2D graphene oxide (go) doped p-n type bioi/bi2wo6 as a novel composite for photodegradation of bisphenol a (bpa) in aqueous solutions under uv-vis irradiation
Bisphenol A (BPA) is a refractory pollutant presents in water body that possesses serious threats to living organisms. To deal with it, we investigate and evaluate the effectiveness of GO@BiOI/Bi2WO6 composite as a novel photocatalyst for BPA removal from aqueous solutions under UV-vis irradiation....
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Elsevier Ltd.
2020
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| author | Zhu, M. T. Kurniawan, T. A. You, Y. P. Avtar, R Othman, M. H. D. |
| author_facet | Zhu, M. T. Kurniawan, T. A. You, Y. P. Avtar, R Othman, M. H. D. |
| author_sort | Zhu, M. T. |
| collection | ePrints |
| description | Bisphenol A (BPA) is a refractory pollutant presents in water body that possesses serious threats to living organisms. To deal with it, we investigate and evaluate the effectiveness of GO@BiOI/Bi2WO6 composite as a novel photocatalyst for BPA removal from aqueous solutions under UV-vis irradiation. To enhance its removal for BPA, the surface of BiOI/Bi2WO6 is modified with graphene oxide (GO). This composite is named as 'GO@BiOI/Bi2WO6'. Changes in its physico-chemical properties after surface modification with GO are characterized by XRD, FTIR, FESEM-EDS, XPS, PL, and BET methods. Optimized conditions of BPA degradation by the composite are determined under identical conditions. Photodegradation pathways of BPA and its removal mechanisms by the same composite are presented. It is obvious that the GO@BiOI/Bi2WO6 has demonstrated its potential as a promising photocatalyst for BPA removal under UV-vis irradiation. About 81% of BPA removal is attained by the GO@BiOI/Bi2WO6 under optimized conditions (10 mg/L of BPA, 0.5 g/L of dose, pH 7 and 5 h of reaction time). The oxidation by-products of BPA degradation include p-hydroquinone or 4-(1-hydroxy-1-methyl-ethyl)-phenol. In spite of its performance, the treated effluents are still unable to meet the maximum discharge limit of < 1 mg/L set by national legislation. Therefore, subsequent biological processes are essential to maximize its biodegradation in the wastewater samples before their discharge into waterbody. |
| first_indexed | 2024-03-05T20:38:51Z |
| format | Article |
| id | utm.eprints-86404 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T20:38:51Z |
| publishDate | 2020 |
| publisher | Elsevier Ltd. |
| record_format | dspace |
| spelling | utm.eprints-864042020-10-13T02:08:53Z http://eprints.utm.my/86404/ 2D graphene oxide (go) doped p-n type bioi/bi2wo6 as a novel composite for photodegradation of bisphenol a (bpa) in aqueous solutions under uv-vis irradiation Zhu, M. T. Kurniawan, T. A. You, Y. P. Avtar, R Othman, M. H. D. TP Chemical technology Bisphenol A (BPA) is a refractory pollutant presents in water body that possesses serious threats to living organisms. To deal with it, we investigate and evaluate the effectiveness of GO@BiOI/Bi2WO6 composite as a novel photocatalyst for BPA removal from aqueous solutions under UV-vis irradiation. To enhance its removal for BPA, the surface of BiOI/Bi2WO6 is modified with graphene oxide (GO). This composite is named as 'GO@BiOI/Bi2WO6'. Changes in its physico-chemical properties after surface modification with GO are characterized by XRD, FTIR, FESEM-EDS, XPS, PL, and BET methods. Optimized conditions of BPA degradation by the composite are determined under identical conditions. Photodegradation pathways of BPA and its removal mechanisms by the same composite are presented. It is obvious that the GO@BiOI/Bi2WO6 has demonstrated its potential as a promising photocatalyst for BPA removal under UV-vis irradiation. About 81% of BPA removal is attained by the GO@BiOI/Bi2WO6 under optimized conditions (10 mg/L of BPA, 0.5 g/L of dose, pH 7 and 5 h of reaction time). The oxidation by-products of BPA degradation include p-hydroquinone or 4-(1-hydroxy-1-methyl-ethyl)-phenol. In spite of its performance, the treated effluents are still unable to meet the maximum discharge limit of < 1 mg/L set by national legislation. Therefore, subsequent biological processes are essential to maximize its biodegradation in the wastewater samples before their discharge into waterbody. Elsevier Ltd. 2020-03 Article PeerReviewed Zhu, M. T. and Kurniawan, T. A. and You, Y. P. and Avtar, R and Othman, M. H. D. (2020) 2D graphene oxide (go) doped p-n type bioi/bi2wo6 as a novel composite for photodegradation of bisphenol a (bpa) in aqueous solutions under uv-vis irradiation. Materials Science & Engineering C-Materials for Biological Applications, 108 . https://dx.doi.org/10.1016/j.msec.2019.110420 DOI:10.1016/j.msec.2019.110420 |
| spellingShingle | TP Chemical technology Zhu, M. T. Kurniawan, T. A. You, Y. P. Avtar, R Othman, M. H. D. 2D graphene oxide (go) doped p-n type bioi/bi2wo6 as a novel composite for photodegradation of bisphenol a (bpa) in aqueous solutions under uv-vis irradiation |
| title | 2D graphene oxide (go) doped p-n type bioi/bi2wo6 as a novel composite for photodegradation of bisphenol a (bpa) in aqueous solutions under uv-vis irradiation |
| title_full | 2D graphene oxide (go) doped p-n type bioi/bi2wo6 as a novel composite for photodegradation of bisphenol a (bpa) in aqueous solutions under uv-vis irradiation |
| title_fullStr | 2D graphene oxide (go) doped p-n type bioi/bi2wo6 as a novel composite for photodegradation of bisphenol a (bpa) in aqueous solutions under uv-vis irradiation |
| title_full_unstemmed | 2D graphene oxide (go) doped p-n type bioi/bi2wo6 as a novel composite for photodegradation of bisphenol a (bpa) in aqueous solutions under uv-vis irradiation |
| title_short | 2D graphene oxide (go) doped p-n type bioi/bi2wo6 as a novel composite for photodegradation of bisphenol a (bpa) in aqueous solutions under uv-vis irradiation |
| title_sort | 2d graphene oxide go doped p n type bioi bi2wo6 as a novel composite for photodegradation of bisphenol a bpa in aqueous solutions under uv vis irradiation |
| topic | TP Chemical technology |
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