Mn^(2+)掺杂ZnIn_2S_4多孔光催化剂催化产氢性能研究  

Photocatalytic Hydrogen Evolution over Mn^(2+) Doped ZnIn_2S_4 Porous Photocatalyst under Visible Light Irradiation

作　　者：李锦书[1] 白雪峰[1,2] 

机构地区：[1]黑龙江大学化学化工与材料学院,黑龙江哈尔滨150080 [2]黑龙江省科学院石油化学研究院,黑龙江哈尔滨150040

出　　处：《化学与粘合》2011年第2期1-4,29,共5页Chemistry and Adhesion

基　　金：国家863计划项目(编号:2007AA03z337);黑龙江省杰出青年基金项目(编号J:C200615);黑龙江省国际合作项目(编号:WC05A13);哈尔滨市对俄科技合作项目(编号:2006AA4BE053)

摘　　要：以溴代十六烷基吡啶(CPBr)为模板剂,采用水热法制备出系列Mn2+掺杂的ZnIn2S4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ZnIn2S4光催剂的形貌结构和可见光催化产氢性能的影响。实验结果表明,Mn2+掺杂影响催化剂的晶体结构及其微观形貌,掺杂后的ZnIn2S4光催化剂产氢活性显著提高,其中Mn2+(0.5%)-ZnIn2S4光催化剂表现出最优产氢活性,产氢速率达到3286.4μmol/(h·g)。A series of Mn^2＋ doped ZnIn2S4 porous photocatalysts were synthesized via a hydrothermal process using cetylpyridinium bromide （CPBr） 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）. The influences of concentration of Mn^2＋ doping on the morphology and photocatalytic activity of ZnIn2S4 photocatalysts were investigated. The results demonstrated that Mn^2＋ doping had great effects on the crystal structure and micro-morphology. The photocatalytic activity of ZnIn2S4 was enhanced by Mn^2＋ doping, and the highest rate of hydrogen evolution of 3286.4μmol/（ h·g） over Mn^2＋（0.5% ）-ZnIn2S4 was observed.

关 键 词：ZnIn2S4 Mn^2+掺杂 光催化 水热 

分 类 号：TQ426.94[化学工程]