A facile approach for fabricating g-C3N4-based materials as metal-free photocatalysts
This study presents a novel, straightforward approach for synthesizing graphitic carbon nitrides (g-C3N4, g-CN) from melamine, requiring merely 30 min of thermal holding at temperatures ranging from 400 to 550 °C in an atmosphere comprising either nitrogen or air. Elemental analysis, X-ray powder di...
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Elsevier
2024-12-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123024013641 |
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| author | Monika Michalska Jiri Pavlovsky Eva Scholtzova Peter Skorna Vlastimil Matejka Kamil Bochenek Amrita Jain Koki Chida Takeharu Yoshii Hirotomo Nishihara |
| author_facet | Monika Michalska Jiri Pavlovsky Eva Scholtzova Peter Skorna Vlastimil Matejka Kamil Bochenek Amrita Jain Koki Chida Takeharu Yoshii Hirotomo Nishihara |
| author_sort | Monika Michalska |
| collection | DOAJ |
| description | This study presents a novel, straightforward approach for synthesizing graphitic carbon nitrides (g-C3N4, g-CN) from melamine, requiring merely 30 min of thermal holding at temperatures ranging from 400 to 550 °C in an atmosphere comprising either nitrogen or air. Elemental analysis, X-ray powder diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), diffuse reflectance (UV–Vis DRS), photoluminescence (PL) spectroscopy and scanning electron microscopy (SEM) were employed to assess the quality of the as-prepared powders. Furthermore, theoretical calculations utilizing the Density Functional Theory (DFT) method were conducted to reinforce the experimental findings of the research. A further investigation of the thermal stability of the selected sample was conducted using a unique combination of thermogravimetry–coupled with differential scanning calorimetry, quadrupole mass spectrometry (TG-DSC-MS) and advanced temperature-programmed desorption (TPD) analyzes. The current study focuses on the effect of synthesis conditions (temperature and nitrogen/air environment) on the structure, morphology, and photocatalytic performance of g-C3N4 compounds synthesized using this approach. The g-C3N4-based materials were examined as potential photocatalysts using the acid orange 7 (AO7) photodegradation methodology. To enable comparison of the photodegradation experiments, two separate lamps with wavelengths of 360 nm (UV light) and 420 nm (VIS light) were utilized. The primary objective was to present a novel method for the synthesis of g-C3N4-based materials. This was achieved by demonstrating that organic composites generated at lower temperatures have the best photocatalytic capabilities. Furthermore, the approach to achieving high-quality photocatalysts was shown to be cost-effective, environmentally friendly, and scalable. |
| format | Article |
| id | doaj-art-89831871a91346ea85ff50007443900c |
| institution | Kabale University |
| issn | 2590-1230 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-89831871a91346ea85ff50007443900c2024-12-19T10:58:11ZengElsevierResults in Engineering2590-12302024-12-0124103109A facile approach for fabricating g-C3N4-based materials as metal-free photocatalystsMonika Michalska0Jiri Pavlovsky1Eva Scholtzova2Peter Skorna3Vlastimil Matejka4Kamil Bochenek5Amrita Jain6Koki Chida7Takeharu Yoshii8Hirotomo Nishihara9Department of Chemistry and Physico-Chemical Processes, Faculty of Materials Science and Technology, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00, Ostrava-Poruba, Czech Republic; Corresponding author.Department of Chemistry and Physico-Chemical Processes, Faculty of Materials Science and Technology, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00, Ostrava-Poruba, Czech RepublicInstitute of Inorganic Chemistry of Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava, 84536, Slovakia; Corresponding author.Institute of Inorganic Chemistry of Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava, 84536, SlovakiaDepartment of Chemistry and Physico-Chemical Processes, Faculty of Materials Science and Technology, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00, Ostrava-Poruba, Czech RepublicInstitute of Fundamental Technological Research, Polish Academy of Sciences, Pawińskiego 5B, 02-106, Warsaw, PolandInstitute of Fundamental Technological Research, Polish Academy of Sciences, Pawińskiego 5B, 02-106, Warsaw, PolandInstitute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, JapanInstitute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, JapanInstitute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan; Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, JapanThis study presents a novel, straightforward approach for synthesizing graphitic carbon nitrides (g-C3N4, g-CN) from melamine, requiring merely 30 min of thermal holding at temperatures ranging from 400 to 550 °C in an atmosphere comprising either nitrogen or air. Elemental analysis, X-ray powder diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), diffuse reflectance (UV–Vis DRS), photoluminescence (PL) spectroscopy and scanning electron microscopy (SEM) were employed to assess the quality of the as-prepared powders. Furthermore, theoretical calculations utilizing the Density Functional Theory (DFT) method were conducted to reinforce the experimental findings of the research. A further investigation of the thermal stability of the selected sample was conducted using a unique combination of thermogravimetry–coupled with differential scanning calorimetry, quadrupole mass spectrometry (TG-DSC-MS) and advanced temperature-programmed desorption (TPD) analyzes. The current study focuses on the effect of synthesis conditions (temperature and nitrogen/air environment) on the structure, morphology, and photocatalytic performance of g-C3N4 compounds synthesized using this approach. The g-C3N4-based materials were examined as potential photocatalysts using the acid orange 7 (AO7) photodegradation methodology. To enable comparison of the photodegradation experiments, two separate lamps with wavelengths of 360 nm (UV light) and 420 nm (VIS light) were utilized. The primary objective was to present a novel method for the synthesis of g-C3N4-based materials. This was achieved by demonstrating that organic composites generated at lower temperatures have the best photocatalytic capabilities. Furthermore, the approach to achieving high-quality photocatalysts was shown to be cost-effective, environmentally friendly, and scalable.http://www.sciencedirect.com/science/article/pii/S2590123024013641Melemg-C3N4Acid orange 7Photocatalytic degradationDFT-D3Modeling |
| spellingShingle | Monika Michalska Jiri Pavlovsky Eva Scholtzova Peter Skorna Vlastimil Matejka Kamil Bochenek Amrita Jain Koki Chida Takeharu Yoshii Hirotomo Nishihara A facile approach for fabricating g-C3N4-based materials as metal-free photocatalysts Results in Engineering Melem g-C3N4 Acid orange 7 Photocatalytic degradation DFT-D3 Modeling |
| title | A facile approach for fabricating g-C3N4-based materials as metal-free photocatalysts |
| title_full | A facile approach for fabricating g-C3N4-based materials as metal-free photocatalysts |
| title_fullStr | A facile approach for fabricating g-C3N4-based materials as metal-free photocatalysts |
| title_full_unstemmed | A facile approach for fabricating g-C3N4-based materials as metal-free photocatalysts |
| title_short | A facile approach for fabricating g-C3N4-based materials as metal-free photocatalysts |
| title_sort | facile approach for fabricating g c3n4 based materials as metal free photocatalysts |
| topic | Melem g-C3N4 Acid orange 7 Photocatalytic degradation DFT-D3 Modeling |
| url | http://www.sciencedirect.com/science/article/pii/S2590123024013641 |
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