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Highly Efficient Photocatalytic Properties of La-Doped ZnO over Pristine ZnO for Degradation of 2-Chlorophenol from Aquatic Agriculture Waste. CHEMISTRY AFRICA 2023. [DOI: 10.1007/s42250-023-00630-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/13/2023]
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2
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Vinayagasundaram C, Samson Nesaraj A, Sivaranjana P. Overview on multicomponent ceramic composite materials used for efficient photocatalysis – An update. J INDIAN CHEM SOC 2023. [DOI: 10.1016/j.jics.2023.100908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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3
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Mixed-phase of mesoporous titania nanoparticles as visible-light driven photodegradation of 2-chlorophenol: influence type of surfactant. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-022-02663-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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4
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Kobkeatthawin T, Chaveanghong S, Trakulmututa J, Amornsakchai T, Kajitvichyanukul P, Smith SM. Photocatalytic Activity of TiO 2/g-C 3N 4 Nanocomposites for Removal of Monochlorophenols from Water. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2852. [PMID: 36014720 PMCID: PMC9414261 DOI: 10.3390/nano12162852] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 06/15/2023]
Abstract
This research employed g-C3N4 nanosheets in the hydrothermal synthesis of TiO2/g-C3N4 hybrid photocatalysts. The TiO2/g-C3N4 heterojunctions, well-dispersed TiO2 nanoparticles on the g-C3N4 nanosheets, are effective photocatalysts for the degradation of monochlorophenols (MCPs: 2-CP, 3-CP, and 4-CP) which are prominent water contaminants. The removal efficiency of 2-CP and 4-CP reached 87% and 64%, respectively, after treatment of 25 ppm CP solutions with the photocatalyst (40TiO2/g-C3N4, 1 g/L) and irradiation with UV-Vis light. Treatment of CP solutions with g-C3N4 nanosheets or TiO2 alone in conjunction with irradiation gave removal efficiencies lower than 50%, which suggests the two act synergically to enhance the photocatalytic activity of the 40TiO2/g-C3N4 nanocomposite. Superoxide and hydroxyl radicals are key active species produced during CP photodegradation. In addition, the observed nitrogen and Ti3+ defects and oxygen vacancies in the TiO2/g-C3N4 nanocomposites may improve the light-harvesting ability of the composite and assist preventing rapid electron-hole recombination on the surface, enhancing the photocatalytic performance. In addition, interfacial interactions between the MCPs (low polarity) and thermally exfoliated carbon nitride in the TiO2/g-C3N4 nanocomposites may also enhance MCP degradation.
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Affiliation(s)
- Thawanrat Kobkeatthawin
- Center of Sustainable Energy and Green Materials and Department of Chemistry, Faculty of Science, Mahidol University, 999 Phuttamonthon Sai 4 Road, Salaya, Nakhon Pathom 73170, Thailand
| | - Suwilai Chaveanghong
- Center of Sustainable Energy and Green Materials and Department of Chemistry, Faculty of Science, Mahidol University, 999 Phuttamonthon Sai 4 Road, Salaya, Nakhon Pathom 73170, Thailand
| | - Jirawat Trakulmututa
- Center of Sustainable Energy and Green Materials and Department of Chemistry, Faculty of Science, Mahidol University, 999 Phuttamonthon Sai 4 Road, Salaya, Nakhon Pathom 73170, Thailand
| | - Taweechai Amornsakchai
- Center of Sustainable Energy and Green Materials and Department of Chemistry, Faculty of Science, Mahidol University, 999 Phuttamonthon Sai 4 Road, Salaya, Nakhon Pathom 73170, Thailand
- Center of Excellence for Innovation in Chemistry, 272 Rama VI Road, Rajthevi, Bangkok 10400, Thailand
| | - Puangrat Kajitvichyanukul
- Department of Environmental Engineering, Faculty of Engineering, Chiang Mai University, 239 Huay Kaew Road, Muang District, Chiang Mai 50200, Thailand
- Sustainable Engineering Research Center for Pollution and Environmental Management, Faculty of Engineering, Chiang Mai University, 239 Huay Kaew Road, Muang District, Chiang Mai 50200, Thailand
| | - Siwaporn Meejoo Smith
- Center of Sustainable Energy and Green Materials and Department of Chemistry, Faculty of Science, Mahidol University, 999 Phuttamonthon Sai 4 Road, Salaya, Nakhon Pathom 73170, Thailand
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Exploiting the potential of silver oxo-salts with graphitic carbon nitride/fibrous silica-titania in designing a new dual Z-scheme photocatalyst for photodegradation of 2-chlorophenol. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120984] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Chen J, Gu P, Guan Y, Su H. Synthesis of g-C3N4 composite co-doped with CeO2 and sugar cane bagasse charcoal for the degradation of methylene blue under visible light. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128551] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Rasheed T, Rizwan K, Bilal M, Sher F, Iqbal HMN. Tailored functional materials as robust candidates to mitigate pesticides in aqueous matrices-a review. CHEMOSPHERE 2021; 282:131056. [PMID: 34111632 DOI: 10.1016/j.chemosphere.2021.131056] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 05/09/2021] [Accepted: 05/28/2021] [Indexed: 02/08/2023]
Abstract
Pesticides are among the top-priority contaminants, which significantly contribute to environmental deterioration. Conventional techniques are not efficient enough to remove pollutants from environmental matrices. The development of functional materials has emerged as promising candidates to remove and degrade pesticides and related hazardous compounds. Furthermore, the nanohybrid materials with unique structural and functional characteristics, such as better material anchorage, mass transfer, electron-hole separation, and charged interaction make them a versatile option to treat and reduce pollutants from aqueous matrices. Herein, we present the current progress in the development of functional materials for the abatement of toxic pesticides. The physicochemical characteristics and pesticide-removal functionalities of various metallic functional materials (e.g., zirconium, zinc, titanium, tungsten, and iron), polymer, and carbon-based materials are critically discussed with suitable examples. Finally, the industrial-scale applications of the functional materials, concluding remarks, and future directions in this important arena are given.
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Affiliation(s)
- Tahir Rasheed
- School of Chemistry, and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Komal Rizwan
- Department of Chemistry University of Sahiwal, Sahiwal, 57000, Pakistan.
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Farooq Sher
- Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, UK
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Science, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L., CP 64849, Mexico
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Abstract
TiO2 is a semiconductor material with high chemical stability and low toxicity. It is widely used in the fields of catalysis, sensing, hydrogen production, optics and optoelectronics. However, TiO2 photocatalyst is sensitive to ultraviolet (UV) light; this is why its photocatalytic activity and quantum efficiency are reduced. To enhance the photocatalytic efficiency in the visible light range as well as to increase the number of the active sites on the crystal surface or inhibit the recombination rate of photogenerated electron–hole pairs electrons, various metal ions were used to modify TiO2. This review paper comprehensively summarizes the latest progress on the modification of TiO2 photocatalyst by a variety of metal ions. Lastly, the future prospects of the modification of TiO2 as a photocatalyst are proposed.
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Azami MS, Jalil AA, Hassan NS, Hussain I, Fauzi AA, Aziz MAA. Green carbonaceous material‒fibrous silica-titania composite photocatalysts for enhanced degradation of toxic 2-chlorophenol. JOURNAL OF HAZARDOUS MATERIALS 2021; 414:125524. [PMID: 33647620 DOI: 10.1016/j.jhazmat.2021.125524] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 02/12/2021] [Accepted: 02/22/2021] [Indexed: 06/12/2023]
Abstract
In this work, fibrous silica-titania (FST) was successfully prepared by the microemulsion method prior to the addition of three types of carbonaceous materials: graphitic-carbon nitride, g-C3N4 (CN), graphene nanoplatelets (GN), and multi-wall carbon nanotubes, MWCNT (CNT), via a solid-state microwave irradiation technique. The catalysts were characterized using XRD, FESEM, TEM, FTIR, UV-Vis DRS, N2 adsorption-desorption, XPS and ESR, while their photoactivity was examined on the degradation of toxic 2-chlorophenol (2-CP). The result demonstrated that the initial reaction rate was in the following order: CNFST (5.1 × 10-3 mM min-1) > GNFST (2.5 × 10-3 mM min-1) > CNTFST (2.3 × 10-3 mM min-1). The best performance was due to the polymeric structure of g-C3N4 with a good dispersion of C and N on the surface FST. This dispersion contributed towards an appropriate quantity of defect sites, as a consequence of the greater interaction between g-C3N4 and the FST support, that led to narrowed of band gap energy (2.98 eV to 2.10 eV). The effect of scavenger and ESR studies confirmed that the photodegradation over CNFST occurred via a Z-scheme mechanism. It is noteworthy that the addition of green carbonaceous materials on the FST markedly enhanced the photodegradation of toxic 2-CP.
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Affiliation(s)
- M S Azami
- Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
| | - A A Jalil
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia; Centre of Hydrogen Energy, Institute of Future Energy, 81310 UTM Johor Bahru, Johor, Malaysia.
| | - N S Hassan
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
| | - I Hussain
- Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
| | - A A Fauzi
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
| | - M A A Aziz
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia; Centre of Hydrogen Energy, Institute of Future Energy, 81310 UTM Johor Bahru, Johor, Malaysia
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Engineering nanostructures of CuO-based photocatalysts for water treatment: Current progress and future challenges. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.06.031] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Donga C, Mishra SB, Abd-El-Aziz AS, Mishra AK. Advances in Graphene-Based Magnetic and Graphene-Based/TiO2 Nanoparticles in the Removal of Heavy Metals and Organic Pollutants from Industrial Wastewater. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01679-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Bao Z, Chen D, Li N, Xu Q, Li H, He J, Lu J. Superamphiphilic and underwater superoleophobic membrane for oil/water emulsion separation and organic dye degradation. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117804] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Jipeng Qi, Wang C, Sun J, Li S. TiO2 Assisted Photocatalytic Decomposition of 2-Chloronaphthalene on Iron Nanoparticles in Aqueous Systems: Synergistic Effect and Intermediate Products. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2019. [DOI: 10.1134/s0036024419080119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Reduced Graphene Oxide–P25 Nanocomposites as Efficient Photocatalysts for Degradation of Bisphenol A in Water. Catalysts 2019. [DOI: 10.3390/catal9070607] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Reduced graphene oxide–titanium dioxide photocatalyst (rGO–TiO2) was successfully synthesized by the hydrothermal method. The rGO–TiO2 was used as photocatalyst for the degradation of bisphenol A (BPA), which is a typical endocrine disruptor of the environment. Characterization of photocatalysts and photocatalytic experiments under different conditions were performed for studying the structure and properties of photocatalysts. The characterization results showed that part of the anatase type TiO2 was converted into rutile type TiO2 after hydrothermal treatment and 1% rGO–P25 had the largest specific surface area (52.174 m2/g). Photocatalytic experiments indicated that 1% rGO–P25 had the best catalytic effect, and the most suitable concentration was 0.5 g/L. When the solution pH was 5.98, the catalyst was the most active. Under visible light, the three photocatalytic mechanisms were ranked as follows: O2•− > •OH > h+. 1% rGO–P25 also had strong photocatalytic activity in the photocatalytic degradation of BPA under sunlight irradiation. 1% rGO–P25 with 0.5 g/L may be a very promising photocatalyst with a variety of light sources, especially under sunlight for practical applications.
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Debnath D, Gupta AK, Ghosal PS. Recent advances in the development of tailored functional materials for the treatment of pesticides in aqueous media: A review. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2018.10.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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16
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Zhao G, Zhang D, Huang Y, Yu J, Jiang X, Jiao F. Highly efficient degradation of 2-chlorophenol and methylene blue with Rb 0.27 WO 3 /NiFe-CLDH composites under visible light irradiation. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2018.06.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Chen Y, Dong Q, Wang L, Guo X, Ai S, Ding H. Graphitic-C3N4 quantum dots decorated {001}-faceted TiO2 nanosheets as a 0D/2D composite with enhanced solar photocatalytic activity. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3561-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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19
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Lin JCT, Sopajaree K, Jitjanesuwan T, Lu MC. Application of visible light on copper-doped titanium dioxide catalyzing degradation of chlorophenols. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2017.09.027] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Inorganic semiconductors-graphene composites in photo(electro)catalysis: Synthetic strategies, interaction mechanisms and applications. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2017. [DOI: 10.1016/j.jphotochemrev.2017.06.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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21
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Sharma A, Lee BK. Growth of TiO 2 nano-wall on activated carbon fibers for enhancing the photocatalytic oxidation of benzene in aqueous phase. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.11.019] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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22
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Zhang S, Xu J, Hu J, Cui C, Liu H. Interfacial Growth of TiO 2-rGO Composite by Pickering Emulsion for Photocatalytic Degradation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:5015-5024. [PMID: 28467095 DOI: 10.1021/acs.langmuir.7b00719] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
A 2D sandwich-like TiO2-rGO composite was fabricated by the Pickering emulsion approach to improve the photocatalytic efficiency. Through an in situ growth of antase-TiO2 nanoparticles on the interface of O/W type GO Pickering emulsion, TiO2 nanoparticles were closely and densely packed on the surface of well-exfoliated rGO sheets; meanwhile, many mesoporous voids acting as the adsorption chamber and microreactor were produced. Evaluated by methylene blue (MB) degradation, its photocatalytic activity was prominent compared with the common TiO2-based photocatalyst, with the rate constants 5 and 3.1 times higher under visible light and xenon lamp, respectively. When we applied it in the photocatalytic degradation of tetracycline hydrochloride (TCH, such as 10 ppm) under the visible light without adding any oxidants, the total removal efficiency was as high as 94% after 40 min. The mechanism of this good photocatalytic efficiency was illustrated by the scavenger trapping tests, which showed that this unique structure of TiO2-rGO composite induced by the Pickering emulsion can significantly enhance the light absorption ability, accelerate the separation rate of electron-hole pairs, increase the adsorption capacity of organic pollutants, and hence improve the photocatalytic efficiency.
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Affiliation(s)
| | - Jian Xu
- Shanghai Institute of Measurement and Testing Technology , 1500 Zhang Heng Road, Shanghai, 201203, China
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Tomašević A, Mijin D, Marinković A, Radišić M, Prlainović N, Đurović-Pejčev R, Gašić S. The photocatalytic degradation of carbofuran and Furadan 35-ST: the influence of inert ingredients. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:13808-13822. [PMID: 28405924 DOI: 10.1007/s11356-017-8949-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 03/27/2017] [Indexed: 06/07/2023]
Abstract
A comparative study on photocatalytic degradation of the pesticide carbofuran and its commercial product Furadan 35-ST in an aqueous suspension of ZnO, irradiated by long-wave light (315-400 nm), is presented in this study. In order to assess the effects of inert ingredients present in the commercial product Furadan 35-ST, non-competitive and competitive adsorption and kinetic studies of carbofuran degradation processes were conducted. A higher photochemical degradation rate was found for pure carbofuran in comparison to a two-component system, carbofuran and single addition of ingredients at appropriate concentrations, and the commercial product Furadan 35-ST. The overall effect of inert ingredients was evaluated from a competitive study using the model system of Furadan 35-ST. The results of a mineralization study, obtained by ion chromatography (IC) and total organic carbon (TOC) analyses, revealed the formation of acetate, oxalate, and formate ions. Photodegradation products of carbofuran, three of them detected for the first time, were identified based on high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) and gas chromatography-mass spectrometry (GC-MS) results, and their photodegradation pathways were proposed.
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Affiliation(s)
- Anđelka Tomašević
- Institute of Pesticides and Environmental Protection, Banatska 31b, P.O. Box 163, Zemun, Belgrade, 11080, Serbia
| | - Dušan Mijin
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, P.O. Box 3503, Belgrade, 11120, Serbia
| | - Aleksandar Marinković
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, P.O. Box 3503, Belgrade, 11120, Serbia
| | - Marina Radišić
- Innovation Center, Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, Belgrade, 11120, Serbia
| | - Nevena Prlainović
- Innovation Center, Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, Belgrade, 11120, Serbia.
| | - Rada Đurović-Pejčev
- Institute of Pesticides and Environmental Protection, Banatska 31b, P.O. Box 163, Zemun, Belgrade, 11080, Serbia
| | - Slavica Gašić
- Institute of Pesticides and Environmental Protection, Banatska 31b, P.O. Box 163, Zemun, Belgrade, 11080, Serbia
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Sharma G, Kumar D, Kumar A, Al-Muhtaseb AH, Pathania D, Naushad M, Mola GT. Revolution from monometallic to trimetallic nanoparticle composites, various synthesis methods and their applications: A review. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 71:1216-1230. [DOI: 10.1016/j.msec.2016.11.002] [Citation(s) in RCA: 137] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 09/18/2016] [Accepted: 11/02/2016] [Indexed: 01/02/2023]
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Goswami K, Ananthakrishnan R. Facile synthesis of nano-Zn/Bi–reduced graphene oxide for enhanced photocatalytic elimination of chlorinated organic pollutants under visible light. NEW J CHEM 2017. [DOI: 10.1039/c7nj00996h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Zn/Bi–RGO co-assembly was synthesized by a simple co-precipitation followed by hydrothermal process, and it exhibited enhanced visible light photocatalytic activity on remediation of chlorophenols.
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Affiliation(s)
- Karan Goswami
- Department of Chemistry
- Green Environmental Materials & Analytical Chemistry Laboratory
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Rajakumar Ananthakrishnan
- Department of Chemistry
- Green Environmental Materials & Analytical Chemistry Laboratory
- Indian Institute of Technology
- Kharagpur 721302
- India
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Oszajca M, Brindell M, Orzeł Ł, Dąbrowski JM, Śpiewak K, Łabuz P, Pacia M, Stochel-Gaudyn A, Macyk W, van Eldik R, Stochel G. Mechanistic studies on versatile metal-assisted hydrogen peroxide activation processes for biomedical and environmental incentives. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.05.013] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Sharma A, Lee BK. Integrated ternary nanocomposite of TiO2/NiO/reduced graphene oxide as a visible light photocatalyst for efficient degradation of o-chlorophenol. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2016; 181:563-573. [PMID: 27423769 DOI: 10.1016/j.jenvman.2016.07.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 05/27/2016] [Accepted: 07/05/2016] [Indexed: 06/06/2023]
Abstract
This study investigated a novel approach for the synthesis of an integrated ternary nanocomposite which could act as a good photo-catalyst under visible light irradiation for the removal of organic pollutants from aqueous environments. The photo-catalyst included nickel oxide (NiO) as a dopant, and reduced graphene oxide (RGO) as a good carbon basal support for enhancement of the photo-catalytic activity of TiO2. Under irradiation with visible light, the ternary nanocomposite (TiO2/NiO-RGO) system generates e(-)/h(+) pairs, and then reacts with H2O and O2(-) molecules to produce oxy-radicals which can be used for the mineralization of o-chlorophenol from aqueous solution. The characteristic of all photo-catalysts were investigated by UV-Vis analysis, with surface area and pore size measurements by Brunauer-Emmett-Teller (BET), crystallinity by X-ray diffraction (XRD), elemental composition by X-ray photoelectron spectroscopy (XPS), and morphology by scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM/EDX). The functional groups were measured by Fourier transform infrared (FT-IR) spectroscopy before and after o-chlorophenol degradation. TiO2/NiO-RGO was capable of achieving 88.4% photo-degradation of 100 mg/L o-chlorophenol (100 mL) within 8 h with addition of 0.01% H2O2 under visible light irradiation at pH 6.5. The photo-degradation followed a pseudo-first-order reaction. The TiO2/NiO-RGO nanocomposite retained its high removal efficiency, even after four photo-catalytic cycles.
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Affiliation(s)
- Ajit Sharma
- Department of Civil and Environmental Engineering, University of Ulsan, Nam-gu, Daehak ro 93, Ulsan, 680-749, Republic of Korea
| | - Byeong-Kyu Lee
- Department of Civil and Environmental Engineering, University of Ulsan, Nam-gu, Daehak ro 93, Ulsan, 680-749, Republic of Korea.
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28
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Microporous carbon fibers prepared from cellulose as efficient sorbents for removal of chlorinated phenols. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2637-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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