The Photocatalytic Conversion of Carbon Dioxide to Fuels Using Titanium Dioxide Nanosheets/Graphene Oxide Heterostructure as Photocatalyst
Carbon dioxide (CO<sub>2</sub>) photoreduction to high-value products is a technique for dealing with CO<sub>2</sub> emissions. The method involves the molecular transformation of CO<sub>2</sub> to hydrocarbon and alcohol-type chemicals, such as methane and methan...
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-01-01
|
| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-4991/13/2/320 |
| _version_ | 1827622763740790784 |
|---|---|
| author | Apisit Karawek Kittipad Kittipoom Labhassiree Tansuthepverawongse Nutkamol Kitjanukit Wannisa Neamsung Napat Lertthanaphol Prowpatchara Chanthara Sakhon Ratchahat Poomiwat Phadungbut Pattaraporn Kim-Lohsoontorn Sira Srinives |
| author_facet | Apisit Karawek Kittipad Kittipoom Labhassiree Tansuthepverawongse Nutkamol Kitjanukit Wannisa Neamsung Napat Lertthanaphol Prowpatchara Chanthara Sakhon Ratchahat Poomiwat Phadungbut Pattaraporn Kim-Lohsoontorn Sira Srinives |
| author_sort | Apisit Karawek |
| collection | DOAJ |
| description | Carbon dioxide (CO<sub>2</sub>) photoreduction to high-value products is a technique for dealing with CO<sub>2</sub> emissions. The method involves the molecular transformation of CO<sub>2</sub> to hydrocarbon and alcohol-type chemicals, such as methane and methanol, relying on a photocatalyst, such as titanium dioxide (TiO<sub>2</sub>). In this research, TiO<sub>2</sub> nanosheets (TNS) were synthesized using a hydrothermal technique in the presence of a hydrofluoric acid (HF) soft template. The nanosheets were further composited with graphene oxide and doped with copper oxide in the hydrothermal process to create the copper−TiO<sub>2</sub> nanosheets/graphene oxide (CTNSG). The CTNSG exhibited outstanding photoactivity in converting CO<sub>2</sub> gas to methane and acetone. The production rate for methane and acetone was 12.09 and 0.75 µmol h<sup>−1</sup> g<sub>cat</sub><sup>−1</sup> at 100% relative humidity, providing a total carbon consumption of 71.70 µmol g<sub>cat</sub><sup>−1</sup>. The photoactivity of CTNSG was attributed to the heterostructure interior of the two two−dimensional nanostructures, the copper−TiO<sub>2</sub> nanosheets and graphene oxide. The nanosheets−graphene oxide interfaces served as the n−p heterojunctions in holding active radicals for subsequent reactions. The heterostructure also directed the charge transfer, which promoted electron−hole separation in the photocatalyst. |
| first_indexed | 2024-03-09T11:32:22Z |
| format | Article |
| id | doaj.art-2b41e7a72c0c411cb0e61ff82efcbca6 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T11:32:22Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-2b41e7a72c0c411cb0e61ff82efcbca62023-11-30T23:48:15ZengMDPI AGNanomaterials2079-49912023-01-0113232010.3390/nano13020320The Photocatalytic Conversion of Carbon Dioxide to Fuels Using Titanium Dioxide Nanosheets/Graphene Oxide Heterostructure as PhotocatalystApisit Karawek0Kittipad Kittipoom1Labhassiree Tansuthepverawongse2Nutkamol Kitjanukit3Wannisa Neamsung4Napat Lertthanaphol5Prowpatchara Chanthara6Sakhon Ratchahat7Poomiwat Phadungbut8Pattaraporn Kim-Lohsoontorn9Sira Srinives10Nanocomposite Engineering Laboratory (NanoCEN), Department of Chemical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170, ThailandNanocomposite Engineering Laboratory (NanoCEN), Department of Chemical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170, ThailandNanocomposite Engineering Laboratory (NanoCEN), Department of Chemical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170, ThailandNanocomposite Engineering Laboratory (NanoCEN), Department of Chemical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170, ThailandNanocomposite Engineering Laboratory (NanoCEN), Department of Chemical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170, ThailandNanocomposite Engineering Laboratory (NanoCEN), Department of Chemical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170, ThailandNanocomposite Engineering Laboratory (NanoCEN), Department of Chemical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170, ThailandDepartment of Chemical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170, ThailandNanocomposite Engineering Laboratory (NanoCEN), Department of Chemical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170, ThailandCenter of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, ThailandNanocomposite Engineering Laboratory (NanoCEN), Department of Chemical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170, ThailandCarbon dioxide (CO<sub>2</sub>) photoreduction to high-value products is a technique for dealing with CO<sub>2</sub> emissions. The method involves the molecular transformation of CO<sub>2</sub> to hydrocarbon and alcohol-type chemicals, such as methane and methanol, relying on a photocatalyst, such as titanium dioxide (TiO<sub>2</sub>). In this research, TiO<sub>2</sub> nanosheets (TNS) were synthesized using a hydrothermal technique in the presence of a hydrofluoric acid (HF) soft template. The nanosheets were further composited with graphene oxide and doped with copper oxide in the hydrothermal process to create the copper−TiO<sub>2</sub> nanosheets/graphene oxide (CTNSG). The CTNSG exhibited outstanding photoactivity in converting CO<sub>2</sub> gas to methane and acetone. The production rate for methane and acetone was 12.09 and 0.75 µmol h<sup>−1</sup> g<sub>cat</sub><sup>−1</sup> at 100% relative humidity, providing a total carbon consumption of 71.70 µmol g<sub>cat</sub><sup>−1</sup>. The photoactivity of CTNSG was attributed to the heterostructure interior of the two two−dimensional nanostructures, the copper−TiO<sub>2</sub> nanosheets and graphene oxide. The nanosheets−graphene oxide interfaces served as the n−p heterojunctions in holding active radicals for subsequent reactions. The heterostructure also directed the charge transfer, which promoted electron−hole separation in the photocatalyst.https://www.mdpi.com/2079-4991/13/2/320titanium dioxideCO<sub>2</sub> conversionphotoreductionphotocatalystgraphene |
| spellingShingle | Apisit Karawek Kittipad Kittipoom Labhassiree Tansuthepverawongse Nutkamol Kitjanukit Wannisa Neamsung Napat Lertthanaphol Prowpatchara Chanthara Sakhon Ratchahat Poomiwat Phadungbut Pattaraporn Kim-Lohsoontorn Sira Srinives The Photocatalytic Conversion of Carbon Dioxide to Fuels Using Titanium Dioxide Nanosheets/Graphene Oxide Heterostructure as Photocatalyst Nanomaterials titanium dioxide CO<sub>2</sub> conversion photoreduction photocatalyst graphene |
| title | The Photocatalytic Conversion of Carbon Dioxide to Fuels Using Titanium Dioxide Nanosheets/Graphene Oxide Heterostructure as Photocatalyst |
| title_full | The Photocatalytic Conversion of Carbon Dioxide to Fuels Using Titanium Dioxide Nanosheets/Graphene Oxide Heterostructure as Photocatalyst |
| title_fullStr | The Photocatalytic Conversion of Carbon Dioxide to Fuels Using Titanium Dioxide Nanosheets/Graphene Oxide Heterostructure as Photocatalyst |
| title_full_unstemmed | The Photocatalytic Conversion of Carbon Dioxide to Fuels Using Titanium Dioxide Nanosheets/Graphene Oxide Heterostructure as Photocatalyst |
| title_short | The Photocatalytic Conversion of Carbon Dioxide to Fuels Using Titanium Dioxide Nanosheets/Graphene Oxide Heterostructure as Photocatalyst |
| title_sort | photocatalytic conversion of carbon dioxide to fuels using titanium dioxide nanosheets graphene oxide heterostructure as photocatalyst |
| topic | titanium dioxide CO<sub>2</sub> conversion photoreduction photocatalyst graphene |
| url | https://www.mdpi.com/2079-4991/13/2/320 |
| work_keys_str_mv | AT apisitkarawek thephotocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT kittipadkittipoom thephotocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT labhassireetansuthepverawongse thephotocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT nutkamolkitjanukit thephotocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT wannisaneamsung thephotocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT napatlertthanaphol thephotocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT prowpatcharachanthara thephotocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT sakhonratchahat thephotocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT poomiwatphadungbut thephotocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT pattarapornkimlohsoontorn thephotocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT sirasrinives thephotocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT apisitkarawek photocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT kittipadkittipoom photocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT labhassireetansuthepverawongse photocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT nutkamolkitjanukit photocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT wannisaneamsung photocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT napatlertthanaphol photocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT prowpatcharachanthara photocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT sakhonratchahat photocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT poomiwatphadungbut photocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT pattarapornkimlohsoontorn photocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst AT sirasrinives photocatalyticconversionofcarbondioxidetofuelsusingtitaniumdioxidenanosheetsgrapheneoxideheterostructureasphotocatalyst |