Eun Jung Sim , Kumaresan Sakthiabirami , Tae Gon Jung , Seong Kyeong Jo , Su Jung Lee , Pai Xu , Ha Kyoung Sung , Eun Hye Lee , Ki Chull Yoon , Kwan Su Kang , Yong Hoon Jeong , David B. Thordarson , Choong Sik Lee , Sung Min Kim , Chan Kang , Jae Hwang Song , Won Ho Park
{"title":"Bioabsorbable PLA/PHA composite pins for orthopedic applications: In vitro and in vivo study","authors":"Eun Jung Sim , Kumaresan Sakthiabirami , Tae Gon Jung , Seong Kyeong Jo , Su Jung Lee , Pai Xu , Ha Kyoung Sung , Eun Hye Lee , Ki Chull Yoon , Kwan Su Kang , Yong Hoon Jeong , David B. Thordarson , Choong Sik Lee , Sung Min Kim , Chan Kang , Jae Hwang Song , Won Ho Park","doi":"10.1016/j.jiec.2025.03.023","DOIUrl":"10.1016/j.jiec.2025.03.023","url":null,"abstract":"<div><div>Poly(lactic acid) (PLA) is a bioabsorbable polymer that is commonly used in orthopedic implants. However, PLA implants can refracture owing to their inherent brittleness and inflammation caused by their acidic degradation products. Polyhydroxyalkanoates (PHAs) are biodegradable polyester derived from microorganisms. Some types such as poly (4-hydroxybutyrate) (P4HB), can be molded and processed at 150 ℃. PHAs can exhibit semi-crystalline or amorphous properties, depending on their composition and structure. Furthermore, PHA can be blended with PLA to enhance the stability and flexibility of the implant. In this study, we fabricated a pin-type implant composed of poly(3-hydroxybutyrate-<em>co</em>-4-hydroxybutyrate) (P3HB-4HB) using injection molding and investigated their applicability as an orthopedic implant through<!--> <em>in vitro<!--> </em>and<!--> <em>in vivo</em> <!-->tests. Remarkably, the PLA/PHA pin did not exhibit cytotoxicity in<!--> <em>in vitro</em> <!-->experiments using MC3T3-E1cells. A rat model of long bone fracture was used for the<!--> <em>in vivo</em> <!-->study. <span><span>Overall, the brittleness of the conventional PLA was decreased by blending it with<!--> </span><svg><path></path></svg></span>P3HB-4HB (PHA).<!--> <em>In vivo<!--> </em>studies revealed that the bone union rate of PLA/PHA pins was higher than that of PLA pins. The prepared PLA/PHA composite pin offers superior mechanical properties and enhanced bone healing, making them a promising implant for orthopedic applications.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"146 ","pages":"Pages 861-870"},"PeriodicalIF":5.9,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783410","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}
Yu Qing, Yongzheng Jia, Xiaolong Xing, Jianbang Ge, Mingyong Wang
{"title":"Selective vanadium extraction by reductive acid leaching from ultra-low vanadium spent V2O5-WO3/TiO2 catalysts","authors":"Yu Qing, Yongzheng Jia, Xiaolong Xing, Jianbang Ge, Mingyong Wang","doi":"10.1016/j.jiec.2025.03.013","DOIUrl":"10.1016/j.jiec.2025.03.013","url":null,"abstract":"<div><div>Spent V<sub>2</sub>O<sub>5</sub>-WO<sub>3</sub>/TiO<sub>2</sub> catalyst is a harmful but valuable secondary resources. Efficient recovery of vanadium from spent V<sub>2</sub>O<sub>5</sub>-WO<sub>3</sub>/TiO<sub>2</sub> catalyst is still a great challenge. Here, a selective leaching and enrichment route of vanadium from ultra-low vanadium spent V<sub>2</sub>O<sub>5</sub>-WO<sub>3</sub>/TiO<sub>2</sub> catalyst is proposed by reductive acid leaching using clean oxalic acid and iron salt precipitation. The composition, structure and element valence of spent V<sub>2</sub>O<sub>5</sub>-WO<sub>3</sub>/TiO<sub>2</sub> catalyst are firstly characterized. Thermodynamic calculations of V-H<sub>2</sub>SO<sub>4</sub>-H<sub>2</sub>O system are carried out to determine the existence form of vanadium and reaction feasibility between vanadium oxides and acid. It is found that oxalic acid is more efficient reducing agent in acidic solution for the conversion of V(5+) to V(4+). According to potential-pH diagram of V-H<sub>2</sub>SO<sub>4</sub>-H<sub>2</sub>O system, high temperature and low pH bring about high reducing potentials of V(5+) to V(4+). The effects of temperature, liquid-to-solid ratio, H<sub>2</sub>SO<sub>4</sub> concentration and leaching time on the leaching rate of V are investigated. At optimal conditions, the leaching rate of V from ultra-low vanadium spent V<sub>2</sub>O<sub>5</sub>-WO<sub>3</sub>/TiO<sub>2</sub> catalyst reaches 90.13 %, and vanadium concentration in the leach solution is 1.23 g/L. By the iron salt precipitation, vanadium-rich slag with vanadium content of 25.08 wt% is obtained and a high-quality raw material for further vanadium extraction.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"146 ","pages":"Pages 853-860"},"PeriodicalIF":5.9,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783409","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}
Tushar R. Yadav , Aadesh R. Shrotri , Pranjali N. Kate , George Devasia , Prashant S. Niphadkar , Nilesh A. Mali , Sailaja Krishnamurty , Vijay V. Bokade , Sachin U. Nandanwar
{"title":"Binderless low silica X zeolite for methane separation from binary CO2/CH4 biogas stream: A comprehensive experimental and computational study","authors":"Tushar R. Yadav , Aadesh R. Shrotri , Pranjali N. Kate , George Devasia , Prashant S. Niphadkar , Nilesh A. Mali , Sailaja Krishnamurty , Vijay V. Bokade , Sachin U. Nandanwar","doi":"10.1016/j.jiec.2025.02.031","DOIUrl":"10.1016/j.jiec.2025.02.031","url":null,"abstract":"<div><div>This study presents the synthesis of binderless Na-LSX (B-Na-LSX) and binderless NaK-LSX (B-NaK-LSX). XRD, SEM, EDS, and N<sub>2</sub> physisorption were used for characterization of samples. Computational modelling of prepared sorbent was performed for the fundamental understanding of zeolite topology and adsorption behaviour. The breakthrough experiments are used to evaluate the adsorption capacities on CO<sub>2</sub>/CH<sub>4</sub> (40/60 vol%) binary biogas stream. The results were compared with commercial Na-LSX (C-Na-LSX). The breakthrough adsorption capacity of B-Na-LSX was 3.08 mmol g<sup>−1</sup> and 0.29 mmol g<sup>−1</sup> of CO<sub>2</sub> and CH<sub>4</sub>, respectively, at 300 K and 1 bar. CO<sub>2</sub> sorption capacity of B-Na-LSX was ∼11 % and ∼17 % higher than B-NaK-LSX (2.77 mmol g<sup>−1</sup>) and C-Na-LSX (2.56 mmol g<sup>−1</sup>), respectively. DFT study reveals that the higher adsorption of CO<sub>2</sub> over CH<sub>4</sub> was attributed to higher charge transfer from CO<sub>2</sub> to zeolite framework. Dual-bed six-step Pressure Swing Adsorption (PSA) was performed on B-Na-LSX at 6 bar. ∼232 cycles were run with above 98 % of CH<sub>4</sub> purity and ∼74 % of recovery. The life-cycle test of sorbent was studied. It was implied that the designed sorbent is effective to produce the high purity of CH<sub>4</sub> and can be utilized for a longer period for CH<sub>4</sub> production.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"149 ","pages":"Pages 705-719"},"PeriodicalIF":5.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144241763","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":"A review on experimental and theoretical aspects of anti-corrosion polymer coatings reinforced with MXene-based nanosheets","authors":"Xiaohong Ji , Sepideh Pourhashem , Abdolvahab Seif , Mauro Francesco Sgroi , Majid Mirzaee , Jizhou Duan , Alimorad Rashidi , Baorong Hou","doi":"10.1016/j.jiec.2025.02.016","DOIUrl":"10.1016/j.jiec.2025.02.016","url":null,"abstract":"<div><div>The main goal of this review paper is to introduce the potential of MXene-based nanofillers in enhancing the corrosion protection efficiency of polymer coatings. At first glance, the pros and cons of MXene nanosheets are presented and compared with other nanofillers, and different ways of modifying the MXene-based nanosheets are considered. The modification methods are divided into three main categories including covalent or non-covalent functionalization, synthesis of nanohybrids, and co-approach of nanohybrid preparation and functionalization. Moreover, theoretical studies about anti-corrosion polymer/MXene nanocomposite coatings are presented to reveal the importance of theoretical simulations in addition to experimental results. This review will shed light on future scientific research about MXene nanosheets and their industrial application in the coating industry.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"149 ","pages":"Pages 233-258"},"PeriodicalIF":5.9,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242127","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}
Mohd Fahad , Arbaz Waqar , Dongkyou Park , Byungki Kim
{"title":"Flexible MXene/PVDF composite-based piezoelectric device (FPED) for dual applications in energy harvesting and smart IoT-driven gaming","authors":"Mohd Fahad , Arbaz Waqar , Dongkyou Park , Byungki Kim","doi":"10.1016/j.jiec.2025.02.027","DOIUrl":"10.1016/j.jiec.2025.02.027","url":null,"abstract":"<div><div>Recent advances in energy harvesting and IoT technologies elevate the significance of flexible piezoelectric materials, particularly their dual role in energy generation and functioning as sensors in electronic devices. In this study, Ti<sub>3</sub>C<sub>2</sub>T<span><math><msub><mrow></mrow><mrow><mi>x</mi></mrow></msub></math></span> (MXene), synthesized via in-situ chemical reactions and hydrothermal treatment, and integrated into a PVDF matrix to create a flexible MXene/PVDF composite device (FPED) using the solvent-casting method. Structural and morphological analyses confirmed the successful integration of MXene into PVDF, resulting in an-enhanced flexible crystalline structure and significantly improved piezoelectric properties. The FPED exhibited higher piezoelectric performance (V<span><math><msub><mrow></mrow><mrow><mi>O</mi><mi>C</mi></mrow></msub></math></span> <span><math><mo>∼</mo></math></span> 7.98 V.) compared to the PVDF device (V<span><math><msub><mrow></mrow><mrow><mi>O</mi><mi>C</mi></mrow></msub></math></span> <span><math><mo>∼</mo></math></span> 2.02 V.), by improving the interfacial polarization and enhancing charge transfer properties under loads. FPED also showed improved stress tolerance by efficiently transferring stress from MXene layers to the PVDF matrix. In addition, FPED exhibited excellent performance in storing electrical energy (V<span><math><msub><mrow></mrow><mrow><mi>O</mi><mi>C</mi></mrow></msub></math></span> <span><math><mo>∼</mo></math></span> 2.30 V) within 12 s in a 22 <span><math><mi>μ</mi></math></span>F capacitor and powering LEDs by finger tapping. FPED showed significant potential for energy harvesting and monitoring through human activity. Furthermore, FPED used as a smart gaming controller in IoT-based systems, allowing players to control in-game actions such as jumping, flying, walking, hitting, and smashing by finger tapping. These optimistic results suggest that the fabricated flexible MXene/PVDF composite can possess dual properties and power the next generation of small-energy electronics and smart IoT systems.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"149 ","pages":"Pages 657-675"},"PeriodicalIF":5.9,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242008","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}
Iqra Shafiq , Gang Wu , Sadia Jamal , Saifullah Bullo , Muhammad Nadeem Akhtar , Norah Alhokbany , Ke Chen
{"title":"Influence of benzothiophene based acceptors modulation on photovoltaic properties of Trimethyl-2-selena-5-aza-pentalene-4,6-dione based chromophores through quantum chemical investigations","authors":"Iqra Shafiq , Gang Wu , Sadia Jamal , Saifullah Bullo , Muhammad Nadeem Akhtar , Norah Alhokbany , Ke Chen","doi":"10.1016/j.jiec.2025.02.046","DOIUrl":"10.1016/j.jiec.2025.02.046","url":null,"abstract":"<div><div>Non-fullerene organic compounds are widely utilized to enhance the efficiency of photovoltaic materials. Herein, we designed a series of novel selenophene based compounds (<strong>DSBD1</strong>-<strong>DSBD8</strong>) with A<sub>1</sub>–<em>π</em>–A<sub>2</sub>–<em>π</em>–A<sub>1</sub> architecture from <strong>DSBDR</strong>, which was derived from recently synthesized <strong>TPD-T-CN</strong> compound. The structural design process involved replacing the thiophene rings with selenophene units, which possess a higher degree of polarization, and altering the various terminal acceptor units of <strong>TPD-T-CN</strong>. Various analyses such as absorption properties (UV–Vis), open circuit voltage (V<sub>oc</sub>), density of states (DOS) were executed at CAMB3LYP/6-311G(d,p) functional, to analyze the optical and photovoltaic parameters of designed compounds. All the designed molecules (<strong>DSBD1</strong>-<strong>DSBD8)</strong> were observed with suitable band gaps (Δ<em>E</em> = 2.690–2.542 <em>eV</em>) with larger bathochromic shifts (λ<sub>max</sub> = 610.098–642.505 <em>nm</em> in dichloromethane) than <strong>DSBDR</strong>. The lower binding energy values (<em>E</em><sub>b</sub> = 0.658–0.612 <em>eV</em>) indicated easy charge transport between molecular orbitals with the higher exciton. Further, <em>V<sub>oc</sub></em> analysis was conducted with respect to HOMO<sub>PBDBT</sub>-LUMO<sub>ACCEPTOR</sub> and all of the derivatives exhibited a comparable voltage value with that of the reference chromophore. Therefore, it can be inferred that through molecular engineering with efficient acceptor moieties and integrating selenophene rings, the efficiency of NF-based photovoltaic materials could be improved.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"149 ","pages":"Pages 875-888"},"PeriodicalIF":5.9,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144241764","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}
Guo-Cui Mao, Jin-Peng Wang, Hui-Lin Jiang, Bao-Xia Dong, Yun-Lei Teng
{"title":"Activated LiBH4 and Ni/LiBH4-assisted CO2 hydrogenation to C1, C2 products at low temperature","authors":"Guo-Cui Mao, Jin-Peng Wang, Hui-Lin Jiang, Bao-Xia Dong, Yun-Lei Teng","doi":"10.1016/j.jiec.2025.02.041","DOIUrl":"10.1016/j.jiec.2025.02.041","url":null,"abstract":"<div><div>We found that the activated LiBH<sub>4</sub> or Ni/LiBH<sub>4</sub> can effectively assist CO<sub>2</sub> hydrogenation into C1 and C2 products at low temperature (100–300 ℃). After CO<sub>2</sub> hydrogenation over the activated LiBH<sub>4</sub> or Ni/LiBH<sub>4</sub>, CH<sub>4</sub> with approximately 100 % selectivity was formed in the gas phase products. CH<sub>3</sub>OH, HCOO<sup>−</sup>, and high-value CH<sub>3</sub>CH<sub>2</sub>OH were observed in aqueous solution of spent LiBH<sub>4</sub> or Ni/LiBH<sub>4</sub> after CO<sub>2</sub> hydrogenation. CO<sub>2</sub> conversion and CH<sub>4</sub> production are able to be further improved by doping 5–20 wt% Ni into the activated LiBH<sub>4</sub>. The LiBH<sub>4</sub> sample shows a 61.34 % CO<sub>2</sub> conversion at 200 ℃, while the 20 %Ni/LiBH<sub>4</sub> composite displays an 80.14 % CO<sub>2</sub> conversion under the same conditions. The experimental and theoretical results suggest that the synergistic effect from Ni and LiBH<sub>4</sub> results in high CO<sub>2</sub> conversion at low temperature. This new method for CO<sub>2</sub> conversion to C1, C2 products using the activated Ni/LiBH<sub>4</sub> composite may enlighten the materials design for CO<sub>2</sub> utilization.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"149 ","pages":"Pages 818-827"},"PeriodicalIF":5.9,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144241890","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}
Gopa Nandikes , Anh H. Nguyen , Sharf Ilahi Siddiqui , Seungdae Oh
{"title":"Sustainable water treatment using agricultural residue Adsorbents: Evaluating Efficacy and life cycle impacts","authors":"Gopa Nandikes , Anh H. Nguyen , Sharf Ilahi Siddiqui , Seungdae Oh","doi":"10.1016/j.jiec.2025.02.047","DOIUrl":"10.1016/j.jiec.2025.02.047","url":null,"abstract":"<div><div>This study evaluated an agricultural residue-derived adsorbent (ARA), optimized at a pyrolysis temperature of 840 °C, for its adsorption efficiency, water treatment potential and environmental sustainability. The ARA featured a large surface area (520 m<sup>2</sup>/g), well-developed micro/mesopores, and functionalized surfaces, enabling rapid and effective removal of organic water contaminants through π–π electron donor–acceptor interactions. Its adsorption performance with a Q<sub>max</sub> of 6.17 mg/g against humic acid, was comparable to that of widely used commercial activated carbons (ACs). Life cycle assessment, based on adsorption capacity as the functional unit, revealed ARA’s superior environmental profile with a 22 % less global warming potential compared to conventional coal-based AC. The ARA demonstrated carbon–neutral and eco-friendly properties across ten TRACI impact categories, which includes acidification, eutrophication, ecotoxicity, fossil fuel depletion and human health risks. Sensitivity analysis identified activation processes and electricity consumption as critical contributors to environmental impacts, emphasizing the importance of optimizing production processes and incorporating renewable energy sources. These findings highlight ARA’s potential as a sustainable, green alternative to fossil-fuel-derived adsorbents. Beyond its high adsorption performance, the material aligns with global efforts to reduce the environmental footprint of water treatment technologies, and the results of this study support a paradigm shift toward integrating operational efficiency and environmental sustainability into adsorbent design.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"149 ","pages":"Pages 889-900"},"PeriodicalIF":5.9,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144241765","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}
Nasser Zouli , Nujud Maslamani , Mohamed Hassan , Mohamed F. Cheira , Taha F. Hassanein
{"title":"Synthesis of novel mesoporous polyvinylamine functionalized with 2-Mercapto-N-methylbenzamide for mercury ions removal from industrial wastewater effluent","authors":"Nasser Zouli , Nujud Maslamani , Mohamed Hassan , Mohamed F. Cheira , Taha F. Hassanein","doi":"10.1016/j.jiec.2025.02.043","DOIUrl":"10.1016/j.jiec.2025.02.043","url":null,"abstract":"<div><div>This research introduces a groundbreaking, high-efficiency adsorbent for the remediation of mercury ion contamination in industrial wastewater effluents. A novel chelating polymer, 2-Mercapto-N-methylbenzamide-functionalized polyvinyl amine (PVAm-MMB), was synthesized via a facile acid-catalyzed condensation reaction, strategically incorporating amine, imine, and thiol functionalities to facilitate robust mercury sequestration. Rigorous structural characterization was undertaken utilizing a comprehensive suite of analytical techniques, including elemental CHNS analysis, FTIR spectroscopy, NMR spectroscopy, SEM-EDX microscopy, BET surface area analysis, GC–MS spectrometry, TGA analysis, and XPS spectroscopy, definitively confirming the desired structural attributes of the synthesized material. Subsequent adsorption studies demonstrated the exceptional performance of the mesoporous PVAm-MMB, exhibiting a significant specific surface area (S<sub>BET</sub>) of approximately 73.7 m<sup>2</sup>/g, a total pore volume (V<sub>m</sub>) of approximately 0.31 cm<sup>3</sup>/g, and an average pore width of approximately 21.4 nm. Remarkably, the PVAm-MMB achieved a maximum adsorption capacity of approximately 62.9 mg/g under optimized conditions (pH 4.5, 25 °C, 20 min contact time, 1 g/L adsorbent concentration, and 200 mg/L Hg<sup>2+</sup> initial concentration). Langmuir isotherm modeling provided a superior fit to the experimental adsorption data compared to the Freundlich model, indicating a monolayer adsorption mechanism. Furthermore, pseudo-first-order kinetics accurately described the adsorption process; the calculated value for q<sub>e,1</sub> was 49.88 mg/g, which is quite aligned with the actual value of 48.6 mg/g. Thermodynamic analyses revealed the adsorption process to be spontaneous, exothermic (ΔH = −88.07 kJ/mol), and thermodynamically favored at lower temperatures. A plausible adsorption mechanism is proposed, and importantly, the adsorbent demonstrated excellent reusability. The efficacy of the PVAm-MMB was validated through the successful treatment of real-industrial mining wastewater effluent, achieving significant removal of mercury, thereby showcasing its substantial potential for practical environmental remediation applications.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"149 ","pages":"Pages 836-848"},"PeriodicalIF":5.9,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144241761","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}
Seung-Ju Oh , Seung-Eun Choi , In Seo Park , Jin Woo Bae
{"title":"Stretchable, self-adhesive, multicolored, electrochromic devices based on crosslinked polybutyl acrylate gels for wearable display applications","authors":"Seung-Ju Oh , Seung-Eun Choi , In Seo Park , Jin Woo Bae","doi":"10.1016/j.jiec.2025.02.036","DOIUrl":"10.1016/j.jiec.2025.02.036","url":null,"abstract":"<div><div>Stretchable electrochromic devices (ECDs) adaptable to complex curved surfaces offer promising applications in wearable displays and intelligent electronic devices for encryption and camouflage. However, conventional polymer gel electrolytes used for all-in-one ECDs are unsuitable for stretchable ECDs owing to their poor stretchability and lack of adhesiveness to the electrode surface. Here, we report a stretchable, self-adhesive, multicolored ECD based on crosslinked polybutyl acrylate (PBA) gel incorporating various electrochromic viologens. The optimized PBA-based EC gel exhibits outstanding mechanical properties (220% stretchability, >27 kPa adhesion strength) and superior ionic conductivity (1.28 mS cm<sup>−1</sup>). The flexible ECDs demonstrate excellent electrochromic performance with significant transmittance changes (Δ<em>T<sub>max</sub></em> = 82.19%), good response times (<em>t<sub>c,90%</sub></em> = 36 s, <em>t<sub>b,90%</sub></em> = 38 s), and high coloration efficiency (118.1 cm<sup>2</sup> C<sup>−1</sup>) at low operating voltages (−0.9 V). By incorporating different viologens, we achieve magenta, blue, and green colors in a single device with stable operation under mechanical deformation. The integration with stretchable silver nanowire electrodes enables fully stretchable devices maintaining stable performance under 30% strain. Furthermore, we demonstrate a proof-of-concept wearable encryption display utilizing the multi-color capabilities. This work presents a significant advancement in stretchable/flexible electrochromic technology, offering potential applications in next-generation wearable displays.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"149 ","pages":"Pages 751-763"},"PeriodicalIF":5.9,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144241887","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}