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Photocatalytic bio-inspired PDA-RGO/g-C3N4 nanocomposite incorporated PES membrane for removal of environmental antibiotic pollutants

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Journal of chemical Technology and Biotechnology 2024年第6期99卷 1401-1413页

作者： Govardhanan, B. GokulaKrishnan, S.A. Arthanareeswaran, G. Ashok, M. Chen, Yong-Song Taweepreda, W. Membrane Research Laboratory Department of Chemical Engineering National Institute of Technology Tiruchirappalli Tiruchirappalli India New Generation Materials lab Department of Physics National Institute of Technology Tiruchirappalli Tiruchirappalli India Department of Mechanical Engineering and Advanced Institute of Manufacturing with High-tech Innovations National Chung Cheng University Chiayi County Taiwan Polymer Science Program Division of Physical Science Faculty of Science Prince of Songkla University Hat-Yai Thailand

BACKGROUND: Membrane technology makes it more suitable for the treatment of environmental polluted organic wastewater. Membrane fouling is one of the major concerns in commercial membranes. To overcome this issue, photocatalytic nanomaterials are embedded into the membrane to enhance its surface nature and reusability. In this investigation, polydopamine functionalized graphene oxide (PDA-RGO), graphite carbon nitride (g-C3N4) and PDA-RGO/g-C3N4 nanomaterials were incorporated within polyethersulfone membrane fabricated via a phase inversion technique. These as-prepared membranes’ functional groups and surface morphologies were investigated by Fourier transform infrared (FTIR) spectroscopy, atomic force microscopy (AFM) and field emission electron microscopy (FESEM). These as-prepared membranes were investigated for photocatalytic activity under visible-light-driven photodegradation by environmental pollutants such as Rhodamine B (RhB) and Norfloxacin (NOR). RESULTS: Compared with pristine PES membrane, the PDA-RGO/g-C3N4-PES nanocomposite membrane showed higher photocatalytic activity for Rhodamine B 94.6% and Norfloxacin 96.8%, also reached greater water flux 189 L m−2 h−1. Therefore, the bio-inspired nanocomposite-modified PDA-RGO/g-C3N4 photocatalytic membrane could have huge potential in processing environmentally polluted water. CONCLUSIONS: PDA-RGO/g-C3N4-PES nanocomposite membrane improved the membrane hydrophilicity, water flow, anti-fouling performance, rejection studies and photocatalytic degradation than the pristine membrane. The synergistic result of PDA-RGO and g-C3N4 exhibits better photodegradation efficiency of the membrane towards environmental pollutants. © 2024 Society of chemical Industry (SCI). © 2024 Society of chemical Industry (SCI).

关键词： Nanocomposites

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Initial Exploration and Understanding of Parameters for Successful Enterprise Architecture Implementation 11

Initial Exploration and Understanding of Parameters for Succ...

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11th International Conference on ICT for Smart Society, ICISS 2024

作者： Khairina, Dyna Marisa Purwanto, Purwanto Nugraheni, Dinar Mutiara Kusumo School of Postgraduate Studies Universitas Diponegoro Program in Information Systems Semarang Indonesia Universitas Diponegoro Faculty of Engineering Department of Chemical Engineering Semarang Indonesia Universitas Diponegoro Faculty of Science and Mathematics Department of Informatics Semarang Indonesia

ISBN: (纸本)9798350389654

This study provides an initial exploration and further understanding of the factors that are parameters in evaluating the success of Enterprise Architecture (EA) implementation. An evaluation process is needed to ensure that the EA project implementation provides effectiveness, efficiency, and feasibility of the EA information system as well as assessing previous project experience to avoid future EA project risks. The research aims to present a Systematic Literature Review based on the stages of identification, screening, eligibility, and inclusion so that 14 main articles are selected for review with strong actual relevance. The study results provide insights and references that can be used to further explore key factors in evaluating the success of EA implementation in the future. It was found that there were ten factors that most influenced the evaluation of the success of EA implementation and it was concluded that two potential factors were the most influential and required further exploration in evaluating the success of EA implementation which could be applied in various sectors/dimensions. This study contributes as an initial reference for overcoming problems in investigating and exploring the factors that influence the success of EA implementation as an effort to assess the success of achieving future organizational goals. © 2024 IEEE.

关键词： Enterprise Architecture Parameters Success Factors Systematic Literature Review

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Reactant enrichment in hollow void of Pt NPs@MnOx nanoreactors for boosting hydrogenation performance

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National science Review 2023年第10期10卷 114-122页

作者： Yanfu Ma Liwei Wang Wantong Zhao Tianyi Liu Haitao Li Wenhao Luo Qike Jiang Wei Liu Qihua Yang Jun Huang Riguang Zhang Jian Liu G.Q.Max Lu Can Li State Key Laboratory of Catalysis Dalian Institute of Chemical Physics (DICP)Chinese Academy of Sciences Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences State Key Laboratory of Clean and Efficient Coal Utilization Taiyuan University of Technology DICP-Surrey Joint Centre for Future Materials Department of Chemical and Process EngineeringUniversity of Surrey CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences School of Chemistry and Chemical Engineering Inner Mongolia University Division of Energy Research Resources Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academyof Sciences Key Laboratory of the Ministry of Education for Advanced Catalysis Materials Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces Institute of Physical ChemistryZhejiang Normal University Laboratory for Catalysis Engineering School of Chemical and Biomolecular Engineering Sydney Nano Institute The University of Sydney University of Surrey

In confined mesoscopic spaces,the unraveling of a catalytic mechanism with complex mass transfer and adsorption processes such as reactant enrichment is a great *** this study,a hollow nanoarchitecture of MnOx-encapsulated Pt nanoparticles was designed as a nanoreactor to investigate the reactant enrichment in a mesoscopic hollow *** employing advanced characterization techniques,we found that the reactant-enrichment behavior is derived from directional diffusion of the reactant driven through the local concentration gradient and this increased the amount of *** experimental results with density functional theory calculations,the superior cinnamyl alcohol（COL）selectivity originates from the selective adsorption of cinnamaldehyde（CAL） and the rapid formation and desorption of COL in the *** superb performance of 95% CAL conversion and 95% COL selectivity is obtained at only 0.5 MPa H2and 40 *** findings showcase that a rationally designed nanoreactor co uld boost catalytic performance in chemoselective hydrogenation,which can be of great aid and potential in various application scenarios.

关键词： reactant enrichment nanoreactor effect selective hydrogenation hollow nanostructure mesoporous materials

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Slow relaxation dynamics of superparamagnetic colloidal beads in time-varying fields

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Physical Review Materials 2024年第10期8卷 105601页

作者： Lucas H. P. Cunha Aldo Spatafora-Salazar Dana M. Lobmeyer Kedar Joshi Fred C. MacKintosh Sibani Lisa Biswal Department of Chemical and Biomolecular Engineering Center for Theoretical Biological Physics Institute for Soft Matter Synthesis and Metrology School of Chemical and Materials Science Department of Physics and Astronomy Department of Chemistry

Superparamagnetic colloidal beads present fascinating assembly dynamics and propulsion in time-varying magnetic fields. However, little is known about the mechanisms governing their magnetization dynamics. We measure the beads' magnetic relaxation time from the effective interaction potential in dimers under rotating magnetic fields. Remarkably, our results indicate the presence of magnetic relaxation mechanisms much slower than that of the constituent magnetic elements, resembling a feature of glassy systems. These findings gain further insight into the magnetization and dynamics of composite colloids in complex magnetic fields.

关键词： Magnetic susceptibility Magnetism Magnetization dynamics Magnetic nanoparticles Optical microscopy Stochastic analysis

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Advancements in Geopolymer Concrete for Marine Infrastructure: An Optimization of Performance Considering Workability, Compressive Strength, Capillary Water Absorption, Porosity, and Chloride Migration

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Iranian Journal of science and Technology - Transactions of Civil engineering 2024年 1-14页

作者： Shahedan, Noor Fifinatasha Hadibarata, Tony Jusoh, Muhammad Noor Hazwan Isia, Ismallianto Bouaissi, Aissa Juwono, Filbert Hilman Nawawi, Natasha Ahmad Kusumaningrum, Hermin Pancasakti Muslim, Abrar Hidayat, Topik Environment Engineering Program Curtin University Malaysia Miri CDT 250 Malaysia School of Engineering University of Plymouth Plymouth PL4 8AA United Kingdom Department of Electrical and Electronic Engineering Xi’an Jiaotong – Liverpool University Suzhou China School of Mechanical Engineering College of Engineering Universiti Teknologi MARA Shah Alam 40450 Malaysia Biotechnology Study Program Department of Biology Faculty of Science and Mathematics Universitas Diponegoro Semarang Indonesia Department of Chemical Engineering Faculty of Engineering Universitas Syiah Kuala Banda Aceh Indonesia Biology Study Program Faculty of Mathematics and Science Education Universitas Pendidikan Indonesia Bandung Indonesia

This research investigates the effectiveness of geopolymer concrete incorporating fly ash in environments rich in chlorides;in contrast to conventional Portland cement concrete (OPC). The study emphasizes essential characteristics such as workability, mechanical strength, capillary water absorption, open porosity, and chloride migration. The experiments demonstrated that geopolymer concrete exhibits a 30% enhancement in slump values, reflecting improved workability, and its compressive strength rose by 14.90–23.94% when compared with OPC. A significant reduction in binder content led to a notable decrease in capillary water absorption, highlighting a positive impact on long-term durability. With time, geopolymer concrete showed a reduction in open porosity and chloride migration coefficient, indicating better resistance to chloride penetration in marine settings. Although these outcomes underscore the potential of geopolymer concrete to improve structural durability, especially in marine infrastructure, additional optimization is required to tackle its relatively higher capillary water absorption and chloride migration during the initial stages. These results contribute to the ongoing investigation of sustainable building materials, offering valuable insights into geopolymer concrete’s ability to endure severe chloride exposure and serve as a durable solution for corrosion management in marine infrastructure. © The Author(s), under exclusive licence to Shiraz University 2024.

关键词： Durability Geopolymer concrete Marine environments Mix design Sustainable construction

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Reachability Analysis of Nonlinear Discrete-Time Systems Using Polyhedral Relaxations and Constrained Zonotopes 63

Reachability Analysis of Nonlinear Discrete-Time Systems Usi...

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63rd IEEE Conference on Decision and Control, CDC 2024

作者： Rego, Brenner S. Raffo, Guilherme V. Terra, Marco H. Scott, Joseph K. Georgia Institute of Technology Department of Chemical and Biomolecular Engineering 311 Ferst Dr. AtlantaGA30318 United States University of Säo Paulo Department of Electrical and Computer Engineering SP Säo Carlos13566-590 Brazil Federal University of Minas Gerais Department of Electronics Engineering and the Graduate Program in Electrical Engineering MG Belo Horizonte31270-901 Brazil

ISBN: (纸本)9798350316339

This paper presents a novel algorithm for reachability analysis of nonlinear discrete-time systems. The proposed method combines constrained zonotopes (CZs) with polyhedral relaxations of factorable representations of nonlinear functions to propagate CZs through nonlinear functions, which is normally done using conservative linearization techniques. The new propagation method provides better approximations than those resulting from linearization procedures, leading to significant improvements in the computation of reachable sets in comparison to other CZ methods from the literature. Numerical examples highlight the advantages of the proposed algorithm. © 2024 IEEE.

关键词： Numerical methods

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Challenges and Opportunities in Preserving Key Structural Features of 3D-Printed Metal/Covalent Organic Framework

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Nano-Micro Letters 2024年第8期16卷 362-381页

作者： Ximeng Liu Dan Zhao John Wang Department of Materials Science and Engineering National University of SingaporeSingapore 117574Singapore Department of Chemical and Biomolecular Engineering National University of SingaporeSingapore 117585Singapore National University of Singapore(Chongqing)Research Institute Chongqing 401123People’s Republic of China

Metal-organic framework(MOF)and covalent organic framework(COF)are a huge group of advanced porous materials exhibiting attractive and tunable microstructural features,such as large surface area,tunable pore size,and functional surfaces,which have significant values in various application *** emerging 3D printing technology further provides MOF and COFs(M/COFs)with higher designability of their macrostructure and demonstrates large achievements in their performance by shaping them into advanced 3D ***,the currently available 3D printing M/COFs strategy faces a major challenge of severe destruction of M/COFs’microstructural features,both during and after 3D *** is envisioned that preserving the microstructure of M/COFs in the 3D-printed monolith will bring a great improvement to the related *** this overview,the 3D-printed M/COFs are categorized into M/COF-mixed monoliths and M/COF-covered *** differences in the properties,applications,and current research states are *** up-to-date advancements in paste/scaffold composition and printing/covering methods to preserve the superior M/COF microstructure during 3D printing are further discussed for the two types of 3D-printed M/*** the analysis of the current states of 3D-printed M/COFs,the expected future research direction to achieve a highly preserved microstructure in the 3D monolith is proposed.

关键词： Metal-organic frameworks Covalent organic frameworks 3D printing Microstructure Monolith

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Complex Reaction Mechanisms of Electrolyte Decomposition at Large-Scale Ni-Rich Li-Ion Battery Cells Including Electrode Crosstalk Effect

SSRN

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SSRN 2024年

作者： Prempluem, Surat Sangsanit, Thitiphum Santiyuk, Kanruthai Homlamai, Kan Tejangkura, Worapol Songthan, Ronnachai Anansuksawat, Nichakarn Sawangphruk, Montree Department of Chemical and Biomolecular Engineering School of Energy Science and Engineering Vidyasirimedhi Institute of Science and Technology Rayong21210 Thailand

Ni-rich cathodes are essential for the advancement of high-energy lithium-ion batteries but encounter significant challenges at elevated voltages, including oxygen liberation and enhanced surface reactivity, which precipitate electrolyte decomposition. This study explores the intricate reaction mechanisms of electrolyte decomposition linked to the pronounced release of oxygen from the cathode lattice in large-scale 18650 cylindrical cells employing Ni-rich LiNi0.90Mn0.05Co0.05O2(NMC90)//graphite configurations, focusing on electrode crosstalk effects at high voltages. Notably, acetals such as methoxy methanol (49.93%) and methane diol (50.07%) were identified at 4.7 V, with their presence escalating at 4.9 V. Formaldehyde, present at 7.21%, along with methanol (22.77%), methane diol (36.35%), and methoxy methanol (33.67%), begins to manifest at 4.9 V. The dissolution of transition metals was analyzed using Inductively Coupled Plasma Atomic Emission Spectrometry, and changes in capacitance were assessed through electrochemical impedance spectroscopy, further validating the link between these decomposition products and cathode failure associated with oxygen release. These insights reveal the complex relationship between electrolyte decomposition and cathode degradation due to oxygen release, highlighting a critical failure mechanism in large-scale cylindrical lithium-ion batteries. © 2024, The Authors. All rights reserved.

关键词： Lithium-ion batteries

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Investigation of Complex Electrolyte Decomposition at Large-Scale 18650 Cylindrical Supercapacitor Cells

SSRN

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SSRN 2024年

作者： Phojaroen, Jiraporn Wuamprakhon, Phatsawit Sangsanit, Thitiphum Santiyuk, Kanruthai Songthan, Ronnachai Tejangkura, Worapol Sawangphruk, Montree Department of Chemical and Biomolecular Engineering School of Energy Science and Engineering Vidyasirimedhi Institute of Science and Technology Rayong21210 Thailand

This study elucidates the role of acetamide as a pivotal indicator for electrolyte decomposition in acrylonitrile-based supercapacitors, expanding the understanding of degradation mechanisms within these energy storage devices. Acetamide formation, resulting from the hydrolysis of acetonitrile under elevated voltages, serves as a primary marker for electrolyte instability. Further investigations reveal the subsequent transformation of acetamide into N-ethyl acetamide and trimethylsilyl acetamide, highlighting the complex chemical interactions between the electrolyte and electrode materials, as well as the influence of silicon carbide impurities present in commercial activated carbon, which is the state-of-the-art material of practical supercapacitors. These findings underscore the detrimental impact of such decomposition products on supercapacitor performance, notably diminishing electrode porosity and surface area, thereby reducing capacitance and elevating internal resistance. The research emphasizes the critical need for stringent control over electrolyte composition and the purification of electrode materials to mitigate degradation pathways, thereby enhancing the reliability and efficiency of acrylonitrile-based supercapacitors. © 2024, The Authors. All rights reserved.

关键词： Supercapacitor

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Cell driven elastomeric particle packing in composite bioinks for engineering and implantation of stable 3D printed structures

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Bioactive Materials 2025年第2期44卷 411-427页

作者： Shira Landau Jennifer Kieda Ramak Khosravi Sargol Okhovatian Kaitlyn Ramsay Chuan Liu Amid Shakeri Yimu Zhao Karen Shen Orit Bar-Am Shulamit Levenberg Scott Tsai Milica Radisic University of Toronto Institute of Biomedical EngineeringTorontoONCanada University Health Network Toronto General Hospital Research InstituteTorontoONCanada University of Toronto Terrence Donnelly Centre for Cellular&Biomolecular ResearchTorontoONCanada Division of Cardiovascular and Thoracic Surgery Department of SurgeryDuke University Medical CenterDurhamNCUnited States Toronto Metropolitan University Department of MechanicalIndustrialand Mechatronics EngineeringTorontoONCanada Toronto Metropolitan University and Unity Health Toronto Institute for Biomedical EngineeringScience and Technology(iBEST)TorontoONCanada Faculty of Biomedical Engineering TechnionHaifaILIsrael University of Toronto Department of Chemical Engineering and Applied ChemistryTorontoONCanada Acceleration Consortium University of TorontoTorontoONCanada

Geometric and structural integrity often deteriorate in 3D printed cell-laden constructs over time due to cellular compaction and hydrogel *** study introduces a new approach that synergizes the advantages of cell compatibility of biological hydrogels and mechanical stability of elastomeric polymers for structure fidelity maintenance upon stereolithography and extrusion 3D *** this advance is the composite bioink,formulated by integrating elastomeric microparticles from poly(octamethylene maleate(anhydride)citrate)(POMaC)into biologically derived hydrogels(fibrin,gelatin methacryloyl(GelMA),and alginate).The composite bioink enhanced the elasticity and plasticity of the 3D printed constructs,effectively mitigating tissue compaction and *** exhibited a low shear modulus and a rapid crosslinking time,along with a high ultimate compressive strength and resistance to deformation from cellular forces and physical handling;this was attributed to packing and stress dissipation of elastomeric particles,which was confirmed via mathematical *** functional assembly and stability of human iPSC-derived cardiac tissues and primary vasculature proved the utility of the composite bioink in tissue *** vivo implantation studies revealed that constructs containing POMaC particles exhibited improved resilience against host tissue stress,enhanced angiogenesis,and infiltration of pro-reparative macrophages.

关键词： Elastomer 3D printing Cardiac Vascular Granular material Particle Bioink Polymer Droplet microfluidics

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