Vietnamese Montmorillonite Supported ZnO: Preparation, Characterization and Photocatalytic Enhancement in Degradation of Rhodamine B

Tam Thi Bang Dao; Dao Tam Thi Bang; Loan Thi Thu Ha; Ha Loan Thi Thu; Do Trung Nguyen; Nguyen Do Trung; Nhien Hon Le; Le Nhien Hon; Quoc Kien Luu; Luu Quoc Kien; Truong Huu Nguyen; Nguyen Truong Huu; Chi-Nhan Ha-Thuc; Ha-Thuc Chi-Nhan

doi:10.31857/S0453881123040020

Vietnamese Montmorillonite Supported ZnO: Preparation, Characterization and Photocatalytic Enhancement in Degradation of Rhodamine B

Авторлар: 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
Мекемелер:
1. Faculty of Materials Science and Technology, University of Science, VNU-HCM
2. Vietnam National University – Ho Chi Minh City, Linh Trung Ward, Thu Duc District
3. Laboratory of Advanced Materials, University of Science, VNU-HCM
Шығарылым: Том 64, № 4 (2023)
Беттер: 396-397
Бөлім: ARTICLES
URL: https://permmedjournal.ru/0453-8811/article/view/660285
DOI: https://doi.org/10.31857/S0453881123040020
EDN: https://elibrary.ru/RQMLSB
ID: 660285

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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 (ZnO_NP) 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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photocatalyst, UVC irradiation, ZnO nanoparticles, MMT/ZnO, rhodamine B

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Том 65, № 5 (2024)

Vietnamese Montmorillonite Supported ZnO: Preparation, Characterization and Photocatalytic Enhancement in Degradation of Rhodamine B

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Tam Dao

Loan Ha

Do Nguyen

Nhien Le

Quoc Luu

Truong Nguyen

Chi-Nhan Ha-Thuc

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