Combination of rGO/S, N/TiO2 for the enhancement of visible light-driven toluene photocatalytic degradation
Abstract Toluene is one type of common volatile organic compounds that is harmful to human health. Therefore, the degradation of toluene is critical to improving air quality value. Performance improvement of TiO2, a typically applied photocatalyst, has advantages in light absorption and electron tra...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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BMC
2022-06-01
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| Series: | Sustainable Environment Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s42834-022-00143-w |
| _version_ | 1817976565839953920 |
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| author | Birgitta Narindri Rara Winayu Wan-Hua Mao Hsin Chu |
| author_facet | Birgitta Narindri Rara Winayu Wan-Hua Mao Hsin Chu |
| author_sort | Birgitta Narindri Rara Winayu |
| collection | DOAJ |
| description | Abstract Toluene is one type of common volatile organic compounds that is harmful to human health. Therefore, the degradation of toluene is critical to improving air quality value. Performance improvement of TiO2, a typically applied photocatalyst, has advantages in light absorption and electron transfer process. In this study, the TiO2 catalyst was improved by the doping of reduced graphene oxide (rGO), sulfur, and nitrogen (S, N) elements. The highest toluene photocatalytic degradation was performed under the composition of 1wt%rGO/S0.05N0.1TiO2. Improvement in photocatalytic activity was achieved by higher specific surface area, formation of oxygen-containing functional group, and chemical defect structure. However, a higher amount of rGO addition creates the shielding effect and inhibits the light penetration. Moreover, the relative humidity and applied temperature influence the photocatalytic activity through the competitive adsorption or increase the collisions frequency, respectively. During the photocatalytic degradation using 0.1wt%rGO/S0.05N0.1TiO2, toluene will be converted into benzyl alcohol, benzaldehyde, benzoic acid, water, and carbon dioxide. |
| first_indexed | 2024-04-13T22:05:14Z |
| format | Article |
| id | doaj.art-77ed45ffbe034160abeac3f301a275ce |
| institution | Directory Open Access Journal |
| issn | 2468-2039 |
| language | English |
| last_indexed | 2024-04-13T22:05:14Z |
| publishDate | 2022-06-01 |
| publisher | BMC |
| record_format | Article |
| series | Sustainable Environment Research |
| spelling | doaj.art-77ed45ffbe034160abeac3f301a275ce2022-12-22T02:27:59ZengBMCSustainable Environment Research2468-20392022-06-0132111810.1186/s42834-022-00143-wCombination of rGO/S, N/TiO2 for the enhancement of visible light-driven toluene photocatalytic degradationBirgitta Narindri Rara Winayu0Wan-Hua Mao1Hsin Chu2Department of Environmental Engineering, National Cheng Kung UniversityDepartment of Environmental Engineering, National Cheng Kung UniversityDepartment of Environmental Engineering, National Cheng Kung UniversityAbstract Toluene is one type of common volatile organic compounds that is harmful to human health. Therefore, the degradation of toluene is critical to improving air quality value. Performance improvement of TiO2, a typically applied photocatalyst, has advantages in light absorption and electron transfer process. In this study, the TiO2 catalyst was improved by the doping of reduced graphene oxide (rGO), sulfur, and nitrogen (S, N) elements. The highest toluene photocatalytic degradation was performed under the composition of 1wt%rGO/S0.05N0.1TiO2. Improvement in photocatalytic activity was achieved by higher specific surface area, formation of oxygen-containing functional group, and chemical defect structure. However, a higher amount of rGO addition creates the shielding effect and inhibits the light penetration. Moreover, the relative humidity and applied temperature influence the photocatalytic activity through the competitive adsorption or increase the collisions frequency, respectively. During the photocatalytic degradation using 0.1wt%rGO/S0.05N0.1TiO2, toluene will be converted into benzyl alcohol, benzaldehyde, benzoic acid, water, and carbon dioxide.https://doi.org/10.1186/s42834-022-00143-wPhotocatalystTitanium oxideTolueneNon-metallic dopingReduced graphene oxide |
| spellingShingle | Birgitta Narindri Rara Winayu Wan-Hua Mao Hsin Chu Combination of rGO/S, N/TiO2 for the enhancement of visible light-driven toluene photocatalytic degradation Sustainable Environment Research Photocatalyst Titanium oxide Toluene Non-metallic doping Reduced graphene oxide |
| title | Combination of rGO/S, N/TiO2 for the enhancement of visible light-driven toluene photocatalytic degradation |
| title_full | Combination of rGO/S, N/TiO2 for the enhancement of visible light-driven toluene photocatalytic degradation |
| title_fullStr | Combination of rGO/S, N/TiO2 for the enhancement of visible light-driven toluene photocatalytic degradation |
| title_full_unstemmed | Combination of rGO/S, N/TiO2 for the enhancement of visible light-driven toluene photocatalytic degradation |
| title_short | Combination of rGO/S, N/TiO2 for the enhancement of visible light-driven toluene photocatalytic degradation |
| title_sort | combination of rgo s n tio2 for the enhancement of visible light driven toluene photocatalytic degradation |
| topic | Photocatalyst Titanium oxide Toluene Non-metallic doping Reduced graphene oxide |
| url | https://doi.org/10.1186/s42834-022-00143-w |
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