Composites of Silica and Molecularly Imprinted Polymers for Degradation of Sulfadiazine
| Autor: | Xiao Wei, Pan Jianming, Jiangdong Dai, Yong-Sheng Yan, Longcheng Xu, Fenfen Shi, Qianfang Xia |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
chemistry.chemical_classification
Materials science Ethylene glycol dimethacrylate Molecularly imprinted polymer Nanoparticle Chain transfer Polymer Zinc sulfide Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound General Energy chemistry Chemical engineering Polymerization Polymer chemistry Photocatalysis Physical and Theoretical Chemistry |
| Zdroj: | The Journal of Physical Chemistry C. 116:25309-25318 |
| ISSN: | 1932-7455 1932-7447 |
| DOI: | 10.1021/jp306654e |
| Popis: | We report on the fabrication of silica/zinc oxide/zinc sulfide nanoparticles (SiO2/ZnO/ZnS NPs) wrapped with thermoresponsive molecularly imprinted polymers (TMIPs) for photocatalysis (PC) applications. TMIPs were prepared via surface-initiated reversible addition–fragmentation chain transfer (SI-RAFT) polymerization of N-isopropylacrylamide (NIPAm) and ethylene glycol dimethacrylate (EGDMA), rendering the material solution accessible and temperature sensitive. Photodegradation of sulfadiazine (SD) was used as a probe to evaluate the effect of coated TMIPs on the PC performance of SiO2/ZnO/ZnS NPs. The results showed that TMIPs made SiO2/ZnO/ZnS NPs have an outstanding specific affinity PC activity toward template SD. Modification of SiO2/ZnO/ZnS NPs with Ag2S resulted in a tunable PC ability of the prepared material. For SI-RAFT conducted in a controlled manner, a thin layer of polymers (∼100 nm) formed around NPs was measured by a transmission electron microscopy (TEM). Also the polymers were characteri... |
| Databáze: | OpenAIRE |
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