Details
| Original language | English |
|---|---|
| Pages (from-to) | 688-697 |
| Number of pages | 10 |
| Journal | Journal of Cleaner Production |
| Volume | 196 |
| Early online date | 9 Jun 2018 |
| Publication status | Published - 20 Sept 2018 |
Abstract
There has been always a desire for simultaneous pollutants degradation and fuel gas formation to solve the energy and environmental challenges of today's world. In this regard, photocatalytic decomposition of organic compounds along with solar fuel production has been highly concerned. In this approach, magnetic titania nanophotocatalysts have been used for the photocatalytic generation of fuel gases using acetic acid decomposition. TiO 2/Fe 3O 4/Ag nanocomposites were found to be effective in the photocatalytic transformation of acetic acid to produce CO 2 and CH 4 as the main gaseous products along with very small quantities of H 2. The effect of low and heavy loading of magnetite and silver on photocatalytic gas formation at the nanocomposite surface has been also addressed. The amount of CO 2 and CH 4 gases evolved after 17 h irradiation was increased from 32 and 13 μmolh −1g −1 for bare TiO 2 P25 to 1169 and 992 μmolh −1g −1 for TiO 2/Fe 3O 4/Ag nanocomposite. Moreover, the ratio of the formation rates of methane to carbon dioxide evolution was increased from 0.38 for bare TiO 2 P25 to 0.85 for TiO 2/Fe 3O 4/Ag nanocomposite indicating the transition to photo-Kolbe reaction along with some alcohol formation as the main possible reaction pathways. In addition, this study designed a new approach to develop durable flexible lightweight polyester textile fabric as an innovative sustainable immobilized substrate for photo transformation of acetic acid to produce fuel gaseous products. The results indicated that more than the successful cooperation of magnetite and silver in enhanced separation of electron-hole pairs, surface phenomena such as surface wettability as proved by contact angle test are responsible for the photocatalytic activities of a fibrous substrate in aqueous systems.
Keywords
- Environmental remediation, Immobilized substrate, Organic compound degradation, Photocatalysis, Solar fuels, Textile fabric
ASJC Scopus subject areas
- Energy(all)
- Renewable Energy, Sustainability and the Environment
- Environmental Science(all)
- Business, Management and Accounting(all)
- Strategy and Management
- Engineering(all)
- Industrial and Manufacturing Engineering
Sustainable Development Goals
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In: Journal of Cleaner Production, Vol. 196, 20.09.2018, p. 688-697.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - TiO2/Fe3O4/Ag nanophotocatalysts in solar fuel production
T2 - New approach to using a flexible lightweight sustainable textile fabric
AU - Harifi, T.
AU - Montazer, M.
AU - Dillert, R.
AU - Bahnemann, D.W.
N1 - © 2018 Elsevier Ltd. All rights reserved.
PY - 2018/9/20
Y1 - 2018/9/20
N2 - There has been always a desire for simultaneous pollutants degradation and fuel gas formation to solve the energy and environmental challenges of today's world. In this regard, photocatalytic decomposition of organic compounds along with solar fuel production has been highly concerned. In this approach, magnetic titania nanophotocatalysts have been used for the photocatalytic generation of fuel gases using acetic acid decomposition. TiO 2/Fe 3O 4/Ag nanocomposites were found to be effective in the photocatalytic transformation of acetic acid to produce CO 2 and CH 4 as the main gaseous products along with very small quantities of H 2. The effect of low and heavy loading of magnetite and silver on photocatalytic gas formation at the nanocomposite surface has been also addressed. The amount of CO 2 and CH 4 gases evolved after 17 h irradiation was increased from 32 and 13 μmolh −1g −1 for bare TiO 2 P25 to 1169 and 992 μmolh −1g −1 for TiO 2/Fe 3O 4/Ag nanocomposite. Moreover, the ratio of the formation rates of methane to carbon dioxide evolution was increased from 0.38 for bare TiO 2 P25 to 0.85 for TiO 2/Fe 3O 4/Ag nanocomposite indicating the transition to photo-Kolbe reaction along with some alcohol formation as the main possible reaction pathways. In addition, this study designed a new approach to develop durable flexible lightweight polyester textile fabric as an innovative sustainable immobilized substrate for photo transformation of acetic acid to produce fuel gaseous products. The results indicated that more than the successful cooperation of magnetite and silver in enhanced separation of electron-hole pairs, surface phenomena such as surface wettability as proved by contact angle test are responsible for the photocatalytic activities of a fibrous substrate in aqueous systems.
AB - There has been always a desire for simultaneous pollutants degradation and fuel gas formation to solve the energy and environmental challenges of today's world. In this regard, photocatalytic decomposition of organic compounds along with solar fuel production has been highly concerned. In this approach, magnetic titania nanophotocatalysts have been used for the photocatalytic generation of fuel gases using acetic acid decomposition. TiO 2/Fe 3O 4/Ag nanocomposites were found to be effective in the photocatalytic transformation of acetic acid to produce CO 2 and CH 4 as the main gaseous products along with very small quantities of H 2. The effect of low and heavy loading of magnetite and silver on photocatalytic gas formation at the nanocomposite surface has been also addressed. The amount of CO 2 and CH 4 gases evolved after 17 h irradiation was increased from 32 and 13 μmolh −1g −1 for bare TiO 2 P25 to 1169 and 992 μmolh −1g −1 for TiO 2/Fe 3O 4/Ag nanocomposite. Moreover, the ratio of the formation rates of methane to carbon dioxide evolution was increased from 0.38 for bare TiO 2 P25 to 0.85 for TiO 2/Fe 3O 4/Ag nanocomposite indicating the transition to photo-Kolbe reaction along with some alcohol formation as the main possible reaction pathways. In addition, this study designed a new approach to develop durable flexible lightweight polyester textile fabric as an innovative sustainable immobilized substrate for photo transformation of acetic acid to produce fuel gaseous products. The results indicated that more than the successful cooperation of magnetite and silver in enhanced separation of electron-hole pairs, surface phenomena such as surface wettability as proved by contact angle test are responsible for the photocatalytic activities of a fibrous substrate in aqueous systems.
KW - Environmental remediation
KW - Immobilized substrate
KW - Organic compound degradation
KW - Photocatalysis
KW - Solar fuels
KW - Textile fabric
UR - http://www.scopus.com/inward/record.url?scp=85049324196&partnerID=8YFLogxK
U2 - 10.1016/j.jclepro.2018.06.031
DO - 10.1016/j.jclepro.2018.06.031
M3 - Article
VL - 196
SP - 688
EP - 697
JO - Journal of Cleaner Production
JF - Journal of Cleaner Production
SN - 0959-6526
ER -