Mesoporous silica particles (MSPs) prepared by diol-functionalized natural rubber (ENR50-diol) and cationic surfactant (CTAB) dual templates

Abstract

Diol-functionalized natural rubber (ENR50-diol) and Cetyltrimethyl ammonium bromide (CTAB) were used as dual templates for the synthesis of mesoporous silica particles (MSPs) through the modified StÖber method. The MSPs were synthesized using ENR50-diol/CTAB dual templates with 22% and 32% degree of diol, compared using only ENR50-diol (without CTAB) and using only CTAB. ENR50-dio/CTAB dual template provided MSPs with two different mesopore structures, i.e., large mesopores with pore size ~50 nm obtained from ENR50-diol and the small mesopores 2 - 4 nm generated from CTAB. The specific surface area of MSPs particles with using ENR50/CTAB dual templates were obtained in order of magnitude from ~20 to 268.50 m²/g and the pore volume from 0.04 to 0.25 cm³/g.