Water-based immobilized Ag-doped TiO₂ photocatalyst for photocatalytic degradation of RR4 dye / Nureel Imanina Abdul Ghani … [et al.]
This study used water-based preparation of immobilised Ag-TiO2 using the DSAT technique to avoid solvent interference of Ag-TiO2 photocatalytic performance. The preparation of Ag-TiO2 was conducted via the photodeposition method with silver nitrate (AgNO3) as Ag precursor at various ratios of Ag dop...
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| Language: | en |
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UiTM Press
2022
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| Online Access: | https://ir.uitm.edu.my/id/eprint/63178/1/63178.pdf https://ir.uitm.edu.my/id/eprint/63178/ https://scilett-fsg.uitm.edu.my/ |
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| _version_ | 1833072568985190400 |
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| author | Abdul Ghani, Nureel Imanina Rosli, Muhammad Afiq Hamzah, Siti Raihan Natar, Nadiah Sabihah Nazeri, Nur Syazana Ab Aziz, Syahirul Ikhwan Mohamad, Sarina Wan Ismail, Wan Izhan Nawawi |
| author_facet | Abdul Ghani, Nureel Imanina Rosli, Muhammad Afiq Hamzah, Siti Raihan Natar, Nadiah Sabihah Nazeri, Nur Syazana Ab Aziz, Syahirul Ikhwan Mohamad, Sarina Wan Ismail, Wan Izhan Nawawi |
| author_sort | Abdul Ghani, Nureel Imanina |
| building | Tun Abdul Razak Library |
| collection | Institutional Repository |
| content_provider | Universiti Teknologi Mara |
| content_source | UiTM Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | This study used water-based preparation of immobilised Ag-TiO2 using the DSAT technique to avoid solvent interference of Ag-TiO2 photocatalytic performance. The preparation of Ag-TiO2 was conducted via the photodeposition method with silver nitrate (AgNO3) as Ag precursor at various ratios of Ag dopant to TiO2. The immobilisation of Ag-TiO2 was prepared via water-based immobilisation using the DSAT method, and XRD and FESEM-EDX characterised the obtained photocatalyst. The photocatalytic performance of Ag-TiO2 was measured by photocatalytic degradation of Reactive Red 4 (RR4) dye. The optimum photocatalytic performance of suspension mode Ag-TiO2 was obtained at 3 % of Ag-TiO2. Sample 3 % Ag-TiO2 was applied under immobilisation mode with complete degradation of 30 mg/L RR4 dye achieved within 60 min under 55 W fluorescent lamp irradiation. It is 36 % faster compared to immobilised, unmodified TiO2. The acquired results from FESEM-EDX indicated the presence of 0.6 % Ag on the Ag-TiO2 photocatalyst sample. The photodegradation rate of immobilized 3 % Ag-TiO2 sample under different solvents has shown the different values among all where it was 0.096 > 0.037 > 0.029 > 0.029 > 0.025 min-1 for water-base, ethanol, methanol, dichloromethane and acetone respectively. Thus, the solvents can influence the photocatalytic performance of the immobilised 3 % Ag-TiO2 photocatalyst by molecular interference between Ag-doped in TiO2. The water-based immobilised 3 % Ag-TiO2 sample also has a sustainable performance where the photocatalytic activities are comparable to 10 cycles. |
| format | Article |
| id | my.uitm.ir-63178 |
| institution | Universiti Teknologi Mara |
| language | en |
| publishDate | 2022 |
| publisher | UiTM Press |
| record_format | eprints |
| spelling | my.uitm.ir-631782022-06-30T01:13:56Z https://ir.uitm.edu.my/id/eprint/63178/ Water-based immobilized Ag-doped TiO₂ photocatalyst for photocatalytic degradation of RR4 dye / Nureel Imanina Abdul Ghani … [et al.] scilett Abdul Ghani, Nureel Imanina Rosli, Muhammad Afiq Hamzah, Siti Raihan Natar, Nadiah Sabihah Nazeri, Nur Syazana Ab Aziz, Syahirul Ikhwan Mohamad, Sarina Wan Ismail, Wan Izhan Nawawi Paints, pigments, varnishes, etc. This study used water-based preparation of immobilised Ag-TiO2 using the DSAT technique to avoid solvent interference of Ag-TiO2 photocatalytic performance. The preparation of Ag-TiO2 was conducted via the photodeposition method with silver nitrate (AgNO3) as Ag precursor at various ratios of Ag dopant to TiO2. The immobilisation of Ag-TiO2 was prepared via water-based immobilisation using the DSAT method, and XRD and FESEM-EDX characterised the obtained photocatalyst. The photocatalytic performance of Ag-TiO2 was measured by photocatalytic degradation of Reactive Red 4 (RR4) dye. The optimum photocatalytic performance of suspension mode Ag-TiO2 was obtained at 3 % of Ag-TiO2. Sample 3 % Ag-TiO2 was applied under immobilisation mode with complete degradation of 30 mg/L RR4 dye achieved within 60 min under 55 W fluorescent lamp irradiation. It is 36 % faster compared to immobilised, unmodified TiO2. The acquired results from FESEM-EDX indicated the presence of 0.6 % Ag on the Ag-TiO2 photocatalyst sample. The photodegradation rate of immobilized 3 % Ag-TiO2 sample under different solvents has shown the different values among all where it was 0.096 > 0.037 > 0.029 > 0.029 > 0.025 min-1 for water-base, ethanol, methanol, dichloromethane and acetone respectively. Thus, the solvents can influence the photocatalytic performance of the immobilised 3 % Ag-TiO2 photocatalyst by molecular interference between Ag-doped in TiO2. The water-based immobilised 3 % Ag-TiO2 sample also has a sustainable performance where the photocatalytic activities are comparable to 10 cycles. UiTM Press 2022-06 Article PeerReviewed text en https://ir.uitm.edu.my/id/eprint/63178/1/63178.pdf Water-based immobilized Ag-doped TiO₂ photocatalyst for photocatalytic degradation of RR4 dye / Nureel Imanina Abdul Ghani … [et al.]. (2022) Science Letters (ScL) <https://ir.uitm.edu.my/view/publication/Science_Letters_=28ScL=29/>, 16 (2): 16. pp. 24-39. ISSN (eISSN): 2682-8626 https://scilett-fsg.uitm.edu.my/ |
| spellingShingle | Paints, pigments, varnishes, etc. Abdul Ghani, Nureel Imanina Rosli, Muhammad Afiq Hamzah, Siti Raihan Natar, Nadiah Sabihah Nazeri, Nur Syazana Ab Aziz, Syahirul Ikhwan Mohamad, Sarina Wan Ismail, Wan Izhan Nawawi Water-based immobilized Ag-doped TiO₂ photocatalyst for photocatalytic degradation of RR4 dye / Nureel Imanina Abdul Ghani … [et al.] |
| title | Water-based immobilized Ag-doped TiO₂ photocatalyst for photocatalytic degradation of RR4 dye / Nureel Imanina Abdul Ghani … [et al.] |
| title_full | Water-based immobilized Ag-doped TiO₂ photocatalyst for photocatalytic degradation of RR4 dye / Nureel Imanina Abdul Ghani … [et al.] |
| title_fullStr | Water-based immobilized Ag-doped TiO₂ photocatalyst for photocatalytic degradation of RR4 dye / Nureel Imanina Abdul Ghani … [et al.] |
| title_full_unstemmed | Water-based immobilized Ag-doped TiO₂ photocatalyst for photocatalytic degradation of RR4 dye / Nureel Imanina Abdul Ghani … [et al.] |
| title_short | Water-based immobilized Ag-doped TiO₂ photocatalyst for photocatalytic degradation of RR4 dye / Nureel Imanina Abdul Ghani … [et al.] |
| title_sort | water-based immobilized ag-doped tio₂ photocatalyst for photocatalytic degradation of rr4 dye / nureel imanina abdul ghani … [et al.] |
| topic | Paints, pigments, varnishes, etc. |
| url | https://ir.uitm.edu.my/id/eprint/63178/1/63178.pdf https://ir.uitm.edu.my/id/eprint/63178/ https://scilett-fsg.uitm.edu.my/ |
| url_provider | http://ir.uitm.edu.my/ |