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Vietnamese Montmorillonite Supported ZnO: Preparation, Characterization and Photocatalytic Enhancement in Degradation of Rhodamine B
- Authors: Dao T.T.1,2, Ha L.T.1,2, Nguyen D.T.1,2, Le N.H.1,2, Luu Q.K.1,2, Nguyen T.H.3,2, Ha-Thuc C.1,2
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Affiliations:
- Faculty of Materials Science and Technology, University of Science, VNU-HCM
- Vietnam National University – Ho Chi Minh City, Linh Trung Ward, Thu Duc District
- Laboratory of Advanced Materials, University of Science, VNU-HCM
- Issue: Vol 64, No 4 (2023)
- Pages: 396-397
- Section: ARTICLES
- URL: https://ruspoj.com/0453-8811/article/view/660285
- DOI: https://doi.org/10.31857/S0453881123040020
- EDN: https://elibrary.ru/RQMLSB
- ID: 660285
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Abstract
In this paper, montmorillonite/ZnO (MMT/ZnO) nanocomposite materials are prepared through chemical method with zinc nitrate and sodium alginate as precursors and stabilizers, respectively. Synthesized photocatalysts are used to degrade rhodamine B (RhB) in dye wastewater. The characteristics of photocatalysts in composition, surface morphology and structure are studied by using energy-dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), and X-ray diffraction (XRD.The intermediates after decomposition are identified by liquid chromatography–mass spectrometry (LC-MS). The results reveal that zinc oxide nanoparticles (ZnONP) with hexagonal wurtzite structure are successfully attached to montmorillonite layers according to the pillar-montmorillonite structure. The degradation efficiency of 10 ppm RhB in the presence of 0.1g/L MMT/ZnO under UVC irradiation for 210 min reaches 95.5%. The photocatalytic enhancement of MMT for ZnO is evaluated with different operational parameters such as excitation source, solution pH, catalyst content, initial solution concentration and inorganic scavengers. The mechanism of the photocatalytic degradation of RhB by MMT/ZnO is briefly discussed in this study.
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About the authors
Tam Thi Bang Dao
Faculty of Materials Science and Technology, University of Science, VNU-HCM; Vietnam National University – Ho Chi Minh City, Linh Trung Ward, Thu Duc District
Author for correspondence.
Email: dtbtam@hcmus.edu.vn
Viet Nam, 700000, Ho Chi Minh City, 227 Nguyen Van Cu Street, Ward 4, District 5; Viet Nam, 700000, Ho Chi Minh City
Loan Thi Thu Ha
Faculty of Materials Science and Technology, University of Science, VNU-HCM; Vietnam National University – Ho Chi Minh City, Linh Trung Ward, Thu Duc District
Email: htcnhan@hcmus.edu.vn
Viet Nam, 700000, Ho Chi Minh City, 227 Nguyen Van Cu Street, Ward 4, District 5; Viet Nam, 700000, Ho Chi Minh City
Do Trung Nguyen
Faculty of Materials Science and Technology, University of Science, VNU-HCM; Vietnam National University – Ho Chi Minh City, Linh Trung Ward, Thu Duc District
Email: htcnhan@hcmus.edu.vn
Viet Nam, 700000, Ho Chi Minh City, 227 Nguyen Van Cu Street, Ward 4, District 5; Viet Nam, 700000, Ho Chi Minh City
Nhien Hon Le
Faculty of Materials Science and Technology, University of Science, VNU-HCM; Vietnam National University – Ho Chi Minh City, Linh Trung Ward, Thu Duc District
Email: htcnhan@hcmus.edu.vn
Viet Nam, 700000, Ho Chi Minh City, 227 Nguyen Van Cu Street, Ward 4, District 5; Viet Nam, 700000, Ho Chi Minh City
Quoc Kien Luu
Faculty of Materials Science and Technology, University of Science, VNU-HCM; Vietnam National University – Ho Chi Minh City, Linh Trung Ward, Thu Duc District
Email: htcnhan@hcmus.edu.vn
Viet Nam, 700000, Ho Chi Minh City, 227 Nguyen Van Cu Street, Ward 4, District 5; Viet Nam, 700000, Ho Chi Minh City
Truong Huu Nguyen
Laboratory of Advanced Materials, University of Science, VNU-HCM; Vietnam National University – Ho Chi Minh City, Linh Trung Ward, Thu Duc District
Email: htcnhan@hcmus.edu.vn
Viet Nam, 700000, Ho Chi Minh City, 227 Nguyen Van Cu Street, Ward 4, District 5; Viet Nam, 700000, Ho Chi Minh City
Chi-Nhan Ha-Thuc
Faculty of Materials Science and Technology, University of Science, VNU-HCM; Vietnam National University – Ho Chi Minh City, Linh Trung Ward, Thu Duc District
Author for correspondence.
Email: htcnhan@hcmus.edu.vn
Viet Nam, 700000, Ho Chi Minh City, 227 Nguyen Van Cu Street, Ward 4, District 5; Viet Nam, 700000, Ho Chi Minh City
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