Synthesis of mesoporous BiOI flower and facile in-situ preparation of BiOI/BiOCl mixture for enhanced photocatalytic degradation of toxic dye, Rhodamine-B
| Autor: | Swapan Kumar Bhattacharya, Malay Chakraborty, Ashutosh Ghosh, Som S. Chatterjee, Kamal Kanti Bera |
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| Rok vydání: | 2021 |
| Předmět: |
Aqueous solution
Photo-catalysis mechanism Catalysis Chemistry chemistry.chemical_compound chemistry Phase (matter) In-situ junction formation Rhodamine B Degradation (geology) Rhodamine-B degradation Mesoporous material Porous BiOI photo-catalyst QD1-999 Visible spectrum Diffractometer Nuclear chemistry |
| Zdroj: | Journal of Photochemistry and Photobiology, Vol 8, Iss, Pp 100077-(2021) |
| ISSN: | 2666-4690 |
| Popis: | Porous flower-like BiOI possessing excellent and wonderful activity in visible light induced photo-catalytic degradation of Rhodamine-B, have been synthesized by facile solvothermal method. X-ray diffractometer, microscopes and spectroscopes are employed to study the phase structure, nano-dimension, purity and morphology of synthesized and used catalysts. The degradation using BiOI is increased from 74 to 99.2 % within 1 h for in-situ formation of BiOI/BiOCl mixture in media of aqueous BiOI containing Cl− ion. The study of reaction parameters reveals high efficiency of mixed catalyst with maximum removal of the dye achieved up to 99.2 % in 1 h for a dye concentration of 5 mg/L at pH 3. Possible degradation products are detected, scavenger-effects determined and mechanisms proposed. |
| Databáze: | OpenAIRE |
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