Construction of hybrid g-C3N4/CdO nanocomposite with improved photodegradation activity of RhB dye under visible light irradiation
The hybrid graphitic carbon nitride-cadmium oxide (g-C3N4/CdO) nanocomposite was fabricated using chemical precipitation and self-assembly method. The photocatalysts were characterised by XRD, XPS, FTIR, BET, TEM, FESEM, UV-Vis and PL spectroscopy. Based on the optical study, visible light harvestin...
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| Format: | Article |
| Language: | English |
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Elsevier Ltd
2020
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| Online Access: | http://umpir.ump.edu.my/id/eprint/28715/1/Construction%20of%20hybrid%20g-C3N4_CdO%20nanocomposite%20with%20improved%20.pdf |
| _version_ | 1796994126485389312 |
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| author | Thurga Devi, Munusamy Chin, S. Y. Khan, Maksudur R. |
| author_facet | Thurga Devi, Munusamy Chin, S. Y. Khan, Maksudur R. |
| author_sort | Thurga Devi, Munusamy |
| collection | UMP |
| description | The hybrid graphitic carbon nitride-cadmium oxide (g-C3N4/CdO) nanocomposite was fabricated using chemical precipitation and self-assembly method. The photocatalysts were characterised by XRD, XPS, FTIR, BET, TEM, FESEM, UV-Vis and PL spectroscopy. Based on the optical study, visible light harvesting was improved and the band gap of bulk g-C3N4 to hybrid g-C3N4/CdO nanocomposite was greatly reduced from 2.72 eV to 2.35 eV, signifying a better charge carrier mobility. The photocatalytic activity were further assessed by conducting rhodamine B (RhB) photodegradation reaction using visible light. An excellent dye removal efficiency of 96% was achieved when 1.5 g/L of hybrid g-C3N4/CdO nanocomposite was used with an initial concentration of 10 ppm for 120 min whereas only 66% of RhB was removed by bulk g-C3N4 within the same operating conditions. Besides, reusability tests were carried out and evidenced that hybrid g-C3N4/CdO nanocomposite can be recycled up to four times by retaining the degradation efficiency. The scavenging studies confirmed that the RhB photodegradation using hybrid g-C3N4/CdO nanocomposite was controlled by valance band h+ and O2− oxidation reactions. Conclusively, the inclusion of CdO onto g-C3N4 resulted in remarkable photocatalytic activity for dye degradation applications. |
| first_indexed | 2024-03-06T12:43:29Z |
| format | Article |
| id | UMPir28715 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T12:43:29Z |
| publishDate | 2020 |
| publisher | Elsevier Ltd |
| record_format | dspace |
| spelling | UMPir287152021-09-09T08:14:01Z http://umpir.ump.edu.my/id/eprint/28715/ Construction of hybrid g-C3N4/CdO nanocomposite with improved photodegradation activity of RhB dye under visible light irradiation Thurga Devi, Munusamy Chin, S. Y. Khan, Maksudur R. TP Chemical technology The hybrid graphitic carbon nitride-cadmium oxide (g-C3N4/CdO) nanocomposite was fabricated using chemical precipitation and self-assembly method. The photocatalysts were characterised by XRD, XPS, FTIR, BET, TEM, FESEM, UV-Vis and PL spectroscopy. Based on the optical study, visible light harvesting was improved and the band gap of bulk g-C3N4 to hybrid g-C3N4/CdO nanocomposite was greatly reduced from 2.72 eV to 2.35 eV, signifying a better charge carrier mobility. The photocatalytic activity were further assessed by conducting rhodamine B (RhB) photodegradation reaction using visible light. An excellent dye removal efficiency of 96% was achieved when 1.5 g/L of hybrid g-C3N4/CdO nanocomposite was used with an initial concentration of 10 ppm for 120 min whereas only 66% of RhB was removed by bulk g-C3N4 within the same operating conditions. Besides, reusability tests were carried out and evidenced that hybrid g-C3N4/CdO nanocomposite can be recycled up to four times by retaining the degradation efficiency. The scavenging studies confirmed that the RhB photodegradation using hybrid g-C3N4/CdO nanocomposite was controlled by valance band h+ and O2− oxidation reactions. Conclusively, the inclusion of CdO onto g-C3N4 resulted in remarkable photocatalytic activity for dye degradation applications. Elsevier Ltd 2020 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/28715/1/Construction%20of%20hybrid%20g-C3N4_CdO%20nanocomposite%20with%20improved%20.pdf Thurga Devi, Munusamy and Chin, S. Y. and Khan, Maksudur R. (2020) Construction of hybrid g-C3N4/CdO nanocomposite with improved photodegradation activity of RhB dye under visible light irradiation. Advanced Powder Technology, 31 (7). pp. 2921-2931. ISSN 0921-8831. (Published) https://doi.org/10.1016/j.apt.2020.05.017 https://doi.org/10.1016/j.apt.2020.05.017 |
| spellingShingle | TP Chemical technology Thurga Devi, Munusamy Chin, S. Y. Khan, Maksudur R. Construction of hybrid g-C3N4/CdO nanocomposite with improved photodegradation activity of RhB dye under visible light irradiation |
| title | Construction of hybrid g-C3N4/CdO nanocomposite with improved photodegradation activity of RhB dye under visible light irradiation |
| title_full | Construction of hybrid g-C3N4/CdO nanocomposite with improved photodegradation activity of RhB dye under visible light irradiation |
| title_fullStr | Construction of hybrid g-C3N4/CdO nanocomposite with improved photodegradation activity of RhB dye under visible light irradiation |
| title_full_unstemmed | Construction of hybrid g-C3N4/CdO nanocomposite with improved photodegradation activity of RhB dye under visible light irradiation |
| title_short | Construction of hybrid g-C3N4/CdO nanocomposite with improved photodegradation activity of RhB dye under visible light irradiation |
| title_sort | construction of hybrid g c3n4 cdo nanocomposite with improved photodegradation activity of rhb dye under visible light irradiation |
| topic | TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/28715/1/Construction%20of%20hybrid%20g-C3N4_CdO%20nanocomposite%20with%20improved%20.pdf |
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