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Mert Y, Ulusoy U. A novel hydrogel composite of chitosan-phytic acid complex with PAAm: Characterization and adsorptive properties for UO 22+and methylene blue. Int J Biol Macromol 2024; 279:135314. [PMID: 39236941 DOI: 10.1016/j.ijbiomac.2024.135314] [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: 07/11/2024] [Revised: 08/25/2024] [Accepted: 09/02/2024] [Indexed: 09/07/2024]
Abstract
The composite of a polyelectrolyte combination of chitosan and phytic acid (CsPa) and its entrapped form in polyacrylamide (PAAmCsPa) were synthesized. The composites were characterized by a number of methods including ATR-FTIR, SEM-EDX, XRD and XPS. The adsorptive properties of CsPa and PAAmCsPa were analyzed and modelled for UO22+ and methylene blue (MB+). The results showed that the composites exhibited physico-chemical properties that were both inherited from the components as well as unique to them. The isotherms of UO22+ and MB+ were L-type Giles isotherms. The adsorption kinetics followed the pseudo-second-order model, in contrast to the Langmuir model, which predicts first-order kinetics for both species. According to the Weber-Morris model, the nature of the adsorption process was ion exchange and/or complex formation for both composites and ions. The thermodynamics showed that the adsorption process was endothermic (ΔH > 0), with increasing entropy (ΔS > 0) and spontaneous (ΔG < 0). The reusability tests of the composites for UO22+ adsorption showed that the composites were substantially reusable for 6 cycles. The composites were selective for UO22+ over MB+ ions, and UO22+ adsorption increased significantly when MB+ adsorbed composites were used. Reproducible measurements demonstrating the storability of the composites were obtained over a period of approximately one year.
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Affiliation(s)
- Yılmaz Mert
- Sivas Cumhuriyet University, Science Faculty, Chemistry Department, Sivas 58140, Turkey
| | - Ulvi Ulusoy
- Sivas Cumhuriyet University, Science Faculty, Chemistry Department, Sivas 58140, Turkey.
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2
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Safdar A, Munir R, Zil-E-Hasnain, Noreen S. Batch and column studies for the removal of basic red-46 dye and textile by using magnesium oxide (MgO), strontium titanium trioxide (SrTiO 3), cobalt- and iron-doped lanthanum chromium trioxide (Co.Fe.LaCrO 3), and cadmium sulfide (CdS)-doped graphene oxide nanocomposites. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-34815-4. [PMID: 39331299 DOI: 10.1007/s11356-024-34815-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 08/22/2024] [Indexed: 09/28/2024]
Abstract
Despite efforts to reduce the risk of toxic chemicals, colors, and dyes being released into the environment from urban and industrial areas, there is still cause for concern. Colored water must be filtered and sterilized before it can be used for irrigation. The utilization of metal oxide and nanocomposite materials in wastewater treatment procedures appears to be a viable option for the future. Therefore, different compounds were doped with graphene oxide to identify the best material for dye removal by the adsorption process. According to recent studies, the ideal conditions for graphene oxide-doped magnesium oxide (GO/MgO) are as follows: pH 10 showed the highest adsorption capacity (qe) at 49.4 mg/g; an adsorbent dosage of 0.01 g/50 mL showed 48.3 mg/g qe; a shaking time of 30 min resulted in 44.2 mg/g qe; an initial dye concentration of 100 mg/L yielded 53.6 mg/g qe; and a temperature of 35 °C gave 49.5 mg/g qe. For graphene oxide-doped strontium titanate (GO/SrTiO3), the optimum conditions were as follows: pH 10 with 45.8 mg/g qe; an adsorbent dose of 0.01 g/50 mL with 40.5 mg/g qe; a shaking time of 30 min with 75 mg/g qe; and a temperature of 35 °C with 44.7 mg/g qe. Graphene oxide-doped cobalt and iron-doped lanthanum chromium titanate (GO/Co.Fe.LaCrO3) showed optimum conditions of pH 9 with 34.2 mg/g qe; an adsorbent dose of 0.01 g/50 mL with 27.5 mg/g qe; a shaking time of 45 min with 33.2 mg/g qe; an initial dye concentration of 100 mg/L with 37.6 mg/g qe; and a temperature of 35 °C with 42.5 mg/g qe. Graphene oxide-doped cadmium sulfide (GO/CdS) showed the following optimum conditions: pH 8 with 23.1 mg/g qe; an adsorbent dose of 0.01 g/50 mL with 25.5 mg/g qe; an initial dye concentration of 75 mg/L with 28.3 mg/g qe; and a temperature of 35 °C with 33.5 mg/g qe. The pseudo-first-order model was the best fit only for graphene oxide-doped magnesium oxide (GO/MgO) with an R2 value of 0.966, while the pseudo-second-order adsorption isotherm was the best fit for all four products, with R2 values ranging from 0.991 to 0.998. Additionally, the Langmuir adsorption isotherms provided good results for all four products, with R2 values ranging from 0.957 to 0.985. The Freundlich adsorption kinetics showed satisfactory fit only for graphene oxide-doped magnesium oxide (GO/MgO) and graphene oxide-doped cadmium sulfide (GO/CdS), with R2 values of 0.951 and 0.982, respectively. To examine the characteristics and practicality of the adsorption process, certain thermodynamic variables were calculated. The adsorption capability of the most efficient nanocomposites for the degradation of basic red-46 was significantly affected by various concentrations of heavy metal ions and electrolytes. In dye solutions containing surfactants/detergents, the adsorption efficiency of several effective photocatalysts for basic dyes was significantly reduced. A 0.5 M HCl solution was found to be the most effective for desorption. In column investigations, the optimal bed height, flow velocity, and dye intake levels were determined to be 3 cm, 1.8 mL/min, and 70 mg/L, respectively, for maximal adsorption of basic red-46. The adsorption investigation of genuine textile waste products has also been carried out to facilitate the practical deployment of this approach. The methods used in this study were cost-effective, easy to handle, and eco-friendly and involved no hazardous materials in the synthesis, making the resulting materials non-hazardous. All these methods were part of green chemistry.
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Affiliation(s)
- Aiman Safdar
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Ruba Munir
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Zil-E-Hasnain
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Saima Noreen
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan.
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Rashid SN, Hizaddin HF, Hayyan A, Chan SE, Hasikin K, Razak SA, Mokhtar MI, Azizan MM. A kinetic study of ex-situ soil remediation by nickel extraction using natural deep eutectic solvent. ENVIRONMENTAL TECHNOLOGY 2024; 45:4820-4833. [PMID: 37953730 DOI: 10.1080/09593330.2023.2283093] [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: 06/26/2023] [Accepted: 10/13/2023] [Indexed: 11/14/2023]
Abstract
Using natural deep eutectic solvents (NADESs) as a green reagent is a step toward producing environmentally friendly and sustainable technology. This study screened three natural DESs developed using quaternary ammonium salt and organic acid to analyse their capability to extract nickel ions from contaminated mangrove soil, which are ChCl: Acetic Acid (ChCl-AceA), ChCl: Levulinic Acid (ChCl-LevA), and ChCl: Ethylene Glycol(ChCl-Eg) at molar ratio 1:2. The impact of various operating parameters such as washing agent concentration, pH solution, and contact time on the NADES performance in the dissolution of Ni ions batch experiments were performed. The optimal soil washing conditions for metal removal were 30% and 15% concentration, a 1:5 soil-liquid ratio, and pH 2 of ChCl-LevA and ChCl-AceA, respectively. A single removal washing may remove 70.8% and 70.0% Ni ions from the contaminated soil. The dissolution kinetic of Ni ions extraction onto NADES was explained using the linear kinetic pseudo and intraparticle mass transfer diffusion models. The kinetic validation demonstrates a good fit between the experimental and pseudo-second-order Lagergren data. The model's maximum Ni dissolution capacity, Qe are 51.56 mg g-1 and 52.00 mg g-1 of ChCl-LevA and ChCl-AceA, respectively. The synthesised natural-based DES has the potential to be a cost-effective, efficient, green alternative extractant to conventional solvent extraction of heavy metals.
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Affiliation(s)
- Shahidah Nusailah Rashid
- Department of Chemical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur, Malaysia
- University of Malaya Centre for Ionic Liquids (UMCiL) Universiti Malaya, Kuala Lumpur, Malaysia
| | - Hanee F Hizaddin
- Department of Chemical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur, Malaysia
- University of Malaya Centre for Ionic Liquids (UMCiL) Universiti Malaya, Kuala Lumpur, Malaysia
| | - Adeeb Hayyan
- Department of Chemical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur, Malaysia
- University of Malaya Centre for Ionic Liquids (UMCiL) Universiti Malaya, Kuala Lumpur, Malaysia
- Sustainable Process Engineering Center (SPEC), Faculty of Engineering, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Shee En Chan
- Department of Chemical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Khairunnisa Hasikin
- Department of Biomedical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Sarah Abdul Razak
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Mohd Istajib Mokhtar
- Department of Science and Technology Studies, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Muhammad Mokhzaini Azizan
- Department of Electrical and Electronic Engineering, Faculty of Engineering and Built Environment, Universiti Sains Islam Malaysia, Negeri Sembilan, Malaysia
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Skourti A, Giannoulia S, Daletou MK, Aggelopoulos CA. Enhanced Dye Adsorption on Cold Plasma-Oxidized Multi-Walled Carbon Nanotubes: A Comparative Study. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1298. [PMID: 39120403 PMCID: PMC11314139 DOI: 10.3390/nano14151298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 07/30/2024] [Accepted: 07/31/2024] [Indexed: 08/10/2024]
Abstract
The oxidation of multi-walled carbon nanotubes (MWCNTs) using cold plasma was investigated for their subsequent use as adsorbents for the removal of dyes from aqueous solutions. The properties of MWCNTs after plasma modification and their adsorption capacities were compared with pristine and chemically oxidized nanotubes. The modification process employed a reactor where plasma was generated through dielectric barrier discharges (DBD) powered by high-voltage nanosecond pulses. Various modification conditions were examined, such as processing time and pulse voltage amplitude. The degree of oxidation and the impact on the chemistry and structure of the nanotubes was investigated through various physicochemical and morphological characterization techniques (XPS, BET, TEM, etc.). Maximum oxidation (O/C = 0.09 from O/C = 0.02 for pristine MWCNTs) was achieved after 60 min of nanopulsed-DBD plasma treatment. Subsequently, the modified nanotubes were used as adsorbents for the removal of the dye methylene blue (MB) from water. The adsorption experiments examined the effects of contact time between the adsorbent and MB, as well as the initial dye concentration in water. The plasma-modified nanotubes exhibited high MB removal efficiency, with adsorption capacity proportional to the degree of oxidation. Notably, their adsorption capacity significantly increased compared to both pristine and chemically oxidized MWCNTs (~54% and ~9%, respectively). Finally, the kinetics and mechanism of the adsorption process were studied, with experimental data fitting well to the pseudo-second-order kinetic model and the Langmuir isotherm model. This study underscores the potential of plasma technology as a low-cost and environmentally friendly approach for material modification and water purification.
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Affiliation(s)
- Anastasia Skourti
- Laboratory of Cold Plasma and Advanced Techniques for Improving Environmental Systems, Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas (FORTH/ICE-HT), 26504 Patras, Greece
- Laboratory of Advanced Materials and Electrochemical Energy Conversion Devices, Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas (FORTH/ICE-HT), 26504 Patras, Greece
| | - Stefania Giannoulia
- Laboratory of Cold Plasma and Advanced Techniques for Improving Environmental Systems, Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas (FORTH/ICE-HT), 26504 Patras, Greece
| | - Maria K. Daletou
- Laboratory of Advanced Materials and Electrochemical Energy Conversion Devices, Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas (FORTH/ICE-HT), 26504 Patras, Greece
| | - Christos A. Aggelopoulos
- Laboratory of Cold Plasma and Advanced Techniques for Improving Environmental Systems, Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas (FORTH/ICE-HT), 26504 Patras, Greece
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Sikha S, Mandal B. Cerium-based metal-organic-frameworks with ligand tuning of the microstructures for fluoride adsorption: linear and nonlinear kinetic and isotherm adsorption models. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:53253-53269. [PMID: 39180661 DOI: 10.1007/s11356-024-34729-1] [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: 03/28/2024] [Accepted: 08/13/2024] [Indexed: 08/26/2024]
Abstract
We present the synthesis and characterisation of three Ce-based metal-organic frameworks (Ce-MOFs) using fumaric acid (Fu), terephthalic acid (BDC), and trimesic acid (H3BTC) as linkers. The use of different linkers influenced the size of the MOF particles, surface area, crystallinity, and microporous structure. The successful implementation of Ce-Fu, Ce-BDC, and Ce-H3BTC MOFs for fluoride ion removal from wastewater was carried out, in which Ce-Fu MOFs exhibited a maximum adsorption capacity (AC) of 64.2 mg g-1. The study also reveals that the use of ultrasound as a mediator for adsorption study over conventional method gives rapid adsorption rate, in which 85% of the fluoride uptake took place just in 10 min and achieved maximum AC in 30 min. The kinetics data were most accurately explained by the pseudo-second-order model (PSO). The existence of co-ions such as NO3-, Cl-, HCO3-, SO42-, Br-, CO32-, and PO43- has a substantial effect on fluoride removal. The mechanism between the fluoride ions and the MOF surface took place via the electrostatic force and the ion exchange process, confirmed using X-ray photoelectron spectroscopy (XPS) and delsa nano. The material is sustained its relatively higher F- ions removal efficiency up to the five cycles. This research might help in the development of novel microporous Ce-based MOFs since it possesses a highly stable crystalline structure in water, suggesting a promising role in aqueous applications.
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Affiliation(s)
- Sikha Sikha
- Department of Chemical Engineering, Separation Science Laboratory, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Bishnupada Mandal
- Department of Chemical Engineering, Separation Science Laboratory, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India.
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Saha S, Basu H, Singh S, Kumar Singhal R. A biogenic hydrogel to recover Au(III) from electronic waste. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 363:121384. [PMID: 38850922 DOI: 10.1016/j.jenvman.2024.121384] [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: 03/14/2024] [Revised: 05/24/2024] [Accepted: 06/02/2024] [Indexed: 06/10/2024]
Abstract
In the course of this investigation, we undertook the contemplation of a green chemistry paradigm with the express intent of procuring valuable metal, namely gold, from electronic waste (e-waste). In pursuit of this overarching objective, we conceived a procedural framework consisting of two pivotal stages. As an initial stage, we introduced a physical separation procedure relying on the utilization of the Eddy current separator, prior to embarking on the process of leaching from e-waste. Subsequent to the partitioning of metals from the non-metal constituents of waste printed circuit boards (PCB), we initiated an investigation into the hydrogel derived from basil seeds (Ocimum basilicum L.), utilizing it as a biogenic sorbent medium. The thorough characterization of hydrogel extracted from basil seeds involved the application of an array of analytical techniques, encompassing FTIR, XRD, SEM, and BET. The batch sorption experiments show more than 90% uptake in the pH range of 2-5. The sorption capacity of the hydrogel material was evaluated as 188.44 mg g-1 from the Langmuir Isotherm model. The potential interference stemming from a spectrum of other ions, encompassing Al, Cu, Ni, Zn, Co, Cr, Fe, Mn, and Pb was systematically examined. Notably, the sole instance of interference in the context of adsorption of gold ions was observed to be associated with the presence of lead. The application of the hydrogel demonstrated a commendable efficiency in the recovery of Au(III) from the leached solution derived from the waste PCB.
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Affiliation(s)
- Sudeshna Saha
- Analytical Chemistry Division, Bhabha Atomic Research Center, Trombay, Mumbai, 400085, India; Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, 400094, India.
| | - Hirakendu Basu
- Analytical Chemistry Division, Bhabha Atomic Research Center, Trombay, Mumbai, 400085, India.
| | - Shweta Singh
- Analytical Chemistry Division, Bhabha Atomic Research Center, Trombay, Mumbai, 400085, India.
| | - Rakesh Kumar Singhal
- Analytical Chemistry Division, Bhabha Atomic Research Center, Trombay, Mumbai, 400085, India; Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, 400094, India.
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Sharma A, Shivanna JM, Alodhayb AN, Hegde G. Efficient cationic dye removal from water through Arachis hypogaea skin-derived carbon nanospheres: a rapid and sustainable approach. NANOSCALE ADVANCES 2024; 6:3199-3210. [PMID: 38868826 PMCID: PMC11166100 DOI: 10.1039/d4na00254g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 04/18/2024] [Indexed: 06/14/2024]
Abstract
The present study investigates the potential of Arachis hypogaea skin-derived carbon nanospheres (CNSs) as an efficient adsorbent for the rapid removal of cationic dyes from aqueous solutions. The CNSs were synthesized through a facile, cost-effective, catalyst-free and environmentally friendly process, utilizing Arachis hypogaea skin waste as a precursor. This is the first reported study on the synthesis of mesoporous carbon nanospheres from Arachis hypogaea skin. The structural and morphological characteristics of the CNSs were confirmed by different nano-characterization techniques. The adsorption performance of the carbon nanospheres was evaluated through batch adsorption experiments using two cationic dyes-methylene blue (MB) and malachite green (MG). The effects of the initial dye concentration, contact time, adsorbent dosage, and pH were investigated to determine the optimal conditions for dye removal. The results revealed that the obtained CNSs exhibited remarkable adsorption capacity and rapid adsorption kinetics. Up to ∼98% removal efficiency was noted for both dyes in as little as 2 min for a 5 mg L-1 dye concentration, and the CNSs maintained their structural morphology even after adsorption. The adsorption data were fitted to various kinetic and isotherm models to gain insights into the adsorption mechanism and behaviour. The pseudo-second-order kinetic model and Redlich-Peterson model best described the experimental data, indicating multi-layer adsorption and chemisorption as the predominant adsorption mechanism. The maximum adsorption capacity was determined to be 1128.46 mg g-1 for MB and 387.6 mg g-1 for MG, highlighting the high affinity of the carbon nanospheres towards cationic dyes. Moreover, CNS reusability and stability were examined through desorption and regeneration experiments, which revealed sustained efficiency over 7 cycles. CNSs were immobilised in a membrane matrix and examined for adsorption, which demonstrated acceptable efficiency values and opened the door for further improvement.
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Affiliation(s)
- Aman Sharma
- Department of Chemistry, School of Sciences, CHRIST (Deemed to be University) Hosur Road Bengaluru 560029 India
- Centre for Advanced Research and Development (CARD), CHRIST (Deemed to be University) Hosur Road Bengaluru 560029 India
| | | | - Abdullah N Alodhayb
- Department of Physics and Astronomy, College of Science, King Saud University Riyadh 11451 Saudi Arabia
| | - Gurumurthy Hegde
- Department of Chemistry, School of Sciences, CHRIST (Deemed to be University) Hosur Road Bengaluru 560029 India
- Centre for Advanced Research and Development (CARD), CHRIST (Deemed to be University) Hosur Road Bengaluru 560029 India
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Lopez E, Gómez M, Becar I, Zapata P, Pizarro J, Navlani-García M, Cazorla-Amorós D, Presser V, Gómez T, Cárdenas C. Removal of Mo(VI), Pb(II), and Cu(II) from wastewater using electrospun cellulose acetate/chitosan biopolymer fibers. Int J Biol Macromol 2024; 269:132160. [PMID: 38718995 DOI: 10.1016/j.ijbiomac.2024.132160] [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: 02/07/2024] [Revised: 04/18/2024] [Accepted: 05/05/2024] [Indexed: 05/30/2024]
Abstract
Environmentally friendly polymers such as cellulose acetate (CA) and chitosan (CS) were used to obtain electrospun fibers for Cu2+, Pb2+, and Mo6+ capture. The solvents dichloromethane (DCM) and dimethylformamide (DMF) allowed the development of a surface area of 148 m2 g-1 for CA fibers and 113 m2 g-1 for cellulose acetate/chitosan (CA/CS) fibers. The fibers were characterized by IR-DRIFT, SEM, TEM, CO2 sorption isotherms at 273 K, Hg porosimetry, TGA, stress-strain tests, and XPS. The CA/CS fibers had a higher adsorption capacity than CA fibers without affecting their physicochemical properties. The capture capacity reached 102 mg g-1 for Cu2+, 49.3 mg g-1 for Pb2+, and 13.1 mg g-1 for Mo6+. Furthermore, optimal pH, adsorption times qt, and C0 were studied for the evaluation of kinetic models and adsorption isotherms. Finally, a proposal for adsorbate-adsorbent interactions is presented as a possible capture mechanism where, in the case of Mo6+, a computational study is presented. The results demonstrate the potential to evaluate the fibers in tailings wastewater from copper mining.
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Affiliation(s)
- Esmeralda Lopez
- Departamento de Ingeniería Metalúrgica, Facultad de Ingeniería, Universidad de Santiago de Chile, USACH, Santiago 9170022, Chile; Laboratorio de Química Ambiental y Remediación, Departamento de Ingeniería Geoespacial y Ambiental, Facultad de Ingeniería, Universidad de Santiago de Chile, USACH, Santiago 9170022, Chile; Grupo Polímeros, Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, USACH, Santiago 9170022, Chile.
| | - Mauricio Gómez
- Laboratorio de Química Ambiental y Remediación, Departamento de Ingeniería Geoespacial y Ambiental, Facultad de Ingeniería, Universidad de Santiago de Chile, USACH, Santiago 9170022, Chile; Grupo Polímeros, Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, USACH, Santiago 9170022, Chile.
| | - Ian Becar
- Laboratorio de Química Ambiental y Remediación, Departamento de Ingeniería Geoespacial y Ambiental, Facultad de Ingeniería, Universidad de Santiago de Chile, USACH, Santiago 9170022, Chile
| | - Paula Zapata
- Grupo Polímeros, Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, USACH, Santiago 9170022, Chile
| | - Jaime Pizarro
- Laboratorio de Química Ambiental y Remediación, Departamento de Ingeniería Geoespacial y Ambiental, Facultad de Ingeniería, Universidad de Santiago de Chile, USACH, Santiago 9170022, Chile
| | - Miriam Navlani-García
- Instituto Universitario de Materiales, Departamento de Química Inorgánica, Universidad de Alicante, Apartado 99, 03080 Alicante, Spain
| | - Diego Cazorla-Amorós
- Instituto Universitario de Materiales, Departamento de Química Inorgánica, Universidad de Alicante, Apartado 99, 03080 Alicante, Spain
| | - Volker Presser
- INM - Leibniz Institute for New Materials, Campus D2 2, 66123 Saarbrücken, Germany; Department of Material Science and Engineering, Saarland University, Campus D2 2, 66123 Saarbrücken, Germany; Saarene - Saarland Center for Energy Materials and Sustainability, Campus C4 2, 66123 Saarbrücken, Germany
| | - Tatiana Gómez
- Theoretical and Computational Chemistry Center, Institute of Applied Sciences, Faculty of Engineering, Universidad Autonoma de Chile, Santiago, Chile
| | - Carlos Cárdenas
- Departamento de Física, Facultad de Ciencias, Universidad de Chile, Av. Las Palmeras 3425, Ñuñoa, Santiago, Chile; Centro para el Desarrollo de la Nanociencia y la Nanotecnología (CEDENNA), Av. Ecuador 3493, Santiago 9170124, Chile
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9
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Rando G, Sfameni S, Milone M, Mezzi A, Brucale M, Notti A, Plutino MR. Smart pillar[5]arene-based PDMAEMA/PES beads for selective dye pollutants removal: design, synthesis, chemical-physical characterization, and adsorption kinetic studies. CHEMSUSCHEM 2024; 17:e202301502. [PMID: 38154027 DOI: 10.1002/cssc.202301502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/07/2023] [Accepted: 12/22/2023] [Indexed: 12/30/2023]
Abstract
This article reports on the synthesis of an innovative smart polymer, P5-QPDMAEMA, opportunely developed with the aim of combining the responsiveness of PDMAEMA polymer and the host-guest properties of covalently linked pillar[5]arenes. Thanks to a traditional Non-Induced Phase Separation (NIPS) process performed at various coagulation pH, the blending of P5-QPDMAEMA with polyethersulfone gave rise to the formation of functional beads for the removal of organic dyes in water. Adsorption tests are carried out on all the produced blend-based beads by employing two representative dyes, the cationic methylene blue (MB), and the anionic methyl orange (MO). In particular, the P5-QPDMAEMA based beads, prepared at acidic pH, featured the best MO removal rate (i. e., 91.3 % after 150 minutes starting from a 20 mg ⋅ L-1 solution) and a high selectivity towards the removal of the selected anionic dye. Based on the adsorption kinetics and isotherm calculations, the pseudo-first order and Freundlich models were shown to be the most suitable to describe the MO adsorption behavior, achieving a maximum adsorption capacity of 21.54 mg ⋅ g-1. Furthermore, zwitterionic beads are obtained by a post-functionalization of the PDMAEMA and the P5-QPDMAEMA based beads, to test their removal capability towards both anionic and cationic dyes, as shown.
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Affiliation(s)
- Giulia Rando
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences (ChiBioFarAm), University of Messina, Viale F. Stagno d'Alcontres 31, 98166, Messina, Italy
- Institute for the Study of Nanostructured Materials, ISMN - CNR, URT Messina, c/o Dep. ChiBioFarAm, University of Messina, Viale F. Stagno d'Alcontres 31, 98166, Messina, Italy
| | - Silvia Sfameni
- Institute for the Study of Nanostructured Materials, ISMN - CNR, URT Messina, c/o Dep. ChiBioFarAm, University of Messina, Viale F. Stagno d'Alcontres 31, 98166, Messina, Italy
| | - Marco Milone
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences (ChiBioFarAm), University of Messina, Viale F. Stagno d'Alcontres 31, 98166, Messina, Italy
| | - Alessio Mezzi
- Institute for the Study of Nanostructured Materials, ISMN - CNR, via Salaria Km 29.3, 00015, Monterotondo stazione, Rome, Italy
| | - Marco Brucale
- Institute for the Study of Nanostructured Materials, ISMN - CNR, via P. Gobetti 101, 40129, Bologna, Italy
| | - Anna Notti
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences (ChiBioFarAm), University of Messina, Viale F. Stagno d'Alcontres 31, 98166, Messina, Italy
| | - Maria Rosaria Plutino
- Institute for the Study of Nanostructured Materials, ISMN - CNR, URT Messina, c/o Dep. ChiBioFarAm, University of Messina, Viale F. Stagno d'Alcontres 31, 98166, Messina, Italy
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10
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Kumari B, Chauhan S, Chauhan GS, Kumar K, Jamwal P, Ranote S. A two-in-one thiosemicarbazide and whole pine needle-based adsorbent for rapid and efficient adsorption of methylene blue dye and mercuric ions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:21591-21609. [PMID: 38396177 DOI: 10.1007/s11356-024-32446-3] [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: 10/25/2023] [Accepted: 02/08/2024] [Indexed: 02/25/2024]
Abstract
Herein, we report the synthesis of an oxidized pine needle-thiosemicarbazone Schiff base (OPN-TSC) from whole pine needles (WPN) as a dual-purpose adsorbent to remove a cationic dye, methylene blue (MB), and Hg2+ ions in separate processes. The adsorbent was synthesized by periodate oxidation of WPN followed by a reaction with thiosemicarbazide. The syntheses of OPN and OPN-TSC were confirmed by FTIR, XRD, FESEM, EDS, BET, and surface charge analysis. The emergence of new peaks at 1729 cm-1 (-CHO stretching) and 1639 cm-1 (-COO- stretching) in the FTIR spectrum of OPN confirmed the oxidation of WPN to OPN. FTIR spectrum of OPN-TSC has a peak at 1604 cm-1 (C = N stretching), confirming the functionalization of OPN to OPN-TSC. XRD studies revealed an increase in the crystallinity of OPN and a decrease in the crystallinity of OPN-TSC because of the attachment of thiosemicarbazide to OPN. The values of %removal for MB and Hg2+ ions by OPN-TSC were found to be 87.36% and 98.2% with maximum adsorption capacity of 279.3 mg/g and 196 mg/g for MB and Hg2+ ions, respectively. The adsorption of MB followed pseudo-second-order kinetics with correlation coefficient (R2 of 0.99383) and Freundlich isotherm (R2 = 0.97239), whereas Hg2+ ion removal demonstrated the Elovich (R2 = 0.97076) and Langmuir isotherm (R2 = 0.95110). OPN-TSC is regenerable with significant recyclability up to 10 cycles for both the adsorbates. The studies established OPN-TSC as a low-cost, sustainable, biodegradable, environmentally benign, and promising adsorbent for the removal of hazardous cationic dyes and toxic metal ions from wastewater and industrial effluents, especially the textile effluents.
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Affiliation(s)
- Babita Kumari
- Department of Chemistry, Himachal Pradesh University, Summerhill, Shimla, Himachal-Pradesh, India, 171005
| | - Sandeep Chauhan
- Department of Chemistry, Himachal Pradesh University, Summerhill, Shimla, Himachal-Pradesh, India, 171005.
| | - Ghanshyam S Chauhan
- Department of Chemistry, Himachal Pradesh University, Summerhill, Shimla, Himachal-Pradesh, India, 171005
| | - Kiran Kumar
- Department of Chemistry, Himachal Pradesh University, Summerhill, Shimla, Himachal-Pradesh, India, 171005
| | - Pooja Jamwal
- Department of Chemistry, Himachal Pradesh University, Summerhill, Shimla, Himachal-Pradesh, India, 171005
| | - Sunita Ranote
- Department of Chemistry, Himachal Pradesh University, Summerhill, Shimla, Himachal-Pradesh, India, 171005
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34. M. Curie-Skłodowska St, 41-819, Zabrze, Poland
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11
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Dumitru MV, Neagu AL, Miron A, Roque MI, Durães L, Gavrilă AM, Sarbu A, Iovu H, Chiriac AL, Iordache TV. Retention of Ciprofloxacin and Carbamazepine from Aqueous Solutions Using Chitosan-Based Cryostructured Composites. Polymers (Basel) 2024; 16:639. [PMID: 38475322 DOI: 10.3390/polym16050639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/07/2024] [Accepted: 02/19/2024] [Indexed: 03/14/2024] Open
Abstract
Water pollution is becoming a great concern at the global level due to highly polluted effluents, which are charged year by year with increasing amounts of organic residues, dyes, pharmaceuticals and heavy metals. For some of these pollutants, the industrial treatment of wastewater is still relevant. Yet, in some cases, such as pharmaceuticals, specific treatment schemes are urgently required. Therefore, the present study describes the synthesis and evaluation of promising cryostructured composite adsorbents based on chitosan containing native minerals and two types of reinforcement materials (functionalized kaolin and synthetic silicate microparticles). The targeted pharmaceuticals refer to the ciprofloxacin (CIP) antibiotic and the carbamazepine (CBZ) drug, for which the current water treatment process seem to be less efficient, making them appear in exceedingly high concentrations, even in tap water. The study reveals first the progress made for improving the mechanical stability and resilience to water disintegration, as a function of pH, of chitosan-based cryostructures. Further on, a retention study shows that both pharmaceuticals are retained with high efficiency (up to 85.94% CIP and 86.38% CBZ) from diluted aqueous solutions.
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Affiliation(s)
- Marinela-Victoria Dumitru
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 202 Spl. Independenței, 060021 Bucharest, Romania
- Faculty of Chemical Engineering and Biotechnology, University POLITEHNICA of Bucharest, 1-7 Ghe. Polizu Street, 011061 Bucharest, Romania
| | - Ana-Lorena Neagu
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 202 Spl. Independenței, 060021 Bucharest, Romania
| | - Andreea Miron
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 202 Spl. Independenței, 060021 Bucharest, Romania
| | - Maria Inês Roque
- University of Coimbra, CERES-Chemical Engineering and Renewable Resources for Sustainability, Department of Chemical Engineering, Rua Silvio Lima, 3030-790 Coimbra, Portugal
| | - Luisa Durães
- University of Coimbra, CERES-Chemical Engineering and Renewable Resources for Sustainability, Department of Chemical Engineering, Rua Silvio Lima, 3030-790 Coimbra, Portugal
| | - Ana-Mihaela Gavrilă
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 202 Spl. Independenței, 060021 Bucharest, Romania
| | - Andrei Sarbu
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 202 Spl. Independenței, 060021 Bucharest, Romania
| | - Horia Iovu
- Faculty of Chemical Engineering and Biotechnology, University POLITEHNICA of Bucharest, 1-7 Ghe. Polizu Street, 011061 Bucharest, Romania
| | - Anita-Laura Chiriac
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 202 Spl. Independenței, 060021 Bucharest, Romania
| | - Tanța Verona Iordache
- National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 202 Spl. Independenței, 060021 Bucharest, Romania
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12
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Zu JH, Pan XH, Su XD, Liu F, Zhan J, He Y, Chen JG. Adsorption of Zn(II) from aqueous solution and separation of zinc isotopes by displacement chromatography using chelating adsorbent. J Chromatogr A 2024; 1717:464659. [PMID: 38271771 DOI: 10.1016/j.chroma.2024.464659] [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: 10/10/2023] [Revised: 12/14/2023] [Accepted: 01/13/2024] [Indexed: 01/27/2024]
Abstract
The removal of zinc ions (Zn(II)) in water and the separation of zinc isotopes were fully investigated in this study. Imidodiacetic acid (IDA) type adsorbent (named PSGI) based on polystyrene spheres (PS) was synthesized by simultaneous irradiation grafting. By adsorption method, the removal of Zn(II) from water by the chelating adsorbent was studied in batch experiments. Under optimized condition, PSGI showed the removal efficiency of more than 98 % for Zn(II) and the adsorption capacity of 70.1 mg/g. Langmuir isothermal and pseudo-second-order kinetic model fitted the experimental results better, indicating that the adsorption is dominated by chemical adsorption. The spent adsorbent (PSGI-Zn) was used for further zinc isotope separation by displacement chromatography using EDTA-NH4 solution as eluent. Due to the mass effect of isotopes, 70Zn was found to preferentially fractionated into the front-end effluents with the highest front enrichment values of 70Zn/64Zn. By extending the migration distance to 20 m, we obtained the best isotope enrichment with the front maximum enrichment values as 1.0949, 1.0739 and separation coefficient values as 1.977 × 10-3, 8.33 × 10-3 corresponding to the isotope pairs 66Zn/64Zn, 68Zn/64Zn.
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Affiliation(s)
- Jian-Hua Zu
- School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China.
| | - Xiao-Han Pan
- School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Xing-Dong Su
- PR China Nuclear Power Technology Research Institute, Shenzhen, 518028, PR China
| | - Feng Liu
- PR China Nuclear Power Technology Research Institute, Shenzhen, 518028, PR China
| | - Jie Zhan
- PR China Nuclear Power Technology Research Institute, Shenzhen, 518028, PR China
| | - Ye He
- PR China Nuclear Power Technology Research Institute, Shenzhen, 518028, PR China
| | - Jiu-Geng Chen
- Instrumental Analysis Center, Shanghai Jiao Tong University, Shanghai, 200240, PR China
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13
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Zulfiqar N, Nadeem R, Musaimi OAI. Photocatalytic Degradation of Antibiotics via Exploitation of a Magnetic Nanocomposite: A Green Nanotechnology Approach toward Drug-Contaminated Wastewater Reclamation. ACS OMEGA 2024; 9:7986-8004. [PMID: 38405456 PMCID: PMC10882661 DOI: 10.1021/acsomega.3c08116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/13/2024] [Accepted: 01/19/2024] [Indexed: 02/27/2024]
Abstract
In the quest for eco-conscious innovations, this research was designed for the sustainable synthesis of magnetite (Fe3O4) nanoparticles, using ferric chloride hexahydrate salt as a precursor and extract of Eucalyptus globulus leaves as both a reducing and capping agent, which are innovatively applied as a photocatalyst for the photocatalytic degradation of antibiotics "ciprofloxacin and amoxicillin". Sugar cane bagasse biomass, sugar cane bagasse pyrolyzed biochar, and magnetite/sugar cane bagasse biochar nanocomposite were also synthesized via environmentally friendly organized approaches. The optimum conditions for the degradation of ciprofloxacin and amoxicillin were found to be pH 6 for ciprofloxacin and 5 for amoxicillin, dosage of the photocatalyst (0.12 g), concentration (100 mg/L), and irradiation time (240 min). The maximum efficiencies of percentage degradation for ciprofloxacin and amoxicillin were found to be (73.51%) > (63.73%) > (54.57%) and (74.07%) > (61.55%) > (50.66%) for magnetic nanocomposites, biochar, and magnetic nanoparticles, respectively. All catalysts demonstrated favorable performance; however, the "magnetite/SCB biochar" nanocomposite exhibited the most promising results among the various catalysts employed in the photocatalytic degradation of antibiotics. Kinetic studies for the degradation of antibiotics were also performed, and notably, the pseudo-first-order chemical reaction showed the best results for the degradation of antibiotics. Through a comprehensive and comparative analysis of three unique photocatalysts, this research identified optimal conditions for efficient treatment of drug-contaminated wastewater, thus amplifying the practical significance of the findings. The recycling of magnetic nanoparticles through magnetic separation, coupled with their functional modification for integration into composite materials, holds significant application potential in the degradation of antibiotics.
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Affiliation(s)
- Noor Zulfiqar
- Department
of Chemistry, Faculty of Science, University
of Agriculture, Faisalabad 38000, Pakistan
| | - Raziya Nadeem
- Department
of Chemistry, Faculty of Science, University
of Agriculture, Faisalabad 38000, Pakistan
| | - Othman AI Musaimi
- School
of Pharmacy, Faculty of Medical Sciences, Newcastle upon Tyne NE1
7RU, U.K.
- Department
of Chemical Engineering, Imperial College
London, London SW7 2AZ, U.K.
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14
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Miron A, Iordache TV, Valente AJM, Durães LMR, Sarbu A, Ivan GR, Zaharia A, Sandu T, Iovu H, Chiriac AL. Chitosan-Based Beads Incorporating Inorganic-Organic Composites for Copper Ion Retention in Aqueous Solutions. Int J Mol Sci 2024; 25:2411. [PMID: 38397088 PMCID: PMC10889537 DOI: 10.3390/ijms25042411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 02/12/2024] [Accepted: 02/14/2024] [Indexed: 02/25/2024] Open
Abstract
In recent years, there has been a challenging interest in developing low-cost biopolymeric materials for wastewater treatment. In the present work, new adsorbents, based on different types of chitosan (commercial, commercial chitin-derived chitosan and chitosan synthesized from shrimp shell waste) and inorganic-organic composites have been evaluated for copper ions removal. The efficacy of the synthesis of chitosan-based composite beads has been determined by studying various characteristics using several techniques, including FTIR spectroscopy, X-ray diffraction, porosimetry (N2 adsorption), and scanning electron microscopy (SEM). Adsorption kinetics was performed using different adsorption models to determine the adsorption behavior of the materials in the aqueous media. For all composite beads, regardless of the type of chitosan used, good capacity to remove copper ions from simulated waters was observed (up to 17 mg/g), which proves that the new materials hold potential for heavy metal retention. However, the adsorption efficiency was influenced by the type of chitosan used. Thus, for the series where commercial chitosan (CC) was used, the removal efficiency was approximately 29%; for the series with chitosan obtained from commercial chitin (SC), the removal efficiency was approximately 34%; for the series with chitosan enriched with CaCO3 (SH), the removal efficiency was approximately 52%.
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Affiliation(s)
- Andreea Miron
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania; (A.M.); (T.-V.I.); (A.S.); (G.R.I.); (A.Z.); (T.S.)
- Advanced Polymer Materials Group, National University of Science and Technology Politehnica Bucharest, 1–7 Gh. Polizu Street, 011061 Bucharest, Romania;
| | - Tanta-Verona Iordache
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania; (A.M.); (T.-V.I.); (A.S.); (G.R.I.); (A.Z.); (T.S.)
| | - Artur J. M. Valente
- CQC-IMS, Department of Chemistry, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal;
| | - Luisa Maria Rocha Durães
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima, 3030-790 Coimbra, Portugal;
| | - Andrei Sarbu
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania; (A.M.); (T.-V.I.); (A.S.); (G.R.I.); (A.Z.); (T.S.)
| | - Georgeta Ramona Ivan
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania; (A.M.); (T.-V.I.); (A.S.); (G.R.I.); (A.Z.); (T.S.)
| | - Anamaria Zaharia
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania; (A.M.); (T.-V.I.); (A.S.); (G.R.I.); (A.Z.); (T.S.)
| | - Teodor Sandu
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania; (A.M.); (T.-V.I.); (A.S.); (G.R.I.); (A.Z.); (T.S.)
| | - Horia Iovu
- Advanced Polymer Materials Group, National University of Science and Technology Politehnica Bucharest, 1–7 Gh. Polizu Street, 011061 Bucharest, Romania;
| | - Anita-Laura Chiriac
- Advanced Polymer Materials and Polymer Recycling Group, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, Spl. Independentei 202, 6th District, 060021 Bucharest, Romania; (A.M.); (T.-V.I.); (A.S.); (G.R.I.); (A.Z.); (T.S.)
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15
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Momin SC, Pradhan RB, Nath J, Lalmuanzeli R, Kar A, Mehta SK. Metal sequestration by Microcystis extracellular polymers: a promising path to greener water treatment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:11192-11213. [PMID: 38217816 DOI: 10.1007/s11356-023-31755-3] [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: 10/27/2023] [Accepted: 12/23/2023] [Indexed: 01/15/2024]
Abstract
The problem of heavy metal pollution in water bodies poses a significant threat to both the environment and human health, as these toxic substances can persist in aquatic ecosystems and accumulate in the food chain. This study investigates the promising potential of using Microcystis aeruginosa extracellular polymeric substances (EPS) as an environmentally friendly, highly efficient solution for capturing copper (Cu2+) and nickel (Ni2+) ions in water treatment, emphasizing their exceptional ability to promote green technology in heavy metal sequestration. We quantified saccharides, proteins, and amino acids in M. aeruginosa biomass and isolated EPS, highlighting their metal-chelating capabilities. Saccharide content was 36.5 mg g-1 in biomass and 21.4 mg g-1 in EPS, emphasizing their metal-binding ability. Proteins and amino acids were also prevalent, particularly in EPS. Scanning electron microscopy (SEM) revealed intricate 3D EPS structures, with pronounced porosity and branching configurations enhancing metal sorption. Elemental composition via energy dispersive X-ray analysis (EDAX) identified essential elements in both biomass and EPS. Fourier transform infrared (FTIR) spectroscopy unveiled molecular changes after metal treatment, indicating various binding mechanisms, including oxygen atom coordination, π-electron interactions, and electrostatic forces. Kinetic studies showed EPS expedited and enhanced Cu2+ and Ni2+ sorption compared to biomass. Thermodynamic analysis confirmed exothermic, spontaneous sorption. Equilibrium biosorption studies displayed strong binding and competitive interactions in binary metal systems. Importantly, EPS exhibited impressive maximum sorption capacities of 44.81 mg g-1 for Ni2+ and 37.06 mg g-1 for Cu2+. These findings underscore the potential of Microcystis EPS as a highly efficient sorbent for heavy metal removal in water treatment, with significant implications for environmental remediation and sustainable water purification.
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Affiliation(s)
- Sengjrang Ch Momin
- Laboratory of Algal Physiology and Biochemistry, Department of Botany, Mizoram University, Aizawl, 796004, India
| | - Ran Bahadur Pradhan
- Laboratory of Algal Physiology and Biochemistry, Department of Botany, Mizoram University, Aizawl, 796004, India
| | - Jyotishma Nath
- Laboratory of Algal Physiology and Biochemistry, Department of Botany, Mizoram University, Aizawl, 796004, India
| | - Ruthi Lalmuanzeli
- Laboratory of Algal Physiology and Biochemistry, Department of Botany, Mizoram University, Aizawl, 796004, India
| | - Agniv Kar
- Laboratory of Algal Physiology and Biochemistry, Department of Botany, Mizoram University, Aizawl, 796004, India
| | - Surya Kant Mehta
- Laboratory of Algal Physiology and Biochemistry, Department of Botany, Mizoram University, Aizawl, 796004, India.
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16
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Rahaman MH, Islam MR, Islam R, Alam SMN, Rahman MS, Rahman MA, Begum BA. Preparation, characterization, and adsorption kinetics of graphene oxide/chitosan/carboxymethyl cellulose composites for the removal of environmentally relevant toxic metals. Int J Biol Macromol 2024; 257:128357. [PMID: 38035970 DOI: 10.1016/j.ijbiomac.2023.128357] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 11/16/2023] [Accepted: 11/20/2023] [Indexed: 12/02/2023]
Abstract
This study attempted to develop a low-cost and eco-friendly bio-based composite adsorbent that is highly efficient in capturing potential toxic metals. The bio-composite adsorbent was prepared using graphene oxide (GO), carboxymethyl cellulose (CMC) and chitosan (CS); and characterized using FTIR, SEM-EDX and WAXD techniques. Metal-ion concentration in an aqueous solution was measured by ICP-OES. This article reveals that the adsorption of heavy metal ions varied according to the adsorbent quantity, initial metal concentration, pH, and interaction time. The metal ions' adsorption capacity (mg/g) was observed to increase when the interaction time and metal concentration increased. Conversely, metal ions adsorption was decreased with an increase in adsorbent dosages. The effect of pH on metal ions' adsorption was ion-specific. The substantial adsorption by GO/CMC/CS composite for Co2+, CrO42-, Mn2+ and Cd2+, had the respective values of 43.55, 77.70, 57.78, and 91.38 mg/g under acidic conditions. The metal ions experimental data were best fitted with pseudo-second-order (PSO) kinetics, and Freundlich isotherm model (except Co2+). The separation factors (RL) value in the present investigation were found between 0 and 1, meaning that the metal ions adsorption onto GO/CS/CMC composite is favorable. The RL and sorption intensity (1/n) values fitted well to the adsorption isotherm.
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Affiliation(s)
- Md Hafezur Rahaman
- Department of Applied Chemistry and Chemical Engineering, Islamic University, Kushtia 7003, Bangladesh.
| | - Md Rakibul Islam
- Department of Applied Chemistry and Chemical Engineering, Islamic University, Kushtia 7003, Bangladesh
| | - Rafiquel Islam
- Department of Applied Chemistry and Chemical Engineering, Islamic University, Kushtia 7003, Bangladesh
| | - S M Nur Alam
- Department of Chemical Engineering, Jashore University of Science and Technology, Jashore 7408, Bangladesh
| | - Md Safiur Rahman
- Atomic Energy Centre (AECD) Bangladesh Atomic Energy Commission, Dhaka 1000, Bangladesh
| | - Md Aminur Rahman
- Department of Public Health Engineering, Zonal Laboratory, Khulna 9100, Bangladesh
| | - Bilkis A Begum
- Atomic Energy Centre (AECD) Bangladesh Atomic Energy Commission, Dhaka 1000, Bangladesh
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17
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Rehman R, Hussain MS, Samin G, Jahangir MM, Dar A, Al-Thagafi ZT, Alsantali RI, Al-Abbad EA, Akram M. Effective application of citric acid treated Trapa natans and Citrullus lanatus lignocellulosic macromolecules for adsorptive remediation of acid Violet-7 dye. Int J Biol Macromol 2024; 256:128285. [PMID: 38007018 DOI: 10.1016/j.ijbiomac.2023.128285] [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: 08/02/2023] [Revised: 11/14/2023] [Accepted: 11/18/2023] [Indexed: 11/27/2023]
Abstract
The peels of Trapa natans (TRA) and Citrullus lanatus (CIT), were modified with a variety of chemicals to boost their surface for the optimization of adsorption performance by providing a greater number of additional active binding sites. Citric acid-processed peels (TRAC and CITC) had shown more favorable adsorption performance to eradicate acid violet 7 dye (AVS). Extra and additional active sites generated after chemical processing, including hydroxyl (OH), carboxyl (COOH), amines NH2, carbonyl, and ester (-O-CO-) groups, as evidenced from FTIR and SEM characterizations, may boost the potential of physicochemical integration of adsorbent surface activity in order to promote and encourage the retention of hazardous and risky AVS molecules from the water. The Langmuir isotherm assessed the qmax for the adsorption of AVS on TRAC, CITC, TRA, and CIT to be 212.8, 294, 24.3, and 60.6 mg/g, respectively, whereas the correlation coefficients assessed for both TRAC and CITC were 0.98 and for TRA and CIT were 0.97, closer to unity reflecting monolayer physio-sorption. According to Temkin, the adsorption of AVS on TRAC, TRA, CITC, and CIT gives "BT" values of 1.275, 0.947, 1.085, and 1.211 mg/g, also suggesting physio-sorption. Therefore, chemically modified peels can be employed for detoxification of AVS.
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Affiliation(s)
- Rabia Rehman
- Centre for Inorganic Chemistry, School of Chemistry, University of the Punjab, Quaid-e-Azam Campus, Lahore 54590, Pakistan.
| | - Muhammad Sadiq Hussain
- Centre for Inorganic Chemistry, School of Chemistry, University of the Punjab, Quaid-e-Azam Campus, Lahore 54590, Pakistan
| | - Ghufrana Samin
- Department of Basic Sciences and Humanities, University of Engineering and Technology, Faisalabad campus, Pakistan.
| | | | - Amara Dar
- Centre for Analytical Chemistry, School of Chemistry, University of the Punjab, Quaid-e-Azam Campus, Lahore 54590, Pakistan.
| | - Zahrah T Al-Thagafi
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia.
| | - Reem I Alsantali
- Department of Pharmaceutical Chemistry, College of Pharmacy, Taif University, P.O.Box 11099,Taif 21944, Saudi Arabia.
| | - Eman A Al-Abbad
- Department of Chemistry, College of Science, Imam Abdulrahman Bin Faisal University, P.O.Box 1982, Dammam 31441, Saudi Arabia.
| | - Mehwish Akram
- Institute of Geology, University of the Punjab, Quaid-e-Azam Campus, Lahore, Pakistan.
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18
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Wang X, Qi F, Xiong J, Zhao J, Zhang G, Afzal S, Gu X, Li Q, Luo S, Mo H. Synthesis of a Novel Dithiocarbamate Surfactant Derivative Adsorbent for Efficient Removal of Heavy Metal Ions. ACS OMEGA 2023; 8:41512-41522. [PMID: 37970007 PMCID: PMC10633955 DOI: 10.1021/acsomega.3c05476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 09/18/2023] [Indexed: 11/17/2023]
Abstract
In this work, a novel heavy metal chelating agent (DTC-SDS) containing dithiocarbamate (DTC) was synthesized using sodium dodecyl sulfate (SDS), formaldehyde, and carbon disulfide. DTC-SDS has excellent trapping performance under pH 1-7 and initial concentrations 100-500 mg/L. With the increase in adsorbent dose, the adsorption amount of DTC-SDS increases and then decreases, and the optimized dosage of DTC-SDS is 0.02 g. The DTC-SDS adsorbent exhibits superior adsorption capacity (191.01, 111.7, and 79.14 mg/g) and high removal rates (97.99%, 98.48%, and 99.91%) for Mn2+, Zn2+, and Pb2+ respectively, in wastewater. Such remarkable adsorption performance could be attributed to the strong trapping effect on heavy metal ions by the C-S bond of DTC-SDS. The liquid adsorbent was in full contact with heavy metal ions, which further enhanced the complexation of heavy metal ions. The adsorption isothermal model showed that the adsorption process was typical of Langmuir monomolecular layer adsorption. Kinetic studies showed that the pseudo-second-order kinetic model fits the experimental adsorption data better than the pseudo-first-order kinetic model. In the ternary metal species system (Mn2+, Zn2+, and Pb2+), DTC-SDS preferentially adsorbed Pb2+ due to its highest covalent index. The main controlling step is the chemical interaction between the active groups of DTC-SDS and the heavy metal ions. This work provides valuable insights into the adsorption of heavy metal ions onto dithiocarbamate, which could guide the development of other heavy metal chelating agents and be beneficial for developing novel treatments of wastewater contaminated with heavy metals.
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Affiliation(s)
- Xingmin Wang
- School
of Environment and Resources, Chongqing
Technology and Business University, Chongqing 400067, P.R. China
| | - Feilan Qi
- School
of Environment and Resources, Chongqing
Technology and Business University, Chongqing 400067, P.R. China
| | - Jie Xiong
- School
of Environment and Resources, Chongqing
Technology and Business University, Chongqing 400067, P.R. China
| | - Jujiao Zhao
- School
of Environment and Resources, Chongqing
Technology and Business University, Chongqing 400067, P.R. China
| | - Guizhi Zhang
- School
of Environment and Resources, Chongqing
Technology and Business University, Chongqing 400067, P.R. China
| | - Shahzad Afzal
- Department
of Environmental Engineering, China Jiliang
University, Hangzhou Zhejiang 310018, P.R. China
| | - Xingxing Gu
- School
of Environment and Resources, Chongqing
Technology and Business University, Chongqing 400067, P.R. China
| | - Qiudong Li
- School
of Environment and Resources, Chongqing
Technology and Business University, Chongqing 400067, P.R. China
| | - Shiyang Luo
- School
of Environment and Resources, Chongqing
Technology and Business University, Chongqing 400067, P.R. China
| | - Hongbo Mo
- Chongqing
Academy of Metrology and Quality Inspection Chongqing, Chongqing, CN 400047, China
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19
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Ashraf A, Munir R, Albasher G, Ghamkhar M, Muneer A, Yaseen M, Murtza T, Noreen S. Utilization of ZnFe 2O 4-Polyaniline (PANI), ZnFe 2O 4-Polystyrene (PST), and ZnFe 2O 4-Polypyrrole (PPy) nanocomposites for removal of Red X-GRL and Direct Sky Blue dyes from wastewater: Equilibrium, kinetic and thermodynamic studies. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2023; 58:914-934. [PMID: 37800681 DOI: 10.1080/10934529.2023.2263323] [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: 12/30/2022] [Accepted: 09/12/2023] [Indexed: 10/07/2023]
Abstract
In this study, ZnFe2O4-Polyaniline (PANI), ZnFe2O4-Polystyrene (PST), and ZnFe2O4-Polypyrrole (Ppy) nanocomposites were synthesized by the adsorption method and characterized by field emission scanning electron microscopy and Fourier transform infrared spectrometer. Batch adsorption experiments were conducted for removing two types of hazardous dyes Red X-GRL and Direct Sky Blue 51 from an aqueous solution and the effect of pH, adsorbent dosage, contact time, and initial concentration of dyes were investigated. Meanwhile, kinetic, isotherm, and thermodynamic parameters were also determined. The electrolyte and surfactant effect was also tested for the prepared nanocomposites. To test the reusability desorption study was also conducted.
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Affiliation(s)
- Amina Ashraf
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
| | - Ruba Munir
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
| | - Gadah Albasher
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Madiha Ghamkhar
- Department of Mathematics and Statistics, University of Agriculture, Faisalabad, Pakistan
| | - Amna Muneer
- Department of Physics, Government College Women University, Faisalabad, Pakistan
| | - Muhammad Yaseen
- Department of Physics, University of Agriculture, Faisalabad, Pakistan
| | - Tamsal Murtza
- Department of Plant Pathology, University of Agriculture, Faisalabad, Pakistan
| | - Saima Noreen
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
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20
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Bujdák J. Controversial Issues Related to Dye Adsorption on Clay Minerals: A Critical Review. Molecules 2023; 28:6951. [PMID: 37836793 PMCID: PMC10574638 DOI: 10.3390/molecules28196951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/30/2023] [Accepted: 10/04/2023] [Indexed: 10/15/2023] Open
Abstract
This critical review points out the most serious and problematic issues to be found in the literature on the adsorption of dyes on clay minerals. The introduction draws attention to the fundamental problems, namely the insufficient characterization of adsorbents, the influence of impurities on the adsorption of dyes, and the choice of inappropriate models for the description of the very complex systems that clay minerals and their systems represent. This paper discusses the main processes accompanying adsorption in colloidal systems of clay minerals. The relationship between the stability of the colloidal systems and the adsorption of dye molecules is analyzed. The usual methodological procedures for determining and evaluating the adsorption of dyes are critically reviewed. A brief overview and examples of modified clay minerals and complex systems for the adsorption of organic dyes are summarized. This review is a guide for avoiding some faults in characterizing the adsorption of organic dyes on clay minerals, to improve the procedure for determining adsorption, to evaluate results correctly, and to find an appropriate theoretical interpretation. The main message of this article is a critical analysis of the current state of the research in this field, but at the same time, it is a guide on how to avoid the most common problems and mistakes.
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Affiliation(s)
- Juraj Bujdák
- Department of Physical and Theoretical Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, 842 15 Bratislava, Slovakia; ; Tel.: +421-2-9014-9602
- Institute of Inorganic Chemistry, Slovak Academy of Sciences, 845 36 Bratislava, Slovakia
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21
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Sharma G, García-Peñas A, Verma Y, Kumar A, Dhiman P, Stadler FJ. Tailoring Homogeneous Hydrogel Nanospheres by Facile Ultra-Sonication Assisted Cross-Linked Copolymerization for Rhodamine B Dye Adsorption. Gels 2023; 9:770. [PMID: 37888345 PMCID: PMC10606825 DOI: 10.3390/gels9100770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/02/2023] [Accepted: 09/11/2023] [Indexed: 10/28/2023] Open
Abstract
The present paper describes the design of shape-oriented hydrogel nanospheres using a facile ultrasonication-supported crosslinked copolymerization technique. The effect of variable monomer concentration on the homogeneity of hydrogel nanospheres was investigated. The chitosan-cl-poly(MMA) hydrogel nanospheres were well characterized using various techniques such as FTIR, XRD, TGA, SEM, and TEM. The chitosan-cl-poly(MMA) hydrogel nanospheres were studied for their swelling behavior and could potentially be used as a novel adsorbent for rhodamine B dye remediation from aqueous media. The study found that utilizing chitosan-cl-poly(MMA) nanohydrogel spheres at the optimal pH 5 increased RhB dye adsorption capacity from 7.9 to 17.8 mg/g (pH 2 to 5), followed by a slight reduction. Furthermore, when nanohydrogel concentration increased, adsorption capacity dropped from 18.03 to 2.8 mg/g, but adsorption percentage climbed from 90.2% to 97.8%. At an initial dye concentration of 140 mg/L, rhodamine B adsorption achieved 204.3 mg/g in 60 min. The rhodamine B dye adsorption study includes adsorption kinetics, isotherm, and thermodynamics analyses. The interpretation of the adsorption study revealed that Langmuir isotherms fit best with a qmax value of 276.26 mg/g, which is in close approximation with the experimental value, whereas pseudo-second-order kinetics explains the adsorption process rate. The interaction of RhB dye with chitosan-cl-poly(MMA) hydrogel nanospheres involves multiple forces such as electrostatic interactions, hydrogen bonding, van der Waals forces, etc.
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Affiliation(s)
- Gaurav Sharma
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518055, China; (A.K.); (F.J.S.)
- International Research Centre of Nanotechnology for Himalayan Sustainability (IRCNHS), Shoolini University of Biotechnology and Management Sciences, Solan 173229, Himachal Pradesh, India; (Y.V.); (P.D.)
| | - Alberto García-Peñas
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518055, China; (A.K.); (F.J.S.)
- Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Química, IAAB, Universidad Carlos III de Madrid, Avda. de la Universidad, 30, 28911 Madrid, Spain
| | - Yaksha Verma
- International Research Centre of Nanotechnology for Himalayan Sustainability (IRCNHS), Shoolini University of Biotechnology and Management Sciences, Solan 173229, Himachal Pradesh, India; (Y.V.); (P.D.)
| | - Amit Kumar
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518055, China; (A.K.); (F.J.S.)
- International Research Centre of Nanotechnology for Himalayan Sustainability (IRCNHS), Shoolini University of Biotechnology and Management Sciences, Solan 173229, Himachal Pradesh, India; (Y.V.); (P.D.)
| | - Pooja Dhiman
- International Research Centre of Nanotechnology for Himalayan Sustainability (IRCNHS), Shoolini University of Biotechnology and Management Sciences, Solan 173229, Himachal Pradesh, India; (Y.V.); (P.D.)
| | - Florian J. Stadler
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518055, China; (A.K.); (F.J.S.)
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22
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Mashentseva AA, Seitzhapar N, Barsbay M, Aimanova NA, Alimkhanova AN, Zheltov DA, Zhumabayev AM, Temirgaziev BS, Almanov AA, Sadyrbekov DT. Adsorption isotherms and kinetics for Pb(ii) ion removal from aqueous solutions with biogenic metal oxide nanoparticles. RSC Adv 2023; 13:26839-26850. [PMID: 37692348 PMCID: PMC10483273 DOI: 10.1039/d3ra05347d] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 08/24/2023] [Indexed: 09/12/2023] Open
Abstract
This study investigates the sorption removal of lead(ii) ions using zinc oxide (ZnO) and copper(ii) oxide (CuO) nanoparticles synthesized through a wet burning method with the aid of plant extract from Serratula coronata L. The effect of plant collection time on polyphenol content was investigated and optimal conditions were determined. The structural and chemical properties of the nanoparticles were studied by scanning electron microscopy, energy dispersive analysis, X-ray phase analysis, and X-ray photoelectron spectroscopy. A comparative analysis of lead ion sorption on the surface of synthesized nanoparticles was conducted. The kinetic study revealed that the sorption process follows a pseudo-second-order mechanism, and the Freundlich sorption model provides a better fit for the experimental data. ZnO and CuO nanoparticles exhibited significant sorption capacities, with values of 163.6 and 153.8 mg g-1, respectively.
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Affiliation(s)
- Anastassiya A Mashentseva
- The Institute of Nuclear Physics of the Republic of Kazakhstan 050032 Almaty Kazakhstan
- Department of Nuclear Physics, New Materials and Technologies, L.N. Gumilyov Eurasian National University 010008 Astana Kazakhstan
| | - Nurzhigit Seitzhapar
- The Institute of Nuclear Physics of the Republic of Kazakhstan 050032 Almaty Kazakhstan
- Department of Nuclear Physics, New Materials and Technologies, L.N. Gumilyov Eurasian National University 010008 Astana Kazakhstan
| | - Murat Barsbay
- Department of Chemistry, Hacettepe University 06800 Ankara Turkey
| | - Nurgulim A Aimanova
- The Institute of Nuclear Physics of the Republic of Kazakhstan 050032 Almaty Kazakhstan
| | - Assel N Alimkhanova
- The Institute of Nuclear Physics of the Republic of Kazakhstan 050032 Almaty Kazakhstan
- Department of Nuclear Physics, New Materials and Technologies, L.N. Gumilyov Eurasian National University 010008 Astana Kazakhstan
| | - Dmitriy A Zheltov
- The Institute of Nuclear Physics of the Republic of Kazakhstan 050032 Almaty Kazakhstan
| | - Alisher M Zhumabayev
- The Institute of Nuclear Physics of the Republic of Kazakhstan 050032 Almaty Kazakhstan
- Department of Nuclear Physics, New Materials and Technologies, L.N. Gumilyov Eurasian National University 010008 Astana Kazakhstan
| | | | - Alimzhan A Almanov
- The Institute of Nuclear Physics of the Republic of Kazakhstan 050032 Almaty Kazakhstan
- Department of Nuclear Physics, New Materials and Technologies, L.N. Gumilyov Eurasian National University 010008 Astana Kazakhstan
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23
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Martínez-Peñuñuri R, Parga-Torres JR, Valenzuela-García JL, Díaz-Galaviz HJ, González-Zamarripa G, García-Alegría AM. Thermodynamic and Kinetic Aspects of Gold Adsorption in Micrometric Activated Carbon and the Impact of Their Loss in Adsorption, Desorption, and Reactivation Plants. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4961. [PMID: 37512236 PMCID: PMC10381724 DOI: 10.3390/ma16144961] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/30/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023]
Abstract
The production and loss of fine particles of activated carbon (AC) loaded with gold in the adsorption processes is a worldwide problem, mainly due to the behavior of increasing its adsorption capacity with respect to the decrease in particle size, which becomes relevant to determine the thermodynamic and kinetic activity of the gold adsorption and the economic impact of its loss, with the escape towards the later stages of the system of adsorption, desorption, and reactivation (ADR) plants of AC. Through the adsorption of gold in a synthetic medium with sodium cyanide concentration, using different particle sizes, AC weights, and adsorption times, data were generated for analysis by three different isotherm models, resulting in a better tendency for the Freundlich isotherm, from which thermodynamic parameters of ΔG equal to -2.022 kcal/mol, ΔH equal to -16.710 kcal/mol, and ΔS equal to -0.049 kcal/molK were obtained, which shows that it is a spontaneous, exothermic process with a lower degree of disorder. The kinetic analysis was performed with two different models, from which the pseudo-second-order model was used due to a better tendency and displayed a behavior that leaves open the interpretation of the increase in adsorption with respect to the decrease in the AC particle size but demonstrated the importance of recovering these particles in relation to their gold concentration and the economic impact from their poor recovery, which, for this case study, amounted to ~0.3 million dollars per year.
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Affiliation(s)
- Rodrigo Martínez-Peñuñuri
- Department of Materials and Metallurgy, Instituto Tecnológico de Saltillo, Tecnológico Nacional de México, Saltillo 25280, Mexico
| | - Jose R Parga-Torres
- Department of Materials and Metallurgy, Instituto Tecnológico de Saltillo, Tecnológico Nacional de México, Saltillo 25280, Mexico
| | | | - Héctor J Díaz-Galaviz
- Department of Chemical Engineering and Metallurgy, Universidad de Sonora, Hermosillo 83260, Mexico
| | - Gregorio González-Zamarripa
- Department of Materials, Instituto Tecnológico de Monclova, Tecnológico Nacional de México, Monclova 95245, Mexico
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24
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Penchev H, Abdelhamid AE, Ali EA, Budurova D, Grancharov G, Ublekov F, Koseva N, Zaharieva K, El-Sayed AA, Khalil AM. Novel Electrospun Composite Membranes Based on Polyhydroxybutyrate and Poly(vinyl formate) Loaded with Protonated Montmorillonite for Organic Dye Removal: Kinetic and Isotherm Studies. MEMBRANES 2023; 13:582. [PMID: 37367786 DOI: 10.3390/membranes13060582] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/28/2023] [Accepted: 05/31/2023] [Indexed: 06/28/2023]
Abstract
The use of biodegradable polyesters derived from green sources and their combination with natural abundantly layered aluminosilicate clay, e.g., natural montmorillonite, meets the requirements for the development of new sustainable, disposable, and biodegradable organic dye sorbent materials. In this regard, novel electrospun composite fibers, based on poly β-hydroxybutyrate (PHB) and in situ synthesized poly(vinyl formate) (PVF), loaded with protonated montmorillonite (MMT-H) were prepared via electrospinning in the presence of formic acid, a volatile solvent for polymers and a protonating agent for the pristine MMT-Na. The morphology and structure of electrospun composite fibers were investigated through SEM, TEM, AFM, FT-IR, and XRD analyses. The contact angle (CA) measurements showed increased hydrophilicity of the composite fibers incorporated with MMT-H. The electrospun fibrous mats were evaluated as membranes for removing cationic (methylene blue) and anionic (Congo red) dyes. PHB/MMT 20% and PVF/MMT 30% showed significant performance in dye removal compared with the other matrices. PHB/MMT 20% was the best electrospun mat for adsorbing Congo red. The PVF/MMT 30% fibrous membrane exhibited the optimum activity for the adsorption of methylene blue and Congo red dyes.
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Affiliation(s)
- Hristo Penchev
- Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev 103A, 1113 Sofia, Bulgaria
| | - Ahmed E Abdelhamid
- Polymers and Pigments Department, National Research Centre, El-Buhouth Str., Giza 12622, Egypt
| | - Eman A Ali
- Polymers and Pigments Department, National Research Centre, El-Buhouth Str., Giza 12622, Egypt
| | - Dessislava Budurova
- Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev 103A, 1113 Sofia, Bulgaria
| | - Georgy Grancharov
- Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev 103A, 1113 Sofia, Bulgaria
| | - Filip Ublekov
- Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev 103A, 1113 Sofia, Bulgaria
| | - Neli Koseva
- Institute of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev 103A, 1113 Sofia, Bulgaria
| | - Katerina Zaharieva
- Institute of Mineralogy and Crystallography Acad. I. Kostov, Bulgarian Academy of Sciences, Acad. G. Bonchev 107, 1113 Sofia, Bulgaria
| | - Ahmed A El-Sayed
- Photochemistry Department, National Research Centre, El-Buhouth Str., Giza 12622, Egypt
| | - Ahmed M Khalil
- Photochemistry Department, National Research Centre, El-Buhouth Str., Giza 12622, Egypt
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25
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Toma S, Omosebi A, Gao X, Abad K, Bhatnagar S, Qian D, Liu K, Thompson JG. Targeted electrochemical reduction of carcinogenic N-nitrosamines from emission control systems within CO 2 capture plants. CHEMOSPHERE 2023; 333:138915. [PMID: 37172623 DOI: 10.1016/j.chemosphere.2023.138915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 05/08/2023] [Accepted: 05/09/2023] [Indexed: 05/15/2023]
Abstract
N-Nitrosamines are one of the environmentally significant byproducts from aqueous amine-based post-combustion carbon capture systems (CCS) due to their potential risk to human health. Safely mitigating nitrosamines before they are emitted from these CO2 capture systems is therefore a key concern before widescale deployment of CCS can be used to address worldwide decarbonization goals. Electrochemical decomposition is one viable route to neutralize these harmful compounds. The circulating emission control waterwash system, commonly installed at the end of the flue gas treatment trains to minimize amine solvent emissions, plays an important role to capture N-nitrosamines and control their emission into the environment. The waterwash solution is the last point where these compounds can be properly neutralized before becoming an environmental hazard. In this study, the decomposition mechanisms of N-nitrosamines in a simulated CCS waterwash with residual alkanolamines was investigated using several laboratory-scale electrolyzers utilizing carbon xerogel (CX) electrodes. H-cell experiments revealed that N-nitrosamines were decomposed through a reduction reaction and are converted into their corresponding secondary amines thereby neutralizing their environmental impact. Batch-cell experiments statistically examined the kinetic models of N-nitrosamine removal by a combined adsorption and decomposition processes. The cathodic reduction of the N-nitrosamines statistically obeyed the first-order reaction model. Finally, a prototype flow-through reactor using an authentic waterwash was used to successfully target and decompose N-nitrosamines to below the detectable level without degrading the amine solvent compounds allowing them to be return to the CCS and lower the system operating costs. The developed electrolyzer was able to efficiently remove greater than 98% of N-nitrosamines from the waterwash solution without producing any additional environmentally harmful compounds and offers an effective and safe route to mitigate these compounds from CO2 capture systems.
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Affiliation(s)
- Shino Toma
- Center for Applied Energy Research, University of Kentucky, 2540 Research Park Drive, Lexington, KY, 40511, United States
| | - Ayokunle Omosebi
- Center for Applied Energy Research, University of Kentucky, 2540 Research Park Drive, Lexington, KY, 40511, United States
| | - Xin Gao
- Department of Mechanical Engineering, University of Kentucky, 151 Ralph G. Anderson Building, Lexington, KY, 40506, United States
| | - Keemia Abad
- Center for Applied Energy Research, University of Kentucky, 2540 Research Park Drive, Lexington, KY, 40511, United States; Department of Chemistry, University of Kentucky, 125 Chemistry/Physics Building, Lexington, KY, 40506, United States
| | - Saloni Bhatnagar
- Center for Applied Energy Research, University of Kentucky, 2540 Research Park Drive, Lexington, KY, 40511, United States
| | - Dali Qian
- Electron Microscopy Center, College of Engineering, University of Kentucky, ASTeCC Building - A004, Lexington, KY, 40502, United States
| | - Kunlei Liu
- Department of Mechanical Engineering, University of Kentucky, 151 Ralph G. Anderson Building, Lexington, KY, 40506, United States.
| | - Jesse G Thompson
- Center for Applied Energy Research, University of Kentucky, 2540 Research Park Drive, Lexington, KY, 40511, United States; Department of Chemistry, University of Kentucky, 125 Chemistry/Physics Building, Lexington, KY, 40506, United States.
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26
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Pacheco ARF, Cardoso BD, Pires A, Pereira AM, Araújo JP, Carvalho VM, Rodrigues RO, Coutinho PJG, Castelo-Grande T, Augusto PA, Barbosa D, Lima RA, Teixeira SFCF, Rodrigues ARO, Castanheira EMS. Development of pH-Sensitive Magnetoliposomes Containing Shape Anisotropic Nanoparticles for Potential Application in Combined Cancer Therapy. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1051. [PMID: 36985945 PMCID: PMC10054438 DOI: 10.3390/nano13061051] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/06/2023] [Accepted: 03/10/2023] [Indexed: 06/18/2023]
Abstract
Late diagnosis and systemic toxicity associated with conventional treatments make oncological therapy significantly difficult. In this context, nanomedicine emerges as a new approach in the prevention, diagnosis and treatment of cancer. In this work, pH-sensitive solid magnetoliposomes (SMLs) were developed for controlled release of the chemotherapeutic drug doxorubicin (DOX). Shape anisotropic magnetic nanoparticles of magnesium ferrite with partial substitution by calcium (Mg0.75Ca0.25Fe2O4) were synthesized, with and without calcination, and their structural, morphological and magnetic properties were investigated. Their superparamagnetic properties were evaluated and heating capabilities proven, either by exposure to an alternating magnetic field (AMF) (magnetic hyperthermia) or by irradiation with near-infrared (NIR) light (photothermia). The Mg0.75Ca0.25Fe2O4 calcined nanoparticles were selected to integrate the SMLs, surrounded by a lipid bilayer of DOPE:Ch:CHEMS (45:45:10). DOX was encapsulated in the nanosystems with an efficiency above 98%. DOX release assays showed a much more efficient release of the drug at pH = 5 compared to the release kinetics at physiological pH. By subjecting tumor cells to DOX-loaded SMLs, cell viability was significantly reduced, confirming that they can release the encapsulated drug. These results point to the development of efficient pH-sensitive nanocarriers, suitable for a synergistic action in cancer therapy with magnetic targeting, stimulus-controlled drug delivery and dual hyperthermia (magnetic and plasmonic) therapy.
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Affiliation(s)
- Ana Rita F. Pacheco
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- Associate Laboratory LaPMET, 4710-057 Braga, Portugal
| | - Beatriz D. Cardoso
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- Associate Laboratory LaPMET, 4710-057 Braga, Portugal
| | - Ana Pires
- Associate Laboratory LaPMET, 4169-007 Porto, Portugal
- IFIMUP—Instituto de Física dos Materiais, University of Porto, R. Campo Alegre, 4169-007 Porto, Portugal
| | - André M. Pereira
- Associate Laboratory LaPMET, 4169-007 Porto, Portugal
- IFIMUP—Instituto de Física dos Materiais, University of Porto, R. Campo Alegre, 4169-007 Porto, Portugal
| | - João P. Araújo
- Associate Laboratory LaPMET, 4169-007 Porto, Portugal
- IFIMUP—Instituto de Física dos Materiais, University of Porto, R. Campo Alegre, 4169-007 Porto, Portugal
| | - Violeta M. Carvalho
- MEtRICs, Mechanical Engineering Department, University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
- ALGORITMI Center, University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
- Center for MicroElectromechanical Systems (CMEMS-UMinho), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
| | - Raquel O. Rodrigues
- Center for MicroElectromechanical Systems (CMEMS-UMinho), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
| | - Paulo J. G. Coutinho
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- Associate Laboratory LaPMET, 4710-057 Braga, Portugal
| | - Teresa Castelo-Grande
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Paulo A. Augusto
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Domingos Barbosa
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Rui A. Lima
- MEtRICs, Mechanical Engineering Department, University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
- CEFT—Transport Phenomena Research Center, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | | | - Ana Rita O. Rodrigues
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- Associate Laboratory LaPMET, 4710-057 Braga, Portugal
| | - Elisabete M. S. Castanheira
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- Associate Laboratory LaPMET, 4710-057 Braga, Portugal
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27
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Doyo AN, Kumar R, Barakat MA. Facile Synthesis of the Polyaniline@Waste Cellulosic Nanocomposite for the Efficient Decontamination of Copper(II) and Phenol from Wastewater. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1014. [PMID: 36985909 PMCID: PMC10059074 DOI: 10.3390/nano13061014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
The existence of heavy metals and organic pollutants in wastewater is a threat to the ecosystem and a challenge for researchers to remove using common technology. Herein, a facile one-step in situ oxidative polymerization synthesis method has been used to fabricate polyaniline@waste cellulosic nanocomposite adsornt, polyaniline-embedded waste tissue paper (PANI@WTP) to remove copper(II) and phenol from the aqueous solution. The structural and surface properties of the synthesized materials were examined by XRD, FTIR, TEM, and a zeta potential analyzer. The scavenging of the Cu(II) and phenol onto the prepared materials was investigated as a function of interaction time, pollutant concentration, and solution pH. Advanced kinetics and isotherms modeling is used to explore the Cu(II) ion and phenol adsorption mechanisms. The synthesized PANI@WTP adsorbent showed a high intake capacity for Cu(II) than phenol, with the maximum calculated adsorption capacity of 605.20 and 501.23 mg g-1, respectively. The Langmuir equilibrium isotherm model is well-fitted for Cu(II) and phenol adsorption onto the PANI@WTP. The superior scavenging capability of the PANI@WTP for Cu(II) and phenol could be explained based on the host-guest interaction forces and large active sites. Moreover, the efficiency of the PANI@WTP for Cu(II) and phenol scavenging was excellent even after the five cycles of regeneration.
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Liu G, Chen Z, Luo F, Liu T, Xi X, Wang Z, Gao Z, Shao P, Wu D, Luo X, Yang L. One-Step Nickel-Cobalt Alloy Electrodeposition from Spent Lithium-Ion Battery via Synergistic pH Adjustment and Mn2+ Supplementation. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
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Emara AM, Elsharma EM, Abdelmonem IM. Adsorption of radioactive cesium using synthesized chitosan-g-poly(acrylic acid/N-vinylcaprolactam) by γ-irradiation. Radiat Phys Chem Oxf Engl 1993 2023. [DOI: 10.1016/j.radphyschem.2023.110892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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Yaqub M, Nguyen MN, Lee W. Synthesis of heated aluminum oxide particles impregnated with Prussian blue for cesium and natural organic matter adsorption: Experimental and machine learning modeling. CHEMOSPHERE 2023; 313:137336. [PMID: 36427574 DOI: 10.1016/j.chemosphere.2022.137336] [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: 09/08/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
Heated aluminum oxide particles impregnated with Prussian blue (HAOPs-PB) are synthesized for the first time using different molar ratios of aluminum sulfate and PB to improve the adsorption of cesium (133Cs+) and natural organic matter (NOM) from an aqueous solution. The Cs+ adsorption from various aqueous solutions, including surface, tap and deionized water by synthesized HAOPs-PB, is investigated. The influencing factors such as HAOPs-PB mixing ratio, pH and dosage are studied. In addition, pseudo 1st and 2nd order is tested for adsorption kinetics study. A machine learning model is developed using gene expression programming (GEP) to evaluate and optimize the adsorption process for Cs+ and NOM removal. Synthesized adsorbent showed maximum adsorption at a 1:1 M ratio of aluminum sulfate and PB in DI, tap, and surface water. The pseudo 2nd order kinetics model described the Cs + adsorption by HAOPs-PB more accurately that indicating physiochemical adsorption. Adsorption of Cs+ showed an increasing trend with higher HAOPs-PB concentration, while high pH also favored the adsorption. Maximum NOM adsorption is found at a higher HAOPs-PB dosage and a neutral pH value. Furthermore, the proposed GEP model shows outstanding performance for Cs+ adsorption modeling, whereas a modified-GEP model presents promising results for NOM adsorption prediction for testing dataset by learning the relationship between inputs and output with R2 values of 0.9348 and 0.889, respectively.
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Affiliation(s)
- Muhammad Yaqub
- Department of Environmental Engineering, Kumoh National Institute of Technology, 61, Daehak-ro, Gumi 39177, Republic of Korea.
| | - Mai Ngoc Nguyen
- Department of Environmental Engineering, Kumoh National Institute of Technology, 61, Daehak-ro, Gumi 39177, Republic of Korea
| | - Wontae Lee
- Department of Environmental Engineering, Kumoh National Institute of Technology, 61, Daehak-ro, Gumi 39177, Republic of Korea.
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Raveena, Alka, Gandhi N, Kumari P. Efficacious Removal of Flonicamid Insecticide from Water by GO@functionalized Calix[4]pyrrole: Synergistic Effect in Adsorption. ChemistrySelect 2023. [DOI: 10.1002/slct.202203431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Raveena
- Bio-organic material research laboratory Department of Chemistry Deshbandhu College University of Delhi, Kalkaji New Delhi 110019 India
- Department of Chemistry University of Delhi New Delhi 110007 India
| | - Alka
- Bio-organic material research laboratory Department of Chemistry Deshbandhu College University of Delhi, Kalkaji New Delhi 110019 India
| | - Namita Gandhi
- Bio-organic material research laboratory Department of Chemistry Deshbandhu College University of Delhi, Kalkaji New Delhi 110019 India
| | - Pratibha Kumari
- Bio-organic material research laboratory Department of Chemistry Deshbandhu College University of Delhi, Kalkaji New Delhi 110019 India
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Adsorption Characteristics for Cu(II) and Phosphate in Chitosan Beads under Single and Mixed Conditions. Polymers (Basel) 2023; 15:polym15020421. [PMID: 36679301 PMCID: PMC9866462 DOI: 10.3390/polym15020421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/03/2023] [Accepted: 01/12/2023] [Indexed: 01/15/2023] Open
Abstract
Chitosan, a natural organic polymer, has shown bifunctional characteristics in the removal of cationic and anionic contaminants from water and wastewater treatment. In particular, cationic Cu(II) and anionic phosphate can simultaneously interact with chitosan owing to the presence of the amino group in the form of NH2 and NH3+ in chitosan. To gain greater insight into the bifunctional adsorption characteristics of chitosan, its adsorption capacity for Cu(II) and phosphate was tested under single and mixed (co-ion) conditions to investigate the interactions between four types of chitosan beads and NH2 and NH3+. In the single condition, Cu(II) uptake was reduced from 0.243 to 0.0197 mmol/g due to the crosslinking and drying processes, whereas no significant reduction in phosphate uptake was observed, indicating that the crosslinking agent only interacted with NH2 to decrease the number of available adsorption sites for Cu(II). Under the mixed condition, the simultaneous presence of the two ions clearly increased the uptake of each other, with the adsorption of phosphate being more influenced than that of Cu(II). The comparison of the rate constant, k1 or k2, using pseudo-first- and pseudo-second-order models confirmed that phosphate reached equilibrium faster than Cu(II), suggesting that electrostatic interaction was preferred over coordination. In addition, under mixed conditions, co-ion competition slowed down the adsorption kinetics for both Cu(II) and phosphate.
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Muñoz AJ, Espínola F, Ruiz E, Moya M, Castro E. Ag(I) Biosorption and Green Synthesis of Silver/Silver Chloride Nanoparticles by Rhodotorula mucilaginosa 1S1. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:295. [PMID: 36678048 PMCID: PMC9865701 DOI: 10.3390/nano13020295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/28/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
The efficiency of Rhodotorula mucilaginosa 1S1 as an Ag(I) biosorbent and at the same time its ability to biosynthesize recoverable silver nanoparticles is evaluated. Kinetic, equilibrium and thermodynamic tests are carried out for 19 °C, 27 °C and 37 °C, from which the process is adjusted to a pseudo second-order kinetics and to the Freundlich model, while optimal operational conditions are determined at 27 °C. The thermodynamic study shows positive values for enthalpy (ΔH: 133.23 kJ/mol) and entropy (ΔS: 0.4976 kJ/(mol K)), while the Gibbs free energy (ΔG) value is 12.136 kJ/mol. For a metal concentration of 459 mg/L, a maximum biosorption capacity (qm) of 137.2 mg/g at 19 °C is obtained, while for 100 mg/L concentration a qm value of 60.44 mg/g is obtained at the same temperature. The mechanisms involved in the biosorption process are studied by infrared spectroscopy, X-ray diffraction and scanning and transmission electron microscopy, while the nanoparticle synthesis is evaluated by ultraviolet-visible spectrophotometry (UV-vis) and transmission electron microscopy. The results indicate that the biomass is a good biosorbent and also has the ability to synthesize silver nanoparticles (Ag/AgCl) with sizes between 12 nm and 20 nm.
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Affiliation(s)
- Antonio J. Muñoz
- Department of Chemical, Environmental and Materials Engineering, Universidad de Jaén, Campus Las Lagunillas, 23071 Jaén, Spain
| | - Francisco Espínola
- Department of Chemical, Environmental and Materials Engineering, Universidad de Jaén, Campus Las Lagunillas, 23071 Jaén, Spain
- Centre for Advanced Studies in Earth Sciences, Energy and Environment (CEACTEMA), Universidad de Jaén, Campus Las Lagunillas, 23071 Jaén, Spain
| | - Encarnación Ruiz
- Department of Chemical, Environmental and Materials Engineering, Universidad de Jaén, Campus Las Lagunillas, 23071 Jaén, Spain
- Centre for Advanced Studies in Earth Sciences, Energy and Environment (CEACTEMA), Universidad de Jaén, Campus Las Lagunillas, 23071 Jaén, Spain
| | - Manuel Moya
- Department of Chemical, Environmental and Materials Engineering, Universidad de Jaén, Campus Las Lagunillas, 23071 Jaén, Spain
- Centre for Advanced Studies in Earth Sciences, Energy and Environment (CEACTEMA), Universidad de Jaén, Campus Las Lagunillas, 23071 Jaén, Spain
| | - Eulogio Castro
- Department of Chemical, Environmental and Materials Engineering, Universidad de Jaén, Campus Las Lagunillas, 23071 Jaén, Spain
- Centre for Advanced Studies in Earth Sciences, Energy and Environment (CEACTEMA), Universidad de Jaén, Campus Las Lagunillas, 23071 Jaén, Spain
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Xiao Y, Helal AS, Mazario E, Mayoral A, Chevillot-Biraud A, Decorse P, Losno R, Maurel F, Ammar S, Lomas JS, Hémadi M. Functionalized maghemite nanoparticles for enhanced adsorption of uranium from simulated wastewater and magnetic harvesting. ENVIRONMENTAL RESEARCH 2023; 216:114569. [PMID: 36244439 DOI: 10.1016/j.envres.2022.114569] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/05/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Maghemite (γ-Fe2O3) nanoparticles (MNPs) were functionalized with 3-aminopropyltriethoxysilane (APTES) to give APTES@Fe2O3 (AMNP) which was then reacted with diethylenetriamine-pentaacetic acid (DTPA) to give a nanohybrid DTPA-APTES@Fe2O3 (DAMNP). Nano-isothermal titration calorimetry shows that DTPA complexation with uranyl ions in water is exothermic and has a stoichiometry of two DTPA to three uranyl ions. Density functional theory calculations indicate the possibility of several complexes between DTPA and UO22+ with different stoichiometries. Interactions between uranyl ions and DAMNP functional groups are revealed by X-photoelectron and Fourier transform infrared spectroscopies. Spherical aberration-corrected Scanning Transmission Electron Microscopy visualizes uranium on the particle surface. Adsorbent performance metrics were evaluated by batch adsorption studies under different conditions of pH, initial uranium concentration and contact time, and the results expressed in terms of equilibrium adsorption capacities (qe) and partition coefficients (PC). By either criterion, performance increases from MNP to AMNP to DAMNP, with the maximum uptake at pH 5.5 in all cases: MNP, qe = 63 mg g-1, PC = 127 mg g-1 mM-1; AMNP, qe = 165 mg g-1, PC = 584 mg g-1 mM-1; DAMNP, qe = 249 mg g-1, PC = 2318 mg g-1 mM-1 (at 25 °C; initial U concentration 0.63 mM; 5 mg adsorbent in 10 mL of solution; contact time, 3 h). The pH maximum is related to the predominance of mono- and di-cationic uranium species. Uptake by DAMNPs follows a pseudo-first-order or pseudo-second-order kinetic model and fits a variety of adsorption models. The maximum adsorption capacity for DAMNPs is higher than for other functionalized magnetic nanohybrids. This adsorbent can be regenerated and recycled for at least 10 cycles with less than 10% loss in activity, and shows high selectivity. These findings suggest that DAMNP could be a promising adsorbent for the recovery of uranium from nuclear wastewaters.
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Affiliation(s)
- Yawen Xiao
- Université Paris Cité, CNRS, ITODYS, F-75013, Paris, France
| | - Ahmed S Helal
- Université Paris Cité, CNRS, ITODYS, F-75013, Paris, France; Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, USA; Nuclear Materials Authority, P.O. Box 540, El Maadi, Cairo, Egypt
| | - Eva Mazario
- Université Paris Cité, CNRS, ITODYS, F-75013, Paris, France
| | - Alvaro Mayoral
- Universidad de Zaragoza Instituto de Nanociencia de Aragón Zaragoza, Aragon, Spain
| | | | | | - Rémi Losno
- Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, F-75005, Paris, France
| | | | - Souad Ammar
- Université Paris Cité, CNRS, ITODYS, F-75013, Paris, France
| | - John S Lomas
- Université Paris Cité, CNRS, ITODYS, F-75013, Paris, France
| | - Miryana Hémadi
- Université Paris Cité, CNRS, ITODYS, F-75013, Paris, France.
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Aggarwal R, Garg AK, Saini D, Sonkar SK, Sonker AK, Westman G. Cellulose Nanocrystals Derived from Microcrystalline Cellulose for Selective Removal of Janus Green Azo Dye. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c03365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Ruchi Aggarwal
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur302017, India
| | - Anjali Kumari Garg
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur302017, India
| | - Deepika Saini
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur302017, India
| | - Sumit Kumar Sonkar
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur302017, India
| | - Amit Kumar Sonker
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg41296, Sweden
- Wallenberg Wood Science Center (WWSC), Chalmers University of Technology, Gothenburg41296, Sweden
| | - Gunnar Westman
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg41296, Sweden
- Wallenberg Wood Science Center (WWSC), Chalmers University of Technology, Gothenburg41296, Sweden
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36
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Structural characterization of by-product lignins from organosolv rapeseed straw pulping and their application as biosorbents. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03368-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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37
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Nucleophilic modification of flavonoids for enhanced solubility and photostability towards uniform colouration, bio-activation and ultraviolet-proof finishing of silk fabric. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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38
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Adsorption behavior of tannic acid on polyethylenimine-modified montmorillonite with different morphologies. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04550-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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39
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Rapid and selective recovery of Ag(I) from simulative electroplating effluents by sulfydryl-rich covalent organic framework (COF-SH) with high adsorption capacity. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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40
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Studies towards the adsorption of Sulphate Ions from Acid Mine Drainage by modified Attapulgite clays. SOUTH AFRICAN JOURNAL OF CHEMICAL ENGINEERING 2022. [DOI: 10.1016/j.sajce.2022.08.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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41
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Chérif I, Mbarek F, Majdoub FE, Smaoui S, Elhadef K, Chaari M, de la Presa P, Ammar S. ZnO nanoparticles as an antibacterial agent against foodborne pathogens and adsorbent for the removal of Congo red dye: effect of heating time. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-022-02285-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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42
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Nangia S, Katyal D, Warkar SG. Thermodynamics, kinetics and isotherm studies on the removal of anionic Azo-dye (Congo red) using synthesized Chitosan/ Moringa oleifera gum hydrogel composites. SEP SCI TECHNOL 2022. [DOI: 10.1080/01496395.2022.2104731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Sakshi Nangia
- University School of Environment Management, Guru Gobind Singh Indraprastha University, New Delhi, India
| | - Deeksha Katyal
- University School of Environment Management, Guru Gobind Singh Indraprastha University, New Delhi, India
| | - Sudhir G. Warkar
- Department of Applied Chemistry, Delhi Technological University, New Delhi, India
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Ighalo JO, Rangabhashiyam S, Dulta K, Umeh CT, Iwuozor KO, Aniagor CO, Eshiemogie SO, Iwuchukwu FU, Igwegbe CA. Recent advances in hydrochar application for the adsorptive removal of wastewater pollutants. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.06.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abd-Ur-Rehman HM, Deletic A, Zhang K, Prodanovic V. The comparative performance of lightweight green wall media for the removal of xenobiotic organic compounds from domestic greywater. WATER RESEARCH 2022; 221:118774. [PMID: 35759846 DOI: 10.1016/j.watres.2022.118774] [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: 12/15/2021] [Revised: 05/25/2022] [Accepted: 06/16/2022] [Indexed: 06/15/2023]
Abstract
Green walls can provide an aesthetic approach to treat domestic greywater in urban landscapes. However, the widespread adoption of green walls for greywater treatment depends on its performance to remove the emerging contaminants from greywater such as xenobiotic organic compounds (XOCs). In this study, the performance of five lightweight green wall media types (zeolite, perlite, date seeds, coffee grinds, and coco coir) was evaluated for the removal of six XOCs representing a range of hydrophilic to hydrophobic organic micropollutants in domestic greywater (acetaminophen, diethyltoluamide, bisphenol A, oxybenzone, triclosan, nonylphenol). The adsorption affinity of targeted XOCs on different green wall media types, the role of contact time on XOCs removal, and the impact of background pollutants in greywater matrix on the adsorption of XOCs were analysed. Results indicate that removal of XOCs was higher using carbonaceous waste materials (date seeds, coffee grinds, and coco coir) as compared to natural minerals (zeolite and perlite). Moreover, the adsorption of XOCs increased with the increase in pollutant hydrophobicity. All XOCs showed highest removal using coco coir with fast adsorption kinetics, achieving 90% of the removal in 30 min. The only exception was acetaminophen that showed best removal using zeolite but exhibited slow adsorption kinetics with 90% of the removal attained in 24 h. The initial adsorption kinetics (<30 min) of XOCs in greywater were adversely affected by the presence of background pollutants, indicating the need of higher residence time of greywater in green wall system for better removal of XOCs. Based on the findings of this batch study, it is recommended to design a green wall system with more than 30 min of greywater residence time using a mixture of coco coir and zeolite for effective removal of XOCs from domestic greywater.
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Affiliation(s)
- H M Abd-Ur-Rehman
- Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales (UNSW), Sydney, NSW 2052, Australia.
| | - A Deletic
- Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales (UNSW), Sydney, NSW 2052, Australia; Faculty of Engineering, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
| | - K Zhang
- Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales (UNSW), Sydney, NSW 2052, Australia
| | - V Prodanovic
- Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales (UNSW), Sydney, NSW 2052, Australia
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Experimental and modeling analyses of COD removal from industrial wastewater using the TiO 2-chitosan nanocomposites. Sci Rep 2022; 12:11088. [PMID: 35773324 PMCID: PMC9247057 DOI: 10.1038/s41598-022-15387-0] [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: 05/07/2022] [Accepted: 06/23/2022] [Indexed: 11/17/2022] Open
Abstract
In the present study, titanium oxide (TiO2) nanoparticles, chitosan, and several nanocomposites containing different mass dosages of TiO2 and chitosan have been applied as the adsorbent for COD removal from the industrial wastewater (Bouali Sina Petrochemical Company, Iran). The FESEM, XRD, and FTIR tests have been employed to characterize TiO2 nanoparticles, chitosan, and fabricated nanocomposites. Then, the effect of adsorption parameters, including TiO2–chitosan mass ratio (1:1, 1:2, and 2:1), adsorbent content (0.25–2.5 g), temperature (20–50 °C), pH (3–11), solution volume (100–500 mL), and contact time (30–180 min) on the COD reduction has also been monitored both experimentally and numerically. The Box–Behnken design of the experiment approves that TiO2–chitosan (1:1), adsorbent content of 2.5 g, temperature = 20 °C, pH 7.4, solution volume of 100 mL, and contact time = 180 min are the condition that maximizes the COD removal (i.e., 94.5%). Moreover, the Redlich–Peterson and Pseudo-second order models are the best isotherm and kinetic scenarios to describe COD removal’s transient and equilibrium behaviors. The maximum monolayer COD adsorption capacity of the TiO2–chitosan nanocomposite is 89.5 mg g−1. The results revealed that the industrial wastewater COD is better to remove using the TiO2–chitosan (1:1) at temperature = 20 °C.
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Khalil M, Hanif MA, Rashid U, Ahmad J, Alsalme A, Tsubota T. Low-cost novel nano-constructed granite composites for removal of hazardous Terasil dye from wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022:10.1007/s11356-022-21367-8. [PMID: 35710971 DOI: 10.1007/s11356-022-21367-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 06/05/2022] [Indexed: 06/15/2023]
Abstract
The hazardous dyes on mixing with water resources are affecting many life forms. Granite stone is popular worldwide for decorating floors, making other forms of decorative materials and items. Granite stone powder waste can be obtained free of cost from marble factories as factories spend on the disposal of this waste. In the present study, novel granite stone powder waste composite has been prepared and utilized for the effective removal of Terasil dye. Two types of granite including gray granite and white granite were used in pure, calcinized, and chemically modified forms. Freundlich adsorption isotherm model best explained the adsorption mechanism of dye removal using granite composites as compared to other adsorption isothermal models. Characterization techniques like scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy were used for the determination of morphological features and functional groups of granite composites. The obtained results were statistically analyzed using analysis of variance (ANOVA) along with the post hoc Tukey test. An extraordinarily high Terasil dye uptake capacity (more than 400 mg/g) was exhibited by granite composites prepared using sodium metasilicate. The synthesized novel nano-constructed composites provided a viable strategy as compared to the pure granite stone for dye removal from wastewater water.
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Affiliation(s)
- Maria Khalil
- Nano and Biomaterial Lab, Department of Chemistry, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Muhammad Asif Hanif
- Nano and Biomaterial Lab, Department of Chemistry, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Umer Rashid
- Institute of Nanoscience and Nanotechnology (ION2), Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
| | - Junaid Ahmad
- Center of Excellence, Catalysis for Bioenergy and Renewable Chemicals (CBRC), Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Ali Alsalme
- Chemistry Department, College of Science, King Saud University, Riyadh, 1145, Saudi Arabia
| | - Toshiki Tsubota
- Department of Materials Science, Graduate School of Engineering, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata-ku, Kitakyushu, Fukuoka, 804-8550, Japan
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47
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Sulfate removal by barium-terephthalate MOF synthesized from recycled PET-waste using Doehlert design optimization. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109388] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Mubarak MF, Selim H, Elshypany R. Hybrid magnetic core-shell TiO 2@CoFe 3O 4 composite towards visible light-driven photodegradation of Methylene blue dye and the heavy metal adsorption: isotherm and kinetic study. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2022; 20:265-280. [PMID: 35669819 PMCID: PMC9163260 DOI: 10.1007/s40201-021-00774-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 12/25/2021] [Indexed: 05/10/2023]
Abstract
Magnetic core-shell TiO2@CoFe3O4 (TCM) composite photocatalytic particles with a core-shell structure were synthesized by the co-precipitation method as a novel catalyst for methylene blue (MB) dye degradation and adsorption efficiency of heavy-metal ion Pb(II) from aqueous solution. Various analytical techniques have verified the formation of the TCM core-shell through TEM, XRD, FT-IR, Raman, PL, and UV analysis. The presence of TiO2 and cobalt magnetite in the TCM core shell is confirmed by XRD analysis. The formation of a homogenous CoFe3O4shell on TiO2 spheres is confirmed by HR-TEM investigation. TiO2 nanoparticle has a rutile structure with an average crystallite size of about 57.44 and a TCM core-shell of about 64.62 nm. From UV and PL studies, it was found that the core shell absorbs the visible range of the electromagnetic spectrum, which improves the effective separation between photo carriers. This study focused on several factors that influence metal ion adsorption, including initial concentrations, adsorbent dose, pH, and contact time. The TCM nanocomposite successfully separated the heavy metal ion Pb(II) from aqueous solutions, and the model predictions exactly matched the experimental results. For TCM material, the maximum adsorption efficiency for Pb(II) was 33.09 mg/g. The photocatalytic performance of TiO2 and TCM is about 12% and 91% after 60 min for MB dye degradation. It was found that TiO2@CoFe3O4 core-shell nanoparticles perform better as photo catalysts than pure TiO2 and CoFe3O4due to their high efficiency and reusability. Furthermore, the analysis revealed that heavy metal adsorption from aqueous solutions could be reused over seven cycles with no adsorption capacity modification.
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Affiliation(s)
- Mahmoud F. Mubarak
- Petroleum Application Department, Core Lab Analysis Center, Egyptian Petroleum Research Institute, Nasr city, Cairo, P.B. 11727 Egypt
| | - Hanaa Selim
- Analysis and Evaluation Department, Central Lab, Egyptian Petroleum Research Institute, Nasr city, Cairo, P.B. 11727 Egypt
| | - Rania Elshypany
- Analysis and Evaluation Department, Central Lab, Egyptian Petroleum Research Institute, Nasr city, Cairo, P.B. 11727 Egypt
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Senila M, Neag E, Cadar O, Hoaghia MA, Roman M, Moldovan A, Hosu A, Lupas A, Kovacs ED. Characteristics of Volcanic Tuff from Macicasu (Romania) and Its Capacity to Remove Ammonia from Contaminated Air. Molecules 2022; 27:molecules27113503. [PMID: 35684443 PMCID: PMC9182413 DOI: 10.3390/molecules27113503] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 05/18/2022] [Accepted: 05/28/2022] [Indexed: 02/01/2023] Open
Abstract
In the present work, the capability of the volcanic tuff from Macicasu (Romania) to remove ammonia (NH3) from air with different contamination levels during 24 h of adsorption experiments was investigated. The natural zeolitic volcanic tuff was characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), the Brunauer–Emmett–Teller (BET) method, inductively coupled plasma optical emission spectrometry (ICP-OES), and thermogravimetric analysis (TGA). The adsorption capacities varied between 0.022 mg NH3 g−1 zeolite and 0.282 mg NH3 g−1 zeolite, depending on the NH3 concentrations in the air and at the contact time. The nonlinear forms of the Langmuir and Freundlich isotherm models were used to fit the experimental data. Additionally, the adsorption of NH3 was studied using nonlinear pseudo-first-order (PFO), pseudo-second-order (PSO), and Elovich kinetic model. Based on the total volume of pores of used volcanic tuff, the NH3 was removed from the air both due to the physical adsorption of NH3 gas and the ion exchange of NH4+ (resulted from a reaction between NH3 and H2O adsorbed by the zeolite). Depending on the initial NH3 concentration and the amount of volcanic tuff, the NH3 concentrations can be reduced below the threshold of this contaminant in the air. The adsorption capacity of NH3 per unit of zeolite (1 g) varied in the range of 0.022–0.282 mg NH3 g−1 depending on the NH3 concentration in the air.
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Affiliation(s)
- Marin Senila
- INCDO-INOE 2000, Research Institute for Analytical Instrumentation, 67 Donath Street, 400293 Cluj-Napoca, Romania; (E.N.); (O.C.); (M.-A.H.); (M.R.); (A.M.); (E.D.K.)
- Correspondence:
| | - Emilia Neag
- INCDO-INOE 2000, Research Institute for Analytical Instrumentation, 67 Donath Street, 400293 Cluj-Napoca, Romania; (E.N.); (O.C.); (M.-A.H.); (M.R.); (A.M.); (E.D.K.)
| | - Oana Cadar
- INCDO-INOE 2000, Research Institute for Analytical Instrumentation, 67 Donath Street, 400293 Cluj-Napoca, Romania; (E.N.); (O.C.); (M.-A.H.); (M.R.); (A.M.); (E.D.K.)
| | - Maria-Alexandra Hoaghia
- INCDO-INOE 2000, Research Institute for Analytical Instrumentation, 67 Donath Street, 400293 Cluj-Napoca, Romania; (E.N.); (O.C.); (M.-A.H.); (M.R.); (A.M.); (E.D.K.)
| | - Marius Roman
- INCDO-INOE 2000, Research Institute for Analytical Instrumentation, 67 Donath Street, 400293 Cluj-Napoca, Romania; (E.N.); (O.C.); (M.-A.H.); (M.R.); (A.M.); (E.D.K.)
| | - Ana Moldovan
- INCDO-INOE 2000, Research Institute for Analytical Instrumentation, 67 Donath Street, 400293 Cluj-Napoca, Romania; (E.N.); (O.C.); (M.-A.H.); (M.R.); (A.M.); (E.D.K.)
| | - Alexandru Hosu
- GeoPlus Services SRL, 99D Braniste Street, 407310 Gilau, Romania;
| | - Angela Lupas
- Doralex Com SRL, 151A Maramureșului Street, 400268 Cluj-Napoca, Romania;
| | - Emoke Dalma Kovacs
- INCDO-INOE 2000, Research Institute for Analytical Instrumentation, 67 Donath Street, 400293 Cluj-Napoca, Romania; (E.N.); (O.C.); (M.-A.H.); (M.R.); (A.M.); (E.D.K.)
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Sikha S, Mandal B. Ultrasound-Assisted facile synthesis of Ce/Fe nanoparticles impregnated activated carbon for fluoride remediation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120785] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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