Production of Methanol as a Fuel Energy from CO2 Present in Polluted Seawater - A Photocatalytic Outlook
| Autor: | Mousa Zobidi, Yasar N. Kavil, Radwan Al-Farawati, Sahed U M Khan, Yasser A. Shaban, Mohammad I. Orif |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Chemistry
Cu-C/TiO2 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences lcsh:Chemistry chemistry.chemical_compound lcsh:QD1-999 CO2 reduction Environmental chemistry Materials Chemistry Photocatalysis Seawater polluted seawater Methanol 0210 nano-technology methanol |
| Zdroj: | Open Chemistry, Vol 16, Iss 1, Pp 1089-1098 (2018) |
| ISSN: | 2391-5420 |
| DOI: | 10.1515/chem-2018-0120 |
| Popis: | The production of methanol by photocatalytic reduction of the CO2 present in the different polluted seawater systems was explored using P–25, C/TiO2, and Cu-C/TiO2 under both UV and sunlight. Both C/TiO2 and Cu-C/TiO2 were synthesized by the sonicated sol-gel method. The prepared photocatalyst demonstrated maximum efficiency when the dosage of photocatalysts was 1g/L and the doping level was 3wt% of copper. The maximum methanol yields of two observed polluted seawater systems were 2910 μmol/g and 2250 μmol/g after 5 hour illumination of UV light. However, the 5 hour natural sunlight illumination generated the yield of 990 μmol/g and 910 μmol/g of methanol. The observed results demonstrated that band gap narrowing of the photocatalyst by carbon modification and the restriction of electron-hole pair combination by copper doping both greatly enhanced the photocatalytic reduction of CO2 to methanol under both UV and natural sunlight. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|