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Advanced Agrochem 2023年第4期2卷 356-363页

作者： Yun Wang Wei Yang Jian Zhu Qifei Chen Na Li Suzhou Key Laboratory of Green Chemical Engineering School of Chemical and Environmental EngineeringCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou215123China Faculty of Food Science and Technology Suzhou Polytechnic Institute of AgricultureSuzhou215008China Materials Jiangsu Key Laboratory of Advanced Functional Polymer Design and ApplicationDepartment of Polymer Science and EngineeringCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou215123China China Shenhua Coal to Liquid and Chemical Co.Ltd. Beijing100011China

Se-chitosan with a high Se content of 139 mg/g was successfully synthesized using the glacial acetic acid-sodium selenite(HAc-Na2SeO3)*** chemical structure of Se-chitosan was characterized by FTIR,XRD,TGA,UV–vis and 13C NMR,confirming that selenite acid was introduced into chitosan via the esterification reaction of the hydroxyl group at C6 and the electrostatic interaction of the amino group at C2 of *** hydrogels were designed as an efficient carrier of Se-chitosan for Se-enriched cultivation of *** hydrogels exhibited a porous structure,which is beneficial for Se diffusion in *** growth indexes of sprouts grown in Agar/Se-chitosan composite hydrogels with different Se concentrations,including plant weight,plant height and Se content,were *** results showed that in the Se-enriched cultivation of sprouts,Se-chitosan possessed an excellent Se enrichment *** the Se concentration in Agar/Se-chitosan composite hydrogels increases from 0 to 1600μg/L,the Se content of the sprouts will also increase from 0.92 mg/kg to 6.79 mg/kg ***,it is necessary to control the amount of Se-chitosan added to the hydrogels;otherwise,the growth of sprouts will be *** research provided a simple and effective method for the fabrication of Secontaining hydrogels for Se-enriched cultivation of sprouts.

关键词： Hydrogel Se-chitosan Agarose hydrogel Sprouts Se enrichment

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Ultra-transparent nanostructured coatings via flow-induced one-step coassembly

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Nano Materials science 2022年第2期4卷 97-103页

作者： Jingjing Liu Sonia E.Chavez Hao Ding Maria M.Farooqui Zaili Hou Sharon Lin Thomas D.D'Auria Julia M.Kennedy Anna Marie LaChance Luyi Sun Polymer Program Institute of Materials ScienceUniversity of ConnecticutStorrsConnecticut06269United States Department of Chemical&Biomolecular Engineering University of ConnecticutStorrsConnecticut06269United States Department of Biomedical Engineering University of ConnecticutStorrsConnecticut06269United States

Polyvinyl alcohol(PVA)/laponite(LP)nanocomposite coatings were fabricated via a facile one-step coassembly *** formed nanocoatings contain a high concentration of LP nanosheets,which can be well aligned along the substrate surface during the coassembly *** to the highly orientated structure,the flexible nanocoatings exhibit ultra-high transparency and superior mechanical properties,and can also act as excellent gas *** nanocoatings can be exceptional candidates for a variety of applications,such as food packaging.

关键词： Nanocoating Coassembly Polyvinyl alcohol Laponite

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Insightful analysis of physical properties, kinetics, absorption capacity, and regeneration heat duty of monoethanolamine and N-methyl-4-piperidinol blended solvent in post-combustion carbon capture

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environmental science and Pollution Research 2024年第40期31卷 52868-52885页

作者： Apaiyakul, Rattanaporn Khuenkaew, Wachiramon Sirirathomsud, Ornicha Boonprasop, Sutthichai Liu, Heilei Gao, Hongxia Liang, Zhiwu Tontiwachwuthikul, Paitoon Sema, Teerawat Petrochemistry and Polymer Science Program Faculty of Science Chulalongkorn University Pathumwan Bangkok10330 Thailand Department of Chemical Engineering Faculty of Engineering Mahidol University Nakhon Pathom73170 Thailand Department of Biotechnology Faculty of Science Mahidol University Bangkok10400 Thailand School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing100081 China Provincial Hunan Key Laboratory for Cost-Effective Utilization of Fossil Fuel Aimed at Reducing CO₂ Emissions College of Chemistry and Chemical Engineering Hunan University Changsha410082 China Faculty of Engineering and Applied Science University of Regina ReginaSKS4S 0A2 Canada Department of Chemical Technology Faculty of Science Chulalongkorn University Pathumwan Bangkok10330 Thailand

In this study, the high potential tertiary N-methyl-4-piperidinol or MPDL (0.25–1.00 M) was blended with 5 M monoethanolamine (MEA) to formulate 5.25–6.00 M MEA-MPDL solvent and compare with the benchmark 5 M MEA. It was found that the density and the Henry’s constant slightly decreased, while the viscosity increased as the MPDL concentration in the blend increased. Even though the equilibrium CO2-loaded viscosity considerably increased (by 34.3–40.2%) as the MPDL content increased, it was still in a great operating region of less than 10 mPa.s. Experimental overall reaction kinetics constant (kov) was well corresponding with the zwitterion mechanism of MEA and the base-catalyze hydration mechanism of MPDL based absorption kinetics model, with %AAD of 0.56%. Interestingly, an addition of MPDL into 5 M MEA slightly enhanced kov (1.2–3.3% increment) and considerably favored absorption capacity (13–31% elevation), and regeneration heat duty (28–47% reduction), respecting 5 M MEA. The proposed strategic blending can maintain the overall solvent reactivity at the same level of the benchmark, while obviously increase the absorption capacity and largely reduce the regeneration heat duty. This highly favors a solvent upgrading for the existing 5 M MEA based CO2 capture plant. According to the recent data, 5 M MEA + 1.00 M MPDL was suggested. Since the blend was formulated at high concentration, its corrosiveness should also be considered. Graphical abstract: (Figure presented.) © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.

关键词： Carbon capture and utilization

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Effect of Mixing Strategy on the Structure-Properties of the PLA/PBAT Blends Incorporated with CNC

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Journal of Renewable Materials 2022年第1期10卷 149-164页

作者： Deniz Sema Sarul Dogan Arslan Emre Vatansever Yusuf Kahraman Ali Durmus Reza Salehiyan Mohammadreza Nofar Polymer Science and Technology Program Institute of Science and TechnologyIstanbul Technical UniversityIstanbul34469Turkey Metallurgical&Materials Engineering Department Faculty of Chemical and Metallurgical EngineeringIstanbul Technical UniversityIstanbul34469Turkey Department of Chemical Engineering Faculty of EngineeringIstanbul University-CerrahpasaIstanbul34320Turkey Department of Materials Research and Technology Luxembourg Institute of Science and TechnologyEsch-sur-Alzette4362Luxembourg

Polylactide(PLA)/poly(butylene adipate-co-terephthalate)(PBAT)blend nanocomposites including 3 wt%of cel-lulose nanocrystals(CNCs)were prepared by melt compounding method in a twin-screw extruder and an inter-nal *** nanocomposites were formulated by diluting three different masterbatches prepared by solution casting method that contained 7 wt%of *** masterbatches were:(m1)PLA/PBAT/CNC masterbatch;(m2)PLA/CNC masterbatch;and(m3)PBAT/CNC *** were to explore how different prepara-tion methods affect the dispersion and localization of CNC and hence the properties of PLA/PBAT/CNC blend *** electron microscopy(SEM)was used to study the structural changes of the *** properties of PLA/PBAT blends and PLA/PBAT/CNC blend nanocomposites were also *** the samples prepared by internal mixer,the rheological behavior of blend nanocomposite prepared through premixing of CNC particles with PLA showed a transition from liquid-like to a gel-like *** to the rheological results and differential scanning calorimetry(DSC)analysis,it was found that the CNC overall enhanced the viscoelastic properties of blends and improved the PLA crystallization,*** mechanical analysis(DMA)illustrated that the incorporation of CNC also enhanced the elastic modulus of PLA/PBAT blends specifically above the glass transition temperature of *** expected improvements in mechanical properties did not occur due to the possible existence of residual solvent in the blends.

关键词： Polylactide poly(butylene adipate-co-terephthalate) cellulose nanocrystals blend nanocomposite morphology rheology

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Molecular simulation-guided and physics-informed mechanistic modeling of multifunctional polymers

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Acta Mechanica Sinica 2021年第5期37卷 725-745,I0002页

作者： Guang Chen Weikang Xian Qiming Wang Ying Li Department of Mechanical Engineering University of ConnecticutStorrsCT 06269USA Sonny Astani Department of Civil and Environmental Engineering University of Southern CaliforniaLos AngelesCA 90089USA Department of Mechanical Engineering and Polymer Program Institute of Materials ScienceUniversity of ConnecticutStorrsCT 06269USA

polymeric materials have a broad range of mechanical and physical *** have been widely used in material science,biomedical engineering,chemical engineering,and mechanical *** introduction of active elements into the soft matrix of polymers has enabled much more diversified functionalities of polymeric materials,such as self-healing,electroactive,magnetosensitive,pH-responsive,and many *** further enable applications of these multifunctional polymers,a mechanistic modeling method is required and of great significance,as it can provide links between materials’micro/nano-structures and their macroscopic mechanical *** this goal,molecular simulation plays an important role in understanding the deformation and evolution of polymer networks under external loads and *** molecular insights provide physical guidance in the formulation of mechanistic-based continuum models for multifunctional *** this perspective,we present a molecular simulation-guided and physics-informed modeling framework for polymeric ***,the physical theory for polymer chains and their networks is briefly *** serves as the foundation for mechanistic-models of polymers,linking their chemistry,physics,and mechanics ***,the deformation of the polymer network is used to derive the strain energy density ***,the corresponding continuum models can capture the intrinsic deformation mechanisms of polymer *** then highlight several representative examples across multiphysics coupling problems to describe in detail for this proposed *** but not least,we discuss potential challenges and opportunities in the modeling of multifunctional polymers for future research directions.

关键词： Molecular simulation Multiphysics modeling Multiscale modeling Multifunctional polymers Soft Matter

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PFAS removal via adsorption: A synergistic review on advances of experimental and computational approaches

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Chemosphere 2025年 377卷 144323页

作者： Abeysinghe, Hansini Ma, Xingmao Tsige, Mesfin School of Polymer Science and Polymer Engineering The University of Akron AkronOH44325-3909 United States Zachry Department of Civil and Environmental Engineering Texas A&M University College StationTX77843 United States

Per- and polyfluoroalkyl substances (PFAS), commonly known as "forever chemicals", have become a major focus of current research due to their toxicity and persistence in the environment. These synthetic compounds are notoriously difficult to degrade, accumulating in water systems and posing long-term health and environmental risks. Adsorption is one of the most investigated technologies for PFAS removal. This review comprehensively reviewed the PFAS adsorption process, focusing not only on the adsorption itself, but also on the behavior of PFAS in the aquatic environment prior to adsorption because these behaviors directly affect PFAS adsorption. Significantly, this review summarized in detail the advances made in PFAS adsorption from the computational approach and emphasized the importance of integrated experimental and computational studies in gaining molecular-level understanding on the adsorption mechanisms of PFAS. Toward the end, the review identified several critical research gaps and suggested key interdisciplinary research needs for further advancing our understanding on PFAS adsorption. © 2025 Elsevier Ltd

关键词： Adsorption Computational Density functional theory (DFT) Molecular simulation PFAS

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Ethanol steam reforming over Ni/ZSM-5 nanosheet for hydrogen production

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Chinese Journal of Chemical engineering 2024年第3期67卷 247-256页

作者： Porapak Suriya Shanshan Xu Shengzhe Ding Sarayute Chansai Yilai Jiao Joseph Hurd Daniel Lee Yuxin Zhang Christopher Hardacre Prasert Reubroycharoen Xiaolei Fan Department of Chemical Engineering School of EngineeringThe University of ManchesterManchester M139PLUnited Kingdom Program of Petrochemistry and Polymer Science Faculty of ScienceChulalongkorn UniversityBangkok10330Thailand Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Liaoning Academy of Materials Shenyang 110167China Center of Excellence in Catalysis for Bioenergy and Renewable Chemicals(CBRC) andDepartment of Chemical TechnologyFaculty of ScienceChulalongkorn UniversityBangkok 10330Thailand Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute University of Nottingham Ningbo ChinaNingbo315100China

Compared to reforming reactions using hydrocarbons,ethanol steam reforming(ESR)is a sustainable alternative for hydrogen(H_(2))production since ethanol can be produced sustainably using *** work explores the catalyst design strategies for preparing the Ni supported on ZSM-5 zeolite catalysts to promote ***,two-dimensional ZSM-5 nanosheet and conventional ZSM-5 crystal were used as the catalyst carriers and two synthesis strategies,i.e.,in situ encapsulation and wet impregnation method,were employed to prepare the *** on the comparative characterization of the catalysts and comparative catalytic assessments,it was found that the combination of the in situ encapsulation synthesis and the ZSM-5 nanosheet carrier was the effective strategy to develop catalysts for promoting H_(2) production via ESR due to the improved mass transfer(through the 2-D structure of ZSM-5 nanosheet)and formation of confined small Ni nanoparticles(resulted via the in situ encapsulation synthesis).In addition,the resulting ZSM-5 nanosheet supported Ni catalyst also showed high Ni dispersion and high accessibility to Ni sites by the reactants,being able to improve the activity and stability of catalysts and suppress metal sintering and coking during ESR at high reaction ***,the Ni supported on ZSM-5 nanosheet catalyst prepared by encapsulation showed the stable performance with~88% ethanol conversion and~65% H_(2) yield achieved during a 48-h longevity test at 550-C.

关键词： ZSM-5 nanosheet In situ encapsulation Ni catalyst Ethanol steam reforming Hydrogen production

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A risk-based evaluation of safe distance for a hydrogen refueling station

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Process Safety Progress 2024年第3期43卷 478-493页

作者： Bai, Mingqi Du, Xin Li, Jianguo Shu, Chi-Min Feng, Wei Li, Bing Liu, Yi Qingdao China Qingdao China Qingdao China Department of Safety Health and Environmental Engineering National Yunlin University of Science and Technology Douliu Taiwan State Key Laboratory of Fluorinated Functional Membrane Materials Zibo China Shandong Dongyue Polymer Material Co. Ltd Zibo China National Engineering Research Center of Coal Gasification and Coal-Based Advanced Materials Zoucheng China

To ensure the safety of hydrogen refueling stations (HRSs) and protective targets in the surrounding area, this paper has introduced a risk-based safe distance assessment method for a 35MP HRSs, emphasizing the impact of the station's surrounding area. The findings indicate that the safe distance is determined by vapor cloud explosion (VCE) accident scenarios arising from pipeline leaks (compressor-hydrogen storage tanks) at 125 m. Therefore, a crucial focus should be placed on safeguarding and maintaining hydrogen pipelines. Furthermore, based on societal risk, the requirement of a 358-m safe distance specifies that the population gathering within this range should be © 2024 American Institute of Chemical Engineers.

关键词： Risk assessment

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Smart Soft Materials with Multiscale Architecture and Dynamic Surface Topographies

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Accounts of Materials Research 2022年第11期3卷 1115-1126页

作者： Songshan Zeng Andrew T.Smith Kuangyu Shen Luyi Sun Polymer Program Institute of Materials Science and Department of Chemical&Biomolecular EngineeringUniversity of ConnecticutStorrsConnecticut 06269United StatesPresent Address:Macao Institute of Materials Science and Engineering(MIMSE)Zhuhai MUST Science and Technology Research InstituteFaculty of Innovation EngineeringMacao University of Science and TechnologyTaipa999078MacaoChina Polymer Program Institute of Materials Science and Department of Chemical&Biomolecular EngineeringUniversity of ConnecticutStorrsConnecticut 06269United States

CONSPECTUS:Smart soft materials have one or more characteristics that can be significantly altered in convertible fashions by external stimuli,such as light,moisture,mechanical force,temperature,electric/magnetic fields,pH,and so *** materials can lead to widespread application in multifunctional smart ***,various smart soft materials have been developed under the inspiration of the intriguing multiscale structures,adaptive mechanisms,and dynamic responses of natural life,with an aim to further design advanced material systems with novel,intriguing,and unprecedented properties.

关键词： Smart properties. Dynamic

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Mesoporous Nanofibers from Extended Electrospinning Technique

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Advanced Fiber Materials 2024年第3期6卷 658-685页

作者： Pengpeng Qiu Richeng Jin Younggyu Son Anqi Ju Wan Jiang Lianjun Wang Wei Luo State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Institute of Functional MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai 201620China Department of Environmental Engineering Department of Energy Engineering ConvergenceKumoh National Institute of TechnologyGumi 39177Republic of Korea

One-dimensional(1D)mesoporous nanofibers(NFs)have recently attracted tremendous interest in different fields,in virtue of their mesoporous structure and 1D ***,conventional electrospinning,as a versatile approach for producing 1D nanostructures,can only fabricate solid NFs without pores or with a microporous *** this review,we focus on the extensions of the electrospinning technique to create 1D mesoporous fibrous structures,which can be categorized into:(i)foaming-assisted,(ii)phase separation-induced,(iii)soft-templated,and(iv)monomicelle-directed *** focus is on the synthesis strategies of 1D mesoporous NFs,and their underlying mechanisms,with looking into the control over pore sizes,pore structures,and ***,the structure-related performances of mesoporous NFs in photocatalysis,sensing,and energy-related fields are ***,the potential challenges for the future development of 1D mesoporous fibers are examined from the viewpoint of their synthetic strategies and applications.

关键词： Nanofibers Electrospinning Mesoporous Soft-templated Monomicelles

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