- Title
- Efficient photocatalytic degradation of gaseous benzene and toluene over novel hybrid PIL@TiO₂/m-GO composites
- Creator
- Shajari, Shayeste; Kowsari, Elaheh; Seifvand, Naemeh; Boorboor Ajdari, Farshad; Chinnappan, Amutha; Ramakrishna, Seeram; Saianand, Gopalan; Dashti Najafi, Mohammad; Haddadi-Asl, Vahid; Abdpour, Soheil
- Relation
- Catalysts Vol. 11, Issue 1, no. 126
- Publisher Link
- http://dx.doi.org/10.3390/catal11010126
- Publisher
- MDPI AG
- Resource Type
- journal article
- Date
- 2021
- Description
- In this work, the PIL (poly ionic liquid)@TiO₂ composite was designed with two polymerized ionic liquid concentrations (low and high) and evaluated for pollutant degradation activity for benzene and toluene. The results showed that PIL (low)@TiO₂ composite was more active than PIL (high)@TiO₂ composites. The photodegradation rate of benzene and toluene pollutants by PIL (low)@TiO₂ and PIL (high)@TiO₂ composites was obtained as 86% and 74%, and 59% and 46%, respectively, under optimized conditions. The bandgap of TiO2 was markedly lowered (3.2 eV to 2.2 eV) due to the formation of PIL (low)@TiO₂ composite. Besides, graphene oxide (GO) was used to grow the nano-photocatalysts’ specific surface area. The as-synthesized PIL (low)@TiO₂@GO composite showed higher efficiency for benzene and toluene degradation which corresponds to 91% and 83%, respectively. The resultant novel hybrid photocatalyst (PIL@TiO₂/m-GO) was prepared and appropriately characterized for their microstructural, morphology, and catalytic properties. Among the studied photocatalysts, the PIL (low)@TiO₂@m-GO composite exhibits the highest activity in the degradation of benzene (97%) and toluene (97%). The ultimate bandgap of the composite reached 2.1 eV. Our results showed that the as-prepared composites hold an essential role for future considerations over organic pollutants.
- Subject
- photocatalysis; poly ionic liquids; titanium dioxide; graphene oxide; gaseous benzene
- Identifier
- http://hdl.handle.net/1959.13/1423444
- Identifier
- uon:37934
- Identifier
- ISSN:2073-4344
- Rights
- This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
- Language
- eng
- Full Text
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