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Yan L, Peng Y. Enhanced treatment of acute organophosphorus pesticide poisoning using activated charcoal-embedded sodium alginate-polyvinyl alcohol hydrogel. Biomed Mater Eng 2024:BME240007. [PMID: 38607746 DOI: 10.3233/bme-240007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2024]
Abstract
BACKGROUND The adsorption of activated charcoal is currently a major clinical treatment for acute organophosphorus pesticide poisoning (AOPP). However, the adsorption duration and efficiency of this method is unstable. OBJECTIVE In this study, a hydrogel embedding activated charcoal was prepared and its alleviating effects on AOPP were investigated. METHODS A composite hydrogel using sodium alginate and polyvinyl alcohol (SA-PVA) hydrogel was prepared in this study. The structural properties of the SA-PVA hydrogel were characterized via multiple analysis including FTIR, TGA, XRD, SEM, tensile strength and expansion rate. Based on these, activated charcoal (AC) was embedded within the SA-PVA hydrogel (SA-PVA-AC) and it was used for the treatment of AOPP. RESULTS Structural characterization indicated SA-PVA hydrogel possesses excellent mechanical properties and biocompatibility. The in vivo study demonstrated that SA-PVA-AC significantly alleviated the inflammation and oxidative damage in the liver, as evidenced by reduced levels of IL-6, TNF-α, and, IL-1β, SOD, and MDA. Furthermore, SA-PVA-AC treatment effectively re-regulated the activities of serum AST and ALT, exhibiting an improved effect on liver function. CONCLUSION The findings suggest that activated charcoal embedded within SA-PVA hydrogel has significant potential as a therapeutic agent in treating AOPP, and offering a novel approach to managing pesticide-induced toxicity.
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Affiliation(s)
- Li Yan
- Department of Occupational Disease and Pooning Medicine, First Affiliated Hospital of Chongqing Medical College, Chongqing, China
| | - Ying Peng
- Department of Occupational Disease and Pooning Medicine, First Affiliated Hospital of Chongqing Medical College, Chongqing, China
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2
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Mphahlele MRR, Mosai AK, Tutu H, Kotzé IA. Advancements in sustainable platinum and palladium recovery: unveiling superior adsorption efficiency and selectivity with a novel silica-anchored acylthiourea adsorbent. RSC Adv 2024; 14:7507-7516. [PMID: 38440278 PMCID: PMC10910266 DOI: 10.1039/d3ra08169a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 02/21/2024] [Indexed: 03/06/2024] Open
Abstract
This study addresses the pressing issue of depleting natural resources of platinum group metals (PGMs), driven by their widespread use in modern applications and increasing demand for renewable energy technologies. With conventional sources dwindling, the search for economically viable recovery methods from alternative sources has become crucial. Our focus was on innovating efficient recovery strategies, leading to the development of two novel silica-anchored adsorbents: DTMSP-BT-SG, a highly efficient acylthiourea adsorbent, and BTMSPA-SG, a silica-anchored amine adsorbent. We conducted comprehensive experiments under PGM mining wastewater conditions, varying parameters such as adsorbent mass, pH, concentration, contact time, competing ions, and volume. DTMSP-BT-SG demonstrated exceptional performance, achieving maximum adsorption efficiencies of >98% for Pt and >99% for Pd at pH 2, 0.5 g L-1 dosage, and 5 mg L-1 concentration. In contrast, under the same conditions, BTMSPA-SG recovered <56% and <89% of Pt and Pd, respectively. The experimental data for both adsorbents were analysed using Langmuir and Freundlich isotherm models for concentration and pseudo-first and second-order models for contact time. The Langmuir model best described the adsorption data, indicating homogenous monolayer adsorption of Pt and Pd. The kinetic models suggested a pseudo-second-order process, implying chemisorption. Furthermore, in the presence of competing ions and other PGMs, DTMSP-BT-SG exhibited significantly higher recovery rates for Pt and Pd compared to BTMSPA-SG. Overall, DTMSP-BT-SG emerged as a more selective and efficient adsorbent across varied parameters. Its exceptional adsorption efficiency, coupled with cost-effectiveness, positions it as a promising and competitive recovery agent for extracting PGMs from mining wastewaters.
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Affiliation(s)
- Malehlogonolo R R Mphahlele
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand Private Bag X3, WITS Johannesburg 2050 South Africa
| | - Alseno K Mosai
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of Pretoria Lynnwood Road Pretoria 0002 South Africa
| | - Hlanganani Tutu
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand Private Bag X3, WITS Johannesburg 2050 South Africa
| | - Izak A Kotzé
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand Private Bag X3, WITS Johannesburg 2050 South Africa
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Getya D, Gitsov I. Synthesis and Applications of Hybrid Polymer Networks Based on Renewable Natural Macromolecules. Molecules 2023; 28:6030. [PMID: 37630282 PMCID: PMC10458063 DOI: 10.3390/molecules28166030] [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: 07/13/2023] [Revised: 08/02/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
Macromolecules obtained from renewable natural sources are gaining increasing attention as components for a vast variety of sustainable polymer-based materials. Natural raw materials can facilitate continuous-flow production due to their year-round availability and short replenishment period. They also open new opportunities for chemists and biologists to design and create "bioreplacement" and "bioadvantaged" polymers, where complex structures produced by nature are being modified, upgraded, and utilized to create novel materials. Bio-based macromonomers are expected not only to compete with but to replace some petroleum-based analogs, as well. The development of novel sustainable materials is an ongoing and very dynamic process. There are multiple strategies for transforming natural macromolecules into sophisticated value-added products. Some methods include chemical modification of macromolecules, while others include blending several components into one new system. One of the most promising approaches for incorporating renewable macromolecules into new products is the synthesis of hybrid networks based on one or more natural components. Each one has unique characteristics, so its incorporation into a network brings new sustainable materials with properties that can be tuned according to their end-use. This article reviews the current state-of-the-art and future potential of renewable natural macromolecules as sustainable building blocks for the synthesis and use of hybrid polymer networks. The most recent advancements and applications that involve polymers, such as cellulose, chitin, alginic acid, gellan gum, lignin, and their derivatives, are discussed.
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Affiliation(s)
- Dariya Getya
- Department of Chemistry, State University of New York—ESF, Syracuse, NY 13210, USA;
- The Michael M. Szwarc Polymer Research Institute, Syracuse, NY 13210, USA
| | - Ivan Gitsov
- Department of Chemistry, State University of New York—ESF, Syracuse, NY 13210, USA;
- The Michael M. Szwarc Polymer Research Institute, Syracuse, NY 13210, USA
- The BioInspired Institute, Syracuse University, Syracuse, NY 13244, USA
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Yin X, Ke T, Zhu H, Xu P, Wang H. Efficient Removal of Heavy Metals from Aqueous Solution Using Licorice Residue-Based Hydrogel Adsorbent. Gels 2023; 9:559. [PMID: 37504438 PMCID: PMC10379308 DOI: 10.3390/gels9070559] [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: 06/01/2023] [Revised: 07/05/2023] [Accepted: 07/06/2023] [Indexed: 07/29/2023] Open
Abstract
The removal of heavy metals through adsorption represents a highly promising method. This study focuses on the utilization of an abundant cellulose-rich solid waste, licorice residue (LR), as a natural material for hydrogel synthesis. To this end, LR-EPI hydrogels, namely, LR-EPI-5, LR-EPI-6 and LR-EPI-8, were developed by crosslinking LR with epichlorohydrin (EPI), specifically targeting the removal of Pb, Cu, and Cr from aqueous solutions. Thorough characterizations employing Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy confirmed the successful crosslinking of LR-EPIs by EPI, resulting in the formation of porous and loosely structured hydrogels. Batch studies demonstrated the high efficacy of LR-EPI hydrogels in removing the three heavy metal ions from aqueous solutions. Notably, LR-EPI-8 exhibited the highest adsorption capacity, with maximum capacities of 591.8 mg/g, 458.3 mg/g, and 121.4 mg/g for Pb2+, Cr3+, and Cu2+, respectively. The adsorption processes for Pb2+ and Cu2+ were well described by pseudo-second-order kinetics and the Langmuir model. The adsorption mechanism of LR-EPI-8 onto heavy metal ions was found to involve a combination of ion-exchange and electrostatic interactions, as inferred from the results obtained through X-ray photoelectron spectroscopy and FTIR. This research establishes LR-EPI-8 as a promising adsorbent for the effective removal of heavy metal ions from aqueous solutions, offering an eco-friendly approach for heavy metal removal and providing an environmentally sustainable method for the reutilization of Chinese herb residues. It contributes to the goal of "from waste, treats waste" while also addressing the broader need for heavy metal remediation.
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Affiliation(s)
- Xiaochun Yin
- Department of Civil Engineering, New Mexico State University, Las Cruces, NM 88003, USA
- School of Public Health, Gansu University of Chinese Medicine, Lanzhou 730000, China
| | - Ting Ke
- School of Public Health, Gansu University of Chinese Medicine, Lanzhou 730000, China
| | - Hai Zhu
- School of Public Health, Gansu University of Chinese Medicine, Lanzhou 730000, China
| | - Pei Xu
- Department of Civil Engineering, New Mexico State University, Las Cruces, NM 88003, USA
| | - Huiyao Wang
- Department of Civil Engineering, New Mexico State University, Las Cruces, NM 88003, USA
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Zhang W, Xu Y, Mu X, Li S, Liu X, Lei Z. Research Progress of Polysaccharide-Based Natural Polymer Hydrogels in Water Purification. Gels 2023; 9:gels9030249. [PMID: 36975698 PMCID: PMC10048097 DOI: 10.3390/gels9030249] [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: 02/28/2023] [Revised: 03/13/2023] [Accepted: 03/17/2023] [Indexed: 03/29/2023] Open
Abstract
The pollution and scarcity of freshwater resources are global problems that have a significant influence on human life. It is very important to remove harmful substances in the water to realize the recycling of water resources. Hydrogels have recently attracted attention due to their special three-dimensional network structure, large surface area, and pores, which show great potential for the removal of pollutants in water. In their preparation, natural polymers are one of the preferred materials because of their wide availability, low cost, and easy thermal degradation. However, when it is directly used for adsorption, its performance is unsatisfactory, so it usually needs to be modified in the preparation process. This paper reviews the modification and adsorption properties of polysaccharide-based natural polymer hydrogels, such as cellulose, chitosan, starch, and sodium alginate, and discusses the effects of their types and structures on performance and recent technological advances.
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Affiliation(s)
- Wenxu Zhang
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education, Northwest Normal University, Lanzhou 730070, China
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
- Key Laboratory of Eco-Environmental Polymer Materials of Gansu Province, Northwest Normal University, Lanzhou 730070, China
| | - Yan Xu
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education, Northwest Normal University, Lanzhou 730070, China
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
- Key Laboratory of Eco-Environmental Polymer Materials of Gansu Province, Northwest Normal University, Lanzhou 730070, China
| | - Xuyang Mu
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education, Northwest Normal University, Lanzhou 730070, China
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
- Key Laboratory of Eco-Environmental Polymer Materials of Gansu Province, Northwest Normal University, Lanzhou 730070, China
| | - Sijie Li
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education, Northwest Normal University, Lanzhou 730070, China
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
- Key Laboratory of Eco-Environmental Polymer Materials of Gansu Province, Northwest Normal University, Lanzhou 730070, China
| | - Xiaoming Liu
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education, Northwest Normal University, Lanzhou 730070, China
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
- Key Laboratory of Eco-Environmental Polymer Materials of Gansu Province, Northwest Normal University, Lanzhou 730070, China
| | - Ziqiang Lei
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education, Northwest Normal University, Lanzhou 730070, China
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
- Key Laboratory of Eco-Environmental Polymer Materials of Gansu Province, Northwest Normal University, Lanzhou 730070, China
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Ge H, Ding K, Guo F, Wu X, Zhai N, Wang W. Green and Superior Adsorbents Derived from Natural Plant Gums for Removal of Contaminants: A Review. MATERIALS (BASEL, SWITZERLAND) 2022; 16:179. [PMID: 36614516 PMCID: PMC9821582 DOI: 10.3390/ma16010179] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/16/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
The ubiquitous presence of contaminants in water poses a major threat to the safety of ecosystems and human health, and so more materials or technologies are urgently needed to eliminate pollutants. Polymer materials have shown significant advantages over most other adsorption materials in the decontamination of wastewater by virtue of their relatively high adsorption capacity and fast adsorption rate. In recent years, "green development" has become the focus of global attention, and the environmental friendliness of materials themselves has been concerned. Therefore, natural polymers-derived materials are favored in the purification of wastewater due to their unique advantages of being renewable, low cost and environmentally friendly. Among them, natural plant gums show great potential in the synthesis of environmentally friendly polymer adsorption materials due to their rich sources, diverse structures and properties, as well as their renewable, non-toxic and biocompatible advantages. Natural plant gums can be easily modified by facile derivatization or a graft polymerization reaction to enhance the inherent properties or introduce new functions, thus obtaining new adsorption materials for the efficient purification of wastewater. This paper summarized the research progress on the fabrication of various gums-based adsorbents and their application in the decontamination of different types of pollutants. The general synthesis mechanism of gums-based adsorbents, and the adsorption mechanism of the adsorbent for different types of pollutants were also discussed. This paper was aimed at providing a reference for the design and development of more cost-effective and environmentally friendly water purification materials.
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Affiliation(s)
- Hanwen Ge
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China
| | - Ke Ding
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China
| | - Fang Guo
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China
| | - Xianli Wu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Naihua Zhai
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Wenbo Wang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China
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Ghiorghita CA, Dinu MV, Lazar MM, Dragan ES. Polysaccharide-Based Composite Hydrogels as Sustainable Materials for Removal of Pollutants from Wastewater. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238574. [PMID: 36500664 PMCID: PMC9736407 DOI: 10.3390/molecules27238574] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 11/23/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022]
Abstract
Nowadays, pollution has become the main bottleneck towards sustainable technological development due to its detrimental implications in human and ecosystem health. Removal of pollutants from the surrounding environment is a hot research area worldwide; diverse technologies and materials are being continuously developed. To this end, bio-based composite hydrogels as sorbents have received extensive attention in recent years because of advantages such as high adsorptive capacity, controllable mechanical properties, cost effectiveness, and potential for upscaling in continuous flow installations. In this review, we aim to provide an up-to-date analysis of the literature on recent accomplishments in the design of polysaccharide-based composite hydrogels for removal of heavy metal ions, dyes, and oxyanions from wastewater. The correlation between the constituent polysaccharides (chitosan, cellulose, alginate, starch, pectin, pullulan, xanthan, salecan, etc.), engineered composition (presence of other organic and/or inorganic components), and sorption conditions on the removal performance of addressed pollutants will be carefully scrutinized. Particular attention will be paid to the sustainability aspects in the selected studies, particularly to composite selectivity and reusability, as well as to their use in fixed-bed columns and real wastewater applications.
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Lan S, Xia X, Liu Z, Yang Y, Qian Q, Luo Y, Chen Q, Cao C, Xiao L. 3D printed cylindrical capsules as a Chlorella pyrenoidosa immobilization device for removal of lead ions contamination. Front Chem 2022; 10:987619. [PMID: 36531318 PMCID: PMC9748691 DOI: 10.3389/fchem.2022.987619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 11/16/2022] [Indexed: 12/01/2023] Open
Abstract
Immobilization is considered as a promising strategy toward the practical applications of powdered adsorbent. Herein, three dimensional (3D) printing cylindrical capsules with cross-linked PVA hydrogels membrane in encapsulate Chlorella pyrenoidosa (Cp) were utilized for removal of lead ions. The chemical compositions, hydrogels performance and morphologies of the membranes were determined by Fourier transformed infrared spectroscopy (FTIR), cross-linking degree, swelling degree, membrane flux and scanning electron microscopy (SEM). It is found that PVA cross-linking structure is successfully synthesized on the surface of capsule body and cap due to the presence of PVA in the filament. The lead ions adsorption capacity related to initial concentration of 50 mg/L in 48 h is reached 75.61%, revealing a good removal ability. The self-floating 3D printed capsules device also shows an excellent recovering property. After 7 runs of adsorption experiment, the lead ions adsorption ratio remains 78.56%, which will bring a broad prospect in wastewater treatment, chemical slow release along with sample preparation and separation.
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Affiliation(s)
- Shuzhen Lan
- Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou, China
- College of Chemistry and Materials, Fujian Normal University, Fuzhou, China
| | - Xinshu Xia
- Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou, China
- College of Environment and Resources, Fujian Normal University, Fuzhou, China
| | - Zhen Liu
- Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou, China
- College of Chemistry and Materials, Fujian Normal University, Fuzhou, China
| | - Yujin Yang
- Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou, China
- College of Environment and Resources, Fujian Normal University, Fuzhou, China
| | - Qingrong Qian
- Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou, China
- College of Environment and Resources, Fujian Normal University, Fuzhou, China
| | - Yongjin Luo
- Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou, China
- College of Environment and Resources, Fujian Normal University, Fuzhou, China
| | - Qinghua Chen
- Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou, China
- College of Environment and Resources, Fujian Normal University, Fuzhou, China
| | - Changlin Cao
- Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou, China
- College of Environment and Resources, Fujian Normal University, Fuzhou, China
| | - Liren Xiao
- Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Normal University, Fuzhou, China
- College of Chemistry and Materials, Fujian Normal University, Fuzhou, China
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Hou Y, Ma S, Hao J, Lin C, Zhao J, Sui X. Construction and Ion Transport-Related Applications of the Hydrogel-Based Membrane with 3D Nanochannels. Polymers (Basel) 2022; 14:polym14194037. [PMID: 36235985 PMCID: PMC9571189 DOI: 10.3390/polym14194037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 09/16/2022] [Accepted: 09/20/2022] [Indexed: 11/17/2022] Open
Abstract
Hydrogel is a type of crosslinked three-dimensional polymer network structure gel. It can swell and hold a large amount of water but does not dissolve. It is an excellent membrane material for ion transportation. As transport channels, the chemical structure of hydrogel can be regulated by molecular design, and its three-dimensional structure can be controlled according to the degree of crosslinking. In this review, our prime focus has been on ion transport-related applications based on hydrogel materials. We have briefly elaborated the origin and source of hydrogel materials and summarized the crosslinking mechanisms involved in matrix network construction and the different spatial network structures. Hydrogel structure and the remarkable performance features such as microporosity, ion carrying capability, water holding capacity, and responsiveness to stimuli such as pH, light, temperature, electricity, and magnetic field are discussed. Moreover, emphasis has been made on the application of hydrogels in water purification, energy storage, sensing, and salinity gradient energy conversion. Finally, the prospects and challenges related to hydrogel fabrication and applications are summarized.
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