纳米硫化镉的改性及在光催化领域的研究进展  

Modification of Nano-sized Cadmium Sulfide and Its Research Progress on Photocatalysis

作　　者：王德钰 郭嘉[1] WANG De-yu;GUO Jia(Key Laboratory of Green Chemical Process Ministry of Education,Wuhan Institute of Technology,Hubei Wuhan 430205,China)

机构地区：[1]武汉工程大学绿色化工过程教育部重点实验室,湖北武汉430205

出　　处：《广州化工》2022年第14期40-43,共4页GuangZhou Chemical Industry

摘　　要：硫化镉(CdS)因其对可见光的强吸收、合适的能带能级和优异的电子电荷传输特性而得到了广泛应用,例如光催化产氢和污染物的降解等。但是纯CdS在光照下是不稳定的,在光催化反应过程中,在CdS表面可能发生光腐蚀或光溶解,这些缺点限制了CdS在光催化方面的应用,因此需要对CdS进行改性以克服其缺点,如CdS与其他半导体或聚合物杂化、引入助催剂、改变CdS的形貌等。本文对以上几种改性方法作了论述,并就过渡金属掺杂对CdS基光催化剂的影响做了简要说明。最后,展望了纳米结构CdS和基于CdS的纳米复合材料在光催化方面的发展前景和面临的挑战。Cadmium sulfide(CdS)has been widely used because of its strong absorption of visible light,appropriate energy band level and excellent electronic charge transfer characteristics,such as photocatalytic hydrogen production and pollutant degradation.However,pure CdS is unstable under light.In the process of photocatalytic reaction,corrosion or dissolution may occur on the surface of CdS.These shortcomings limit the application of CdS in photocatalysis.Therefore,it is necessary to modify CdS to overcome its shortcomings,such as hybridization of CdS with other semiconductors or polymers,introduction of promoters,changing the morphology of CdS,etc.The above modification methods were discussed,and the influence of transition metal doping on CdS based photocatalysts was briefly explained.Finally,the development prospects and challenges of nanostructured CdS and CdS based nanocomposites in photocatalysis were prospected.

关 键 词：光催化 硫化镉改性 助催剂 

分 类 号：TB381[一般工业技术—材料科学与工程]