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Pipil H, Yadav S, Kumar S, Haritash AK. Synergistic potency of ultrasound and solar energy towards oxidation of 2,4-dichlorophenol: a chemometrics approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:8186-8209. [PMID: 38175510 DOI: 10.1007/s11356-023-31598-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 12/13/2023] [Indexed: 01/05/2024]
Abstract
Industrial units based on chemical processes-the textile and paper industries-are major sources of chlorophenols in the environment, and chlorophenolic compounds persist within the environment for a long time with high toxicity levels. The photo-assisted Fenton's and photocatalysis processes were investigated for the degradation of chlorophenols in the present study. Response surface methodology was employed to get optimised conditions for photocatalysis and photo-Fenton process-governing factors, thus, yielding a profound removal efficiency. Under optimised conditions, with a photocatalyst dose of 0.2 g/L, oxidant concentration of 10.0 mM and pH 5.0, complete removal of 2,4-dichlorophenol (2,4-DCP) was observed in 210 minutes in photocatalytic treatment. In the case of the photo-Fenton process, at an H2O2 dose of 5.0 mM and Fe2+ concentration of 0.5 mM, the organic pollutant was eliminated within 5 minutes of reaction time under acidic conditions (pH 3.0). The RSM model reported the perfect fit of experimental data with the predicted response. Among different isotherm models, the Langmuir isotherm was the best fit. The process followed pseudo-first order rate kinetics among various kinetics models. For the obtained optimised conditions, sonication and solar energy-driven processes were incorporated to study enhanced mineralisation. The solar-assisted Fenton process reported maximum mineralisation (90%) and cost-effective ($0.01/litre for 100 mg/L 2,4-DCP) treatment among different hybrid oxidation processes. The work provides insight into harnessing the naturally available solar energy, reducing the overall treatment cost and opting for a sustainable treatment method.
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Affiliation(s)
- Harsh Pipil
- Department of Environmental Engineering, Delhi Technological University, Delhi, 110042, India
| | - Shivani Yadav
- Department of Environmental Engineering, Delhi Technological University, Delhi, 110042, India.
| | - Sunil Kumar
- Research and Development, Solaris Chemtech Industries, Bhuj, Gujarat, 370001, India
| | - Anil Kumar Haritash
- Department of Environmental Engineering, Delhi Technological University, Delhi, 110042, India
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ZnO Nano-swirlings for Azo Dye AR183 photocatalytic degradation and antimycotic activity. Sci Rep 2022; 12:14023. [PMID: 35982131 PMCID: PMC9388521 DOI: 10.1038/s41598-022-17924-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 08/02/2022] [Indexed: 11/09/2022] Open
Abstract
The sol-gel technique was used to fabricate ZnO Nano-swirlings (ZNsw) at a predetermined agitation rate (of >> 1900 rpm), with around 21.94 gm of zinc acetate dihydrate and 0.2 g cetyltrimethylammoniumbromide (CTAB) and a cationic surfactant (drop-wise). The impact of the predetermined agitation condition on the molecular size and morphology of ZNsw is examined, and the outcomes are dissected by useful characterization tools and techniques viz. XRD, SEM embedded with EDS, TEM, FT-IR and UV-visible. The SEM and TEM results suggest that the product formed into a big cluster of adequate ZNsw, containing a significant quantity of folded long thread-lengths. Each group indicated a fair amount of the volume of these lengths. The photocatalytic process of ZNsw was carried out as a result of the irradiation time due to the deterioration of Azo Dye AR183, resulting in approximately 79 percent dye discoloration following an 80-min UV light irradiation in the presence of ZNsw. Additionally, the synthesized ZNsw was tested for antagonistic activity, and the growth hindrance of two plant pathogenic fungal strains found. Per cent inhibition in growth of Rhizoctonia solani and Alternaria alternata were observed in response to ZNsw.
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Mansourian R, Mousavi SM, Alizadeh S, Sabbaghi S. CeO
2
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TiO
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SiO
2
nanocatalyst for the photocatalytic and sonophotocatalytic degradation of chlorpyrifos. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.24157] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Reza Mansourian
- Department of Chemical and Petroleum Engineering School of Chemical and Petroleum Engineering, Shiraz University Shiraz Iran
| | - Seyedeh Maryam Mousavi
- Department of Chemical and Petroleum Engineering School of Chemical and Petroleum Engineering, Shiraz University Shiraz Iran
| | - Shahin Alizadeh
- Department of Chemical Engineering Tarbiat Modares University Tehran Iran
| | - Samad Sabbaghi
- Department of Advanced Technologies Nano Chemical Engineering, Shiraz University Shiraz Iran
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Tu D, Liao H, Deng Q. Synthesis of BN/g-C3N4as Visible-light-driven Photocatalysts for Degradation of Different Organic Pollutants. ChemistrySelect 2018. [DOI: 10.1002/slct.201800921] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Dan Tu
- School of materials science and engineering; Southwest University of Science and Technology; Mianyang 621010 China
| | - Huiwei Liao
- School of materials science and engineering; Southwest University of Science and Technology; Mianyang 621010 China
| | - Qiulin Deng
- School of materials science and engineering; Southwest University of Science and Technology; Mianyang 621010 China
- Jiangsu Provincial Key Laboratory of Palygorskite; Science and Applied Technology; Huaiyin Institute of Technology; Huaian 223003 China
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Simultaneous H2 production and pollutant removal from biodiesel wastewater by photocatalytic oxidation with different crystal structure TiO2 photocatalysts. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.06.041] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Magnetic Solid-Phase Extraction and Ionic Liquid Dispersive Liquid–Liquid Microextraction Coupled with High-Performance Liquid Chromatography for the Determination of Hexachlorophene in Cosmetics. Chromatographia 2017. [DOI: 10.1007/s10337-017-3283-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Jiang Y, Jin Z, Chen C, Duan W, Liu B, Chen X, Yang F, Guo J. Cerium-doped mesoporous-assembled SiO2/P25 nanocomposites with innovative visible-light sensitivity for the photocatalytic degradation of organic dyes. RSC Adv 2017. [DOI: 10.1039/c7ra00191f] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Photocatalytic mechanism for the photodegradation of organic dyes over a Ce–SiO2/P25 catalyst under visible light.
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Affiliation(s)
- Yan Jiang
- Department of Chemistry
- School of Science
- Beijing Jiaotong University
- Beijing 100044
- China
| | - Zheng Jin
- Department of Chemistry
- School of Science
- Beijing Jiaotong University
- Beijing 100044
- China
| | - Chen Chen
- Department of Chemistry
- School of Science
- Beijing Jiaotong University
- Beijing 100044
- China
| | - Wubiao Duan
- Department of Chemistry
- School of Science
- Beijing Jiaotong University
- Beijing 100044
- China
| | - Bo Liu
- Department of Chemistry
- School of Science
- Beijing Jiaotong University
- Beijing 100044
- China
| | - Xidong Chen
- Department of Chemistry
- School of Science
- Beijing Jiaotong University
- Beijing 100044
- China
| | - Feihua Yang
- State Key Laboratory of Solid Wastes Resource Utilization and Energy Saving Building Materials
- Beijing Building Materials Academy of Sciences Research
- Beijing 100041
- China
| | - Jianping Guo
- State Key Laboratory of Solid Wastes Resource Utilization and Energy Saving Building Materials
- Beijing Building Materials Academy of Sciences Research
- Beijing 100041
- China
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Meenakshi G, Sivasamy A. Synthesis and characterization of zinc oxide nanorods and its photocatalytic activities towards degradation of 2,4-D. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 135:243-251. [PMID: 27744194 DOI: 10.1016/j.ecoenv.2016.10.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 10/03/2016] [Accepted: 10/06/2016] [Indexed: 06/06/2023]
Abstract
Semiconductor zinc oxide nanorods (NRZnO) were prepared by sol-gel technique using zinc acetate as the precursor and ammonia as the precipitating agent. The prepared photocatalyst were characterized by X-ray diffraction (XRD), Fourier Transform Infrared (FTIR), UV-Visible diffuse reflectance spectroscopy (UV-Vis-DRS), X-ray photoelectron spectroscopy (XPS), Field Emission-Scanning Electron Microscopy (FE-SEM), Atomic Force Microscopy (AFM), High Resolution-Tunneling Microscope (HR-TEM), Brunauer, Emmett and Teller (BET) and electron paramagnetic resonance spectroscopy (EPR) analysis. Particle size of the prepared photocatalyst was established by XRD and FE-SEM analysis. The morphology and the formation of uniform NRZnO was controlled by the temperature, entire concentration of precursors, duration of aging process. High surface roughness and porosity confirmed by AFM analysis. Band gap energy of the synthesized photocatalyst (3.2eV) was determined by using diffuse reflectance spectroscopy. The in-situ production of OH radicals by the prepared photocatalyst was confirmed by electron paramagnetic resonance spectroscopy (EPR) spin trapping technique. The photocatalytic activity of prepared NRZnO was evaluated by photo degradation of 2, 4-dichlorophenoxyacetic acid (2, 4-D) under UV and visible light irradiations. Experimental parameter such as effect of pH, catalyst dosage, initial 2, 4- D concentrations and addition of different electrolytes on the degradation of 2, 4-D was also studied in detail. Neutral pH was found to be the optimum and catalyst dosage of 30mg/10ml resulted in higher percentage of degradation. The photo degraded samples were analyzed by chemical oxygen demand (COD) analysis, UV-Visible spectroscopy. Reusability of the prepared photocatalyst was tested upto three cycles without affecting its performance. The experimental shown the rate of degradation follows pseudo-first order rate kinetics with respect to 2, 4 D.
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Affiliation(s)
- G Meenakshi
- Chemical Engineering Area, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India
| | - A Sivasamy
- Chemical Engineering Area, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India.
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Ibrahim AA, Kumar R, Umar A, Kim S, Bumajdad A, Ansari Z, Baskoutas S. Cauliflower-shaped ZnO nanomaterials for electrochemical sensing and photocatalytic applications. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.10.199] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Barik AJ, Gogate PR. Degradation of 4-chloro 2-aminophenol using combined strategies based on ultrasound, photolysis and ozone. ULTRASONICS SONOCHEMISTRY 2016; 28:90-99. [PMID: 26384887 DOI: 10.1016/j.ultsonch.2015.07.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 06/30/2015] [Accepted: 07/01/2015] [Indexed: 06/05/2023]
Abstract
The present work investigates the degradation of 4-chloro 2-aminophenol (4C2AP), a highly toxic organic compound, using ultrasonic reactors and combination of ultrasound with photolysis and ozonation for the first time. Two types of ultrasonic reactors viz. ultrasonic horn and ultrasonic bath operating at frequency of 20 kHz and 36 kHz respectively have been used in the work. The effect of initial pH, temperature and power dissipation of the ultrasonic horn on the degradation rate has been investigated. The established optimum parameters of initial pH as 6 (natural pH of the aqueous solution) and temperature as 30 ± 2°C were then used in the degradation studies using the combined approaches. Kinetic study revealed that degradation of 4C2AP followed first order kinetics for all the treatment approaches investigated in the present work. It has been established that US+UV+O3 combined process was the most promising method giving maximum degradation of 4C2AP in both ultrasonic horn (complete removal) and bath (89.9%) with synergistic index as 1.98 and 1.29 respectively. The cavitational yield of ultrasonic bath was found to be eighteen times higher as compared to ultrasonic horn implying that configurations with higher overall areas of transducers would be better selection for large scale treatment. Overall, the work has clearly demonstrated that combined approaches could synergistically remove the toxic pollutant (4C2AP).
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Affiliation(s)
- Arati J Barik
- Chemical Engineering Department, Institute of Chemical Technology, Matunga, Mumbai 400 019, India
| | - Parag R Gogate
- Chemical Engineering Department, Institute of Chemical Technology, Matunga, Mumbai 400 019, India.
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Umar A, Kumar R, Akhtar M, Kumar G, Kim S. Growth and properties of well-crystalline cerium oxide (CeO2) nanoflakes for environmental and sensor applications. J Colloid Interface Sci 2015; 454:61-8. [DOI: 10.1016/j.jcis.2015.04.055] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 04/20/2015] [Accepted: 04/26/2015] [Indexed: 11/28/2022]
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Lamba R, Umar A, Mehta S, Kumar Kansal S. Well-crystalline porous ZnO–SnO2 nanosheets: An effective visible-light driven photocatalyst and highly sensitive smart sensor material. Talanta 2015; 131:490-8. [DOI: 10.1016/j.talanta.2014.07.096] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 07/29/2014] [Accepted: 07/31/2014] [Indexed: 11/16/2022]
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13
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Mukherjee D, Barghi S, Ray AK. Degradation of methyl orange by TiO2/polymeric film photocatalyst. CAN J CHEM ENG 2014. [DOI: 10.1002/cjce.22028] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Debjani Mukherjee
- Department of Chemical and Biochemical Engineering; University of Western Ontario; London ON, Canada N6A5B9
| | - Shahzad Barghi
- Department of Chemical and Biochemical Engineering; University of Western Ontario; London ON, Canada N6A5B9
| | - Ajay K. Ray
- Department of Chemical and Biochemical Engineering; University of Western Ontario; London ON, Canada N6A5B9
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Sood S, Mehta SK, Umar A, Kansal SK. The visible light-driven photocatalytic degradation of Alizarin red S using Bi-doped TiO2 nanoparticles. NEW J CHEM 2014. [DOI: 10.1039/c4nj00179f] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ultrasonic assisted sol–gel synthesized Bi-doped TiO2 mesoporous nanoparticles with a good crystallinity and high surface area were prepared. The 1% Bi-doped TiO2 catalyst showed the highest photocatalytic activity under visible light.
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Affiliation(s)
- Swati Sood
- Department of Chemistry
- Panjab University
- Chandigarh-160014, India
| | | | - Ahmad Umar
- Department of Chemistry
- College of Science and Arts
- Najran University
- Najran-11001, Kingdom of Saudi Arabia
- Promising Centre for Sensors and Electronic Devices (PCSED)
| | - Sushil Kumar Kansal
- Dr. S.S.B University Institute of Chemical Engineering & Technology
- Panjab University
- Chandigarh-160014, India
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Dhir A, Prakash NT, Sud D. Coupling of solar-assisted advanced oxidative and biological treatment for degradation of agro-residue-based soda bleaching effluent. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2012; 19:3906-3913. [PMID: 22645007 DOI: 10.1007/s11356-012-0976-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2011] [Accepted: 05/09/2012] [Indexed: 06/01/2023]
Abstract
This study evaluates the effect of integrated solar-assisted advanced oxidation process (AOP) and biological treatment on the extent of degradation of effluents from chlorination (C) and first alkaline extraction (E(1)) stages of soda pulp bleaching in agro-residue-based pulp and paper mill. Biodegradation of the effluents was attempted in suspended mode using activated sludge from the functional pulp and paper industry effluent treatment plant acclimatized to effluents in question. The photocatalytic treatment was employed using zinc oxide (ZnO) in slurry mode for decontamination of effluents in a batch manner and the degradation was evaluated in terms of reduction in chemical oxygen demand. The biological treatment (24 h) of C and E(1) effluent resulted in 30 and 57 % of degradation, respectively. Solar-induced AOP of C and E(1) effluents resulted in 53 and 43 % degradation under optimized conditions (2.5 g L(-1) ZnO at pH 8.0) after 6 h of exposure. For C effluent, a short duration of solar/ZnO (1 h) prior to biological treatment reduced the time required at biological step from 24 to 12 h for almost same extent (92 %) of degradation. However, sequential biological treatment (24 h) followed by solar/ZnO (2 h) resulted in 85.5 % degradation. In contrast, in the case of E(1) effluent, sequential biological (24 h)-solar/ZnO (2 h) system effectively degrades effluent to 95.4 % as compared to 84.8 % degradation achieved in solar/ZnO (2 h)-biological treatment (24 h) system. In the present study, the sequencing of photocatalysis with the biological treatment is observably efficient and technically viable process for the complete mineralization of the effluents.
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Affiliation(s)
- Amit Dhir
- Department of Biotechnology and Environmental Sciences, Thapar University, Patiala, 147004, Punjab, India.
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Memarain HR, Ranjbar M. Substituent effect in photocatalytic oxidation of 2-oxo-1,2,3,4-tetrahydropyrimidines using TiO2 nanoparticles. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcata.2011.12.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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