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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doaj-3928dc9b1a3740ba8009ad645d4736f42021-05-24T00:15:08ZengHindawi LimitedAdvances in Materials Science and Engineering1687-84422021-01-01202110.1155/2021/6651633In 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 PhysicsAgostinho Neto UniversitySchool of Engineering PhysicsSchool of Engineering PhysicsSchool of Chemical EngineeringDepartment of Electronics and TelecommunicationSchool of Engineering PhysicsIn 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 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lan Anh Luu Thi Mateus Manuel Neto Thang Pham Van Trung Nguyen Ngoc Tuyet Mai Nguyen Thi Xuan Sang Nguyen Cong Tu Nguyen |
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 |
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 |
title |
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_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_sort |
in situ g-c3n4@zno nanocomposite: one-pot hydrothermal synthesis and photocatalytic performance under visible light irradiation |
publisher |
Hindawi Limited |
series |
Advances in Materials Science and Engineering |
issn |
1687-8442 |
publishDate |
2021-01-01 |
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. |
url |
http://dx.doi.org/10.1155/2021/6651633 |
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