核壳型PS/CdS复合催化剂的制备及其光催化性能  

Synthesis and Photocatalysis Activity of PS/CdS Core-Shell Structure Composite Photocatalyst

作　　者：王涵[1,2] 许倩[1] 郑星 韩文清[2] 江波[1] 孙冠华[1] 钟彩霞[2] 尹华承 郑经堂[1] 

机构地区：[1]中国石油大学(华东)重质油国家重点实验室,山东青岛266580 [2]包头轻工职业技术学院,内蒙古包头014045 [3]北京中能环科技术发展有限公司,北京100080

出　　处：《合成化学》2014年第6期725-729,738,共6页Chinese Journal of Synthetic Chemistry

基　　金：国家自然科学基金资助项目(21376268;21176260);国家重点基础研究发展计划(973)资助项目(2011CB605703);泰山学者资助计划(ts20130929)

摘　　要：以聚苯乙烯(PS)微球为模板,聚乙烯比咯烷酮为偶联剂,用超声化学法合成了核壳型PS/CdS纳米复合光催化剂(1),其结构,形貌和光催化性能经FT-IR,UV-Vis,XRD,SEM,TEM和EDS和表征。考察了反应时间(t)和物料比r[n(S2-)∶n(Cd2+)]对1rt形貌的影响。在最佳反应条件[Cd(Ac)228mmol,r=1.4,于室温超声反应3.0h]下制备的11.43.0具有明显的核壳结构,颗粒均匀呈球形,分散性好,平均粒径约320nm。11.43.0光催化罗丹明(RhB)降解反应结果表明,70min脱色率达到100%。A core-shell structure composite photocatalysts（ PS / CdS,1） was synthesized by facile ultrasonic method,using PS as the model and PVP as the coupling agent. The structures and photocatalysis activity were characterized by UV-Vis,FT-IR,XRD,SEM,TEM and EDS. Effects of reaction time and mole ratio on the microstructure of 1 were investigated. The optimum reaction conditions of 1 were as follows：Cd（ Ac）2was 28 mmol,n（ Cd^2 ＋） ∶ n（ S^2-） =1.0 ∶ 1.4 and reaction time was 3 h. The results of photocatalyzing Rh B degradation indicated that the decolourization ratio was 100% after 70 min.

关 键 词：核-壳结构 CDS 超声化学法 合成 光催化性能 

分 类 号：O631.3[理学—高分子化学] TQ426.6[理学—化学]