1
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Solanki S, Sinha S, Seth CS, Tyagi S, Goyal A, Singh R. Enhanced adsorption of Bismark Brown R dye by chitosan conjugated magnetic pectin loaded filter mud: A comprehensive study on modeling and mechanisms. Int J Biol Macromol 2024; 270:131987. [PMID: 38705337 DOI: 10.1016/j.ijbiomac.2024.131987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 04/11/2024] [Accepted: 04/28/2024] [Indexed: 05/07/2024]
Abstract
Herein, a polymer-based bioadsorbent was prepared by cross-linking chitosan to filter mud and magnetic pectin (Ch-mPC@FM) for the removal of Bismark Brown R dye (BB-R) from wastewater. Morphological characterization analysis indicated that Ch-mPC@FM had a higher surface area and better pore structure than its components. The Artificial Neuron Network (ANN) and Adaptive Neuro-Fuzzy Inference System (ANFIS) were employed to evaluate the simulation and prediction of the adsorption process based on input variables like temperature, pH, dosage, initial BB-R dye concentration, and contact time. ANFIS and ANN demonstrated significant modeling and predictive accuracy, with R2 > 0.93 and R2 > 0.96, and root mean square error < 0.023 and <0.020, respectively. The Langmuir isotherm and the pseudo-second-order kinetic models provided the best fits to the equilibrium and kinetic data. The thermodynamic assessment showed spontaneous and endothermic adsorption with average entropy and enthalpy changes of 119.32 kJ mol-1 K and 403.47 kJ mol-1, respectively. The study of BB-R dye adsorption on Ch-mPC@FM revealed multiple mechanisms, including electrostatic, complexation, pore filling, cation-π interaction, hydrogen bonding, and π-π interactions. The approximate production cost of US$ 5.809 Kg-1 and excellent adsorption capability render Ch-mPC@FM an inexpensive, pragmatic, and ecologically safe bioadsorbent for BB-R dye removal from wastewater.
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Affiliation(s)
- Swati Solanki
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida 201313, India
| | - Surbhi Sinha
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida 201313, India.
| | | | - Shivanshi Tyagi
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida 201313, India
| | - Aarushi Goyal
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida 201313, India
| | - Rachana Singh
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida 201313, India.
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2
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Mansee AH, Ebrahim AM, Koreish EA. Sustainable indigenous bio-mixture for restoration the soil point source pollution with special reference to chlorpyrifos. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:363. [PMID: 38478213 PMCID: PMC10937809 DOI: 10.1007/s10661-024-12494-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 02/24/2024] [Indexed: 03/17/2024]
Abstract
Improper pesticide handling is the main cause of contamination of the environment in agricultural systems. This could be caused by leakage of spraying liquid, leftovers, and inappropriate washing of spraying equipment. This study assessed the ability of suggested biomixture modules for remediate repetitive cycles of high chlorpyrifos doses. In three consecutive treatments, four tested modules were contaminated with 160 µg g-1 chlorpyrifos. Chlorpyrifos residues, dehydrogenase activity, and microbial respiration were continuously monitored for 22 weeks. Six bacterial consortia were isolated at the end of the experiment from four treated modules (B+3, BF+3, S+3, and SF+3) and two from untreated modules (B and S). The isolated consortium efficiency in degrading chlorpyrifos was studied. The results revealed that the best chlorpyrifos removal efficiency was achieved when using the stimulated biomixture module (BF) recorded 98%, 100%, and 89%, at the end of three chlorpyrifos treatments, respectively. Such removal efficiency was compatible with the biological activity results of the tested modules: dehydrogenase activity and microbial respiration. There was no difference in the efficiency among the S, B, and BF+3 consortia. The results presented here demonstrate that the combination of vermicompost, wheat straw, soil, and NPK (stimulated biomixture module) can successfully reduce the risk of a point source of pesticide pollution.
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Affiliation(s)
- Ayman H Mansee
- Department of Pesticide Chemistry & Technology, Faculty of Agriculture, Alexandria University, Alexandria, Egypt.
| | - Amal M Ebrahim
- Department of Soil & Water Science, Faculty of Agriculture, Alexandria University, Alexandria, Egypt
| | - Essam A Koreish
- Department of Soil & Water Science, Faculty of Agriculture, Alexandria University, Alexandria, Egypt
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3
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Moharem ML, Hamadeen HM, Mesalem MO, Elkhatib EA. Potential use of nanoparticles produced from byproducts of drinking water industry in stabilizing arsenic in alkaline-contaminated soils. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:6727-6743. [PMID: 37380922 PMCID: PMC10403416 DOI: 10.1007/s10653-023-01663-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 06/12/2023] [Indexed: 06/30/2023]
Abstract
The stabilization of heavy metals in soils is considered a cost-effective and environmentally sustainable remediation approach. In the current study, the applicability of water treatment residual nanoparticles (nWTRs) with the particle size ranged from 45 to 96 nm was evaluated for its efficacy in reducing arsenic mobility in clayey and sandy contaminated alkaline soils. Sorption isotherms, kinetics, speciation and fractionation studies were performed. Sorption equilibrium and kinetics studies revealed that As sorption by nWTRs-amended soils followed Langmuir and second-order/power function models. The maximum As sorption capacity (qmax) of Langmuir increased up to 21- and 15-folds in clayey and sandy soils, respectively, as a result of nWTRs application at 0.3% rate. A drastic reduction in non-residual (NORS) As fraction from 80.2 and 51.49% to 11.25 and 14.42% for clayey and sandy soils, respectively, at 0.3% nWTRs application rate was observed, whereas residual (RS) As fraction in both studied soils strongly increased following nWTRs application. The decline in percentage of As mobile form (arsenious acid) in both soils after nWTRs application indicated the strong effect of nWTRs on As immobilization in contaminated soils. Furthermore, Fourier transmission infrared spectroscopy analysis suggested reaction mechanisms between As and the surfaces of amorphous Fe and Al oxides of nWTRs through OH groups. This study highlights the effective management approach of using nWTRs as soil amendment to stabilize As in contaminated alkaline soils.
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Affiliation(s)
- Mohamed L Moharem
- Regional Center for Food and Feed, Agricultural Research Center, Alexandria, Egypt
| | - Hala M Hamadeen
- Departments of Soil and Water Sciences, College of Agriculture (Elshatby), Alexandria University, Alexandria, 21545, Egypt.
| | - Mohamed O Mesalem
- Departments of Soil and Water Sciences, College of Agriculture (Elshatby), Alexandria University, Alexandria, 21545, Egypt
| | - Elsayed A Elkhatib
- Departments of Soil and Water Sciences, College of Agriculture (Elshatby), Alexandria University, Alexandria, 21545, Egypt.
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4
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Joshi V, Jindal MK, Sar SK. Approaching a discussion on the detachment of chlorpyrifos in contaminated water using different leaves and peels as bio adsorbents. Sci Rep 2023; 13:11186. [PMID: 37433845 DOI: 10.1038/s41598-023-38471-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 07/08/2023] [Indexed: 07/13/2023] Open
Abstract
The emerging contaminant chlorpyrifos, an insecticide, is generally used in agricultural fields to control termites, ants, and mosquitoes for the proper growth of feed and food crops. Chlorpyrifos reaches water sources for multiple reasons, and people who use water from nearby sources is exposed to chlorpyrifos. Due to its overuse in modern agriculture, the level of chlorpyrifos in water has drastically grown. The present study aims to address the problem arising from the utilization of chlorpyrifos-contaminated water. Natural bioadsorbents Bael, Cauliflower, Guava leaves Watermelon, and lemon peel were employed to remove chlorpyrifos from contaminated water under specific conditions of various factors, such as initial adsorbate concentration, dose of bioadsorbent, contact time, pH, and temperature. Maximum removal efficiency of 77% was obtained with lemon peel. The maximum adsorption capacity (qe) was 6.37 mg g-1. The kinetic experiments revealed that the pseudo second order model (R2 = 0.997) provided a better explanation of the mechanism of sorption. The isotherm showed that chlorpyrifos adsorbed in lemon peel in a monolayer and was best suited by the Langmuir model (R2 = 0.993). The adsorption process was exothermic and spontaneous, according to thermodynamic data.
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Affiliation(s)
- Varsha Joshi
- Department of Chemistry, Government V.Y.T. PG Autonomous College, Durg, Chhattisgarh, India
| | - Manoj Kumar Jindal
- Department of Applied Chemistry, Bhilai Institute of Technology, Durg, 490001, India.
- Divecha Centre for Climate Change, Indian Institute of Science, Bangalore, India.
| | - Santosh Kumar Sar
- Department of Applied Chemistry, Bhilai Institute of Technology, Durg, 490001, India
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5
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Quilez-Molina AI, Barroso-Solares S, Hurtado-García V, Heredia-Guerrero JA, Rodriguez-Mendez ML, Rodríguez-Pérez MÁ, Pinto J. Encapsulation of Copper Nanoparticles in Electrospun Nanofibers for Sustainable Removal of Pesticides. ACS APPLIED MATERIALS & INTERFACES 2023; 15:20385-20397. [PMID: 37061951 PMCID: PMC10141258 DOI: 10.1021/acsami.3c00849] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 04/10/2023] [Indexed: 06/19/2023]
Abstract
The excellent catalytic properties of copper nanoparticles (CuNPs) for the degradation of the highly toxic and recalcitrant chlorpyrifos pesticide are widely known. However, CuNPs generally present low stability caused by their high sensitivity to oxidation, which leads to a change of the catalytic response over time. In the current work, the immobilization of CuNPs into a polycaprolactone (PCL) matrix via electrospinning was demonstrated to be a very effective method to retard air and solvent oxidation and to ensure constant catalytic activity in the long term. CuNPs were successfully anchored into PCL electrospun fibers in the form of Cu2O at different concentrations (from 1.25 wt % to 5 wt % with respect to the PCL), with no signs of loss by leaching out. The PCL mats loaded with 2.5 wt % Cu (PCL-2.5Cu) almost halved the initial concentration of pesticide (40 mg/L) after 96 h. This process was performed in two unprompted and continuous steps that consisted of adsorption, followed by degradation. Interestingly, the degradation process was independent of the light conditions (i.e., not photocatalytic), expanding the application environments (e.g., groundwaters). Moreover, the PCL-2.5Cu composite presents high reusability, retaining the high elimination capability for at least five cycles and eliminating a total of 100 mg/L of chlorpyrifos, without exhibiting any sign of morphological damages.
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Affiliation(s)
- Ana Isabel Quilez-Molina
- Cellular
Materials Laboratory (CellMat), Condensed Matter Physics, Crystallography,
and Mineralogy Department, Faculty of Science, University of Valladolid, Campus Miguel Delibes, Paseo de Belén n° 7, Valladolid 47011, Spain
- BioEcoUVA
Research Institute on Bioeconomy, Calle Dr. Mergelina, Valladolid 47011, Spain
| | - Suset Barroso-Solares
- Cellular
Materials Laboratory (CellMat), Condensed Matter Physics, Crystallography,
and Mineralogy Department, Faculty of Science, University of Valladolid, Campus Miguel Delibes, Paseo de Belén n° 7, Valladolid 47011, Spain
- BioEcoUVA
Research Institute on Bioeconomy, Calle Dr. Mergelina, Valladolid 47011, Spain
- Archaeological
and Historical Materials (AHMAT) Research Group, Condensed Matter
Physics, Crystallography, and Mineralogy Department, Faculty of Science, University of Valladolid, Campus Miguel Delibes, Paseo de Belén n° 7, Valladolid 47011, Spain
| | - Violeta Hurtado-García
- Cellular
Materials Laboratory (CellMat), Condensed Matter Physics, Crystallography,
and Mineralogy Department, Faculty of Science, University of Valladolid, Campus Miguel Delibes, Paseo de Belén n° 7, Valladolid 47011, Spain
- Archaeological
and Historical Materials (AHMAT) Research Group, Condensed Matter
Physics, Crystallography, and Mineralogy Department, Faculty of Science, University of Valladolid, Campus Miguel Delibes, Paseo de Belén n° 7, Valladolid 47011, Spain
| | - José Alejandro Heredia-Guerrero
- Instituto
de Hortofruticultura Subtropical y Mediterránea “La
Mayora”, Universidad de Málaga-Consejo
Superior de Investigaciones Científicas (IHSM, UMA-CSIC), Bulevar Louis Pasteur 49, Málaga 29010, Spain
| | - María Luz Rodriguez-Mendez
- BioEcoUVA
Research Institute on Bioeconomy, Calle Dr. Mergelina, Valladolid 47011, Spain
- Group
UVaSens, Escuela de Ingenierías Industriales, Universidad de Valladolid, Paseo del Cauce, 59, Valladolid 47011, Spain
| | - Miguel Ángel Rodríguez-Pérez
- Cellular
Materials Laboratory (CellMat), Condensed Matter Physics, Crystallography,
and Mineralogy Department, Faculty of Science, University of Valladolid, Campus Miguel Delibes, Paseo de Belén n° 7, Valladolid 47011, Spain
- BioEcoUVA
Research Institute on Bioeconomy, Calle Dr. Mergelina, Valladolid 47011, Spain
| | - Javier Pinto
- Cellular
Materials Laboratory (CellMat), Condensed Matter Physics, Crystallography,
and Mineralogy Department, Faculty of Science, University of Valladolid, Campus Miguel Delibes, Paseo de Belén n° 7, Valladolid 47011, Spain
- BioEcoUVA
Research Institute on Bioeconomy, Calle Dr. Mergelina, Valladolid 47011, Spain
- Archaeological
and Historical Materials (AHMAT) Research Group, Condensed Matter
Physics, Crystallography, and Mineralogy Department, Faculty of Science, University of Valladolid, Campus Miguel Delibes, Paseo de Belén n° 7, Valladolid 47011, Spain
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6
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Barzegarzadeh M, Amini-Fazl MS, Sohrabi N. Ultrasound-assisted adsorption of chlorpyrifos from aqueous solutions using magnetic chitosan/graphene quantum dot‑iron oxide nanocomposite hydrogel beads in batch adsorption column and fixed bed. Int J Biol Macromol 2023; 242:124587. [PMID: 37100318 DOI: 10.1016/j.ijbiomac.2023.124587] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 04/12/2023] [Accepted: 04/20/2023] [Indexed: 04/28/2023]
Abstract
Chlorpyrifos is a hazardous material that pollutes the environment and also poses risks to human health. Thus, it is necessary to remove chlorpyrifos from aqueous media. In this study, chitosan-based hydrogel beads with different content of iron oxide-graphene quantum dots were synthesized and used for the ultrasonic-assisted removal of chlorpyrifos from wastewater. The results of batch adsorption experiments showed that among the hydrogel beads-based nanocomposites, the chitosan/graphene quantum dot‑iron oxide (10) indicated a higher adsorption efficiency of about 99.997 % at optimum conditions of the response surface method. Fitting the experimental equilibrium data to different models shows that the adsorption of chlorpyrifos is well described by the Jossens, Avrami, and double exponential models. Furthermore, for the first time, the study of the ultrasonic effect on the removal performance of chlorpyrifos showed that the ultrasonic-assisted removal of chlorpyrifos significantly reduces the equilibration time. It is expected that the ultrasonic-assisted removal strategy can be a new method to develop highly efficient adsorbents for rapid removal of pollutants in wastewater. Also, the results of the fixed bed adsorption column showed that the breakthrough time and exhausting time of chitosan/graphene quantum dot‑iron oxide (10) were equal to 485 and 1099 min, respectively. And finally, the adsorption-desorption study showed the successful reuse of adsorbent for chlorpyrifos adsorption in seven runs without a significant decrease in adsorption efficiency. Therefore, it can be said that the adsorbent has a high economic and functional potential for industrial applications.
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Affiliation(s)
- Mehdi Barzegarzadeh
- Advanced Polymer Material Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Mohammad Sadegh Amini-Fazl
- Advanced Polymer Material Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.
| | - Negin Sohrabi
- Advanced Polymer Material Research Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
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7
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Sharma P, Jatrana A, Mondal S, Maan S, Kumar V. A Promising HKUST‐1@SiO
2
Composite for the Effective Adsorption of Chlorpyriphos from Aqueous Medium. ChemistrySelect 2023. [DOI: 10.1002/slct.202204312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Affiliation(s)
- Prachi Sharma
- Department of Chemistry Chaudhary Charan Singh Haryana Agricultural University Hisar Haryana 125001
| | - Anushree Jatrana
- Department of Chemistry Chaudhary Charan Singh Haryana Agricultural University Hisar Haryana 125001
| | - Sanchit Mondal
- Department of Chemistry Chaudhary Charan Singh Haryana Agricultural University Hisar Haryana 125001
| | - Sheetal Maan
- Department of Chemistry Chaudhary Charan Singh Haryana Agricultural University Hisar Haryana 125001
| | - Vinay Kumar
- Department of Physics Chaudhary Charan Singh Haryana Agricultural University Hisar Haryana 125001
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8
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Bose S, Senthil Kumar P, Rangasamy G, Prasannamedha G, Kanmani S. A review on the applicability of adsorption techniques for remediation of recalcitrant pesticides. CHEMOSPHERE 2023; 313:137481. [PMID: 36529165 DOI: 10.1016/j.chemosphere.2022.137481] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/22/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
Pesticide has revolutionised the agricultural industry by reducing yield losses and by enhancing productivity. But indiscriminate usage of such chemicals can negatively impact human health and ecosystem balance as certain pesticides can be recalcitrant in nature. Out of some of the suggested sustainable techniques to remove the pesticide load from the environment, adsorption is found to be highly efficient and can also be implemented on a large scale. It has been observed that natural adsorption that takes place after the application of the pesticide is not enough to reduce the pesticide load, hence, adsorbents like activated carbon, plant-based adsorbents, agricultural by-products, silica materials, polymeric adsorbents, metal organic framework etc are being experimented upon. It is becoming increasingly important to choose adsorbents which will not leave any secondary pollutant after treatment and the cost of production of such adsorbent should be feasible. In this review paper, it has been established that certain adsorbent like biochar, hydrochar, resin, metal organic framework etc can efficiently remove pesticides namely chlorpyrifos, diazinon, 2,4-Dichlorophenoxyacetic Acid, atrazine, fipronil, imidacloprid etc. The mechanism of adsorption, thermodynamics and kinetic part have been discussed in detail with respect to the pesticide and adsorbent under discussion. The reason behind choosing an adsorbent for the removal of a particular pesticide have also been explained. It is further highly recommended to carry out a cost analysis before implementing an absorbent because inspite of its efficacy, it might not be cost effective to use it for a particular type of pesticide or contaminant.
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Affiliation(s)
- Sanchali Bose
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India.
| | - Gayathri Rangasamy
- Department of Sustainable Engineering, Institute of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | - G Prasannamedha
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India
| | - S Kanmani
- Centre for Environmental Studies, Department of Civil Engineering, Anna University, Chennai, 600025, India
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9
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Ecofriendly nanoparticles derived from water industry byproducts for effective removal of Cu (II) from wastewater: Adsorption isotherms and kinetics. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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10
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Optimization and mechanisms of rapid adsorptive removal of chromium (VI) from wastewater using industrial waste derived nanoparticles. Sci Rep 2022; 12:14174. [PMID: 35986081 PMCID: PMC9391442 DOI: 10.1038/s41598-022-18494-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 08/12/2022] [Indexed: 11/09/2022] Open
Abstract
AbstractNowadays, the existence of metal ions in the environment like chromium (VI) is of significant worry because of its high toxicity to many life forms. Therefore, in this study, an inexpensive and eco-friendly nano-adsorbent was produced from the waste of drinking water industry for effective elimination of Cr (VI) from wastewater. The mineralogical and morphological characterization and compositions of the bulk and nano- adsorbents were performed. The adsorption capabilities of nWTRs for Cr(VI) under different experimental conditions of adsorbent dosage, time, Cr (VI) concentration, solution pH, and competitive ions were investigated. The nWTRs adsorbent exhibits very rapid adsorption potential (92%) for Cr (VI) within the first 15 min. Langmuir model showed high predictive capability for describing Cr (VI) sorption equilibrium data. The estimated maximum sorption capacity (qmax) of nWTRs and bWTRs was found to be 40.65 mg g−1 and 2.78 mg g−1 respectively. The sorption kinetics data of Cr (VI) were perfectly fitted to the model of second-order kinetics. High immobilization capability of nWTRs for sorbed Cr (VI) is evident as most of adsorbed Cr (VI) was associated with the residual fraction. The nWTRs efficiency of Cr (VI) removal from wastewater using batch and column techniques were 98.12 and 96.86% respectively. Electrostatic interactions, outer sphere complexation and pore filling are the main mechanisms suggested for binding of Cr(VI) with functional groups of nWTRs. This study demonstrates that the green low-cost nWTRs have the potential to decontaminate industrial wastewater effluents containing Cr (VI).
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11
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Hamadeen HM, Elkhatib EA. New nanostructured activated biochar for effective removal of antibiotic ciprofloxacin from wastewater: Adsorption dynamics and mechanisms. ENVIRONMENTAL RESEARCH 2022; 210:112929. [PMID: 35167852 DOI: 10.1016/j.envres.2022.112929] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 02/05/2022] [Accepted: 02/07/2022] [Indexed: 06/14/2023]
Abstract
Developing green inexpensive and effective adsorbents is critically needed for elimination of antibiotics from contaminated water. The current study assessed the nanostructured activated biochar (nPPAB) derived from pomegranate peels (PP) as a promising sorbent for efficient removal of the antibiotic ciprofloxacin (CIP). The results affirm that the second order and Langmuir models fit well to adsorption kinetics and equilibrium data respectively. The nPPAB adsorption capacity of Langmuir (qmax) for CIP was 142.86 mg g-1 which is 26.85 times greater than that of bulk PP. Hydrogen bonding, π-π interaction, hydrophobic and electrostatic interactions are the dominant mechanisms of CIP adsorption by nPPAB. The efficiency of nPPAB for CIP removal from real wastewater using batch and packed-bed reactor were 89.94 and 84.74% respectively. This study clearly demonstrated the substantial capacity of nPPAB as an ecofriendly, feasible, and in-expensive adsorbent for successful elimination of CIP from wastewater.
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Affiliation(s)
- Hala M Hamadeen
- Department of Soil and Water Sciences, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria, 21545, Egypt
| | - Elsayed A Elkhatib
- Department of Soil and Water Sciences, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria, 21545, Egypt.
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12
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Robust Magnetic γ-Fe2O3/Al–ZnO Adsorbent for Chlorpyriphos Removal in Water. WATER 2022. [DOI: 10.3390/w14071160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this research, the removal of the pesticide chlorpyriphos (CPE) from water by adsorption using a novel adsorbent made of γ-Fe2O3/Al-ZnO nanocomposite was studied. The adsorbent was characterized using Fourier-transformed infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) surface area, and vibrating sample magnetometry (VSM). The main parameters affecting the adsorption process, including the initial pH (2–12), the concentration of pesticide (10–70 ppm), the %Fe2O3 of the adsorbent, and the adsorption time (£60 min), were studied. The results demonstrated that the adsorption of CPE depended on the pH, with a maximum removal of 92.3% achieved at around neutral pH. The adsorption isotherm was modelled and the results showed that the Freundlich model fitted the experimental data better than the Langmuir and Temkin models. The kinetics of adsorption were also studied and modelled using the pseudo-first-order and pseudo-second-order models, with the former being found more suitable. Energy dispersive X-ray (EDX) analysis confirmed the adsorption of CPE on γ-Fe2O3/Al-ZnO, while FTIR analysis suggested that the hydroxyl, N-pyridine, and chloro functional groups governed the adsorption mechanism. Furthermore, VSM analysis revealed that the magnetization saturation of γ-Fe2O3/Al-ZnO nanocomposite, after CPE adsorption, was slightly lower than that of fresh γ-Fe2O3/Al-ZnO but remained adequate for the efficient separation of the adsorbent simply using a magnet. This study demonstrates that binary γ-Fe2O3/Al-ZnO magnetic nanocomposites are effective for the removal of chlorpyriphos and could be highly promising materials for the removal of emerging pollutants in wastewater.
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13
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Tulun Ş, Akgül G, Alver A, Çelebi H. Adaptive neuro-fuzzy interference system modelling for chlorpyrifos removal with walnut shell biochar. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103443] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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14
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Mundekkad D, Kameshwari GV, Karchalkar P, Koti R. The catalytic and ROS-scavenging activities of green synthesized, antiferromagnetic α-Fe 2O 3nanoparticle with a prismatic octahedron morphology from pomegranate rind extract. NANOTECHNOLOGY 2021; 33:045706. [PMID: 34598165 DOI: 10.1088/1361-6528/ac2c45] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 10/01/2021] [Indexed: 06/13/2023]
Abstract
Phenolic compounds (like 4-nitrophenol) and dyes (like methyl orange) are common by-products discharged by many industries as wastes; they are toxic and may induce discomfort and irritation in humans when ingested. Most of these compounds can be made less toxic through catalytic degradation. Metal oxide nanoparticles are found to have high catalytic activity and can degrade toxic phenolic compounds and dyes. In the current study, pomegranate rind extract was used for the green synthesis of iron oxide nanoparticles that exhibited an octahedron morphology revealed by scanning electron microscopy analysis. Energy dispersive x-ray analysis showed 47.96% content of Fe (by weight); high resolution-transmission electron microscopy analysis confirmed that the nanoparticles had a particle size of 22.54 ± 4.13 nm. The particles were further characterized by x-ray diffraction, fourier transform-infrared spectroscopy, vibrating sample magnetometer, and thermogravimetric analysis. The nanoparticle proved to be efficient in reducing 4-nitrophenol and methyl orange. It was also found to be non-toxic towards murine macrophages, RAW 264.7 with good ROS-scavenging potential compared to control.
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Affiliation(s)
- Deepa Mundekkad
- Centre for Nano Biotechnology (CNBT), Vellore Institute of Technology, Tamil Nadu 632014, India
| | - G V Kameshwari
- School of BioSciences and Technology (SBST), Vellore Institute of Technology, Tamil Nadu 632014, India
| | - Poojita Karchalkar
- School of BioSciences and Technology (SBST), Vellore Institute of Technology, Tamil Nadu 632014, India
| | - Rajeshwari Koti
- School of BioSciences and Technology (SBST), Vellore Institute of Technology, Tamil Nadu 632014, India
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