New insight into the photocatalytic degradation of organic pollutant over BiVO4/SiO2/GO nanocomposite
Abstract The nanocomposite of BiVO4-based material has been synthesized by one-step solvent method. The morphological, physical, chemical properties of the nanocomposite have been investigated. The results revealed that the surface area of BiVO4, BiVO4/SiO2 and BiVO4/SiO2/GO was 11.13, 28.47 and 43....
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2021-02-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-84323-5 |
| _version_ | 1818842990469185536 |
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| author | Dang Trung Tri Trinh Duangdao Channei Auppatham Nakaruk Wilawan Khanitchaidecha |
| author_facet | Dang Trung Tri Trinh Duangdao Channei Auppatham Nakaruk Wilawan Khanitchaidecha |
| author_sort | Dang Trung Tri Trinh |
| collection | DOAJ |
| description | Abstract The nanocomposite of BiVO4-based material has been synthesized by one-step solvent method. The morphological, physical, chemical properties of the nanocomposite have been investigated. The results revealed that the surface area of BiVO4, BiVO4/SiO2 and BiVO4/SiO2/GO was 11.13, 28.47 and 43.93 m2/g, respectively. The structural test by XRD proved that the nanocomposites were monoclinic phase of bismuth vanadate. Adsorption and photocatalytic degradation were two main mechanisms that strongly related to pollutant removal efficiency (i.e., methylene blue and phenol). The BiVO4/SiO2/GO nanocomposite obtained the greatest MB removal efficiency due to its high adsorption ability from high surface area, whereas the photocatalytic degradation was insignificant mechanism. In contrast, the relatively low adsorption ability of BiVO4/SiO2/GO nanocomposite was observed when the pollutant was phenol due to negative charge and high stability of phenoxide ions, then the photocatalytic degradation became the main mechanism for phenol removal. The phenol removal efficiency reached approximately 70% in 6 h with H2O2 assistance. The combination of SiO2 and GO improved the surface property of BiVO4-based photocatalyst, however the excessive combination ratio generated the excellent adsorbent material rather than the photocatalyst. Hence, the optimal combination ratio is essential to archive the greatest nanocomposite for photocatalytic application. |
| first_indexed | 2024-12-19T04:50:45Z |
| format | Article |
| id | doaj.art-b7a9d8c650fe486ca04575327cc4b0e0 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-19T04:50:45Z |
| publishDate | 2021-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-b7a9d8c650fe486ca04575327cc4b0e02022-12-21T20:35:22ZengNature PortfolioScientific Reports2045-23222021-02-0111111110.1038/s41598-021-84323-5New insight into the photocatalytic degradation of organic pollutant over BiVO4/SiO2/GO nanocompositeDang Trung Tri Trinh0Duangdao Channei1Auppatham Nakaruk2Wilawan Khanitchaidecha3Department of Civil Engineering, Faculty of Engineering, Naresuan UniversityCentre of Excellence for Innovation and Technology for Water Treatment, Naresuan UniversityCentre of Excellence for Innovation and Technology for Water Treatment, Naresuan UniversityDepartment of Civil Engineering, Faculty of Engineering, Naresuan UniversityAbstract The nanocomposite of BiVO4-based material has been synthesized by one-step solvent method. The morphological, physical, chemical properties of the nanocomposite have been investigated. The results revealed that the surface area of BiVO4, BiVO4/SiO2 and BiVO4/SiO2/GO was 11.13, 28.47 and 43.93 m2/g, respectively. The structural test by XRD proved that the nanocomposites were monoclinic phase of bismuth vanadate. Adsorption and photocatalytic degradation were two main mechanisms that strongly related to pollutant removal efficiency (i.e., methylene blue and phenol). The BiVO4/SiO2/GO nanocomposite obtained the greatest MB removal efficiency due to its high adsorption ability from high surface area, whereas the photocatalytic degradation was insignificant mechanism. In contrast, the relatively low adsorption ability of BiVO4/SiO2/GO nanocomposite was observed when the pollutant was phenol due to negative charge and high stability of phenoxide ions, then the photocatalytic degradation became the main mechanism for phenol removal. The phenol removal efficiency reached approximately 70% in 6 h with H2O2 assistance. The combination of SiO2 and GO improved the surface property of BiVO4-based photocatalyst, however the excessive combination ratio generated the excellent adsorbent material rather than the photocatalyst. Hence, the optimal combination ratio is essential to archive the greatest nanocomposite for photocatalytic application.https://doi.org/10.1038/s41598-021-84323-5 |
| spellingShingle | Dang Trung Tri Trinh Duangdao Channei Auppatham Nakaruk Wilawan Khanitchaidecha New insight into the photocatalytic degradation of organic pollutant over BiVO4/SiO2/GO nanocomposite Scientific Reports |
| title | New insight into the photocatalytic degradation of organic pollutant over BiVO4/SiO2/GO nanocomposite |
| title_full | New insight into the photocatalytic degradation of organic pollutant over BiVO4/SiO2/GO nanocomposite |
| title_fullStr | New insight into the photocatalytic degradation of organic pollutant over BiVO4/SiO2/GO nanocomposite |
| title_full_unstemmed | New insight into the photocatalytic degradation of organic pollutant over BiVO4/SiO2/GO nanocomposite |
| title_short | New insight into the photocatalytic degradation of organic pollutant over BiVO4/SiO2/GO nanocomposite |
| title_sort | new insight into the photocatalytic degradation of organic pollutant over bivo4 sio2 go nanocomposite |
| url | https://doi.org/10.1038/s41598-021-84323-5 |
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