论文部分内容阅读
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＇－ｄｉｃａｒｂｏｘｙｌｉｃ ａｃｉｄ）分别敏化 Ｚｎ~２＋掺杂的 ＴｉＯ_２电极和 ＰｂＳ／Ｚｎ~２＋－ＴｉＯ_２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＋－ＴｉＯ_２复合半导体纳米多孔膜电极比单独敏化 Ｚｎ~２＋－ＴｉＯ_２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＋－ＴｉＯ_２复合半导体纳米多孔膜电极比单独敏化Ｚｎ~２＋掺杂ＴｉＯ~２电极的效果更好．
The Zn2 + doped TiO2 nanoparticles (0.5% doping amount) were synthesized by hydrothermal method. The photocatalytic activity of Ru (bPy) 2 (NCS) 2 (bpy-2,2’-bipydine-4 , 4’-dicarboxylic acid) were respectively sensitized with Zn ~ 2 + -doped TiO_2 electrode and PbS / Zn ~ 2 + -TiO_2 composite semiconducting nanoporous membrane electrode. Experiments show that the photoelectric effect of Ru (bpy) 2 (NCS) 2-sensitized PbS / Zn2 + -TiO2 composite semiconducting nanoporous membrane electrode is better than that of the sensitized Zn2 + -TiO2 electrode alone and the initiation of photocurrent generation of the sensitized electrode The wavelength of which is longer than that of Zn2 + -TiO2 electrode in the direction of longwave. In the range of 360-600 nm, the electrode of Ru (bpy) 2 (NCS) 2 sensitized PbS / Zn2 + -TiO2 composite semiconducting nanoporous membrane is more sensitive than the Zn2 + Hybrid TiO ~ 2 electrode is better.