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考察了担载各种不同过渡金属的CdS粉末光催化剂的脱氢活性,得出活性顺序为Pd(5％)/CdS(化学镀)>Pt(5％)/CdS(机械混合或化学镀)>Rh_2O_3(1％)/CdS(机械混合),否定了Cu和Ag作为主催化组分的可能性,在Pt/CdS体系中,Pt的最佳担载量为5％左右,研究了包括第二金属组分作为可能的促进剂的双金属组分M_1+M_2/Cds光催化剂的脱氢活性,肯定了Cu和Ag是Pt/CdS和Pd/CdS体系的良好促进剂,有明显助催作用.实验证明Pt(5％)+Cu(5％)/CdS为这两种金属组分的最佳匹配量。
The dehydrogenation activity of CdS powder photocatalysts carrying different transition metals was investigated. The results showed that the active order of Pd (5%) / CdS (electroless plating)> Pt (5%) / CdS (mechanical mixing or electroless plating) > Rh_2O_3 (1%) / CdS (mechanical mixing), negating the possibility of Cu and Ag as the main catalytic components. The optimal loading of Pt in Pt / CdS system is about 5% Dehydrogenation activity of the bimetallic component M 1 + M 2 / Cds photocatalyst with two metal components as potential promoters affirmed that Cu and Ag are good promoters for Pt / CdS and Pd / CdS systems and have obvious promoters Experiments show that Pt (5%) + Cu (5%) / CdS is the best match between the two metal components.