Development of UV-enhanced Photocatalytic Microchannel Optical Waveguide for Water Treatment
Autor: | Parit Chandrasardula, Charusluk Viphavakit, Varong Pavarajarn, Pete Tuchinda, Pongpol Jarudrungchawalit, Pat Prammanasudh |
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Rok vydání: | 2020 |
Předmět: |
Materials science
Microchannel Borosilicate glass business.industry 02 engineering and technology 010501 environmental sciences 021001 nanoscience & nanotechnology 01 natural sciences Waveguide (optics) chemistry.chemical_compound chemistry Photocatalysis Degradation (geology) Optoelectronics Water treatment 0210 nano-technology Absorption (electromagnetic radiation) business Methylene blue 0105 earth and related environmental sciences |
Zdroj: | 2020 17th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON). |
DOI: | 10.1109/ecti-con49241.2020.9158234 |
Popis: | A multilayer microchannel optical waveguide is proposed to enhance the UV photocatalytic reaction in the water treatment. The multilayer microchannel waveguide is made of 3 borosilicate glass substrates and 2 PDMS layers with a thickness of 500 μm each. The dimensions of the fabricated microchannel are 2 cm in width, 4 cm in length and 2.5 mm in thickness. The UV-LED light source is coupled into the microchannel waveguide from the side allowing the compact and multilayer channel for the water treatment to be achieved. A 10 ppm (0.001%) methylene blue is initially investigated its degradation under UV exposure without the catalyst. The UV light guided along the microchannel waveguide can improve the light uniformity and enhance the photoreaction resulting in constant degradation rate with a 13% reduction of methylene blue concentration after 60 minutes of the exposure. |
Databáze: | OpenAIRE |
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