Facile synthesis of low crystalline BiOCl-based thermally-responsive photocatalyst with enhanced catalytic performance for photodegrading rhodamine B solution
| Autor: | Hui-Long Wang, Yang Zhao, De-Ying Zhao, Xin-Kui Wang, Hui-Ping Qi |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Graphene Mechanical Engineering Metals and Alloys Oxide chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Catalysis law.invention Bismuth chemistry.chemical_compound Adsorption chemistry Chemical engineering Mechanics of Materials law Materials Chemistry Photocatalysis Rhodamine B Crystallization 0210 nano-technology |
| Zdroj: | Journal of Alloys and Compounds. 819:153042 |
| ISSN: | 0925-8388 |
| Popis: | Based on the superior photocatalytic activity of low crystalline BiOCl (LCB) and temperature responsive character of poly(N-isopropylacrylamide) (PNIPAM), the novel BiOCl/GO@PNIPAM photocatalyst (PGOB) was successfully synthesized in this work by employing LCB as a photocatalytic core material, graphene oxide (GO) as a carrier for LCB, and PNIPAM as a thermo-sensitive shell material of the photocatalyst. Compared with the high crystalline BiOCl nanoplates (NPB), the core material LCB in PGOB exhibited superior photocatalytic activity and could be prepared simply by a mannitol complexation-assisted method under ambient conditions without any post-treatment. The interactions between mannitol and bismuth caused changes in chemical environment of bismuth in LCB. The morphology, crystallization, structure features and chemical compositions of the as-prepared samples were investigated by various techniques. The results showed that the prepared PGOB sample exhibited good temperature-responsive performance, excellent adsorption capacity and superior photocatalytic activities, the higher activity of which could be attributed to the effective separation and longer survival of the photogenerated carriers. |
| Databáze: | OpenAIRE |
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