Excellent Photocatalysis of HF-Treated Silicon Nanowires
Mingwang Shao,*,? Liang Cheng,? Xiaohong Zhang,? Dorthy Duo Duo Ma,§ and Shuit-tong Lee*,§
Functional Nano & Soft Materials Laboratory (FUNSOM), Soochow University, Suzhou 215123, P. R. China, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101, and Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, China
HF-treated silicon nanowires exhibited excellent photocatalysis, which were even better than some noble metal-modified ones, such as palladium, gold, silver, and rhodium. This phenomenon was critical in the application of silicon-related materials as they are normally employed as a catalyst carrier. These HF-treated silicon nanowires were also stable in solution over 1 week; consequently, a possible explanation for the stability was proposed.