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Abioye SO, Majooni Y, Moayedi M, Rezvani H, Kapadia M, Yousefi N. Graphene-based nanomaterials for the removal of emerging contaminants of concern from water and their potential adaptation for point-of-use applications. Chemosphere 2024; 355:141728. [PMID: 38499073 DOI: 10.1016/j.chemosphere.2024.141728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 03/08/2024] [Accepted: 03/14/2024] [Indexed: 03/20/2024]
Abstract
Considering the plethora of work on the exceptional environmental performance of 2D nanomaterials, there is still a missing link in addressing their practical application in point-of-use (POU) water treatment. By reviewing the exceptional environmental performance of 2D nanomaterials with specific emphasis on graphene and its derivatives, this review aims at inspiring further discussions and research in graphene-based POU water treatment with particular focus on the removal of emerging contaminants of concern (ECCs), which is largely missing in the literature. We outlined the prevalence of ECCs in the environment, their health effects both on humans and marine life, and the potential of efficiently removing them from water using three-dimensional graphene-based macrostructures to ensure ease of adsorbent recovery and reuse compared to nanostructures. Given various successful studies showing superior adsorption capacity of graphene nanosheets, we give an account of the recent developments in graphene-based adsorbents. Moreover, several cost-effective materials which can be easily self-assembled with nanosheets to improve their environmental performance and safety for POU water treatment purposes were highlighted. We highlighted the strategy to overcome challenges of adsorbent regeneration and contaminant degradation; and concluded by noting the need for policy makers to act decisively considering the conservative nature of the water treatment industry, and the potential health risks from ingesting ECCs through drinking water. We further justified the need for the development of advanced POU water treatment devices in the face of the growing challenges regarding ECCs in surface water, and the rising cases of drinking water advisories across the world.
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Affiliation(s)
- Samson Oluwafemi Abioye
- Department of Chemical Engineering, Toronto Metropolitan University, 350 Victoria Street, Toronto, M5B 2K3, ON, Canada
| | - Yalda Majooni
- Department of Chemical Engineering, Toronto Metropolitan University, 350 Victoria Street, Toronto, M5B 2K3, ON, Canada; Department of Aerospace Engineering, Toronto Metropolitan University, 350 Victoria Street, Toronto, M5B 2K3, ON, Canada
| | - Mahsa Moayedi
- Department of Chemical Engineering, Toronto Metropolitan University, 350 Victoria Street, Toronto, M5B 2K3, ON, Canada
| | - Hadi Rezvani
- Department of Chemical Engineering, Toronto Metropolitan University, 350 Victoria Street, Toronto, M5B 2K3, ON, Canada
| | - Mihir Kapadia
- Department of Chemical Engineering, Toronto Metropolitan University, 350 Victoria Street, Toronto, M5B 2K3, ON, Canada
| | - Nariman Yousefi
- Department of Chemical Engineering, Toronto Metropolitan University, 350 Victoria Street, Toronto, M5B 2K3, ON, Canada.
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Shoran S, Dahiya S, Singh S, Chaudhary S, Nehra SP, Sharma A. Unleashing the visible light-exposed photocatalytic potential of V 2O 5/g-C 3N 4 nanocomposites for dye industries wastewater cleaner production. Chemosphere 2023; 345:140452. [PMID: 37852386 DOI: 10.1016/j.chemosphere.2023.140452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 10/03/2023] [Accepted: 10/12/2023] [Indexed: 10/20/2023]
Abstract
Dealing harmful dye-containing effluent from the textile sector significantly contributes to water contamination. The persistence of these dyes in wastewater complicates traditional treatment approaches, emphasizing the necessity for efficient photocatalytic materials for dye pollution degradation. Due to its unique features, V2O5/g-C3N4 nanocomposites are discovered as promising photocatalysts in this area. The V205 nanoparticles act as electron acceptors, while g-C3N4 acts as electron donors, thus encouraging charge separation and increasing photocatalytic activity. The V2O5/g-C3N4 nanocomposites are characterized using XRD, FTIR spectroscopy, SEM, TEM, XPS, and UV-DRS. Cationic dyes, anionic dyes and mix dyes (1:1 mixture of cationic and anionic dyes) are used to test the photocatalytic activity of the nanocomposites. Photocatalytic activity shows that V2O5/g-C3N4 nanocomposites are more active than their precursors. The V5G-2 nanocomposite degrades anionic (Rose Bengal (85.1%) and Xylenol Orange (77.6%), cationic (Auramine O (75% and Crystal Violet (79.5%), and mixed dyes (81%), after 120 min of irradiation. This study introduces a novel technique for synthesizing V2O5/g-C3N4 nanocomposites using solvothermal and ultrasonic processes. The findings of this research provide significant knowledge for the development of photocatalysts with enhanced efficiency in the degradation of dye pollutants.
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Affiliation(s)
- Sachin Shoran
- Centre of Excellence for Energy and Environmental Studies, Deenbandhu Chhotu Ram University of Science and Technology, Murthal, 131039, India
| | - Sweety Dahiya
- Centre of Excellence for Energy and Environmental Studies, Deenbandhu Chhotu Ram University of Science and Technology, Murthal, 131039, India
| | - Saravjeet Singh
- Department of Biomedical Engineering, Deenbandhu Chhotu Ram University of Science and Technology, Murthal, 131039, India
| | - Sudesh Chaudhary
- Centre of Excellence for Energy and Environmental Studies, Deenbandhu Chhotu Ram University of Science and Technology, Murthal, 131039, India.
| | - S P Nehra
- Centre of Excellence for Energy and Environmental Studies, Deenbandhu Chhotu Ram University of Science and Technology, Murthal, 131039, India.
| | - Anshu Sharma
- Department of Physics, School of Engineering & Technology, Central University of Haryana, Mahendergarh, 123031, India.
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Chen X, Ai L, Ju P, Fan H. The photocatalytic generation of ammonia contained reusable water from antibiotics wastewater by BiOBr nanostructures with oxygen vacancies. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109792] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Wu L, Pei X, Mei M, Li Z, Lu S. Study on Photocatalytic Performance of Ag/TiO2 Modified Cement Mortar. Materials 2022; 15:ma15114031. [PMID: 35683336 PMCID: PMC9182574 DOI: 10.3390/ma15114031] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 06/01/2022] [Accepted: 06/02/2022] [Indexed: 02/04/2023]
Abstract
In this paper, Ag-TiO2 photocatalysts with different Ag contents (1 mol%–5 mol%) were prepared and applied to cement mortar. The photocatalytic performance of Ag-TiO2 and photocatalytic cement mortar under UV light and simulated solar light was evaluated. The results showed that Ag loading on the surface of TiO2 could reduce its band gap width and increase its absorbance in the visible region, and 2% Ag-TiO2 had the highest photocatalytic activity under UV light, the degradation rate of methyl orange (MO) was 95.5% at 30 min, and the first-order reaction constant k was 0.0980 min−1, which was 61.7% higher than that of TiO2, and 5% Ag-TiO2 had the highest photocatalytic activity under solar light, the degradation rate of methylene blue (MB) was 69.8% at 40 min, and the first-order reaction constant k was 0.0294 min−1, which was 90.9% higher than that of TiO2. The photocatalytic mortar prepared by the spraying method has high photocatalytic performance, The MO degradation rate of sample S2 under UV light was 87.5% after 120 min, MB degradation rate of sample S5 under solar light was 75.4% after 120 min. The photocatalytic reaction conforms to the zero-order reaction kinetics, which was 1.5 times–3.3 times higher than that of the mixed samples and has no effect on the mechanical properties of mortar.
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Affiliation(s)
- Linsong Wu
- School of Urban Construction, Yangtze University, Jingzhou 434023, China; (L.W.); (X.P.); (M.M.); (Z.L.)
| | - Xiaofang Pei
- School of Urban Construction, Yangtze University, Jingzhou 434023, China; (L.W.); (X.P.); (M.M.); (Z.L.)
| | - Mengjun Mei
- School of Urban Construction, Yangtze University, Jingzhou 434023, China; (L.W.); (X.P.); (M.M.); (Z.L.)
| | - Zhen Li
- School of Urban Construction, Yangtze University, Jingzhou 434023, China; (L.W.); (X.P.); (M.M.); (Z.L.)
- Hubei Key Laboratory of Water System Science for Sponge City Construction, Wuhan University, Wuhan 430072, China
| | - Shiwei Lu
- School of Urban Construction, Yangtze University, Jingzhou 434023, China; (L.W.); (X.P.); (M.M.); (Z.L.)
- Correspondence:
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