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Open Ceramics 2025年 23卷

作者： Oyku Icin Damla Zeydanlı Mattia Biesuz Gian Domenico Sorarù Cekdar Vakifahmetoglu Department of Materials Science and Engineering İzmir Institute of Technology İzmir 35430 Turkey Vocational School of Health Services Laboratory Technology Istanbul Gelisim University Istanbul 34310 Turkiye Department of Industrial Engineering University of Trento Via Sommarive 9 Trento 38123 Italy Faculty III Process Sciences Institute of Material Science and Technology Chair of Advanced Ceramic Materials Technische Universität Berlin Berlin 10623 Germany

Polymer-derived ceramics (PDCs), obtained from preceramic polymers, have emerged as promising materials for environmental applications due to their high thermal and chemical stability, tunable nano-microstrucure and porosity, and versatile surface functionalities. This review focuses on the recent advances in porous PDCs and their use in key environmental fields such as sorption, filtration, and catalysis. A comparative analysis of precursor chemistry, synthesis strategies, and resulting structural properties is presented, emphasizing how these factors influence performance in environmental remediation tasks. By consolidating findings across specific application areas, the work aims to clarify the functional potential of PDCs and identify current research gaps and opportunities for future development in environmental material science.

关键词： Polymer-derived ceramics Preceramic polymers Environmental applications Ecology Sustainability AC activated carbon AF acid funcsin Al 2 O 3 alumina APTE 3-aminopropyltriethoxysilane Ar argon BET Brunauer-Emmett-Teller Bi 2 WO 6 bismuth tungstate CeO 2 ceria CF 4 carbon tetrafluoride CH 4 methane CH 3 OH methanol CH 3 NH 2 methylamine C 2 H 4 ethylene C 2 H 6 O ethanol C 3 H 8 propane C 3 H 6 O acetone C 6 H 6 benzene CO carbon monoxide CO 2 carbon dioxide CV crystal violet DPF diesel particulate filters DRM dry reforming of methane DVB divinylbenzene D 4 Vi tetramethyltetravinylcycletetra GO graphene oxide HC hydrocarbon HEPA high-efficiency particulate air HER hydrogen evolution reaction IPA isopropyl alcohol LMH liters per square meter per hour MB methylene blue MOF metal-organic framework N 2 nitrogen NA not available PAA polyacrylic acid PAN polyacrylonitrile PC polycarbonate PCS polycarbosilane PDC polymer derived ceramic PDMS polydimethylsiloxane PE polyethylene PEN polyethylene naphthalate PET polyethylene terephthalate PHMS polyhydrodimethylsiloxane PLA polylactic acid PMS polymethyl-silsesquioxane PMPS poly-methyl-phenyl-silsesquioxane PP polypropylene PPM parts per million PS polystyrene PSD pore size distribution PU polyurethane PVA polyvinyl alcohol, PVDF, polyvinylidene fluoride PVP polyvinylpyrrolidone PVS poly(vinyl)silazane RB rhodamine B SEM scanning electron microscopy SF 6 sulfur hexafluoride SiBCN silicoboron carbonitride SiC silicon carbide SiCN silicon carbonitride Si 3 N 4 silicon nitride SiO 2 silica SiOC silicon oxycarbide SSA specific surface area TEM transmission electron microscopy TiO 2 titania UV ultraviolet ZnO zinc oxide ZrO 2 zirconia

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Optimized waste-free valorization of fish processing by-products: comparative insights into fertilizer production and collagen recovery

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Biomass and Bioenergy 2025年 201卷

作者： Daniel Szopa Magdalena Wojtas Mirosława Różycka Małgorzata Mironiuk Piotr Dobryszycki Anna Witek-Krowiak Department of Chemical Process Engineering and Technology Faculty of Chemistry Wrocław University of Science and Technology Gdanska 7/9 50-344 Wroclaw Poland Department of Biochemistry Molecular Biology and Biotechnology Faculty of Chemistry Wrocław University of Science and Technology Wybrzeze Wyspianskiego 27 50-370 Wroclaw Poland Department of Advanced Material Technologies Faculty of Chemistry Wrocław University of Science and Technology Smoluchowskiego 25 50-372 Wroclaw Poland

This study addresses the inefficient valorization of fish processing waste, a significant challenge in sustainable waste management. Current methods typically focus on either fertilizer production or collagen extraction, lacking integrated approaches that maximize resource recovery. This research develops a dual-purpose strategy for utilizing carp and mackerel residues (bones, skin, head meat) through optimized chemical hydrolysis to produce fertilizers while assessing collagen extraction feasibility. Optimal conditions for alkaline hydrolysis were established at 7.5 % KOH, 80 °C, and a 1:1 solid-to-liquid ratio, while acid hydrolysis required 60 % H 2 SO 4 , 100 °C, and the same ratio. The mutual neutralization of hydrolyzates increased nitrogen content by 1.0 % compared to collagen-extraction methods, enhancing fertilizer efficiency. Short-term plant trials (7 days) demonstrated a 70 % increase in stem growth at low nitrogen doses (20 % of requirements) compared to controls, though long-term effects (30 days) require further evaluation. This study advances waste-free processing by integrating collagen recovery with fertilizer production, aligning with circular economy principles. The proposed method enhances nutrient utilization, reduces environmental impact, and provides an economically viable solution for fish by-product management, contributing to sustainable agricultural applications and clean production technologies.

关键词： Fish waste Fertilizer Collagen extraction Hydrolysis Optimization Response surface methodology (RSM) list: RSM the response surface methodology S/L a solid-to-liquid mass ratio C concentration TCD the thermoconductometric method SDS-PAGE Sodium dodecyl sulfate-polyacrylamide gel electrophoresis analysis CD Circular dichroism KW research group with collagen extraction for carp MW research group with collagen extraction for mackerel KO research group with parameters optimization for carp MO research group with parameters optimization for mackerel DOE Design of Experiments SS Sum of Squares df Degrees of Freedom MS Mean Square b∗ standardized beta coefficient SE Standard Error PE Pure Error

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Phase formation prediction and analysis of multicomponent alloys AlCrFeNiM (M=Mo and Zr)

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AIP Conference Proceedings 2024年第1期2967卷

作者： Jan Setiawan Bonita Dilasari Djoko Hadi Prayitno Research Center for Advanced Material Tangerang Selatan Banten 15310 Indonesia Department of Electrical Engineering Universitas Pamulang Jl. PUSPIPTEK Raya No 10 Banten 15310 Indonesia Department of Metallurgical Engineering Bandung Institute of Technology Kota Bandung Jawa Barat 40132 Indonesia Research Center for Radiation Process Kota Bandung Jawa Barat 40132 Indonesia

This study provides a prediction of multi-component alloy AlCrFeNiM by calculating the parameters VEC, ΔΧ, Ω, and δ. In the experiment, the AlCrFeNiM (M=Mo and Zr) were produced by powder metallurgy with sintering at different temperatures varied from 800, 900, and 1000 °C. Phase identification and structural analysis from their diffraction patterns were investigated. The diffraction pattern shows that a complex phase component occurs in the alloys. The B2 phase is generally found for both alloys for all sintering temperatures. In AlCrFeNiMo alloy sintered at a temperature of 800 °C, the Al3Ni2 phase is identified as dominant. In AlCrFeNiZr alloy sintered at a temperature of 1000 °C, the B2 phase content is comparable to the fcc phase. The theoretical density of alloys was also obtained. The results indicate that the alloys AlCrFeNiMo sintered at 800 °C, and AlCrFeNiZr sintered at 900 °C have the lowest density in the series.

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Effects of car electronics penetration, integration and downsizing on their recycling potentials

Resources, Conservation and Recycling: X

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Resources, Conservation and Recycling: X 2020年 6卷

作者： Restrepo, Eliette Løvik, Amund N. Widmer, Rolf Wäger, Patrick Müller, Daniel B. Technology and Society Laboratory Empa – Swiss Federal Laboratories for Material Science and Technology St. GallenCH-9014 Switzerland Industrial Ecology Programme and Department of Energy and Process Engineering Norwegian University of Science and Technology–NTNU TrondheimNO-7491 Norway

Car electronics form an extensive yet untapped source for secondary critical raw materials. To seize their recycling potentials it is imperative to understand how the number and volumes of car electric and electronic (EE) devices are affected by trends in: i) car typology, ii) penetration and integration of automobile electronic control systems (AECS), and iii) unit mass of EE devices. We used a layered dynamic material flow analysis (MFA) incorporating comprehensive data series to analyze the aforementioned trends and their influence on end-of-life mass flows of two automobile EE devices in Switzerland over the period 1975 to 2015. We found that there has been an increased penetration of the EE devices coinciding with a replacement of unifunctional devices by multifunctional ones (integration) and a decrease in their unit mass (downsizing). Both penetration and unit mass changed most rapidly in the 1990s and have flattened after the year 2000. Penetration outweighed integration and downsizing, so that before stabilizing, it caused a rapid increase in the mass flows of the EE devices. Due to the long lifetime of cars, changes in penetration, integration and downsizing are still evident at the end-of-life flows, but can be expected to slow down considerably between 2015 and 2025. The results demonstrate that monitoring of the trends at the car inflow, in combination with a dynamic MFA, can be used to anticipate changes in end-of-life flows 10–20 years before they occur and to timely inform recycling policies. © 2020

关键词： Integration

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Fabrication and characterization of modified ZnO-kapok fiber for separating surfactant-free oil-in-water emulsions

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AIP Conference Proceedings 2024年第1期2925卷

作者： M. Adam Bukhori Hamidon R. Hussin Z. Harun M. Z. Yunos A. R. Ainuddin Department of Mechanical Engineering Technology Faculty of Engineering Technology Universiti Tun Hussein Onn Malaysia Pagoh Higher Education Hub 84600 Muar Malaysia Integrated Material and Process Advanced Manufacturing & Materials Centre Faculty of Mechanical and Manufacturing Engineering Universiti Tun Hussein Onn Malaysia Parit Raja 86400 Malaysia Nano Structure and Surface Modification (NanoSurf) Faculty of Mechanical and Manufacturing Engineering Universiti Tun Hussein Onn 86400 Malaysia

Natural sorbents have several benefits, including high sorption capacity, superior biodegradability, and low cost. Kapok is one of the natural fibers that can be used as absorbent material. These distinctive qualities give kapok fibers greater oil sorption capacity than other oil sorbents currently on the market. However, it is difficult to hold oil properly due to its waxy coating and smooth fiber surface. Thus, in this study, the rough surface fiber has been coated using ZnO via the hydrothermal method. Considering that ZnO is instinctually hydrophilic, this modification of the fiber compounds increases the adsorption of oil in fiber. The surface morphology interaction has been proven with an experiment using a scanning electron microscope (SEM) for morphology investigation, Fourier-transform infrared spectroscopy (FTIR) for identifying organic or inorganic materials, and physical interaction (contact angle analysis). The results obtained display a significant difference between modified kapok fiber with ZnO and raw kapok fiber. The FTIR analysis shows that the modified kapok exhibits the peak’s level of intensity at 3268.88 cm−1 (stretching vibration peak of surface –OH decreases obviously as compared with that of raw kapok fiber, an absorption peak (symmetric stretching vibration of Zn–O–Zn) is observed at 652.28 cm−1. These results suggested that the whole sum of –OH was diminished, and hydrophobic ZnO nanoparticles were developed on the kapok fiber’s surface. A surface morphology analysis using SEM shows that ZnO particles are present on the kapok fiber surface while comparing it to the raw kapok. Modified kapok shows a higher contact angle (138°) compared to raw kapok (125.5°). This can conclude that the kapok fiber modification was successfully achieved using the hydrothermal method.

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Enhanced corrosion protection of mild steel in acidic media using p -bromopiperazinylbenzene: An EIS study

Next Research

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Next Research 2025年第1期2卷

作者： Mohanad Muzahem Khalaf Muzher Taha Mohamed M.M. Hanoon A.A. Khadom F.F. Sayyid A.M. Mustafa Ahmed A. Al-Amiery Materials Techniques Engineering Department Technical Engineering College-Baghdad Middle Technical University Iraq Department of Material Engineering- College of Engineering- University of Diyala Iraq Production and Metallurgy Engineering Department University of Technology-Iraq P.O. Box: 10001 Baghdad Iraq Department of Chemical Engineering College of Engineering University of Diyala P.O. Box: 32001 Diyala Iraq Engineering Technical College Al-Ayen Iraqi University AUIQ An Nasiriyah Dhi Qar Iraq Department of Chemical and Process Engineering Faculty of Engineering and Built Environment University Kebangsaan Malaysia (UKM) Bangi P.O. Box 43000 Selangor Malaysia

This study proposes the new use of p-bromopiperazinylbenzene as an inhibitor for the corrosion of mild steel immersed in 1.0 M HCl solution by means of electrochemical impedance spectroscopy (EIS). Other traditional inhibitors may not contain bromine and nitrogen atoms which makes the structure of p-bromopiperazinylbenzene to have better adsorption characteristics and high corrosion duty. Inhibitor concentration between 0.1 and 0.5 mM was studied for 5 h at 303 K and significant enhancement in polarization resistance (Rp) and decreased values of double-layer capacitance, CPE were recorded which reached 87 % when concentration of p-bromopiperazinyl benzene was 0.5 mM. Data support the formation of a tightly bound protective coating on the mild steel surface that restricts the infiltrations of corrosion ions and thereby lowers corrosion rate. p-bromopiperazinyl benzene is put forward as an industrially useful corrosion inhibitor that is effective at low concentration and can withstand acidic environments thereby opening new possibilities of tackling corrosion in difficult acidic environments.

关键词： Corrosion inhibition Para-bromopiperazinylbenzene Mild Steel Acidic Medium DFT analysis

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Photocatalytic activity of bilayer tio2/zno and zno tio2 thin films 3rd

Photocatalytic activity of bilayer tio2/zno and zno tio2 thi...

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3rd International Conference on Advanced materials Characterization Techniques, AMCT 2019

作者： Hussin, Rosniza Zulkiflee, Nur Syahraain Kamdi, Zakiah Ainuddin, Ainun Rahmahwati Harun, Zawati Mohamed Hatta, Mohamed Nasrul Department of Mechanical Engineering Technology Faculty of Engineering Technology Universiti Tun HusseinOnn Malaysia alan Edu Hub Gunasama 1 Pagoh Edu Hub KM1 Jln Panchor PagohJohor84600 Malaysia Faculty of Mechanical and Manufacturing Engineering Universiti Tun Hussein Onn Malaysia Parit Raja Batu PahatJohor86400 Malaysia Integrated Material and Process Advanced Manufacturing & Materials Centre Faculty of Mechanical and Manufacturing Engineering Universiti Tun Hussein Onn Malaysia Parit Raja Batu PahatJohor86400 Malaysia

ISBN: (纸本)9783035715828

Thin film is a thin material that is resulting from the condensation of species through the deposition of atoms on the substrate. Thin films are usually used in the production of electronic devices, optical coatings, solar cells, and for decorative items. The bilayer of TiO2/ZnO and ZnO TiO2 thin films have some advantages such as can enhance the surface state and surface atomic mobility, which are useful for improving the photocatalytic activity. The motivation to a used double layer of ZnO and TiO2 is to enhance the properties and photocatalytic activity using the different deposition temperature between the layers. The structural of ZnO/TiO2 thin films were studied using X-Ray diffraction (XRD). Field Emission Scanning Electron Microscope (FESEM) was used to determine the surface morphology of ZnO/TiO2 thin films. The photocatalytic activity of ZnO/TiO2 thin films was analysed using the photodegradation of methylene blue (MB) solution. The XRD analysis revealed that highest anatase crystalline phase for TiO2 growth with orientation (1 0 1), while the ZnO crystal phase, zincite occurred at the highest intensity with (1 0 1) orientation.. The bilayer TiO2/ZnO thin film had the highest reaction rate, K, which is 0.0972 h-1 for photocatalytic activity. The characteristics of bilayer TiO2/ZnO and ZnO/TiO2 thin-film is strongly influenced by the calcination temperature and the presence and combination between the two types of materials. © 2020 Trans Tech Publications Ltd, Switzerland.

关键词： Thin films

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Design and assessment of biolubricant production processes utilizing various feedstocks in palm oil-based biodiesel industry

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Journal of Cleaner Production 2025年 518卷

作者： Thanahiranya, Piyawan Sadhukhan, Jhuma Charoensuppanimit, Pongtorn Vacharanukrauh, Treerat Chuetor, Santi Chanthanumataporn, Merika Assabumrungrat, Suttichai Center of Excellence in Catalysis and Catalytic Reaction Engineering Department of Chemical Engineering Faculty of Engineering Chulalongkorn University Bangkok 10330 Thailand Centre for Environment & Sustainability University of Surrey Guildford Surrey GU2 7XH United Kingdom Department of Chemical and Process Engineering University of Surrey Guildford Surrey GU2 7XH United Kingdom Bio-Circular-Green-economy Technology & Engineering Center (BCGeTEC) Department of Chemical Engineering Faculty of Engineering Chulalongkorn University Bangkok 10330 Thailand Center of Excellence in Particle and Material Processing Technology Department of Chemical Engineering Faculty of Engineering Chulalongkorn University Bangkok 10330 Thailand Department of Chemical Engineering Faculty of Engineering King Mongkut's University of Technology North Bangkok (KMUTNB) Bangkok 10800 Thailand Center of Eco-Materials and Cleaner Technology King Mongkut's University of Technology North Bangkok Bangkok 10800 Thailand

Exploring biolubricant production from renewable resources offers a promising path towards sustainability. Various palm oil derivatives present readily available and versatile feedstocks for biolubricant production. This study investigates the design and evaluation of biolubricant production, specifically trimethylolpropane esters, from various palm oil-based feedstocks derived from the biodiesel industry. The aim is to identify the most suitable feedstock for sustainable biolubricant production. Six feedstocks are evaluated, namely fatty acid methyl esters (FAME), high oleic FAME (HOFAME), palm fatty acid distillate (PFAD), high oleic PFAD (HOPFAD), refined palm oil (RPO), and high oleic palm oil fatty acid (HOPOFA). Economic performance, energy efficiency, and environmental impacts are evaluated and served as process performance indexes. The obtained results based on a biolubricant production capacity of 10,000 tonne per year indicate that HOPFAD is the most suitable feedstock for biolubricant production, demonstrating superior economic viability with a net present value (NPV) of 409 million USD, an internal rate of return (IRR) of 144.6 %, and a payback period (PBP) of 1.81 years. Life cycle assessment results reveal that FAME, HOFAME, PFAD, and HOPFAD provoke similar overall environmental performance, with HOPFAD having only slightly better performance than others. Additionally, the HOPFAD production (6 kg CO2-eq/kg) results in a seven-fold reduction in global warming potential (GWP) compared to conventional mineral oil-based biolubricants. Thus, overall, HOPFAD is recommended for balanced tradeoffs between economic, energy, and environmental performances. © 2025 Elsevier Ltd

关键词： Palm fatty acid distillate Palm oil methyl ester process simulation Refined palm oil Trimethylolpropane ester

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Effect of glass fiber hybridization and radiation treatment to improve the performance of sustainable natural fiber-based hybrid (jute/glass) composites

Next Sustainability

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Next Sustainability 2025年 6卷

作者： S.H. Mahmud S.C. Das A. Saha T. Islam D. Paul M.W. Akram M.S. Jahan M.Z.I. Molla M.A. Gafur R.A. Khan Department of Textile Engineering National Institute of Textile Engineering and Research University of Dhaka Dhaka 1000 Bangladesh Department of Textile Engineering Mawlana Bhashani Science and Technology University Tangail 1902 Bangladesh Institute of Radiation and Polymer Technology Atomic Energy Research Establishment Bangladesh Atomic Energy Commission Savar Dhaka 1349 Bangladesh Department of Manufacturing and Civil Engineering Norwegian University of Science and Technology Gjøvik 2815 Norway Pabna Textile Engineering College Pabna Bangladesh Department of Textile Engineering Jashore University of Science and Technology Jessore 7408 Bangladesh Department of Textiles Merchandising and Interiors University of Georgia Athens GA 30602 USA Department of Textile and Fibre Engineering Indian Institute of Technology Delhi New Delhi India Department of Fashion Design and Apparel Engineering National Institute of Textile Engineering and Research University of Dhaka Dhaka 1000 Bangladesh Department of Material and Metallurgical Engineering Bangladesh University of Engineering and Technology Dhaka Bangladesh Pilot Plant and Process Development Centre (PP & PDC) Bangladesh Council of Scientific and Industrial Research Dhaka 1205 Bangladesh

The current work aims to utilize sustainable natural fibers such as jute fiber in composite materials and a sustainable technology such as gamma (γ) irradiation to further treat the composites for their performance enrichment. First, synthetic glass fibers were hybridized to improve the performance of natural fiber composites (NFCs) with different stacking sequences. Jute fabrics were used as a natural fiber reinforcement and unsaturated polyester resin was employed as a thermoset polymer matrix. Composite laminates were manufactured by compression molding using a heat press machine. After hybridization, the mechanical properties and water resistance were improved compared to the neat NFCs (i.e., jute fiber composites, J0). The tensile strength, bending strength, tensile modulus, bending modulus, and impact strength were improved to 7–56, 5–53, 21–54, 27–69, and 199–387 %, respectively, than the J0. Further, gamma (γ) irradiation (5.0 kGy) was employed as a sustainable and chemical-free technology to treat the hybrid composite materials and improve the performance, and the optimum improvement was revealed for H3 (G 2 J 4 G 2 ) hybrid composites. For H3, the enhancement of tensile, bending and impact strength was revealed at approximately 28, 65 and 27 %, respectively, while the tensile and bending modulus were exhibited at approximately 27 and 71 %, respectively, compared to their non-irradiated composite ones. Further characterization of the composites was studied by FTIR (Fourier Transform Infrared) spectroscopy and SEM (Scanning Electron Microscopy) experimentation.

关键词： Natural fiber composites (NFCs) Hybrid composites Sustainable composites Stacking sequence Thermoset polymer matrix Gamma (γ) irradiation

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Preparation and physical properties of polyethylene/carbon nanotubes/nanosilver composite 4

Preparation and physical properties of polyethylene/carbon n...

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2020 4th International Conference on material Science and technology, ICMST 2020

作者： Ge, Feifan Yao, Wei-Hua Lin, Xu Chen, Jui-Chin Jiang, Lin Tsou, Chi-Hui Material Corrosion and Protection Key Laboratory of Sichuan Province Sichuan Provincial Key Laboratory of Process Equipment and Control College of Materials Science and Engineering Sichuan University of Science and Engineering Zigong643000 China Department of Materials and Textiles Oriental Institute of Technology New Taipei City22061 Taiwan Zigong Fourth People's Hospital Zigong643000 China Sichuan Zhirenfa Environmental Protection Technology Co. Ltd. 64300 China Sichuan Zhixiangyi Technology Co. Ltd. Chengdu610051 China

In this paper, nanosilver and carbon nanotubes was melt blended with HDPE and pet respectively to prepare HDPE/CNT/nanosilver and PET/CNT/nanosilver composites with antibacterial effect. After the preparation of samples, SEM, DSC, TGA, mechanical properties and antibacterial properties were tested. The possibility of preparing new materials by this method is studied. Compared with pure HDPE, when the content of CNT/nanosilver is 0.1 phr, the tensile strength of HDPE/CNT/nanosilver composite reach to the max value. © 2020 Institute of Physics Publishing. All rights reserved.

关键词： High density polyethylenes

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