Sunlight assisted photocatalytic degradation of organic pollutants using g-C3N4-TiO2 nanocomposites
The photocatalytic degradation of environmentally non-benign, toxic organic pollutants such as bisphenol A (BPA), brilliant green (BG), or mixture of dyes have been carried out using g-C3N4-TiO2 (GNT) nanocomposites. The GNT nanocomposites were synthesized by using hydrothermal method with different...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-04-01
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| Series: | Arabian Journal of Chemistry |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S187853522030023X |
| _version_ | 1818108496234676224 |
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| author | Radhakrishna S. Sutar Rani P. Barkul Sagar D. Delekar Meghshyam K. Patil |
| author_facet | Radhakrishna S. Sutar Rani P. Barkul Sagar D. Delekar Meghshyam K. Patil |
| author_sort | Radhakrishna S. Sutar |
| collection | DOAJ |
| description | The photocatalytic degradation of environmentally non-benign, toxic organic pollutants such as bisphenol A (BPA), brilliant green (BG), or mixture of dyes have been carried out using g-C3N4-TiO2 (GNT) nanocomposites. The GNT nanocomposites were synthesized by using hydrothermal method with different compositions and these nanocomposites were characterized using the different techniques. X-ray diffraction revealed that the anatase phase of TiO2 has been retained in composites; while characteristic reflection of g-C3N4 at 27.07° (d = 3.22 Å) is not observed due to its lower content in the nanocomposites. Raman spectra confirms the formation of composites between TiO2 with g-C3N4. Furthermore nano-scale dimensions of the bare or composites have been proved by FE-SEM and HR-TEM analysis. X-ray photoelectron spectroscopy (XPS) shows the presence of C, N, Ti and O as a constituents, with peaks due to CC, NCN of g-C3N4. Among the different nanocomposites, g-C3N4-TiO2 catalyst having 30% g-C3N4 and 70% TiO2 in molar proportion (i.e. 30-GNT) is exhibiting the highest efficiency for degradation of the different dyes in correlation to its higher surface area, lower optical band gap as well as more visible-light absorption (i.e., λ > 400 nm) in the electromagnetic spectrum. Keywords: Nanocomposites, TiO2, g-C3N4, Photocatalytic degradation, Bisphenol A, Brilliant green |
| first_indexed | 2024-12-11T02:16:17Z |
| format | Article |
| id | doaj.art-c191534f2c704ccbb2f6f9aa041550c5 |
| institution | Directory Open Access Journal |
| issn | 1878-5352 |
| language | English |
| last_indexed | 2024-12-11T02:16:17Z |
| publishDate | 2020-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arabian Journal of Chemistry |
| spelling | doaj.art-c191534f2c704ccbb2f6f9aa041550c52022-12-22T01:24:10ZengElsevierArabian Journal of Chemistry1878-53522020-04-0113449664977Sunlight assisted photocatalytic degradation of organic pollutants using g-C3N4-TiO2 nanocompositesRadhakrishna S. Sutar0Rani P. Barkul1Sagar D. Delekar2Meghshyam K. Patil3Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Sub-campus, Osmanabad 413 501, MS, IndiaDepartment of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Sub-campus, Osmanabad 413 501, MS, IndiaDepartment of Chemistry, Shivaji University, Kolhapur 416004, MS, IndiaDepartment of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Sub-campus, Osmanabad 413 501, MS, India; Corresponding author.The photocatalytic degradation of environmentally non-benign, toxic organic pollutants such as bisphenol A (BPA), brilliant green (BG), or mixture of dyes have been carried out using g-C3N4-TiO2 (GNT) nanocomposites. The GNT nanocomposites were synthesized by using hydrothermal method with different compositions and these nanocomposites were characterized using the different techniques. X-ray diffraction revealed that the anatase phase of TiO2 has been retained in composites; while characteristic reflection of g-C3N4 at 27.07° (d = 3.22 Å) is not observed due to its lower content in the nanocomposites. Raman spectra confirms the formation of composites between TiO2 with g-C3N4. Furthermore nano-scale dimensions of the bare or composites have been proved by FE-SEM and HR-TEM analysis. X-ray photoelectron spectroscopy (XPS) shows the presence of C, N, Ti and O as a constituents, with peaks due to CC, NCN of g-C3N4. Among the different nanocomposites, g-C3N4-TiO2 catalyst having 30% g-C3N4 and 70% TiO2 in molar proportion (i.e. 30-GNT) is exhibiting the highest efficiency for degradation of the different dyes in correlation to its higher surface area, lower optical band gap as well as more visible-light absorption (i.e., λ > 400 nm) in the electromagnetic spectrum. Keywords: Nanocomposites, TiO2, g-C3N4, Photocatalytic degradation, Bisphenol A, Brilliant greenhttp://www.sciencedirect.com/science/article/pii/S187853522030023X |
| spellingShingle | Radhakrishna S. Sutar Rani P. Barkul Sagar D. Delekar Meghshyam K. Patil Sunlight assisted photocatalytic degradation of organic pollutants using g-C3N4-TiO2 nanocomposites Arabian Journal of Chemistry |
| title | Sunlight assisted photocatalytic degradation of organic pollutants using g-C3N4-TiO2 nanocomposites |
| title_full | Sunlight assisted photocatalytic degradation of organic pollutants using g-C3N4-TiO2 nanocomposites |
| title_fullStr | Sunlight assisted photocatalytic degradation of organic pollutants using g-C3N4-TiO2 nanocomposites |
| title_full_unstemmed | Sunlight assisted photocatalytic degradation of organic pollutants using g-C3N4-TiO2 nanocomposites |
| title_short | Sunlight assisted photocatalytic degradation of organic pollutants using g-C3N4-TiO2 nanocomposites |
| title_sort | sunlight assisted photocatalytic degradation of organic pollutants using g c3n4 tio2 nanocomposites |
| url | http://www.sciencedirect.com/science/article/pii/S187853522030023X |
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