A series of Pt nanoparticles (with size of 3-4 nm) decorated CdS nanorods were prepared via a simple solvothermal method. The samples were then used for photocatalytic selective oxidation (SO) of aromatic alcohols and reduction (SR) of nitroarenes in one reaction system. The platinized samples showed enhanced activity for the conversions than pristine CdS as Pt can serve as e– trapping and reaction sites, by which the recombination of photoinduced charge carriers can be suppressed and the adsorption of reactants and the SR of nitroarenes can be promoted. The sample loaded with only of 0.03% Pt showed the highest performance and, after irradiation for 4 h, the conversion of p-methoxybenzyl alcohol and nitrobenzene are as high as 92.7% and 94.8%, while the yield of p-methoxybenzaldehyde and aniline are 80.5% and 36.0%. The activities are about 2.0 times higher than that of CdS. The coupling reaction mechanism for the SO of aromatic alcohols to aldehydes and SR of nitroarenes to anilines in the reaction system was finally proposed.

通过简单的溶剂热法制备了一系列装饰有Pt纳米颗粒（尺寸为3-4 nm）的CdS纳米棒。然后在一个反应​​系统中将样品用于芳香醇的光催化选择性氧化（SO）和硝基芳烃的还原（SR）。镀铂样品显示出比原始CdS更高的转化活性，因为Pt可以用作电子捕获和反应位点，从而可以抑制光诱导电荷载体的重组，并可以促进反应物的吸附和硝基芳烃的SR。仅负载0.03％Pt的样品表现出最高的性能，辐射4 h后，对甲氧基苄醇和硝基苯的转化率分别高达92.7％和94.8％，而对甲氧基苯甲醛和苯胺的产率为80.5％和36.0％。活动约为2。比CdS高0倍。最终提出了反应体系中芳族醇的SO与醛的偶联反应机理和硝基芳烃的SR与苯胺的偶联反应机理。