Novel Removal of Diazinon Pesticide by Adsorption and Photocatalytic Degradation of Visible Light-Driven Fe-TiO2/Bent-Fe Photocatalyst

Autor: Nguyen Minh Phuong, Ngoc Chau Chu, Doan Van Thuan, Minh Ngoc Ha, Nguyen Thi Hanh, Huong Do Thi Viet, Nguyen Thi Minh Thu, Pham Van Quan, Nguyen Thi Thanh Truc
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Journal of Chemistry, Vol 2019 (2019)
Druh dokumentu: article
ISSN: 2090-9063
2090-9071
DOI: 10.1155/2019/2678927
Popis: In the study, Fe was used as a dopant to enhance photocatalytic activity of TiO2. Then, the Fe-doped TiO2 was deposited on bentonite, which was pillared by Fe. The synthesized materials were characterized by SEM, XRD, UV-Vis, BET, and point of zero charge (pHPZC). Then, the synthesized materials were used for diazinon removal under both dark and visible light conditions to investigate adsorption and photocatalytic degradation abilities of the synthesized materials. The maximum diazinon adsorption capacity of the synthesized Fe-TiO2/Bent-Fe was 27.03 mg/g. The obtained results indicated that the Fe-TiO2/Bent-Fe exhibited high photocatalytic degradation activity for removal of diazinon even under visible light. The diazinon removal experiments were also conducted using different photocatalyst dosages, under different pH and light sources to figure the optimal conditions for removal processes. The obtained results indicated that optimal photocatalyst dosage and pH were 0.5 g/L and 4.5, respectively. Finally, the natural light generated from solar could be suitable used for diazinon removal by the synthesized Fe-TiO2/Bent-Fe.
Databáze: Directory of Open Access Journals
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