Journal of Polymers and the Environment最新文献

{"title":"Electrospun Gelatin Nanofibers Incorporating ZIF-8@Polydopamine Nanoparticles as Wound Dressing with Improved Mechanical and Antibacterial Properties","authors":"Sarah Hosseinidoust,&nbsp;Azadeh Ghaee,&nbsp;Atiye Abednejad,&nbsp;Seyedeh Mohadeseh Ghoreyshi","doi":"10.1007/s10924-025-03606-4","DOIUrl":"10.1007/s10924-025-03606-4","url":null,"abstract":"<div><p>Chronic wounds represent a significant healthcare challenge, demanding the development of advanced wound dressings capable of creating an optimal microenvironment to support the healing process. This study engineered a versatile platform for wound dressing applications by incorporating Polydopamine (PDA) nanoparticles (NPs)-modified Zeolite Imidazolate Framework-8 (ZIF-8) into gelatin-based nanofibers. The fabrication process involved electrospinning a gelatin solution containing varying concentrations of modified ZIF-8 NPs, which provided wound dressings with enhanced mechanical characteristics, improved adhesion, and antibacterial properties. Different analytical methods, such as FTIR, FESEM, Raman, and XRD, were employed for the characterization of the prepared NPs. In addition, the morphology, physicochemical properties, and biological behavior of the electrospun samples were investigated through tensile tests, antibacterial assays, and cytotoxicity evaluations on the nanofibrous mats. The findings demonstrated a slight increase in NP diameter from 65 nm to 74 nm after modifying ZIF-8 with PDA, which resulted in a change in the color of the NPs from white to black. SEM images confirmed a rise in gelatin fiber diameter from 158 nm in GEL-Z0 to 241 nm in GEL-Z5. The tensile strength improved from 13.75 to 16.30 MPa in GEL-Z0 and GEL-Z1, respectively. Biological analysis, including MTT assays, cell adhesion studies, and antibacterial tests, revealed desirable cell viability and adhesion, as well as reduced bacterial colonization on the GEL-Z1 nanofibers. Overall, our findings suggest that gelatin-based nanofibrous mats containing ZIF-8@PDA NPs exhibit enhanced mechanical properties, controlled water absorption, high compatibility, and inherent antibacterial activity to facilitate accelerated wound healing.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 8","pages":"3599 - 3620"},"PeriodicalIF":5.0,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145163237","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}

{"title":"Acoustic Cavitation Assisted Preparation and Characterization of Polyhydroxy Butyrate-Chitosan Composite","authors":"Ananda J. Jadhav,&nbsp;Pranit Patil,&nbsp;Abhijeet D. Goswami,&nbsp;Chandrakant R. Holkar,&nbsp;Dipak V. Pinjari","doi":"10.1007/s10924-025-03611-7","DOIUrl":"10.1007/s10924-025-03611-7","url":null,"abstract":"<div><p>In the present study, biodegradable polyhydroxybutyrate-chitosan blends were prepared using an acoustic cavitation-assisted precipitation method. The effects of different ratios of polyhydroxybutyrate and chitosan on the thermal and morphological properties of the blends were investigated. Differential scanning calorimetry showed a shift in the melting point to 164 °C for the polyhydroxybutyrate–chitosan blend, compared to the initial melting point of 97 °C for chitosan. It was also observed that the crystallinity of the blends significantly increased due to the addition of polyhydroxybutyrate into chitosan. Fourier transform infrared spectroscopy and NMR studies confirmed the chemical interactions between polyhydroxybutyrate and chitosan. Scanning electron microscopy analysis illustrated noticeable changes in surface morphology of the polyhydroxybutyrate-chitosan blends compared to virgin polyhydroxybutyrate and chitosan individually. Adjusting the proportion of chitosan played a pivotal role in regulating the composite’s characteristics-an essential aspect for its potential biomedical applications in the future.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 8","pages":"3587 - 3598"},"PeriodicalIF":5.0,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162106","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}

{"title":"Development of 3D-Printed Polycaprolactone-Hardystonite Composite Scaffolds for Bone Tissue Engineering Applications","authors":"Marziyeh Hasanpour,&nbsp;Rahamatollah Emadi,&nbsp;Mohammad Khodaei,&nbsp;Alireza Valanezhad,&nbsp;Negin Mazrooei Sebdani","doi":"10.1007/s10924-025-03609-1","DOIUrl":"10.1007/s10924-025-03609-1","url":null,"abstract":"<div><p>Three-dimensional (3D) printing technology is developing due to its ability to fabricate customized scaffolds associated with the geometry of bone defect sites based on medical imaging. Polycaprolactone (PCL)-ceramic composite biomaterials are appropriate choices because of their higher mechanical properties, bioactivity, and biocompatibility as a scaffold for bone defect sites. In the current study, the hardystonite (HT) bioceramic powder was synthesized by the sol-gel method and 3D-printed PCL-HT scaffolds (containing 0%, 10%, 20%, and 30% HT) were developed through the fused deposition modeling (FDM) 3D printing method. The morphology, mechanical strength, degradability, bioactivity, wettability, and biocompatibility of 3D-printed scaffolds were investigated. Contact angle measurements indicated that increasing the HT content enhanced the hydrophilicity of the composite scaffolds. Based on the compressive strength test results, the composite scaffold containing 20% HT exhibited the highest compressive strength (19.3 ± 2.5 MPa) and elastic modulus (76.9 ± 4.9 MPa). Additionally, it was found that composite scaffolds demonstrated a better apatite-forming ability and a higher degradation rate compared to pure PCL scaffolds. In accordance with the biocompatibility results, HT particles enhanced the viability and attachment of MG63 cells, so that cell viability reached up to 95% after one day of culture for the PCL-HT 20% scaffold. Based on the results, a 3D-printed PCL scaffold containing 20 wt% HT would be an appropriate option for bone tissue engineering applications.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 8","pages":"3570 - 3586"},"PeriodicalIF":5.0,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161887","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}

{"title":"Evaluating the in Vitro Toxicity of 4-MBC and Microplastics: The Role of PE and PVC as Carriers","authors":"Nataša Milić,&nbsp;Maja Milanović,&nbsp;Jovana Drljača Lero,&nbsp;Aleksandra Popović,&nbsp;Sanja Vasiljević,&nbsp;Tajana Simetić,&nbsp;Aleksandra Tubić","doi":"10.1007/s10924-025-03602-8","DOIUrl":"10.1007/s10924-025-03602-8","url":null,"abstract":"<div><p>UV filter, 4-methylbenzylidene camphor (4-MBC) is identified as endocrine disrupting chemical that is frequently detected in the aquatic environment. Due to its hydrophobic nature and stability under UV radiation, the concomitant presence of both 4-MBC and microplastics (MPs) enlightens the possible impacts of their combined effects on human health. Hence, the aim of this research was to evaluate the adsorption capacity of 4-MBC in the presence of two commonly encountered types of MPs in the environment: polyvinyl chloride (PVC), and polyethylene (PE). Having in mind that inhalation is one of the primary exposure routes to MPs, the human embryonic lung fibroblast cell line (MRC-5) was used to study the individual cytotoxicity of 4-MBC, PVC, and PE, as well as their sorbed samples. The equilibrium adsorption capacity of 4-MBC on PE was higher compared to PVC. The combined effects of PVC + 4-MBC as well as PE + 4-MBC exerted non-linear dose-response dynamics. The enhanced cytotoxicity of adsorbed samples was detected. Moreover, more pronounced cytotoxic effect was observed in cells treated with PE + 4-MBC. The cooperative index showed an additive effect for 4-MBC and PVC, while 4-MBC and PE exhibited a synergistic interaction. Based on the obtained results PE can sorb and concentrate a higher amount of 4-MBC compared to PVC.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 8","pages":"3555 - 3569"},"PeriodicalIF":5.0,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161576","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}

{"title":"Fabrication of Advanced Films Composed of Carrageenan, Sodium Alginate, and Bacterial Nanocellulose Enriched with D. Viscosa Extract and Empagliflozin Drug for Diabetic Wound Healing; an in-vitro and in-vivo Analysis","authors":"Farzaneh Alemohammad,&nbsp;Sajad Abdollahi,&nbsp;Zeinab Raoufi,&nbsp;Eskandar Moghimipour","doi":"10.1007/s10924-025-03604-6","DOIUrl":"10.1007/s10924-025-03604-6","url":null,"abstract":"<div><p>As diabetes mellitus can impede wound healing, in this study, nano-biocompatible films were fabricated via solution-casting to heal diabetic wounds using bacterial nanocellulose, sodium alginate, and carrageenan. To control diabetes, the antidiabetic EMP and hydroalcoholic extract of <i>Dodonaea viscosa</i> were added to the films. Besides the mechanical properties of films such as swelling, moisture content, moisture uptake, gel content, and tensile stress, biological characteristics including hematopoietic coagulation, antibacterial, and anti-inflammatory effects were also evaluated and FTIR-ATR and SEM were applied to analyze the chemical composition and morphology of them. Diabetic rat models evaluated the films’ wound-healing potential. Results indicated adding plant extract to EMP-containing films enhanced anti-inflammatory effects, improved water absorption, and controlled drug release within 24 h. The film with 1.5% extract showed 82.38 ± 1.19% denaturation. Blood glucose levels in diabetic rats treated for 14 days with the extract or extract plus EMP were 93 ± 2.91 g/dl and 82.30 ± 3.86, respectively, significantly lower than the diabetic control (361 ± 3.21). The films with extract and EMP promoted faster wound healing in diabetic rats. This study presents a composite film with D. viscosa extract that lowers blood glucose and enhances wound healing in rat models while reducing inflammation and showing antibacterial properties.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 7","pages":"3407 - 3427"},"PeriodicalIF":5.0,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145171788","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}

{"title":"Melt Rheology of Poly(L-lactic Acid) Hybrids with Mesoporous Hollow Silica Nanospheres","authors":"Shizhao Wang,&nbsp;Yong Ku Kwon","doi":"10.1007/s10924-025-03593-6","DOIUrl":"10.1007/s10924-025-03593-6","url":null,"abstract":"<div><p>A positively charged poly(styrene-co-butyl acrylate-co-2-methacryloxyethyltrimethyl ammonium chloride) (PSBM) copolymer was synthesized as a thermal sacrificial core-template via soap-free emulsion copolymerization. With cetyltrimethylammonium bromide (CTAB), PSBM@surfactant/silica core-shell nanocomposites with uniform shell thickness formed through charge density matching between tetraethyl orthosilicate (TEOS) and self-assembly. Thermal decomposition resulted in mesoporous hollow silica nanospheres. These nanospheres were functionalized using coupling agents and incorporated into poly(L-lactic acid) (PLA) matrices, significantly enhancing the mechanical and rheological properties of PLA. Compared to pure PLA, the composites exhibited improved Young’s modulus, tensile strength, and toughness. Rheological analysis confirmed the formation of a stable filler network, with increased storage modulus and relaxation time. The Carreau-Yasuda model confirmed the absence of phase separation and the formation of a stable 3D network.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 7","pages":"3467 - 3476"},"PeriodicalIF":5.0,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145171779","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}

{"title":"Affinity Monolithic Cryogel Column for an Innovative Approach in BanLec Purification","authors":"Ivonéa Soares do Nascimento,&nbsp;Charline Soares dos Santos Rolim,&nbsp;Alexandre Araújo Pimentel,&nbsp;Jennifer Renata Brasil dos Santos,&nbsp;Yara Gomes de Souza,&nbsp;Ted Possidônio dos Santos,&nbsp;Jonathan Barbosa Santos,&nbsp;Renata Cristina Ferreira Bonomo,&nbsp;Leandro Soares Santos,&nbsp;Rafael da Costa Ilhéu Fontan","doi":"10.1007/s10924-025-03610-8","DOIUrl":"10.1007/s10924-025-03610-8","url":null,"abstract":"<div><p>Banana lectin (BanLec) is a glycoprotein with the ability to bind reversibly to carbohydrates present on the cell surface. It has several biotechnological applications, including antiviral, antitumor, antibacterial and anticancer activities. This study aimed was to purify the BanLec present in the fruit of the plantain (Musa spp.) using a supermacroporous monolithic column functionalized with D-glucosamine and to characterize its biological properties. To this end, a cryogel based on acrylamide and bis-acrylamide was developed under freezing conditions (− 12 °C) and then functionalized with D-glucosamine (pAAm-Glucosamine). The matrix was characterized in terms of its physical, morphological and hydrodynamic structure, including analyses of porosity (92.4%, with pore diameters between 4 µm and 9 µm), degree of expansion (21.4 L.kg⁻¹), swelling capacity (17.7 kg.kg⁻¹), Fourier transform infrared spectroscopy (FTIR), residence time distribution (DTR), apparent axial dispersion coefficient (Dax), height of equivalent theoretical plates (HETP) and flow permeability (1.74 × 10⁻¹² m²), as well as scanning electron microscopy (SEM). BanLec was purified from 100 g of crude plantain extract using the ÄKTA Pure 25 L system in triplicate. The purified lectin was characterized by SDS-PAGE, HPLC and haemagglutination assays to assess its biological properties. The yield obtained was 0.053 mg of protein per gram of fruit, with positive reactivity in the hemagglutination test (titer of 64 HU and specific activity of 69.94 HU mg.mL⁻¹). BanLec showed thermal stability and resistance to pH variations between 3.0 and 7.0, as well as specificity for glucose, glucosamine and mannose in carbohydrate inhibition tests. Analysis by SDS-PAGE revealed a band with a molecular mass of approximately 14.4 kDa, confirmed by the ÄKTA system and by HPLC, in which elution resulted in a single peak with a molecular mass of 20.48 kDa. The results obtained confirm that the approach used for the extraction and purification of BanLec was highly efficient, preserving its biological activity as demonstrated by hemagglutination assays. These results not only highlight the effectiveness of the method used, but also reinforce the promising potential of BanLec for various biotechnological applications.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 7","pages":"3428 - 3442"},"PeriodicalIF":5.0,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170948","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}

{"title":"Efficient Depolymerization and Recycling of Poly(trimethylene terephthalate) Using 1,3-Propanediol as Reaction Media","authors":"Zengwei Guo,&nbsp;Anna Edsberger","doi":"10.1007/s10924-025-03580-x","DOIUrl":"10.1007/s10924-025-03580-x","url":null,"abstract":"<div><p>The chemical depolymerization of poly(trimethylene terephthalate) (PTT) in 1,3- propanediol (1,3-PDO) was investigated in this study. After depolymerization, the bis-(3-hydroxypropyl terephthalate) (BHPT) was recovered, which can be directly utilized as monomer in the synthesis of PTT. Zinc acetate (Zn(OAc)₂) was found to be the most suitable catalyst in the depolymerization of PTT in 1,3-PDO since a high monomer yield was achieved and no side reactions were triggered during the depolymerization process. The reaction parameters for depolymerization in the presence of Zn(OAc)₂ catalyst was optimized. Under the optimized depolymerization conditions: reaction temperature of 220 °C, catalyst concentration of 0.2 wt% and a ratio of 1,3-PDO to PTT of 8:1, the recovered BHPT monomer yield was 83 mol% within 45 min. Then, the recovered BHPT monomer was directly regenerated into PTT though a single polycondensation process. Comparing with PTT synthesized from virgin dimethyl terephthalate (DMT), the regenerated PTT shows a better quality in terms of color.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 7","pages":"3443 - 3453"},"PeriodicalIF":5.0,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10924-025-03580-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145171789","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}

{"title":"Life Cycle Assessment of Novel Partially Bio-Based Unsaturated Polyester Resins","authors":"A. T. Shahid,&nbsp;M. A. Hofmann,&nbsp;J. D. Silvestre,&nbsp;M. Garrido,&nbsp;J. R. Correia","doi":"10.1007/s10924-025-03596-3","DOIUrl":"10.1007/s10924-025-03596-3","url":null,"abstract":"<div><p>The growing concern over climate change and sustainability is promoting the development of partially bio-based unsaturated polyester resins (UPRs). However, being developed from renewable sources does not necessarily guarantee a better environmental profile for these materials, which justifies a detailed investigation of their environmental impacts. This paper presents a cradle-to-gate life cycle assessment (LCA) of five recently developed bio-based UPR formulations comprising renewably sourced chemical compounds, namely fumaric acid, dimer fatty acid, 2,5-furandicarboxylic acid, 1,3-propanediol, and isosorbide, as well as partially replacing styrene (50%) with 2-hydroxyethyl methacrylate as reactive diluent, considering inventory data from literature and purpose-made processes. As a benchmark, a typical oil-based UPR composition was also considered. The bio-based UPRs show improved environmental performance in various categories (e.g., climate change total, ozone depletion), reducing environmental impacts up to 90%. On the other hand, worse environmental performance was found in acidification, eutrophication (freshwater, terrestrial), and renewable primary energy impact categories. The main contributors to the higher impacts of the bio-based UPRs were found to be 2,5-furandicarboxylic acid, 1,3-propanediol, and 2-hydroxyethyl methacrylate. Fumaric acid and 1,3-propanediol have significant contributions to CO₂ sequestration. The single scores for the bio-based UPRs also show a reduction in impact ranging between 18 and 39% compared to the oil-based UPR.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 7","pages":"3329 - 3347"},"PeriodicalIF":5.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10924-025-03596-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170376","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}

{"title":"Machine Learning-based Prediction and Experimental Validation of Cr (VI) Adsorption Capacity of Chitosan-based Composites","authors":"Fatemeh Yazdi,&nbsp;Mohammad Sepehrian,&nbsp;Mansoor Anbia","doi":"10.1007/s10924-025-03594-5","DOIUrl":"10.1007/s10924-025-03594-5","url":null,"abstract":"<div><p>The removal efficiency of Cr (VI) by chitosan (CS)-based composites under various working conditions can be accurately predicted using machine learning (ML) models trained on data from the literature. In this study, ensemble algorithms such as Extreme Gradient Boosting, Random Forest, and Adaptive Boost were employed for predictive modeling. Among these, the AdaBoost model demonstrated superior performance in forecasting the adsorption capacity of CS-based materials for Cr (VI) in aqueous solutions. Feature selection analysis identified initial Cr (VI) concentration, reaction time, adsorbent dosage, and solution pH as critical input parameters influencing adsorption capacity, with solution pH exerting the most significant impact (71%). The AdaBoost model emerged as the most suitable for predicting Cr (VI) adsorption, achieving robust performance metrics (R² = 0.830, MSE = 5.812, MAE = 0.008). To validate the model, a novel CS-based adsorbent (biochar-nanochitosan-zirconium (BC-nCS-Zr)) was tested experimentally, yielding results closely aligned with the Adaptive Boost predictions (R² = 0.825, RMSE = 7.406). This study highlights the potential of ML models in optimizing Cr (VI) removal processes using CS-based adsorbents. By providing an efficient alternative to costly and time-intensive experiments, it presents a promising pathway to reducing water pollution and improving environmental and public health outcomes.</p></div>","PeriodicalId":659,"journal":{"name":"Journal of Polymers and the Environment","volume":"33 7","pages":"3312 - 3328"},"PeriodicalIF":5.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145171178","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}