Reactive & Functional Polymers最新文献_第9页

Polystyrene-based fluorinated ionic receptor for selective removal of perfluoroalkyl contaminants from water

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2025-02-01 DOI: 10.1016/j.reactfunctpolym.2024.106138

Sushant P. Sahu , Oluwaseun T. Adeleye , Samuel Antwi , Fabrizio Donnarumma , Nagapradeep Nidamanuri , Rahul Bhise , Eknath Gadekar , Sanjay Sharma , Radhey Srivastava , Yu Wang

{"title":"Polystyrene-based fluorinated ionic receptor for selective removal of perfluoroalkyl contaminants from water","authors":"Sushant P. Sahu , Oluwaseun T. Adeleye , Samuel Antwi , Fabrizio Donnarumma , Nagapradeep Nidamanuri , Rahul Bhise , Eknath Gadekar , Sanjay Sharma , Radhey Srivastava , Yu Wang","doi":"10.1016/j.reactfunctpolym.2024.106138","DOIUrl":"10.1016/j.reactfunctpolym.2024.106138","url":null,"abstract":"<div><div>Even at very low concentrations, <em>per</em>- and polyfluoroalkyl substances (PFAS) pose a serious threat to human and animal health. Significant efforts have been made to develop water remediation technology for removing PFAS from the environment and groundwater, while also minimizing their discharge into the environment owing to their ubiquitous presence in consumer goods worldwide. In the context of developing selective ion-exchange polymers for PFAS remediation, this work reports the design of polystyrene-based fluorinated anion-exchange polymer bearing quaternary tetraaryl phosphonium cation moieties. The polymer was intended for high-performance and highly selective removal of commonly found PFAS contamination, such as perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid (PFOS), and hexafluoropropylene oxide-dimer acid (HFPO-DA, trade name GenX for the corresponding ammonium salt), at environmentally relevant concentrations from deionized water, drinking water and lake water (Lake Martin, Louisiana). Rapid removal of PFAS from different water matrices with more than 90 % efficiency at 1 ppb starting concentration was observed. The ionic fluoropolymer designed herein favors PFOA, PFOS, and GenX anions over other competing inorganic anions or organic species in solution via irreversible anion exchange which was assisted by strong hydrophobic interactions with the fluorophilic polymer's backbone. The synthesis of the polymer, its structural characterization, and its function in the removal of PFAS in real water matrices were discussed. The findings of this study are significant for developing water purification systems that aim to selectively and rapidly separate perfluoroalkyl compounds from waters at environmental concentrations and beyond.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"207 ","pages":"Article 106138"},"PeriodicalIF":4.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143144831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Black liquor derived lignin adsorbents for removal of organic pollutants from water

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2025-02-01 DOI: 10.1016/j.reactfunctpolym.2025.106185

Hande Barkan Öztürk , Philip Verdross , Alexander Bismarck

{"title":"Black liquor derived lignin adsorbents for removal of organic pollutants from water","authors":"Hande Barkan Öztürk , Philip Verdross , Alexander Bismarck","doi":"10.1016/j.reactfunctpolym.2025.106185","DOIUrl":"10.1016/j.reactfunctpolym.2025.106185","url":null,"abstract":"<div><div>We present the preparation of lignin particles from raw black liquor and their chemical modification, so that they can be used as efficient adsorbents to remove organic pollutants from water. For the production of adsorbent powders, pristine black liquor (as obtained from a pulping mill) was emulsified with epichlorohydrin and Span 80 and cured at elevated temperatures. Phospinic esters and organic sulphates were synthetically introduced to the lignin-backbone to modify the adsorbents. The adsorption of organic model compounds, Paraquat, p-nitrophenol, and malachite green were studied. Kinetic and thermodynamic data of the adsorption processes was obtained experimentally and by fitting mathematical models (Langmuir and Freundlich isotherms). Adsorbents showed adsorption capacities of <em>Q</em><sub><em>e</em></sub> = 62 mg/g for Paraquat, <em>Q</em><sub><em>e</em></sub> = 199 mg/g for p-nitrophenol, and <em>Q</em><sub><em>e</em></sub> = 1200 mg/g for malachite green in batch-adsorption experiments. These values are among the highest for any of the model compounds presented in literature. Adsorption occurred reasonably fast for all compounds, reaching plateau-adsorption within minutes to hours.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"209 ","pages":"Article 106185"},"PeriodicalIF":4.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143166187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High glass transition catalyst-free polybenzoxazine vitrimer through one-pot solventless method

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2025-02-01 DOI: 10.1016/j.reactfunctpolym.2025.106186

Festus Ifeanyi Anagwu , Eleftheria Dossi , Alexandros A. Skordos

{"title":"High glass transition catalyst-free polybenzoxazine vitrimer through one-pot solventless method","authors":"Festus Ifeanyi Anagwu , Eleftheria Dossi , Alexandros A. Skordos","doi":"10.1016/j.reactfunctpolym.2025.106186","DOIUrl":"10.1016/j.reactfunctpolym.2025.106186","url":null,"abstract":"<div><div>A high glass transition polybenzoxazine has been synthesised by a one-pot solventless method via the Mannich condensation of a phenolic disulphide, paraformaldehyde and aniline. The solventless process reduces synthesis time, material costs, and the need for post-synthesis purification. The polybenzoxazine exhibits a glass transition temperature (<em>T</em><sub><em>g</em></sub>) of 155°C and thermosetting behaviour below this temperature. Dynamic disulphide bond metathesis associated with a topological freezing temperature of 78°C and an activation energy of 127 kJ mol<sup>–1</sup> delivers vitrimeric functionality with fast, catalyst-free stress relaxation above <em>T</em><sub><em>g</em></sub>. This material fully relaxes stress within 5 s at 190°C, with thermal degradation beginning above 250°C. It exhibits a glassy modulus of 3.6 GPa, high char yield (57.4%) translating to a high limiting oxygen index (<em>LOI</em>) of 40.5% and excellent environmental resistance, as evidenced by low water uptake (1.4%) after immersion at 75°C for 31 days. The combination of environmental resistance, due to thermosetting character, high glass transition, facile synthesis, high char yield, good processability, and fast stress relaxation position this polybenzoxazine as a promising candidate matrix system for repairable aerospace thermosetting continuous fibre composites.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"209 ","pages":"Article 106186"},"PeriodicalIF":4.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bio-nanocomposites as future food packaging materials: A multi-faceted comparison

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2025-01-31 DOI: 10.1016/j.reactfunctpolym.2025.106184

Murat Yanat , Karin Schroën

{"title":"Bio-nanocomposites as future food packaging materials: A multi-faceted comparison","authors":"Murat Yanat , Karin Schroën","doi":"10.1016/j.reactfunctpolym.2025.106184","DOIUrl":"10.1016/j.reactfunctpolym.2025.106184","url":null,"abstract":"<div><div>Although bio-nanocomposites hold advantages over fossil-based materials, e.g., their price and barrier properties do not measure up to those of classic plastic materials, which prevents their wide-spread application. Still, due to their biodegradability, and lower environmental impact, bio-nanocomposites have attracted considerable interest, especially to address the growing issue of plastic pollution in the environment. In this review, we explore bio-nanocomposites as potential future food packaging materials from multiple perspectives. We focus on key topics related to their use, including their biodegradability, functional features, and their potential for replacing conventional plastic packaging. Furthermore, we highlight significant advancements in bio-nanocomposite research, particularly their ability to improve food preservation through antimicrobial and antioxidant properties. In addition, we address critical challenges that must be overcome for the widespread adoption of bio-nanocomposites in food packaging. These challenges include regulatory issues, the need for standardized legislation, and integration of bio-nanocomposites with existing waste management systems to ensure their environmental benefits are fully realized.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"209 ","pages":"Article 106184"},"PeriodicalIF":4.5,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143300430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of acetylene-modified fluorene-based benzoxazine and toughening with hyperbranched benzoxazines

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2025-01-27 DOI: 10.1016/j.reactfunctpolym.2025.106175

Tao Liu , Zhigang Yuan , XuDong Wang , QiuFei Chen , Athar Ali Khan Gorar , Wen Bin Liu , Jun Wang

{"title":"Synthesis of acetylene-modified fluorene-based benzoxazine and toughening with hyperbranched benzoxazines","authors":"Tao Liu , Zhigang Yuan , XuDong Wang , QiuFei Chen , Athar Ali Khan Gorar , Wen Bin Liu , Jun Wang","doi":"10.1016/j.reactfunctpolym.2025.106175","DOIUrl":"10.1016/j.reactfunctpolym.2025.106175","url":null,"abstract":"<div><div>A new fluorene-based benzoxazine (B-apa) was synthesized from 9, 9-bis (4-hydroxyphenyl) fluorine, polyformaldehyde, and 3-ethynylaniline in a green solvent (poly(ethylene glycol)) by Mannich condensation reaction. B-apa could be produced in yields up to 87.3 %. The cured sample features a high glass transition temperature (<em>T</em><sub>g</sub>) (366 °C) and superior char yield (<em>Y</em><sub>c</sub>) of 63.3 %. To overcome the brittleness of the B-apa resin, hyperbranched benzoxazines (HB-AF) with flexible chains were employed for toughening modification. With the increase of HB-AF addition, differential scanning calorimeter (DSC) tests and curing kinetics showed a significant decrease in the curing enthalpy and activation energy of the copolymers, which facilitated the polymerization reaction. In addition, the flexural properties of the copolymers were greatly improved, especially for the copolymers containing 9 % HB, which was corroborated by the scanning electron microscope (SEM). The thermal stability of the copolymers did not decrease significantly, with <em>Y</em><sub>c</sub> decreasing between 1 and 14 % and <em>T</em><sub>g</sub> decreasing only 3–23 °C. This study presents a strategy for synthesizing thermoset materials that exhibit high thermal stability while utilizing eco-friendly solvents. Additionally, it explores methods for toughening these materials without significantly compromising their thermal properties.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"209 ","pages":"Article 106175"},"PeriodicalIF":4.5,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143166192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High performance crosslinked polyvinylidene fluoride (PVDF) membranes for solvent permeation

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2025-01-23 DOI: 10.1016/j.reactfunctpolym.2025.106174

Boyuan Hao, Waleed Jarman, Hao Peng, Kang Li

{"title":"High performance crosslinked polyvinylidene fluoride (PVDF) membranes for solvent permeation","authors":"Boyuan Hao, Waleed Jarman, Hao Peng, Kang Li","doi":"10.1016/j.reactfunctpolym.2025.106174","DOIUrl":"10.1016/j.reactfunctpolym.2025.106174","url":null,"abstract":"<div><div>Membrane based organic solvent separation is a promising membrane technology of separating solutes from organic solvents in an energy efficient way. However, current commercial polymeric membranes commonly used in aqueous based separations are not suitable for a wide range of organic solvents, exposure to which can lead to swelling, dissolution, or degradation of the membrane materials, compromising separation performance. Here, we prepared a crosslinked PVDF membrane with high permeance of solvents and good solvent resistance achieved by the combined crystallization and diffusion (CCD) method, followed by post-crosslinking the resultant membranes to achieve its solvent resistance. The change of membrane properties was investigated with crosslinking time. A thorough comparison of various diamine crosslinkers (XDA, HDA, DETA, EDA) was also performed. The resultant membrane leads to very high permeances at over 1700 LMH bar<sup>−1</sup> for various organic solvents such as n-hexane, toluene, methanol, acetonitrile, etc. at the membrane pore size of 40 nm. This crosslinked PVDF membrane is not only useful for organic solvent ultrafiltration (OSU) but can also be used as a support for developing thin film composite (TFC) membranes in more selective organic solvent separation applications.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"209 ","pages":"Article 106174"},"PeriodicalIF":4.5,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143166190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Melamine and hydrophobic graphene composite foam with lignin as a green connector for oil–water separation applications

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2025-01-22 DOI: 10.1016/j.reactfunctpolym.2025.106173

Heecheol Yun , Sangwoo Park , Jaewon Choi , Se Youn Cho , Hyo Won Kwak

{"title":"Melamine and hydrophobic graphene composite foam with lignin as a green connector for oil–water separation applications","authors":"Heecheol Yun , Sangwoo Park , Jaewon Choi , Se Youn Cho , Hyo Won Kwak","doi":"10.1016/j.reactfunctpolym.2025.106173","DOIUrl":"10.1016/j.reactfunctpolym.2025.106173","url":null,"abstract":"<div><div>Melamine sponge is widely used in various industrial applications owing to its high specific surface area and excellent mechanical properties. However, its practical use as an oil–water separation material is limited by the complex hydrophobization process and the use of non-renewable additives. Herein, we employed lignin, a wood-based biomass, as an amphiphilic connector to modify melamine foam with alkylated graphene oxide. Lignin was easily coated onto the melamine foam, enhancing its hydrophobicity and allowing for a continuous layer of alkylated graphene oxide. This process considerably improved the hydrophobicity of melamine foam, achieving a contact angle of 132.2°. Consequently, the hydrophobic melamine foam demonstrated selective oil absorption in oil-contaminated environments, with an oil adsorption capacity of 42–158 g/g and an excellent oil absorption efficiency of over 97 % even after 20 cycles. The additional alkylated graphene coating further enhanced flux when used as a filter material, enabling rapid and selective oil removal. Our study presents a straightforward, eco-friendly method for converting hydrophilic materials into hydrophobic surfaces using biomass-derived lignin.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"209 ","pages":"Article 106173"},"PeriodicalIF":4.5,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143166188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Oxetane-based transparent anti-smudge coatings via solvent-free spray-deposition and cationic photopolymerization

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2025-01-22 DOI: 10.1016/j.reactfunctpolym.2025.106171

Cangül Gümüş, Emrah Çakmakçi

{"title":"Oxetane-based transparent anti-smudge coatings via solvent-free spray-deposition and cationic photopolymerization","authors":"Cangül Gümüş, Emrah Çakmakçi","doi":"10.1016/j.reactfunctpolym.2025.106171","DOIUrl":"10.1016/j.reactfunctpolym.2025.106171","url":null,"abstract":"<div><div>Anti-smudge coatings are hydrophobic coatings that repel both water and oil. However, preparing substrate-independent, transparent, solvent-free, and easy-to-apply anti-smudge coatings is challenging. In this paper, we report a facile route for the preparation of anti-smudge coatings by using an oxetane-based photocurable formulation. 5 different additives (fluorinated alcohols, poly(dimethyl siloxane), hydrophobic silica nanoparticles, modified hollow silica nanoparticles, and modified polyhedral oligomeric silsesquioxane (POSS) particles were utilized to impart hydrophobicity. Fluorine-modified POSS particle-containing formulations displayed the best properties. The POSS-containing formulations were spray-coated onto different substrates. Coatings displayed high transparency and repelled water, coffee, and ink. Moreover, owing to the low viscosity of the oxetanes, the coating formulations could be sprayed without any solvent. Overall, herein, the advantages of cationic photocuring such as rapid curing and insensitivity to oxygen inhibition are combined with the low viscosity of oxetane monomers, and substrate-independent coatings are prepared. We think there is much room for these coatings to be used for a wide range of applications.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"209 ","pages":"Article 106171"},"PeriodicalIF":4.5,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143166201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Acrylonitrile-styrene–acrylate@ silicone three layers core-shell nanostructure copolymer with excellent impact toughness and highness-strength balance

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2025-01-21 DOI: 10.1016/j.reactfunctpolym.2025.106168

Jin Huang, Jiajun Ma, Junxiao Yang

{"title":"Acrylonitrile-styrene–acrylate@ silicone three layers core-shell nanostructure copolymer with excellent impact toughness and highness-strength balance","authors":"Jin Huang, Jiajun Ma, Junxiao Yang","doi":"10.1016/j.reactfunctpolym.2025.106168","DOIUrl":"10.1016/j.reactfunctpolym.2025.106168","url":null,"abstract":"<div><div>Due to its excellent weather resistance, acrylonitrile-styrene-acrylate (ASA) resin is widely utilized. However, one critical challenge is its unsatisfactory impact property, which restricts its further application. Although various studies have been reported on improving the toughening effect of ASA resin, most of them reduce its strength and modulus. It is difficult to strike a balance between the improved toughening effect and the reduced strength and modulus. Herein, we designed a silicone rubber filled acrylate core to synthesize an acrylonitrile-styrene–acrylate@ silicone (Si-ASA) three-layer core-shell nanostructure copolymer via three-step emulsion polymerization. Introducing ductile silicone rubber into the interior of acrylate rubber microparticles can increase and refine the cavitation of the rubber layer upon impact. Meanwhile, the fibrillation of silicone cores can absorb impact energy and bridge cracks. SEM images demonstrated the formation of the three-layer nanostructure of Si-ASA. The mechanical property results showed that the prepared Si-ASA exhibits a significantly increased impact strength of approximately 19.5KJ/m<sup>2</sup>, which is nearly twice that of the commercial ASA. Considering the much higher impact property of Si-ASA, this slightly higher of modulus is significant. These indicate that the Si-ASA three-layer core-shell nanostructure copolymer, when applied to ASA resin helps in achieving rigid-tough balanced materials.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"209 ","pages":"Article 106168"},"PeriodicalIF":4.5,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143166191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Selective adsorption of silver(I) by dimercaptosuccinic acid (DMSA) functionalized polyhedral oligomeric silsesquioxane (POSS)-based hybrid polymer: Behavior and mechanism

IF 4.5 3区工程技术

Reactive & Functional Polymers Pub Date : 2025-01-20 DOI: 10.1016/j.reactfunctpolym.2025.106170

Lin Yang , Xueling Liu , Bingyue Song , Sixian Yang , Xiaojie Zhang , Chong Zhao , Yixiao Wu , Lei Zhang , Yanjun Huang

{"title":"Selective adsorption of silver(I) by dimercaptosuccinic acid (DMSA) functionalized polyhedral oligomeric silsesquioxane (POSS)-based hybrid polymer: Behavior and mechanism","authors":"Lin Yang , Xueling Liu , Bingyue Song , Sixian Yang , Xiaojie Zhang , Chong Zhao , Yixiao Wu , Lei Zhang , Yanjun Huang","doi":"10.1016/j.reactfunctpolym.2025.106170","DOIUrl":"10.1016/j.reactfunctpolym.2025.106170","url":null,"abstract":"<div><div>Effective and selective recovery of precious metal silver (Ag(I)) from wastewater can promote resource recycling and mitigate environmental pollution. In this study, dimercaptosuccinic acid (DMSA) functionalized polyhedral oligomeric silsesquioxane (POSS)-based hybrid polymer (DPHP) was synthesized and employed for the adsorption of Ag(I) from aqueous solution. The obtained adsorbent was characterized using SEM-EDS, XPS, solid-state <sup>13</sup>C NMR, and <sup>29</sup>Si NMR spectra. Batch adsorption experiments were conducted to evaluate the adsorption performance of DPHP for Ag(I). The results revealed that the maximum adsorption capacity of DPHP for Ag(I) was 494.65 mg g<sup>−1</sup> at pH 4, and the adsorption process could be well described by pseudo-second-order and Sips models. Thermodynamic studies implied the adsorption of Ag(I) was an endothermic and spontaneous adsorption process in nature. Adsorption and desorption experiments demonstrated that the regeneration efficiency of DPHP remained above 83 % after five cycles and the preconcentration factor of DPHP was determined to be 125. Furthermore, DPHP exhibited selectivity to Ag(I) in solutions containing a variety of competitive metal ions and simulated industrial wastewater. Based on density functional theory (DFT) calculations, as well as XPS, FTIR, and Raman analyses, the interaction between Ag(I) and DPHP involved electrostatic attraction, ion exchange, and coordination, with the coordination mainly between thioether and carboxy groups and Ag(I) ions. Overall, DPHP is a promising adsorbent for the recovery of Ag(I) from aqueous solutions.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"209 ","pages":"Article 106170"},"PeriodicalIF":4.5,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143166194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0