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Janbandhu S, Patra U, Sukhadeve G, Kumar R, Gedam R. Photocatalytic performance of glasses embedded with Ag-TiO2 quantum dots on photodegradation of indigo carmine and eosin Y dyes in sunlight. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2022.110317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Al-Musawi TJ, Mengelizadeh N, Taghavi M, Shehu Z, Balarak D. Capability of copper-nickel ferrite nanoparticles loaded onto multi-walled carbon nanotubes to degrade acid blue 113 dye in the sonophotocatalytic treatment process. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:51703-51716. [PMID: 35246794 DOI: 10.1007/s11356-022-19460-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 02/23/2022] [Indexed: 06/14/2023]
Abstract
In this study, copper-nickel ferrite (CuNiFe2O4) nanoparticles were successfully loaded onto multi-walled carbon nanotubes (MWCNTs) by using the coprecipitation method and used as new catalysts (MWCNT-CuNiFe2O4) in the sonophotocatalytic degradation process of the acid blue 113 (AB113) dye. The success of the MWCNT-CuNiFe2O4 synthesis and its properties were determined by analyzing it using field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), X-ray powder diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). A high efficiency of dye removal (100%), total organic carbon (93%), and chemical oxygen demand (95%) were achieved with the following conditions: pH of dye solution = 5, MWCNT-CuNiFe2O4 dosage = 0.6 g/L, AB113 dye concentration = 50 mg/L, UV light intensity = 36 W, ultrasonic wave frequency = 35 kHz, and treatment time = 30 min. The kinetic results revealed that the efficiency of the sonophotocatalytic process using MWCNT-CuNiFe2O4 was higher than that of the sonolysis, photolysis, photocatalysis, and sonocatalysis processes. Scavenging studies demonstrated that the holes (h+) and hydroxyl radical (•OH) were the main reactive species for the AB113 dye degradation. The stability and recyclability of MWCNT-CuNiFe2O4 were confirmed with eight consecutive cycles for a maximum efficiency of more than 92%. The high rate of BOD5/COD indicated that the sonophotocatalytic process had the potential to degrade the dye into degradable compounds. The toxicity study with an Escherichia coli growth inhibition rate emphasized that MWCNT-CuNiFe2O4 in the sonophotocatalytic degradation process of the AB113 dye had a significant effect on reducing toxicity, when compared to processes of photolysis and photocatalysis. During the sonophotocatalytic process using MWCNT-CuNiFe2O4, the AB113 dye was mineralized into CO2, H2O, NH4+, NO3-, and SO42-. The results of the present study proved that the MWCNT-CuNiFe2O4-based sonophotocatalytic process was a promising dye degradation technology to protect the aquatic environment.
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Affiliation(s)
- Tariq J Al-Musawi
- Building and Construction Techniques Engineering Department, Al-Mustaqbal University College, Babylon, Iraq
| | - Nezamaddin Mengelizadeh
- Department of Environmental Health Engineering, Evas Faculty of Health, Larestan University of Medical Sciences, Larestan, Iran
| | - Mahmoud Taghavi
- Department of Environmental Health Engineering, Social Determinants of Health Research Center, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Zaccheus Shehu
- Department of Chemistry, Faculty of Science, Gombe State University, Gombe, Nigeria
| | - Davoud Balarak
- Department of Environmental Health, Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.
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Parvulescu VI, Epron F, Garcia H, Granger P. Recent Progress and Prospects in Catalytic Water Treatment. Chem Rev 2021; 122:2981-3121. [PMID: 34874709 DOI: 10.1021/acs.chemrev.1c00527] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Presently, conventional technologies in water treatment are not efficient enough to completely mineralize refractory water contaminants. In this context, the implementation of catalytic processes could be an alternative. Despite the advantages provided in terms of kinetics of transformation, selectivity, and energy saving, numerous attempts have not yet led to implementation at an industrial scale. This review examines investigations at different scales for which controversies and limitations must be solved to bridge the gap between fundamentals and practical developments. Particular attention has been paid to the development of solar-driven catalytic technologies and some other emerging processes, such as microwave assisted catalysis, plasma-catalytic processes, or biocatalytic remediation, taking into account their specific advantages and the drawbacks. Challenges for which a better understanding related to the complexity of the systems and the coexistence of various solid-liquid-gas interfaces have been identified.
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Affiliation(s)
- Vasile I Parvulescu
- Department of Organic Chemistry, Biochemistry and Catalysis, University of Bucharest, B-dul Regina Elisabeta 4-12, Bucharest 030016, Romania
| | - Florence Epron
- Université de Poitiers, CNRS UMR 7285, Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), 4 rue Michel Brunet, TSA 51106, 86073 Poitiers Cedex 9, France
| | - Hermenegildo Garcia
- Instituto Universitario de Tecnología Química, Universitat Politecnica de Valencia-Consejo Superior de Investigaciones Científicas, Universitat Politencia de Valencia, Av. de los Naranjos s/n, 46022 Valencia, Spain
| | - Pascal Granger
- CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Univ. Lille, F-59000 Lille, France
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Fly Ash Waste Recycling by Pt/TiO 2 Incorporation for Industrial Dye Removal. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18083887. [PMID: 33917242 PMCID: PMC8068039 DOI: 10.3390/ijerph18083887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/31/2021] [Accepted: 04/03/2021] [Indexed: 11/16/2022]
Abstract
New materials are obtained by transforming fly ash wastes into a valuable composite, with tandem adsorption and photodegradation properties. Mild hydrothermal synthesis, from titanium dioxide, platinum nanoparticles and zeolite materials obtained from a waste, fly ash, as support, was involved in the composite preparation. The platinum nanoparticles extended the photocatalytic activity of the composite in visible range (Eg = 2.1 eV). The efficiency of tandem adsorption and photocatalytic activity of the new composite were determined to be 25% for Bemacid Blau and 43.89% for Bemacid Rot after 360 min, the irradiation time. The addition of H2O2 improves the process efficiency up to 80.70% and 93.43%, respectively. The Pt nanoparticle (PtNP) contribution led to the band gap energy change to Vis light (400 nm), thus suggesting the possibility of photocatalysis under the action of a fraction of natural light.
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Ma S, Lee S, Kim K, Im J, Jeon H. Purification of organic pollutants in cationic thiazine and azo dye solutions using plasma-based advanced oxidation process via submerged multi-hole dielectric barrier discharge. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117715] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Ahmadi S, Rahdar A, Igwegbe CA, Mortazavi-Derazkola S, Banach AM, Rahdar S, Singh AK, Rodriguez-Couto S, Kyzas GZ. Praseodymium-doped cadmium tungstate (CdWO4) nanoparticles for dye degradation with sonocatalytic process. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114792] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Karimi-Maleh H, Kumar BG, Rajendran S, Qin J, Vadivel S, Durgalakshmi D, Gracia F, Soto-Moscoso M, Orooji Y, Karimi F. Tuning of metal oxides photocatalytic performance using Ag nanoparticles integration. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113588] [Citation(s) in RCA: 203] [Impact Index Per Article: 50.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Synergistic Effect of Microwave Calcination and Sonophotocatalytic Activity of TiO2-Montmorillonite on The Degradation of Direct Yellow 106 and Disperse Violet 1. BULLETIN OF CHEMICAL REACTION ENGINEERING & CATALYSIS 2020. [DOI: 10.9767/bcrec.15.2.6999.304-318] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The TiO2-pillared montmorillonite nanoparticles (TiO2-Mt) were prepared by the sol-gel method, then applied for the elimination of dyes in solution: CI Direct Yellow 106 (DY106) (azo dye) and CI Disperse Violet 1 (DV1) (anthraquinone dye) by the sonocatalytic, photocatalytic and sonophotocatalytic processes, in order to test the efficiency of photocatalysts, while photolysis, sonolysis, and sonophotolysis tests have been done previously. The photocatalysts (TiO2-Mt) were characterized by X-ray Diffraction (XRD), X-ray Fluorescence analysis (XRF), Brunauer-Emmet-Teller (BET), Scanning Electron Microscopy (SEM) methods, thermal and thermogravimetric analysis (TG/DTA) and the zero load point (pHpzc). Aqueous solutions of dye of an initial concentration (50 mg/L), in the presence of 1 g/L of photocatalyst, were irradiated using a mercury lamp (Hg) of 40 Mw/cm2 and put in contact with an ultrasonic probe with a frequency of 20 kHz and a power of 750 W, providing the ultrasound. The results obtained indicate that a weak, good and better dye degradation rate has been observed successively by the application of the sonocatalytic, photocatalytic and sonophotocatalytic processes, where the latter has shown a synergistic effect, while the photocatalyst TiO2-Mt/MW showed significant efficiency during the degradation, due to the beneficial effect of the microwave calcination mode. Copyright © 2020 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
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Abstract
In this work, nano V/TiO2 catalysts at different molar ratios were prepared and fabricated as the electrocatalytic electrodes for electrocatalytic degradation. The effect of the vanadium doping on the surface morphology, microstructural, and specific surface area of V/TiO2 catalysts was probed by field emission scanning electron microscope (FESEM) x-ray diffractometer (XRD), and Brunauer–Emmett–Teller (BET), respectively. Afterward, the solution of Acid Red 27 (AR 27, one kind of azo dye) was treated by an electrocatalytic system in which the nano V/TiO2 electrode was employed as the anode and graphite as the cathode. Results demonstrate that AR 27 can be effectively degraded by the nano V/TiO2 electrodes; the highest removal efficiency of color and total organic carbon (TOC) reached 99% and 76%, respectively, under 0.10 VT (molar ratio of vanadium to titanium) condition. The nano V/TiO2 electrode with high specific surface area facilitated the electrocatalytic degradation. The current density of 25 mA cm−2 was found to be the optimum operation for this electrocatalytic system whereas the oxygen was increased with the current density. The electricity consumption of pure TiO2 and nano V/TiO2 electrode in this electrocatalytic system was around 0.11 kWh L−1 and 0.02 kWh L−1, respectively. This implies that the nano V/TiO2 electrode possesses both high degradation and energy saving features. Moreover, the nono V/TiO2 electrode shows its possible repeated utilization.
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Ultrasound assisted preparation of rGO/TiO2 nanocomposite for effective photocatalytic degradation of methylene blue under sunlight. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.nanoso.2019.100407] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Mahdavi R, Ashraf Talesh SS. Enhancement of ultrasound-assisted degradation of Eosin B in the presence of nanoparticles of ZnO as sonocatalyst. ULTRASONICS SONOCHEMISTRY 2019; 51:230-240. [PMID: 30377082 DOI: 10.1016/j.ultsonch.2018.10.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Revised: 10/10/2018] [Accepted: 10/13/2018] [Indexed: 05/27/2023]
Abstract
In this research, ZnO nanoparticles, as a sonocatalyst for degradation of Eosin B dye under ultrasonic irradiation, were synthesized. Various experimental conditions (ultrasound irradiation power: 50-250 W, ultrasound irradiation time: 10-70 min, catalyst dosage: 1-3 g/L and initial dye concentration: 5-25 mg/L), using ZnO nanoparticles were investigated in order to find the optimal condition for the degradation of Eosin B. The crystalline and grain size of samples were obtained using X-Ray Diffraction (XRD) and Transmission Electron Microscopy (TEM), 15 and 30 nm, respectively. The nanoparticles structure was observed in the form of hexagonal. The band-gap of the prepared nanoparticles was measured as 2.9 eV which is appropriate for sonodegradation process under ultrasonic irradiation. Results demonstrated that Eosin B degradation efficiency was enhanced considerably in sonicated samples compared to non-sonicated ones. The experiments were analyzed via response surface methodology (RSM) based on central composite design (CCD). Analysis of variance (ANOVA) confirmed a good reliability of quadratic response surface model for predicting the sonocatalytic efficiency at various operational parameters (R2 = 0.9918 and Adjusted R2 = 0.9841). Results indicated that increasing the ultrasound power and time led to enhancement of Eosin B removal efficiency, while increasing the dye concentration caused to its decreasing. The degradation of dye, increased by enhancement of the catalyst dosage, where in the specified value (2.17 g/L) it began to decrease. The optimization of the process showed the maximum sonocatalyst degradation of 93.46% at irradiation power, irradiation time, catalyst dosage and dye concentration of 250 W, 70 min, 2.17 g/L and 5.08 mg/L, respectively. Kinetic studies showed that the sonodegradation of Eosin B corresponds well to first-order reaction.
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Affiliation(s)
- Reza Mahdavi
- Department of Chemical Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran
| | - S Siamak Ashraf Talesh
- Department of Chemical Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran.
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Tang D, Zhang G. Ultrasonic-assistant fabrication of cocoon-like Ag/AgFeO 2 nanocatalyst with excellent plasmon enhanced visible-light photocatalytic activity. ULTRASONICS SONOCHEMISTRY 2017; 37:208-215. [PMID: 28427625 DOI: 10.1016/j.ultsonch.2017.01.010] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 01/06/2017] [Accepted: 01/08/2017] [Indexed: 05/09/2023]
Abstract
The AgFeO2 delafossite was reported as a potential photocatalyst as well as its intense recombination rate of photogeneration charge carriers. In this work, we utilized plasmon modification method to enhance the photocatalytic activity of AgFeO2. Silkworm cocoon like Ag/AgFeO2 nanocatalyst was synthesized by an ultrasonic enhanced reduction method. XRD, HRTEM and XPS results demonstrated the well dispersed Ag0 on the surface of AgFeO2. Under visible light irradiation, 20mg/L of ARG solution was completely degraded by 0.25g/L of Ag/AgFeO2 photocatalyst with pseudo-first-order rate of 0.040min-1. The inducement of the prominently enhanced photocatalytic activity of Ag/AgFeO2 was deeply analyzed. Significant decreased intensity of photoluminescence (PL) spectra suggested the superior separation of photo-induced electrons and holes of Ag/AgFeO2 as compared to that of AgFeO2. The free h+ was confirmed as the dominant active species for the pollutant degradation. Ultimately, the photodegradation mechanism was proposed and discussed.
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Affiliation(s)
- Dandan Tang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, Hubei Provincial Collaborative Innovation Center for High Efficient Utilization of Vanadium Resources, School of Resources and Environmental Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China
| | - Gaoke Zhang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, Hubei Provincial Collaborative Innovation Center for High Efficient Utilization of Vanadium Resources, School of Resources and Environmental Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China; State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China.
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Al-Hamadani YA, Jung C, Im JK, Boateng LK, Flora JR, Jang M, Heo J, Park CM, Yoon Y. Sonocatalytic degradation coupled with single-walled carbon nanotubes for removal of ibuprofen and sulfamethoxazole. Chem Eng Sci 2017. [DOI: 10.1016/j.ces.2017.01.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Bethi B, Sonawane SH, Rohit GS, Holkar CR, Pinjari DV, Bhanvase BA, Pandit AB. Investigation of TiO2 photocatalyst performance for decolorization in the presence of hydrodynamic cavitation as hybrid AOP. ULTRASONICS SONOCHEMISTRY 2016; 28:150-160. [PMID: 26384894 DOI: 10.1016/j.ultsonch.2015.07.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Revised: 07/09/2015] [Accepted: 07/09/2015] [Indexed: 06/05/2023]
Abstract
In this article, an acoustic cavitation engineered novel approach for the synthesis of TiO2, cerium and Fe doped TiO2 nanophotocatalysts is reported. The prepared TiO2, cerium and Fe doped TiO2 nanophotocatalysts were characterized by XRD and TEM analysis to evaluate its structure and morphology. Photo catalytic performance of undoped TiO2 catalyst was investigated for the decolorization of crystal violet dye in aqueous solution at pH of 6.5 in the presence of hydro dynamic cavitation. Effect of catalyst doping with Fe and Ce was also studied for the decolorization of crystal violet dye. The results shows that, 0.8% of Fe-doped TiO2 exhibits maximum photocatalytic activity in the decolorization study of crystal violet dye due to the presence of Fe in the TiO2 and it may acts as a fenton reagent. Kinetic studies have also been reported for the hybrid AOP (HAOP) that followed the pseudo first-order reaction kinetics.
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Affiliation(s)
- Bhaskar Bethi
- Department of Chemical Engineering, National Institute of Technology, Warangal 506004, Telangana State, India
| | - S H Sonawane
- Department of Chemical Engineering, National Institute of Technology, Warangal 506004, Telangana State, India.
| | - G S Rohit
- Department of Chemical Engineering, National Institute of Technology, Warangal 506004, Telangana State, India
| | - C R Holkar
- Chemical Engineering Department, Institute of Chemical Technology, Matunga, Mumbai, MS, India
| | - D V Pinjari
- Chemical Engineering Department, Institute of Chemical Technology, Matunga, Mumbai, MS, India
| | - B A Bhanvase
- Chemical Engineering Department, Laxminarayan Institute of Technology, RTM Nagpur University, Nagpur 440033, MS, India
| | - A B Pandit
- Chemical Engineering Department, Institute of Chemical Technology, Matunga, Mumbai, MS, India
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Marković D, Šaponjić Z, Radoičić M, Radetić T, Vodnik V, Potkonjak B, Radetić M. Sonophotocatalytic degradation of dye C.I. Acid Orange 7 by TiO2 and Ag nanoparticles immobilized on corona pretreated polypropylene non-woven fabric. ULTRASONICS SONOCHEMISTRY 2015; 24:221-229. [PMID: 25487219 DOI: 10.1016/j.ultsonch.2014.11.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 11/06/2014] [Accepted: 11/19/2014] [Indexed: 06/04/2023]
Abstract
This study discusses the possibility of using corona pre-treated polypropylene (PP) non-woven fabric as a support for immobilization of colloidal TiO2 and Ag nanoparticles in order to remove dye C.I. Acid Orange 7 from aqueous solution. Dye removal efficiency by sonocatalysis, photocatalysis and sonophotocatalysis was evaluated on corona pre-treated fabric loaded with TiO2 nanoparticles, corona pre-treated fabric double loaded with TiO2 nanoparticles and corona pre-treated fabrics loaded with TiO2 nanoparticles before and after deposition of Ag nanoparticles. In addition, the stability of PP non-woven fabric during these processes was investigated. The substrates were characterized by SEM, EDX and AAS analyses. The change of the dye concentration was evaluated by UV-VIS spectrophotometry. Unlike sonocatalysis and photocatalysis, complete dye removal from both solution and non-woven fabric was obtained already after 240-270 min of sonophotocatalysis. Corona pre-treated PP non-woven fabric loaded with Ag nanoparticles prior to deposition of TiO2 nanoparticles provided excellent degradation efficiency and superior reusability. Sonophotocatalytic degradation of dye in the presence of all investigated samples was the most prominent in acidic conditions. Although this nanocomposite system ensured fast discoloration of dye solution, TOC values of water measured after sonophotocatalysis were not satisfactory because of PP degradation. Therefore, it is suggested to include TOC evaluation in each case study where different supports for TiO2 nanoparticles are used since these nanoparticles may guarantee the dye removal from solution but the stability of support could be problematic causing even more serious environmental impact.
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Affiliation(s)
- Darka Marković
- Innovation Center, Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, Serbia
| | - Zoran Šaponjić
- Vinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia
| | - Marija Radoičić
- Vinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia
| | - Tamara Radetić
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, Serbia
| | - Vesna Vodnik
- Vinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia
| | - Branislav Potkonjak
- Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia
| | - Maja Radetić
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, Serbia.
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García NL, Famá L, D’Accorso NB, Goyanes S. Biodegradable Starch Nanocomposites. ADVANCED STRUCTURED MATERIALS 2015. [DOI: 10.1007/978-81-322-2470-9_2] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Riaz U, Ashraf SM. Synergistic effect of microwave irradiation and conjugated polymeric catalyst in the facile degradation of dyes. RSC Adv 2014. [DOI: 10.1039/c4ra06698g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Degradation of Orange G under controlled conditions using microwave irradiation.
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Affiliation(s)
- Ufana Riaz
- Materials Research Laboratory
- Department of Chemistry Jamia Millia Islamia (A Central University)
- New Delhi-110025, India
| | - S. M. Ashraf
- Materials Research Laboratory
- Department of Chemistry Jamia Millia Islamia (A Central University)
- New Delhi-110025, India
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Niu J, Zhang L, Li Y, Zhao J, Lv S, Xiao K. Effects of environmental factors on sulfamethoxazole photodegradation under simulated sunlight irradiation: kinetics and mechanism. J Environ Sci (China) 2013; 25:1098-1106. [PMID: 24191598 DOI: 10.1016/s1001-0742(12)60167-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
To advance the knowledge of the environmental fate of sulfamethoxazole (SMX), we systematically investigated the effects of natural water constituents and synthetic substances (i.e., TiO2 nanoparticles (nTiO2) and Ti-doped beta-Bi2O3 (NTB)) on the photodegradation kinetics of SMX under xenon lamp irradiation. The photolysis of SMX in aqueous solution followed first-order kinetics. Our results showed that higher concentrations of SMX, fulvic acid, suspended sediments, NTB and higher pH value decreased the photodegradation rates of SMX, whereas H2O2 improved the SMX photodegradation. TiO2 nanoparticles had a dual effect on photodegradation due to their photocatalytic activity and photoabsorption of photons. No intermediates more toxic toward Vibrio fischeri than SMX were produced after direct photolysis and photocatalytic degradation for 3 hr. The photolysis of SMX involved three pathways: hydroxylation, cleavage of the sulfonamide bond, and fragmentation of the isoxazole ring. This study lays the groundwork for a better understanding of the environmental fate of SMX.
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Affiliation(s)
- Junfeng Niu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China.
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Durán A, Monteagudo JM, Sanmartín I, Gómez P. Homogeneous sonophotolysis of food processing industry wastewater: Study of synergistic effects, mineralization and toxicity removal. ULTRASONICS SONOCHEMISTRY 2013; 20:785-791. [PMID: 23122709 DOI: 10.1016/j.ultsonch.2012.09.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Revised: 09/12/2012] [Accepted: 09/14/2012] [Indexed: 06/01/2023]
Abstract
The mineralization of industrial wastewater coming from food industry using an emerging homogeneous sonophotolytic oxidation process was evaluated as an alternative to or a rapid pretreatment step for conventional anaerobic digestion with the aim of considerably reducing the total treatment time. At the selected operation conditions ([H(2)O(2)]=11,750ppm, pH=8, amplitude=50%, pulse length (cycles)=1), 60% of TOC is removed after 60min and 98% after 180min when treating an industrial effluent with 2114ppm of total organic carbon (TOC). This process removed completely the toxicity generated during storing or due to intermediate compounds. An important synergistic effect between sonolysis and photolysis (H(2)O(2)/UV) was observed. Thus the sonophotolysis (ultrasound/H(2)O(2)/UV) technique significantly increases TOC removal when compared with each individual process. Finally, a preliminary economical analysis confirms that the sono-photolysis with H(2)O(2) and pretreated water is a profitable system when compared with the same process without using ultrasound waves and with no pretreatment.
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Affiliation(s)
- A Durán
- Department of Chemical Engineering, Grupo IMAES, Escuela Técnica Superior de Ingenieros Industriales, Instituto de Investigaciones Energéticas y Aplicaciones Industriales, Universidad de Castilla-La Mancha, Avda. Camilo José Cela 3, 13071 Ciudad Real, Spain.
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Self-assemble flower-like SnO2/Ag heterostructures: Correlation among composition, structure and photocatalytic activity. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2012.11.050] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Wu TY, Guo N, Teh CY, Hay JXW. Applications of Ultrasound Technology in Environmental Remediation. SPRINGERBRIEFS IN MOLECULAR SCIENCE 2013. [DOI: 10.1007/978-94-007-5533-8_3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Shirsath SR, Pinjari DV, Gogate PR, Sonawane SH, Pandit AB. Ultrasound assisted synthesis of doped TiO2 nano-particles: characterization and comparison of effectiveness for photocatalytic oxidation of dyestuff effluent. ULTRASONICS SONOCHEMISTRY 2013; 20:277-286. [PMID: 22749748 DOI: 10.1016/j.ultsonch.2012.05.015] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Revised: 05/14/2012] [Accepted: 05/25/2012] [Indexed: 06/01/2023]
Abstract
The present work deals with the synthesis of titanium dioxide nanoparticles doped with Fe and Ce using sonochemical approach and its comparison with the conventional doping method. The prepared samples have been characterized using X-ray diffraction (XRD), FTIR, transmission electron microscopy (TEM) and UV-visible spectra (UV-vis). The effectiveness of the synthesized catalyst for the photocatalytic degradation of crystal violet dye has also been investigated considering crystal violet degradation as the model reaction. It has been observed that the catalysts prepared by sonochemical method exhibit higher photocatalytic activity as compared to the catalysts prepared by the conventional methods. Also the Ce-doped TiO(2) exhibits maximum photocatalytic activity followed by Fe-doped TiO(2) and the least activity was observed for only TiO(2). The presence of Fe and Ce in the TiO(2) structure results in a significant absorption shift towards the visible region. Detailed investigations on the degradation indicated that an optimal dosage with 0.8 mol% doping of Ce and 1.2 mol% doping of Fe in TiO(2) results in higher extents of degradation. Kinetic studies also established that the photocatalytic degradation followed the pseudo first-order reaction kinetics. Overall it has been established that ultrasound assisted synthesis of doped photocatalyst significantly enhances the photocatalytic activity.
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Affiliation(s)
- S R Shirsath
- Department of Chemical Engineering, Vishwakarma Institute of Technology, 666 Upper Indira Nagar, Pune 411037, India
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24
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Liu J, Wang Z, Luo Z, Bashir S. Effective bactericidal performance of silver-decorated titania nano-composites. Dalton Trans 2013. [DOI: 10.1039/c2dt31648j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Abstract
Water pollution is increasing at an ever increasing pace and the whole world is in the cancerous grip of this pollution. Various industries are discharging their untreated effluents into the nearby water resources; thus, adding to the existing water pollution to a great extent. Hence, there is a pressing demand to develop an alternate technology for wastewater treatment and in this context; photocatalysis has emerged as an Advanced Oxidation Process with green chemical approach for such a treatment. This chapter deals with photocatalytic degradation of different kinds of organic pollutants; mainly surfactants, pesticides, dyes, phenols, chloro compounds, nitrogen containing compounds etc. Mechanisms of their degradation have also been discussed with hydroxyl and allied radicals as the main active oxidizing species.
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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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27
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Jiang L, Zhou G, Mi J, Wu Z. Fabrication of visible-light-driven one-dimensional anatase TiO2/Ag heterojunction plasmonic photocatalyst. CATAL COMMUN 2012. [DOI: 10.1016/j.catcom.2012.03.017] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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28
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Jia J, Zhang S, Wang P, Wang H. Degradation of high concentration 2,4-dichlorophenol by simultaneous photocatalytic-enzymatic process using TiO2/UV and laccase. JOURNAL OF HAZARDOUS MATERIALS 2012; 205-206:150-155. [PMID: 22236949 DOI: 10.1016/j.jhazmat.2011.12.052] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2011] [Revised: 11/24/2011] [Accepted: 12/19/2011] [Indexed: 05/31/2023]
Abstract
Removal of 2,4-dichlorophenol (2,4-DCP) by TiO2/UV photocatalytic, laccase, and simultaneous photocatalytic-enzymatic treatments were investigated. Coupling of native laccase with TiO2/UV showed a negative synergetic effect due to the rapid inactivation of laccase. Immobilizing laccase covalently to controlled porous glass (CPG) effectively enhanced the stability of laccase against TiO2/UV induced inactivation. By coupling CPG-laccase with the TiO2/UV the degradation efficiency of 2,4-DCP was significantly increased as compared with the results obtained when immobilized laccase or TiO2/UV were separately used. Moreover, the enhancement was more remarkable for the degradation of 2,4-DCP with high concentration, such that for the degradation of 5mM 2,4-DCP, 90% removal percentage was achieved within 2h with the coupled degradation process. While for the TiO2/UV and CPG-laccase process, the removal percentage of 2,4-DCP at 2h were only 26.5% and 78.1%, respectively. The degradation kinetics were analyzed using a intermediate model by taking into account of the intermediates formed during the degradation of 2,4-DCP. The high efficiency of the coupled degradation process therefore provided a novel strategy for degradation of concentrated 2,4-DCP. Furthermore, a thermometric biosensor using the immobilized laccase as biorecognition element was constructed for monitoring the degradation of 2,4-DCP, the result indicated that the biosensor was precise and sensitive.
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Affiliation(s)
- Jingbo Jia
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
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29
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Safavi A, Momeni S. Highly efficient degradation of azo dyes by palladium/hydroxyapatite/Fe3O4 nanocatalyst. JOURNAL OF HAZARDOUS MATERIALS 2012; 201-202:125-131. [PMID: 22177016 DOI: 10.1016/j.jhazmat.2011.11.048] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2011] [Revised: 11/13/2011] [Accepted: 11/15/2011] [Indexed: 05/31/2023]
Abstract
Palladium/hydroxyapatite/Fe(3)O(4) (Pd/HAP/Fe(3)O(4)) nanocatalyst was synthesized and evaluated for its catalytic activity towards the degradation of azo dyes (methyl red, methyl orange and methyl yellow) selected as test dye species. The Pd/HAP/Fe(3)O(4) was employed as a novel catalyst that offers high catalytic activity, magnetic separateability and good stability. It was found that catalytic activity of this catalyst was significantly enhanced under acidic conditions. The degradation mechanism is proposed to be due to the reaction of Pd/HAP/Fe(3)O(4) with dissolved oxygen with the assistance of acid to form a Pd hydroperoxide, which oxidizes azo dyes under HAP catalysis. This in turn shows the clear importance of HAP as the support for the Pd nanocatalyst. The concentrations of dyes change exponentially with time and high rate constants were obtained for the degradation of these dyes. The pseudo-first-order equation was shown to fit degradation kinetics in most cases. Therefore, the Pd/HAP/Fe(3)O(4) nanostructures are considered as a highly efficient and promising catalyst in degradation systems and they can be effectively recovered after use.
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Affiliation(s)
- Afsaneh Safavi
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz, Iran.
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He Y, Grieser F, Ashokkumar M. The mechanism of sonophotocatalytic degradation of methyl orange and its products in aqueous solutions. ULTRASONICS SONOCHEMISTRY 2011; 18:974-980. [PMID: 21481625 DOI: 10.1016/j.ultsonch.2011.03.017] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2010] [Revised: 03/10/2011] [Accepted: 03/17/2011] [Indexed: 05/30/2023]
Abstract
In this study, it was found that a hybrid technique, sonophotocatalysis, is able to degrade a parent organic pollutant (methyl orange) as well as its by-products. The analysis of products formed during the whole degradation has demonstrated that the pH or the selection of oxidation process (sonolysis/photocatalysis/sonophotocatalysis) is able to control the degradation pathway. It was shown in the by-products analysis that the solution pH can alter the amount of each product generated during the sonophotocatalytic degradation. It was revealed that the different degradation rates of methyl orange and its products result from the solution pH and the nature of the organic products. Furthermore, a comparison of the data obtained from the oxidation processes on the degradation of the reaction intermediates identified the advantages of the combined system. It is concluded that sonophotocatalysis is capable of yielding a more complete and faster mineralization of organic pollutants than the individual processes. However, as in the degradation of the parent compound, the overall mineralization is lower than an additive effect (negative synergistic effect).
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Affiliation(s)
- Yuanhua He
- Particulate Fluid Processing Center, School of Chemistry, University of Melbourne, Parkville, VIC, Australia
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31
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Enhanced pervaporation performance of poly (dimethyl siloxane) membrane by incorporating titania microspheres with high silver ion loading. J Memb Sci 2011. [DOI: 10.1016/j.memsci.2011.05.027] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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32
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Her N, Park JS, Yoon J, Sohn J, Lee S, Yoon Y. Comparative Study of Sonocatalytic Enhancement for Removal of Bisphenol A and 17α-Ethinyl Estradiol. Ind Eng Chem Res 2011. [DOI: 10.1021/ie102419v] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Namguk Her
- Department of Chemistry and Environmental Sciences, Korea Army Academy at Young-Cheon, 135-1 Changhari, Kokyungmeon, Young-cheon, Gyeongbuk 770-849, South Korea
| | - Jong-Sung Park
- Department of Chemistry and Environmental Sciences, Korea Army Academy at Young-Cheon, 135-1 Changhari, Kokyungmeon, Young-cheon, Gyeongbuk 770-849, South Korea
| | - Jaekyung Yoon
- New and Renewable Energy Research Division, Korea Institute of Energy Research, 71-2 Jang-Dong, Yuseong-Gu, Daejeon 305-343, Korea
| | - Jinsik Sohn
- School of Civil and Environmental Engineering, Kookmin University, Seoul 136-702, South Korea
| | - Sangho Lee
- School of Civil and Environmental Engineering, Kookmin University, Seoul 136-702, South Korea
| | - Yeomin Yoon
- Department of Civil and Environmental Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
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33
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Park JS, Her N, Oh J, Yoon Y. Sonocatalytic degradation of bisphenol A and 17α-ethinyl estradiol in the presence of stainless steel wire mesh catalyst in aqueous solution. Sep Purif Technol 2011. [DOI: 10.1016/j.seppur.2011.02.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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34
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Medina-Ramirez I, Luo Z, Bashir S, Mernaugh R, Liu JL. Facile design and nanostructural evaluation of silver-modified titania used as disinfectant. Dalton Trans 2010; 40:1047-54. [PMID: 21161082 DOI: 10.1039/c0dt00784f] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fundamental research has been carried out to define optimal "green" synthesis conditions for the production of titania (TiO(2)) and silver (Ag) nanocomposites (TANCs) ranging from 12.7-22.8 nm in diameter. A bottom-up colloidal approach was employed to accurately control TANC monodispersity and composition. TANCs were found to be effective at inactivating Escherichia coli (E. coli) in water. The presence of Ag in the nanocomposites induced a decrease in TiO(2) band gap energy, which favoured valence to conduction band electron transfer and allowed for electron excitation using visible light. Aggregation of ultra-fine particles was prevented through the use of a long-chain polymer as evidenced by electrophoretic mobility studies. The TANCs catalyzed oxidation of bacterial membranes and cell death or disinfection. Theoretically, the TANC mode of E. coli disinfection is via water photolysis, which results in production of hydroxyl radicals and hydrogen peroxide. These interact with the outer membrane polysaccharides and lipids, leading to lipid peroxidation, membrane weakening and resulted in cell death. Our overarching goals were to optimize the variables involved in TANC "green" synthesis and to characterize its nanostructure. High resolution (HR) transmission and scanning electron microscopic (TEM and SEM) studies demonstrated that TANCs were highly crystalline and mono-dispersive. Elemental composition of Ag and Ti, as measured by X-ray energy dispersive (EDS) and X-ray photoelectron spectroscopy (XPS) confirmed sample purity. Ultraviolet-visible (UV-VIS) spectroscopy showed that the energy band-gap of Ag modified TiO(2) was in the visible range.
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Affiliation(s)
- Iliana Medina-Ramirez
- Chemistry Department, Universidad Autonoma de Aguascalientes. Av. Universidad 940 C. P., Aguascalientes, Ags., postcode 20100, Mexico.
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35
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The effect of phosphorous precursor on the CO oxidation activity of P-modified TiO2 supported Ag catalysts. CATAL COMMUN 2010. [DOI: 10.1016/j.catcom.2010.06.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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36
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Madhavan J, Kumar PSS, Anandan S, Zhou M, Grieser F, Ashokkumar M. Ultrasound assisted photocatalytic degradation of diclofenac in an aqueous environment. CHEMOSPHERE 2010; 80:747-52. [PMID: 20542317 DOI: 10.1016/j.chemosphere.2010.05.018] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2009] [Revised: 05/13/2010] [Accepted: 05/17/2010] [Indexed: 05/24/2023]
Abstract
Diclofenac (DF) is an anti-inflammatory drug found in aqueous environments as a pollutant due to its widespread use. The sonolytic, photocatalytic and sonophotocatalytic degradation of DF using three photocatalysts (TiO(2), ZnO and Fe-ZnO) were studied. The degradation of DF followed first-order like kinetics. The sonophotocatalytic degradation using TiO(2) under UV-vis radiation showed a slight synergistic enhancement in the degradation of the parent compound, whereas a detrimental effect was observed for the mineralization process. In the case of Fe-ZnO, both degradation and mineralization showed near additive effects. A number of degradation products were identified.
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Affiliation(s)
- Jagannathan Madhavan
- Particulate Fluids Processing Centre, School of Chemistry, University of Melbourne, VIC-3010, Australia
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37
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Lee J, Dong X, Dong X. Ultrasonic synthesis and photocatalytic characterization of H3PW12O40/TiO2 (anatase). ULTRASONICS SONOCHEMISTRY 2010; 17:649-653. [PMID: 20171134 DOI: 10.1016/j.ultsonch.2010.01.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2009] [Revised: 12/09/2009] [Accepted: 01/22/2010] [Indexed: 05/28/2023]
Abstract
A novel H(3)PW(12)O(40)/TiO(2) (anatase) composite photocatalyst was prepared by a high-intensity ultrasonic method using a lower temperature (80 degrees C) and was characterized by XRD and FT-IR. Its photocatalytic activity, using solar light, was evaluated through the degradation of organic dye methylene blue (MB) in aqueous. When MB solution (50mg/l, 200 ml) containing H(3)PW(12)O(40)/TiO(2) (anatase) (0.4 g) was degraded by solar irradiation after 90 min, the removal of concentration and TOC of MB reached 95% and 73%, respectively. The photocatalyst activity of H(3)PW(12)O(40)/TiO(2) (anatase) was much higher than TiO(2) which was prepared in the same way. H(3)PW(12)O(40)/TiO(2) remained efficient after five repeated experiments.
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Affiliation(s)
- Jia Lee
- School of Chemical and Material Engineering, Dalian Polytechnic University, Dalian 116034, PR China.
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38
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Dastjerdi R, Montazer M. A review on the application of inorganic nano-structured materials in the modification of textiles: focus on anti-microbial properties. Colloids Surf B Biointerfaces 2010; 79:5-18. [PMID: 20417070 DOI: 10.1016/j.colsurfb.2010.03.029] [Citation(s) in RCA: 536] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2009] [Revised: 03/14/2010] [Accepted: 03/23/2010] [Indexed: 11/20/2022]
Abstract
Textiles can provide a suitable substrate to grow micro-organisms especially at appropriate humidity and temperature in contact to human body. Recently, increasing public concern about hygiene has been driving many investigations for anti-microbial modification of textiles. However, using many anti-microbial agents has been avoided because of their possible harmful or toxic effects. Application of inorganic nano-particles and their nano-composites would be a good alternative. This review paper has focused on the properties and applications of inorganic nano-structured materials with good anti-microbial activity potential for textile modification. The discussed nano-structured anti-microbial agents include TiO(2) nano-particles, metallic and non-metallic TiO(2) nano-composites, titania nanotubes (TNTs), silver nano-particles, silver-based nano-structured materials, gold nano-particles, zinc oxide nano-particles and nano-rods, copper nano-particles, carbon nanotubes (CNTs), nano-clay and its modified forms, gallium, liposomes loaded nano-particles, metallic and inorganic dendrimers nano-composite, nano-capsules and cyclodextrins containing nano-particles. This review is also concerned with the application methods for the modification of textiles using nano-structured materials.
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Affiliation(s)
- Roya Dastjerdi
- Textile Engineering Department, Center of Excellence in Textile, Amirkabir University of Technology (Tehran Polytechnic), Hafez Avenue, Tehran, Iran
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39
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Characteristics and photocatalytic degradation of methyl orange on Ti-RH-MCM-41 and TiO2/RH-MCM-41. KOREAN J CHEM ENG 2010. [DOI: 10.1007/s11814-009-0270-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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40
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Joseph CG, Li Puma G, Bono A, Krishnaiah D. Sonophotocatalysis in advanced oxidation process: a short review. ULTRASONICS SONOCHEMISTRY 2009; 16:583-9. [PMID: 19282232 DOI: 10.1016/j.ultsonch.2009.02.002] [Citation(s) in RCA: 159] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2008] [Revised: 11/16/2008] [Accepted: 02/02/2009] [Indexed: 05/15/2023]
Abstract
Sonophotocatalysis involves the use of a combination of ultrasonic sound waves, ultraviolet radiation and a semiconductor photocatalyst to enhance a chemical reaction by the formation of free radicals in aqueous systems. Researchers have used sonophotocatalysis in a variety of investigations i.e. from water decontamination to direct pollutant degradation. This degradation process provides an excellent opportunity to reduce reaction time and the amount of reagents used without the need for extreme physical conditions. Given its advantages, the sonophotocatalysis process has a futuristic application from an engineering and fundamental aspect in commercial applications. A detailed search of published reports was done and analyzed in this paper with respect to sonication, photocatalysis and advanced oxidation processes.
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Affiliation(s)
- Collin G Joseph
- School of Science and Technology, Universiti Malaysia Sabah, 88999 Kota Kinabalu, Sabah, Malaysia.
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41
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Photocatalytic degradation of methyl orange using polymer–titania microcomposites. J Colloid Interface Sci 2009; 333:457-64. [DOI: 10.1016/j.jcis.2009.02.016] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2008] [Revised: 01/23/2009] [Accepted: 02/08/2009] [Indexed: 11/19/2022]
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