and mechanical strength,and is capable of operating stably for an extended period.The easy recovery of the formed catalyst contributes to cost reduction and improvement of sustainability.In this work,the preparation technology and application progress of recyclable photocatalysts are reviewed,and the current challenges are analyzed,providing reference for the practical application of photocatalysis technology.

关 键 词：光催化剂 可回收 凝胶 膜 三维固态载体 

分 类 号：O643.3[理学—物理化学]