Abstract
Monodispersed amphiphilic zeolite/mesosilica composite material TS-1@KCC-1 (TK), which could stabilize Pickering emulsions for the benzene/H2O2 system, has been synthesized, and its physicochemical properties have been investigated in detail. The amphiphilic TK catalyst displayed a higher catalytic activity under Pickering interfacial catalysis (PIC) than under phase-boundary catalysis (PBC) and conventional reaction conditions in the hydroxylation of benzene by hydrogen peroxide without cosolvent and under static conditions. Under optimized conditions, a TS-1@KCC-1 catalyst grafted with octyl chains (2.42 wt %) could afford an interfacial activity of 1.1 mol (Ti-mol)-1. Moreover, PIC reaction conditions exhibited an excellent thermal stability and good reusability.
| Original language | English |
|---|---|
| Pages (from-to) | 25377-25384 |
| Number of pages | 8 |
| Journal | Journal of Physical Chemistry C |
| Volume | 119 |
| Issue number | 45 |
| DOIs | |
| State | Published - 12 Nov 2015 |