Synthesis, characterization of bimetallic V-Fe-SBA-15 and its catalytic performance in the hydroxylation of phenol.
A series of V-Fe incorporated-SBA-15 has been synthesized by adjustment of the pH value of the gel mixtures and characterized by using XRD, N2-adsorption, ICP, FT-IR, Raman, and UV-vis techniques. Results indicated that all samples exhibited typical hexagonal arrangement of mesoporous structure with high surface areas and the heteroatoms were probably incorporated into the framework of SBA-15. Catalytic performances of the obtained materials were evaluated in the hydroxylation of phenol with H2O2, and the catalytic results revealed that the selectivity for catechol (CAT) and hydroquinone (HQ) could be controlled by adjusting the contents of V and Fe in the samples, and an appropriate n(V)/n(Fe) mol ratio in SBA-15 could approach the optimal catalytic performance.
Gao
Fei
F
Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, PR China.
Zhang
Yanhua
Y
Wang
Chunling
C
Wu
Cheng
C
Kong
Yan
Y
Zhao
Bin
B
Dong
Lin
L
Chen
Yi
Y