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Palanisamy G, Bhosale M, Magdum SS, Thangarasu S, Oh TH. Hybridization of Polymer-Encapsulated MoS 2-ZnO Nanostructures as Organic-Inorganic Polymer Films for Sonocatalytic-Induced Dye Degradation. Polymers (Basel) 2024; 16:2213. [PMID: 39125239 PMCID: PMC11314569 DOI: 10.3390/polym16152213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Revised: 07/27/2024] [Accepted: 07/30/2024] [Indexed: 08/12/2024] Open
Abstract
The development of environmentally friendly technology is vital to effectively address the issues related to environmental deterioration. This work integrates ZnO-decorated MoS2 (MZ) to create a high-performing PVDF-based PVDF/MoS2-ZnO (PMZ) hybrid polymer composite film for sonocatalytic organic pollutant degradation. An efficient synergistic combination of MZ was identified by altering the ratio, and its influence on PVDF was assessed using diverse structural, morphological, and sonocatalytic performances. The PMZ film demonstrated very effective sonocatalytic characteristics by degrading rhodamine B (RhB) dye with a degradation efficiency of 97.23%, whereas PVDF only degraded 17.7%. Combining MoS2 and ZnO reduces electron-hole recombination and increases the sonocatalytic degradation performance. Moreover, an ideal piezoelectric PVDF polymer with MZ enhances polarization to improve redox processes and dye degradation, ultimately increasing the degradation efficiency. The degradation efficiency of RhB was seen to decrease while employing isopropanol (IPA) and p-benzoquinone (BQ) due to the presence of reactive oxygen species. This suggests that the active species •O2- and •OH are primarily responsible for the degradation of RhB utilizing PMZ2 film. The PMZ film exhibited improved reusability without substantially decreasing its catalytic activity. The superior embellishment of ZnO onto MoS2 and effective integration of MZ into the PVDF polymer film results in improved degrading performance.
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Affiliation(s)
- Gowthami Palanisamy
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea; (M.B.); (S.S.M.); (S.T.)
| | | | | | | | - Tae-Hwan Oh
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea; (M.B.); (S.S.M.); (S.T.)
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2
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Yousif M, Ibrahim AH, Al-Rawi SS, Majeed A, Iqbal MA, Kashif M, Abidin ZU, Arbaz M, Ali S, Hussain SA, Shahzadi A, Haider MT. Visible light assisted photooxidative facile degradation of azo dyes in water using a green method. RSC Adv 2024; 14:16138-16149. [PMID: 38769951 PMCID: PMC11103459 DOI: 10.1039/d4ra01202j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 05/13/2024] [Indexed: 05/22/2024] Open
Abstract
In this study, the methyl orange (MO) dye has been degraded after screening several azo dyes due to its effective results and being toxic and carcinogenic to aquatic life and humans. An environmentally friendly, economical, and green method for water purification was used in this study using the photooxidative method. Several organic acids were screened for oxidative applications against various azo dyes but due to better results, methyl orange was selected for the whole study. Ascorbic acid, also known as vitamin C, was found to be best for photodegradation due to its high oxidative activity among various organic acids utilized. A newly developed photoreactor box has been used to conduct the photooxidation process. To evaluate the degradation efficiency of AsA, photooxidative activity was monitored periodically. When the dose of AsA was used at a contact time of 180 minutes, degradation efficiency was 96%. The analysis of degraded products was performed using HPLC and GC-MS. The nucleophilicity of HOMO-LUMO and MEPs was confirmed using density functional theory. For the optimization of the process, central composite design (CCD) in Response Surface Methodology (RSM) was utilized.
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Affiliation(s)
- Muhammad Yousif
- Department of Chemistry, University of Agriculture Faisalabad Faisalabad-38000 Pakistan
| | - Ahmad H Ibrahim
- Pharmacy Department, Faculty of Pharmacy, Tishk International University 100 m St, Near Baz Intersection Erbil KRG Iraq
| | - Sawsan S Al-Rawi
- Biology Education Department, Faculty of Education, Tishk International University 100 m St, Near Baz Intersection Erbil KRG Iraq
| | - Adnan Majeed
- Department of Chemistry, University of Agriculture Faisalabad Faisalabad-38000 Pakistan
| | - Muhammad Adnan Iqbal
- Department of Chemistry, University of Agriculture Faisalabad Faisalabad-38000 Pakistan
- Synthetic Organometallic and Coordination Chemistry Laboratory, University of Agriculture Faisalabad Faisalabad-38000 Pakistan
| | - Muhammad Kashif
- Department of Mathematics and Statistics, University of Agriculture Faisalabad Faisalabad-38000 Pakistan
| | - Zain Ul Abidin
- Department of Chemistry, University of Agriculture Faisalabad Faisalabad-38000 Pakistan
| | - Muhammad Arbaz
- Department of Chemistry, University of Agriculture Faisalabad Faisalabad-38000 Pakistan
| | - Shahzaib Ali
- Department of Chemistry, University of Agriculture Faisalabad Faisalabad-38000 Pakistan
| | - Syed Arslan Hussain
- Department of Chemistry, University of Agriculture Faisalabad Faisalabad-38000 Pakistan
| | - Anam Shahzadi
- Department of Chemistry, University of Agriculture Faisalabad Faisalabad-38000 Pakistan
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Norabadi E, Jahantiq A, Kamani H. Synthesis of Fe-TiO 2@Fe 3O 4 magnetic nanoparticles as a recyclable sonocatalyst for the degradation of 2, 4-dichlorophenol. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:31446-31460. [PMID: 36449236 DOI: 10.1007/s11356-022-24345-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 11/16/2022] [Indexed: 06/17/2023]
Abstract
2, 4-Dichlorophenol is a type of chlorophenol that, even at low concentrations, causes adverse effects such as anemia, coma, weakening of the nervous system, and cancer in humans and other organisms. Therefore, the aim of this study was to synthesize the Fe-TiO2@Fe3O4 sonocatalyst and to assess the removal efficiency of 2, 4-dichlorophenol using this sonocatalyst. Scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), value-stream mapping (VSM), Brunauer Emmett Teller (BET), and diffuse reflectance spectroscopy (DRS) analyses were performed for characterizing the synthesized nanoparticles. The effect of different factors, such as pH (3-9), initial concentration 2, 4-dichlorophenol (20-80 mg/L), and level of nanoparticles (200-600 mg/L) at different time points (15-90 min), was assessed on sonocatalytic removal of 2, 4-dichlorophenol, and then the reaction kinetics, process mechanism, and stability of the synthesized nanoparticles were determined under optimal conditions. The highest removal efficiency of 2, 4-dichlorophenol and constant reaction rate was obtained at pH of 5, the initial concentration of 20 mg/L, and the nanoparticles dose of 400 mg/L under ultrasound with a frequency of 35 kHz following the reaction time of 90 min. The maximum mineralization efficiency (total organic carbon TOC) under optimal conditions was 81%. Analysis of the degradation kinetics indicated that the 2, 4-dichlorophenol degradation can follow a first-order reaction. The stability of the synthesized sonocatalyst decreased by 91% after 5 re-uses. This study confirmed the efficiency of the Fe-TiO2@Fe3O4 sonocatalytic process in the degradation and mineralization of 2, 4-dichlorophenol.
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Affiliation(s)
- Elham Norabadi
- Student Research Committee, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Anis Jahantiq
- Student Research Committee, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Hossein Kamani
- Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.
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Fatimah I, Purwiandono G, Sahroni I, Sagadevan S, Doong RA. Flower-like hierarchical Sn3O4/montmorillonite nanostructure for the enhanced microwave-induced degradation of rhodamine B. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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5
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Oboudatian HS, Moradian M, Naeimi H. Morpholinum Sulphate Salt Immobilized Onto Magnetic NPs Catalyzed Sonication Green Synthesis of Dihydropyrimidinones. J CLUST SCI 2022. [DOI: 10.1007/s10876-021-02214-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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El-Shamy AG. Novel in-situ synthesis of nano-silica (SiO2) embedded into polyvinyl alcohol for dye removal: Adsorption and photo-degradation under visible light. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124579] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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7
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Optimization of Facile Synthesized ZnO/CuO Nanophotocatalyst for Organic Dye Degradation by Visible Light Irradiation Using Response Surface Methodology. Catalysts 2021. [DOI: 10.3390/catal11121509] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this study, we aimed to observe how different operating parameters influenced the photocatalytic degradation of rhodamine B (RhB, cationic dye) and bromophenol Blue (BPB, anionic dye) over ZnO/CuO under visible light irradiation. This further corroborated the optimization study employing the response surface methodology (RSM) based on central composite design (CCD). The synthesis of the ZnO/CuO nanocomposite was carried out using the co-precipitation method. The synthesized samples were characterized via the XRD, FT-IR, FE-SEM, Raman, and BET techniques. The characterization revealed that the nanostructured ZnO/CuO formulation showed the highest surface area (83.13 m2·g−1). Its surface area was much higher than that of pure ZnO and CuO, thereby inheriting the highest photocatalytic activity. To substantiate this photocatalytic action, the investigative analysis was carried out at room temperature, associating first-order kinetics at a rate constant of 0.0464 min−1 for BPB and 0.07091 min−1 for RhB. We examined and assessed the binary interactions of the catalyst dosage, concentration of dye, and irradiation time. The suggested equation, with a high regression R2 value of 0.99701 for BPB and 0.9977 for RhB, accurately matched the experimental results. Through ANOVA we found that the most relevant individual parameter was the irradiation time, followed by catalyst dose and dye concentration. In a validation experiment, RSM based on CCD was found to be suitable for the optimization of the photocatalytic degradation of BPB and RhB over ZnO/CuO photocatalysts, with 98% degradation efficiency.
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Visible-light-driven and ultrasonic-assisted copper metal-organic frameworks and graphene oxide nanocomposite for decolorization of dyes. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122627] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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9
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Ding Z, Sun M, Liu W, Sun W, Meng X, Zheng Y. Ultrasonically synthesized N-TiO2/Ti3C2 composites: Enhancing sonophotocatalytic activity for pollutant degradation and nitrogen fixation. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119287] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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10
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de Andrade FV, Augusti R, de Lima GM. Ultrasound for the remediation of contaminated waters with persistent organic pollutants: A short review. ULTRASONICS SONOCHEMISTRY 2021; 78:105719. [PMID: 34450413 PMCID: PMC8387924 DOI: 10.1016/j.ultsonch.2021.105719] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 08/10/2021] [Accepted: 08/11/2021] [Indexed: 05/14/2023]
Abstract
The rising amount of persistent organic contaminants released into water reservoirs in the last years became a cause of concern for the industry, academy, and public administration, due to their bioaccumulation, mutagenicity, and photosynthesis reduction. Therefore, the search for processes that efficiently remove such contaminants became of primary importance. In this context, ultrasound (US) is one of the most promising and economically viable alternatives to degrade organic pollutants in varied environments. Whereas the use of other advanced oxidation processes (AOPs), such as Fenton and photocatalysis, has been widely reported for this purpose, only a few papers deal with ultrasound application as a possible AOP. In this review, a general overview of ultrasound is provided, covering the last twenty years. It includes fundamental aspects of ultrasound and applications, individually or combined with other AOPs, to deplete organic pollutants from various classes in an aqueous environment. Finally, the review concludes by indicating that additional research should be conducted worldwide to explore the full potential of ultrasound as a useful AOP.
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Affiliation(s)
- F V de Andrade
- Universidade Federal de Itajubá - Campus Itabira, Advanced Ceramic Materials Laboratory - LCAv, Research Group in Materials and Nanoscience - GPMN, Rua Irmã Ivone Drumond, 200 - Distrito Industrial II, 35903-087 Itabira, MG, Brazil.
| | - R Augusti
- Universidade Federal de Minas Gerais, Department of Chemistry, Av. Antônio Carlos, 6627, Pampulha, 31270-901 Belo Horizonte MG, Brazil
| | - G M de Lima
- Universidade Federal de Minas Gerais, Department of Chemistry, Av. Antônio Carlos, 6627, Pampulha, 31270-901 Belo Horizonte MG, Brazil
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11
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Sadeghi M, Farhadi S, Zabardasti A. Construction of magnetic MgFe 2O 4/CdS/MoS 2 ternary nanocomposite supported on NaY zeolite and highly efficient sonocatalytic degradation of organic pollutants. RSC Adv 2020; 10:44034-44049. [PMID: 35517154 PMCID: PMC9058412 DOI: 10.1039/d0ra08831e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/01/2020] [Indexed: 11/21/2022] Open
Abstract
In this work, the novel magnetically separable NaY zeolite/MgFe2O4/CdS nanorods/MoS2 nanoflowers nanocomposite was successfully synthesized through the ultrasonic-assisted solvothermal approach. FESEM, EDAX, XRD, FTIR, TEM, AFM, VSM, N2-BET, UV-vis DRS and PL were utilized to identify the as-synthesized nanocomposite. Subsequently, the sonocatalytic activity of this nanocomposite was assessed in the degradation of organic dyes, including methylene blue (MB), rhodamine B (RhB) and methyl orange (MO) from water solutions for the first time. Several analytical parameters like irradiation time, process type, initial MB concentration, H2O2 concentration, catalyst dosage, organic dye type, and US power have been systematically investigated to attain the maximum sonocatalytic yield. Regarding the acquired data, the NaY/MgFe2O4/CdS NRs/MoS2 NFs sonocatalyst was incredibly able to completely eliminate the MB via engaging the US/H2O2 system. The kinetic evaluates demonstrated the sonodegradation reactions of the MB followed a first-order model. The apparent rate constant (k app) and half-life time (t 1/2) acquired for the sonodegradation process of MB utilizing the US/H2O2/NaY/MgFe2O4/CdS NRs/MoS2 NFs system were measured to be 1.162 min and 0.596 min-1, respectively. The free ˙OH radicals were also recognized as the main reactive oxygen species in the MB sonodegradation process under US irradiation. In addition, the outcomes of the recyclability study of the NaY/MgFe2O4/CdS NRs/MoS2 NFs sonocatalytic clearly displayed a less than 6% drop of the catalytic activity in up to four sequential runs. Lastly, a plausible mechanism for the sonodegradation reaction of organic dyes was suggested and discussed.
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Affiliation(s)
- Meysam Sadeghi
- Department of Chemistry, Lorestan University Khorramabad 68151-433 Iran +98 66 33120618 +98 66 33120611
| | - Saeed Farhadi
- Department of Chemistry, Lorestan University Khorramabad 68151-433 Iran +98 66 33120618 +98 66 33120611
| | - Abedin Zabardasti
- Department of Chemistry, Lorestan University Khorramabad 68151-433 Iran +98 66 33120618 +98 66 33120611
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Nas MS, Kaya H. Synthesis and sonocatalytic performance of bimetallic AgCu@MWCNT nanocatalyst for the degradation of methylene blue under ultrasonic irradiation. INORG NANO-MET CHEM 2020. [DOI: 10.1080/24701556.2020.1799406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Mehmet Salih Nas
- Department of Environmental Engineering, Faculty of Engineering, Igdir University, Igdir, Turkey
| | - Halis Kaya
- Department of Environmental Engineering, Faculty of Engineering, Igdir University, Igdir, Turkey
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13
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Eivazzadeh‐Keihan R, Noruzi EB, Radinekiyan F, Salimi Bani M, Maleki A, Shaabani B, Haghpanahi M. Synthesis of Core-Shell Magnetic Supramolecular Nanocatalysts based on Amino-Functionalized Calix[4]arenes for the Synthesis of 4H-Chromenes by Ultrasonic Waves. ChemistryOpen 2020; 9:735-742. [PMID: 32626643 PMCID: PMC7327476 DOI: 10.1002/open.202000005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 03/01/2020] [Indexed: 12/20/2022] Open
Abstract
One of the most common phenol-formaldehyde cyclic oligomers from hydroxyalkylation reactions that exhibit supramolecular chemistry are calixarenes. These macrocyclic compounds are qualified to act as synthetic catalysts due to their specific features including being able to form host-guest complexes, having unique structural scaffolds and their relative ease of chemical modifications with a variety of functions on their upper rim and lower rim. Here, a functional magnetic nanocatalyst was designed and synthesized by using a synthetic amino-functionalized calix[4]arene. Its catalytic activity was evaluated in a one-pot synthesis of 2-amino-4H-chromene derivatives. Besides, this novel magnetic nanocatalyst was characterized by spectroscopic and analytical techniques such as FT-IR, EDX, FE-SEM, TEM VSM, XRD analysis.
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Affiliation(s)
- Reza Eivazzadeh‐Keihan
- Catalysts and Organic Synthesis Research Laboratory, Department of ChemistryIran University of Science and TechnologyTehran16846-13114Iran
| | - Ehsan Bahojb Noruzi
- Faculty of Chemistry, Department of Inorganic ChemistryUniversity of TabrizTabrizIran
| | - Fateme Radinekiyan
- Catalysts and Organic Synthesis Research Laboratory, Department of ChemistryIran University of Science and TechnologyTehran16846-13114Iran
| | - Milad Salimi Bani
- School of Mechanical EngineeringIran University of Science and TechnologyTehranIran
| | - Ali Maleki
- Catalysts and Organic Synthesis Research Laboratory, Department of ChemistryIran University of Science and TechnologyTehran16846-13114Iran
| | - Behrouz Shaabani
- Faculty of Chemistry, Department of Inorganic ChemistryUniversity of TabrizTabrizIran
| | - Mohammad Haghpanahi
- School of Mechanical EngineeringIran University of Science and TechnologyTehranIran
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Wang Z, Feng P, Chen H, Yu Q. Photocatalytic performance and dispersion stability of nanodispersed TiO 2 hydrosol in electrolyte solutions with different cations. J Environ Sci (China) 2020; 88:59-71. [PMID: 31862080 DOI: 10.1016/j.jes.2019.07.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 07/17/2019] [Accepted: 07/18/2019] [Indexed: 06/10/2023]
Abstract
The existence of electrolytes in aquatic environment on the photocatalytic performance and coagulation of nanodispersed TiO2 hydrosol and the corresponding photocatalytic alteration were investigated by studying cations (Na+, K+, Ca 2+, Mg2+, and Al3+). The photocatalysis reactions of nano TiO2 with different dosages of electrolytes were measured by monitoring the degradation of Rhodamine B (RhB) under ultraviolet A (UV-A) irradiation over time. The results showed that the photocatalytic performance of TiO2 was improved by the presence of Al3+, while the performance was impaired by the other tested cations. The negative influences of divalent ions on the photocatalytic performance of TiO2 were more significant than monovalent ions. The TiO2 sol dispersed stable at nano scale at low concentration of electrolyte (<0.01 mol/L) with slight change of pH, and coagulated into micro sizes at high concentration of electrolytes (>0.1 mol/L) with larger increase or decrease of pH. The positive effects of Al3+ on the photodegradation rate of RhB might relate to the strong hydrolytic action of Al3+ in aquatic solutions. The photocatalytic processes of TiO2 in the presence of all ions followed the Langmuir-Hinshelwood model, and the reaction kinetic constant was increased with the decrease of pH caused by different cations. These work suggested a new perspective about the relationship between coagulation and photocatalytic performance of TiO2 hydrosols in electrolyte with hydrolysable cations, which demonstrated that TiO2 hydrosols may be suitable as photocatalysts in aquatic environments.
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Affiliation(s)
- Zixiao Wang
- Jiangsu Key Laboratory of Construction Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China; Department of the Built Environment, Eindhoven University of Technology, 5600 MB Eindhoven, the Netherlands
| | - Pan Feng
- Jiangsu Key Laboratory of Construction Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China; State Key Laboratory of High Performance Civil Engineering Materials, Nanjing 210008, China.
| | - Heng Chen
- Jiangsu Key Laboratory of Construction Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
| | - Qingliang Yu
- Department of the Built Environment, Eindhoven University of Technology, 5600 MB Eindhoven, the Netherlands; School of Civil Engineering, Wuhan University, Wuhan 430072, China.
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15
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Andani AM, Tabatabaie T, Farhadi S, Ramavandi B. MIL-101(Cr)–cobalt ferrite magnetic nanocomposite: synthesis, characterization and applications for the sonocatalytic degradation of organic dye pollutants. RSC Adv 2020; 10:32845-32855. [PMID: 35516469 PMCID: PMC9056608 DOI: 10.1039/d0ra04945j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 08/14/2020] [Indexed: 01/25/2023] Open
Abstract
In this study, for the first time, a novel magnetically recyclable MIL-101(Cr)/CoFe2O4 nanocomposite was prepared via a facile solvothermal method. The morphology, structural, magnetic and optical properties of the nanocomposite were characterized via field emission scanning electron microscopy (FE-SEM), transmission electron microscope (TEM), energy dispersive X-ray (EDX) spectroscopy, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), vibrating sample magnetometer (VSM), UV-visible spectroscopy (UV-visible) and BET surface area analysis. Furthermore, the sonocatalytic activity of the MIL-101(Cr)-based magnetic nanocomposite was explored for the degradation of organic dye pollutants such as Rhodamine B (RhB) and methyl orange (MO) under ultrasound irradiation in the presence of H2O2. Under optimized conditions, the degradation efficiency reached 96% for RhB and 88% for MO. The sonocatalytic activity of MIL-101(Cr)/CoFe2O4 was almost 12 and 4 times higher than that of the raw MIL-101(Cr) and pure CoFe2O4, respectively. The improved sonocatalytic performance of the as-prepared binary nanocomposite can be attributed to the relatively high specific surface area of MIL-101(Cr) and magnetic property of CoFe2O4, as well as the fast generation and separation of charge carriers (electrons and holes) in MIL-101(Cr) and CoFe2O4. In addition, the trapping tests demonstrated that ·OH radicals are the main active species in the dye degradation process. Moreover, the most influencing factors on the sonocatalytic activity such as the H2O2 amount, initial dye concentration and catalyst dosage were investigated. Finally, the nanocomposite was magnetically separated and reused without any observable change in its structure and performance even after four consecutive runs. A magnetically separable MIL-101(Cr)/CoFe2O4 binary nanocomposite was prepared via a hydrothermal route and applied as a sonocatalyst for the efficient degradation of organic dyes.![]()
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Affiliation(s)
| | - Tayebeh Tabatabaie
- Department of Environment
- Bushehr Branch
- Islamic Azad University
- Bushehr
- Iran
| | - Saeed Farhadi
- Department of Chemistry
- Lorestan University
- Khoramabad 68151-433
- Iran
| | - Bahman Ramavandi
- Department of Environmental Health Engineering
- Faculty of Health and Nutrition
- Bushehr University of Medical Sciences
- Bushehr
- Iran
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16
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Wu Q, Zhang Z. Fabrication of black TiO 2−x/CuFe 2O 4 decorated on diatomaceous earth with enhanced sonocatalytic activity for ibuprofen mitigation. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01478h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study reports facile fabrication of black TiO2−x/CuFe2O4 (Ti3+ self-doped titania coupled with copper ferrite), an efficient sonocatalyst for ibuprofen (IBP) mitigation.
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Affiliation(s)
- Qiong Wu
- College of Environment
- Liaoning University
- Shenyang 110036
- P. R. China
| | - Zhaohong Zhang
- College of Environment
- Liaoning University
- Shenyang 110036
- P. R. China
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17
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Madhavan J, Theerthagiri J, Balaji D, Sunitha S, Choi MY, Ashokkumar M. Hybrid Advanced Oxidation Processes Involving Ultrasound: An Overview. Molecules 2019; 24:molecules24183341. [PMID: 31540329 PMCID: PMC6767267 DOI: 10.3390/molecules24183341] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/09/2019] [Accepted: 09/11/2019] [Indexed: 12/07/2022] Open
Abstract
Sonochemical oxidation of organic pollutants in an aqueous environment is considered to be a green process. This mode of degradation of organic pollutants in an aqueous environment is considered to render reputable outcomes in terms of minimal chemical utilization and no need of extreme physical conditions. Indiscriminate discharge of toxic organic pollutants in an aqueous environment by anthropogenic activities has posed major health implications for both human and aquatic lives. Hence, numerous research endeavours are in progress to improve the efficiency of degradation and mineralization of organic contaminants. Being an extensively used advanced oxidation process, ultrasonic irradiation can be utilized for complete mineralization of persistent organic pollutants by coupling/integrating it with homogeneous and heterogeneous photocatalytic processes. In this regard, scientists have reported on sonophotocatalysis as an effective strategy towards the degradation of many toxic environmental pollutants. The combined effect of sonolysis and photocatalysis has been proved to enhance the production of high reactive-free radicals in aqueous medium which aid in the complete mineralization of organic pollutants. In this manuscript, we provide an overview on the ultrasound-based hybrid technologies for the degradation of organic pollutants in an aqueous environment.
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Affiliation(s)
- Jagannathan Madhavan
- Solar Energy Lab, Department of Chemistry, Thiruvalluvar University, Vellore 632115, Tamilnadu, India;
- Correspondence: (J.M.); (M.A.)
| | - Jayaraman Theerthagiri
- Centre of Excellence for Energy Research, Sathyabama Institute of Science and Technology, Deemed to be University, Chennai 600119, India;
- Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea;
| | - Dhandapani Balaji
- Solar Energy Lab, Department of Chemistry, Thiruvalluvar University, Vellore 632115, Tamilnadu, India;
| | - Salla Sunitha
- Department of Chemistry, Sathyabama Institute of Science and Technology, Deemed to be University, Chennai 600119, India;
| | - Myong Yong Choi
- Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea;
| | - Muthupandian Ashokkumar
- School of Chemistry, University of Melbourne, Parkville campus, Melbourne, VIC 3010, Australia
- Correspondence: (J.M.); (M.A.)
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18
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Dinesh GK, Chakma S. Degradation kinetic study of cholesterol lowering statin drug using sono-hybrid techniques initiated by metal-free polymeric catalyst. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.04.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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19
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Lops C, Ancona A, Di Cesare K, Dumontel B, Garino N, Canavese G, Hérnandez S, Cauda V. Sonophotocatalytic degradation mechanisms of Rhodamine B dye via radicals generation by micro- and nano-particles of ZnO. APPLIED CATALYSIS. B, ENVIRONMENTAL 2019; 243:629-640. [PMID: 30886458 PMCID: PMC6420045 DOI: 10.1016/j.apcatb.2018.10.078] [Citation(s) in RCA: 173] [Impact Index Per Article: 34.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
In this work, it is proposed an environmental friendly sonophotocatalytic approach to efficiently treat polluted waters from industrial dyes exploiting ZnO micro- and nano-materials. For the first time, we deeply investigated the generation of reactive oxygen species (ROS) under ultrasound stimulation of different ZnO structures by Electron Paramagnetic Resonance Spectroscopy (EPR). Indeed, five zinc oxide (ZnO) micro- and nano-structures, i.e. Desert Roses (DRs), Multipods (MPs), Microwires (MWs), Nanoparticles (NPs) and Nanowires (NWs), were studied for the Rhodamine B (RhB) sonodegradation under ultrasonic irradiation. The DRs microparticles demonstrated the best sonocatalytic performance (100% degradation of RhB in 180 min) and the highest OH· radicals generation under ultrasonic irradiation. Strikingly, the coupling of ultrasound and sun-light irradiation in a sonophotodegradation approach led to 100% degradation efficiency, i.e. color reduction, of RhB in just 10 min, revealing a great positive synergy between the photocatalytic and sonocatalytic mechanisms. The RhB sonophotocatalytic degradation was also evaluated at different initial dye concentrations and with the presence of anions in solution. It was demonstrated a good stability over repeated cycles of dye treatment, which probe the applicability of this technique with industrial effluents. In conclusion, sonophotocatalytic degradation synergizing sunlight and ultrasound in the presence of DRs microparticles shows a great potential and a starting point to investigate further the efficient treatment of organic dyes in wastewater.
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Affiliation(s)
- Carmine Lops
- Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Turin, Italy
| | - Andrea Ancona
- Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Turin, Italy
| | - Katia Di Cesare
- Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Turin, Italy
| | - Bianca Dumontel
- Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Turin, Italy
| | - Nadia Garino
- Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Turin, Italy
- Center for Sustainable Future Technologies – CSFT@POLITO, Istituto Italiano di Tecnologia, Corso Trento 21, 10129 Turin, Italy
| | - Giancarlo Canavese
- Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Turin, Italy
| | - Simelys Hérnandez
- Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Turin, Italy
- Center for Sustainable Future Technologies – CSFT@POLITO, Istituto Italiano di Tecnologia, Corso Trento 21, 10129 Turin, Italy
| | - Valentina Cauda
- Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Turin, Italy
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20
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Zając K, Janus M, Morawski AW. Improved Self-Cleaning Properties of Photocatalytic Gypsum Plaster Enriched with Glass Fiber. MATERIALS 2019; 12:ma12030357. [PMID: 30678342 PMCID: PMC6384851 DOI: 10.3390/ma12030357] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 01/16/2019] [Accepted: 01/22/2019] [Indexed: 11/16/2022]
Abstract
In the study the self-cleaning properties of photoactive gypsum plasters are presented. The modified gypsum plasters were obtained by addition of 1 and 3 wt.% of nitrogen-modified titanium dioxide (TiO2/N) and 0.1, 0.3, and 0.5 wt.% of glass fiber. The self-cleaning ability of the obtained materials was tested during two dyes decomposition: Methylene Blue (MB) and Reactive Orange (RO). It was found that presence of glass fiber increased photocatalytic activity of modified gypsum plasters, which may be due to the fact glass fiber may act as ducts for light and transport it to sites screened by TiO2 or glass fiber can retard charge recombination. Moreover, unexpectedly the addition of glass fiber did not increase the mechanical properties of modified gypsum plasters, which may be because gypsum does not strongly adhere to the surface of glass fibers.
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Affiliation(s)
- Kamila Zając
- Faculty of Civil Engineering and Architecture, West Pomeranian University of Technology, 70-311 Szczecin, Poland.
| | - Magdalena Janus
- Faculty of Civil Engineering and Architecture, West Pomeranian University of Technology, 70-311 Szczecin, Poland.
| | - Antoni W Morawski
- Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, 70-310 Szczecin, Poland.
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21
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Dinesh GK, Chakma S. Mechanistic investigation in degradation mechanism of 5-Fluorouracil using graphitic carbon nitride. ULTRASONICS SONOCHEMISTRY 2019; 50:311-321. [PMID: 30270007 DOI: 10.1016/j.ultsonch.2018.09.032] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 09/11/2018] [Accepted: 09/22/2018] [Indexed: 06/08/2023]
Abstract
The present study reports the synthesis of metal-free polymeric catalyst, graphitic carbon nitride (g-C3N4), through sonochemical method followed by thermal treatment. The synthesized g-C3N4 was characterized using XRD, DRS, FESEM, TGA, EDX, etc. and the characterization results revealed that it possesses medium band-gap energy, high thermal and chemical stability. The photo-activity of the catalyst was also evaluated using degradation of 5-Fluorouracil under different experimental conditions. The results revealed that the addition of H2O2 during sonolysis process did not show any significant synergy. This is attributed to the low vapor pressure of H2O2 that does not allow it to diffuse into the cavitation bubble to produce OH radicals through sonolysis process. Using sono-hybrid process, more than 90% degradation was seen within 5 min of treatment with a rate constant of 3.95 × 10-2 s-1. In alkaline medium, 5-Fluorouracil degradation occurred through defluorination and subsequently substitution of -OH group to the aromatic ring leading to formation of intermediates such as 2-fluoro-3-oxopropanoic acid and urea. While sono-hybrid advanced oxidation processes (AOPs) helped towards complete mineralization through formation of smaller molecular compounds such as maleic acids, lactic acids, propanol, etc. On the other hand, the maximum synergy effect of ∼2.4 was seen for sonocatalysis process followed by hybrid-AOPs of (US + g-C3N4 + H2O2 + UVC) with a synergy factor of ∼2.2. Also, the synthesized catalyst exhibited the same catalytic activity even after 5 runs of sono-photocatalysis process for degradation of 5-Fluorouracil.
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Affiliation(s)
- G Kumaravel Dinesh
- Department of Chemical Engineering, Indian Institute of Science Education and Research, Bhopal 462066, M.P., India
| | - Sankar Chakma
- Department of Chemical Engineering, Indian Institute of Science Education and Research, Bhopal 462066, M.P., India.
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22
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Yao Y, Sun M, Yuan X, Zhu Y, Lin X, Anandan S. One-step hydrothermal synthesis of N/Ti 3+ co-doping multiphasic TiO 2/BiOBr heterojunctions towards enhanced sonocatalytic performance. ULTRASONICS SONOCHEMISTRY 2018; 49:69-78. [PMID: 30057180 DOI: 10.1016/j.ultsonch.2018.07.025] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 07/18/2018] [Accepted: 07/18/2018] [Indexed: 05/17/2023]
Abstract
N/Ti3+ co-doping multiphasic TiO2/BiOBr heterojunctions (NT-TBx) were prepared by one-step in situ hydrothermal processes. The crystal phase, morphology, component, and optical properties of the heterojunctions were characterized by X-ray diffraction, scanning electron microscope, transmission electron microscope, X-ray photoelectron spectroscopy, and Ultraviolet-visible diffuse reflectance spectroscopy techniques, respectively. The as-prepared samples exhibit better sonocatalytic activity for the degradation methylene blue, Rhodamine B, and p-Nitrophenol aqueous solution compared with pristine TiO2 and N/Ti3+ co-doping multiphasic TiO2. Especially, the highest degradation ratio of methylene blue was achieved for NT-TB0.3 up to 98.2% after 50 min under ultrasonic irradiation. The high sonocatalytic activity has been kept after four cycles with the tiny decline, indicating the excellent stability of the as-prepared samples. The improvement of sonocatalytic activity could be attributed to the formation of doping level and multiphasic TiO2/BiOBr heterojunctions, which account for the absorption of long wavelength light and the electron-hole pair separation, respectively. Furthermore, superoxide radical (O2-) was demonstrated to be the main reactive species for the degradation of methylene blue under ultrasonic irradiation. This study provides a facile fabrication procedure for N/Ti3+ co-doping multiphasic TiO2/BiOBr heterojunctions and demonstrates an efficient route to promote the application of TiO2 in addressing environment-related issues.
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Affiliation(s)
- Yuan Yao
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Mingxuan Sun
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China; Shanghai Collaborative Innovation Center of Laser Advanced Manufacturing Technology, Shanghai 201620, China; State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002, China.
| | - Xiaojiao Yuan
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Yuanhua Zhu
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Xiaojing Lin
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Sambandam Anandan
- Nanomaterials & Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Trichy, Tamil Nadu, India
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23
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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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24
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Qiu P, Park B, Choi J, Thokchom B, Pandit AB, Khim J. A review on heterogeneous sonocatalyst for treatment of organic pollutants in aqueous phase based on catalytic mechanism. ULTRASONICS SONOCHEMISTRY 2018; 45:29-49. [PMID: 29705323 DOI: 10.1016/j.ultsonch.2018.03.003] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 03/03/2018] [Accepted: 03/03/2018] [Indexed: 05/25/2023]
Abstract
Heterogeneous sonocatalysis, as an emerging advanced oxidation process (AOP), has shown immense potential in water treatment and been widely demonstrated to remove persistent organic compounds in the past decade. The present article aims to provide a comprehensive review on the development of a heterogeneous catalyst for enhancing the ultrasonic degradation rate of organic pollutants from a viewpoint of sonocatalytic mechanism. The rational design and fundamentals for preparing sonocatalysts are presented in the context of facilitating the heterogeneous nucleation and photo-thermal-catalytic effects as well as considering the mechanical stability and separation capacity of the heterogeneous catalyst. In addition, some new trends, ongoing challenges and possible methods to overcome these challenges are also highlighted and proposed.
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Affiliation(s)
- Pengpeng Qiu
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 136-701, Republic of Korea
| | - Beomguk Park
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 136-701, Republic of Korea
| | - Jongbok Choi
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 136-701, Republic of Korea
| | - Binota Thokchom
- Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Aniruddha B Pandit
- Department of Chemical Engineering, Institute of Chemical Technology, Mumbai 40019, India
| | - Jeehyeong Khim
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 136-701, Republic of Korea.
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25
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Nirumand L, Farhadi S, Zabardasti A, Khataee A. Synthesis and sonocatalytic performance of a ternary magnetic MIL-101(Cr)/RGO/ZnFe 2O 4 nanocomposite for degradation of dye pollutants. ULTRASONICS SONOCHEMISTRY 2018; 42:647-658. [PMID: 29429713 DOI: 10.1016/j.ultsonch.2017.12.033] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 12/16/2017] [Accepted: 12/17/2017] [Indexed: 06/08/2023]
Abstract
In this study, new ternary magnetic MIL-101(Cr)/RGO/ZnFe2O4 catalyst (with 30% wt of ZnFe2O4) was synthesized via a hydrothermal route for sonodegradation of organic dyes. The structural, optical and magnetic properties of the nanocomposite were detected by means of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), UV-visible spectroscopy (UV-visible), field emission scanning electron microscopy (FESEM), energy dispersive X-ray (EDX) spectroscopy, vibrating sample magnetometer (VSM), atomic force microscopy (AFM), Raman spectroscopy and BET surface area analysis. To evaluate the sonocatalytic activity of the as-prepared MIL-101(Cr)/RGO/ZnFe2O4 nanocomposite, the H2O2-assisted degradation of organic dyes such as congo red (CR), methylene blue (MB), Rhodamine B (RhB) and methyl orange (MO) in aqueous solution was studied under ultrasound irradiation. The obtained results indicated that the ternary MIL-101(Cr)/RGO/ZnFe2O4 nanocomposite had better performance for sonodegradation of these dyes than MIL-101(Cr)/RGO, pure MIL-101(Cr) or ZnFe2O4. The enhanced sonocatalytic performance of the as-prepared ternary nanocomposite could be attributed to the fast generation and separation of charge carriers (electrons and holes) in ZnFe2O4and MIL-101(Cr) and their transfer to the surface of graphene sheets. Moreover, the relatively high specific surface area of the MIL-101(Cr)/rGO and magnetic property of ZnFe2O4 improve the degradation efficiency of the dyes. The recovery of the ternary magnetic sonocatalyst from treated water could be easily achieved using an external magnetic field. The main influence factors on the sonocatalytic activity such as catalyst dosage and dye initial concentration were also investigated. The trapping experiments indicated that OH radicals are the prominent active species in dye degradation. In addition, the reusability test, was also carried out to ensure the stability of the employed sonocatalyst.
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Affiliation(s)
- Ladan Nirumand
- Department of Chemistry, Lorestan University, Khoramabad 68135-465, Iran
| | - Saeed Farhadi
- Department of Chemistry, Lorestan University, Khoramabad 68135-465, Iran.
| | - Abedin Zabardasti
- Department of Chemistry, Lorestan University, Khoramabad 68135-465, Iran
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471 Tabriz, Iran; Department of Materials Science and Nanotechnology Engineering, Near East University, 99138 Nicosia, North Cyprus, Mersin 10, Turkey.
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26
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Zhang H, Qiao J, Li G, Li S, Wang G, Wang J, Song Y. Preparation of Ce 4+-doped BaZrO 3 by hydrothermal method and application in dual-frequent sonocatalytic degradation of norfloxacin in aqueous solution. ULTRASONICS SONOCHEMISTRY 2018; 42:356-367. [PMID: 29429680 DOI: 10.1016/j.ultsonch.2017.11.043] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 11/27/2017] [Accepted: 11/28/2017] [Indexed: 06/08/2023]
Abstract
In this paper, the dual-frequent sonocatalytic degradation of norfloxacin (NOR), an antibiotic, caused by Ce4+-doped BaZrO3 is studied. The used Ce4+-doped BaZrO3 as a novel sonocatalyst with highly efficient and stable sonocatalytic activity is prepared via hydrothermal method. The prepared sample is characterized by X-ray diffractometer (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS), UV-vis diffuse reflectance spectra (DRS) and Fourier transform infrared spectra (FT-IR) in order to investigate the structure, morphology and chemical composition. The dual-frequent sonocatalytic activity of prepared Ce4+-doped BaZrO3 powder is evaluated through sonocatalytic degradation of norfloxacin (NOR) as a model organic pollutant. Some influencing factors such as single/dual-frequent ultrasonic frequent, cerium and zirconium molar proportions, ultrasonic irradiation time and used times are studied in detail by using UV-vis spectra. The generated reactive oxygen species (ROS) during the dual-frequent sonocatalytic degradation process of norfloxacin (NOR) are confirmed by using two different trapping agents. The holes (h+) and hydroxyl radicals (OH) are identified and the holes plays a major role during the oxidation process. Finally, the possible mechanism for the dual-frequent sonocatalytic degradation of norfloxacin (NOR) caused by Ce4+-doped BaZrO3 is proposed. The experimental results show that the Ce4+-doped BaZrO3 displays a good sonocatalytic activity under dual-frequent ultrasonic irradiation. Under optimal conditions, the most of norfloxacin (NOR) can be removed under dual-frequent ultrasonic irradiation for 150 min.
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Affiliation(s)
- Hongbo Zhang
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| | - Jing Qiao
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| | - Guanshu Li
- College of Environment, Liaoning University, Shenyang 110036, PR China
| | - Siyi Li
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| | - Guowei Wang
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| | - Jun Wang
- College of Chemistry, Liaoning University, Shenyang 110036, PR China.
| | - Youtao Song
- College of Environment, Liaoning University, Shenyang 110036, PR China.
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27
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Hassani A, Khataee A, Karaca S, Karaca C, Gholami P. Sonocatalytic degradation of ciprofloxacin using synthesized TiO 2 nanoparticles on montmorillonite. ULTRASONICS SONOCHEMISTRY 2017; 35:251-262. [PMID: 27720593 DOI: 10.1016/j.ultsonch.2016.09.027] [Citation(s) in RCA: 108] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 09/30/2016] [Accepted: 09/30/2016] [Indexed: 06/06/2023]
Abstract
TiO2/Montmorillonite (TiO2/MMT) nanocomposite as sonocatalyst was produced by immobilizing synthesized TiO2 on the surface of montmorillonite. The characteristics of produced nanocomposite were investigated using XRD, XRF, FTIR, TEM, SEM, EDX, UV-vis DRS and nitrogen adsorption-desorption analyses. The synthesized TiO2 and TiO2/MMT samples were applied as catalysts for sonocatalytic degradation of ciprofloxacin (CIP). The performance of the TiO2/MMT was greater than pure TiO2 sample in treatment of CIP solution. The degradation efficiency of the CIP by sonocatalytic process was affected by solution pH, catalyst dosage, initial CIP concentrations and ultrasonic power. Degradation efficiency of 65.01% was obtained at the pH of 6, catalyst dosage of 0.2gL-1, initial CIP concentration of 10mgL-1 and ultrasonic power of 650WL-1. It was observed that the presence of inorganic and organic scavengers suppressed the performance of sonocatalytic process. The stability of the nanocomposite was studied in several successive experiments, and the degradation efficiency declined only 61.48% after 4 repeated experiments. The main degradation by-products were recognized by GC-MS method to propose the possible sonocatalytic mechanism for the degradation of CIP.
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Affiliation(s)
- Aydin Hassani
- Department of Chemistry, Faculty of Science, Atatürk University, 25240 Erzurum, Turkey.
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471 Tabriz, Iran; Department of Materials Science and Nanotechnology, Near East University, 99138 Nicosia, North Cyprus, Mersin 10, Turkey.
| | - Semra Karaca
- Department of Chemistry, Faculty of Science, Atatürk University, 25240 Erzurum, Turkey
| | - Canan Karaca
- Department of Chemistry, Faculty of Science, Atatürk University, 25240 Erzurum, Turkey
| | - Peyman Gholami
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471 Tabriz, Iran
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28
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Naeimi H, Didar A. Efficient sonochemical green reaction of aldehyde, thiobarbituric acid and ammonium acetate using magnetically recyclable nanocatalyst in water. ULTRASONICS SONOCHEMISTRY 2017; 34:889-895. [PMID: 27773317 DOI: 10.1016/j.ultsonch.2016.07.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 07/25/2016] [Accepted: 07/26/2016] [Indexed: 06/06/2023]
Abstract
A facile one-pot and four-component economical synthesis of pyrido[2,3-d:6,5-d]dipyrimidines using aldehyde, 2-thiobarbituric acid and ammonium acetate in the presence of magnetically heterogeneous catalyst under ultrasonic irradiation in water is described. The present synthesis shows attractive characteristics such as; the use of magnetically recoverable and reusable catalyst, convenient one-pot operation, short reaction periods, high to excellent yields and the use of water as a green reaction medium, mild reaction conditions and is considered to be relatively environmentally benign.
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Affiliation(s)
- Hossein Naeimi
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, 87317, Iran.
| | - Asieh Didar
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, 87317, Iran
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29
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Khataee A, Saadi S, Vahid B. Kinetic modeling of sonocatalytic degradation of reactive orange 29 in the presence of lanthanide-doped ZnO nanoparticles. ULTRASONICS SONOCHEMISTRY 2017; 34:98-106. [PMID: 27773330 DOI: 10.1016/j.ultsonch.2016.05.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 05/13/2016] [Accepted: 05/14/2016] [Indexed: 06/06/2023]
Abstract
The sonocatalytic degradation of reactive orange 29 (RO29) was examined from the reaction kinetics point of view. Sonochemically synthesized lanthanides (Ho3+ and Er3+)-doped ZnO nanoparticles were utilized as catalyst during the sonocatalytic process. The prepared nanoparticles were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The aqueous RO29 solution was irradiated with a 36kHz ultrasonic bath (150W) for investigation of the degradation kinetics by varying of the initial dye concentration (10-30mg/L) and catalyst dosage (0.25-1g/L). A novel kinetic model was developed and validated for prediction of the RO29 sonocatalytic degradation efficiency using generally accepted intrinsic elementary reactions. The proposed kinetic model clearly demonstrates the dependence of the apparent first-order rate constant on the mentioned operational parameters. The predicted values of degradation efficiency and experimental results were in good agreement with appropriate correlation coefficient (R2>0.945).
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Affiliation(s)
- Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471 Tabriz, Iran.
| | - Shabnam Saadi
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471 Tabriz, Iran
| | - Behrouz Vahid
- Department of Chemical Engineering, Tabriz Branch, Islamic Azad University, 51579-44533 Tabriz, Iran
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30
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Zhang H, Wei C, Huang Y, Li G, Wu Q, Wang J, Song Y. Preparation of Er(3+):Y3Al5O12/KNbO3 composite and application in innocent treatment of ketamine by using sonocatalytic decomposition method. JOURNAL OF HAZARDOUS MATERIALS 2016; 317:667-676. [PMID: 27334305 DOI: 10.1016/j.jhazmat.2016.03.097] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 03/24/2016] [Accepted: 03/25/2016] [Indexed: 06/06/2023]
Abstract
A novel sonocatalyst, Er(3+):Y3Al5O12/KNbO3 composite, was synthesized, and then, characterized by X-ray diffractometer (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). In order to evaluate the sonocatalytic activity of prepared Er(3+):Y3Al5O12/KNbO3 composite, the sonocatalytic degradation of ketamine, a kind of narcotic drug, was studied. In addition, some influencing factors such as mass ratio, heat-treated temperature and heat-treated time on the sonocatalytic activity of prepared Er(3+):Y3Al5O12/KNbO3 powders and ultrasonic irradiation time on the sonocatalytic degradation of ketamine were examined by using GC-MS machine. The experimental results showed that the Er(3+):Y3Al5O12/KNbO3 composite is a good sonocatalyst in the field of ultrasonic chemistry and the sonocatalytic degradation was an effective method for the innocent treatment of ketamine.
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Affiliation(s)
- Hongbo Zhang
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| | - Chunsheng Wei
- College of Chemistry, Liaoning University, Shenyang 110036, PR China; National Police University of China, Shenyang 110854, PR China
| | - Yingying Huang
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| | - Guanshu Li
- College of Environment, Liaoning University, Shenyang 110036, PR China
| | - Qiong Wu
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
| | - Jun Wang
- College of Chemistry, Liaoning University, Shenyang 110036, PR China.
| | - Youtao Song
- College of Environment, Liaoning University, Shenyang 110036, PR China
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31
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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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Raval NP, Shah PU, Shah NK. Adsorptive amputation of hazardous azo dye Congo red from wastewater: a critical review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:14810-53. [PMID: 27255316 DOI: 10.1007/s11356-016-6970-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 05/24/2016] [Indexed: 05/27/2023]
Abstract
Increasing amount of dyes in an ecosystem has propelled the search of various methods for dye removal. Amongst all the methods, adsorption occupies a prominent place in dye removal. Keeping this in mind, many adsorbents used for the removal of hazardous anionic azo dye Congo red (CR) from aqueous medium were reviewed by the authors. The main objectives behind this review article are to assemble the information on scattered adsorbents and enlighten the wide range of potentially effective adsorbents for CR removal. Thus, CR sorption by various adsorbents such as activated carbon, non-conventional low-cost materials, nanomaterials, composites and nanocomposites are surveyed and critically reviewed as well as their sorption capacities are also compared. This review also explores the grey areas of the adsorption performance of various adsorbents with reference to the effects of pH, contact time, initial dye concentration and adsorbent dosage. The equilibrium adsorption isotherm, kinetic and thermodynamic data of different adsorbents used for CR removal were also analysed. It is evident from a literature survey of more than 290 published papers that nanoparticle and nanocomposite adsorbents have demonstrated outstanding adsorption capabilities for CR. Graphical abstract ᅟ.
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Affiliation(s)
- Nirav P Raval
- Department of Environmental Science, School of Sciences, Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Prapti U Shah
- Department of Environmental Science, School of Sciences, Gujarat University, Ahmedabad, Gujarat, 380009, India
| | - Nisha K Shah
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, Gujarat, 380009, India.
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Regulska E, Brus DM, Rodziewicz P, Sawicka S, Karpinska J. Photocatalytic degradation of hazardous Food Yellow 13 in TiO2 and ZnO aqueous and river water suspensions. Catal Today 2016. [DOI: 10.1016/j.cattod.2015.08.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Chakma S, Moholkar VS. Synthesis of bi-metallic oxides nanotubes for fast removal of dye using adsorption and sonocatalysis process. J IND ENG CHEM 2016. [DOI: 10.1016/j.jiec.2016.03.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Eskandarloo H, Badiei A, Behnajady MA, Tavakoli A, Ziarani GM. Ultrasonic-assisted synthesis of Ce doped cubic-hexagonal ZnTiO3 with highly efficient sonocatalytic activity. ULTRASONICS SONOCHEMISTRY 2016; 29:258-269. [PMID: 26585006 DOI: 10.1016/j.ultsonch.2015.10.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 08/20/2015] [Accepted: 10/05/2015] [Indexed: 06/05/2023]
Abstract
Ce doped ZnTiO3 as a novel catalyst with highly efficient and stable sonocatalytic activity was synthesized via an ultrasound-assisted sol-gel method using non-ionic surfactant Pluronic F127 as structure directing agent. Synthesized samples were characterized by using various techniques, such as XRD, TEM, SEM, EDX, XRF, BET, DRS, and PL, and their sonocatalytic activity studied toward degradation of p-Nitrophenol as a model organic compound. The synthesized mesoporous Ce/ZnTiO3 had mixed cubic-hexagonal phase with large surface area (118.2 m(2) g(-1)) and narrow pore size distribution (4.9 nm). The effects of cerium concentration, calcination temperature, and calcination time on the structure and the sonocatalytic activity of Ce/ZnTiO3 were studied in detail. XRD results were suggested that the relation between the phase structure and the catalytic activity is considerable. Significant decrease in band-gap and PL intensity was observed with increasing the cerium concentration in the ZnTiO3. It became clear that the Ce/ZnTiO3 (0.81 mol%) shows high sonocatalytic activity compared with pure ZnTiO3 and other Ce/ZnTiO3 samples as well as commercial TiO2-P25. The possible mechanism for the enhanced sonocatalytic activity of Ce/ZnTiO3 was discussed in details. The electrical energy consumption was also considered during sonocatalytic experiments.
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Affiliation(s)
- Hamed Eskandarloo
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Alireza Badiei
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran.
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Kamani H, Nasseri S, Khoobi M, Nabizadeh Nodehi R, Mahvi AH. Sonocatalytic degradation of humic acid by N-doped TiO2 nano-particle in aqueous solution. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE AND ENGINEERING 2016; 14:3. [PMID: 26819709 PMCID: PMC4729171 DOI: 10.1186/s40201-016-0242-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 01/10/2016] [Indexed: 12/07/2022]
Abstract
Background Un-doped and N-doped TiO2 nano-particles with different nitrogen contents were successfully synthesized by a simple sol–gel method, and were characterized by X-ray diffraction, field emission scanning electron microscopy, Energy dispersive X-ray analysis and UV–visible diffuse reflectance spectra techniques. Then enhancement of sonocatalytic degradation of humic acid by un-doped and N-doped TiO2 nano-particles in aqueous environment was investigated. The effects of various parameters such as initial concentration of humic acid, N-doping, and the degradation kinetics were investigated. Results The results of characterization techniques affirmed that the synthesis of un-doped and N-doped TiO2 nano-particles was successful. Degradation of humic acid by using different nano-particles obeyed the first-order kinetic. Among various nano-particles, N-doped TiO2 with molar doping ratio of 6 % and band gap of 2.92 eV, exhibited the highest sonocatalytic degradation with an apparent-first-order rate constant of 1.56 × 10-2 min−1. Conclusions The high degradation rate was associated with the lower band gap energy and well-formed anatase phase. The addition of nano-catalysts could enhance the degradation efficiency of humic acid as well as N-doped TiO2 with a molar ratio of 6 %N/Ti was found the best nano-catalyst among the investigated catalysts. The sonocatalytic degradation with nitrogen doped semiconductors could be a suitable oxidation process for removal of refractory pollutants such as humic acid from aqueous solution. Electronic supplementary material The online version of this article (doi:10.1186/s40201-016-0242-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hossein Kamani
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Simin Nasseri
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran ; Center for Water Quality Research, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Khoobi
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ramin Nabizadeh Nodehi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Hossein Mahvi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran ; Center for Solid Waste Research, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran ; National Institute of Health Research, Tehran University of Medical Sciences, Tehran, Iran
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Yuan R, Zhou B, Zhang X, Guan H. Photocatalytic degradation of humic acids using substrate-supported Fe³⁺-doped TiO₂ nanotubes under UV/O₃ for water purification. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:17955-17964. [PMID: 26165990 DOI: 10.1007/s11356-015-4910-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 06/16/2015] [Indexed: 06/04/2023]
Abstract
In this paper, Fe(3+)-doped TiO2 nanotubes (Fe-TNTs) were successfully synthesized using hydrothermal method. Four different types of substrates, more specifically, ceramsite, zeolite, activated alumina, and activated carbon (AC), have been investigated in the study. The substrate-supported Fe-TNTs were used to effectively decompose humic acids (HAs) in water under O3/UV conditions. The experiment results show that the highest photocatalytic activity was obtained in the presence of AC-supported 1.0 atomic percent (at.%) Fe-TNTs calcined at 500 °C, as HAs was removed by 97.4%, with a pseudo-first-order rate constant of 0.126/min. The removal efficiencies of HAs reduced when the catalysts was repeatedly used, since the amount of adsorption sites of the supporting substrates decreased. However, even after the catalyst was repeatedly used for five times, the removal efficiency of HAs in the presence of AC-supported catalyst, which was 78.5%, was still sufficient in water treatment. The enhanced photocatalytic activity of AC-supported Fe-TNTs was related to a synergistic effect of AC adsorption and Fe-TNT photocatalytic ozonation.
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Affiliation(s)
- Rongfang Yuan
- Department of Environmental Engineering, School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Beihai Zhou
- Department of Environmental Engineering, School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China.
| | - Xuemin Zhang
- Department of Environmental Engineering, School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Huanhuan Guan
- Department of Environmental Engineering, School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
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Eskandarloo H, Badiei A, Behnajady MA, Ziarani GM. Ultrasonic-assisted sol-gel synthesis of samarium, cerium co-doped TiO2 nanoparticles with enhanced sonocatalytic efficiency. ULTRASONICS SONOCHEMISTRY 2015; 26:281-292. [PMID: 25682738 DOI: 10.1016/j.ultsonch.2015.02.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2014] [Revised: 12/23/2014] [Accepted: 02/02/2015] [Indexed: 06/04/2023]
Abstract
In this work, pure TiO2 and samarium, cerium mono-doped and co-doped TiO2 catalysts were synthesized by an ultrasonic-assisted sol-gel method and their sonocatalytic efficiency studied toward removal of Methyl Orange as a model organic pollutant from the textile industry. The relationship of structure and sonocatalytic performance of catalysts was established by using various techniques, such as XRD, TEM, SEM, EDX, DRS, and PL. A comparison on the removal efficiency of sonolysis alone and sonocatalytic processes was performed. The results showed that the samarium, cerium co-doped TiO2 catalyst with narrower band gap energy and smaller particle size leads to a rapid removal of pollutant. It was believed that Sm(3+) and Ce(4+) ions can serve as superficial trapping for electrons at conduction band of TiO2 and prolonged the lifetime of electron-hole pairs. Finally, the effect of synthesis and operational variables on the sonocatalytic activity of co-doped TiO2 catalyst was studied and optimized using response surface methodology as a statistical technique. The results showed that the maximum removal efficiency (96.33%) was achieved at the optimum conditions: samarium content of 0.6 wt%, cerium content of 0.82 wt%, initial pollutant concentration of 4.31 mg L(-1), catalyst dosage of 0.84 mg L(-1), ultrasonic irradiation power of 700 W, and irradiation time of 50 min.
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Affiliation(s)
- Hamed Eskandarloo
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Alireza Badiei
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran.
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39
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40
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Wang Y, Gai L, Ma W, Jiang H, Peng X, Zhao L. Ultrasound-Assisted Catalytic Degradation of Methyl Orange with Fe3O4/Polyaniline in Near Neutral Solution. Ind Eng Chem Res 2015. [DOI: 10.1021/ie504242k] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Yang Wang
- Key Laboratory of Fine Chemicals in Universities of Shandong, School of Chemistry & Pharmaceutical Engineering, Qilu University of Technology, Jinan 250353, People’s Republic of China
| | - Ligang Gai
- Key Laboratory of Fine Chemicals in Universities of Shandong, School of Chemistry & Pharmaceutical Engineering, Qilu University of Technology, Jinan 250353, People’s Republic of China
| | - Wanyong Ma
- Key Laboratory of Fine Chemicals in Universities of Shandong, School of Chemistry & Pharmaceutical Engineering, Qilu University of Technology, Jinan 250353, People’s Republic of China
| | - Haihui Jiang
- Key Laboratory of Fine Chemicals in Universities of Shandong, School of Chemistry & Pharmaceutical Engineering, Qilu University of Technology, Jinan 250353, People’s Republic of China
| | - Xiangqian Peng
- Key Laboratory of Fine Chemicals in Universities of Shandong, School of Chemistry & Pharmaceutical Engineering, Qilu University of Technology, Jinan 250353, People’s Republic of China
| | - Lichun Zhao
- Key Laboratory of Fine Chemicals in Universities of Shandong, School of Chemistry & Pharmaceutical Engineering, Qilu University of Technology, Jinan 250353, People’s Republic of China
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Khataee A, Sheydaei M, Hassani A, Taseidifar M, Karaca S. Sonocatalytic removal of an organic dye using TiO2/Montmorillonite nanocomposite. ULTRASONICS SONOCHEMISTRY 2015; 22:404-411. [PMID: 25060118 DOI: 10.1016/j.ultsonch.2014.07.002] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2014] [Revised: 07/01/2014] [Accepted: 07/02/2014] [Indexed: 06/03/2023]
Abstract
The sonocatalytic performance of the synthesized TiO2/Montmorillonite K10 (TiO2/MMT) nanocomposite was studied in removal of Basic Blue 3 (BB3) from water. The TiO2/MMT nanocomposite was prepared by hydrothermal method. Scanning electron microscope, X-ray diffraction and Fourier transform infrared were used to characterize the synthesized nanocomposite. The average size of TiO2 nanoparticles decreased from 60-80nm to 40-60nm through the immobilization of this semiconductor on the surface of MMT. The obtained results indicated that the sonocatalytic activity of TiO2/MMT nanocomposite was higher than that of pure TiO2 nanoparticles and MMT particles. Furthermore, the main influence factors on the sonocatalytic activity such as the BB3 concentration, pH of solution, TiO2/MMT dose, power of ultrasonic generator, and inorganic salts were studied. The intermediates of BB3 degradation during the sonocatalytic process in the presence of the TiO2/MMT nanocomposite have been monitored by gas chromatography-mass spectrometry.
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Affiliation(s)
- Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-14766 Tabriz, Iran.
| | - Mohsen Sheydaei
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-14766 Tabriz, Iran
| | - Aydin Hassani
- Department of Chemistry, Faculty of Science, Atatürk University, 25240 Erzurum, Turkey; Photochemical Nanosciences Laboratory, Department of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Mojtaba Taseidifar
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-14766 Tabriz, Iran
| | - Semra Karaca
- Department of Chemistry, Faculty of Science, Atatürk University, 25240 Erzurum, Turkey.
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Song L, Li Y, He P, Zhang S, Wu X, Fang S, Shan J, Sun D. Synthesis and sonocatalytic property of rod-shape Sr(OH)2·8H2O. ULTRASONICS SONOCHEMISTRY 2014; 21:1318-1324. [PMID: 24486080 DOI: 10.1016/j.ultsonch.2014.01.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Revised: 12/28/2013] [Accepted: 01/06/2014] [Indexed: 06/03/2023]
Abstract
A novel rod-shape sonocatalyst Sr(OH)2·8H2O was prepared by a facile precipitation method, and characterized by X-ray powder diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy and UV-vis absorption spectroscopy. Comparative sonocatalytic degradation experiments were carried out in different conditions under ultrasonic irradiation by using rhodamine B (RhB) as the model substrate, indicating that Sr(OH)2·8H2O was highly sonocatalytic. Total organic carbon experiment demonstrated Sr(OH)2·8H2O with mass mineralization of organic carbon. The effects of catalyst amount, initial RhB concentration and ultrasonic energy of degradation were investigated, and the sonocatalyst could be reused 5 times without significant loss of activity. Furthermore, the potent degrading capability was ascribed to ultrasonic cavitation producing flash light/energy which generated radicals (e.g., OH) with high oxidation activity.
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Affiliation(s)
- Limin Song
- College of Environment and Chemical Engineering, State Key Laboratory of Hollow-Fiber Membrane Materials and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, PR China.
| | - Yamiao Li
- College of Environment and Chemical Engineering, State Key Laboratory of Hollow-Fiber Membrane Materials and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, PR China
| | - Peizhi He
- College of Environment and Chemical Engineering, State Key Laboratory of Hollow-Fiber Membrane Materials and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, PR China
| | - Shujuan Zhang
- College of Science, Tianjin University of Science & Technology, Tianjin 300457, PR China
| | - Xiaoqing Wu
- Institute of Composite Materials, Ministry of Education Key Laboratory of Advanced Textile Composite Materials, Tianjin Polytechnic University, Tianjin 300387, PR China.
| | - Sheng Fang
- College of Environment and Chemical Engineering, State Key Laboratory of Hollow-Fiber Membrane Materials and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, PR China
| | - Juanjuan Shan
- College of Environment and Chemical Engineering, State Key Laboratory of Hollow-Fiber Membrane Materials and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, PR China
| | - Donglan Sun
- College of Environment and Chemical Engineering, State Key Laboratory of Hollow-Fiber Membrane Materials and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, PR China
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Naeimi H, Nazifi ZS. A facile one-pot ultrasound assisted synthesis of 1,8-dioxo-octahydroxanthene derivatives catalyzed by Brønsted acidic ionic liquid (BAIL) under green conditions. J IND ENG CHEM 2014. [DOI: 10.1016/j.jiec.2013.06.041] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Yuan R, Zhou B, Hua D, Shi C. Enhanced photocatalytic degradation of humic acids using Al and Fe co-doped TiO2 nanotubes under UV/ozonation for drinking water purification. JOURNAL OF HAZARDOUS MATERIALS 2013; 262:527-538. [PMID: 24095992 DOI: 10.1016/j.jhazmat.2013.09.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 08/29/2013] [Accepted: 09/07/2013] [Indexed: 06/02/2023]
Abstract
O3/UV/TiO2 was used to effectively decompose humic acids (HAs) in drinking water. To obtain a large specific surface area and low band gap energy, Al and Fe co-doped TiO2 nanotubes were successfully synthesized using the hydrothermal method. The effect of the optimal co-doped TiO2 nanotubes catalyst on the HAs removal efficiency through O3/UV/co-doped TiO2 process was investigated. The highest HAs removal efficiency (79.4%) that exhibited a pseudo-first-order rate constant of 0.172 min(-1) was achieved, in the presence of 550 °C calcined 1.0% co-doped TiO2 nanotubes with an Al:Fe ratio of 0.25:0.75. The effects of calcination temperature and doping concentration on anatase phase weight fractions, average crystallite sizes, Brunauer-Emmett-Teller surface area, catalyst band gap energy, and catalyst photocatalytic activity were also discussed. The inorganic anions also affected the catalyst photocatalytic ability. In a neutral solution, SO4(2-) slightly promoted HAs removal. However, HCO3(-) was found to significantly inhibit the catalyst activity, whereas Cl(-) had negligible effect on photocatalytic ability.
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Affiliation(s)
- Rongfang Yuan
- Key Laboratory of Educational Ministry for High Efficient Mining and Safety in Metal Mine, University of Science and Technology Beijing, Beijing 100083, China; Department of Environmental Engineering, School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
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Mageshwari K, Mali SS, Sathyamoorthy R, Patil PS. Template-free synthesis of MgO nanoparticles for effective photocatalytic applications. POWDER TECHNOL 2013. [DOI: 10.1016/j.powtec.2013.09.016] [Citation(s) in RCA: 134] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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46
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Treatment of organic pollutants in water using TiO2 powders: photocatalysis versus sonocatalysis. REACTION KINETICS MECHANISMS AND CATALYSIS 2013. [DOI: 10.1007/s11144-013-0562-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Ghows N, Entezari MH. Kinetic investigation on sono-degradation of Reactive Black 5 with core-shell nanocrystal. ULTRASONICS SONOCHEMISTRY 2013; 20:386-394. [PMID: 22818362 DOI: 10.1016/j.ultsonch.2012.06.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Revised: 06/14/2012] [Accepted: 06/19/2012] [Indexed: 06/01/2023]
Abstract
The experimental data of sonocatalytic degradation of Reactive Black 5 (RB5) as an azo dye by core-shell nanocrystals (CdS-TiO(2)) were applied to the proper kinetic models. In this work, two kinetic models were proposed and fitted properly to the data. In the first one, the heterogeneous reaction was considered similar to the Langmuir-Hinshelwood (L-H) mechanism and the kinetic rate parameters were determined. In this model, short time of sonication with initial concentration changes has been applied and the contribution of the reaction intermediates has been neglected in degradation. Hence, this model may not be valid for longer reaction times where the reaction intermediates effects prevail. In the second one, two first-order reactions in series provided the most convincing rate form for the sonodegradation of dyes adsorbed on the synthesized nanocomposite. In these series reactions, the first step is the conversion of colored dye to colored intermediate, and the second step is the conversion to colorless product(s). The obtained results were in good agreement with the proposed kinetic models. The rate constants of degradation of catalyzed reaction were higher than that obtained without catalyst, solar and UV irradiation.
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Affiliation(s)
- N Ghows
- Department of Chemistry, Ferdowsi University of Mashhad, 91775 Mashhad, Iran
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