Liang Ling-Yi, Kung Yu-Han, Hsiao Vincent K S, Chu Chih-Chien
Department of Medical Applied Chemistry, Chung Shan Medical University, Taichung 40201, Taiwan.
Department of Applied Materials and Optoelectronic Engineering, National Chi Nan University, Nantou 54561, Taiwan.
Nanomaterials (Basel). 2023 Jun 5;13(11):1805. doi: 10.3390/nano13111805.
In this study, we investigated the use of porous silicon (PSi) fabricated using metal-assisted chemical etching (MACE) as a substrate for the deposition of Au nanoparticles (NPs) for the reduction of nitroaromatic compounds. PSi provides a high surface area for the deposition of Au NPs, and MACE allows for the fabrication of a well-defined porous structure in a single step. We used the reduction of -nitroaniline as a model reaction to evaluate the catalytic activity of Au NPs on PSi. The results indicate that the Au NPs on the PSi exhibited excellent catalytic activity, which was affected by the etching time. Overall, our results highlighted the potential of PSi fabricated using MACE as a substrate for the deposition of metal NPs for catalytic applications.
在本研究中，我们研究了使用金属辅助化学蚀刻（MACE）制备的多孔硅（PSi）作为沉积金纳米颗粒（NPs）的基底，用于还原硝基芳香化合物。PSi为金纳米颗粒的沉积提供了高表面积，并且MACE允许在一步中制备出结构明确的多孔结构。我们以对硝基苯胺的还原作为模型反应，来评估PSi上金纳米颗粒的催化活性。结果表明，PSi上的金纳米颗粒表现出优异的催化活性，其受到蚀刻时间的影响。总体而言，我们的结果突出了使用MACE制备的PSi作为沉积金属纳米颗粒用于催化应用的基底的潜力。
