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Seloglu M, Orhan R, Selen V, Dursun G. Analysis of Photocatalytic Degradation of Phenol by Zinc Oxide Using Response Surface Methodology. ChemistryOpen 2024; 13:e202300238. [PMID: 38195866 PMCID: PMC11164028 DOI: 10.1002/open.202300238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/06/2023] [Indexed: 01/11/2024] Open
Abstract
In this study, the photocatalytic degradation of phenol, which is commonly found in industrial wastewater at high rates, was investigated using a zinc oxide (ZnO) catalyst. It is thought that our findings will contribute to the removal of phenol in industrial wastewater. The experimental study was conducted in a batch-type air-fed cylindrical photocatalytic reactor, and a central composite design (CCD) was chosen and analyzed using response surface methodology (RSM). The study aimed to explore the effects of initial phenol concentration, catalyst concentration, airflow rate, and degradation time on the photocatalytic degradation of phenol and the removal efficiency of total organic carbon (TOC). A quadratic regression model was developed to establish the relationship between phenol degradation, TOC removal effectiveness, and the four factors mentioned. The validity of the model was assessed through an analysis of variance (ANOVA). A good agreement was observed between the model results and the experimental data. As a result of the experiments carried out under optimized conditions, the degradation percentage of phenol was found to be 77.15 %, and the degradation percentage of TOC was 59.87 %. Additionally, pseudo-first-order kinetics were used in the photocatalytic degradation of phenol.
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Affiliation(s)
- Meliha Seloglu
- University of FiratDepartment of Chemical EngineeringElazıgTürkiye
| | - Ramazan Orhan
- University of FiratDepartment of Chemical EngineeringElazıgTürkiye
| | - Veyis Selen
- University of FiratDepartment of BioengineeringElazıgTürkiye
| | - Gülbeyi Dursun
- University of FiratDepartment of Chemical EngineeringElazıgTürkiye
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2
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Narwal N, Katyal D, Kataria N, Rose PK, Warkar SG, Pugazhendhi A, Ghotekar S, Khoo KS. Emerging micropollutants in aquatic ecosystems and nanotechnology-based removal alternatives: A review. CHEMOSPHERE 2023; 341:139945. [PMID: 37648158 DOI: 10.1016/j.chemosphere.2023.139945] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 08/16/2023] [Accepted: 08/22/2023] [Indexed: 09/01/2023]
Abstract
There is a significant concern about the accessibility of uncontaminated and safe drinking water, a fundamental necessity for human beings. This concern is attributed to the toxic micropollutants from several emission sources, including industrial toxins, agricultural runoff, wastewater discharges, sewer overflows, landfills, algal blooms and microbiota. Emerging micropollutants (EMs) encompass a broad spectrum of compounds, including pharmaceutically active chemicals, personal care products, pesticides, industrial chemicals, steroid hormones, toxic nanomaterials, microplastics, heavy metals, and microorganisms. The pervasive and enduring nature of EMs has resulted in a detrimental impact on global urban water systems. Of late, these contaminants are receiving more attention due to their inherent potential to generate environmental toxicity and adverse health effects on humans and aquatic life. Although little progress has been made in discovering removal methodologies for EMs, a basic categorization procedure is required to identify and restrict the EMs to tackle the problem of these emerging contaminants. The present review paper provides a crude classification of EMs and their associated negative impact on aquatic life. Furthermore, it delves into various nanotechnology-based approaches as effective solutions to address the challenge of removing EMs from water, thereby ensuring potable drinking water. To conclude, this review paper addresses the challenges associated with the commercialization of nanomaterial, such as toxicity, high cost, inadequate government policies, and incompatibility with the present water purification system and recommends crucial directions for further research that should be pursued.
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Affiliation(s)
- Nishita Narwal
- University School of Environment Management, Guru Gobind Singh Indraprastha University, Sector 16-C, Dwarka, 110078, New Delhi, India
| | - Deeksha Katyal
- University School of Environment Management, Guru Gobind Singh Indraprastha University, Sector 16-C, Dwarka, 110078, New Delhi, India.
| | - Navish Kataria
- Department of Environmental Sciences, J.C. Bose University of Science and Technology, YMCA, Faridabad, 121006, Haryana, India.
| | - Pawan Kumar Rose
- Department of Energy and Environmental Sciences, Chaudhary Devi Lal University, Sirsa, 125055, Haryana, India
| | - Sudhir Gopalrao Warkar
- Department of Applied Chemistry, Delhi Technological University, Shahbad Daulatpur Village, Rohini, 110042, New Delhi, India
| | - Arivalagan Pugazhendhi
- Emerging Materials for Energy and Environmental Applications Research Group, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Viet Nam
| | - Suresh Ghotekar
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, 603103, Tamil Nadu, India
| | - Kuan Shiong Khoo
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan.
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3
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Sharifi Teshnizi M, Karimi M. TiO 2/graphene composite nanofibers for efficient photocatalytic degradation of pharmaceutical compounds: Rifampin, Phenazopyridine, Azathioprine. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:107956-107969. [PMID: 37747607 DOI: 10.1007/s11356-023-29869-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 09/10/2023] [Indexed: 09/26/2023]
Abstract
Pharmaceutical wastewater treatment is an essential component of environmental protection and sustainable development. In this study, our aim was to investigate the morphology, characterization, and effectiveness of TiO2/graphene composite nanofiber photocatalysts in the treatment of pharmaceutical wastewater containing three different pharmaceutical groups, such as an antibiotic (rifampin), painkiller (phenazopyridine), and immunosuppressant (azathioprine). Various parameters such as pH, salt concentration, and initial pharmaceutical compound concentration were optimized to achieve maximum degradation kinetics and efficiency. The optimum conditions were determined to be 1.5% graphene content, 30 ppm initial concentration of pharmaceutical compound, pH=5, and a 0.5 g/L photocatalyst dose. The presence of salt slightly decreased the degradation kinetics, but it did not significantly affect the performance of the TiO2/graphene composite nanofibers photocatalyst. At optimum condition, TiO2/1.5% graphene composite nanofibers degraded 50% of phenazopyridine, 86.89% of rifampin, and completely azathioprine. Comparing with phenazopyridine, N heteroatom-rich molecule of azathioprine and hydroxyl-rich molecule of rifampin lead to being susceptible to photocatalytic degradation. The reuse of the photocatalyst in multiple cycles showed consistent performance, indicating its potential for practical and economic applications.
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Affiliation(s)
- Masoumeh Sharifi Teshnizi
- Department of Textile Engineering, School of Materials and Advanced Processes Engineering, Amirkabir University of Technology, Tehran Polytechnic, Tehran, 15914, Iran
| | - Mohammad Karimi
- Department of Textile Engineering, School of Materials and Advanced Processes Engineering, Amirkabir University of Technology, Tehran Polytechnic, Tehran, 15914, Iran.
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4
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Sarvothaman VP, Velisoju VK, Subburaj J, Panithasan MS, Kulkarni SR, Castaño P, Turner J, Guida P, Roberts WL, Nagarajan S. Is cavitation a truly sensible choice for intensifying photocatalytic oxidation processes? - Implications on phenol degradation using ZnO photocatalysts. ULTRASONICS SONOCHEMISTRY 2023; 99:106548. [PMID: 37556973 PMCID: PMC10433233 DOI: 10.1016/j.ultsonch.2023.106548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/30/2023] [Accepted: 08/01/2023] [Indexed: 08/11/2023]
Abstract
Phenols are recalcitrant compounds that constitute the majority of organic contaminants in industrial wastewaters. Their removal at large scales require a combination of various processes to reach the desired discharge quality. An extensive body of work has already been published in the area of phenol removal from wastewater, however none of them have focussed on a truly 'sensible' approach for coupling advanced oxidation processes (AOPs). Rather, a higher removal efficiency was targeted by unduly complicating the process by combining multiple AOPs. The most influential AOP as the primary method typically driven by the nature of the pollutant should form the basis for a hybrid AOP followed by a complementary AOP to intensify the oxidation process. This strategy is lacking in current literature. We address this knowledge gap directly by systematically identifying the best hybrid process for ZnO mediated photocatalysis of phenol. Either a cavitation mediated pre-treatment of ZnO or cavitation-photocatalysis-peroxide based hybrid AOP was investigated. While the pre-treatment approach led to >25% increase in phenol oxidation compared to bare ZnO photocatalysis, the hydrodynamic cavitation-photocatalysis-peroxide based system was found to have a cavitational yield 5 times higher than its acoustic cavitation counterpart. A new phenomenon known as the 'pseudo staggered effect' was also observed and established in hydrodynamic cavitation mediated photocatalysis-peroxide hybrid process for the first time. While we demonstrated that cavitation is a truly 'sensible' choice to enhance photocatalysis, the nature of the pollutant under investigation must always be the key driver when designing such hybrid AOPs.
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Affiliation(s)
- Varaha P Sarvothaman
- Clean Combustion Research Center (CCRC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Vijay K Velisoju
- Multiscale Reaction Engineering (MuRE) Group, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Janardhanraj Subburaj
- Clean Combustion Research Center (CCRC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Mebin S Panithasan
- Clean Combustion Research Center (CCRC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Shekhar R Kulkarni
- Multiscale Reaction Engineering (MuRE) Group, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
| | - Pedro Castaño
- Multiscale Reaction Engineering (MuRE) Group, KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - James Turner
- Clean Combustion Research Center (CCRC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Paolo Guida
- Clean Combustion Research Center (CCRC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - William L Roberts
- Clean Combustion Research Center (CCRC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
| | - Sanjay Nagarajan
- Department of Chemical Engineering, University of Bath, Claverton Down, Bath BA2 7AY, UK; Centre for Sustainable Energy Systems, University of Bath, Claverton Down, Bath BA2 7AY, UK.
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5
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Binazadeh M, Rasouli J, Sabbaghi S, Mousavi SM, Hashemi SA, Lai CW. An Overview of Photocatalytic Membrane Degradation Development. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16093526. [PMID: 37176408 PMCID: PMC10180107 DOI: 10.3390/ma16093526] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/09/2023] [Accepted: 03/27/2023] [Indexed: 05/15/2023]
Abstract
Environmental pollution has become a worldwide issue. Rapid industrial and agricultural practices have increased organic contaminants in water supplies. Hence, many strategies have been developed to address this concern. In order to supply clean water for various applications, high-performance treatment technology is required to effectively remove organic and inorganic contaminants. Utilizing photocatalytic membrane reactors (PMRs) has shown promise as a viable alternative process in the water and wastewater industry due to its efficiency, low cost, simplicity, and low environmental impact. PMRs are commonly categorized into two main categories: those with the photocatalyst suspended in solution and those with the photocatalyst immobilized in/on a membrane. Herein, the working and fouling mechanisms in PMRs membranes are investigated; the interplay of fouling and photocatalytic activity and the development of fouling prevention strategies are elucidated; and the significance of photocatalysis in membrane fouling mechanisms such as pore plugging and cake layering is thoroughly explored.
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Affiliation(s)
- Mojtaba Binazadeh
- Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz 71557-13876, Iran
| | - Jamal Rasouli
- Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz 71557-13876, Iran
| | - Samad Sabbaghi
- Department of Nano-Chemical Engineering, Faculty of Advanced Technologies, Shiraz University, Shiraz 71557-13876, Iran
| | - Seyyed Mojtaba Mousavi
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei City 106335, Taiwan
| | - Seyyed Alireza Hashemi
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, BC V1V 1V7, Canada
| | - Chin Wei Lai
- Nanotechnology & Catalysis Research Centre, University Malaya, Kuala Lumpur 50603, Malaysia
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6
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Shanthini K, Anitha C, Alphonse NR, Velmurugan K, Selvam V. GO-CNT/AgI nanocomposites: A facile synthesis and environmentally friendly method to removal of organic pollutants. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
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7
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Tartaya S, Bagtache R, Djaballah A, Özacar M, Trari M. Synthesis of KVPO4F and its Physical and Photo-electrochemical Properties: Application to Degradation of Methyl Violet. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2023]
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8
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CuO/ZnO/CQDs@PAN Nanocomposites with Ternary Heterostructures for Enhancing Photocatalytic Performance. Catalysts 2023. [DOI: 10.3390/catal13010110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Photocatalysis is a green technology. In this paper, CuO/ZnO/carbon quantum dots (CQDs)@PAN nanocomposites with ternary heterostructures (CZC@PAN)—as high-performance environmentally friendly nanophotocatalysts—were prepared by electrospinning, heat treatment, and hydrothermal synthesis in sequence, and their practical applications were investigated by degrading methylene blue (MB). The synergistic effects of components in ternary heterostructures on the morphology, structure, and photocatalytic performance of CZC@PAN were analyzed, and their photocatalytic mechanism was further discussed. The results showed that due to the formation of p-n heterojunctions and the loading of CQDs and CZC@PAN had excellent photocatalytic degradation performance, and its photocatalytic degradation rate for MB reached 99.56% under natural sunlight for 4 h.
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9
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Photocatalytic oxidation of oxytetracycline hydrochloride by using natural marine material supported perovskite composites. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Somu P, Narayanasamy S, Gomez LA, Rajendran S, Lee YR, Balakrishnan D. Immobilization of enzymes for bioremediation: A future remedial and mitigating strategy. ENVIRONMENTAL RESEARCH 2022; 212:113411. [PMID: 35561819 DOI: 10.1016/j.envres.2022.113411] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/19/2022] [Accepted: 04/29/2022] [Indexed: 06/15/2023]
Abstract
Over the years, extensive urbanization and industrialization have led to xenobiotics contamination of the environment and also posed a severe threat to human health. Although there are multiple physical and chemical techniques for xenobiotic pollutants management, bioremediation seems to be a promising technology from the environmental perspective. It is an eco-friendly and low-cost method involving the application of microbes, plants, or their enzymes to degrade xenobiotics into less toxic or non-toxic forms. Moreover, bioremediation involving enzymes has gained an advantage over microorganisms or phytoremediation due to better activity for pollutant degradation with less waste generation. However, the significant disadvantages associated with the application of enzymes are low stability (storage, pH, and temperature) as well as the low possibility of reuse as it is hard to separate from reaction media. The immobilization of enzymes without affecting their activity provides a possible solution to the problems and allows reusability by easing the process of separation with improved stability to various environmental factors. The present communication provides an overview of the importance of enzyme immobilization in bioremediation, carrier selection, and immobilization methods, as well as the pros and cons of immobilization and its prospects.
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Affiliation(s)
- Prathap Somu
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea; Department of Bioengineering, Institute of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 600124, India
| | - Saranya Narayanasamy
- Department of Bioengineering, Institute of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 600124, India
| | - Levin Anbu Gomez
- Department of Biotechnology, Karunya Institute of Technology and Sciences (Deemed to Be University), Coimbatore, 641114, India
| | - Saravanan Rajendran
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez 1775, Arica, Chile
| | - Yong Rok Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
| | - Deepanraj Balakrishnan
- College of Engineering, Prince Mohammad Bin Fahd University, Al Khobar, 31952, Saudi Arabia.
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11
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Zekkari M, Ouargli-Saker R, Boudissa F, Lachachi AK, El Houda Sekkal KN, Tayeb R, Boukoussa B, Azzouz A. Silica-catalyzed ozonation of 17α -ethinyl-estradiol in aqueous media-to better understand the role of silica in soils. CHEMOSPHERE 2022; 298:134312. [PMID: 35304212 DOI: 10.1016/j.chemosphere.2022.134312] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 02/08/2022] [Accepted: 03/11/2022] [Indexed: 06/14/2023]
Abstract
A promising route for thorough removal of 17α-ethinyl estradiol (EE2) from aqueous media was achieved through ozonation using mesoporous silicas such SBA-15, SBA-16, MCM-41 and MCM-48 as catalysts. Comparison with aluminosilicates along with Zeta potential and particle size measurements allowed demonstrating that EE2 interaction with silanols and hydrophobic -Si-O-Si- groups are essential requirements for the catalytic activity. Acid-base interactions, if any, should have minor contribution. EE2 hydroxylation appears to be an early step in the ozonation on all catalysts, but MCM-41 showed increased activity in phenolic ring cleavage. Confrontation of HPLC-UV and UV-Vis and HPLC-UV measurements revealed highest catalytic activity for MCM-41 and to a lesser extend of MCM-48 due to their higher specific surface area and weaker acid character. These results provide valuable findings for judiciously tailoring optimum [EE2-Silica:Water] interactions for thorough oxidative degradation of endocrine disrupting compounds (EDC).
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Affiliation(s)
- Meriem Zekkari
- Nanoqam, Department of Chemistry, University of Quebec at Montreal, H3C3P8, Canada; Laboratoire des Sciences, Technologie et Génie des Procédés, Université des Sciences et de La Technologie D'Oran Mohamed Boudiaf, El M'naouer, BP, 1505, Oran, Algeria
| | - Rachida Ouargli-Saker
- Nanoqam, Department of Chemistry, University of Quebec at Montreal, H3C3P8, Canada; Laboratoire des Sciences, Technologie et Génie des Procédés, Université des Sciences et de La Technologie D'Oran Mohamed Boudiaf, El M'naouer, BP, 1505, Oran, Algeria
| | - Farida Boudissa
- Nanoqam, Department of Chemistry, University of Quebec at Montreal, H3C3P8, Canada
| | - Asma Kawther Lachachi
- Nanoqam, Department of Chemistry, University of Quebec at Montreal, H3C3P8, Canada; Laboratoire des Sciences, Technologie et Génie des Procédés, Université des Sciences et de La Technologie D'Oran Mohamed Boudiaf, El M'naouer, BP, 1505, Oran, Algeria
| | - Kawter Nor El Houda Sekkal
- Laboratoire des Sciences, Technologie et Génie des Procédés, Université des Sciences et de La Technologie D'Oran Mohamed Boudiaf, El M'naouer, BP, 1505, Oran, Algeria
| | - Rachida Tayeb
- Laboratoire des Sciences, Technologie et Génie des Procédés, Université des Sciences et de La Technologie D'Oran Mohamed Boudiaf, El M'naouer, BP, 1505, Oran, Algeria
| | - Bouhadjar Boukoussa
- Département de Génie des Matériaux, Faculté de Chimie, Université des Sciences et de La Technologie Mohamed Boudiaf, El-Mnaouer, BP, 1505, Oran, Algeria
| | - Abdelkrim Azzouz
- Nanoqam, Department of Chemistry, University of Quebec at Montreal, H3C3P8, Canada; École de Technologie Supérieure, Montréal, Québec, H3C 1K3, Canada.
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12
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Jia K, Liu G, Lang DN, Chen SF, Yang C, Wu RL, Wang W, Wang JD. Degradation of tetracycline by visible light over ZnO nanophotocatalyst. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104422] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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13
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Photocatalytic activity of ZrO 2/TiO 2/Fe 3O 4 ternary nanocomposite for the degradation of naproxen: characterization and optimization using response surface methodology. Sci Rep 2022; 12:10388. [PMID: 35725903 PMCID: PMC9208713 DOI: 10.1038/s41598-022-14676-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 06/10/2022] [Indexed: 11/24/2022] Open
Abstract
In this study, ZrO2, TiO2, and Fe3O4 components were synthesized by co-precipitation, sol–gel, and co-precipitation methods, respectively. In addition, solid-state dispersion method was used for synthesizing of ZrO2/TiO2/Fe3O4 ternary nanocomposite. The ZrO2/TiO2/Fe3O4 nanocomposite was characterized by different techniques including XRD, EDX, SEM, BET, FTIR, XPS, EELS, and Photoluminescence (PL). The FTIR analysis of ZrO2/TiO2/Fe3O4 photocatalyst showed strong peaks in the range of 450 to 700 cm−1, which represent stretching vibrations of Zr–O, Ti–O, and Fe–O. The results of FTIR and XRD, XPS analyses and PL spectra confirmed that the solid-state dispersion method produced ZrO2/TiO2/Fe3O4 nanocomposites. The EELS analysis confirmed the pure samples of Fe3O4, TiO2 and ZrO2. The EDAX analysis showed that the Zr:Ti:Fe atomic ratio was 0.42:2.08:1.00. The specific surface area, pores volume and average pores size of the photocatalyst were obtained 280 m2/g, 0.92 cm3/g, and 42 nm respectively. Furthermore, the performance of ZrO2/TiO2/Fe3O4 nanocomposite was evaluated for naproxen removal using the response surface method (RSM). The four parameters such as NPX concentration, time, pH and catalyst concentration was investigated. The point of zero charge of the photocatalyst was 6. The maximum and minimum degradation of naproxen using photocatalyst were 100% (under conditions: NPX concentration = 10 mg/L, time = 90 min, pH = 3 and catalyst concentration = 0.5 g/L) and 66.10% respectively. The stability experiment revealed that the ternary nanocatalyst demonstrates a relatively higher photocatalytic activity after 7 recycles.
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14
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Facile construction of sandwich-like composited Sm2MoO6/ZnO/rGO and its activity in photodecomposition ibuprofen. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Saravanan A, Kumar PS, Jeevanantham S, Anubha M, Jayashree S. Degradation of toxic agrochemicals and pharmaceutical pollutants: Effective and alternative approaches toward photocatalysis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 298:118844. [PMID: 35032600 DOI: 10.1016/j.envpol.2022.118844] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 12/27/2021] [Accepted: 01/09/2022] [Indexed: 06/14/2023]
Abstract
Emerging concern regarding the remediation of environmental pollution has expanded tremendously in recent years. Pharmaceutical industries and agricultural sectors release an enormous amount of residues containing toxic pollutants at trace levels which poses a serious impact on the environment and human health. To cope with the effect of hazardous and toxic contaminants, numerous methodologies have been developed for the treatment of effluents released from the agrochemical and pharmaceutical industries. Amongst them, photocatalysis has gained much more attention for the degradation of pollutants due to its low cost, higher capability, green and eco-friendly approaches. Photocatalysts are the substrate that plays a key role in pollutant removal through photocatalysis by accelerating the necessary chemical reactions using a light source. In this review, the recent progress on photocatalysis and its fundamental mechanism in agrochemicals and pharmaceutical pollutant degradation was summarized. This review concisely discusses the incorporation of various metal oxides and nanomaterials into semiconductors for the effective degradation of contaminants. The current status and future research on different sectors and the difficulties in the photocatalytic removal of agrochemical and pharmaceutical pollutants are also reviewed in detail.
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Affiliation(s)
- A Saravanan
- Department of Energy and Environmental Engineering, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India.
| | - S Jeevanantham
- Department of Biotechnology, Rajalakshmi Engineering College, Chennai, 602105, India
| | - M Anubha
- Department of Biotechnology, Rajalakshmi Engineering College, Chennai, 602105, India
| | - S Jayashree
- Department of Biotechnology, Rajalakshmi Engineering College, Chennai, 602105, India
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16
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Sheydaei M, Haseli A, Ayoubi-Feiz B, Vatanpour V. MoS 2/N-TiO 2/Ti mesh plate for visible-light photocatalytic ozonation of naproxen and industrial wastewater: comparative studies and artificial neural network modeling. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:22454-22468. [PMID: 34787809 DOI: 10.1007/s11356-021-17285-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 10/26/2021] [Indexed: 06/13/2023]
Abstract
This paper presents the results of visible-light assisted photocatalytic ozonation for the degradation of naproxen as a model pharmaceutical pollutant from water using MoS2/N-TiO2 immobilized on a titanium mesh plate in addition to treatment of a real industrial wastewater. The batch studies were performed for naproxen degradation by varying the reaction variables such as ozone flow rate, initial pH and pollutant concertation. It was observed that almost 90% degradation was achieved at pH = 4, ozone flow rate = 3 L min-1 and initial naproxen concentration = 5 mg L-1. The catalyst exhibited constant activity even after seven successive cycles. Comparative studies among sorption, ozonation, photocatalysis, catalytic ozonation and photocatalytic ozonation revealed that the later process had the highest degradation of pollutant. Moreover, an artificial neural network (ANN) model was developed to simulate the performance of visible-light photocatalytic ozonation in naproxen degradation. The developed ANN model could estimate the visible-light photocatalytic ozonation process under the different experimental conditions. Finally, the applicability of the photocatalytic ozonation was successfully approved for industrial wastewater treatment. The results showed that the COD removal efficiency reached 65% within 150 min. HIGHLIGHTS: • MoS2/N-TiO2/Ti was synthesized by the quick electrophoretic deposition method. • The catalyst showed good ability in naproxen degradation via visible-light photocatalytic ozonation. • A three-layer artificial neural network model was developed to predict the naproxen degradation. • Naproxen degradation efficiency through the photocatalytic ozonation was higher than the individual methods. • COD of real wastewater was reduced significantly after the visible-light photocatalytic ozonation process.
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Affiliation(s)
- Mohsen Sheydaei
- Department of Applied Chemistry, Faculty of Chemistry, Kharazmi University, 15719-14911, Tehran, Iran.
| | - Ali Haseli
- Department of Applied Chemistry, Faculty of Chemistry, Kharazmi University, 15719-14911, Tehran, Iran
| | - Baharak Ayoubi-Feiz
- Department of Applied Chemistry, Faculty of Chemistry, Kharazmi University, 15719-14911, Tehran, Iran
| | - Vahid Vatanpour
- Department of Applied Chemistry, Faculty of Chemistry, Kharazmi University, 15719-14911, Tehran, Iran
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17
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Uzelac MM, Armaković SJ, Armaković S, Četojević-Simin DD, Agbaba J, Banić ND. The role of environmental waters ionic composition and UV–LED radiation on photodegradation, mineralization and toxicity of commonly used β-blockers. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131579] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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18
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Tang J, Xue Y, Ma C, Zhang S, Li Q. Facile preparation of BiOI/T-ZnOw p–n heterojunction photocatalysts with enhanced removal efficiency for rhodamine B and oxytetracycline. NEW J CHEM 2022. [DOI: 10.1039/d2nj01609e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A BiOI/T-ZnOw p–n heterojunction photocatalyst exhibits excellent degradation activities for rhodamine B and oxytetracycline under visible light irradiation.
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Affiliation(s)
- Jianke Tang
- Department of Chemistry and Chemical Engineering, Taiyuan Institute of Technology, Taiyuan, 030008, P. R. China
- School of Chemical Engineering and Technology, North University of China, Taiyuan, 030051, P. R. China
| | - Yanfeng Xue
- Department of Chemistry and Chemical Engineering, Taiyuan Institute of Technology, Taiyuan, 030008, P. R. China
| | - Chunlei Ma
- Department of Chemistry and Chemical Engineering, Taiyuan Institute of Technology, Taiyuan, 030008, P. R. China
| | - Shengjian Zhang
- Department of Chemistry and Chemical Engineering, Taiyuan Institute of Technology, Taiyuan, 030008, P. R. China
- School of Chemical Engineering and Technology, North University of China, Taiyuan, 030051, P. R. China
| | - Qiaoling Li
- School of Science, North University of China, Taiyuan, 030051, P. R. China
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19
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Majumder A, Saidulu D, Gupta AK, Ghosal PS. Predicting the trend and utility of different photocatalysts for degradation of pharmaceutically active compounds: A special emphasis on photocatalytic materials, modifications, and performance comparison. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 293:112858. [PMID: 34052613 DOI: 10.1016/j.jenvman.2021.112858] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 05/01/2021] [Accepted: 05/19/2021] [Indexed: 06/12/2023]
Abstract
The rapid rise in the healthcare sector has led to an increase in pharmaceutically active compounds (PhACs) in different aqueous bodies. The toxicity of the PhACs and their ability to persist after conventional treatment processes have escalated research in the field of photocatalytic treatment. Although different photocatalysts have been successful in degrading PhACs, their inherent drawbacks have severely limited their application on a large scale. A substantial amount of research has been aimed at overcoming the high cost of the photocatalytic material, low quantum yield, the formation of toxic end products, etc. Hence, to further research in this field, researchers must have a fair idea of the current trends in the application of different photocatalysts. In this article, the trends in the use of various photocatalysts for the removal of different PhACs have been circumscribed. The performance of different groups of photocatalysts to degrade PhACs from synthetic and real wastewater has been addressed. The drawbacks and advantages of these materials have been compared, and their future in the field of PhACs removal has been predicted using S-curve analysis. Zinc and titanium-based photocatalysts were efficient under UV irradiation, while bismuth and graphene-based materials exhibited exemplary performance in visible light. However, iron-based compounds were found to have the most promising future, which may be because of their magnetic properties, easy availability, low bandgap, etc. Different modification techniques, such as morphology modification, doping, heterojunction formation, etc., have also been discussed. This study may help researchers to clarify the current research status in the field of photocatalytic treatment of PhACs and provide valuable information for future research.
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Affiliation(s)
- Abhradeep Majumder
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Duduku Saidulu
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, India
| | - Ashok Kumar Gupta
- Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, India.
| | - Partha Sarathi Ghosal
- School of Water Resources, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, India
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20
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Hammouche J, Daoudi K, Columbus S, Ziad R, Ramachandran K, Gaidi M. Structural and morphological optimization of Ni doped ZnO decorated silicon nanowires for photocatalytic degradation of methylene blue. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108763] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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21
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Mohamed Isa ED, Shameli K, Ch'ng HJ, Che Jusoh NW, Hazan R. Photocatalytic degradation of selected pharmaceuticals using green fabricated zinc oxide nanoparticles. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.05.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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22
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Shubair A, Al-Salih H, Sabouni R, Gomaa H, Hassanin S, Salem S, Zeno T, El Taher B, Zaka A. Photocatalytic demulsification of oil/water emulsions containing nonionic surfactant. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:13124-13132. [PMID: 33174172 DOI: 10.1007/s11356-020-11541-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 11/03/2020] [Indexed: 06/11/2023]
Abstract
Separation of oil-water (OW) emulsions is investigated using a photocatalytic demulsification approach. Experiments were conducted using two types of photocatalysts, namely, ZnO and TiO2. The emulsion samples were prepared with oil to water ratios of 1:3, 1:1, and 3:1 and using nonionic surfactant Tween 20 as an emulsifier. The demulsification efficiency was determined using a direct time varying phase separation measurement, while dynamic light scattering (DLS) and microscope imaging (MI) were used to determine the change in emulsion droplets size. The investigation results showed that all the emulsions were destabilized and separated within 30-90 min with demulsification efficiency that ranged from 38 to 90%. On the other hand, untreated control samples remained stable with no phase separation for more than 24 h. For most of the studied experimental conditions, TiO2 nanoparticles gave better demulsification results than ZnO. Modeling of the batch demulsification kinetics for both systems agreed satisfactorily with the experimental measurements. This could allow its further extension towards design of continuous processes for potential implementation in treatment of industrial oily wastewaters.
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Affiliation(s)
- Asma Shubair
- Department of Chemical Engineering, American University of Sharjah, P.O.Box: 26666, Sharjah, UAE
| | - Hilal Al-Salih
- Department of Chemical Engineering, American University of Sharjah, P.O.Box: 26666, Sharjah, UAE
| | - Rana Sabouni
- Department of Chemical Engineering, American University of Sharjah, P.O.Box: 26666, Sharjah, UAE.
| | - Hassan Gomaa
- Department of Chemical and Biochemical Engineering, Western University, London, Ontario, Canada
| | - Sara Hassanin
- Department of Chemical Engineering, American University of Sharjah, P.O.Box: 26666, Sharjah, UAE
| | - Soha Salem
- Department of Chemical Engineering, American University of Sharjah, P.O.Box: 26666, Sharjah, UAE
| | - Talah Zeno
- Department of Chemical Engineering, American University of Sharjah, P.O.Box: 26666, Sharjah, UAE
| | - Bassam El Taher
- Department of Chemical Engineering, American University of Sharjah, P.O.Box: 26666, Sharjah, UAE
| | - Awais Zaka
- Department of Chemical Engineering, American University of Sharjah, P.O.Box: 26666, Sharjah, UAE
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23
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Wang Y, Hu K, Yang Z, Ye C, Li X, Yan K. Facile Synthesis of Porous ZnO Nanoparticles Efficient for Photocatalytic Degradation of Biomass-Derived Bisphenol A Under Simulated Sunlight Irradiation. Front Bioeng Biotechnol 2021; 8:616780. [PMID: 33520967 PMCID: PMC7841389 DOI: 10.3389/fbioe.2020.616780] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 12/02/2020] [Indexed: 01/08/2023] Open
Abstract
Bisphenol A (BPA) produced from biomass is a typical endocrine disrupting compound that is carcinogenic and genotoxic and can be accumulated in water due to its extensive use and difficult degradation. In this study, the porous ZnO photocatalyst with core-shell structure and large surface area was successfully developed for the efficient photocatalytic degradation of BPA. The various effects of calcination temperatures, BPA concentrations, ZnO dosages, pH and inorganic ions on the degradation performance were systemically studied. The results showed that 99% degradation of BPA was achieved in 1 h using the porous ZnO calcined at 550°C under the conditions of 30 mg/L BPA, 1 g/L ZnO, and pH of 6.5. Besides, the inhibition effects of anions for the photocatalytic removal of BPA decreased in the order of H2PO 4 - >HCO 3 - >SO 4 2 - > Cl-, while the cations K+, Ca2+, and Na+ had little effect on the photocatalytic degradation of BPA. The results of scavenging experiments showed that h+, ·O 2 - , and e- played the key role in the photocatalytic degradation process. Finally, the main pathways of BPA degradation were proposed based on ten intermediates found in the degradation process. This work may provide a good guideline to degrade various endocrine disrupting compounds in wastewater treatment.
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Affiliation(s)
- Yujie Wang
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, China
| | - Kang Hu
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, China
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Guangzhou, China
| | - Zhiyu Yang
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, China
| | - Chenlu Ye
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, China
| | - Xin Li
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, China
| | - Kai Yan
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, China
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24
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Thongpitak J, Pumas P, Pumas C. Paraquat Degradation by Biological Manganese Oxide (BioMnO x ) Catalyst Generated From Living Microalga Pediastrum duplex AARL G060. Front Microbiol 2020; 11:575361. [PMID: 33042090 PMCID: PMC7522373 DOI: 10.3389/fmicb.2020.575361] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 08/24/2020] [Indexed: 11/13/2022] Open
Abstract
Paraquat is a non-selective fast-acting herbicide used to control weeds in agricultural crops. Many years of extensive use has caused environmental pollution and food toxicity. This agrochemical degrades slowly in nature, adsorbs onto clay lattices, and may require environmental remediation. Studies have shown that biosynthesized manganese oxide (BioMnOx) successfully degraded toxic synthetic compounds such as bis-phenol A and diclofenac, thus it has potential for paraquat degradation. In this experiment, P. duplex AARL G060 generated low (9.03 mg/L) and high (42.41 mg/L) concentrations of BioMnOx. The precipitated BioMnOx was observed by scanning electron microscopy (SEM), and the elemental composition was identified as Mn and O by energy-dispersive x-ray spectroscopy (EDS). The potential for BioMnOx to act as a catalyst in the degradation of paraquat was evaluated under three treatments: (1) a negative control (deionized water), (2) living alga with low BioMnOx plus hydrogen peroxide, and (3) living alga with high BioMnOx plus hydrogen peroxide. The results indicate that BioMnOx served as a catalyst in the Fenton-like reaction that could degrade more than 50% of the paraquat within 72 h. A kinetic study indicated that paraquat degradation by Fenton-like reactions using BioMnOx as a catalyst can be described by pseudo-first and pseudo-second order models. The pH level of the BioMnOx catalyst was neutral at the end of the experiment. In conclusion, BioMnOx is a viable and environmentally friendly catalyst to accelerate degradation of paraquat and other toxic chemicals.
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Affiliation(s)
- Jakkapong Thongpitak
- PhD Degree Program in Environmental Science, Environmental Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
| | - Pamon Pumas
- Department of Environmental Science, Faculty of Science and Technology, Chiang Mai Rajabhat University, Chiang Mai, Thailand
| | - Chayakorn Pumas
- Department of Biology, Faculty of Science, Research Center in Bioresources for Agriculture, Industry and Medicine, Chiang Mai University, Chiang Mai, Thailand
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25
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Patterson K, Howlett K, Patterson K, Wang B, Jiang L. Photodegradation of ibuprofen and four other pharmaceutical pollutants on natural pigments sensitized TiO 2 nanoparticles. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2020; 92:1152-1161. [PMID: 32064712 DOI: 10.1002/wer.1310] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 02/03/2020] [Accepted: 02/09/2020] [Indexed: 06/10/2023]
Abstract
Pharmaceuticals and personal care products (PPCPs) in water system have drawn increasing concerns in recent years. TiO2 -based photodegradation has shown great potential as a low-cost and sustainable technology in water treatment, however, can only use the UV light range of solar radiation which makes the system less efficient. Dyes have been studied to improve the TiO2 system light-harvesting range, but studies on environmental friendly natural dyes are rare. In this study, a screening method using UV-Vis spectra analysis was carried out on a group of 22 different tropical natural plants for the potential applications on dye-sensitized TiO2 in PPCP treatment. As a result, Begonia "Martin's Mystery" significantly increased TiO2 photodegradation efficiency toward ibuprofen treatments which is first time reported in literature as our best knowledge. Moreover, the promising discovery of Begonia application in ibuprofen treatment has been successfully applied to warfarin and famotidine treatment. Similar results were expanded to many other Begonia species which indicate that Begonia extracts could be excellent sensitizers for TiO2 -based photodegradation of PPCPs. Our discovery suggested that the screening process may potentially open a brand-new way for future TiO2 photodegradation studies before the complex and time-consuming detailed mechanism studies. PRACTITIONER POINTS.: Natural dyes were screened as sensitizers for TiO2 photodegradation of ibuprofen. Ibuprofen photodegradation efficiency was increased twice using Begonia "Martin's Mystery." The Begonia applications were extended to warfarin, trimethoprim, and famotidine. Promising results were also observed using five other Begonia species.
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Affiliation(s)
- Kristen Patterson
- Division of Natural Sciences, New College of Florida, Sarasota, FL, USA
| | - Kevin Howlett
- Division of Natural Sciences, New College of Florida, Sarasota, FL, USA
| | - Kelsey Patterson
- Division of Natural Sciences, New College of Florida, Sarasota, FL, USA
| | - Bo Wang
- Department of Chemistry, North Carolina A&T State University, Greensboro, NC, USA
| | - Lin Jiang
- Division of Natural Sciences, New College of Florida, Sarasota, FL, USA
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26
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Luu TVH, Luu MD, Dao NN, Le VT, Nguyen HT, Doan VD. Immobilization of C/Ce-codoped ZnO nanoparticles on multi-walled carbon nanotubes for enhancing their photocatalytic activity. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2020.1740728] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Thi Viet Ha Luu
- Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Minh Dai Luu
- Institute of Materials Science, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ngoc Nhiem Dao
- Institute of Materials Science, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Van Thuan Le
- Center for Advanced Chemistry, Institute of Research & Development, Duy Tan University, Danang, Vietnam
| | - Hoai Thuong Nguyen
- Faculty of Electrical Engineering Technology, Industrial University of Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Van Dat Doan
- Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City, Vietnam
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27
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Padilla Villavicencio M, Escobedo Morales A, Ruiz Peralta MDL, Sánchez-Cantú M, Rojas Blanco L, Chigo Anota E, Camacho García JH, Tzompantzi F. Ibuprofen Photodegradation by Ag2O and Ag/Ag2O Composites Under Simulated Visible Light Irradiation. Catal Letters 2020. [DOI: 10.1007/s10562-020-03139-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Shakerian F, Zhao J, Li SP. Recent development in the application of immobilized oxidative enzymes for bioremediation of hazardous micropollutants - A review. CHEMOSPHERE 2020; 239:124716. [PMID: 31521938 DOI: 10.1016/j.chemosphere.2019.124716] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 08/11/2019] [Accepted: 08/29/2019] [Indexed: 05/05/2023]
Abstract
During the past several years, abundant progresses has been made in the development of immobilized oxidative enzymes with focus on finding new support materials, improving the immobilization methods and their applications. Nowadays, immobilized oxidative enzymes are broadly accepted as a green way to face the challenge of high amounts of micropollutants in nature. Among all oxidative enzymes, laccases and horseradish peroxidase were used frequently in recent years as they are general oxidative enzymes with ability to oxidize various types of compounds. Immobilized laccase or horseradish peroxidase are showed better stability, and reusability as well as easy separation from reaction mixture that make them more favorable and economic in compared to free enzymes. However, additional improvements are still essential such as: development of the new materials for immobilization with higher capacity, easy preparation, and cheaper price. Moreover, immobilization methods are still need improving to become more efficient and avoid enzyme wasting during immobilization and enzyme leakage through working cycles.
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Affiliation(s)
- Farid Shakerian
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Jing Zhao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China.
| | - Shao-Ping Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China.
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29
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Overview of Photocatalytic Membrane Reactors in Organic Synthesis, Energy Storage and Environmental Applications. Catalysts 2019. [DOI: 10.3390/catal9030239] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
This paper presents an overview of recent reports on photocatalytic membrane reactors (PMRs) in organic synthesis as well as water and wastewater treatment. A brief introduction to slurry PMRs and the systems equipped with photocatalytic membranes (PMs) is given. The methods of PM production are also presented. Moreover, the process parameters affecting the performance of PMRs are characterized. The applications of PMRs in organic synthesis are discussed, including photocatalytic conversion of CO2, synthesis of KA oil by photocatalytic oxidation, conversion of acetophenone to phenylethanol, synthesis of vanillin and phenol, as well as hydrogen production. Furthermore, the configurations and applications of PMRs for removal of organic contaminants from model solutions, natural water and municipal or industrial wastewater are described. It was concluded that PMRs represent a promising green technology; however, before the application in industry, additional studies are still required. These should be aimed at improvement of process efficiency, mainly by development and application of visible light active photocatalysts and novel membranes resistant to the harsh conditions prevailing in these systems.
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