Enhancing the photo-electrocatalytic properties of g-C3N4 by boron doping and ZIF-8 hybridization
Developing the ideal catalyst for photo-electrocatalysis applications is attracting wide interest. In this study, the photo-electrocatalytic properties of metal-free catalyst g-C3N4 modified with ZIF-8 and boron doping were investigated. Bulk g-C3N4 was synthesized by thermal decomposition of melami...
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| Format: | Article |
| Language: | English English |
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Elsevier B.V.
2023
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| Online Access: | http://umpir.ump.edu.my/id/eprint/42837/ http://umpir.ump.edu.my/id/eprint/42837/1/Enhancing%20the%20photo-electrocatalytic%20properties%20of%20g-C3N4.pdf http://umpir.ump.edu.my/id/eprint/42837/2/Enhancing%20the%20photo-electrocatalytic%20properties%20of%20g-C3N4%20by%20boron%20doping%20and%20ZIF-8%20hybridization_ABS.pdf |
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| author | Atta, Mahmood Riyadh Maizatul Shima, Shaharun Khan, Maksudur Rahman Md Bawadi, Abdullah Al-Mahmodi, Akram Fadhl Nur Diyan, Mohd Ridzuan Munusamy, Thurga Devi Jun Wei, Lim |
| author_facet | Atta, Mahmood Riyadh Maizatul Shima, Shaharun Khan, Maksudur Rahman Md Bawadi, Abdullah Al-Mahmodi, Akram Fadhl Nur Diyan, Mohd Ridzuan Munusamy, Thurga Devi Jun Wei, Lim |
| author_sort | Atta, Mahmood Riyadh |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Developing the ideal catalyst for photo-electrocatalysis applications is attracting wide interest. In this study, the photo-electrocatalytic properties of metal-free catalyst g-C3N4 modified with ZIF-8 and boron doping were investigated. Bulk g-C3N4 was synthesized by thermal decomposition of melamine; boron doping was performed via co-condensation, while the ZIF-8 hybridization was performed by in-situ heterogeneous deposition method. The physicochemical properties of the catalysts were characterized by X-ray diffraction analysis, Fourier-transform infrared spectroscopy, UV–VIS, X-ray photoelectron spectroscopy, field emission scanning electron microscopy and elemental mapping. The band gap energies increased from 1.878 eV for g-C3N4 to 2.36, 2.28 and 2.42 eV for B-g-C3N4, g-C3N4/ZIF-8 and B-g-C3N4/ZIF-8, respectively. Moreover, CO2 reduction in a PEC cell using the prepared catalysts as working electrodes was conducted to evaluate the photo-electrocatalytic properties using cyclic voltammetry, electrochemical impedance spectroscopy and linear sweep voltammetry. Incorporation of ZIF-8 significantly influenced the photocatalysis properties by increasing current density from a −1.08 mA/cm2 for g-C3N4 to a −1.52 mA/cm2 in g-C3N4/ZIF-8, and slightly increased the electrical conductivity from a −0.846 mA/cm2 to a −1.235 mA/cm2. In the other hand, boron doping only influenced the electrical properties of g-C3N4 where its reductive current increased from 0.065 mA (g-C3N4) to a 0.34 mA (B-g-C3N4) at −0.404 V potential voltage. As a result, merging these modifications noticeably enhanced the photo-electrocatalytic activity and light sensitivity of the main catalyst, which opens a wider range of applications and future research. |
| first_indexed | 2025-11-15T03:49:11Z |
| format | Article |
| id | ump-42837 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T03:49:11Z |
| publishDate | 2023 |
| publisher | Elsevier B.V. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-428372025-01-07T04:51:36Z http://umpir.ump.edu.my/id/eprint/42837/ Enhancing the photo-electrocatalytic properties of g-C3N4 by boron doping and ZIF-8 hybridization Atta, Mahmood Riyadh Maizatul Shima, Shaharun Khan, Maksudur Rahman Md Bawadi, Abdullah Al-Mahmodi, Akram Fadhl Nur Diyan, Mohd Ridzuan Munusamy, Thurga Devi Jun Wei, Lim QD Chemistry T Technology (General) TA Engineering (General). Civil engineering (General) TP Chemical technology Developing the ideal catalyst for photo-electrocatalysis applications is attracting wide interest. In this study, the photo-electrocatalytic properties of metal-free catalyst g-C3N4 modified with ZIF-8 and boron doping were investigated. Bulk g-C3N4 was synthesized by thermal decomposition of melamine; boron doping was performed via co-condensation, while the ZIF-8 hybridization was performed by in-situ heterogeneous deposition method. The physicochemical properties of the catalysts were characterized by X-ray diffraction analysis, Fourier-transform infrared spectroscopy, UV–VIS, X-ray photoelectron spectroscopy, field emission scanning electron microscopy and elemental mapping. The band gap energies increased from 1.878 eV for g-C3N4 to 2.36, 2.28 and 2.42 eV for B-g-C3N4, g-C3N4/ZIF-8 and B-g-C3N4/ZIF-8, respectively. Moreover, CO2 reduction in a PEC cell using the prepared catalysts as working electrodes was conducted to evaluate the photo-electrocatalytic properties using cyclic voltammetry, electrochemical impedance spectroscopy and linear sweep voltammetry. Incorporation of ZIF-8 significantly influenced the photocatalysis properties by increasing current density from a −1.08 mA/cm2 for g-C3N4 to a −1.52 mA/cm2 in g-C3N4/ZIF-8, and slightly increased the electrical conductivity from a −0.846 mA/cm2 to a −1.235 mA/cm2. In the other hand, boron doping only influenced the electrical properties of g-C3N4 where its reductive current increased from 0.065 mA (g-C3N4) to a 0.34 mA (B-g-C3N4) at −0.404 V potential voltage. As a result, merging these modifications noticeably enhanced the photo-electrocatalytic activity and light sensitivity of the main catalyst, which opens a wider range of applications and future research. Elsevier B.V. 2023-02 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/42837/1/Enhancing%20the%20photo-electrocatalytic%20properties%20of%20g-C3N4.pdf pdf en http://umpir.ump.edu.my/id/eprint/42837/2/Enhancing%20the%20photo-electrocatalytic%20properties%20of%20g-C3N4%20by%20boron%20doping%20and%20ZIF-8%20hybridization_ABS.pdf Atta, Mahmood Riyadh and Maizatul Shima, Shaharun and Khan, Maksudur Rahman Md and Bawadi, Abdullah and Al-Mahmodi, Akram Fadhl and Nur Diyan, Mohd Ridzuan and Munusamy, Thurga Devi and Jun Wei, Lim (2023) Enhancing the photo-electrocatalytic properties of g-C3N4 by boron doping and ZIF-8 hybridization. Inorganic Chemistry Communications, 148 (110235). pp. 1-11. ISSN 1387-7003. (Published) https://doi.org/10.1016/j.inoche.2022.110235 https://doi.org/10.1016/j.inoche.2022.110235 |
| spellingShingle | QD Chemistry T Technology (General) TA Engineering (General). Civil engineering (General) TP Chemical technology Atta, Mahmood Riyadh Maizatul Shima, Shaharun Khan, Maksudur Rahman Md Bawadi, Abdullah Al-Mahmodi, Akram Fadhl Nur Diyan, Mohd Ridzuan Munusamy, Thurga Devi Jun Wei, Lim Enhancing the photo-electrocatalytic properties of g-C3N4 by boron doping and ZIF-8 hybridization |
| title | Enhancing the photo-electrocatalytic properties of g-C3N4 by boron doping and ZIF-8 hybridization |
| title_full | Enhancing the photo-electrocatalytic properties of g-C3N4 by boron doping and ZIF-8 hybridization |
| title_fullStr | Enhancing the photo-electrocatalytic properties of g-C3N4 by boron doping and ZIF-8 hybridization |
| title_full_unstemmed | Enhancing the photo-electrocatalytic properties of g-C3N4 by boron doping and ZIF-8 hybridization |
| title_short | Enhancing the photo-electrocatalytic properties of g-C3N4 by boron doping and ZIF-8 hybridization |
| title_sort | enhancing the photo-electrocatalytic properties of g-c3n4 by boron doping and zif-8 hybridization |
| topic | QD Chemistry T Technology (General) TA Engineering (General). Civil engineering (General) TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/42837/ http://umpir.ump.edu.my/id/eprint/42837/ http://umpir.ump.edu.my/id/eprint/42837/ http://umpir.ump.edu.my/id/eprint/42837/1/Enhancing%20the%20photo-electrocatalytic%20properties%20of%20g-C3N4.pdf http://umpir.ump.edu.my/id/eprint/42837/2/Enhancing%20the%20photo-electrocatalytic%20properties%20of%20g-C3N4%20by%20boron%20doping%20and%20ZIF-8%20hybridization_ABS.pdf |