酞菁钴的合成、性能及应用研究

Synthesis,property and application of cobalt phthalocyanines

文章比较了单核、双核、三核磺化酞菁钴(s-CoPc、b-CoPc、t-CoPc)和1,2-二羧基酞菁钴(CobcPc)的UV-Vis、IR光谱,分析了s-CoPc/CobcPc和顺二硫氰根-双(2,2’-联吡啶-4-羧酸-4’-羧酸四丁基铵)合钌(Ⅱ)(N719)协同敏化的纳米Ti O2薄膜的UV-Vis吸收性能,利用循环伏安法研究了s-CoPc、CobcPc的氧化还原行为。结果表明,s-CoPc在Q带的最大吸收峰位于655 nm,b-CoPc、t-CoPc最大吸收峰分别红移至658 nm和663 nm,先吸附N719后吸附s-CoPc的纳米Ti O2薄膜以及共吸附CobcPc和N719的纳米Ti O2薄膜的协同敏化效果好。

Single nuclear, binuClear, trinuclear cobalt phthalocyanine sulfonates （s-CoPc, b-CoPc, t- CoPc） and bicarboxyl cobalt phthalocyanine（CobcPc） were prepared by the solid-phase process. Their UV-Vis and IR spectra were compared. The TiO2 film which was co-sensitized by s-CoPc/CobcPc and cis-dithiocyanate-N, N＇-bis-（4-carboxylate-4-tetrabutylammonium carboxylate-2,2＇-bipyridine） ruthenium （ Ⅱ） （N719） were characterized by UV-Vis spectra. The redox behavior of s-CoPc and CobcPc was investigated by cyclic voltammetry. It was found that the λmax of b-CoPc and t-CoPc shifted from 655 nm of s-CoPc to 658 nm and 663 nm, respectively. The co-sensitized TiO2 films using s-CoPc/Cob-cPc and N719 displayed a broad spectral response over the entire visible spectrum.