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Fu X, Kong Y, Wang M, Cai T, Zeng Q. MXene derived Ti 3C 2/TiO 2/Ag persistent photocatalyst with enhanced electron storage capacity for round-the-clock degradation of organic pollutant. J Colloid Interface Sci 2023; 656:233-240. [PMID: 37989056 DOI: 10.1016/j.jcis.2023.11.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 11/09/2023] [Accepted: 11/12/2023] [Indexed: 11/23/2023]
Abstract
Persistent photocatalysis has garnered significant attention due to its ability to sustain catalytic activity in dark by storing electrons. However, the practical application of persistent photocatalysis is hindered by limited electron storage capacity. Herein, we synthesized and demonstrated that Ti3C2/TiO2/Ag persistent photocatalyst has good electron storage capability. The electron storage capacity of Ti3C2/TiO2/Ag is up to 0.125 μmol/mg, which is 2.5 times that of Ti3C2/TiO2. The enhanced electron storage capacity resulted in improved dark-reaction activity because more electrons react with oxygen to form more radicals, as evidenced by degradation experiments of various organics. Especially, persistent photocatalytic degradation of tetracycline hydrochloride by Ti3C2/TiO2/Ag was achieved under natural outdoor conditions (from 2:00p.m. to 8:00p.m.). Additionally, the aid of oxidants such as peroxymonosulfate (PMS) can further improve the dark-reaction activity. TiO2/Ti3C2/Ag/PMS system exhibits excellent efficacy in removing tetracycline hydrochloride, oxytetracycline, rhodamine b, methyl orange, and methylene blue, with removal rates reaching 79.5 %, 81.4 %, 98.9 %, 99.1 %, and 99.2 %, respectively (15 min of light-reaction and 45 min of dark-reaction). This work provides a new strategy to enhance electron storage capacity and demonstrates that decoupling of light-reaction and dark-reaction may provide a new opportunity for photocatalytic removal of pollutants around the clock.
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Affiliation(s)
- Xijun Fu
- School of Resources Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China
| | - Yajing Kong
- School of Resources Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China
| | - Minjie Wang
- School of Resources Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China
| | - Tao Cai
- School of Resources Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China.
| | - Qingyi Zeng
- School of Resources Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China
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2
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Preparation of S-Scheme g-C3N4/ZnO Heterojunction Composite for Highly Efficient Photocatalytic Destruction of Refractory Organic Pollutant. Catalysts 2023. [DOI: 10.3390/catal13030485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023] Open
Abstract
In this study, graphitic carbon nitride (g-C3N4)-based ZnO heterostructure was synthesized using a facile calcination method with urea and zinc nitrate hexahydrate as the initiators. According to the scanning electron microscopic (SEM) images, spherical ZnO particles can be seen along the g-C3N4 nanosheets. Additionally, the X-ray diffraction (XRD) analysis reveals the successful synthesis of the g-C3N4/ZnO. The photocatalytic activity of the synthesized catalyst was tested for the decolorization of crystal violet (CV) as an organic refractory contaminant. The impacts of ZnO molar ratio, catalyst amount, CV concentration, and H2O2 concentration on CV degradation efficiency were investigated. The obtained outcomes conveyed that the ZnO molar ratio in the g-C3N4 played a prominent role in the degradation efficiency, in which the degradation efficiency reached 95.9% in the presence of 0.05 mmol of ZnO and 0.10 g/L of the catalyst in 10 mg/L of CV through 120 min under UV irradiation. Bare g-C3N4 was also tested for dye decolorization, and a 76.4% dye removal efficiency was obtained. The g-C3N4/ZnO was also tested for adsorption, and a 32.3% adsorption efficiency was obtained. Photocatalysis, in comparison to adsorption, had a dominant role in the decolorization of CV. Lastly, the results depicted no significant decrement in the CV degradation efficiency in the presence of the g-C3N4/ZnO photocatalyst after five consecutive runs.
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Radia D, Fouzia T, Rachida R, Wahib NM, Bentahar F. Photocatalysis process to treat polluted water by azo dye Cibacron Brilliant Yellow 3G-P. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 86:1774-1789. [PMID: 36240311 DOI: 10.2166/wst.2022.301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The main objective of this study was to investigate the photodegradation of azo dye Cibacron Brilliant Yellow 3G-P using Anatase, Degussa-P25 and ZnO. These semi-conductors were characterized using XRD, BET and TEM-EDX. The variation of the amount of semi-conductors significantly affect the rate of color removal. The decolorization rate increased as the catalyst dosage was increased. Other parameters were also studied, such as stirring speed, pH, and initial dye concentration. It was found that the rate of decolorization increases with the increase of stirring speed. Decolorization of about 30, 60 and 80% was respectively achieved in the case of Anatase, Degussa-P25 and ZnO at low stirring speed (50rpm). At pH = 3, the degradation rate was found to be higher than the alkaline pH, about 95.58 and 85.71% of color has been decolorized with Anatase and Degussa-P25 respectively. While using ZnO, the color removal reached maximum in acidic and alkaline solutions, more than 95% of dye was decolorized. The concentrations dye solutions less than 80ppm led to the removal rate of about 95% in the case of ZnO, while it was only about 8-15% in the case of TiO2 with the concentration more than 20 ppm.
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Affiliation(s)
- Djouder Radia
- Laboratoire Phénomènes de transfert (LPDT), Université des Sciences et de la Technologie Houari Boumediene (USTHB), Bab-Ezzouar 16111, Algiers, Algeria; Centre de Développement des Énergies Renouvelables (CDER), Algiers 16340, Algeria
| | - Touahra Fouzia
- Research Centre in Analytical Chemistry and Physics (CRAPC), BP 248, Algiers 16004, Algeria E-mail:
| | - Rihani Rachida
- Laboratoire Phénomènes de transfert (LPDT), Université des Sciences et de la Technologie Houari Boumediene (USTHB), Bab-Ezzouar 16111, Algiers, Algeria
| | - Naceur Mohamed Wahib
- Laboratoire Eau, Environnement, et Developpement Durable (2E2D), Chemical Engineering Department, Blida1 University, BP 270 Blida, Algeria
| | - Fatiha Bentahar
- Laboratoire Phénomènes de transfert (LPDT), Université des Sciences et de la Technologie Houari Boumediene (USTHB), Bab-Ezzouar 16111, Algiers, Algeria
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Bousalah D, Zazoua H, Boudjemaa A, Benmounah A, Messaoud-Boureghda MZ, Bachari K. Enhanced reactivity of the CuO-Fe 2O 3 intimate heterojunction for the oxidation of quinoline yellow dye (E104). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:69988-69999. [PMID: 35581465 DOI: 10.1007/s11356-022-20453-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 04/21/2022] [Indexed: 06/15/2023]
Abstract
This research work describes the degradation of quinoline yellow (QY) in aqueous solutions by the heterogeneous Fenton and photo-Fenton processes in the presence of CuO/Fe2O3 photocatalyst. CuO/Fe2O3 derived from LDH structure was synthesized by the co-precipitation method. The physiochemical characteristics of CuO/Fe2O3 were described by XRD, TEM/SEM, BET surface area, and FTIR techniques. The effects of pH, H2O2 concentration, dye concentration, catalyst dose, reaction temperature, and reusability of catalyst on the QY decolorization efficiency were studied. The results indicated that a complete removal of QY was achieved within 150 min, when the H2O2 and QY concentrations were 27.6 mM and 100 mg/L, respectively. The rate constants for QY removal by the heterogeneous Fenton system were calculated, and the experimental data were found to fit the pseudo-first order model. Under optimal conditions, the rate constants were, respectively, 0.02032 and 0.01715 min-1 for the photo-Fenton and Fenton systems; this means that the addition of light has not a noticeable effect.
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Affiliation(s)
- Djedjiga Bousalah
- Centre de Recherche Scientifique et Technique en Analyse Physico-Chimique (CRAPC), BP 384 Tipasa, RP 42004, Bou-Ismail, Algeria
- Unité De Recherche: Matériaux, Procédés Et Environnement (URMPE), Faculté de Technologie, Université M'Hamed Bougara, Boumerdes, Algeria
| | - Hanane Zazoua
- Centre de Recherche Scientifique et Technique en Analyse Physico-Chimique (CRAPC), BP 384 Tipasa, RP 42004, Bou-Ismail, Algeria
| | - Amel Boudjemaa
- Centre de Recherche Scientifique et Technique en Analyse Physico-Chimique (CRAPC), BP 384 Tipasa, RP 42004, Bou-Ismail, Algeria.
| | - Abdelbaki Benmounah
- Unité De Recherche: Matériaux, Procédés Et Environnement (URMPE), Faculté de Technologie, Université M'Hamed Bougara, Boumerdes, Algeria
| | | | - Khaldoun Bachari
- Centre de Recherche Scientifique et Technique en Analyse Physico-Chimique (CRAPC), BP 384 Tipasa, RP 42004, Bou-Ismail, Algeria
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Tahir U, Yasmin A. Decolorization and discovery of metabolic pathway for the degradation of Mordant Black 11 dye by Klebsiella sp. MB398. Braz J Microbiol 2021; 52:761-771. [PMID: 33754316 DOI: 10.1007/s42770-021-00470-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 03/16/2021] [Indexed: 10/21/2022] Open
Abstract
Extensive utilization of the synthetic dyes in various industries is leading to water and soil contamination and ultimately impacting the humans. A research study was conducted for investigating the biodecolorization and biotransformation of Mordant Black 11 dye. For this purpose, potential of biofilm forming bacteria Klebsiella pneumoniae MB398 isolated from effluent outlets of Tops Food Industry, Hattar, Pakistan, was assessed to decolorize and transform Mordant Black 11 dye. Bacterial strain MB398 exhibited the capability of growing optimally at acidic pH (pH 6.0). Klebsiella pneumoniae MB398 efficiently decolorized Mordant Black 11 dye (64.55%) in aerobic environment at pH 6.0 and 37 °C over 24 h, which further increased to 75.35% over a period of 72 h of incubation. Strain MB398 also exhibited the capability of decolorizing Mordant Black 11 dye in the presence of cadmium (63.71%), chromium (61.78%), and copper (61.50%), respectively. UV-VIS spectrophotometric analysis, FTIR, and HPLC spectra were also indicative of biotransformation of dye molecules by Klebsiella pneumoniae MB398. GC-MS analysis of Mordant Black 11 dye revealed formation of 9 novel and unique metabolites including phenol,2,4-bis(1,1-dimethylethyl); 9-eicosene, (E); ethanol,2,2-(2-propenyloxy); acetic acid, benzene; 1-naphthol; methyl formate; valeraldehyde,2,4-dimethyl; and 7-hexadecene (Z). A possible metabolic pathway depicting the biotransformation of Mordant Black 11 dye by Klebsiella pneumoniae MB398 was projected. Findings of the current research study strongly suggest application of Klebsiella pneumoniae MB398 for developing large scale bioremediation strategies for the abatement of synthetic dyes to retain environmental sustainability in bioeconomic way.
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Affiliation(s)
- Uruj Tahir
- Department of Environmental Sciences, Microbiology and Biotechnology Laboratory, Fatima Jinnah Women University, Rawalpindi, 46000, Pakistan. .,Department of Biotechnology, Fatima Jinnah Women University, Rawalpindi, 46000, Pakistan. .,Department of Environmental Sciences, Faculty of Natural Sciences, University of Okara, Okara, 56130, Pakistan.
| | - Azra Yasmin
- Department of Environmental Sciences, Microbiology and Biotechnology Laboratory, Fatima Jinnah Women University, Rawalpindi, 46000, Pakistan.,Department of Biotechnology, Fatima Jinnah Women University, Rawalpindi, 46000, Pakistan
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6
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Synthesis method, antibacterial and photocatalytic activity of ZnO nanoparticles for azo dyes in wastewater treatment: A review. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108140] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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7
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Pt nanoparticles decorated heterostructured g-C 3N 4/Bi 2MoO 6 microplates with highly enhanced photocatalytic activities under visible light. Sci Rep 2019; 9:7636. [PMID: 31114005 PMCID: PMC6529451 DOI: 10.1038/s41598-019-42973-6] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 03/22/2019] [Indexed: 11/20/2022] Open
Abstract
Exploring an efficient and photostable heterostructured photocatalyst is a pivotal scientific topic for worldwide energy and environmental concerns. Herein, we reported that Pt decorated g-C3N4/Bi2MoO6 heterostructured composites with enhanced photocatalytic performance under visible light were simply synthesized by one-step hydrothermal method for methylene blue (MB) dye degradation. Results revealed that the synthetic Pt decorated g-C3N4/Bi2MoO6 composites with Bi2MoO6 contents of 20 wt.% (Pt@CN/20%BMO) presented the highest photocatalytic activity, exhibiting 7 and 18 times higher reactivity than the pure g-C3N4 and Bi2MoO6, respectively. Structural analyses showed that Bi2MoO6 microplates were anchored on the wrinkled flower-like g-C3N4 matrix with Pt decoration, leading to a large expansion of specific surface area from 10.79 m2/g for pure Bi2MoO6 to 46.09 m2/g for Pt@CN/20%BMO. In addition, the Pt@CN/20%BMO composites exhibited an improved absorption ability in the visible light region, presenting a promoted photocatalytic MB degradation. Quenching experiments were also conducted to provide solid evidences for the production of hydroxyl radicals (•OH), electrons (e−), holes (h+) and superoxide radicals (•O2−) during dye degradation. The findings in this critical work provide insights into the synthesis of heterostructured photocatalysts with the optimization of band gaps, light response and photocatalytic performance in wastewater remediation.
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Kee MW, Soo JW, Lam SM, Sin JC, Mohamed AR. Evaluation of photocatalytic fuel cell (PFC) for electricity production and simultaneous degradation of methyl green in synthetic and real greywater effluents. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 228:383-392. [PMID: 30243074 DOI: 10.1016/j.jenvman.2018.09.038] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 08/27/2018] [Accepted: 09/10/2018] [Indexed: 06/08/2023]
Abstract
Recycling of alternative water sources particularly greywater and recovery of energy from wastewater are gaining momentum due to clean water scarcity and energy crisis. In this study, the photocatalytic fuel cell (PFC) employing ZnO/Zn photoanode and CuO/Cu photocathode was successfully designed for effective greywater recycling as well as energy recovery. The photoelectrodes were analyzed using X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), energy dispersive X-ray (EDX) and fourier transform infrared (FTIR) spectroscopy. The PFC performance in terms of electricity generation and parallel methyl green (MG) degradation were evaluated under operating parameters such as electrolyte type, initial MG concentration and solution pH. The results showed that the addition of Na2SO4 electrolyte, MG concentration of 40 mg L-1 and solution pH of 5.2 improved the short circuit current density (Jsc) and power density (Pmax) in the as-constructed PFC. Such a system also afforded highest MG and chemical oxygen demand (COD) removal efficiencies after 4 h of irradiation. The photoanodes used in this study demonstrated great recyclability after four repetition tests. The COD removal was reduced to some extents when the PFC treatment was tested in the real greywater under optimal conditions. Various greywater quality parameters including ammoniacal nitrogen (NH3-N), turbidity, pH and biochemical oxygen demand (BOD5) were also monitored. The phytotoxicity experiments via Vigna radiate seeds indicated a reduction in the phytotoxicity.
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Affiliation(s)
- Ming-Wei Kee
- Department of Environmental Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan University, Bandar Barat, 31900, Kampar, Perak, Malaysia
| | - Jian-Wen Soo
- Department of Environmental Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan University, Bandar Barat, 31900, Kampar, Perak, Malaysia
| | - Sze-Mun Lam
- Department of Environmental Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan University, Bandar Barat, 31900, Kampar, Perak, Malaysia.
| | - Jin-Chung Sin
- Department of Petrochemical Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan University, Bandar Barat, 31900, Kampar, Perak, Malaysia
| | - Abdul Rahman Mohamed
- School of Chemical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300, Nibong Tebal, Pulau Pinang, Malaysia
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9
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Mai LT, Hoai LT, Tuan VA. Effects of reaction parameters on photodegradation of caffeine over hierarchical flower-like ZnO nanostructure. VIETNAM JOURNAL OF CHEMISTRY 2018. [DOI: 10.1002/vjch.201800064] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Le Thi Mai
- School of Chemical Engineering; Hanoi University of Science and Technology
| | - Luu Thi Hoai
- School of Chemical Engineering; Hanoi University of Science and Technology
| | - Vu Anh Tuan
- School of Chemical Engineering; Hanoi University of Science and Technology
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10
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Fe‐based Metallic Glasses in Functional Catalytic Applications. Chem Asian J 2018; 13:3575-3592. [DOI: 10.1002/asia.201801082] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Indexed: 11/07/2022]
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11
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Dinesh GK, Saranya R. Facile approach for synthesis of stable, efficient, and recyclable ZnO through pulsed sonication and its application for degradation of recalcitrant azo dyes in wastewater. CAN J CHEM 2018. [DOI: 10.1139/cjc-2017-0696] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In the present study, the ultrasound in pulsed mode was used as a part of an advanced oxidation method. The influence of the pulsed ultrasound mode for the preparation of the zinc oxide (ZnO) wurtzite nanoparticle was investigated. The catalysts synthesized were analysed using SEM, TEM, EDAX, BET surface area, XRD, and DRS to study their morphological and structural characterizations. The ZnO nanoparticles exhibited a highly hexagonal structure from pulsed sonication synthesis route. The efficiency of the decolourization of the reactive red 4 (RR4) dye was studied under different operation parameters such as dye concentration, initial solution pH, oxidant (e.g., H2O2) concentration, and catalyst loading. The hybrid combined process of pulsed sonolysis, pH (4.0), H2O2 (17.64 mmol), and catalyst (0.35 g/L) achieved 97% degradation and 87.5% chemical oxygen demand removal in about 20 min of reaction time. The cyclic degradation studies of RR4 removal with 0.35 g/L of ZnO showed the reusability of catalyst up to the fifth removal cycle with negligible loss in the catalytic performance. GC–MS study, used for the detection of the RR4 intermediates, revealed the oxidation–reduction reaction by the reactive radicals proceeded via the reductive cleavage of the azo bonds. The studied process, based on the pulsed ultrasound, is found to be effective for the degradation of RR4 dye.
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Affiliation(s)
- G. Kumaravel Dinesh
- Department of Chemical Engineering, Indian Institute of Science Education and Research Bhopal, Bhopal (M.P.), India
| | - Rameshkumar Saranya
- Polymeric Materials & NanoComposites (PMNC), Department of Physics, Trinity College Dublin, University of Dublin, Dublin, Ireland
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Mohagheghian A, Ayagh K, Godini K, Shirzad-Siboni M. Enhanced photocatalytic activity of Fe3O4-WO3-APTES for azo dye removal from aqueous solutions in the presence of visible irradiation. PARTICULATE SCIENCE AND TECHNOLOGY 2018. [DOI: 10.1080/02726351.2017.1376363] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Azita Mohagheghian
- Research Center of Health and Environment, Guilan University of Medical Sciences, Rasht, Iran
- Department of Environmental Health Engineering, School of Health, Guilan University of Medical Sciences, Rasht, Iran
| | - Kobra Ayagh
- Department of Environmental Health Engineering, School of Health, Guilan University of Medical Sciences, Rasht, Iran
| | - Kazem Godini
- Department of Environmental Health Engineering, School of Health, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mehdi Shirzad-Siboni
- Research Center of Health and Environment, Guilan University of Medical Sciences, Rasht, Iran
- Department of Environmental Health Engineering, School of Health, Guilan University of Medical Sciences, Rasht, Iran
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
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13
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Excellent Performance of Fe78Si9B13 Metallic Glass for Activating Peroxymonosulfate in Degradation of Naphthol Green B. METALS 2017. [DOI: 10.3390/met7070273] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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14
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Sha L, Xie L, Li M, Fei X, Du J, Zou C. Study on the Basic Performance of Three-phase Fluidized Bed Equipment for Solar Photocatalysis-Membrane Separation. Photochem Photobiol 2017; 93:1407-1413. [PMID: 28477352 DOI: 10.1111/php.12791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Accepted: 04/13/2017] [Indexed: 11/28/2022]
Abstract
In this study, three-phase fluidized bed equipment for the solar photocatalysis-membrane separation (E-SPME), comprising solar photocatalytic degradation and membrane separation zones, was first introduced, and the photocatalytic degradation of acid red B wastewater (ARBW) with a TiO2 photocatalyst was investigated using the E-SPME. The experimental results indicated the circulating flow of wastewater between the two zones and the increase in the ARBW photocatalytic degradation efficiency with decreasing membrane flux. The same experimental phenomenon was observed with the change in the aeration rate in the lower water tank from 0.10 to 0.40 m3 h-1 , but the degradation efficiency started to decrease with further increase in the aeration rate to 0.50 m3 h-1 . The degradation efficiency on a clear day was greater than that on a cloudy day; however, it was significantly improved with the opened UV lamps on a cloudy day. The steady operation of the E-SPME was still possible by the opening of the UV lamps on completely cloudy and clear days with a solar light intensity of <13.0 W m-2 .
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Affiliation(s)
- Li Sha
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin, China
| | - Liping Xie
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin, China
| | - Miaomiao Li
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin, China
| | - Xuening Fei
- Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Tianjin, China
| | - Jinshan Du
- Tianjin Tsinghua Daring Environmental Engineering Co., Ltd, Tianjin, China
| | - Chenxi Zou
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin, China
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15
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Energy-absorption-based explanation of the TiO 2 /C photocatalytic activity enhancement mechanism. J Catal 2017. [DOI: 10.1016/j.jcat.2016.12.022] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Jia Z, Liang S, Zhang W, Wang W, Yang C, Zhang L. Heterogeneous photo Fenton-like degradation of cibacron brilliant red 3B-A dye using amorphous Fe 78 Si 9 B 13 and Fe 73.5 Si 13.5 B 9 Cu 1 Nb 3 alloys: The influence of adsorption. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2016.11.021] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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17
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Jia Z, Duan X, Zhang W, Wang W, Sun H, Wang S, Zhang LC. Ultra-sustainable Fe 78Si 9B 13 metallic glass as a catalyst for activation of persulfate on methylene blue degradation under UV-Vis light. Sci Rep 2016; 6:38520. [PMID: 27922099 PMCID: PMC5138629 DOI: 10.1038/srep38520] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 11/10/2016] [Indexed: 12/15/2022] Open
Abstract
Stability and reusability are important characteristics of advanced catalysts for wastewater treatment. In this work, for the first time, sulfate radicals (SO4∙-) with a high oxidative potential (Eo = 2.5-3.1 V) were successfully activated from persulfate by a Fe78Si9B13 metallic glass. This alloy exhibited a superior surface stability and reusability while activating persulfate as indicated by it being used for 30 times while maintaining an acceptable methylene blue (MB) degradation rate. The produced SiO2 layer on the ribbon surface expanded strongly from the fresh use to the 20th use, providing stable protection of the buried Fe. MB degradation and kinetic study revealed 100% of the dye degradation with a kinetic rate k = 0.640 within 20 min under rational parameter control. The dominant reactive species for dye molecule decomposition in the first 10 min of the reaction was hydroxyl radicals (∙OH, Eo = 2.7 V) and in the last 10 min was sulfate radicals (SO4∙-), respectively. Empirical operating variables for dye degradation in this work were under catalyst dosage 0.5 g/L, light irradiation 7.7 μW/cm2, and persulfate concentration 1.0 mmol/L. The amorphous Fe78Si9B13 alloy in this work will open a new gate for wastewater remediation.
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Affiliation(s)
- Zhe Jia
- School of Engineering, Edith Cowan University, 270 Joondalup Drive, Joondalup, Perth, WA 6027, Australia
| | - Xiaoguang Duan
- Department of Chemical Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
| | - Wenchang Zhang
- Environmental Protection Administration of Ji’an City, Ji’an, Jiangxi Province, 343000, China
| | - Weimin Wang
- School of Materials Science and Engineering, Shandong University, Jinan, Shandong 250061, China
| | - Hongqi Sun
- School of Engineering, Edith Cowan University, 270 Joondalup Drive, Joondalup, Perth, WA 6027, Australia
| | - Shaobin Wang
- Department of Chemical Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
| | - Lai-Chang Zhang
- School of Engineering, Edith Cowan University, 270 Joondalup Drive, Joondalup, Perth, WA 6027, Australia
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Activated electric arc furnace slag as an efficient and reusable heterogeneous Fenton-like catalyst for the degradation of Reactive Black 5. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2016.07.023] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Novel visible-light-driven cobalt loaded neutralized red mud (Co/NRM) composite with photocatalytic activity toward methylene blue dye degradation. J IND ENG CHEM 2016. [DOI: 10.1016/j.jiec.2016.06.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Ghasemi Z, Younesi H, Zinatizadeh AA. Kinetics and thermodynamics of photocatalytic degradation of organic pollutants in petroleum refinery wastewater over nano-TiO2 supported on Fe-ZSM-5. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2016.05.039] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Jia Z, Miao J, Lu H, Habibi D, Zhang W, Zhang L. Photocatalytic degradation and absorption kinetics of cibacron brilliant yellow 3G-P by nanosized ZnO catalyst under simulated solar light. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2015.10.012] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Gholami M, Shirzad-Siboni M, Yang JK. Application of Ni-doped ZnO rods for the degradation of an azo dye from aqueous solutions. KOREAN J CHEM ENG 2016. [DOI: 10.1007/s11814-015-0218-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Alrobayi EM, Algubili AM, Aljeboree AM, Alkaim AF, Hussein FH. Investigation of photocatalytic removal and photonic efficiency of maxilon blue dye GRL in the presence of TiO2 nanoparticles. PARTICULATE SCIENCE AND TECHNOLOGY 2015. [DOI: 10.1080/02726351.2015.1120836] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Synthesis of nano zinc oxide on granular porous scoria: Application for photocatalytic removal of pharmaceutical and textile pollutants from synthetic and real wastewaters. J Taiwan Inst Chem Eng 2015. [DOI: 10.1016/j.jtice.2014.11.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Mahdizadeh F, Aber S. Treatment of textile wastewater under visible LED lamps using CuO/ZnO nanoparticles immobilized on scoria rocks. RSC Adv 2015. [DOI: 10.1039/c5ra09446a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ZnO and CuO thin films were synthesized by a sol–gel and direct crystallization method on granular porous natural scoria respectively and CuO/ZnO/scoria was used for water treatment under visible light irradiation.
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Affiliation(s)
- F. Mahdizadeh
- Research Laboratory of Environment Protection Technology
- Department of Applied Chemistry
- Faculty of Chemistry
- University of Tabriz
- Tabriz
| | - S. Aber
- Research Laboratory of Environment Protection Technology
- Department of Applied Chemistry
- Faculty of Chemistry
- University of Tabriz
- Tabriz
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Sapawe N. Effective solar-based iron oxide supported HY zeolite catalyst for the decolorization of organic and simulated dyes. NEW J CHEM 2015. [DOI: 10.1039/c5nj00890e] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An excellent EGFe2O3/HY catalyst with a size of <30 nm and superior photoactivity was generated via one-pot electrosynthesis.
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Affiliation(s)
- Norzahir Sapawe
- Section of Technical Foundation
- Universiti Kuala Lumpur – Malaysian Institute of Chemical and Bioengineering Technology
- 78000 Alor Gajah
- Malaysia
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Recent advances in heterogeneous photocatalytic decolorization of synthetic dyes. ScientificWorldJournal 2014; 2014:692307. [PMID: 25054183 PMCID: PMC4099358 DOI: 10.1155/2014/692307] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 04/10/2014] [Accepted: 04/14/2014] [Indexed: 11/18/2022] Open
Abstract
During the process and operation of the dyes, the wastes produced were commonly found to contain organic and inorganic impurities leading to risks in the ecosystem and biodiversity with the resultant impact on the environment. Improper effluent disposal in aqueous ecosystems leads to reduction of sunlight penetration which in turn diminishes photosynthetic activity, resulting in acute toxic effects on the aquatic flora/fauna and dissolved oxygen concentration. Recently, photodegradation of various synthetic dyes has been studied in terms of their absorbance and the reduction of oxygen content by changes in the concentration of the dye. The advantages that make photocatalytic techniques superior to traditional methods are the ability to remove contaminates in the range of ppb, no generation of polycyclic compounds, higher speed, and lower cost. Semiconductor metal oxides, typically TiO2, ZnO, SnO, NiO, Cu2O, Fe3O4, and also CdS have been utilized as photocatalyst for their nontoxic nature, high photosensitivity, wide band gap and high stability. Various process parameters like photocatalyst dose, pH and initial dye concentrations have been varied and highlighted. Research focused on surface modification of semiconductors and mixed oxide semiconductors by doping them with noble metals (Pt, Pd, Au, and Ag) and organic matter (C, N, Cl, and F) showed enhanced dye degradation compared to corresponding native semiconductors. This paper reviews recent advances in heterogeneous photocatalytic decolorization for the removal of synthetic dyes from water and wastewater. Thus, the main core highlighted in this paper is the critical selection of semiconductors for photocatalysis based on the chemical, physical, and selective nature of the poisoning dyes.
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