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Arif M, Raza H, Haroon SM, Moussa SB, Tahir F, Alzahrani AYA. Silica@poly(chitosan-N-isopropylacrylamide-methacrylic acid) microgels: Extraction of palladium (II) ions and in situ formation of palladium nanoparticles for pollutant reduction. Int J Biol Macromol 2024; 270:132331. [PMID: 38750843 DOI: 10.1016/j.ijbiomac.2024.132331] [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: 03/31/2024] [Revised: 05/05/2024] [Accepted: 05/10/2024] [Indexed: 05/18/2024]
Abstract
Most of the transition metal ions and organic dyes are toxic in nature. Therefore, their removal from water is imperative for human health. For this purpose, various types of systems have been developed to tackle either transition metal ions or organic dyes individually. A core-shell microgel system is introduced which is capable of effectively removing both types (toxic organic dyes and transition metal ions) of pollutants. A long-rod-shaped silica@poly(chitosan-N-isopropylacrylamide-methacrylic acid) S@P(CS-NIPAM-MAA) S@P(CNM) core-shell microgel system was developed by free radical precipitation polymerization method (FRPPM). S@P(CNM) was utilized as an adsorbent for extracting palladium (II) (Pd (II)) ions from water under different concentrations of S@P(CNM), several agitation times, palladium (II) ion content, and pH levels. The adsorption data of Pd (II) ions on S@P(CNM) was evaluated by various adsorption isotherms. The kinetic study was investigated by employing pseudo-2nd order (Ps2O), Elovich model (ElM), intra-particle diffusion (IPDM), and pseudo-1st order (Ps1O). Additionally, palladium nanoparticles (Pd NPs) were generated via in-situ reduction of adsorbed Pd (II) ions within the P(CNM) shell region of S@P(CNM). The resulting Pd NPs loaded S@P(CNM) exhibited the capability to reduce organic pollutants like methyl orange (MeO), 4-nitrophenol (4NiP), methylene blue (MeB), and Rhodamine B (RhB) from aqueous medium. 0.766 min-1, 0.433 min-1, 0.682 min-1, and 1.140 min-1 were the values of pseudo 1st order rate constant (kobs) for catalytic reduction of MeB, 4NiP, MeO, and RhB respectively. The S@Pd-P(CNM) system exhibits significant catalytic potential for various organic transformations.
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Affiliation(s)
- Muhammad Arif
- Department of Chemistry, School of Science, University of Management and Technology, Lahore 54770, Pakistan.
| | - Hamid Raza
- Department of Chemistry, School of Science, University of Management and Technology, Lahore 54770, Pakistan
| | - Shah M Haroon
- Department of Chemistry, School of Science, University of Management and Technology, Lahore 54770, Pakistan
| | - Sana Ben Moussa
- Department of Chemistry, Faculty of Science and Arts, Mohail Asser, King Khalid University, Abha 61413, Saudi Arabia
| | - Fatima Tahir
- Department of Chemistry, School of Science, University of Management and Technology, Lahore 54770, Pakistan
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Nyabadza A, McCarthy É, Makhesana M, Heidarinassab S, Plouze A, Vazquez M, Brabazon D. A review of physical, chemical and biological synthesis methods of bimetallic nanoparticles and applications in sensing, water treatment, biomedicine, catalysis and hydrogen storage. Adv Colloid Interface Sci 2023; 321:103010. [PMID: 37804661 DOI: 10.1016/j.cis.2023.103010] [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: 06/27/2023] [Revised: 08/30/2023] [Accepted: 09/24/2023] [Indexed: 10/09/2023]
Abstract
This article provides an in-depth analysis of various fabrication methods of bimetallic nanoparticles (BNP), including chemical, biological, and physical techniques. The review explores BNP's diverse uses, from well-known applications such as sensing water treatment and biomedical uses to less-studied areas like breath sensing for diabetes monitoring and hydrogen storage. It cites results from over 1000 researchers worldwide and >300 peer-reviewed articles. Additionally, the article discusses current trends, actionable recommendations, and the importance of synthetic analysis for industry players looking to optimize manufacturing techniques for specific applications. The article also evaluates the pros and cons of various fabrication methods, highlighting the potential of plant extract synthesis for mass production of capped BNPs. However, it warns that this method may not be suitable for certain applications requiring ligand-free surfaces. In contrast, physical methods like laser ablation offer better control and reactivity, especially for applications where ligand-free surfaces are critical. The report underscores the environmental benefits of plant extract synthesis compared to chemical methods that use hazardous chemicals and pose risks to extraction, production, and disposal. The article emphasizes the need for life cycle assessment (LCA) articles in the literature, given the growing volume of research on nanotechnology materials. This article caters to researchers at all stages and applies to various fields applying nanomaterials.
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Affiliation(s)
- Anesu Nyabadza
- I-Form Advanced Manufacturing Centre Research, Dublin City University, Glasnevin, Dublin 9, Ireland; EPSRC & SFI Centre for Doctoral Training (CDT) in Advanced Metallic Systems, School of Mechanical & Manufacturing Engineering, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland; Advanced Processing Technology Research Centre, Dublin City University, Glasnevin, Dublin 9, Ireland.
| | - Éanna McCarthy
- I-Form Advanced Manufacturing Centre Research, Dublin City University, Glasnevin, Dublin 9, Ireland; Advanced Processing Technology Research Centre, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Mayur Makhesana
- Mechanical Engineering Department, Institute of Technology, Nirma University, Ahmedabad, Gujarat 382481, India
| | - Saeid Heidarinassab
- I-Form Advanced Manufacturing Centre Research, Dublin City University, Glasnevin, Dublin 9, Ireland; EPSRC & SFI Centre for Doctoral Training (CDT) in Advanced Metallic Systems, School of Mechanical & Manufacturing Engineering, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland; Advanced Processing Technology Research Centre, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Anouk Plouze
- Advanced Processing Technology Research Centre, Dublin City University, Glasnevin, Dublin 9, Ireland; Conservatoire National des arts et Métiers (CNAM), 61 Rue du Landy, 93210 Saint-Denis, France
| | - Mercedes Vazquez
- I-Form Advanced Manufacturing Centre Research, Dublin City University, Glasnevin, Dublin 9, Ireland; EPSRC & SFI Centre for Doctoral Training (CDT) in Advanced Metallic Systems, School of Mechanical & Manufacturing Engineering, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland; Advanced Processing Technology Research Centre, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Dermot Brabazon
- I-Form Advanced Manufacturing Centre Research, Dublin City University, Glasnevin, Dublin 9, Ireland; EPSRC & SFI Centre for Doctoral Training (CDT) in Advanced Metallic Systems, School of Mechanical & Manufacturing Engineering, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland; Advanced Processing Technology Research Centre, Dublin City University, Glasnevin, Dublin 9, Ireland
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Huang Y, Liu C, Qin L, Xie M, Xu Z, Yu Y. Efficient Adsorption Capacity of MgFe-Layered Double Hydroxide Loaded on Pomelo Peel Biochar for Cd (II) from Aqueous Solutions: Adsorption Behaviour and Mechanism. Molecules 2023; 28:molecules28114538. [PMID: 37299014 DOI: 10.3390/molecules28114538] [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: 05/09/2023] [Revised: 05/29/2023] [Accepted: 06/01/2023] [Indexed: 06/12/2023] Open
Abstract
A novel pomelo peel biochar/MgFe-layered double hydroxide composite (PPBC/MgFe-LDH) was synthesised using a facile coprecipitation approach and applied to remove cadmium ions (Cd (II)). The adsorption isotherm demonstrated that the Cd (II) adsorption by the PPBC/MgFe-LDH composite fit the Langmuir model well, and the adsorption behaviour was a monolayer chemisorption. The maximum adsorption capacity of Cd (II) was determined to be 448.961 (±12.3) mg·g-1 from the Langmuir model, which was close to the actual experimental adsorption capacity 448.302 (±1.41) mg·g-1. The results also demonstrated that the chemical adsorption controlled the rate of reaction in the Cd (II) adsorption process of PPBC/MgFe-LDH. Piecewise fitting of the intra-particle diffusion model revealed multi-linearity during the adsorption process. Through associative characterization analysis, the adsorption mechanism of Cd (II) of PPBC/MgFe-LDH involved (i) hydroxide formation or carbonate precipitation; (ii) an isomorphic substitution of Fe (III) by Cd (II); (iii) surface complexation of Cd (II) by functional groups (-OH); and (iv) electrostatic attraction. The PPBC/MgFe-LDH composite demonstrated great potential for removing Cd (II) from wastewater, with the advantages of facile synthesis and excellent adsorption capacity.
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Affiliation(s)
- Yongxiang Huang
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
- Guangxi Key Laboratory of Theory & Technology for Environmental Pollution Control, Guilin University of Technology, Guilin 541004, China
| | - Chongmin Liu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
- Guangxi Key Laboratory of Theory & Technology for Environmental Pollution Control, Guilin University of Technology, Guilin 541004, China
| | - Litang Qin
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
- Guangxi Key Laboratory of Theory & Technology for Environmental Pollution Control, Guilin University of Technology, Guilin 541004, China
| | - Mingqi Xie
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
- Guangxi Key Laboratory of Theory & Technology for Environmental Pollution Control, Guilin University of Technology, Guilin 541004, China
| | - Zejing Xu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
- Guangxi Key Laboratory of Theory & Technology for Environmental Pollution Control, Guilin University of Technology, Guilin 541004, China
| | - Youkuan Yu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China
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Drużyński S, Mazurek K, Kiełkowska U, Wróbel-Kaszanek A, Igliński B. Physicochemical Properties and Application of Silica-Doped Biochar Composites as Efficient Sorbents of Copper from Tap Water. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2794. [PMID: 37049088 PMCID: PMC10096430 DOI: 10.3390/ma16072794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 03/28/2023] [Accepted: 03/30/2023] [Indexed: 06/19/2023]
Abstract
This article concerns research on new sorption materials based on silica-doped activated carbon. A two-stage synthesis involved pyrolysis of plant material impregnated in a water glass solution, followed by hydrothermal activation of the pyrolysate in KOH solution. The resulting composite can be used as a sorbent in drinking water filters. The proposed method of synthesis enables the design of materials with a surface area of approximately 150 m2·g-1, whose chemical composition and structure were confirmed by scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS), X-ray diffraction (XRD), thermogravimetry/differential thermal analysis (TG/DTA) and Fourier-transform infrared spectroscopy (FTIR). The sorption properties of the obtained materials were determined relative to copper ions using the batch experiment method. The optimal operating parameters of the obtained materials relative to copper ions are T = 313.15 K, pH = 5, S:L ratio = 4 g·dm-3 and t = 120 min. The research shows that the sorption kinetics of copper ions can be described by a pseudo-second-order model. The plotted copper(II) sorption isotherm clearly indicates the Langmuir model. Under optimal conditions, the maximum sorption of copper ions was 37.74 mg·g-1, which is a satisfactory result and confirms the possibility of using the obtained material in drinking water filters.
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Qu N, Chen M, Liao M, Cheng Y, Lai Z, Zhou F, Zhu J, Liu Y, Zhang L. Accelerating Density Functional Calculation of Adatom Adsorption on Graphene via Machine Learning. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2633. [PMID: 37048928 PMCID: PMC10095669 DOI: 10.3390/ma16072633] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 03/20/2023] [Accepted: 03/22/2023] [Indexed: 06/19/2023]
Abstract
Graphene has attracted significant interest due to its unique properties. Herein, we built an adsorption structure selection workflow based on a density functional theory (DFT) calculation and machine learning to provide a guide for the interfacial properties of graphene. There are two main parts in our workflow. One main part is a DFT calculation routine to generate a dataset automatically. This part includes adatom random selection, modeling adsorption structures automatically, and a calculation of adsorption properties. It provides the dataset for the second main part in our workflow, which is a machine learning model. The inputs are atomic characteristics selected by feature engineering, and the network features are optimized by a genetic algorithm. The mean percentage error of our model was below 35%. Our routine is a general DFT calculation accelerating routine, which could be applied to many other problems. An attempt on graphene/magnesium composites design was carried out. Our predicting results match well with the interfacial properties calculated by DFT. This indicated that our routine presents an option for quick-design graphene-reinforced metal matrix composites.
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Affiliation(s)
- Nan Qu
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Mo Chen
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Mingqing Liao
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Yuan Cheng
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150001, China
| | - Zhonghong Lai
- Center of Analysis, Measurement and Computing, Harbin Institute of Technology, Harbin 150001, China
| | - Fei Zhou
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Jingchuan Zhu
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Yong Liu
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Lin Zhang
- Biological Physics, Department of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL, UK
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Anaerobic Membrane Bioreactor (AnMBR) for the Removal of Dyes from Water and Wastewater: Progress, Challenges, and Future Perspectives. Processes (Basel) 2023. [DOI: 10.3390/pr11030855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
Abstract
The presence of dyes in aquatic environments can have harmful effects on aquatic life, including inhibiting photosynthesis, decreasing dissolved oxygen levels, and altering the behavior and reproductive patterns of aquatic organisms. In the initial phase of this review study, our aim was to examine the categories and properties of dyes as well as the impact of their toxicity on aquatic environments. Azo, phthalocyanine, and xanthene are among the most frequently utilized dyes, almost 70–80% of used dyes, in industrial processes and have been identified as some of the most commonly occurring dyes in water bodies. Apart from that, the toxicity effects of dyes on aquatic ecosystems were discussed. Toxicity testing relies heavily on two key measures: the LC50 (half-lethal concentration) and EC50 (half-maximal effective concentration). In a recent study, microalgae exposed to Congo Red displayed a minimum EC50 of 4.8 mg/L, while fish exposed to Disperse Yellow 7 exhibited a minimum LC50 of 0.01 mg/L. Anaerobic membrane bioreactors (AnMBRs) are a promising method for removing dyes from water bodies. In the second stage of the study, the effectiveness of different AnMBRs in removing dyes was evaluated. Hybrid AnMBRs and AnMBRs with innovative designs have shown the capacity to eliminate dyes completely, reaching up to 100%. Proteobacteria, Firmicutes, and Bacteroidetes were found to be the dominant bacterial phyla in AnMBRs applied for dye treatment. However, fouling has been identified as a significant drawback of AnMBRs, and innovative designs and techniques are required to address this issue in the future.
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7
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A tutorial review on bimetallic nanoparticles loaded in smart organic polymer microgels/hydrogels. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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8
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Shahzadi T, Iqbal S, Riaz T, Zaib M. A comparative study based on localized surface plasmon resonance optical characteristics of green synthesized nanoparticles towards spectrophotometric determination of cupric ions. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2022. [DOI: 10.1080/16583655.2022.2123206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Tayyaba Shahzadi
- Department of Chemistry, Government College Women University, Sialkot, Pakistan
| | - Shazia Iqbal
- Department of Chemistry, Government College Women University, Sialkot, Pakistan
| | - Tauheeda Riaz
- Department of Chemistry, Government College Women University, Sialkot, Pakistan
| | - Maria Zaib
- Department of Chemistry, University of Jhang, Jhang, Pakistan
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9
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Rando G, Sfameni S, Plutino MR. Development of Functional Hybrid Polymers and Gel Materials for Sustainable Membrane-Based Water Treatment Technology: How to Combine Greener and Cleaner Approaches. Gels 2022; 9:gels9010009. [PMID: 36661777 PMCID: PMC9857570 DOI: 10.3390/gels9010009] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 12/19/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022] Open
Abstract
Water quality and disposability are among the main challenges that governments and societies will outside during the next years due to their close relationship to population growth and urbanization and their direct influence on the environment and socio-economic development. Potable water suitable for human consumption is a key resource that, unfortunately, is strongly limited by anthropogenic pollution and climate change. In this regard, new groups of compounds, referred to as emerging contaminants, represent a risk to human health and living species; they have already been identified in water bodies as a result of increased industrialization. Pesticides, cosmetics, personal care products, pharmaceuticals, organic dyes, and other man-made chemicals indispensable for modern society are among the emerging pollutants of difficult remediation by traditional methods of wastewater treatment. However, the majority of the currently used waste management and remediation techniques require significant amounts of energy and chemicals, which can themselves be sources of secondary pollution. Therefore, this review reported newly advanced, efficient, and sustainable techniques and approaches for water purification. In particular, new advancements in sustainable membrane-based filtration technologies are discussed, together with their modification through a rational safe-by-design to modulate their hydrophilicity, porosity, surface characteristics, and adsorption performances. Thus, their preparation by the use of biopolymer-based gels is described, as well as their blending with functional cross-linkers or nanofillers or by advanced and innovative approaches, such as electrospinning.
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Affiliation(s)
- Giulia Rando
- Department of Chemical, Biological, Pharmaceutical and Analytical Sciences (ChiBioFarAm), University of Messina, 98166 Messina, Italy
- Institute for the Study of Nanostructured Materials, ISMN—CNR, Palermo, c/o Department of ChiBioFarAm, University of Messina, 98166 Messina, Italy
| | - Silvia Sfameni
- Institute for the Study of Nanostructured Materials, ISMN—CNR, Palermo, c/o Department of ChiBioFarAm, University of Messina, 98166 Messina, Italy
- Department of Engineering, University of Messina, Contrada di Dio, S. Agata, 98166 Messina, Italy
| | - Maria Rosaria Plutino
- Institute for the Study of Nanostructured Materials, ISMN—CNR, Palermo, c/o Department of ChiBioFarAm, University of Messina, 98166 Messina, Italy
- Correspondence: ; Tel.: +39-0906765713
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A Review on Polyacrylonitrile as an Effective and Economic Constituent of Adsorbents for Wastewater Treatment. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248689. [PMID: 36557823 PMCID: PMC9784622 DOI: 10.3390/molecules27248689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/22/2022] [Accepted: 11/25/2022] [Indexed: 12/14/2022]
Abstract
Water gets polluted due to the dumping of untreated industrial waste into bodies of water, particularly those containing heavy metals and dyes. Industrial water contains both inorganic and organic wastes. Numerous adsorbents that are inexpensive and easily available can be used to address the issue of water deterioration. This review report is focused on polyacrylonitrile as an efficient constituent of adsorbents to extract toxic ions and dyes. It discusses the various formulations of polyacrylonitrile, such as ion exchange resins, chelating resins, fibers, membranes, and hydrogels, synthesized through different polymerization methods, such as suspension polymerization, electrospinning, grafting, redox, and emulsion polymerization. Moreover, regeneration of adsorbent and heavy metal ions makes the adsorption process more cost-effective and efficient. The literature reporting successful regeneration of the adsorbent is included. The factors affecting the performance and outcomes of the adsorption process are also discussed.
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Ambreen J, Al-Harbi F, Sakhawat H, Ajmal M, Naeem H, Farooqi ZH, Batool N, Siddiq M. Fabrication of poly (N-vinylcaprolactam-co-acrylic acid)-silver nanoparticles composite microgel with substantial potential of hydrogen peroxide sensing and catalyzing the reduction of water pollutants. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118931] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Seida Y, Tokuyama H. Hydrogel Adsorbents for the Removal of Hazardous Pollutants—Requirements and Available Functions as Adsorbent. Gels 2022; 8:gels8040220. [PMID: 35448121 PMCID: PMC9028382 DOI: 10.3390/gels8040220] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 03/28/2022] [Accepted: 03/30/2022] [Indexed: 02/04/2023] Open
Abstract
Over the last few decades, various adsorption functions of polymer hydrogels for the removal of hazardous pollutants have been developed. The performance of hydrogel adsorbents depends on the constituents of the gels and the functions produced by the polymer networks of the gels. Research on hydrogels utilizing the characteristic functions of polymer networks has increased over the last decade. The functions of polymer networks are key to the development of advanced adsorbents for the removal of various pollutants. No review has discussed hydrogel adsorbents from the perspective of the roles and functions of polymer networks in hydrogels. This paper briefly reviews the basic requirements of adsorbents and the general characteristics of hydrogels as adsorbents. Thereafter, hydrogels are reviewed on the basis of the roles and functions of the polymer networks in them for the removal of hazardous pollutants by introducing studies published over the last decade. The application of hydrogels as adsorbents for the removal of hazardous pollutants is discussed as well.
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Affiliation(s)
- Yoshimi Seida
- Natural Science Laboratory, Toyo University, 5-28-20 Hakusan, Bunkyo-ku, Tokyo 112-8606, Japan
- Correspondence: ; Tel.: +81-3-3945-4894
| | - Hideaki Tokuyama
- Department of Chemical Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo 184-8588, Japan;
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Mahmoud MA. Separation of Cd (II) onto Polypyrrole nitrogen porous carbon composite in the continuous column system. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2022. [DOI: 10.1080/16583655.2021.1978811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Mohamed Ahmed Mahmoud
- Chemical Engineering Department, College of Engineering, Jazan University, Jazan, Saudi Arabia
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14
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Arif M. Complete life of cobalt nanoparticles loaded into cross-linked organic polymers: a review. RSC Adv 2022; 12:15447-15460. [PMID: 35693224 PMCID: PMC9121440 DOI: 10.1039/d2ra01058e] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 05/04/2022] [Indexed: 12/26/2022] Open
Abstract
The synthesis and use of Co nanoparticles loaded into cross-linked polymers for generation of hydrogen is discussed in detail. The factors affecting hydrogen production have been discussed briefly. The catalytic reduction of dyes and nitroarenes is also discussed in detail.
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Affiliation(s)
- Muhammad Arif
- Department of Chemistry, School of Science, University of Management and Technology, Lahore 54770, Pakistan
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15
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Mourdikoudis S, Kostopoulou A, LaGrow AP. Magnetic Nanoparticle Composites: Synergistic Effects and Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2004951. [PMID: 34194936 PMCID: PMC8224446 DOI: 10.1002/advs.202004951] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Indexed: 05/17/2023]
Abstract
Composite materials are made from two or more constituent materials with distinct physical or chemical properties that, when combined, produce a material with characteristics which are at least to some degree different from its individual components. Nanocomposite materials are composed of different materials of which at least one has nanoscale dimensions. Common types of nanocomposites consist of a combination of two different elements, with a nanoparticle that is linked to, or surrounded by, another organic or inorganic material, for example in a core-shell or heterostructure configuration. A general family of nanoparticle composites concerns the coating of a nanoscale material by a polymer, SiO2 or carbon. Other materials, such as graphene or graphene oxide (GO), are used as supports forming composites when nanoscale materials are deposited onto them. In this Review we focus on magnetic nanocomposites, describing their synthetic methods, physical properties and applications. Several types of nanocomposites are presented, according to their composition, morphology or surface functionalization. Their applications are largely due to the synergistic effects that appear thanks to the co-existence of two different materials and to their interface, resulting in properties often better than those of their single-phase components. Applications discussed concern magnetically separable catalysts, water treatment, diagnostics-sensing and biomedicine.
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Affiliation(s)
- Stefanos Mourdikoudis
- Biophysics GroupDepartment of Physics and AstronomyUniversity College LondonLondonWC1E 6BTUK
- UCL Healthcare Biomagnetic and Nanomaterials Laboratories21 Albemarle StreetLondonW1S 4BSUK
| | - Athanasia Kostopoulou
- Institute of Electronic Structure and Laser (IESL)Foundation for Research and Technology‐Hellas (FORTH)100 Nikolaou PlastiraHeraklionCrete70013Greece
| | - Alec P. LaGrow
- International Iberian Nanotechnology LaboratoryBraga4715‐330Portugal
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Tahir F, Begum R, Wu W, Irfan A, Farooqi ZH. Physicochemical aspects of inorganic nanoparticles stabilized in N-vinyl caprolactam based microgels for various applications. RSC Adv 2020; 11:978-995. [PMID: 35423699 PMCID: PMC8693434 DOI: 10.1039/d0ra09327k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 11/30/2020] [Indexed: 11/21/2022] Open
Abstract
The vinyl caprolactam (VCL) based microgel system has become the center of great attention due to its versatile properties. Copolymerization of VCL with an ionic monomer imparts pH responsive properties into the microgel system in addition to thermo-sensitivity. Stimuli responsive behavior of VCL-based microgels makes them prospective and appealing candidates for practical applications covering the fields of drug delivery, catalysis and optical devices. In the last few years, VCL-based microgels have been used as microreactors and stabilizers for the synthesis and stabilization of inorganic nanoparticles to obtain hybrid microgels. The present review article provides a summary of the present-day progress of fabrication, stabilization, categorization and analysis of VCL-based microgels and their hybrids with different morphologies. The stimuli responsive properties and applications of VCL-based hybrid microgels have been reviewed critically. The remaining problems which need to be addressed have been pointed out for further advancement in this field.
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Affiliation(s)
- Fatima Tahir
- Institute of Chemistry, University of the Punjab New Campus Lahore 54590 Pakistan
| | - Robina Begum
- Institute of Chemistry, University of the Punjab New Campus Lahore 54590 Pakistan
| | - Weitai Wu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University Xiamen Fujian 361005 China
| | - Ahmad Irfan
- Research Center for Advanced Materials Science, Faculty of Science, King Khalid University Abha 61413 Saudi Arabia
- Department of Chemistry, Faculty of Science, King Khalid University Abha 61413 Saudi Arabia
| | - Zahoor H Farooqi
- Institute of Chemistry, University of the Punjab New Campus Lahore 54590 Pakistan
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17
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Lee HJ, Choi WS. 2D and 3D Bulk Materials for Environmental Remediation: Air Filtration and Oil/Water Separation. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E5714. [PMID: 33333822 PMCID: PMC7765286 DOI: 10.3390/ma13245714] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/02/2020] [Accepted: 12/09/2020] [Indexed: 01/17/2023]
Abstract
Air and water pollution pose an enormous threat to human health and ecosystems. In particular, particulate matter (PM) and oily wastewater can cause serious environmental and health concerns. Thus, controlling PM and oily wastewater has been a great challenge. Various techniques have been reported to effectively remove PM particles and purify oily wastewater. In this article, we provide a review of the recent advancements in air filtration and oil/water separation using two- and three-dimensional (2D and 3D) bulk materials. Our review covers the advantages, characteristics, limitations, and challenges of air filters and oil/water separators using 2D and 3D bulk materials. In each section, we present representative works in detail and describe the concepts, backgrounds, employed materials, fabrication methods, and characteristics of 2D and 3D bulk material-based air filters and oil/water separators. Finally, the challenges, technical problems, and future research directions are briefly discussed for each section.
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Affiliation(s)
- Ha-Jin Lee
- Western Seoul Center, Korea Basic Science Institute, 150 Bugahyun-ro, Seoudaemun-gu, Seoul 120-140, Korea;
| | - Won San Choi
- Department of Chemical and Biological Engineering, Hanbat National University, 125 Dongseodaero, Yuseong-gu, Daejeon 305-719, Korea
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18
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Naseem K, Farooqi ZH, Begum R, Ur Rehman MZ, Ghufran M, Wu W, Najeeb J, Irfan A. Synthesis and characterization of poly(N-isopropylmethacrylamide-acrylic acid) smart polymer microgels for adsorptive extraction of copper(II) and cobalt(II) from aqueous medium: kinetic and thermodynamic aspects. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:28169-28182. [PMID: 32415448 DOI: 10.1007/s11356-020-09145-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 04/30/2020] [Indexed: 06/11/2023]
Abstract
Extraction of toxic heavy metal ions from aqueous medium using poly(N-isopropylmethacrylamide-acrylic acid) (P(NiPmA-Ac)) microgels as adsorbent has been investigated in present study. P(NiPmA-Ac) microgel particles were prepared by free radical precipitation polymerization in aqueous medium. Morphology and size of the prepared microgel particles was investigated by transmission electron microscopy (TEM). The Fourier transform infrared (FT-IR) analysis of pure and metal ion-loaded microgel particles was performed to confirm the presence of various functionalities of microgel particles and their interaction with metal ions extracted from aqueous medium. Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) were used to investigate the thermal stability and thermal behavior of pure and metal ion-loaded microgel particles. Contents of metal ions loaded into microgel particles were determined by TGA analysis. It was observed that P(NiPmA-Ac) particles have a potential to extract Cu2+ and Co2+ ions from aqueous medium. The Freundlich adsorption isotherm model best interprets the adsorption process as compared with the Langmuir model. Value of R2 according to the Freundlich adsorption isotherm was found to be 0.994 and 0.993 for Cu2+ and Co2+ ions, respectively. Adsorption process was followed by pseudo second order kinetics for Cu2+ and Co2+ ions with R2 values of 0.999 for both metal ions. Thermodynamic study showed that adsorption process was spontaneous, feasible, and endothermic in nature. Entropy was decreased at adsorbate-adsorbent interface during adsorption process. Adsorbent was recycled and reused for removal of Cu2+ ions, and adsorption efficiency was found to be maintained up to three cycles. Microgel particles also have ability to extract Cu2+ ions efficiently from electroplating wastewater. Graphical abstract.
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Affiliation(s)
- Khalida Naseem
- Institute of Chemistry, University of the Punjab, New Campus, Lahore, 54590, Pakistan
- Faculty of Sciences, University of Central Punjab, Lahore, 54000, Pakistan
| | - Zahoor H Farooqi
- Institute of Chemistry, University of the Punjab, New Campus, Lahore, 54590, Pakistan.
| | - Robina Begum
- Institute of Chemistry, University of the Punjab, New Campus, Lahore, 54590, Pakistan.
| | - Muhammad Zia Ur Rehman
- Department of Chemical Engineering, University of Engineering and Technology, Lahore, 54890, Pakistan
| | - Maida Ghufran
- Department of Chemistry, Kinnaird College for Women, Lahore, 54000, Pakistan
| | - Weitai Wu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, 361005, China
| | - Jawayria Najeeb
- Institute of Chemistry, University of the Punjab, New Campus, Lahore, 54590, Pakistan
| | - Ahmad Irfan
- Research Center for Advanced Materials Science, King Khalid University, Abha, Aseer, 61413, Saudi Arabia
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Aseer, 61413, Saudi Arabia
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Ilyasov LO, Ogawa K, Panova IG, Yaroslavov AA, Adachi Y. Initial-Stage Dynamics of Flocculation of Cationic Colloidal Particles Induced by Negatively Charged Polyelectrolytes, Polyelectrolyte Complexes, and Microgels Studied Using Standardized Colloid Mixing. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:8375-8383. [PMID: 32608987 DOI: 10.1021/acs.langmuir.0c00619] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The initial-stage dynamics of flocculation of positively charged latex particles induced by polyelectrolytes (PEs) and polyelectrolyte complexes (PECs), composed of linear polyacrylic acid (PAA) and a PAA-based hydrophilic microgel (PAA#) with a small amount of a linear polycation, was comparatively analyzed by applying the standardized colloidal mixing procedure. Based on the rate of flocculation, this method allows us to investigate the dynamics of flocculation immediately after the onset. In addition to confirming the prediction made regarding the initial rate of flocculation with linear polyanions-which was mostly similar to that observed in negatively charged colloids with positively charged PEs-we have confirmed two important new results regarding the microgel: (1) the increase of the initial rate is less markedly affected by the microgel concentration than by the linear polymer concentration, which can be explained by the fact that the three-dimensional (3D) cross-linked structure of the microgel that does not deform as easily as the linear structure upon touching the colloidal surface; and (2) there is a remarkable increase of the initial rate due to the contribution of instant aggregation of the negatively charged microgel induced by the polycation adsorption. These results suggest the significance of state and formation dynamics of PECs prior to reaching the surface of targeted colloidal particles for the intension of effective flocculation. These aspects are not treated so far in the dynamic process of flocculation.
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Affiliation(s)
- Leonid O Ilyasov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1-3, Moscow 119991, Russia
| | - Kazuyoshi Ogawa
- Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Irina G Panova
- Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1-3, Moscow 119991, Russia
| | - Alexander A Yaroslavov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1-3, Moscow 119991, Russia
| | - Yasuhisa Adachi
- Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8572, Japan
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20
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Synthesis and characterization of magnetic poly(acrylic acid) hydrogel fabricated with cobalt nanoparticles for adsorption and catalytic applications. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01738-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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21
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Shafiq Z, Ajmal M, Kiran S, Zulfiqar S, Yasmeen G, Iqbal M, Farooqi ZH, Ahmad Z, Sahiner N, Mahmood K, Ahmad HB, Al-Harrasi A. Facile synthesis of hydrogel-nickel nanoparticle composites and their applications in adsorption and catalysis. PURE APPL CHEM 2019. [DOI: 10.1515/pac-2018-1201] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Homopolymer bulk hydrogel of methacrylic acid was synthesized through a new single-step facile rout and used as a template for the fabrication of nickel (Ni) nanoparticles and as adsorbent to remove methylene blue (MB) and Rhodamine-6G (Rh-6G) from water. The Ni nanoparticles containing composite hydrogel was applied as catalyst for the degradation of a nitro compound. The carboxylic groups acted as highly efficient adsorption sites and their high degree was responsible for the removal of huge amounts of MB and Rh-6G from water. The maximum adsorption capacity of poly (methacrylic acid) hydrogel was 685 mg g−1 for MB and 1571 mg g−1 for Rh-6G. The adsorption data of MB was best fitted with Langmuir adsorption isotherm while that of Rh-6G with Temkin adsorption isotherm. Catalytic property of prepared hydrogel integrated with Ni nanoparticles was evaluated by using it as a catalyst for the degradation of 4-nitrophenol (4-NP). The apparent rate constant (k
app) observed in this study for the reduction of 4-NP was as high as 0.038 min−1. It was found that this catalyst system can be used repetitively with a slight decrease in catalytic activity.
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Affiliation(s)
- Zahid Shafiq
- Institute of Chemical Sciences , Bahauddin Zakariya University , Multan 60800 , Pakistan
| | - Muhammad Ajmal
- Department of Chemistry , University of Education , Attock Campus , Attock 43600 , Pakistan , Tel.: +92 3085513305
| | - Sonia Kiran
- Institute of Chemical Sciences , Bahauddin Zakariya University , Multan 60800 , Pakistan
| | - Sonia Zulfiqar
- Institute of Chemical Sciences , Bahauddin Zakariya University , Multan 60800 , Pakistan
| | - Ghazala Yasmeen
- Institute of Chemical Sciences , Bahauddin Zakariya University , Multan 60800 , Pakistan
| | - Muzaffar Iqbal
- National Centre for Nanoscience and Technology , University of Chinese Academy of Sciences , Beijing 100190 , China
| | - Zahoor H. Farooqi
- Institute of Chemistry , University of the Punjab , New Campus, Lahore 54590 , Pakistan
| | - Zaheer Ahmad
- Department of Chemistry , University of Wah , Quaid Avenue , Wah Cantt. 47040 , Pakistan
| | - Nurettin Sahiner
- Canakkale Onsekiz Mart University , Faculty of Science and Arts, Chemistry Department, Terzioglu Campus , 17100 Canakkale , Turkey
| | - Khalid Mahmood
- Institute of Chemical Sciences , Bahauddin Zakariya University , Multan 60800 , Pakistan
| | - Hafiz Badaruddin Ahmad
- Institute of Chemical Sciences , Bahauddin Zakariya University , Multan 60800 , Pakistan
| | - Ahmed Al-Harrasi
- UoN Chair of Oman’s Medicinal Plants and Marine Natural Products , University of Nizwa , P.O. Box 33, Birkat Al Mauz , Nizwa 616 , Sultanate of Oman
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22
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Naseem K, Begum R, Wu W, Usman M, Irfan A, Al-Sehemi AG, Farooqi ZH. Adsorptive removal of heavy metal ions using polystyrene-poly(N-isopropylmethacrylamide-acrylic acid) core/shell gel particles: Adsorption isotherms and kinetic study. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.12.054] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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23
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Kudaibergenov SE. Physicochemical, Complexation and Catalytic Properties of Polyampholyte Cryogels. Gels 2019; 5:gels5010008. [PMID: 30795568 PMCID: PMC6473870 DOI: 10.3390/gels5010008] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/11/2019] [Accepted: 02/18/2019] [Indexed: 12/24/2022] Open
Abstract
Polyampholyte cryogels are a less considered subject in comparison with cryogels based on nonionic, anionic and cationic precursors. This review is devoted to physicochemical behavior, complexation ability and catalytic properties of cryogels based on amphoteric macromolecules. Polyampholyte cryogels are able to exhibit the stimuli-responsive behavior and change the structure and morphology in response to temperature, pH of the medium, ionic strength and water–organic solvents. Moreover, they can uptake transition metal ions, anionic and cationic dyes, ionic surfactants, polyelectrolytes, proteins, and enzymes through formation of coordination bonds, hydrogen bonds, and electrostatic forces. The catalytic properties of polyampholyte cryogels themselves and with immobilized metal nanoparticles suspended are outlined following hydrolysis, transesterification, hydrogenation and oxidation reactions of various substrates. Application of polyampholyte cryogels as a protein-imprinted matrix for separation and purification of biomacromolecules and for sustained release of proteins is demonstrated. Comparative analysis of the behavior of polyampholyte cryogels with nonionic, anionic and cationic precursors is given together with concluding remarks.
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Affiliation(s)
- Sarkyt E Kudaibergenov
- Institute of Polymer Materials and Technology, Microregion "Atyrau 1", house 3/1, Almaty 050019, Kazakhstan.
- Laboratory of Engineering Profile, K.I. Satpayev Kazakh National Research Technical University, Satpayev Str. 22, Almaty 050013, Kazakhstan.
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24
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Naeem H, Ajmal M, Qureshi RB, Muntha ST, Farooq M, Siddiq M. Facile synthesis of graphene oxide-silver nanocomposite for decontamination of water from multiple pollutants by adsorption, catalysis and antibacterial activity. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 230:199-211. [PMID: 30286349 DOI: 10.1016/j.jenvman.2018.09.061] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 09/16/2018] [Accepted: 09/19/2018] [Indexed: 05/14/2023]
Abstract
Here in, we presented a facile one-step method for the synthesis of Graphene oxide-silver (GO-Ag) nanocomposite and its applications as a sorbent for the elimination of some toxic pollutants from aqueous medium, as an efficient catalyst in the individual as well as simultaneous reduction reactions of multiple compounds, and as an antibacterial agent for the destruction of some harmful microorganisms existent in wastewater. GO was prepared using a modified Hummers method and Ag nanoparticles were integrated on GO sheets by chemical reduction of Ag+ ions on the surfaces of GO sheets. The composition and morphology of the nanocomposite was extensively characterized with elemental dispersive X-ray analysis (EDX), Fourier transform infra-red (FT-IR) spectroscopy, transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and thermal gravimetric analysis (TGA). The GO-Ag nanocomposite demonstrated remarkable adsorption capacities and recyclability for malachite green (MG) and ethyl violet (EV) dyes. Various experimental parameters affecting adsorptive behavior of nanocomposite like temperature, pH, time of contact between dye and adsorbent, and adsorbent dose were evaluated thoroughly. Experimental data was simulated with different adsorption isotherms and kinetic models to evaluate adsorption behavior of both dyes and results confirmed the adsorption of both the dyes to be followed by pseudo 2nd order kinetic model and Langmuir adsorption model. Moreover, adsorbent was regenerated in suitable media for both dyes without any loss in removal efficiency. The catalytic performance for the 2-nitroaniline (2-NA) reduction was investigated in detail. Most importantly, the prepared nanocomposite was found to have potential to adsorb multiple pollutants all together as well as to catalyze the simultaneous reduction of a mixture of dyes (MG, MO, and EV) and 2-NA. An additional advantage of the GO-Ag nanocomposite was its antibacterial activity acquired to the presence of Ag nanoparticles. Two bacterial strains (Gram-negative bacterium, E. coli and the Gram-positive bacterium, S. aureus) were used to test antibacterial activity of composite and the results confirmed the remarkable performance of the nanocomposite in destroying harmful pathogens.
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Affiliation(s)
- Hina Naeem
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Muhammad Ajmal
- Department of Chemistry, University of Wah, Quaid Avenue, Wah Cantt, 47040, Pakistan
| | | | - Sedra Tul Muntha
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Muhammad Farooq
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Muhammad Siddiq
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan.
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25
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Naseem K, Farooqi ZH, Begum R, Ghufran M, Rehman MZU, Najeeb J, Irfan A, Al-Sehemi AG. Poly(N-isopropylmethacrylamide-acrylic acid) microgels as adsorbent for removal of toxic dyes from aqueous medium. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.07.039] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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26
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Kudaibergenov S, Dauletbekova M, Toleutay G, Kabdrakhmanova S, Seilkhanov T, Abdullin K. Hydrogenation of p-Nitrobenzoic Acid by Gold and Palladium Nanoparticles Immobilized Within Macroporous Amphoteric Cryogels in Aqueous Solution. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-0930-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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27
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Naseem K, Farooqi ZH, Begum R, Rehman MZU, Shahbaz A, Farooq U, Ali M, Rahman HMAU, Irfan A, Al-Sehemi AG. Removal of Cadmium (II) from Aqueous Medium Using Vigna radiata Leave Biomass: Equilibrium Isotherms, Kinetics and Thermodynamics. Z PHYS CHEM 2018. [DOI: 10.1515/zpch-2018-1223] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In the present study, a novel biosorbent Vigna radiata leaves biomass (L. biomass) was utilized for cadmium (II) extraction from aqueous medium. Cadmium (II) free and cadmium (II) loaded L. biomass was analyzed by Fourier transform infrared (FTIR) spectroscopy. Adsorption of cadmium (II) from aqueous medium was studied under various conditions such as adsorbent dose, agitation time, pH and temperature of the medium to optimize the process variables. Different models including Langmuir, Freundlich, Temkin and Dubinin–Radushkevich (DR) were used to elaborate the insight of adsorption process. Best interpretation of biosorption process was given by Langmuir model. Value of maximum adsorption capacity (qm) calculated from Langmuir isotherm model was found to be 13.44 mg/g. Results indicated the establishment of physical interaction between cadmium (II) ions and functional groups of L. biomass. Kinetic study for adsorption of cadmium (II) ions on L. biomass was done by applying pseudo first order, pseudo second order, elovich and intra-particles diffusion models. Biosorption process best followed the pseudo second order kinetics. Value of standard Gibbs energy (ΔG°) and standard enthalpy change (ΔH°) showed the feasibility, spontaneity and endothermic nature of adsorption process. Percentage removal efficiency of L. biomass for cadmium (II) was successfully maintained for four cycles. Biomass has a potential to be used as an efficient adsorbent for the removal of cadmium (II) from different polluted water samples.
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Affiliation(s)
- Khalida Naseem
- Institute of Chemistry, University of the Punjab, New Campus , Lahore 54590 , Pakistan
| | - Zahoor H. Farooqi
- Institute of Chemistry, University of the Punjab, New Campus , Lahore 54590 , Pakistan , Tel.: +92-42-9230463 (off.) Ext. 817, Fax: 92-42-9231269, e-mail:
| | - Robina Begum
- Center for Undergraduate Studies, University of the Punjab , New Campus, Lahore 54590 , Pakistan
| | - Muhammad Zia Ur Rehman
- Department of Chemical Engineering , University of Engineering and Technology , Lahore 54890 , Pakistan
| | - Aiman Shahbaz
- Department of Chemistry , Kinnaird College for Women , Lahore 54000 , Pakistan
| | - Umar Farooq
- Institute of Chemistry, University of the Punjab, New Campus , Lahore 54590 , Pakistan
| | - Muhammad Ali
- Institute of Agriculture Sciences, University of the Punjab , Lahore 54590 , Pakistan
| | | | - Ahmad Irfan
- Research Center for Advanced Materials Science (RCAMS), King Khalid University , P.O. Box 9004 , Abha 61413 , Saudi Arabia ; Department of Chemistry , Faculty of Science, King Khalid University , P.O. Box 9004 , Abha 61413 , Saudi Arabia
| | - Abdullah G. Al-Sehemi
- Research Center for Advanced Materials Science (RCAMS), King Khalid University , P.O. Box 9004 , Abha 61413 , Saudi Arabia ; Department of Chemistry , Faculty of Science, King Khalid University , P.O. Box 9004 , Abha 61413 , Saudi Arabia
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28
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Naseem K, Huma R, Shahbaz A, Jamal J, Ur Rehman MZ, Sharif A, Ahmed E, Begum R, Irfan A, Al-Sehemi AG, Farooqi ZH. Extraction of Heavy Metals from Aqueous Medium by Husk Biomass: Adsorption Isotherm, Kinetic and Thermodynamic study. ACTA ACUST UNITED AC 2018. [DOI: 10.1515/zpch-2018-1182] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
This study describes the adsorption of Cu (II), Co (II) and Ni (II) ions from wastewater on Vigna radiata husk biomass. The ability of adsorbent to capture the metal ions has been found to be in the order of Ni (II)>Co (II) and Cu (II) depending upon the size and nature of metal ions to be adsorbed. It has been observed that percentage removal of Cu (II), Co (II) and Ni (II) ions increases with increase of adsorbent dosage, contact time and pH of the medium but up to a certain extent. Maximum adsorption capacity (qmax) for Cu (II), Co (II) and Ni (II) ions has been found to be 11.05, 15.04 and 19.88 mg/g, respectively, under optimum conditions of adsorbent dosage, contact time and pH of the medium. Langmuir model best fits the adsorption process with R2 value approaches to unity for all metal ions as compared to other models because adsorption sites are seemed to be equivalent and only monolayer adsorption may occur as a result of binding of metal ion with a functional moiety of adsorbent. Pseudo second order kinetic model best interprets the adsorption process of Cu (II), Co (II) and Ni (II) ions. Thermodynamic parameters such as negative value of Gibbs energy (∆G°) gives information about feasibility and spontaneity of the process. Adsorption process was found to be endothermic for Cu (II) ions while exothermic for Co (II) and Ni (II) ions as signified by the value of enthalpy change (∆H°). Husk biomass was recycled three times for removal of Ni (II) from aqueous medium to investigate its recoverability and reusability. Moreover V. radiata husk biomass has a potential to extract Cu (II) and Ni (II) from electroplating wastewater to overcome the industrial waste water pollution.
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Affiliation(s)
- Khalida Naseem
- Institute of Chemistry , University of the Punjab, New Campus , Lahore 54590 , Pakistan
| | - Rahila Huma
- Department of Chemistry , Kinnaird College for Women , Lahore 54000 , Pakistan
| | - Aiman Shahbaz
- Department of Chemistry , Kinnaird College for Women , Lahore 54000 , Pakistan
| | - Jawaria Jamal
- Department of Chemistry , Kinnaird College for Women , Lahore 54000 , Pakistan
| | - Muhammad Zia Ur Rehman
- Department of Chemical Engineering , University of Engineering and Technology , Lahore 54890 , Pakistan
| | - Ahsan Sharif
- Institute of Chemistry , University of the Punjab, New Campus , Lahore 54590 , Pakistan
| | - Ejaz Ahmed
- Institute of Chemistry , University of the Punjab, New Campus , Lahore 54590 , Pakistan
| | - Robina Begum
- Center for Undergraduate Studies , University of the Punjab, New Campus , Lahore 54590 , Pakistan
| | - Ahmad Irfan
- Research Center for Advanced Materials Science (RCAMS) , King Khalid University , Abha 61413 , P.O. Box 9004 , Saudi Arabia
- Department of Chemistry , Faculty of Science , King Khalid University , Abha 61413 , P.O. Box 9004 , Saudi Arabia
| | - Abdullah G. Al-Sehemi
- Research Center for Advanced Materials Science (RCAMS) , King Khalid University , Abha 61413 , P.O. Box 9004 , Saudi Arabia
- Department of Chemistry , Faculty of Science , King Khalid University , Abha 61413 , P.O. Box 9004 , Saudi Arabia
| | - Zahoor H. Farooqi
- Institute of Chemistry , University of the Punjab, New Campus , Lahore 54590 , Pakistan , Phone: +92-42-9230463 (off.) Ext.817, Fax: 92-42-9231269, e-mail:
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Naseem K, Hussain Farooqi Z, Zia Ur Rehman M, Atiq Ur Rehman M, Ghufran M. Microgels as efficient adsorbents for the removal of pollutants from aqueous medium. REV CHEM ENG 2018. [DOI: 10.1515/revce-2017-0042] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Abstract
Due to their responsive behavior, high stability, and reusability, microgels have gained importance as adsorbents for the removal of aqueous pollutants such as heavy metals, nitroarenes, organic matter, and toxic dyes. However, there are few challenges that need to be addressed to make microgels as potential adsorbents for the removal of aqueous pollutants. This review article encircles the recent developments in the field of microgel usage as adsorbents for the extraction of aqueous pollutants. Many factors that influence the adsorption of pollutants such as pH, temperature of the medium, agitation time, pollutant concentration, microgel dose, and feed contents of microgels have been discussed in detail. Different adsorption isotherms as well as the kinetic and thermodynamic aspects of the adsorption process have also been enlightened to interpret the insight of the adsorption process. Microgel recovery from the reaction mixture as well as reusability is discussed from the financial point of view. The biodegradability of microgels induced due to the incorporation of specific biomacromolecules is also discussed.
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Affiliation(s)
- Khalida Naseem
- Institute of Chemistry , University of the Punjab, New Campus , Lahore 54590 , Pakistan
- Department of Chemistry , Kinnaird College for Women , Lahore 54000 , Pakistan
| | | | - Muhammad Zia Ur Rehman
- Department of Chemical Engineering , University of Engineering and Technology , Lahore 54890 , Pakistan
| | | | - Maida Ghufran
- Department of Chemistry , Kinnaird College for Women , Lahore 54000 , Pakistan
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30
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Naeem H, Ajmal M, Muntha S, Ambreen J, Siddiq M. Synthesis and characterization of graphene oxide sheets integrated with gold nanoparticles and their applications to adsorptive removal and catalytic reduction of water contaminants. RSC Adv 2018; 8:3599-3610. [PMID: 35542905 PMCID: PMC9077651 DOI: 10.1039/c7ra12030c] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 12/31/2017] [Indexed: 11/21/2022] Open
Abstract
Here, we report the facile synthesis of graphene oxide-gold (GO-Au) nanocomposites and their use as adsorbents for the removal of toxic industrial dyes from water and as catalysts for the individual and simultaneous reduction of a dye and a nitro compound in aqueous medium. GO sheets were prepared using a modified Hummers method while Au nanoparticles were integrated on GO sheets by reducing Au(iii) ions on the surfaces of GO sheets using sodium citrate as a reducing agent. The prepared composite was characterized with field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), elemental dispersive X-ray analysis (EDX), X-ray diffraction (XRD), Fourier transform infra-red (FT-IR) spectroscopy and thermal gravimetric analysis (TGA). The GO-Au nanocomposite demonstrated efficient adsorption capacities and recyclability for malachite green (MG) and ethyl violet (EV) dyes. The effects of various experimental parameters including temperature, pH, contact time, and adsorbent dose were studied. From the simulation of experimental data with different adsorption isotherms and kinetic models it was found that the adsorption of both the dyes followed the Freundlich adsorption model and a pseudo-second order kinetic model, respectively. Moreover, the adsorbent showed better recyclability for both dyes without any compromise on the removal efficiency. Similarly, the catalytic performance for the reduction of 2-nitroaniline (2-NA) has been investigated in detail by using the prepared nanocomposite as a catalyst. Most importantly, we reported the simultaneous adsorption of cationic and anionic dyes from water using the prepared nanocomposite as well as the simultaneous catalytic reduction of a mixture of EV and 2-NA. So, considering the facile synthesis process and the efficient removal of a variety of dyes and the catalytic performance this work opens up a tremendous opportunity to bring GO based nanocomposites from experimental research to practically applied materials for wastewater treatment.
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Affiliation(s)
- H Naeem
- Department of Chemistry, Quaid-i-Azam University Islamabad 45320 Pakistan +92 5190642147
| | - M Ajmal
- Department of Chemistry, University of Wah Quaid Avenue Wah Cantt 47040 Pakistan
| | - S Muntha
- Department of Chemistry, Quaid-i-Azam University Islamabad 45320 Pakistan +92 5190642147
| | - J Ambreen
- Department of Physics, COMSATS Institute of Technology Park Road, Chak Shahzad 45550 Islamabad Pakistan
| | - M Siddiq
- Department of Chemistry, Quaid-i-Azam University Islamabad 45320 Pakistan +92 5190642147
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31
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Fernandes T, Soares SF, Trindade T, Daniel-da-Silva AL. Magnetic Hybrid Nanosorbents for the Uptake of Paraquat from Water. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 7:E68. [PMID: 28336902 PMCID: PMC5388170 DOI: 10.3390/nano7030068] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 03/12/2017] [Accepted: 03/13/2017] [Indexed: 01/11/2023]
Abstract
Although paraquat has been banned in European countries, this herbicide is still used all over the world, thanks to its low-cost, high-efficiency, and fast action. Because paraquat is highly toxic to humans and animals, there is interest in mitigating the consequences of its use, namely by implementing removal procedures capable of curbing its environmental and health risks. This research describes new magnetic nanosorbents composed of magnetite cores functionalized with bio-hybrid siliceous shells, that can be used to uptake paraquat from water using magnetically-assisted procedures. The biopolymers κ-carrageenan and starch were introduced into the siliceous shells, resulting in two hybrid materials, Fe₃O₄@SiO₂/SiCRG and Fe₃O₄@SiO₂/SiStarch, respectively, that exhibit a distinct surface chemistry. The Fe₃O₄@SiO₂/SiCRG biosorbents displayed a superior paraquat removal performance, with a good fitting to the Langmuir and Toth isotherm models. The maximum adsorption capacity of paraquat for Fe₃O₄@SiO₂/SiCRG biosorbents was 257 mg·g-1, which places this sorbent among the best systems for the removal of this herbicide from water. The interesting performance of the κ-carrageenan hybrid, along with its magnetic properties and good regeneration capacity, presents a very efficient way for the remediation of water contaminated with paraquat.
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Affiliation(s)
- Tiago Fernandes
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Sofia F Soares
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Tito Trindade
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Ana L Daniel-da-Silva
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
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Facile template-free fabrication of iron manganese bimetal oxides nanospheres with excellent capability for heavy metals removal. J Colloid Interface Sci 2017; 486:211-218. [DOI: 10.1016/j.jcis.2016.09.026] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Revised: 08/25/2016] [Accepted: 09/13/2016] [Indexed: 11/24/2022]
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33
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Bae JY, Lee HJ, Choi WS. Cube sugar-like sponge/polymer brush composites for portable and user-friendly heavy metal ion adsorbents. JOURNAL OF HAZARDOUS MATERIALS 2016; 320:133-142. [PMID: 27526279 DOI: 10.1016/j.jhazmat.2016.07.067] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 07/27/2016] [Accepted: 07/28/2016] [Indexed: 06/06/2023]
Abstract
Portable, non-toxic, and user-friendly sponge composites decorated with polyelectrolyte (PE) brushes were developed for the fast and efficient removal of heavy metal ions from waste water or drinking water. The polyacrylamide (PAM) and polyacrylic acid (PAA) brushes were grafted onto the sponge via "grafting-from" polymerization. For the polyethyleneimine (PEI) brush, "grafting-to" polymerization was used. A polydopamine (Pdop) layer was first coated on the sponge. Then, PEI was grafted onto the Pdop-coated sponge via a Michael addition reaction. The PEI-grafted sponge exhibited the best adsorption capacity and the fastest reaction rate of all the brushes due to the numerous adsorption sites of the PEI. The adsorption performance of two different PEI-grafted sponges depended on the molecular weight (MW) of the PEI. Simply by being dipped into a glass of water, non-toxic PEI-grafted sponge instantly removed the low concentration heavy metal ions, demonstrating a practical application for individual users.
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Affiliation(s)
- Ji Young Bae
- Department of Chemical and Biological Engineering, Hanbat National University, San 16-1, Dukmyoung dong, Yuseong-gu, Daejeon, 305-719, Republic of Korea
| | - Ha-Jin Lee
- Western Seoul Center, Korea Basic Science Institute, 150 Bugahyun-ro, Seoudaemun-gu, Seoul, 120-140, Republic of Korea.
| | - Won San Choi
- Department of Chemical and Biological Engineering, Hanbat National University, San 16-1, Dukmyoung dong, Yuseong-gu, Daejeon, 305-719, Republic of Korea.
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34
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Khan M, Lo IMC. A holistic review of hydrogel applications in the adsorptive removal of aqueous pollutants: Recent progress, challenges, and perspectives. WATER RESEARCH 2016; 106:259-271. [PMID: 27728820 DOI: 10.1016/j.watres.2016.10.008] [Citation(s) in RCA: 137] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 10/01/2016] [Accepted: 10/03/2016] [Indexed: 05/12/2023]
Abstract
Due to the unique physical and chemical characteristics of hydrogels, such as hydrophilicity, swellability, and modifiability, there is increasing research interest in the development and application of novel hydrogels in water and wastewater treatment. Hydrogels have exhibited superior performance in the adsorptive removal of a wide range of aqueous pollutants including heavy metals, nutrients, and toxic dyes. However, there remain certain challenges which need to be addressed in order to evolve hydrogel based treatment systems from the lab-scale to practical applications. This review provides a coverage of the latest developments in the application of hydrogels for the adsorptive removal of aqueous pollutants. A holistic overview of different steps involved in the hydrogel based treatment systems is provided, and the influencing factors and mechanisms of pollutants removal are reviewed. Major challenges pertaining to adsorption kinetics, operational pH range, interference, and hydrogel recovery are examined. Important considerations such as stability and reusability of hydrogels and resource recovery are also discussed, for economic and sustainability concerns.
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Affiliation(s)
- Musharib Khan
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Irene M C Lo
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China.
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35
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Sarkar K, Ansari Z, Sen K. Detoxification of Hg(II) from aqueous and enzyme media: Pristine vs. tailored calcium alginate hydrogels. Int J Biol Macromol 2016; 91:165-73. [DOI: 10.1016/j.ijbiomac.2016.05.049] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 05/05/2016] [Accepted: 05/12/2016] [Indexed: 12/23/2022]
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36
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Kudaibergenov SE, Tatykhanova GS, Klivenko AN. Complexation of macroporous amphoteric cryogels based onN,N-dimethylaminoethyl methacrylate and methacrylic acid with dyes, surfactant, and protein. J Appl Polym Sci 2016. [DOI: 10.1002/app.43784] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Sarkyt E. Kudaibergenov
- Laboratory of Engineering Profile; Kazakh National Technical Research University n/a K.I. Satpayev; Satpayev Str. 22 Almaty 050013 Republic of Kazakhstan
- Institute of Polymer Materials and Technology; Satpayev Str. 22 Almaty 050013 Republic of Kazakhstan
| | - Gulnur S. Tatykhanova
- Laboratory of Engineering Profile; Kazakh National Technical Research University n/a K.I. Satpayev; Satpayev Str. 22 Almaty 050013 Republic of Kazakhstan
- Institute of Polymer Materials and Technology; Satpayev Str. 22 Almaty 050013 Republic of Kazakhstan
| | - Alexey N. Klivenko
- al-Farabi Kazakh National University; al-Farabi Av. 71 Almaty 050040 Republic of Kazakhstan
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37
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Ajmal M, Demirci S, Uzun Y, Siddiq M, Aktas N, Sahiner N. Introduction of double amidoxime group by double post surface modification on poly(vinylbenzyl chloride) beads for higher amounts of organic dyes, As (V) and Cr (VI) removal. J Colloid Interface Sci 2016; 470:39-46. [DOI: 10.1016/j.jcis.2016.02.040] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 02/12/2016] [Accepted: 02/17/2016] [Indexed: 10/22/2022]
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38
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Poly(vinyl phosphonic acid) nanogels with tailored properties and their use for biomedical and environmental applications. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.01.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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39
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Tan S, Lu Z, Zhao J, Zhang J, Wu M, Wu Q, Yang J. Synthesis and multi-responsiveness of poly(N-vinylcaprolactam-co-acrylic acid) core–shell microgels via miniemulsion polymerization. Polym Chem 2016. [DOI: 10.1039/c6py00544f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report herein a facile and large fabrication of multi-responsive poly(N-vinylcaprolactam-co-acrylic acid) microgels with a core–shell structure via seed miniemulsion polymerization. The multi-responsive microgels can reversibly swell and shrink in response to pH and temperature variation.
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Affiliation(s)
- Shen Tan
- School of Chemistry and Chemical Engineering
- Anhui University and Anhui Province Key Laboratory of Environment-friendly Polymer Materials
- Hefei 230601
- P. R. China
| | - Zhengquan Lu
- School of Chemistry and Chemical Engineering
- Anhui University and Anhui Province Key Laboratory of Environment-friendly Polymer Materials
- Hefei 230601
- P. R. China
| | - Jing Zhao
- School of Chemistry and Chemical Engineering
- Anhui University and Anhui Province Key Laboratory of Environment-friendly Polymer Materials
- Hefei 230601
- P. R. China
| | - Jianan Zhang
- School of Chemistry and Chemical Engineering
- Anhui University and Anhui Province Key Laboratory of Environment-friendly Polymer Materials
- Hefei 230601
- P. R. China
| | - Mingyuan Wu
- School of Chemistry and Chemical Engineering
- Anhui University and Anhui Province Key Laboratory of Environment-friendly Polymer Materials
- Hefei 230601
- P. R. China
| | - Qingyun Wu
- School of Chemistry and Chemical Engineering
- Anhui University and Anhui Province Key Laboratory of Environment-friendly Polymer Materials
- Hefei 230601
- P. R. China
| | - Jianjun Yang
- School of Chemistry and Chemical Engineering
- Anhui University and Anhui Province Key Laboratory of Environment-friendly Polymer Materials
- Hefei 230601
- P. R. China
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40
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Ajmal M, Demirci S, Siddiq M, Aktas N, Sahiner N. Simultaneous catalytic degradation/reduction of multiple organic compounds by modifiable p(methacrylic acid-co-acrylonitrile)–M (M: Cu, Co) microgel catalyst composites. NEW J CHEM 2016. [DOI: 10.1039/c5nj02298c] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The reactants easily diffuse into a microgel network, adsorb at the surface of catalyst nanoparticles and reduce in the presence of reducing agents.
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Affiliation(s)
- Muhammad Ajmal
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad 45320
- Pakistan
| | - Sahin Demirci
- Canakkale Onsekiz Mart University
- Faculty of Science & Arts
- Chemistry Department
- 17100 Canakkale
- Turkey
| | - Mohammad Siddiq
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad 45320
- Pakistan
| | - Nahit Aktas
- Chemical Engineering Departments
- Yuzuncu Yil University
- Van
- Turkey
| | - Nurettin Sahiner
- Canakkale Onsekiz Mart University
- Faculty of Science & Arts
- Chemistry Department
- 17100 Canakkale
- Turkey
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41
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Vafaeezadeh M, Hashemi MM, Ghavidel N. Polarity adjustment of a nanosilica-functionalized polyamine modified by ionic liquid for removal of Cu2+ from aqueous solutions. RSC Adv 2016. [DOI: 10.1039/c5ra20179a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Confinement of the amine-based ionic liquid on the surface of silica–polyamine has been introduced as a new material with improved metal removal capacity.
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Affiliation(s)
| | | | - Nasim Ghavidel
- Department of Chemistry
- Sharif University of Technology
- Tehran
- Iran
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42
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Ajmal M, Demirci S, Siddiq M, Aktas N, Sahiner N. Amidoximated poly(acrylonitrile) particles for environmental applications: Removal of heavy metal ions, dyes, and herbicides from water with different sources. J Appl Polym Sci 2015. [DOI: 10.1002/app.43032] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Muhammad Ajmal
- Department of Chemistry; Quaid-i-Azam University; Islamabad 45320 Pakistan
- Faculty of Science and Arts, Chemistry Department, Terzioglu Campus; Canakkale Onsekiz Mart University; Canakkale 17100 Turkey
- Terzioglu Campus; Canakkale Onsekiz Mart University, Nanoscience and Technological Research and Application Center (NANORAC); Canakkale 17100 Turkey
| | - Sahin Demirci
- Faculty of Science and Arts, Chemistry Department, Terzioglu Campus; Canakkale Onsekiz Mart University; Canakkale 17100 Turkey
| | - Mohammad Siddiq
- Department of Chemistry; Quaid-i-Azam University; Islamabad 45320 Pakistan
| | - Nahit Aktas
- Chemical Engineering Department; Yuzuncu Yil University; Campus Van 65080 Turkey
| | - Nurettin Sahiner
- Faculty of Science and Arts, Chemistry Department, Terzioglu Campus; Canakkale Onsekiz Mart University; Canakkale 17100 Turkey
- Terzioglu Campus; Canakkale Onsekiz Mart University, Nanoscience and Technological Research and Application Center (NANORAC); Canakkale 17100 Turkey
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43
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Riahi F, Bagherzadeh M, Hadizadeh Z. Modification of Fe3O4 superparamagnetic nanoparticles with zirconium oxide; preparation, characterization and its application toward fluoride removal. RSC Adv 2015. [DOI: 10.1039/c5ra14833b] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Fe3O4 superparamagnetic nanoparticles (NPs) modified with zirconia (ZrO2) were synthesized (Fe3O4@ZrO2) using a chemical co-precipitation method and used as a nanoadsorbent in the removal of excessive fluoride from aqueous solutions.
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Affiliation(s)
- F. Riahi
- Material Research School
- NSTRI
- Isfahan 81465-1589
- I.R. Iran
| | - M. Bagherzadeh
- Material Research School
- NSTRI
- Isfahan 81465-1589
- I.R. Iran
| | - Z. Hadizadeh
- Islamic Azad University
- Shahreza Branch
- Shahreza
- I.R. Iran
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