摘要
用ESR方法研究了二氧化钌对硫化镉超微粒子界面光诱导电子转移及光催化性能的影响 ,结果表明 ,与单一的硫化镉胶粒体系的作用不同 ,在二氧化钌的存在下的CdS/RuO2 体系 ,可对某些底物体系的光反应有明显的增强催化的作用 ,而对另一些体系则产生抑制或负催化的作用 .此复合体系的协同作用也与单纯二氧化钌的催化作用有所不同 。
The influence of ruthenium dioxide on the photoinduced electron transfer and photocatalysis character for cadmium sulfide superfine particle system by means of ESR method. Results show that it is obviously different from the case of single CdS colloid system, in the presence of ruthenium dioxide, CdS/RuO\-2 binary system can effectly enhance photocatalysis reactions of some substrates; but for other substrates, their interfacial photoreactions may be prohibited obviously or completely, namely, RuO\-2 plays a role of negative catalysis. Therefore, under different conditions, the promotion and negative catalysis characters of the CdS/RuO\-2 binary system are conducive to control and regulation for the interfacial photoreaction processes.
出处
《波谱学杂志》
CAS
CSCD
北大核心
2001年第3期201-207,共7页
Chinese Journal of Magnetic Resonance
基金
国家基础研究发展规划项目 (G1 9980 1 0 1 0 0 )
国家自然科学基金资助项目 (No:3 9890 3 90 )
