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Nippes RP, Gomes AD, Macruz PD, de Souza M. Photocatalytic removal of 17β-estradiol from water using a novel bimetallic NiCu/Nb 2O 5 catalyst. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:103731-103742. [PMID: 37688700 DOI: 10.1007/s11356-023-29727-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 09/01/2023] [Indexed: 09/11/2023]
Abstract
The development of effective photocatalytic materials is essential for removing emerging pollutants from aqueous media, such as the hormone 17β-estradiol (E2). In this study, a novel photocatalyst based on niobium pentoxide (Nb2O5) functionalized with nickel (Ni) and copper (Cu) was synthesized for E2 removal. The NiCu/Nb2O5 photocatalyst was prepared using a facile wet impregnation method and characterized by various techniques. The incorporation of Ni and Cu into Nb2O5 reduced the band gap energy from 3.3 to 2.8 eV, enabling efficient utilization of visible light. Moreover, NiCu/Nb2O5 exhibited the highest E2 removal efficiency (82%) under UV-A-assisted conditions at a concentration of 1.5 g L-1. The reaction kinetics were found to follow a second-order model with a rate constant of k = 0.0020 L g-1 min-1, and a plausible reaction mechanism was proposed. Through the study of radical elimination, it was proven that the radical oxidation reaction mechanism predominated in the reaction. The results of the toxicity assays, combined with the TOC parameter, demonstrated the efficacy of photocatalytic degradation in reducing E2. These findings demonstrate the great potential of the NiCu/Nb2O5 photocatalyst for removing persistent pollutants.
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Affiliation(s)
- Ramiro Picoli Nippes
- Chemical Engineering Department of Maringa State University, Maringa, PR, Av. Colombo Zone 7, Brazil, 579087020-900.
| | - Aline Domingues Gomes
- Chemical Engineering Department of Maringa State University, Maringa, PR, Av. Colombo Zone 7, Brazil, 579087020-900
| | - Paula Derksen Macruz
- Chemical Engineering Department of Maringa State University, Maringa, PR, Av. Colombo Zone 7, Brazil, 579087020-900
| | - Marcos de Souza
- Chemical Engineering Department of Maringa State University, Maringa, PR, Av. Colombo Zone 7, Brazil, 579087020-900
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Recent advances in photochemical-based nanomaterial processes for mitigation of emerging contaminants from aqueous solutions. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-022-02627-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Lv Z, Liu P, Zhao Y, Peng C, Meng XY, Pan YX. Visible-light-driven photocatalytic H2 production from H2O boosted by anchoring Pt and CdS nanoparticles on a NaY zeolite. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Hydrogen photo-production from glycerol on platinum, gold and silver-modified TiO2-USY62 catalysts. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.11.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Duong HTT, Duong MTP, Nguyen OK, Le ST, Dang LV, Nguyen BT, Do DV. Photocatalytic Activity of Ti-SBA-15/C3N4 for Degradation of 2,4-Dichlorophenoxyacetic Acid in Water under Visible Light. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2022; 2022:5531219. [PMID: 35360448 PMCID: PMC8964217 DOI: 10.1155/2022/5531219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 02/15/2022] [Accepted: 02/23/2022] [Indexed: 06/14/2023]
Abstract
In the present study, the photocatalytic activity of Ti-SBA-15/C3N4 catalysts was investigated to degrade 2,4-Dichlorophenoxyacetic acid (2,4-D) herbicides in water under visible light irradiation. The catalysts were synthesized via a simple hydrothermal method and characterized by various analytical techniques, including SAXS, N2 adsorption-desorption isotherms, Zeta potential, PL, FT-IR, XRF, TGA, and UV-DRS. Our study indicated that the 2.5Ti-SBA-15/C3N4 had higher efficiency in the degradation of 2,4-D than Ti-SBA-15 and C3N4. The decomposition of 2,4-D reached 60% under 180 minutes of visible light irradiation at room temperature on 2.5Ti-SBA-15/C3N4. Moreover, the degradation of 2,4-D on Ti-SBA-15/C3N4 was pseudo-first-order kinetics with the highest rate constant (0.00484 min-1), which was much higher than that obtained for other photocatalysts reported recently. Furthermore, the catalyst can be reused at least two times for photodegradation of 2,4-D solution under visible light irradiation within a slight decrease in catalytic activity.
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Affiliation(s)
- Hoa T. T. Duong
- Faculty of Chemistry, VNU University of Science, Vietnam National University, Ha Noi 19 Le Thanh Tong Hoan Kiem, Hanoi 100000, Vietnam
| | - Mai T. P. Duong
- Faculty of Chemistry, VNU University of Science, Vietnam National University, Ha Noi 19 Le Thanh Tong Hoan Kiem, Hanoi 100000, Vietnam
| | - Oanh K. Nguyen
- Faculty of Chemistry, VNU University of Science, Vietnam National University, Ha Noi 19 Le Thanh Tong Hoan Kiem, Hanoi 100000, Vietnam
| | - Son T. Le
- Faculty of Chemistry, VNU University of Science, Vietnam National University, Ha Noi 19 Le Thanh Tong Hoan Kiem, Hanoi 100000, Vietnam
| | - Long V. Dang
- Faculty of Chemistry, VNU University of Science, Vietnam National University, Ha Noi 19 Le Thanh Tong Hoan Kiem, Hanoi 100000, Vietnam
| | - Binh T. Nguyen
- Faculty of Chemistry, VNU University of Science, Vietnam National University, Ha Noi 19 Le Thanh Tong Hoan Kiem, Hanoi 100000, Vietnam
| | - Dang V. Do
- Faculty of Chemistry, VNU University of Science, Vietnam National University, Ha Noi 19 Le Thanh Tong Hoan Kiem, Hanoi 100000, Vietnam
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