化工冶金
化工冶金
화공야금
ENGINEERING CHEMISTRY & METALLURGY
2000年
2期
113-117
,共5页
张莉%高恩勤%王艳芹%李卫华%杨迈之%蔡生民
張莉%高恩勤%王豔芹%李衛華%楊邁之%蔡生民
장리%고은근%왕염근%리위화%양매지%채생민
光敏化%掺杂TiO2纳米粒子%光电化学%复合半导体%纳米多孔膜电极
光敏化%摻雜TiO2納米粒子%光電化學%複閤半導體%納米多孔膜電極
광민화%참잡TiO2납미입자%광전화학%복합반도체%납미다공막전겁
photosensitization%doped TiO2 nanometerparticle%photoelectrochemistry%composite semiconductor%nanoporous filmelectrodes
采用水热法合成了Zn2+离子掺杂的TiO2纳米粒子(掺杂量0.5%),并用光电化学方法研究了Ru(bpy)2(NCS)2(bpy=2,2'-bipydine-4,4'-dicarboxylicacid)分别敏化Zn2+掺杂的TiO2电极和PbS/Zn2+-TiO2复合半导体纳米多孔膜电极的光电化学行为.实验证明Ru(bpy)2(NCS)2敏化PbS/Zn2+-TiO2复合半导体纳米多孔膜电极比单独敏化Zn2+-TiO2电极的光电效果好,且敏化电极的光电流产生的起始波长都比Zn2+-TiO2电极向长波方向移动;在360 600 nm范围内,Ru(bpy)2(NCS)2敏化PbS/Zn2+-TiO2复合半导体纳米多孔膜电极比单独敏化Zn2+掺杂TiO2电极的效果更好.
採用水熱法閤成瞭Zn2+離子摻雜的TiO2納米粒子(摻雜量0.5%),併用光電化學方法研究瞭Ru(bpy)2(NCS)2(bpy=2,2'-bipydine-4,4'-dicarboxylicacid)分彆敏化Zn2+摻雜的TiO2電極和PbS/Zn2+-TiO2複閤半導體納米多孔膜電極的光電化學行為.實驗證明Ru(bpy)2(NCS)2敏化PbS/Zn2+-TiO2複閤半導體納米多孔膜電極比單獨敏化Zn2+-TiO2電極的光電效果好,且敏化電極的光電流產生的起始波長都比Zn2+-TiO2電極嚮長波方嚮移動;在360 600 nm範圍內,Ru(bpy)2(NCS)2敏化PbS/Zn2+-TiO2複閤半導體納米多孔膜電極比單獨敏化Zn2+摻雜TiO2電極的效果更好.
채용수열법합성료Zn2+리자참잡적TiO2납미입자(참잡량0.5%),병용광전화학방법연구료Ru(bpy)2(NCS)2(bpy=2,2'-bipydine-4,4'-dicarboxylicacid)분별민화Zn2+참잡적TiO2전겁화PbS/Zn2+-TiO2복합반도체납미다공막전겁적광전화학행위.실험증명Ru(bpy)2(NCS)2민화PbS/Zn2+-TiO2복합반도체납미다공막전겁비단독민화Zn2+-TiO2전겁적광전효과호,차민화전겁적광전유산생적기시파장도비Zn2+-TiO2전겁향장파방향이동;재360 600 nm범위내,Ru(bpy)2(NCS)2민화PbS/Zn2+-TiO2복합반도체납미다공막전겁비단독민화Zn2+참잡TiO2전겁적효과경호.
Zn2+-doped TiO2 nanoparticles were prepared with thehydrothermal method. The photoelectrochemical properties of aZn2+-doped TiO2 nanoporous-film electrode sensitized byRu(bpy)2(NCS)2 and Zn2+-TiO2/PbS compositesemiconductor nanoporous films sensitized by Ru(bpy)2(NCS)2 werestudied respectively. Doping, sensitizing andforming composite semiconductor particles cause red-shifts in thephotoelectric action spectra. The efficiency of conversion of light toelectricity for the Zn2+-TiO2/PbS composite semiconductornanoporous films is greatly improved and maximized.
