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Halfadji A, Chougui A, Djeradi R, Ouabad FZ, Aoudia H, Rajendrachari S. TiO 2-Decorated by Nano-γ-Fe 2O 3 as a Catalyst for Efficient Photocatalytic Degradation of Orange G Dye under Eco-friendly White LED Irradiation. ACS OMEGA 2023; 8:39907-39916. [PMID: 37901492 PMCID: PMC10601431 DOI: 10.1021/acsomega.3c06420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 09/28/2023] [Indexed: 10/31/2023]
Abstract
Azo dyes make up a major class of dyes that have been widely studied for their diverse applications. In this study, we successfully applied nano-γ-Fe2O3/TiO2 as a nanocatalyst to improve the photodegradation efficiency of azo dyes (Orange G (OG) dye as a model) from aqueous solution under white light-emitting diode (LED) irradiation. We also investigated the degradation mechanisms and pathways of OG dye as well as the effects of the initial pH value, amount of H2O2, catalyst dosage, and dye concentration on the degradation processes. The characterizations of nano-γ-Fe2O3 and γ-Fe2O3 Nps/TiO2 were carried out using various techniques, including X-ray diffractometry, scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, and UV-visible spectroscopy. The efficiency of the photodegradation reaction of OG was found to follow pseudo-first-order kinetics (Langmuir-Hinshelwood model) with a rate constant of 0.0338 min-1 and an R2 of 0.9906. Scavenger experiments revealed that hydroxyl radicals and superoxide anion radicals were the dominant species in the OG photocatalytic oxidation mechanism. This work provides a new method for designing highly efficient heterostructure-based photocatalysts (γ-Fe2O3 Nps/TiO2) based on LED light irradiation for environmental applications.
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Affiliation(s)
- Ahmed Halfadji
- Synthesis
and Catalysis Laboratory, Ibn Khaldoun University
of Tiaret, Tiaret 14000, Algeria
- Department
of Sciences and Technology, Faculty of Applied Sciences, Ibn Khaldoun University of Tiaret, Tiaret 14000, Algeria
| | - Abdelkader Chougui
- Department
of Sciences and Technology, Faculty of Applied Sciences, Ibn Khaldoun University of Tiaret, Tiaret 14000, Algeria
| | - Rania Djeradi
- Department
of Chemistry, Ibn Khaldoun University of
Tiaret, Tiaret 14000, Algeria
| | - Fatima Zohra Ouabad
- Department
of Chemistry, Ibn Khaldoun University of
Tiaret, Tiaret 14000, Algeria
| | - Hanane Aoudia
- Department
of Sciences and Technology, Faculty of Applied Sciences, Ibn Khaldoun University of Tiaret, Tiaret 14000, Algeria
| | - Shashanka Rajendrachari
- Department
of Metallurgical and Materials Engineering, Bartin University, Bartin 74100, Turkey
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2
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Lira Pérez J, Rodríguez Vázquez R. Removal of orange G dye by Aspergillus niger and its effect on organic acid production. Prep Biochem Biotechnol 2022:1-12. [PMID: 36527445 DOI: 10.1080/10826068.2022.2153368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Azo dyes have been found in wastewater from textile industries. These compounds continuously persist in the environment for long periods of time and may be toxic for living beings. An alternative treatment for dye removal that has proven to be effective is aerobic treatment with fungi. In this study, Aspergillus niger was investigated as a mechanism to remove orange G (OG). Removal of 200 mg/L of OG by A. niger biomass was carried out in solid and liquid medium, which showed a positive correlation between A. niger growth and dye removal. In liquid media what was proved is that the efficiency of OG removal by A. niger depends on its concentration; at 200 mg/L of OG remove by degradation and at 400 mg/L by processes as sorption and degradation. During OG removal, the generation of organic acids by A. niger was modified compared to constitutive generation, one of the modifications was the increase of gluconic acid production and the decrease of acids involved in the Krebs cycle, as well as the null detection of oxalic acid. The monitoring of organic acids by high-performance liquid chromatography (HPLC) was important because some of them have been linked to dye removal.
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3
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Abstract
Nitrate is a widespread water contaminant that can pose environmental and health risks. Various conventional techniques can be applied for the removal of nitrate from water and wastewater, such as biological denitrification, ion exchange, nanofiltration, and reverse osmosis. Compared to traditional methods, the chemical denitrification through zero-valent metals offers various advantages, such as lower costs, simplicity of management, and high efficiencies. The most utilized material for chemical denitrification is zero-valent iron (ZVI). Aluminium (ZVA), magnesium (ZVM), copper (ZVC), and zinc (ZVZ) are alternative zero-valent metals that are studied for the removal of nitrate from water as well as from aqueous solutions. To the best of our knowledge, a comprehensive work on the use of the various zero-valent materials that are employed for the removal of nitrate is still missing. Therefore, in the present review, the most recent papers concerning the use of zero-valent materials for chemical denitrification were analysed. The studies that dealt with zero-valent iron were discussed by considering microscopic (mZVI) and nanoscopic (nZVI) forms. For each Fe0 form, the effects of the initial pH, the presence or absence of dissolved oxygen, the initial nitrate concentration, the temperature, and the dissolved ions on the nitrate removal process were separately evaluated. Finally, the different materials that were employed as support for the nanoparticles were examined. For the other zero-valent metals tested, a detailed description of the works present in the literature was carried out. A comparison of the various features that are related to each considered material was also made.
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4
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Omri A, Benzina M. Sono-activation of persulfate by Fe-expanded perlite catalyst for oxidative degradation of Orange G: synergy study, influence of parameters and phytotoxicity tests. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04673-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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5
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Ileri B, Dogu I. Sono-degradation of Reactive Blue 19 in aqueous solution and synthetic textile industry wastewater by nanoscale zero-valent aluminum. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 303:114200. [PMID: 34896859 DOI: 10.1016/j.jenvman.2021.114200] [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: 07/09/2021] [Revised: 11/24/2021] [Accepted: 11/26/2021] [Indexed: 06/14/2023]
Abstract
Reactive dyes, which are commonly used in the textile industry, are toxic and carcinogenic for the ecosystem and human health. The objective of this study was to investigate the removal of Reactive Blue 19 (RB19) from aqueous solution and synthetic textile industry wastewater using nanoscale zero-valent aluminum (nZVAl), ultrasonic bath (US-40 kHz), and combined US/nZVAl through the consideration of varying experimental parameters such as pH, nZVAl dosage, contact time, and initial RB19 dye concentration. The acidic pH value was an effective parameter to degrade RB19. As the nZVAl dosage and contact time increased, the degradation of RB19 dye from aqueous solution and synthetic textile industry wastewater increased using combined US/nZVAl process. A similar result was obtained for RB19 removal with combined US/nZVAl using 0.10 g dosage at 30 min, whereas it was obtained with nZVAl alone using 0.20 g dosage at 60 min. The sono-degradation process activated the nZVAl surface depending on US cavitation effect and shock waves, and increased RB19 dye uptake capacity with a shorter contact time and lower nZVAl dosage. Increasing the initial dye concentration decreased the removal efficiency for RB19. According to the obtained reusability results, nZVAl particles could be reused for four and two consecutive cycles of combined US/nZVAl and nZVAl alone, respectively.
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Affiliation(s)
- Burcu Ileri
- Lapseki Vocational School, Canakkale Onsekiz Mart University, 17800, Canakkale, Turkey.
| | - Irem Dogu
- Department of Environmental Engineering, Faculty of Engineering, Canakkale Onsekiz Mart University, 17100, Canakkale, Turkey.
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6
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Gujar SK, Gogate PR. Application of hybrid oxidative processes based on cavitation for the treatment of commercial dye industry effluents. ULTRASONICS SONOCHEMISTRY 2021; 75:105586. [PMID: 34004457 PMCID: PMC8141528 DOI: 10.1016/j.ultsonch.2021.105586] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 04/29/2021] [Accepted: 05/05/2021] [Indexed: 05/05/2023]
Abstract
The present work demonstrates the significant role of ultrasound (US) in intensifying the efficacy of the combination with Fenton reagent and/or ozone for the treatment of real dye industry industrial effluent procured from the local industry. Initial part of the work focused on analysing the literature based on combination approaches of US with different oxidants applied for the treatment of real and simulated effluents focusing on the dyes. The work also provides guidelines for the selection of optimal operating parameters for maximizing the intensification of the degradation. The second part of the work presents an experimental study into combined approaches of ultrasound with ozone (O3) and Fenton's reagent for treatment of real effluent. Under optimized conditions (100 W, 20 kHz and duty cycle of 70%), maximum COD reductions of 94.79% and 51% were observed using a combined approach of US + Fenton oxidation followed by lime treatment for the treatment of effluent-I and effluent-II respectively at H2O2 loading of 17.5 g/L, H2O2/Fe2+ ratio of 3, pH of 4, CaO dose of 1 g/L and an overall treatment time of 70 min. US + Fenton + O3 followed by lime was also applied for treatment under ozone loading of 1 g/h for the treatment of effluent-I and it was found that maximum COD reduction of 95.12% was obtained within 30 min of treatment time, indicating use of ozone did not result in significant value addition in terms of COD reduction but resulted in faster treatment. HC (inlet pressure: 4 bar) + Fenton + Lime scheme was successfully replicated on a pilot-scale resulting in maximum COD reduction of 57.65% within 70 min of treatment time. Overall, it has been concluded that the hybrid oxidative processes as US + Fenton followed by lime treatment is established as the best approach ensuring effective COD reduction at the same time obtaining final colourless/reusable effluent.
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Affiliation(s)
- Swapnil K Gujar
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga, Mumbai 400019, India
| | - Parag R Gogate
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga, Mumbai 400019, India.
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7
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Shen S, Wang D, Jia M, Xiao S, Tang Z, Yang J. Ultrafast and high efficiency photodegradation of dyes under visible light by Au nanocluster-promoted Zn 0.5Cd 0.5S nanorods. CrystEngComm 2021. [DOI: 10.1039/d1ce00152c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Au nanoclusters decorated on the lateral surface of ultrathin ZCS nanorods could maximize the photocatalytic activity of ZCS by PRET mechanism. This makes it possible to use less photocatalysts to degrade more recalcitrant dyes in a short time.
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Affiliation(s)
- Shuling Shen
- School of Materials Science and Engineering
- University of Shanghai for Science and Technology
- Shanghai
- China
| | - Di Wang
- School of Materials Science and Engineering
- University of Shanghai for Science and Technology
- Shanghai
- China
| | - Mengmeng Jia
- School of Materials Science and Engineering
- University of Shanghai for Science and Technology
- Shanghai
- China
| | - Shuning Xiao
- School of Materials Science and Engineering
- University of Shanghai for Science and Technology
- Shanghai
- China
| | - Zhihong Tang
- School of Materials Science and Engineering
- University of Shanghai for Science and Technology
- Shanghai
- China
| | - Junhe Yang
- School of Materials Science and Engineering
- University of Shanghai for Science and Technology
- Shanghai
- China
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8
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Dai B, Chen Y, Hao SM, Huang H, Kou J, Lu C, Lin Z, Xu Z. Sustainable Internal Electric Field for Enhanced Photocatalysis: From Material Design to Energy Utilization. J Phys Chem Lett 2020; 11:7407-7416. [PMID: 32794709 DOI: 10.1021/acs.jpclett.0c00889] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The intrinsic internal electric field in a ferroelectric photocatalyst is beneficial for improving the photocatalytic properties because of its positive effect on the separation and migration of photogenerated carriers. However, this kind of internal electric field is static and easily saturated by inner and outer shielding effects, seriously restricting its potential in photocatalysis. To overcome this problem, a sustainable internal electric field was introduced into photocatalysis based on piezoelectric and pyroelectric effect, which exhibits good capability in consistently boosting photocatalytic activity, thus becoming a hot research topic. In this Perspective we summarize the recent significant progress in the construction of sustainable internal electric fields for facilitating photocatalysis from material design to energy utilization. Moreover, the fascinating influence of sustainable internal electric fields on carrier behavior is also discussed. Finally, a summary and outlook for building a sustainable internal electric field to further enhance photocatalytic performance are provided.
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Affiliation(s)
- Baoying Dai
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, P.R. China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 210009, P.R. China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 210009, P.R. China
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Yukai Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, P.R. China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 210009, P.R. China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 210009, P.R. China
| | - Shu-Meng Hao
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Hengming Huang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, P.R. China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 210009, P.R. China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 210009, P.R. China
| | - Jiahui Kou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, P.R. China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 210009, P.R. China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 210009, P.R. China
| | - Chunhua Lu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, P.R. China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 210009, P.R. China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 210009, P.R. China
| | - Zhiqun Lin
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Zhongzi Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, P.R. China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 210009, P.R. China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 210009, P.R. China
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9
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Wu S, Yang S, Liu S, Zhang Y, Ren T, Zhang Y. Enhanced reactivity of zero-valent aluminum with ball milling for phenol oxidative degradation. J Colloid Interface Sci 2020; 560:260-272. [DOI: 10.1016/j.jcis.2019.10.075] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 10/14/2019] [Accepted: 10/19/2019] [Indexed: 11/28/2022]
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10
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Hunge YM, Yadav AA, Mathe VL. Ultrasound assisted synthesis of WO 3-ZnO nanocomposites for brilliant blue dye degradation. ULTRASONICS SONOCHEMISTRY 2018; 45:116-122. [PMID: 29705304 DOI: 10.1016/j.ultsonch.2018.02.052] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 02/16/2018] [Accepted: 02/16/2018] [Indexed: 06/08/2023]
Abstract
The present work deals with the preparation of WO3 and WO3-ZnO nanocomposites in presence of ultrasonic irradiation, and its use in the sonocatalytic degradation of brilliant blue dye. WO3-ZnO nanocomposite is prepared using one step in-situ ultrasound assisted method. The successfully prepared WO3 and WO3-ZnO nanocomposites were characterized using different characterization techniques such as XRD, Raman, BET, FE-SEM and EDS. The XRD pattern reveals that the formation of monoclinic and hexagonal crystal structures of WO3 and ZnO respectively. BET study shows that WO3-ZnO nanocomposite have maximum surface area than that of the WO3. EDS study confirms the formation of WO3-ZnO nanocomposites. Further the use of the prepared WO3 and WO3-ZnO nanocomposites as a sonocatalyst for the degradation of brilliant blue dye. The rate constant (k) was evaluated as a function of the initial concentration of brilliant blue dye. It is found that WO3-ZnO nanocomposites exhibits maximum sonocatalytic activity as compared to WO3 photocatalyst.
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Affiliation(s)
- Y M Hunge
- Department of Physics, Savitribai Phule Pune University, Pune 411007, India.
| | - A A Yadav
- Department of Physics, The Institute of Science, Mumbai, India
| | - V L Mathe
- Department of Physics, Savitribai Phule Pune University, Pune 411007, India.
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11
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Nidheesh PV, Khatri J, Anantha Singh TS, Gandhimathi R, Ramesh ST. Review of zero-valent aluminium based water and wastewater treatment methods. CHEMOSPHERE 2018; 200:621-631. [PMID: 29510370 DOI: 10.1016/j.chemosphere.2018.02.155] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 02/19/2018] [Accepted: 02/25/2018] [Indexed: 06/08/2023]
Abstract
Zero-valent metals (ZVM) are widely used to remove heavy metals, contaminants, toxicity, etc. from water and wastewater. Zero-valent aluminium (ZVAl) has large surface area and high surface reactivity. It has enormous flexibility for the in-situ application. ZVAl can be applied as either a single or a bimetallic system as well as advanced oxidation processes (AOPs). It is observed that ZVAl is capable of generating hydroxyl and sulfate radicals in water medium, which remove non-biodegradable pollutants from aqueous solution. ZVAl-based processes can remove non-biodegradable organic contaminants from water medium within a short duration. ZVAl is also used as a reducing agent. It is efficient to reduce toxic hexavalent chromium to less toxic trivalent chromium. ZVAl, in various combinations in bimetallic system (Fe/Al, Pd/Al, Cu/Al), is able to remove various contaminants from aqueous medium. Overall, it can be concluded that ZVAl-based methods for water and wastewater treatment are promising environmental technologies.
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Affiliation(s)
- P V Nidheesh
- CSIR-National Environmental Engineering Research Institute, Nagpur, Maharashtra, India.
| | - Jayraj Khatri
- CSIR-National Environmental Engineering Research Institute, Nagpur, Maharashtra, India; Department of Civil Engineering, School of Technology, Pandit Deendayal Petroleum University, Gandhinagar, Gujarat, India
| | - T S Anantha Singh
- Department of Civil Engineering, School of Technology, Pandit Deendayal Petroleum University, Gandhinagar, Gujarat, India
| | - R Gandhimathi
- Department of Civil Engineering, National Institute of Technology, Tiruchirappalli, Thuvakudi, Tamil Nadu, India
| | - S T Ramesh
- Department of Civil Engineering, National Institute of Technology, Tiruchirappalli, Thuvakudi, Tamil Nadu, India
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12
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Hu SB, Li L, Luo MY, Yun YF, Chang CT. Aqueous norfloxacin sonocatalytic degradation with multilayer flower-like ZnO in the presence of peroxydisulfate. ULTRASONICS SONOCHEMISTRY 2017. [PMID: 28633846 DOI: 10.1016/j.ultsonch.2017.03.044] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Multilayer ZnO nanoflowers were synthesized through a simple precipitation method and characterized by field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), X-ray photoelectron spectra (XPS) and nitrogen absorption-desorption techniques. The FE-SEM images show the integrated morphology of an individual flower-like ZnO nanostructure, which is made of nano-platelets with uniform thickness (20-30nm). The average pore size and Brunauer-Emmet-Teller (BET) surface area of the as-synthesized ZnO were 27.25nm and 13.53m2/g. The sonocatalytic ability of the prepared samples was evaluated through norfloxacin (NF) degradation in an aqueous system using ultrasound (US) irradiation. To improve degradation efficiency, peroxydisulfate (Na2S2O8) was introduced to develop a US/ZnO/peroxydisulfate system, which exhibited an excellent synergistic effect. The effects of ZnO dosage, Na2S2O8 concentration, pH, and initial NF concentration were studied to determine the performances of the US/ZnO/peroxydisulfate process. Corresponding results showed that NF degradation rate increased with the increase of ZnO dosage but decreased with the increase of initial NF concentration. Under the optimal Na2S2O8 concentration of 0.1gL-1 at pH 9, the best degradation efficiency can be achieved. Moreover, based on the scavenging experiment results and literatures, NF degradation through US/ZnO/peroxydisulfate system is majorly induced by OH and SO4- radicals.
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Affiliation(s)
- Shou-Bo Hu
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
| | - Liang Li
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
| | - Meng-Yu Luo
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
| | - Ya-Feng Yun
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
| | - Chang-Tang Chang
- Department of Environmental Engineering, I-lan University, I-lan, Taiwan.
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13
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He LL, Liu XP, Wang YX, Wang ZX, Yang YJ, Gao YP, Liu B, Wang X. Sonochemical degradation of methyl orange in the presence of Bi2WO6: Effect of operating parameters and the generated reactive oxygen species. ULTRASONICS SONOCHEMISTRY 2016; 33:90-98. [PMID: 27245960 DOI: 10.1016/j.ultsonch.2016.04.028] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 04/12/2016] [Accepted: 04/24/2016] [Indexed: 06/05/2023]
Abstract
The Bi2WO6 was prepared by the hydrothermal method and its sonocatalytic activity was studied in the degradation of methyl orange (MO) solutions. The effects of catalytic activity of Bi2WO6 on dye were inspected by the change in absorbance of dye with UV-vis spectrometer. The influences of operational parameters such as the addition amount of Bi2WO6, pH, the initial concentration of dyes, ultrasonic power and irradiation time on the degradation ratio were investigated. In addition, the obtained results indicated that the kinetics of sonochemical reactions of MO were consistent with the pseudo first-order kinetics and Bi2WO6 had excellent reusability and stability during the sonochemical degradation processes. The generation and kinds of reactive oxygen species (ROS) and their influence on the sonochemical degradation of MO were determined by the methods of oxidation-extraction spectrophotometry and ROS scavengers. The results indicate that the degradation of MO in the presence of Bi2WO6 under ultrasonic irradiation is related to the generation of ROS, in which both singlet molecular oxygen ((1)O2) and hydroxyl radical (OH) play important roles in the sonochemical degradation of MO. These experimental results provide a sound foundation for the further development of Bi2WO6 as a sonocatalyst in wastewater treatment.
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Affiliation(s)
- Ling-Ling He
- College of Applied Chemistry, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Xian-Ping Liu
- College of Applied Chemistry, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Yong-Xia Wang
- College of Applied Chemistry, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Zhi-Xin Wang
- College of Applied Chemistry, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Yan-Jie Yang
- College of Applied Chemistry, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Yan-Ping Gao
- College of Applied Chemistry, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Bin Liu
- College of Pharmacy, Liaoning University, Shenyang 110036, China.
| | - Xin Wang
- College of Pharmacy, Liaoning University, Shenyang 110036, China.
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14
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Dinesh GK, Anandan S, Sivasankar T. Synthesis of Fe-doped Bi 2O 3 nanocatalyst and its sonophotocatalytic activity on synthetic dye and real textile wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:20100-20110. [PMID: 26786580 DOI: 10.1007/s11356-015-5951-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 12/09/2015] [Indexed: 06/05/2023]
Abstract
The catalysts such as Fe, Bi2O3, and Fe-doped Bi2O3 were synthesized for the sonophotocatalytic treatment of synthetic dye and real textile wastewater. The resultant catalysts were characterized for its size and uniform shape using x-ray diffractogram (XRD) and scanning electron microscopy (SEM) which signified the nanorod shape formed Bi2O3. The higher ultraviolet light absorbance capacity of the catalysts was also evident using diffuse reflectance spectroscopy (DRS). Initially, the effect of conventional parameters such as initial pH, gas bubbling (argon, oxygen, air and nitrogen) and oxidant addition (H2O2 and peroxymonosulfate) in the presence of sonolysis (22 and 37 kHz frequency) and photolysis (UV-C light) on 10 ppm Basic Brown 1 dye was studied. The results showed that highest decolorization of 62 % was attained for 3 g/L peroxymonosulfate under 37 kHz frequency sonolysis treatment. Secondly, with the catalyst study, highest of 46 % dye color removal was obtained with 4 g/L Fe under 37 kHz frequency sonolysis treatment. The sonophotocatalytic treatment of dye with Fe-doped Bi2O3 catalyst in combination with peroxymonosulfate showed highest color removal of 99 %. Finally, the sonophotocatalytic treatment of real textile wastewater in the presence of 3 g/L Fe-doped Bi2O3 and 6 g/L peroxymonosulfate reduced the total organic carbon (TOC) and chemical oxygen demand (COD) level to 77 and 91 %, respectively, in 180 min. The reported treatment process was found to treat the synthetic dye and real textile wastewater effectively.
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Affiliation(s)
- G Kumaravel Dinesh
- Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli, 620 015, Tamil Nadu, India
| | - Sambandam Anandan
- Department of Chemistry, National Institute of Technology, Tiruchirappalli, 620 015, Tamil Nadu, India
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15
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Minimizing the interference of carbonate ions on degradation of SRF3B dye by Fe0-aggregate-activated persulfate process. Sep Purif Technol 2016. [DOI: 10.1016/j.seppur.2016.05.039] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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16
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Wu Q, Li Y, Wang W, Wang T, Hu H. Removal of C.I. Reactive Red 2 by low pressure UV/chlorine advanced oxidation. J Environ Sci (China) 2016; 41:227-234. [PMID: 26969069 DOI: 10.1016/j.jes.2015.06.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 06/19/2015] [Accepted: 06/23/2015] [Indexed: 06/05/2023]
Abstract
Azo dyes are commonly found as pollutants in wastewater from the textile industry, and can cause environmental problems because of their color and toxicity. The removal of a typical azo dye named C.I. Reactive Red 2 (RR2) during low pressure ultraviolet (UV)/chlorine oxidation was investigated in this study. UV irradiation at 254nm and addition of free chlorine provided much higher removal rates of RR2 and color than UV irradiation or chlorination alone. Increasing the free chlorine dose enhanced the removal efficiency of RR2 and color by UV/chlorine oxidation. Experiments performed with nitrobenzene (NB) or benzoic acid (BA) as scavengers showed that radicals (especially OH) formed during UV/chlorine oxidation are important in the RR2 removal. Addition of HCO3(-) and Cl(-) to the RR2 solution did not inhibit the removal of RR2 during UV/chlorine oxidation.
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Affiliation(s)
- Qianyuan Wu
- Environmental Simulation and Pollution Control State Key Joint Laboratory, School of Environment, Tsinghua University, Beijing 100084, China; State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing 100084, China; Shenzhen Laboratory of Microorganism Application and Risk Control, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
| | - Yue Li
- Environmental Simulation and Pollution Control State Key Joint Laboratory, School of Environment, Tsinghua University, Beijing 100084, China; State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing 100084, China; Shenzhen Laboratory of Microorganism Application and Risk Control, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
| | - Wenlong Wang
- Environmental Simulation and Pollution Control State Key Joint Laboratory, School of Environment, Tsinghua University, Beijing 100084, China; State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing 100084, China; Shenzhen Laboratory of Microorganism Application and Risk Control, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
| | - Ting Wang
- Environmental Simulation and Pollution Control State Key Joint Laboratory, School of Environment, Tsinghua University, Beijing 100084, China; State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing 100084, China; Shenzhen Laboratory of Microorganism Application and Risk Control, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
| | - Hongying Hu
- Environmental Simulation and Pollution Control State Key Joint Laboratory, School of Environment, Tsinghua University, Beijing 100084, China; State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing 100084, China; Shenzhen Laboratory of Microorganism Application and Risk Control, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
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17
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Darvishi Cheshmeh Soltani R, Jorfi S, Ramezani H, Purfadakari S. Ultrasonically induced ZnO-biosilica nanocomposite for degradation of a textile dye in aqueous phase. ULTRASONICS SONOCHEMISTRY 2016; 28:69-78. [PMID: 26384885 DOI: 10.1016/j.ultsonch.2015.07.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Revised: 06/30/2015] [Accepted: 07/01/2015] [Indexed: 05/07/2023]
Abstract
In the present study, a porous clay-like support with unique characteristics was used for the synthesis and immobilization of ZnO nanostructures to be used as sonocatalyst for the sonocatalytic decolorization of methylene blue (MB) dye in the aqueous phase. As a result, the sonocatalytic activity of ZnO-biosilica nanocomposite (77.8%) was higher than that of pure ZnO nanostructures (53.6%). Increasing the initial pH from 3 to 10 led to increasing the color removal from 41.8% to 88.2%, respectively. Increasing the sonocatalyst dosage from 0.5 to 2.5 g/L resulted in increasing the color removal, while further increase up to 3g/L caused an obvious drop in the color removal. The sonocatalysis of MB dye over ZnO-biosilica nanocomposite was temperature-dependent. The presence of methanol produced the most adverse effect on the sonocatalysis of MB dye. The addition of chloride and carbonate ions had a negligible effect on the sonocatalysis, while the addition of persulfate ion led to increasing the color removal from 77.8% to 99.4% during 90 min. The reusability test exhibited a 15% drop in the color removal (%) within three consecutive experimental runs. A mineralization efficiency of 63.2% was obtained within 4h.
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Affiliation(s)
| | - Sahand Jorfi
- Environmental Technology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Hojjatallah Ramezani
- Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Sudabeh Purfadakari
- Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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18
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Li C, Zhu H, She X, Wang T, She F, Kong L. Selective removal of anionic dyes using poly(N,N-dimethyl amino ethylmethacrylate) functionalized graphene oxide. RSC Adv 2016. [DOI: 10.1039/c6ra09049d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An in situ polymerization strategy was used to functionalize graphene oxide (GO) with poly(N,N-dimethyl amino ethylmethacrylate) (PDMAEMA) for the selective removal of anionic dyes.
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Affiliation(s)
- Chengpeng Li
- Institute for Frontier Materials
- Deakin University
- Australia
| | - Haijin Zhu
- Institute for Frontier Materials
- Deakin University
- Australia
- Institute for Frontier Materials
- The ARC Centre of Excellence for Electromaterials Science
| | - Xiaodong She
- Institute for Frontier Materials
- Deakin University
- Australia
| | - Tao Wang
- School of Medicine
- Deakin University
- Australia
| | - Fenghua She
- Institute for Frontier Materials
- Deakin University
- Australia
| | - Lingxue Kong
- Institute for Frontier Materials
- Deakin University
- Australia
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19
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Zhao H, Zhang G, Chong S, Zhang N, Liu Y. MnO2/CeO2 for catalytic ultrasonic decolorization of methyl orange: Process parameters and mechanisms. ULTRASONICS SONOCHEMISTRY 2015; 27:474-479. [PMID: 26186869 DOI: 10.1016/j.ultsonch.2015.06.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Revised: 06/14/2015] [Accepted: 06/14/2015] [Indexed: 06/04/2023]
Abstract
MnO2/CeO2 catalyst was prepared and characterized by means of Brunauer-Emmet-Teller (BET) method, X-ray diffraction (XRD) and scanning electron microscope (SEM). The characterization showed that MnO2/CeO2 had big specific surface area and MnO2 was dispersed homogeneously on the surface of CeO2. Excellent degradation efficiency of methyl orange was achieved by MnO2/CeO2 catalytic ultrasonic process. Operating parameters were studied and optimized. The optimal conditions were 10 min of ultrasonic irradiation, 1.0 g/L of catalyst dose, 2.6 of pH value and 1.3 W/ml of ultrasonic density. Under the optimal conditions, nearly 90% of methyl orange was removed. The mechanism of methyl orange degradation was further studied. The decolorization mechanism in the ultrasound-MnO2/CeO2 system was quite different with that in the ultrasound-MnO2 system. Effects of manganese and cerium in catalytic ultrasonic process were clarified. Manganese ions in solution contributed to generating hydroxyl free radical. MnO2/CeO2 catalyst strengthened the oxidation ability of ultrasound and realized complete decolorization of methyl orange.
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Affiliation(s)
- He Zhao
- School of Environment & Natural Resource, Renmin University of China, 59 Zhongguancun Street, Beijing 100872, China
| | - Guangming Zhang
- School of Environment & Natural Resource, Renmin University of China, 59 Zhongguancun Street, Beijing 100872, China.
| | - Shan Chong
- School of Environment & Natural Resource, Renmin University of China, 59 Zhongguancun Street, Beijing 100872, China
| | - Nan Zhang
- School of Environment & Natural Resource, Renmin University of China, 59 Zhongguancun Street, Beijing 100872, China
| | - Yucai Liu
- School of Environment & Natural Resource, Renmin University of China, 59 Zhongguancun Street, Beijing 100872, China
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20
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Wang Y, Priambodo R, Zhang H, Huang YH. Degradation of the azo dye Orange G in a fluidized bed reactor using iron oxide as a heterogeneous photo-Fenton catalyst. RSC Adv 2015. [DOI: 10.1039/c5ra04238k] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Waste iron oxide could activate H2O2efficiently under UVA irradiation to degrade Orange G in a novel fluidized bed reactor.
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Affiliation(s)
- Yan Wang
- Department of Environmental Engineering
- Wuhan University
- Wuhan 430079
- China
- Department of Environmental Science and Engineering
| | - Ricky Priambodo
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan 701
- Taiwan
| | - Hui Zhang
- Department of Environmental Engineering
- Wuhan University
- Wuhan 430079
- China
| | - Yao-Hui Huang
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan 701
- Taiwan
- Sustainable Environmental Research Center
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