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Ghiloufi M, Schnabel T, Mehling S, Kouass S. Investigation of the Effect of Oxide Additives on the Band Gap and Photocatalytic Efficiency of TiO 2 as a Fixed Film. MATERIALS (BASEL, SWITZERLAND) 2024; 17:4671. [PMID: 39336413 PMCID: PMC11434197 DOI: 10.3390/ma17184671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2024] [Revised: 09/19/2024] [Accepted: 09/20/2024] [Indexed: 09/30/2024]
Abstract
The effects of various additives (Y2O3, Ga2O3, and WO3) on photocatalytic degradation efficiency under UV light-emitting diodes (LEDs) and the optical properties of TiO2 Degussa P25 were investigated using ketoprofen and diclofenac, two non-steroidal anti-inflammatory drugs commonly detected in German rivers. Experimental results demonstrated that thin films containing these additives exhibited similar photocatalytic degradation efficiencies as pure TiO2, achieving a 30% degradation of ketoprofen over 150 min. In contrast, the Y2O3/TiO2 thin film showed significantly improved performance, achieving a 46% degradation of ketoprofen in 180 min. Notably, the Y2O3/TiO2 system was three times more effective in degrading diclofenac compared to pure TiO2. Additionally, the Y2O3/TiO2 photocatalyst retained its activity over three successive cycles with only a slight decrease in efficiency. The photocatalytic degradation of both organic pollutants followed first-order kinetics with all photocatalysts. The investigation included SEM imaging to assess the surface homogeneity of the thin films and UV-vis solid-state spectroscopy to evaluate the impact of the additives on the energy band gap of TiO2.
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Affiliation(s)
- Mabrouka Ghiloufi
- Laboratory of Materials: Treatment and Analysis, National Institute of Research and Physico-Chemical Analysis, Faculty of Sciences of Bizerte, Carthage University, Ariana 2020, Tunisia; (M.G.); (S.K.)
| | - Tobias Schnabel
- Research Group “Photonics and Water”, Institute for Sustainable Water Systems, Hof University of Applied Sciences, 95028 Hof, Germany;
| | - Simon Mehling
- Research Group “Photonics and Water”, Institute for Sustainable Water Systems, Hof University of Applied Sciences, 95028 Hof, Germany;
| | - Salah Kouass
- Laboratory of Materials: Treatment and Analysis, National Institute of Research and Physico-Chemical Analysis, Faculty of Sciences of Bizerte, Carthage University, Ariana 2020, Tunisia; (M.G.); (S.K.)
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2
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Bibi M, Rashid J, Siddiqa A, Xu M. The mechanism and reaction kinetics of visible light active bismuth oxide deposited on titanium vanadium oxide for aqueous diclofenac photocatalysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:23228-23246. [PMID: 38413524 DOI: 10.1007/s11356-024-32477-w] [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: 11/27/2023] [Accepted: 02/10/2024] [Indexed: 02/29/2024]
Abstract
Non-uniform, non-spherical bismuth oxide deposited on titanium vanadium oxide (3%-BVT1) was successfully synthesized via co-precipitation method and assessed for visible light degradation of aqueous diclofenac. The synthesized photocatalysts were characterized using X-ray diffraction, diffuse reflectance spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy, and high-resolution transmission electron microscopy. Up to 80.7% diclofenac degradation was observed with a significant increment in reaction rate compared to commercially available Degussa P25 (kapp = 0.0013 → 0.0083 min-1) achieved within 3 h treatment time under optimized parameters of diclofenac concentration (10 mg L-1), catalyst loading (0.1 g L-1), and pH (5). The enhanced photocatalysis could be due to electron-hole separation and contribution of powerful oxidative species •OH > O2•- > h+ > > e-. The recyclability experiments indicate that 3%-BVT1 retained its efficiency up to 74.1% over five reaction cycles. Gas chromatography-mass spectrometry analysis indicated the formation of several transformation products during the degradation pathway. The studies of interfering ions depicted mild interference by sulfates, while interference by phosphates and nitrates was negligible during photocatalytic process, i.e., 70, 78.01, and 78.43% for the selected concentrations of 50, 25, and 40 mg L-1 as per their maximum concentrations detected in the natural wastewaters. Thus, 3%-BVT1 is a potential versatile candidate to treat various organic pollutants including pharmaceuticals.
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Affiliation(s)
- Mehmooda Bibi
- Department of Environmental Sciences, Faculty of Biological Sciences, Quaid-I-Azam University, Islamabad, 45320, Pakistan
| | - Jamshaid Rashid
- Department of Environmental Sciences, Faculty of Biological Sciences, Quaid-I-Azam University, Islamabad, 45320, Pakistan.
- BNU-HKUST Laboratory for Green Innovation, Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, Zhuhai, 519087, China.
| | - Asima Siddiqa
- National Centre for Physics, Quaid-I-Azam University Complex, Islamabad, 45320, Pakistan
| | - Ming Xu
- BNU-HKUST Laboratory for Green Innovation, Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, Zhuhai, 519087, China
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Jayalatha NA, Devatha CP. Experimental investigation for treating ibuprofen and triclosan by biosurfactant from domestic wastewater. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 328:116913. [PMID: 36521217 DOI: 10.1016/j.jenvman.2022.116913] [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: 02/23/2022] [Revised: 11/25/2022] [Accepted: 11/26/2022] [Indexed: 06/17/2023]
Abstract
The presence of emerging pollutants of pharmaceutical products and personal care products (PPCPs) in the aquatic environment overspreads the threat on living beings. Bioremediation is a promising option for treating wastewater. In the present study, an experimental investigation was carried out to produce a biosurfactant by Pseudomonas aeruginosa (MTCC 1688) for the removal of Ibuprofen (IBU) and Triclosan (TCS) from domestic wastewater. It was performed in three stages. Firstly, the production and optimization of biosurfactant was carried out to arrive at the best combination of crude sunflower oil, sucrose and ammonium bicarbonate (10%: 5.5 g/L: 1 g/L) to yield effective biosurfactant production (crude biosurfactant) and further extended to achieve critical micelle concentration (CMC) formation by dilution (biosurfactant at 10.5%). The stability of the biosurfactant was also confirmed. Biosurfactant showed a reduction in the surface tension to 41 mN/m with a yield concentration of 11.2 g/L. Secondly, its effectiveness was evaluated for the removal of IBU and TCS from the domestic wastewater collected during the dry and rainy seasons. Complete removal of IBU was achieved at 36 h & 6 h and TCS at 6 h & 1 h by crude biosurfactant and biosurfactant at CMC formation for the dry season sample. IBU removal was achieved in 2 h by both crude and biosurfactant at CMC and no TCS was detected in the rainy season sample. Thirdly, biotransformation intermediates of IBU and TCS formed during the application of the biosurfactant and degradation pathways are proposed based on the Liquid Chromatography-Mass Spectrometry (LC-MS) and it indicates that there is no formation of toxic by-products. Based on the results, it is evident that biosurfactant at CMC has performed better for the removal of IBU and TCS than crude biosurfactants without any formation of toxic intermediates. Hence, this study proved to be an eco-friendly, cost-effective and sustainable treatment option for domestic wastewater treatment.
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Affiliation(s)
- N A Jayalatha
- Department of Civil Engineering, National Institute of Technology, Karnataka, Surathkal, Mangalore, 575025, Karnataka, India.
| | - C P Devatha
- Department of Civil Engineering, National Institute of Technology, Karnataka, Surathkal, Mangalore, 575025, Karnataka, India.
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Gharibian S, Hazrati H. Towards practical integration of MBR with electrochemical AOP: Improved biodegradability of real pharmaceutical wastewater and fouling mitigation. WATER RESEARCH 2022; 218:118478. [PMID: 35472746 DOI: 10.1016/j.watres.2022.118478] [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: 12/28/2021] [Revised: 03/26/2022] [Accepted: 04/15/2022] [Indexed: 06/14/2023]
Abstract
In the current study, we report enhanced treatment of real pharmaceutical wastewater by integration of Electrooxidation (EO) with Membrane Bio-Reactor (MBR) for the first time. Integrated pre-pilot EO-MBR plant consisted of a 3D printed electrochemical flowcell equipped with graphite electrodes installed in the effluent recirculation line of an MBR equipped with a hollow fiber membrane module. Results demonstrated that 5 V was the optimum voltage level for an isolated EO system. Isolated EO system led to 40% COD removal and 2.5 fold biodegradability index (BOD5/COD) improvement after 24 hr treatment at the optimum voltage of 5 V and 160 mL.min-1 flowrate. Almost complete removal of COD and BOD5 was observed for the EO-MBR system with 160 mL.min-1 recirculation rate and 24 hr HRT, while respective values were 60 and 87% for the MBR system at same operational conditions. Oxidation of pharmaceutical compounds identified in real wastewater and the fate of main oxidation-recalcitrant by-products were confirmed using liquid chromatography techniques. In addition, the integrated EO-MBR system led to significant membrane fouling mitigation with a 28 day extended operational time before reaching the Trans Membrane Pressure (TMP) limit value of 30 kPa. Measurements revealed reduced Extracellular Polymeric Substances (EPS) Concentration of membrane sludge cake layer of EO-MBR along with significant reduction of proteinaceous compounds in the LB-EPS fraction of cake layer in comparison with isolated MBR system. Fouling behavior improvement of the EO-MBR system was attributed to the electrophilic attack of electrochemically generated hydroxyl radicals to the electron-rich moieties of EPS organic foulants. Reduced proteinaceous/humic-like substances of LB-EPS from the cake layer were further confirmed by Emission Excitation matrix (EEM) and Fourier Transform InfraRed (FTIR) spectroscopic methods. The results of current research provide a helpful basis for future studies by elucidating the complex operating/fouling mechanism of integrated Advanced Oxidation Processes (AOPs) with MBR systems for enhanced treatment of organics polluted wastewaters with low biodegradability.
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Affiliation(s)
- Soorena Gharibian
- Faculty of Chemical Engineering, Sahand University of Technology, Sahand New Town, East Azerbaijan, P.O. Box: 51335-1996, Iran; Environmental Engineering Research Center, Sahand University of Technology, Sahand New Town, Iran; Biotechnology Research Center, Sahand University of Technology, Sahand New Town, Iran
| | - Hossein Hazrati
- Faculty of Chemical Engineering, Sahand University of Technology, Sahand New Town, East Azerbaijan, P.O. Box: 51335-1996, Iran; Environmental Engineering Research Center, Sahand University of Technology, Sahand New Town, Iran; Biotechnology Research Center, Sahand University of Technology, Sahand New Town, Iran.
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5
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Shangguan Z, Yuan X, Jiang L, Zhao Y, Qin L, Zhou X, Wu Y, Chew JW, Wang H. Zeolite-based Fenton-like catalysis for pollutant removal and reclamation from wastewater. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.01.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Thomas N, Dionysiou DD, Pillai SC. Heterogeneous Fenton catalysts: A review of recent advances. JOURNAL OF HAZARDOUS MATERIALS 2021; 404:124082. [PMID: 33069994 PMCID: PMC7530584 DOI: 10.1016/j.jhazmat.2020.124082] [Citation(s) in RCA: 199] [Impact Index Per Article: 66.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 09/18/2020] [Accepted: 09/21/2020] [Indexed: 05/17/2023]
Abstract
Heterogeneous Fenton catalysts are emerging as excellent materials for applications related to water purification. In this review, recent trends in the synthesis and application of heterogeneous Fenton catalysts for the abatement of organic pollutants and disinfection of microorganisms are discussed. It is noted that as the complexity of cell wall increases, the resistance level towards various disinfectants increases and it requires either harsh conditions or longer exposure time for the complete disinfection. In case of viruses, enveloped viruses (e.g. SARS-CoV-2) are found to be more susceptible to disinfectants than the non-enveloped viruses. The introduction of plasmonic materials with the Fenton catalysts broadens the visible light absorption efficiency of the hybrid material, and incorporation of semiconductor material improves the rate of regeneration of Fe(II) from Fe(III). A special emphasis is given to the use of Fenton catalysts for antibacterial applications. Composite materials of magnetite and ferrites remain a champion in this area because of their easy separation and reuse, owing to their magnetic properties. Iron minerals supported on clay materials, perovskites, carbon materials, zeolites and metal-organic frameworks (MOFs) dramatically increase the catalytic degradation rate of contaminants by providing high surface area, good mechanical stability, and improved electron transfer. Moreover, insights to the zero-valent iron and its capacity to remove a wide range of organic pollutants, heavy metals and bacterial contamination are also discussed. Real world applications and the role of natural organic matter are summarised. Parameter optimisation (e.g. light source, dosage of catalyst, concentration of H2O2 etc.), sustainable models for the reusability or recyclability of the catalyst and the theoretical understanding and mechanistic aspects of the photo-Fenton process are also explained. Additionally, this review summarises the opportunities and future directions of research in the heterogeneous Fenton catalysis.
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Affiliation(s)
- Nishanth Thomas
- Nanotechnology and Bio-engineering Research Group, Department of Environmental Science, Institute of Technology Sligo, Sligo, Ireland; Centre for Precision Engineering, Materials and Manufacturing Research (PEM), Institute of Technology Sligo, Sligo, Ireland
| | - Dionysios D Dionysiou
- Environmental Engineering and Science Program, Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH, USA
| | - Suresh C Pillai
- Nanotechnology and Bio-engineering Research Group, Department of Environmental Science, Institute of Technology Sligo, Sligo, Ireland; Centre for Precision Engineering, Materials and Manufacturing Research (PEM), Institute of Technology Sligo, Sligo, Ireland.
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7
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Molina CB, Sanz-Santos E, Boukhemkhem A, Bedia J, Belver C, Rodriguez JJ. Removal of emerging pollutants in aqueous phase by heterogeneous Fenton and photo-Fenton with Fe 2O 3-TiO 2-clay heterostructures. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:38434-38445. [PMID: 32418101 DOI: 10.1007/s11356-020-09236-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 05/11/2020] [Indexed: 06/11/2023]
Abstract
Fe2O3-TiO2-clay heterostructures have been prepared using an organo-bentonite as support, which organophilic character favored the fixation of TiO2. Furthermore, Fe2O3 was successfully anchored by wet impregnation. The resulting materials are characterized by a disordered layered structure and a mesoporous texture. The heterostructures were employed as catalysts for the removal of two pharmaceuticals, acetaminophen (ACE) and antipyrine (ANT), by heterogeneous Fenton and photo-Fenton processes. ACE removal under different operation conditions was studied in detail to establish structure-performance relationships, being the TiO2 formation and the developed texture the main factors controlling the activity. ANT showed a higher refractory behavior in oxidation by Fenton. Among the technologies studied, heterogeneous photo-Fenton achieved the best catalytic performance and higher kinetic rate and mineralization degree. Iron leaching was very low, lower than 5% of the initial iron load in all cases. This work demonstrates the potential application of these heterostructures for the removal of emerging pollutants of different nature.
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Affiliation(s)
- Carmen B Molina
- Chemical Engineering Department, Faculty of Sciences, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain.
| | - Eva Sanz-Santos
- Chemical Engineering Department, Faculty of Sciences, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain
| | - Ali Boukhemkhem
- Laboratory Interactions Materials-Environment (LIME), University of Mohamed Seddik Ben Yahia, 18000, Jijel, Algeria
| | - Jorge Bedia
- Chemical Engineering Department, Faculty of Sciences, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain
| | - Carolina Belver
- Chemical Engineering Department, Faculty of Sciences, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain
| | - Juan J Rodriguez
- Chemical Engineering Department, Faculty of Sciences, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain
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Aysan Rahimpour-Javid, Mohammad A. Behnajady. Artificial Neural Network Modelling of Photocatalytic Degradation of Diclofenac as a Pharmaceutical Contaminant. J WATER CHEM TECHNO+ 2020. [DOI: 10.3103/s1063455x20040128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Controlled crystal phase and particle size of loaded-TiO2 using clinoptilolite as support via hydrothermal method for degradation of crystal violet dye in aqueous solution. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2019.06.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Yu X, Cabooter D, Dewil R. Efficiency and mechanism of diclofenac degradation by sulfite/UV advanced reduction processes (ARPs). THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 688:65-74. [PMID: 31229829 DOI: 10.1016/j.scitotenv.2019.06.210] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 06/01/2019] [Accepted: 06/13/2019] [Indexed: 06/09/2023]
Abstract
Diclofenac (DCF) is a non-steroidal anti-inflammatory drug which is frequently detected in the aqueous environment. The synergistic treatment using sulfite and UV irradiation is proposed to be one of the most effective advanced reduction processes (ARPs) to degrade refractory contaminants. This paper systematically investigated the performance and mechanism of DCF degradation by sulfite/UV ARP under various conditions. A significant enhancement in degradation efficiency of DCF was exhibited via sulfite/UV ARP compared with direct UV photolysis, which is primarily due to the generation of reductive radicals (eaq- and H). This process was well described by a pseudo first-order kinetic model with a rate constant of 0.154 min-1. The influence of solution pH, sulfite dosage, initial DCF concentration and UV intensity were evaluated. Results revealed that DCF more favorably reacted with H in an acidic environment than with eaq- under alkaline conditions. A positive impact on the DCF decomposition was observed with increasing sulfite dosage, but with an inhibiting trend at high sulfite concentrations. The degradation rate constant was accelerated by increasing the UV intensity, while decreased by promoting the initial DCF concentration. Degradation mechanisms at different pH levels revealed that the reduction reactions were induced by eaq- at pH 9.2, and dominated by H at pH 6.0. Complete dechlorination was readily achieved with all chlorine atoms in DCF released as chloride ions under sulfite/UV ARP, which may lead to a decreased toxicity of the degradation products. This observation emphasized the advantages of sulfite/UV ARP on DCF degradation, in comparison with that under direct UV photolysis.
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Affiliation(s)
- Xingyue Yu
- KU Leuven, Department of Chemical Engineering, Process and Environmental Technology Lab, J. De Nayerlaan 5, B-2860 Sint-Katelijne-Waver, Belgium; KU Leuven, Department of Pharmaceutical and Pharmacological Sciences, Pharmaceutical Analysis, Herestraat 49, B-3000 Leuven, Belgium
| | - Deirdre Cabooter
- KU Leuven, Department of Pharmaceutical and Pharmacological Sciences, Pharmaceutical Analysis, Herestraat 49, B-3000 Leuven, Belgium
| | - Raf Dewil
- KU Leuven, Department of Chemical Engineering, Process and Environmental Technology Lab, J. De Nayerlaan 5, B-2860 Sint-Katelijne-Waver, Belgium.
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Singh J, Kumar V, Kim KH, Rawat M. Biogenic synthesis of copper oxide nanoparticles using plant extract and its prodigious potential for photocatalytic degradation of dyes. ENVIRONMENTAL RESEARCH 2019; 177:108569. [PMID: 31352301 DOI: 10.1016/j.envres.2019.108569] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 05/23/2019] [Accepted: 07/01/2019] [Indexed: 05/24/2023]
Abstract
The development of benign and efficient approaches for treating industrial grade toxic organic dyes is an ongoing challenge. To this end, copper oxide nanoparticles (CuO NPs) were prepared by a simple, environment friendly, and economical green synthesis procedure by using Psidium guajava leaf extract as reducing agent (i.e., for the reduction of metal salt) as well as capping agent and copper acetate monohydrate as metal salt. The formation of mono-dispersed and spherical (average size 2-6 nm with BET surface area 52.6 m2/g) CuO NPs was confirmed by various spectroscopic and microscopic techniques. The CuO NPs exhibited excellent degradation efficiency for the industrial dyes, i.e., Nile blue (NB) (93% removal in 120 min) and reactive yellow 160 (RY160) (81% removal in 120 min) with apparent rate constants of 0.023 and 0.014 min-1, respectively. The CuO catalyst was found to be reusable for photocatalytic dye degradation even after five consecutive cycles. The limit of detection (LOD) values for NB and RY160 were 4 and 9 mg/L, respectively. In light of their high reusability and photocatalytic efficiency along with adaptability to green synthesis, the use of biogenic CuO NPs is a promising option for the purification of water resources contaminated with industrial dye.
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Affiliation(s)
- Jagpreet Singh
- Department of Nanotechnology, Sri Guru Granth Sahib World University, Fatehgarh Sahib, 140406, Punjab, India
| | - Vanish Kumar
- National Agri-Food Biotechnology Institute (NABI), S.A.S. Nagar, Punjab, 140306, India
| | - Ki-Hyun Kim
- Department of Civil & Environmental Engineering, Hanyang University, Seoul, 04763, South Korea.
| | - Mohit Rawat
- Department of Nanotechnology, Sri Guru Granth Sahib World University, Fatehgarh Sahib, 140406, Punjab, India
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14
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Gupta S, Khandale PB, Chakraborty M. Application of emulsion liquid membrane for the extraction of diclofenac and relationship with the stability of water-in-Oil emulsions. J DISPER SCI TECHNOL 2019. [DOI: 10.1080/01932691.2019.1579655] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Smita Gupta
- Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology Surat, Surat, Gujarat, India
| | - Pritam B. Khandale
- Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology Surat, Surat, Gujarat, India
| | - Mousumi Chakraborty
- Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology Surat, Surat, Gujarat, India
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Soares SF, Fernandes T, Sacramento M, Trindade T, Daniel-da-Silva AL. Magnetic quaternary chitosan hybrid nanoparticles for the efficient uptake of diclofenac from water. Carbohydr Polym 2019; 203:35-44. [DOI: 10.1016/j.carbpol.2018.09.030] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 07/26/2018] [Accepted: 09/16/2018] [Indexed: 01/04/2023]
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16
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Nieto-Sandoval J, Munoz M, de Pedro ZM, Casas JA. Fast degradation of diclofenac by catalytic hydrodechlorination. CHEMOSPHERE 2018; 213:141-148. [PMID: 30216814 DOI: 10.1016/j.chemosphere.2018.09.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 08/29/2018] [Accepted: 09/04/2018] [Indexed: 06/08/2023]
Abstract
Aqueous-phase catalytic hydrodechlorination (HDC) has been scarcely explored in the literature for the removal of chlorinated micropollutants. The aim of this work is to prove the feasibility of this technology for the fast and environmentally-friendly degradation of such kind of compounds. Diclofenac (DCF), a highly consumed anti-inflammatory drug, has been selected as the target pollutant given its toxicity and low biodegradability. The commercial Pd/Al2O3 (1% wt.) catalyst has been used due to its prominent role on this field. Complete degradation of DCF was achieved in a short reaction time (20 min) under ambient conditions (25 °C, 1 atm) at [DCF]0 = 68 μM; [Pd/Al2O3]0 = 0.5 g L-1 and H2 flow rate of 50 N mL min-1. Remarkably, the chlorinated intermediate (2-(2-chloroanilino)-phenylacetate (Cl-APA)) generated along reaction was completely removed at the same time, being the chlorine-free compound 2-anilinophenylacetate (APA) the only final product. A reaction scheme based on this consecutive pathway and a pseudo-first-order kinetic model have been proposed. An apparent activation energy of 43 kJ mol-1 was obtained, a comparable value to those previously reported for conventional organochlorinated pollutants. Remarkably, the catalyst exhibited a reasonable stability upon three successive uses, achieving the complete degradation of the drug and obtaining APA as the final product in 30 min. The evolution of ecotoxicity was intimately related to the disappearance of the chlorinated organic compounds and thus, the final HDC effluents were non-toxic. The versatility of the system was finally demonstrated in different environmentally-relevant matrices (wastewater treatment plant effluent and surface water).
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Affiliation(s)
- Julia Nieto-Sandoval
- Seccion Departamental Ingenieria Quimica, Universidad Autonoma de Madrid, Ctra. Colmenar km 15, 28049 Madrid, Spain.
| | - Macarena Munoz
- Seccion Departamental Ingenieria Quimica, Universidad Autonoma de Madrid, Ctra. Colmenar km 15, 28049 Madrid, Spain
| | - Zahara M de Pedro
- Seccion Departamental Ingenieria Quimica, Universidad Autonoma de Madrid, Ctra. Colmenar km 15, 28049 Madrid, Spain
| | - Jose A Casas
- Seccion Departamental Ingenieria Quimica, Universidad Autonoma de Madrid, Ctra. Colmenar km 15, 28049 Madrid, Spain
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17
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Jiang N, Shang R, Heijman SGJ, Rietveld LC. High-silica zeolites for adsorption of organic micro-pollutants in water treatment: A review. WATER RESEARCH 2018; 144:145-161. [PMID: 30025266 DOI: 10.1016/j.watres.2018.07.017] [Citation(s) in RCA: 171] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 07/05/2018] [Accepted: 07/06/2018] [Indexed: 06/08/2023]
Abstract
High-silica zeolites have been found to be effective adsorbents for the removal of organic micro-pollutants (OMPs) from impaired water, including various pharmaceuticals, personal care products, industrial chemicals, etc. In this review, the properties and fundamentals of high-silica zeolites are summarised. Recent research on mechanisms and efficiencies of OMP adsorption by high-silica zeolites are reviewed to assess the potential opportunities and challenges for the application of high-silica zeolites for OMP adsorption in water treatment. It is concluded that the adsorption capacities are well-related to surface hydrophobicity/hydrophilicity and structural features, e.g. micropore volume and pore size of high-silica zeolites, as well as the properties of OMPs. By using high-silica zeolites, the undesired competitive adsorption of background organic matter (BOM) in natural water could potentially be prevented. In addition, oxidative regeneration could be applied on-site to restore the adsorption capacity of zeolites for OMPs and prevent the toxic residues from re-entering the environment.
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Affiliation(s)
- Nan Jiang
- Department of Water Management, Faculty of Civil Engineering and Geosciences, Delft University of Technology, P.O. Box 5048, 2600, GA Delft, The Netherlands.
| | - Ran Shang
- Department of Water Management, Faculty of Civil Engineering and Geosciences, Delft University of Technology, P.O. Box 5048, 2600, GA Delft, The Netherlands.
| | - Sebastiaan G J Heijman
- Department of Water Management, Faculty of Civil Engineering and Geosciences, Delft University of Technology, P.O. Box 5048, 2600, GA Delft, The Netherlands
| | - Luuk C Rietveld
- Department of Water Management, Faculty of Civil Engineering and Geosciences, Delft University of Technology, P.O. Box 5048, 2600, GA Delft, The Netherlands
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Enhanced photo and sono-photo degradation of crystal violet dye in aqueous solution by 3D flower like F-TiO2(B)/fullerene under visible light. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.07.035] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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19
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Kovacic M, Kopcic N, Kusic H, Bozic AL. Solar driven degradation of 17β-estradiol using composite photocatalytic materials and artificial irradiation source: Influence of process and water matrix parameters. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.05.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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20
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Huang T, Zhang G, Chong S, Liu Y, Zhang N, Fang S, Zhu J. Effects and mechanism of diclofenac degradation in aqueous solution by US/Zn 0. ULTRASONICS SONOCHEMISTRY 2017; 37:676-685. [PMID: 28427682 DOI: 10.1016/j.ultsonch.2017.02.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 02/20/2017] [Accepted: 02/21/2017] [Indexed: 06/07/2023]
Abstract
A system of ultrasound radiation coupled with Zn0 was applied to degrade diclofenac. The effects of initial pH, dosage of Zn0 and ultrasound density were investigated. To further explore the mechanism of the microcosmic reaction, the fresh and used Zn0 powders were characterized by SEM, XRD and XPS. Radical scavengers were used to determine the oxidation performance of strong oxidizing free radicals on diclofenac, including hydroxyl radicals and superoxide radicals. The results showed that the optimum removal of diclofenac reached to over 85% at pH of 2.0 in 15min, with Zn0 dosage of 0.1g/L and ultrasound density of 0.6W/cm3. TOC removal of 72.6% in 15min and dechlorination efficiency of diclofenac reached 70% in 30min. Characterization results showed that a ZnO membrane was generated on the surface of Zn particles after use. According to the mass spectrometry results, several possible pathways of diclofenac degradation were proposed, and most diclofenac was turned into micro-molecules or CO2 finally. The synergistic effect of US/Zn0 in the reactions led to a proposed degradation mechanism in which zinc could directly attack the target contaminant diclofenac because of its good reducibility with the auxiliary functions of ultrasonic irradiation, mechanical shearing and free radical oxidation.
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Affiliation(s)
- Ting Huang
- School of Environment & Natural Resource, Renmin University of China, Beijing 100872, PR China.
| | - Guangming Zhang
- School of Environment & Natural Resource, Renmin University of China, Beijing 100872, PR China.
| | - Shan Chong
- School of Environment & Natural Resource, Renmin University of China, Beijing 100872, PR China.
| | - Yucan Liu
- School of Environment & Natural Resource, Renmin University of China, Beijing 100872, PR China.
| | - Nan Zhang
- School of Environment & Natural Resource, Renmin University of China, Beijing 100872, PR China.
| | - Shunyan Fang
- School of Environment & Natural Resource, Renmin University of China, Beijing 100872, PR China.
| | - Jia Zhu
- School of Construction and Environment Engineering, Shenzhen Polytechnic, Shenzhen 518055, PR China.
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21
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Mirzaei A, Chen Z, Haghighat F, Yerushalmi L. Removal of pharmaceuticals from water by homo/heterogonous Fenton-type processes - A review. CHEMOSPHERE 2017; 174:665-688. [PMID: 28199944 DOI: 10.1016/j.chemosphere.2017.02.019] [Citation(s) in RCA: 239] [Impact Index Per Article: 34.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 02/01/2017] [Accepted: 02/03/2017] [Indexed: 05/27/2023]
Abstract
The presence of emerging contaminants such as pharmaceuticals in natural waters has raised increasing concern due to their frequent appearance and persistence in the aquatic ecosystem and the threat to health and safety of aquatic life, even at trace concentrations. Conventional water treatment processes are known to be generally inadequate for the elimination of these persistent contaminants. Therefore, the use of advanced oxidation processes (AOPs) which are able to efficiently oxidize organic pollutants has attracted a great amount of attention. The main limitation of AOPs lies in their high operating costs associated with the consumption of energy and chemicals. Fenton-based processes, which utilize nontoxic and common reagents and potentially can exploit solar energy, will considerably reduce the removal cost of recalcitrant contaminants. The disadvantages of homogeneous Fenton processes, such as the generation of high amounts of iron-containing sludge and limited operational range of pH, have prompted much attention to the use of heterogeneous Fenton processes. In this review, the impacts of some controlling parameters including the H2O2 and catalyst dosage, solution pH, initial contaminants concentrations, temperature, type of catalyst, intensity of irradiation, reaction time and feeding mode on the removal efficiencies of hetero/homogeneous Fenton processes are discussed. In addition, the combination of Fenton-type processes with biological systems as the pre/post treatment stages in pilot-scale operations is considered. The reported experimental results obtained by using Fenton and photo-Fenton processes for the elimination of pharmaceutical contaminants are also compiled and evaluated.
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Affiliation(s)
- Amir Mirzaei
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada
| | - Zhi Chen
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada.
| | - Fariborz Haghighat
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada
| | - Laleh Yerushalmi
- Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, H3G 1M8, Canada
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Seifollahi Z, Rahbar-Kelishami A. Diclofenac extraction from aqueous solution by an emulsion liquid membrane: Parameter study and optimization using the response surface methodology. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.01.081] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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23
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Reuse of TiO 2 -based catalyst for solar driven water treatment; thermal and chemical reactivation. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2016.10.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Kovacic M, Salaeh S, Kusic H, Suligoj A, Kete M, Fanetti M, Stangar UL, Dionysiou DD, Bozic AL. Solar-driven photocatalytic treatment of diclofenac using immobilized TiO2-based zeolite composites. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:17982-17994. [PMID: 27255319 DOI: 10.1007/s11356-016-6985-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 05/25/2016] [Indexed: 06/05/2023]
Abstract
The study is aimed at evaluating the potential of immobilized TiO2-based zeolite composite for solar-driven photocatalytic water treatment. In that purpose, TiO2-iron-exchanged zeolite (FeZ) composite was prepared using commercial Aeroxide TiO2 P25 and iron-exchanged zeolite of ZSM5 type, FeZ. The activity of TiO2-FeZ, immobilized on glass support, was evaluated under solar irradiation for removal of diclofenac (DCF) in water. TiO2-FeZ immobilized in a form of thin film was characterized for its morphology, structure, and composition using scanning electron microscopy/energy-dispersive x-ray spectroscopy (SEM/EDX). Diffuse reflectance spectroscopy (DRS) was used to determine potential changes in band gaps of prepared TiO2-FeZ in comparison to pure TiO2. The influence of pH, concentration of hydrogen peroxide, FeZ wt% within the composite, and photocatalyst dosage on DCF removal and conversion efficiency by solar/TiO2-FeZ/H2O2 process was investigated. TiO2-FeZ demonstrated higher photocatalytic activity than pure TiO2 under solar irradiation in acidic conditions and presence of H2O2.
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Affiliation(s)
- Marin Kovacic
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, HR-10000, Zagreb, Croatia
| | - Subhan Salaeh
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, HR-10000, Zagreb, Croatia
| | - Hrvoje Kusic
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, HR-10000, Zagreb, Croatia.
| | - Andraz Suligoj
- Laboratory for Environmental Research, University of Nova Gorica, Vipavska 13, SI-5000, Nova Gorica, Slovenia
- Laboratory for Inorganic Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, SI-1001, Ljubljana, Slovenia
| | - Marko Kete
- Laboratory for Environmental Research, University of Nova Gorica, Vipavska 13, SI-5000, Nova Gorica, Slovenia
| | - Mattia Fanetti
- Materials Research Laboratory, University of Nova Gorica, Vipavska 11c, SI-5270, Ajdovscina, Slovenia
| | - Urska Lavrencic Stangar
- Laboratory for Environmental Research, University of Nova Gorica, Vipavska 13, SI-5000, Nova Gorica, Slovenia
| | - Dionysios D Dionysiou
- Environmental Engineering and Science Program, University of Cincinnati, Cincinnati, OH, 45221-0012, USA
| | - Ana Loncaric Bozic
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, HR-10000, Zagreb, Croatia.
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