학술논문
Biosynthesized Au/TiO2@SBA-15 catalysts for selective oxidation of cyclohexane with O2
Document Type
Article
Source
Korean Journal of Chemical Engineering, 35(4), 217, pp.853-858 Apr, 2018
Subject
Language
English
ISSN
1975-7220
0256-1115
0256-1115
Abstract
A variety of TiO2@SBA-15 supporters with various TiO2 loadings were synthesized using a facile sol-gel method. Gold (Au)-based catalysts were prepared with an environmentally benign and economical bioreduction method via Cacumen Platycladi (CP) leaf extract and immobilized on various TiO2@SBA-15 supporters with different TiO2 loadings. The as-prepared biosynthesized Au catalysts were applied in the liquid-phase cyclohexane oxidation. The results showed that the Au nanoparticles were well-dispersed on TiO2@SBA-15, and the Au existed as Au0. These biosynthesized Au catalysts are promising for cyclohexane oxidation, achieving a turnover frequency up to 3,426 h1 with a 14.1% cyclohexane conversion rate.