Photocatalytic dye decolorization under light-emitting-diode irradiation by silver halides prepared from hydrohalic acids
© 2019 IOP Publishing Ltd. Silver halides were synthesized using a precipitation reaction between silver salts and hydrohalic acids. These products were characterized by X-ray diffractometry, scanning electron microscopy, UV-vis diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy....
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| Main Authors: | , , |
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| Format: | Journal |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85074399226&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/67884 |
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| Institution: | Chiang Mai University |
| Summary: | © 2019 IOP Publishing Ltd. Silver halides were synthesized using a precipitation reaction between silver salts and hydrohalic acids. These products were characterized by X-ray diffractometry, scanning electron microscopy, UV-vis diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy. The photocatalytic decolorization of the dye solutions under light-emitting-diode irradiation depended mainly on the surface area of the silver halide. On the first run, AgCl prepared from 5 M HCl showed the best activity for the decolorization of both methylene blue and reactive orange. After five recycling runs, however, AgBr prepared from 5 M HBr decolorized both dyes more effectively than that of AgCl prepared from 5 M HCl. |
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