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Ahmed MA, Mohamed AA. Advances in ultrasound-assisted synthesis of photocatalysts and sonophotocatalytic processes: A review. iScience 2024; 27:108583. [PMID: 38226158 PMCID: PMC10788205 DOI: 10.1016/j.isci.2023.108583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024] Open
Abstract
Water pollution and the global energy crisis are two significant challenges that the world is facing today. Ultrasound-assisted synthesis offers a simple, versatile, and green synthetic tool for nanostructured materials that are often unavailable by traditional synthesis. Furthermore, the integration of ultrasound and photocatalysis has recently received considerable interest due to its potential for environmental remediation as a low-cost, efficient, and environmentally friendly technique. The underlying principles and mechanisms of sonophotocatalysis, including enhanced mass transfer, improved catalyst-pollutant interaction, and reactive species production have been discussed. Various organic pollutants as dyes, pharmaceuticals, pesticides, and emerging organic pollutants are targeted based on their improved sonophotocatalytic degradation efficiency. Additionally, the important factors affecting sonophotocatalytic processes and the advantages and challenges associated with these processes are discussed. Overall, this review provides a comprehensive understanding of sono-assisted synthesis and photocatalytic degradation of organic pollutants and prospects for progress in this field.
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Affiliation(s)
- Mahmoud A. Ahmed
- Chemistry Department, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
| | - Ashraf A. Mohamed
- Chemistry Department, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
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Liu Y, Li D, Chen M, Sun Q, Zhang Y, Zhou J, Wang T. Radical adducts formation mechanism of CH 3CO 2∙ and CH 3CO 3∙ realized decomposition of chitosan by plasma catalyzed peracetic acid. Carbohydr Polym 2023; 318:121121. [PMID: 37479454 DOI: 10.1016/j.carbpol.2023.121121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 06/01/2023] [Accepted: 06/11/2023] [Indexed: 07/23/2023]
Abstract
High-molecular-weight chitosan has limited applications due to unsatisfactory solubility and hydrophilicity. Discharge plasma coupled with peracetic acid (PAA) oxidation ("plasma+PAA") realized fast depolymerization of high-molecular-weight chitosan in this study. The molecular weight of chitosan rapidly declined to 81.1 kDa from initial 682.5 kDa within 60 s of "plasma+PAA" treatment, and its reaction rate constant was 12-fold higher than single plasma oxidation. Compared with 1O2, ∙CH3, CH3O2·, and O2∙-, CH3CO2∙ and CH3CO3∙ played decisive roles in the chitosan depolymerization in the plasma+PAA system through mechanisms of radical adduct formation. The attacks of CH3CO2∙ and CH3CO3∙ destroyed the β-(1,4) glycosidic bonds and hydrogen bonds of chitosan, leading to generation of low-molecular-weight chitosan; the main chain structure of chitosan was not changed during the depolymerization process. Furthermore, the generated low-molecular-weight chitosan exhibited greater antioxidant activities than original chitosan. Overall, this study revealed the radical adduct formation mechanisms of CH3CO2∙ and CH3CO3∙ for chitosan decomposition, providing an alternative for fast depolymerization of high-molecular-weight chitosan.
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Affiliation(s)
- Yue Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, PR China
| | - Dongrui Li
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, PR China
| | - Mengna Chen
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, PR China
| | - Qingyuan Sun
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, PR China
| | - Ying Zhang
- College of Information Science and Technology, Nanjing Forestry University, Nanjing 210037, PR China
| | - Jian Zhou
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, PR China
| | - Tiecheng Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, PR China.
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Mapukata S, Ntsendwana B, Mokhena T, Sikhwivhilu L. Advances on sonophotocatalysis as a water and wastewater treatment technique: efficiency, challenges and process optimisation. Front Chem 2023; 11:1252191. [PMID: 37681207 PMCID: PMC10482105 DOI: 10.3389/fchem.2023.1252191] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 08/11/2023] [Indexed: 09/09/2023] Open
Abstract
Due to water shortage and increased water pollution, various methods are being explored to improve water quality by treating contaminants. Sonophotocatalysis is a combination of two individual water treatment processes i.e., photocatalysis and sonocatalysis. With advantages including shorter reaction times and enhanced activity, this technique shows possible futuristic applications as an efficient water treatment technology. Herein, background insight on sonophotocalysis as a water and wastewater treatment technique as well as the general mechanism of activity is explained. The commonly used catalysts for sonophotocatalytic applications as well as their synthesis pathways are also briefly discussed. Additionally, the utilisation of sonophotocatalysis for the disinfection of various microbial species as well as treatment of wastewater pollutants including organic (dyes, pharmaceuticals and pesticides) and inorganic species (heavy metals) is deliberated. This review also gives a critical analysis of the efficiency, enhancement strategies as well as challenges and outlooks in this field. It is thus intended to give insight to researchers in the context of facilitating future developments in the field of water treatment, and advancing sonophotocatalysis towards large-scale implementation and commercialization.
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Affiliation(s)
- Sivuyisiwe Mapukata
- Nanotechnology Innovation Centre (NIC), Advanced Materials Division, Mintek, Johannesburg, South Africa
| | - Bulelwa Ntsendwana
- Nanotechnology Innovation Centre (NIC), Advanced Materials Division, Mintek, Johannesburg, South Africa
| | - Teboho Mokhena
- Nanotechnology Innovation Centre (NIC), Advanced Materials Division, Mintek, Johannesburg, South Africa
| | - Lucky Sikhwivhilu
- Nanotechnology Innovation Centre (NIC), Advanced Materials Division, Mintek, Johannesburg, South Africa
- Department of Chemistry, Faculty of Science, Engineering and Agriculture, University of Venda, Thohoyandou, South Africa
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Terki M, Triaa S, Ali FK, Youcef R, Brahim IO, Trari M. Sono-assisted degradation of rhodamine B using the Fe modified MgO nanostructures: characterization and catalytic activity. REACTION KINETICS MECHANISMS AND CATALYSIS 2023. [DOI: 10.1007/s11144-023-02388-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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A Comparative Study of Pectin Green Extraction Methods from Apple Waste: Characterization and Functional Properties. INTERNATIONAL JOURNAL OF FOOD SCIENCE 2022; 2022:2865921. [PMID: 36578434 PMCID: PMC9792233 DOI: 10.1155/2022/2865921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 11/09/2022] [Accepted: 11/26/2022] [Indexed: 12/24/2022]
Abstract
Traditional methods of pectin extraction led to drop quality, yield, functional properties, and excessive time. The objective of our research is to produce high-quality pectin from apple pomace as food processing by-product. Four nonconventional methods of extraction (microwave, ultrasound, citric acid, and organic acid mixture (citric acid, ascorbic acid, and acetic acid)) were compared to conventional extraction of pectin in terms of yields, thermal behavior, functional groups, antioxidant activity, and functional properties. Citric acid extraction method gave the highest yield (22%) compared to other methods. The extraction of pectin by organic acid mixture maximized the galacturonic acid index to 87.58%;. Also, it was changed from structural into: compacted, multilaminated, and flaky surface compared to the other samples (more porous and hollow opening structural) as well as increased stability of pectin particles in colloids as a result of increasing the charge on particles to -59.42, beside its higher thermal stability of pectin behaviors, which reflected on improving all functional properties compared to the other methods. On the other side, microwave-extracted pectin had the highest antioxidant activity (3-4 times) compared to other extraction methods. In conclusion, extraction using organic acids, microwave, and ultrasonic led to improve the pectin quality and could be used in high-temperature food products, like bakery products.
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Efficient sonophotocatalytic degradation of acid blue 113 dye using a hybrid nanocomposite of CoFe2O4 nanoparticles loaded on multi-walled carbon nanotubes. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113617] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Zhang L, Zhang J, Sun H, Xia W, He J, Han J. Enhanced photocatalytic performance of carbon fiber paper supported TiO 2 under the ultrasonic synergy effect. RSC Adv 2022; 12:22922-22930. [PMID: 36105960 PMCID: PMC9377210 DOI: 10.1039/d2ra04240a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 08/05/2022] [Indexed: 11/25/2022] Open
Abstract
In the present work, TiO2 rutile nanorods and anatase nanoflakes have been grown on carbon fiber paper (CFP) by the hydrothermal method. Their photoelectrochemical properties and photocatalytic performances have been investigated. The introduction of CFP is found to improve visible light absorption intensity and effective surface areas apparently, and also make TiO2 photocatalysts easier to recycle from aqueous waste. An ultrasonic field was employed during the process of photocatalysis. Sono-photocatalytic efficiency is found to be enhanced significantly in comparison with those of photocatalysis and sonocatalysis, which indicates a positive ultrasonic synergy effect. The scavenger experiments reveal that superoxide radicals (˙O2−) and hydroxyl (˙OH) are the predominant active species during the dye degradation sono-photocatalytic process assisted by CFP-supported TiO2 catalysts. To investigate the ultrasonic synergy photocatalytic effect, the generated amount of reactive oxygen species (ROS) was detected and quantitatively evaluated under visible light, ultrasound, and the combined condition of visible light and ultrasound. As a result, the present work provides an efficient way to improve photocatalytic performance and to realize easy recovery of photocatalyst, which will be helpful for better design of advanced photocatalysts for practical applications. SEM images of TiO2(R) nanorods and TiO2(A) nanoflakes grown on CFP. And the corresponding catalytic performances under solely visible light, solely ultrasonic field, and the combined conditions of visible light and ultrasonic field.![]()
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Affiliation(s)
- Lei Zhang
- School of Physics Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China
| | - Jiahui Zhang
- School of Physics Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China
| | - Hui Sun
- School of Physics Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing, 210093, P. R. China
| | - Weiwei Xia
- School of Physics Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China
| | - Junhui He
- School of Physics Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China
| | - Jie Han
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, P. R. China
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Li Z, Zhuang T, Dong J, Wang L, Xia J, Wang H, Cui X, Wang Z. Sonochemical fabrication of inorganic nanoparticles for applications in catalysis. ULTRASONICS SONOCHEMISTRY 2021; 71:105384. [PMID: 33221623 PMCID: PMC7786602 DOI: 10.1016/j.ultsonch.2020.105384] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/21/2020] [Accepted: 10/27/2020] [Indexed: 05/04/2023]
Abstract
Catalysis covers almost all the chemical reactions or processes aiming for many applications. Sonochemistry has emerged in designing and developing the synthesis of nano-structured materials, and the latest progress mainly focuses on the synthetic strategies, product properties as well as catalytic applications. This current review simply presents the sonochemical effects under ultrasound irradiation, roughly describes the ultrasound-synthesized inorganic nano-materials, and highlights the sonochemistry applications in the inorganics-based catalysis processes including reduction, oxidation, degradation, polymerization, etc. Or all in all, the review hopes to provide an integrated understanding of sonochemistry, emphasize the great significance of ultrasound-assisted synthesis in structured materials as a unique strategy, and broaden the updated applications of ultrasound irradiation in the catalysis fields.
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Affiliation(s)
- Zhanfeng Li
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center, Qingdao University, 266071 Qingdao, China
| | - Tingting Zhuang
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center, Qingdao University, 266071 Qingdao, China
| | - Jun Dong
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center, Qingdao University, 266071 Qingdao, China
| | - Lun Wang
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center, Qingdao University, 266071 Qingdao, China
| | - Jianfei Xia
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center, Qingdao University, 266071 Qingdao, China
| | - Huiqi Wang
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center, Qingdao University, 266071 Qingdao, China
| | - Xuejun Cui
- College of Chemistry, Jilin University, 130012 Changchun, China
| | - Zonghua Wang
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center, Qingdao University, 266071 Qingdao, China.
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How Photocatalyst Dosage and Ultrasound Application Influence the Photocatalytic Degradation Rate of Phenol in Water: Elucidating the Mechanisms Behind. WATER 2020. [DOI: 10.3390/w12061672] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Photocatalysis is of high interest for the treatment of wastewater containing non-biodegradable organic components. In this work, the photocatalytic degradation of phenol by TiO2 photocatalysis was assessed, the influence of ultrasound (US) treatment was evaluated, and the mechanisms behind it were elucidated. It was shown that the TiO2 concentration (in suspension) has a large influence on the degradation kinetics. At high TiO2 concentrations, a reduced efficiency was observed due to the shielding of the UV light by TiO2 particles. US treatment effectively increased phenol degradation by improving the mass transfer while it was shown by the experimental data that particle deagglomeration did not play a significant role. The degradation mainly occurred through indirect phenol oxidation by hydroxyl (OH*) radicals, which were formed in situ at the surface of the photocatalyst. Finally, based on the partial least squares (PLS) methodology, a mathematical model was developed, representing phenol degradation as a function of the selected process conditions.
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Systematic activation of potassium peroxydisulfate with ZIF-8 via sono-assisted catalytic process: Mechanism and ecotoxicological analysis. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113018] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Gogate PR. Improvements in Catalyst Synthesis and Photocatalytic Oxidation Processing Based on the Use of Ultrasound. Top Curr Chem (Cham) 2020; 378:29. [PMID: 32125542 DOI: 10.1007/s41061-020-0293-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 02/18/2020] [Indexed: 10/24/2022]
Abstract
The efficacy of photocatalysis strongly depends on the activity of the catalysts and the operational factors, especially factors associated with mass transfer and the possibility of catalyst deactivation. The use of ultrasound has great potential to enhance catalyst activity, during both the synthesis and actual oxidation processes due to the cavitational effects of turbulence and liquid streaming. This article presents an overview of the application aspects of ultrasound, both in the synthesis of the photocatalyst and applications for wastewater treatment. A review of the literature revealed that the use of ultrasound in the synthesis processes can result in a catalyst with a lower mean size and higher surface area as well as uniform size distribution. The application of ultrasound in the actual photocatalytic oxidation facilitates enhancement of the oxidation capacity, leading to higher degradation rates, sometimes synergistic results and definitely lower treatment times. This article also presents guidelines for the selection of the best operating conditions for the use of ultrasound in photocatalytic systems and includes a discussion on the possible reactor configurations suitable for large-scale operations. Overall, a combination of ultrasound with photocatalytic oxidation or the optimized application of ultrasound in catalyst synthesis can yield significant benefits.
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Affiliation(s)
- Parag R Gogate
- Chemical Engineering Department, Institute of Chemical Technology, Matunga, Mumbai, 40019, India.
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12
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Sisi AJ, Khataee A, Fathinia M, Vahid B. Ultrasonic-assisted degradation of a triarylmethane dye using combined peroxydisulfate and MOF-2 catalyst: Synergistic effect and role of oxidative species. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.111838] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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13
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Ultrasound-assisted catalyst-free phenol-yne reaction for the synthesis of new water-soluble chitosan derivatives and their nanoparticles with enhanced antibacterial properties. Int J Biol Macromol 2019; 139:103-113. [DOI: 10.1016/j.ijbiomac.2019.07.203] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 07/24/2019] [Accepted: 07/29/2019] [Indexed: 01/10/2023]
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Lu Y, Jing H, Yu H, Zhao Y, Li Y, Huo M, Zhu S, Crittenden JC. Enhanced catalytic performance of BiVO4/Pt under the combination of visible-light illumination and ultrasound waves. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.05.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Sunasee S, Leong KH, Wong KT, Lee G, Pichiah S, Nah I, Jeon BH, Yoon Y, Jang M. Sonophotocatalytic degradation of bisphenol A and its intermediates with graphitic carbon nitride. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:1082-1093. [PMID: 28290089 DOI: 10.1007/s11356-017-8729-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 02/28/2017] [Indexed: 06/06/2023]
Abstract
Since bisphenol A (BPA) exhibits endocrine disrupting action and high toxicity in aqueous system, there are high demands to remove it completely. In this study, the BPA removal by sonophotocatalysis coupled with nano-structured graphitic carbon nitride (g-C3N4, GCN) was conducted with various batch tests using energy-based advanced oxidation process (AOP) based on ultrasound (US) and visible light (Vis-L). Results of batch tests indicated that GCN-based sonophotocatalysis (Vis-L/US) had higher rate constants than other AOPs and especially two times higher degradation rate than TiO2-based Vis-L/US. This result infers that GCN is effective in the catalytic activity in Vis-L/US since its surface can be activated by Vis-L to transport electrons from valence band (VB) for utilizing holes (h+VB) in the removal of BPA. In addition, US irradiation exfoliated the GCN effectively. The formation of BPA intermediates was investigated in detail by using high-performance liquid chromatography-mass spectrometry (HPLC/MS). The possible degradation pathway of BPA was proposed.
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Affiliation(s)
- Sharmini Sunasee
- Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Kah Hon Leong
- Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, 31900, Kampar, Perak, Malaysia
| | - Kien Tiek Wong
- Department of Environmental Engineering, Kwangwoon University, 20 Kwangwoon-Ro, Nowon-Gu, Seoul, 01897, Republic of Korea
| | - Gooyong Lee
- Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Saravanan Pichiah
- Department of Environmental Science & Engineering, Indian Institute of Technology (ISM) Dhanbad, Dhanbad, Jharkhand, -826004, India
| | - InWook Nah
- Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul, 136-791, Republic of Korea
| | - Byong-Hun Jeon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Yeomin Yoon
- Department of Civil and Environmental Engineering, University of South Carolina, Columbia, SC, 29208, USA
| | - Min Jang
- Department of Environmental Engineering, Kwangwoon University, 20 Kwangwoon-Ro, Nowon-Gu, Seoul, 01897, Republic of Korea.
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Optimization of sonophotocatalytic decolorization of Begazol Black B by loaded, double-sided nanophotocatalysts on porous substrate: A central composite design approach. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2018.06.034] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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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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Ziylan-Yavaş A, Ince NH. Catalytic ozonation of paracetamol using commercial and Pt-supported nanocomposites of Al 2O 3: The impact of ultrasound. ULTRASONICS SONOCHEMISTRY 2018; 40:175-182. [PMID: 28237269 DOI: 10.1016/j.ultsonch.2017.02.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 01/30/2017] [Accepted: 02/13/2017] [Indexed: 06/06/2023]
Abstract
The study is the assessment of commercial γ-Al2O3 and its sonolytically modified nanocomposite in catalytic ozonation of paracetamol (PCT), which is an emerging water contaminant and a highly reactive compound with ozone. The results showed that commercial alumina was ineffective regardless of the solution pH, due to the low affinity of the catalyst surface for PCT and the high reactivity of the solute with molecular ozone. The modified catalyst, which was synthesized by decoration of the original surface with nanoparticles of platinum provided considerable improvement in the performance of the catalyst, particularly in mineralization of the target compound. The presence of OH scavenging agents in solution markedly retarded the rate of PCT oxidation and organic carbon decay, to signal the importance of radical-mediated reaction mechanisms on the degradation of the compound. Finally, the attempt to accelerate the reactions by running them in the presence of ultrasound was found inadequate for the early oxidation, but highly adequate for the longer mineralization process. The failure was attributed to the diffusion of a large fraction of ozone into the gaseous cavity bubbles (reduced probability of direct reactions) and the extreme conditions of cavitation collapse that partially damaged the catalyst surface. The success (in mineralization) was explained by the shift of the reaction site from the bulk solution (poor adsorption on catalyst surfaces) to the solid surface and the gaseous cavity bubbles (via enhanced hydrophobicity), both being considerably more active reaction media.
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Affiliation(s)
- Asu Ziylan-Yavaş
- Institute of Environmental Sciences, Boğaziçi University, 34342 Bebek, Turkey
| | - Nilsun H Ince
- Institute of Environmental Sciences, Boğaziçi University, 34342 Bebek, Turkey.
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Sunasee S, Wong KT, Lee G, Pichiah S, Ibrahim S, Park C, Kim NC, Yoon Y, Jang M. Titanium dioxide-based sonophotocatalytic mineralization of bisphenol A and its intermediates. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:15488-15499. [PMID: 28512708 DOI: 10.1007/s11356-017-9124-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 04/26/2017] [Indexed: 06/07/2023]
Abstract
In this study, bisphenol A (BPA) removal by sonophotocatalysis coupled with commercially available titanium dioxide (TiO2, P25) was assessed in batch tests using energy-based advanced oxidation combining ultrasound (US) and ultraviolet (UV). The kinetics of BPA removal were systematically evaluated by changing operational parameters, such as US frequency and power, mechanical stirring speed, and temperature, but also comparison of single and coupled systems under the optimum US conditions (35 kHz, 50 W, 300 rpm stirring speed, and 20 °C). The combination of US/UV/P25 exhibited the highest BPA removal rate (28.0 × 10-3 min-1). In terms of the synergy index, the synergistic effect of sonophotocatalysis was found to be 2.2. This indicated that sonophotocatalysis has a considerably higher removal efficiency than sonocatalysis or photocatalysis. The removal of BPA was further investigated to identify BPA byproducts and intermediates using high-performance liquid chromatography-mass spectrometry. Five main intermediates were formed during sonophotocatalytic degradation, and complete removal of BPA and its intermediates was obtained after 3 h of operation. The degradation pathway of BPA by sonophotocatalysis was also elucidated.
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Affiliation(s)
- Sharmini Sunasee
- Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Kien Tiek Wong
- Department of Environmental Engineering, Kwangwoon University, 20 Kwangwoon-Ro, Nowon-Gu, Seoul, 01897, Republic of Korea
| | - Gooyong Lee
- Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Saravanan Pichiah
- Department of Environmental Science and Engineering, Indian School of Mines, Sardar Patel Nagar, Dhanbad, Jharkhand, 826004, India
| | - Shaliza Ibrahim
- Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Chulhwan Park
- Department of Environmental Engineering, Kwangwoon University, 20 Kwangwoon-Ro, Nowon-Gu, Seoul, 01897, Republic of Korea
| | - Nam Chan Kim
- Department of Environmental Engineering, Kwangwoon University, 20 Kwangwoon-Ro, Nowon-Gu, Seoul, 01897, Republic of Korea
| | - Yeomin Yoon
- Department of Civil and Environmental Engineering, University of South Carolina, Columbia, SC, 29208, USA
| | - Min Jang
- Department of Environmental Engineering, Kwangwoon University, 20 Kwangwoon-Ro, Nowon-Gu, Seoul, 01897, Republic of Korea.
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21
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Chatel G, Valange S, Behling R, Colmenares JC. A Combined Approach using Sonochemistry and Photocatalysis: How to Apply Sonophotocatalysis for Biomass Conversion? ChemCatChem 2017. [DOI: 10.1002/cctc.201700297] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Sabine Valange
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP); Université de Poitiers, CNRS, ENSIP, B1; 1 rue Marcel Doré 86073 Poitiers Cedex 9 France
| | - Ronan Behling
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP); Université de Poitiers, CNRS, ENSIP, B1; 1 rue Marcel Doré 86073 Poitiers Cedex 9 France
| | - Juan Carlos Colmenares
- Institute of Physical Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
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22
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Kuna E, Behling R, Valange S, Chatel G, Colmenares JC. Sonocatalysis: A Potential Sustainable Pathway for the Valorization of Lignocellulosic Biomass and Derivatives. Top Curr Chem (Cham) 2017; 375:41. [PMID: 28337669 PMCID: PMC5396383 DOI: 10.1007/s41061-017-0122-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 02/18/2017] [Indexed: 11/12/2022]
Abstract
Abstract Lignocellulosic biomass represents a natural renewable chemical feedstock that can be used to produce high value-added chemicals and platform molecules. Nowadays, there are extensive studies on a variety of aspects concerning the valorization of lignocellulosic biomass into desirable products. Among the current technologies for biomass conversion some require extreme conditions along with high temperatures and pressures. Therefore, major technological innovations based on more economical and environmental methodologies are currently developed both in academic laboratories and in industry. In this context, ultrasound-assisted catalysis constitutes an alternative method offering new strategies to upgrade biomass. The possibility of combining catalysis with sonication indeed provides avenues that are worth exploring for the valorization of lignocellulosic compounds into value-added chemical feedstocks. In this mini-review, the available sonochemical systems are first presented, with a focus on the most important ultrasonic parameters, which is intended to provide a mechanistic background. Next, this contribution aims to provide insight into the most recent developments along with prominent examples in the field of sonocatalysis applied to the chemical transformation of lignocellulosic biomass and its derivatives. Graphical Abstract ![]()
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Affiliation(s)
- Ewelina Kuna
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Ronan Behling
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Université de Poitiers, CNRS, ENSIP, B1, 1 rue Marcel Doré, 86073, Poitiers Cedex 9, France
| | - Sabine Valange
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Université de Poitiers, CNRS, ENSIP, B1, 1 rue Marcel Doré, 86073, Poitiers Cedex 9, France
| | - Gregory Chatel
- Univ. Savoie Mont Blanc, LCME, F-73000, Chambéry, France.
| | - Juan Carlos Colmenares
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland.
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23
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Zhou Q, Liu Y, Yu G, He F, Chen K, Xiao D, Zhao X, Feng Y, Li J. Degradation kinetics of sodium alginate via sono-Fenton, photo-Fenton and sono-photo-Fenton methods in the presence of TiO2 nanoparticles. Polym Degrad Stab 2017. [DOI: 10.1016/j.polymdegradstab.2016.11.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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24
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Wang W, Ma X, Jiang P, Hu L, Zhi Z, Chen J, Ding T, Ye X, Liu D. Characterization of pectin from grapefruit peel: A comparison of ultrasound-assisted and conventional heating extractions. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2016.06.019] [Citation(s) in RCA: 279] [Impact Index Per Article: 34.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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25
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Babu SG, Ashokkumar M, Neppolian B. The Role of Ultrasound on Advanced Oxidation Processes. Top Curr Chem (Cham) 2016; 374:75. [PMID: 27709554 DOI: 10.1007/s41061-016-0072-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 09/14/2016] [Indexed: 11/24/2022]
Abstract
This chapter describes the use of ultrasound in remediation of wastewater contaminated with organic pollutants in the absence and presence of other advanced oxidation processes (AOPs) such as sonolysis, sono-ozone process, sonophotocatalysis, sonoFenton systems and sonophoto-Fenton methods in detail. All these methods are explained with the suitable literature illustrations. In most of the cases, hybrid AOPs (combination of ultrasound with one or more AOPs) resulted in superior efficacy to that of individual AOP. The advantageous effects such as additive and synergistic effects obtained by operating the hybrid AOPs are highlighted with appropriate examples. It is worth to mention here that the utilization of ultrasound is not only restricted in preparation of modern active catalysts but also extensively used for the wastewater treatment. Interestingly, ultrasound coupled AOPs are operationally simple, efficient, and environmentally benign, and can be readily applied for large scale industrial processes which make them economically viable.
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Affiliation(s)
- Sundaram Ganesh Babu
- SRM Research Institute, SRM University, Kattankulathur, Chennai, 603203, Tamilnadu, India
- Department of Chemical Engineering, Centre for Catalysis Research and c*change (DST-NRF Centre of Excellence in Catalysis), University of Cape Town, Cape Town, 7701, South Africa
| | | | - Bernaurdshaw Neppolian
- SRM Research Institute, SRM University, Kattankulathur, Chennai, 603203, Tamilnadu, India.
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26
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Samara M, Nasser A, Mingelgrin U. Mechanochemical removal of carbamazepine. CHEMOSPHERE 2016; 160:266-272. [PMID: 27389944 DOI: 10.1016/j.chemosphere.2016.06.082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Revised: 06/21/2016] [Accepted: 06/22/2016] [Indexed: 06/06/2023]
Abstract
Carbamazepine (CBZ) is a drug used for treating epilepsy, neuropathic pain, schizophrenia and bipolar disorder. Its widespread use is indicated by its listing in the WHO's Model List of Essential Medicines. The accumulation of CBZ in various environmental compartments, specifically in crops irrigated with treated effluent or grown on soils containing biosolids, is often reported. Being a persistent PPCP (a pharmaceutical and personal care product), developing procedures to remove CBZ is of great importance. In the present study, the breakdown of CBZ by surface reactions in contact with various minerals was attempted. While Al-montmorillonite enhanced CBZ disappearance without the need to apply mechanical force, the efficiency of magnetite in enhancing the disappearance increased considerably upon applying such force. Ball milling with magnetite generated a virtually complete disappearance of CBZ (∼94% of the applied CBZ disappeared after milling for 30 min). HPLC, LC/MS and FTIR were employed in an attempt to elucidate the rate of disappearance and degradation mechanisms of CBZ. A small amount of the hydrolysis product iminostilbene was identified by LC/MS and the breaking off of carbamic acid from the fused rings skeleton of CBZ was indicated by FTIR spectroscopy, confirming the formation of iminostilbene.
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Affiliation(s)
- Mohamed Samara
- Institute of Soils, Water and Environmental Sciences, Volcani Center, ARO, Bet Dagan 50250, Israel
| | - Ahmed Nasser
- Institute of Soils, Water and Environmental Sciences, Volcani Center, ARO, Bet Dagan 50250, Israel.
| | - Uri Mingelgrin
- Institute of Soils, Water and Environmental Sciences, Volcani Center, ARO, Bet Dagan 50250, Israel
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27
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Rahimi S, Ayati B, Rezaee A. Optimization of reaction parameters for the sonophotocatalytic degradation of hydroquinone. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2740-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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28
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Al-Hamadani YAJ, Chu KH, Flora JRV, Kim DH, Jang M, Sohn J, Joo W, Yoon Y. Sonocatalytical degradation enhancement for ibuprofen and sulfamethoxazole in the presence of glass beads and single-walled carbon nanotubes. ULTRASONICS SONOCHEMISTRY 2016; 32:440-448. [PMID: 27150790 DOI: 10.1016/j.ultsonch.2016.03.030] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 03/29/2016] [Accepted: 03/30/2016] [Indexed: 06/05/2023]
Abstract
Sonocatalytic degradation experiments were carried out to determine the effects of glass beads (GBs) and single-walled carbon nanotubes (SWNTs) on ibuprofen (IBP) and sulfamethoxazole (SMX) removal using low and high ultrasonic frequencies (28 and 1000kHz). In the absence of catalysts, the sonochemical degradation at pH 7, optimum power of 0.18WmL(-1), and a temperature of 15°C was higher (79% and 72%) at 1000kHz than at 28kHz (45% and 33%) for IBP and SMX, respectively. At the low frequency (28kHz) H2O2 production increased significantly, from 10μM (no GBs) to 86μM in the presence of GBs (0.1mm, 10gL(-1)); however, no enhancement was achieved at 1000kHz. In contrast, the H2O2 production increased from 10μM (no SWNTs) to 31μM at 28kHz and from 82μM (no SWNTs) to 111μM at 1000kHz in the presence of SWNTs (45mgL(-1)). Thus, maximum removals of IBP and SMX were obtained in the presence of a combination of GBs and SWNTs at the low frequency (94% and 88%) for 60min contact time; however, >99% and 97% removals were achieved for 40 and 60min contact times at the high frequency for IBP and SMX, respectively. The results indicate that both IBP and SMX degradation followed pseudo-first-order kinetics. Additionally, the enhanced removal of IBP and SMX in the presence of catalysts was because GBs and SWNTs increased the number of free OH radicals due to ultrasonic irradiation and the adsorption capacity increase with SWNT dispersion.
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Affiliation(s)
- Yasir A J Al-Hamadani
- Department of Civil and Environmental Engineering, University of South Carolina, Columbia, SC 29208, USA
| | - Kyoung Hoon Chu
- Department of Civil and Environmental Engineering, University of South Carolina, Columbia, SC 29208, USA
| | - Joseph R V Flora
- Department of Civil and Environmental Engineering, University of South Carolina, Columbia, SC 29208, USA
| | - Do-Hyung Kim
- Korea Environmental Industry & Technology Institute, 215 Jinheungno, Eunpyeong-gu, Seoul, South Korea
| | - Min Jang
- Department of Environmental Engineering, Kwangwoon University, 447-1 Wolgye-Dong Nowon-Gu, Seoul, South Korea
| | - Jinsik Sohn
- School of Civil and Environmental Enginering, Kookmin University, Seoul 02707, South Korea
| | - Wanho Joo
- Department of Environmental Engineering, Kwangwoon University, 447-1, Wolgye-Dong, Nowon-Gu, Seoul 01897, South Korea
| | - Yeomin Yoon
- Department of Civil and Environmental Engineering, University of South Carolina, Columbia, SC 29208, USA.
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29
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Taghizadeh MT, Seifi-Aghjekohal P. Sonocatalytic degradation of 2-hydroxyethyl cellulose in the presence of some nanoparticles. ULTRASONICS SONOCHEMISTRY 2015; 26:265-272. [PMID: 25637291 DOI: 10.1016/j.ultsonch.2014.12.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Revised: 12/23/2014] [Accepted: 12/24/2014] [Indexed: 06/04/2023]
Abstract
The degradation of 2-hydroxyethyl cellulose (HEC) by means of ultrasound irradiation and its combination with heterogeneous catalysts such as TiO2 (Rutile and Anatase), Montmorillonite Clay (MMT), ZnO and Fe3O4 nanoparticles was investigated. The effect of the type and quantity of nanoparticles, the initial molecular weight of polymer and the different ultrasonic power have been studied. Degradation behavior of HEC was studied through FTIR, XRD and SEM techniques and kinetics of degradation was studied by viscometry. Also, reduce in molecular weight (Mw) of polymer was investigated by gel permeation chromatography (GPC) analysis. The results of experiments suggested that the sonocatalytic degradation of HEC were remarkably higher than sonolytic degradation. However, the catalytic activity of nanoparticles in contrast to the ultrasonic irradiation was different. The experimental results revealed that the best HEC degradation can be obtained when the added Fe3O4 amount was 0.4 g/L. Furthermore, kinetic analysis of the polymer degradation process was carried out in this study.
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30
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Zhou M, Yang H, Xian T, Li RS, Zhang HM, Wang XX. Sonocatalytic degradation of RhB over LuFeO3 particles under ultrasonic irradiation. JOURNAL OF HAZARDOUS MATERIALS 2015; 289:149-157. [PMID: 25723889 DOI: 10.1016/j.jhazmat.2015.02.054] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 02/14/2015] [Accepted: 02/18/2015] [Indexed: 05/15/2023]
Abstract
LuFeO3 particles with an average particle size of ∼200 nm were synthesized via a polyacrylamide gel route. The sonocatalytic activity of LuFeO3 particles was evaluated by the degradation of Rhodamine B (RhB) under ultrasonic irradiation, revealing that they exhibit a good sonocatalytic activity. The effects of various experimental factors including ultrasonic frequency (f), reaction solution temperature (T), catalyst dosage (Ccatalyst), initial RhB concentration (CRhB), and pH value on the sonocatalysis efficiency were investigated. It is found that the former four factors have an important influence on the sonocatalytic degradation of RhB, where the best degradation conditions are obtained to be f=60 kHz, T=40 °C, Ccatalyst=4 g L(-1), and CRhB=5 mg L(-1). The pH value has a relatively small effect on the sonocatalytic degradation of RhB compared with other experimental factors. Hydroxyl (·OH) radicals were detected by fluorimetry using terephthalic acid as a probe molecule, revealing that they are produced over the ultrasonic-irradiated LuFeO3 particles. The addition of ethanol leads to a quenching of ·OH radicals and a simultaneous decrease in the RhB degradation. This indicates that ·OH radicals are the primary active species responsible for the dye degradation.
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Affiliation(s)
- M Zhou
- School of Science, Lanzhou University of Technology, Lanzhou 730050, PR China
| | - H Yang
- School of Science, Lanzhou University of Technology, Lanzhou 730050, PR China.
| | - T Xian
- School of Science, Lanzhou University of Technology, Lanzhou 730050, PR China
| | - R S Li
- School of Science, Lanzhou University of Technology, Lanzhou 730050, PR China
| | - H M Zhang
- School of Science, Lanzhou University of Technology, Lanzhou 730050, PR China
| | - X X Wang
- School of Science, Lanzhou University of Technology, Lanzhou 730050, PR China
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31
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Abbas S, Karangwa E, Bashari M, Hayat K, Hong X, Sharif HR, Zhang X. Fabrication of polymeric nanocapsules from curcumin-loaded nanoemulsion templates by self-assembly. ULTRASONICS SONOCHEMISTRY 2015; 23:81-92. [PMID: 25453208 DOI: 10.1016/j.ultsonch.2014.10.006] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2014] [Revised: 09/11/2014] [Accepted: 10/04/2014] [Indexed: 06/04/2023]
Abstract
In this study, biodegradable polymeric nanocapsules were prepared by sequential deposition of food-grade polyelectrolytes through the self-assembling process onto the oil (medium chain triglycerides) droplets enriched with curcumin (lipophilic bioactive compound). Optimum conditions were used to prepare ultrasound-assisted nanoemulsions stabilized by octenyl-succinic-anhydride (OSA)-modified starch. Negatively charged droplets (-39.4 ± 1.84 mV) of these nanoemulsions, having a diameter of 142.7 ± 0.85 nm were used as templates for the fabrication of nanocapsules. Concentrations of layer-forming cationic (chitosan) and anionic (carboxymethylcellulose) biopolymers were optimized based on the mean droplet/particle diameter (MDD/MPD), polydispersity index (PDI) and net charge on the droplets/capsules. Prepared core-shell structures or nanocapsules, having MPD of 159.85 ± 0.92 nm, were characterized by laser diffraction (DLS), ζ-potential (ZP), atomic force microscopy (AFM), transmission electron microscopy (TEM) and confocal laser scanning microscopy (CLSM). Furthermore, physical stability of curcumin-loaded nanocapsules in suspension was determined and compared at different storage temperatures. This study may provide information regarding the formation of ultrasound-assisted polymeric nanocapsules from the nanoemulsion templates which could be helpful in the development of delivery systems for lipophilic food bioactives.
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Affiliation(s)
- Shabbar Abbas
- State Key Laboratory of Food Science & Technology, School of Food Science & Technology, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Eric Karangwa
- State Key Laboratory of Food Science & Technology, School of Food Science & Technology, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Mohanad Bashari
- State Key Laboratory of Food Science & Technology, School of Food Science & Technology, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Khizar Hayat
- Department of Chemistry, COMSATS Institute of Information Technology, Abbotabad 22060, Pakistan
| | - Xiao Hong
- State Key Laboratory of Food Science & Technology, School of Food Science & Technology, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Hafiz Rizwan Sharif
- State Key Laboratory of Food Science & Technology, School of Food Science & Technology, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Xiaoming Zhang
- State Key Laboratory of Food Science & Technology, School of Food Science & Technology, Jiangnan University, Wuxi 214122, Jiangsu, China.
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32
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Llanos J, Cotillas S, Cañizares P, Rodrigo MA. Conductive diamond sono-electrochemical disinfection (CDSED) for municipal wastewater reclamation. ULTRASONICS SONOCHEMISTRY 2015; 22:493-8. [PMID: 24882590 DOI: 10.1016/j.ultsonch.2014.05.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 03/31/2014] [Accepted: 05/14/2014] [Indexed: 05/03/2023]
Abstract
In the present work, the disinfection of actual effluents from a municipal wastewater treatment plant (WWTP) by a conductive diamond sono-electrochemical process was assessed. First, efficiency of single electrodisinfection process with diamond anodes (without the contribution of ultrasounds) was studied, finding that the total disinfection can be attained at current charges applied below 0.02kAhm(-3). It was also found that the main disinfection mechanism is the attack of Escherichia coli (E. coli) by the disinfectants produced in the electrochemical cell and that the production of chlorates is avoided when working at current densities not higher than 1.27Am(-2). Next, a marked synergistic effect was found when coupling ultrasound (US) irradiation to the electrochemical system (sono-electrochemical disinfection). This increase in the disinfection rate was found to be related to the suppression of the agglomeration of E. coli cells and the enhancement in the production of disinfectant species.
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Affiliation(s)
- Javier Llanos
- Chemical Engineering Department, University of Castilla-La Mancha, Edificio Enrique Costa Novella, Campus Universitario s/n, 13005 Ciudad Real, Spain.
| | - Salvador Cotillas
- Chemical Engineering Department, University of Castilla-La Mancha, Edificio Enrique Costa Novella, Campus Universitario s/n, 13005 Ciudad Real, Spain
| | - Pablo Cañizares
- Chemical Engineering Department, University of Castilla-La Mancha, Edificio Enrique Costa Novella, Campus Universitario s/n, 13005 Ciudad Real, Spain
| | - Manuel A Rodrigo
- Chemical Engineering Department, University of Castilla-La Mancha, Edificio Enrique Costa Novella, Campus Universitario s/n, 13005 Ciudad Real, Spain
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33
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Joseph CG, Li Puma G, Bono A, Taufiq-Yap YH, Krishnaiah D. Sonolysis, Photolysis, and Sequential Sonophotolysis for the Degradation of 2,4,6-Trichlorophenol: The Effect of Solution Concentration. CHEM ENG COMMUN 2014. [DOI: 10.1080/00986445.2014.901221] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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34
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Jelic A, Michael I, Achilleos A, Hapeshi E, Lambropoulou D, Perez S, Petrovic M, Fatta-Kassinos D, Barcelo D. Transformation products and reaction pathways of carbamazepine during photocatalytic and sonophotocatalytic treatment. JOURNAL OF HAZARDOUS MATERIALS 2013; 263 Pt 1:177-86. [PMID: 23972790 DOI: 10.1016/j.jhazmat.2013.07.068] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2013] [Revised: 06/29/2013] [Accepted: 07/30/2013] [Indexed: 05/25/2023]
Abstract
This study examines the degradation of the antiepileptic carbamazepine (CBZ) by sonolysis, TiO2-based heterogeneous photocatalysis under UV-A and simulated solar irradiation, and by the combined use of UV-A and ultrasound irradiation (i.e. sonophotocatalysis) in demineralized water, ground water and effluent wastewater. The processes were compared with respect to substrate conversion rate and the extent of DOC reduction as a measure of mineralization. CBZ was degraded following a pseudo-first order kinetics. Sonophotocatalysis provided the highest rate of CBZ transformation over the time-course of the experiment while the degree of DOC removal in pure water was similar for all the studied treatments (around 40%), and always lower than CBZ conversion. This indicated that a considerable organic load remained in the treated solutions that could also be attributed to the presence of persistent oxidation products. UPLC-(+ESI)-QToF-MS was employed to determine major CBZ-related transformation products. Several recalcitrant hydroxy- and keto-derivatives of CBZ were tentatively identified. A Daphnia magna bioassay was used to evaluate the potential toxicity of the samples collected at different time points showing that the mixtures were highly toxic to D. magna.
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Affiliation(s)
- A Jelic
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA), Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
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35
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Ultrasound-Assisted Chitosan–Surfactant Nanostructure Assemblies: Towards Maintaining Postharvest Quality of Tomatoes. FOOD BIOPROCESS TECH 2013. [DOI: 10.1007/s11947-013-1173-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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36
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Abstract
Viscometry is a valid and practical approach for monitoring the degradation of polymers in solution. In this work, at constant power and pulse, the effects of different operating parameters such as time of irradiation, temperature, solution concentration, volume, solvent, and immersion depth of horn on the rate of degradation have been investigated in aqueous solution using laboratory scale operation. A method of viscometry was used to study the degradation behavior of aqueous dispersions of microgels. The experimental results show that the viscosity of polymer solution decreased with an increase in the ultrasonic irradiation time and approached a limiting value. The present work has enabled us to understand the role of the different operating parameters in deciding the extent of viscosity reduction in aqueous dispersions of microgels and also the controlling effects of them.
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Mohajerani M, Mehrvar M, Ein-Mozaffari F. Optimization of aqueous p-aminophenol degradation by external-loop airlift sonophotoreactor using response surface methodology. Chem Eng Res Des 2012. [DOI: 10.1016/j.cherd.2012.01.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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38
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Cheng Z, Quan X, Xiong Y, Yang L, Huang Y. Synergistic degradation of methyl orange in an ultrasound intensified photocatalytic reactor. ULTRASONICS SONOCHEMISTRY 2012; 19:1027-1032. [PMID: 22436608 DOI: 10.1016/j.ultsonch.2012.02.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2011] [Revised: 02/13/2012] [Accepted: 02/20/2012] [Indexed: 05/31/2023]
Abstract
An original ultrasound (US) directly intensified photocatalytic reactor was designed to degrade azo dye pollutant methyl orange (MeO) using Degussa TiO(2) as the photocatalyst. The sonolytic, photocatalytic and sonophotocatalytic degradation of MeO in the new reactor and the synergistic effect between sonolysis and photocatalysis were investigated. Effects of operation parameters i.e., US power, TiO(2) dosage, liquid circulation velocity and air flow rate on degradation efficiency were investigated and optimized. The results showed that all parameters have optimal values for the sonophotocatalytic degradation of MeO, and the optimum conditions for the new process are US power 600 W, TiO(2) dosage 3g/L, liquid circulation velocity 4.05×10(-2) m/s and air flow rate 0.2 L/min. Under the optimum conditions, 91.52% MeO had been degraded within 1h, and the combination of sonolysis and TiO(2) photocatalysis exhibited an obvious synergetic effect.
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Affiliation(s)
- Zhiliang Cheng
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), College of Chemistry and Chemical Engineering, Southwest University, Chongqing, PR China
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39
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Ma F, Wang Z, Zhao H, Tian S. Plasma depolymerization of chitosan in the presence of hydrogen peroxide. Int J Mol Sci 2012; 13:7788-7797. [PMID: 22837727 PMCID: PMC3397559 DOI: 10.3390/ijms13067788] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Revised: 06/16/2012] [Accepted: 06/18/2012] [Indexed: 11/16/2022] Open
Abstract
The depolymerization of chitosan by plasma in the presence of hydrogen peroxide (H2O2) was investigated. The efficiency of the depolymerization was demonstrated by means of determination of viscosity-average molecular weight and gel permeation chromatography (GPC). The structure of the depolymerized chitosan was characterized by Fourier-transform infrared spectra (FT-IR), ultraviolet spectra (UV) and X-ray diffraction (XRD). The results showed that chitosan can be effectively degradated by plasma in the presence of H2O2. The chemical structure of the depolymerized chitosan was not obviously modified. The combined plasma/H2O2 method is significantly efficient for scale-up manufacturing of low molecular weight chitosan.
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Affiliation(s)
- Fengming Ma
- School of Food Science and Engineering, Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin 150090, China; E-Mails: (F.M.); (H.Z.); (S.T.)
- College of Forestry, Northeast Forestry University, 26 Hexing Road Xiangfang District, Harbin 150040, China
| | - Zhenyu Wang
- School of Food Science and Engineering, Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin 150090, China; E-Mails: (F.M.); (H.Z.); (S.T.)
- College of Forestry, Northeast Forestry University, 26 Hexing Road Xiangfang District, Harbin 150040, China
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +86-451-86283022; Fax: +86-451-86282909
| | - Haitian Zhao
- School of Food Science and Engineering, Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin 150090, China; E-Mails: (F.M.); (H.Z.); (S.T.)
| | - Shuangqi Tian
- School of Food Science and Engineering, Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin 150090, China; E-Mails: (F.M.); (H.Z.); (S.T.)
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Ebrahimi R, Tarhandeh G, Rafiey S, Narjabadi M, Khani H. Photo-Assisted Sondegradation of Hydrogels in the Presence of TiO 2Nanoparticles. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2012. [DOI: 10.5012/jkcs.2012.56.1.092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Frontistis Z, Mantzavinos D. Sonodegradation of 17α-ethynylestradiol in environmentally relevant matrices: laboratory-scale kinetic studies. ULTRASONICS SONOCHEMISTRY 2012; 19:77-84. [PMID: 21782489 DOI: 10.1016/j.ultsonch.2011.06.016] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Revised: 06/26/2011] [Accepted: 06/27/2011] [Indexed: 05/31/2023]
Abstract
The sonochemical degradation of 17α-ethynylestradiol (EE2) in secondary treated effluents was investigated. Ultrasound irradiation was provided by a horn-type sonicator operating at 80 kHz. The effect of various operating conditions such as estrogen concentration (25-160 μg/L), power density (18-46 W/L), liquid bulk temperature (15-60 °C), gas sparging (air, oxygen, and helium), solution pH (3 and 7.8), as well as the addition of radical promoters (hydrogen peroxide) or catalysts (TiO2 and Fe2+) on degradation kinetics was evaluated. Changes in estrogen concentration were followed by high performance liquid chromatography and the yeast estrogen screening (YES) assay. EE2 degradation in the range 25-110 μg/L follows first order kinetics in regard to its concentration, while lower order kinetics occur at higher concentrations. The reaction rate increases linearly with applied power and decreases exponentially with temperature at the conditions in question. Continuous sparging of air or oxygen has little effect on the kinetics relative to air-equilibrated conditions, while helium has a marginally positive effect. The inorganic and organic contents of the wastewater matrix appear to promote degradation at inherent conditions in comparison to experiments in ultrapure water. Nevertheless, the addition of H2O2 (8.6 and 86 mg/L), Fe2+ (2.5-25 mg/L) or TiO2 (50-2000 mg/L) has no or, in some cases, adverse effect on kinetics.
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Affiliation(s)
- Zacharias Frontistis
- Department of Environmental Engineering, Technical University of Crete, Polytechneioupolis, GR-73100 Chania, Greece
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42
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Influence of ultrasonic parameters on degradation of acrylic acid/acrylamide copolymer based superabsorbent hydrogels cross-linked with NMBA. IRANIAN POLYMER JOURNAL 2011. [DOI: 10.1007/s13726-011-0001-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Guo Y, Cheng C, Wang J, Wang Z, Jin X, Li K, Kang P, Gao J. Detection of reactive oxygen species (ROS) generated by TiO2(R), TiO2(R/A) and TiO2(A) under ultrasonic and solar light irradiation and application in degradation of organic dyes. JOURNAL OF HAZARDOUS MATERIALS 2011; 192:786-793. [PMID: 21700389 DOI: 10.1016/j.jhazmat.2011.05.084] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2011] [Revised: 05/12/2011] [Accepted: 05/27/2011] [Indexed: 05/31/2023]
Abstract
In the present work, the rutile, anatase and mixed (rutile and anatase) crystal phase TiO(2) powders were irradiated by ultrasound and solar light, respectively, and the generation of reactive oxygen species (ROS) were detected through the oxidation reaction from 1,5-diphenyl carbazide (DPCI) to 1,5-diphenyl carbazone (DPCO). The DPCO can be extracted by the mixed solvent of benzene and carbon tetrachloride and the extract liquors display an obvious absorption peak around 563nm. In addition, the influences of (ultrasonic or solar light) irradiation time, TiO(2) addition amount and DPCI concentration on the quantities of generated ROS were also reviewed. The kinds of generated ROS were determined by using several radical scavengers. At last, the researches on the sonocatalytic and photocatalytic degradation of several organic dyes were also performed. It is wished that this paper might offer some important subjects for broadening the applications of sonocatalytic and photocatalytic technologies.
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Affiliation(s)
- Yuwei Guo
- College of Chemistry, Liaoning University, Shenyang 110036, PR China
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44
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Taghizadeh MT, Rad H, Abdollahi R. A kinetic study of ultrasonic degradation of carboxymethyl cellulose. J Appl Polym Sci 2011. [DOI: 10.1002/app.34717] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Vinu R, Madras G. Kinetics of sono-photooxidative degradation of poly(alkyl methacrylate)s. ULTRASONICS SONOCHEMISTRY 2011; 18:608-616. [PMID: 20951624 DOI: 10.1016/j.ultsonch.2010.09.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2010] [Revised: 09/02/2010] [Accepted: 09/09/2010] [Indexed: 05/30/2023]
Abstract
The mechano-chemical degradation of poly(methyl methacrylate) (PMMA), poly(ethyl methacrylate) (PEMA) and poly(n-butyl methacrylate) (PBMA) using ultrasound (US), ultraviolet (UV) radiation and a photoinitiator (benzoin) has been investigated. The degradation of the polymers was monitored using the reduction in number average molecular weight (M(n)) and polydispersity (PDI). A degradation mechanism that included the decomposition of the initiator, generation of polymer radicals by the hydrogen abstraction of initiator radicals, reversible chain transfer between stable polymer and polymer radicals was proposed. The mechanism assumed mid-point chain scission due to US and random scission due to UV radiation. A series of experiments with different initial M(n) of the polymers were performed and the results indicated that, irrespective of the initial PDI, the PDI during the sono-photooxidative degradation evolved to a steady state value of 1.6±0.05 for all the polymers. This steady state evolution of PDI was successfully predicted by the continuous distribution kinetics model. The rate coefficients of polymer scission due to US and UV exhibited a linear increase and decrease with the size of the alkyl group of the poly(alkyl methacrylate)s, respectively.
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Affiliation(s)
- R Vinu
- Department of Chemical Engineering, Indian Institute of Science, Bangalore, India
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