Mn^(2+)掺杂多孔CdIn_2S_4光催化剂的制备及催化制氢性能  

Synthesis and photocatalytic hydrogen production property over Mn^(2+) doped porous CdIn_2S_4 photocatalyst under visible light irradiation

作　　者：吕宏飞[1,2] 李锦书[3] 白雪峰[1,2] 

机构地区：[1]哈尔滨理工大学化工与环境工程学院,哈尔滨150040 [2]黑龙江省科学院石油化学研究院,哈尔滨150040 [3]黑龙江大学化学化工与材料学院,哈尔滨150080

出　　处：《材料科学与工艺》2011年第6期138-142,共5页Materials Science and Technology

基　　金：国家高技术研究发展计划资助项目(2007AA03z337);黑龙江省杰出青年基金资助项目(JC200615)

摘　　要：为提高光催化剂的比表面积,以十二烷基磺酸钠(SDS)为模板剂,采用水热法制备出系列Mn2+掺杂的CdIn2S4多孔光催化剂.通过XRD、FESEM、UV-Vis、XPS等分析手段对催化剂进行了表征,考察了掺杂Mn2+浓度对多孔CdIn2S4光催剂的形貌结构和可见光催化产氢性能的影响.结果表明,Mn2+掺杂影响催化剂的晶体结构及其微观形貌,掺杂后的CdIn2S4光催化剂产氢活性显著提高,其中Mn2+(0.7%)-CdIn2S4光催化剂表现出最优产氢活性,产氢速率达到1296.2μmol/(h.g).To improve the specific surface area of photocatalysts,a series of Mn^2＋ doped porous CdIn2S4 photocatalysts with good optical property were synthesized via a facile hydrothermal process using sodium dodecyl sulfate（SDS） as template.The above-prepared photocatalysts were characterized by X-ray diffraction（XRD）,field emission scanning electron microscopy（FESEM）,UV-Vis diffusive reflectance spectroscopy（DRS） and X-ray photoelectron spectroscopy（XPS）,and the influences of concentration of Mn^2＋doping on the morphology and photocatalytic activity of CdIn2S4photocatalysts were investigated.The results demonstrated that Mn^2＋ doping had great effects on the crystal structure and micro-morphology.The photocatalytic activity of CdIn2S4was enhanced by Mn^2＋ doping,and the highest rate of hydrogen evolution of 1296.2 μmol/（h·g） over Mn^2＋（0.7%）-CdIn2S4 was observed.

关 键 词：多孔CdIn2S4 Mn2+掺杂 光催化 水热合成 

分 类 号：TQ426.6[化学工程]