การผลิตไฮโดรเจนและการขจัดสารมลพิษจากน้ำเสียจากกระบวนการผลิตไบโอดีเซลโดยพร้อมกันด้วยตัวเร่งปฏิกิริยาเชิงแสง TiO2 ที่เจือด้วยโลหะ
This research aimed to study the simultaneous H2 production and pollutant removal from biodiesel wastewater by the photooxidation process via metal-doped TiO2 using wastewater with 3.3-dilution, initial pH of 3.10, photocatalyst dosage of 4 g/L, UV light intensity of 5.93 mW/cm2 and irradiation time...
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| Format: | Theses and Dissertations |
| Language: | Thai |
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จุฬาลงกรณ์มหาวิทยาลัย
2018
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| Online Access: | https://digiverse.chula.ac.th/Info/item/dc:34014 |
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| Summary: | This research aimed to study the simultaneous H2 production and pollutant removal from biodiesel wastewater by the photooxidation process via metal-doped TiO2 using wastewater with 3.3-dilution, initial pH of 3.10, photocatalyst dosage of 4 g/L, UV light intensity of 5.93 mW/cm2 and irradiation time of 4 h at ambient temperature (~30°C). Firstly, the different metal nanoparticles (Au, Pt, Pd and Ni) doped on TiO2 photocatalyst at metal content of 1 wt.% (M1/T400) was investigated. It was found that types of doped metal provided insignificantly for the COD, BOD and Oil & grease removal. However, the H2 production rate was enhanced and ranked in order of Pt1/T400 > Pd1/T400 > Au1/T400 > Ni1/T400 due to the different work function between doped metal and T400 photocatalyst. Additionally, the effect of Pd content (1 – 4 wt.%) on T400 photocatalyst (Pdx/T400) was performed. The results revealed that the Pd3/T400 photocatalyst showed the highest photocatalytic activity for hydrogen production (135 mmol/h) and COD, BOD and Oil & grease removal of 31.9%, 81.5% and 58.2%, respectively. |
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