| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 54077 | Catalysis Today | 2014 | 8 Pages |
•TiO2/calcium alginate membrane was prepared by cross-linking the mixture of sodium alginate and TiO2 in aqueous solution.•MO imprinted membrane (MIP) was synthesized using TiO2/calcium alginate as the matrix, silanes as the monomers.•The adsorption capacity had significant effect on the degradation of MO.•MIP degradated more MO than NIP did and gave good selectivity for the photodegradation of MO.
In this paper, molecularly imprinted TiO2/calcium alginate (T/CA) membrane was synthesized by using T/CA as supporting matrix, ethylenetri(β-methoxy) ethyoxysilane (KH-570) and γ-amidopropyltri- ethyoxysilane (KH-550) as functional monomers and methyl orange (MO) as template. The T/CA membranes and MO imprinted T/CA composite membranes were characterized by SEM, FT-IR and XRD. The adsorption and photocatalytic degradation of MO imprinted membranes were investigated. The results indicated that the process of dispersion in alginate and sol-gel of silanes did not have influence on the crystallization process of nano-TiO2 particles. MO was adsorbed more and faster by the molecularly imprinted membrane (MIP) than the non-imprinted membrane (NIP). Also, MIP showed good selectivity for photodegradation of MO when using MR as competitive molecules.
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