In Situ g-C3N4@Zno Nanocomposite: One-Pot Hydrothermal Synthesis and Photocatalytic Performance under Visible Light Irradiation
In situ g-C3N4@ZnO nanocomposites (with 0, 1, 3, 5, and 7 wt.% of g-C3N4 in nanocomposite) were synthesized via a one-pot hydrothermal method using precursors of urea, zinc nitrate hexahydrate, and hexamethylenetetramine. The g-C3N4@ZnO nanocomposites were characterized by X-ray diffraction, scannin...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6651633 |
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| author | Lan Anh Luu Thi Mateus Manuel Neto Thang Pham Van Trung Nguyen Ngoc Tuyet Mai Nguyen Thi Xuan Sang Nguyen Cong Tu Nguyen |
| author_facet | Lan Anh Luu Thi Mateus Manuel Neto Thang Pham Van Trung Nguyen Ngoc Tuyet Mai Nguyen Thi Xuan Sang Nguyen Cong Tu Nguyen |
| author_sort | Lan Anh Luu Thi |
| collection | DOAJ |
| description | In situ g-C3N4@ZnO nanocomposites (with 0, 1, 3, 5, and 7 wt.% of g-C3N4 in nanocomposite) were synthesized via a one-pot hydrothermal method using precursors of urea, zinc nitrate hexahydrate, and hexamethylenetetramine. The g-C3N4@ZnO nanocomposites were characterized by X-ray diffraction, scanning electron microscope, diffuse reflectance spectroscopy, and photoluminescence spectroscopy. The photocatalyst activity of g-C3N4@ZnO nanocomposites was evaluated via methylene blue degradation experiment under visible light irradiation. The g-C3N4@ZnO nanocomposites showed an enhancement in photocatalytic activity in comparison to pure ZnO which increased with the g-C3N4 content (1, 3, 5, and 7 wt.%) in nanocomposites. The photocatalytic activity reached the highest efficiency of 96.8% when the content of g-C3N4 was 7.0 wt.%. Nanocomposite having 7.0 wt.% of g-C3N4 also showed good recyclability with degradation efficiency higher than 90% even in the 4th use. The improvement of photocatalytic activity could be attributed to the adsorption ability and effective separation of electron-hole pairs between g-C3N4 and ZnO. This work implies a simple method to in situ prepare the nanocomposite material of g-C3N4 and semiconductors oxide for photocatalyst applications with high efficiency and good recyclability. |
| format | Article |
| id | doaj-art-3928dc9b1a3740ba8009ad645d4736f4 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-3928dc9b1a3740ba8009ad645d4736f42025-02-03T06:43:28ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422021-01-01202110.1155/2021/66516336651633In Situ g-C3N4@Zno Nanocomposite: One-Pot Hydrothermal Synthesis and Photocatalytic Performance under Visible Light IrradiationLan Anh Luu Thi0Mateus Manuel Neto1Thang Pham Van2Trung Nguyen Ngoc3Tuyet Mai Nguyen Thi4Xuan Sang Nguyen5Cong Tu Nguyen6School of Engineering Physics, Hanoi University of Science and Technology, Hanoi, VietnamAgostinho Neto University, University City District, Stadium 11 November Street, Campus University Agostinho Neto, Luanda, AngolaSchool of Engineering Physics, Hanoi University of Science and Technology, Hanoi, VietnamSchool of Engineering Physics, Hanoi University of Science and Technology, Hanoi, VietnamSchool of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, VietnamDepartment of Electronics and Telecommunication, Saigon University, 273 An Duong Vuong, Ward 3, District 5, Ho Chi Minh city 084-08, VietnamSchool of Engineering Physics, Hanoi University of Science and Technology, Hanoi, VietnamIn situ g-C3N4@ZnO nanocomposites (with 0, 1, 3, 5, and 7 wt.% of g-C3N4 in nanocomposite) were synthesized via a one-pot hydrothermal method using precursors of urea, zinc nitrate hexahydrate, and hexamethylenetetramine. The g-C3N4@ZnO nanocomposites were characterized by X-ray diffraction, scanning electron microscope, diffuse reflectance spectroscopy, and photoluminescence spectroscopy. The photocatalyst activity of g-C3N4@ZnO nanocomposites was evaluated via methylene blue degradation experiment under visible light irradiation. The g-C3N4@ZnO nanocomposites showed an enhancement in photocatalytic activity in comparison to pure ZnO which increased with the g-C3N4 content (1, 3, 5, and 7 wt.%) in nanocomposites. The photocatalytic activity reached the highest efficiency of 96.8% when the content of g-C3N4 was 7.0 wt.%. Nanocomposite having 7.0 wt.% of g-C3N4 also showed good recyclability with degradation efficiency higher than 90% even in the 4th use. The improvement of photocatalytic activity could be attributed to the adsorption ability and effective separation of electron-hole pairs between g-C3N4 and ZnO. This work implies a simple method to in situ prepare the nanocomposite material of g-C3N4 and semiconductors oxide for photocatalyst applications with high efficiency and good recyclability.http://dx.doi.org/10.1155/2021/6651633 |
| spellingShingle | Lan Anh Luu Thi Mateus Manuel Neto Thang Pham Van Trung Nguyen Ngoc Tuyet Mai Nguyen Thi Xuan Sang Nguyen Cong Tu Nguyen In Situ g-C3N4@Zno Nanocomposite: One-Pot Hydrothermal Synthesis and Photocatalytic Performance under Visible Light Irradiation Advances in Materials Science and Engineering |
| title | In Situ g-C3N4@Zno Nanocomposite: One-Pot Hydrothermal Synthesis and Photocatalytic Performance under Visible Light Irradiation |
| title_full | In Situ g-C3N4@Zno Nanocomposite: One-Pot Hydrothermal Synthesis and Photocatalytic Performance under Visible Light Irradiation |
| title_fullStr | In Situ g-C3N4@Zno Nanocomposite: One-Pot Hydrothermal Synthesis and Photocatalytic Performance under Visible Light Irradiation |
| title_full_unstemmed | In Situ g-C3N4@Zno Nanocomposite: One-Pot Hydrothermal Synthesis and Photocatalytic Performance under Visible Light Irradiation |
| title_short | In Situ g-C3N4@Zno Nanocomposite: One-Pot Hydrothermal Synthesis and Photocatalytic Performance under Visible Light Irradiation |
| title_sort | in situ g c3n4 zno nanocomposite one pot hydrothermal synthesis and photocatalytic performance under visible light irradiation |
| url | http://dx.doi.org/10.1155/2021/6651633 |
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