Author： Chen Tian
Publisher： Springer Publishing Company
ISSN： 1380-2224
Source： Journal of Porous Materials, Vol.20, Iss.4, 2013-08, pp. : 927-936
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
Novel mesostructured silicas with large accessible disordered pores (LPMS) were synthesized via a hydrothermal recrystallization following the evaporation induced self-assembly process by using amphiphilic diblock copolymers poly (ethylene oxide)-b-poly (ε-caprolactone) (PEO-b-PCL) as the template and tetraethyl orthosilicate as the silica source. PEO-b-PCL was synthesized by using versatile ring-opening polymerization method. The prepared LPMS samples were characterized using transmission electron microscopy and N2 sorption isotherms measurements. Meanwhile, the effect of contact time, initial dye concentration, and pH were studied on the adsorption of methyl orange onto LPMS. The isotherms and kinetics of adsorption were also studied. Results obtained from this study indicated that Langmuir model was more suitable to describe the methyl orange adsorption than Freundlich model. The adsorption kinetics was found to follow the pseudo-second-order kinetic model.
Related content
Access to resources
Recommend
