摘要
目前半导体光催化处理废水已成为目前解决环境污染的有效途径之一。红磷作为一种非金属新型半导体光催化剂,具有价格低廉、低毒、易得、化学性质稳定、可见光响应范围广、带隙可调等优点。但存在光催化过程中稳定性较低,电子与空穴利用率不高等问题,因此,制备高效稳定的红磷基复合材料在实际应用中有着非常重要的意义。本文简述了红磷的结构,红磷基降解有机污染物的机理,详细总结了近几年红磷基在废水处理方面的研究现状,归纳了不同红磷基光催化效果,并通过从红磷结构、尺寸、异质结、协同作用对不同红磷基复合材料的光催化效率进行了分析。提出未来的研究方向应从改进红磷的制备方法,加强对晶型红磷以及红磷自身氧化机理等方面进行深入研究。
At present semiconductor photocatalytic treatment of wastewater has become one of the effective ways to solve environmental pollution.As a new type of non-metallic semiconductor photocatalyst,red phosphorus has the advantages of low price,low toxicity,easy availability,stable chemical properties,wide visible light response range,and adjustable band gap.However,there are some problems such as low stability and low utilization rate of electrons and holes in the photocatalytic process,Therefore,to prepare the efficient and stable red phosphorus-based composites is great significant for its in practical applications.In this paper,the structure of red phosphorus,the mechanism of red phosphorus base to degrade organic pollutants are briefly described.The research status of red phosphorus-based composites in wastewater treatment in recent years is summarized in detail,and the photocatalytic effects of different red phosphorus-based composites are summarized,and the photocatalytic efficiency of different red phosphorus-based composites was analyzed from the structure,size,heterojunction and synergy of red phosphorus.It is proposed that the future research direction is to improve the preparation method of red phosphorus,strengthen the in-depth research on the crystalline red phosphorus and the oxidation mechanism of red phosphorus itself.
作者
吕武华
唐利平
陈咨含
段汶江
曾艳梅
LÜWuhua;TANG Liping;CHEN Zihan;DUAN Wenjiang;ZENG Yanmei(Guang'an Vocational and Technical College,The New Material and Chemical Engineering Institute,Guang'an 638000,China)
出处
《水处理技术》
CAS
CSCD
北大核心
2024年第4期12-17,48,共7页
Technology of Water Treatment
基金
四川省科技厅科技创新苗子工程重点项目(2022JDRC0092)
四川省大学生创新创业项目(S202113814003)
广安职业技术学院校级项目(GAZYKY-2023A06)
绿色化工科研创新团队(GAZYKYTD-05)。
关键词
红磷
光催化
可见光
降解有机物
red phosphorus
photocatalytic
visible light
degradation of organic pollutants
