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International Journal of Ceramic Engineering and science 2020年第2期2卷 83-91页

作者： Kikuchi, Masanori Arioka, Yuki Tafu, Masamoto Irie, Mitsuteru Bioceramics Group National Institute for Materials Science Tsukuba Japan Master's Program in Life Science Innovation University of Tsukuba Tsukuba Japan Department of Applied Chemistry and Chemical Engineering Toyama College National Institute of Technology Toyama Japan Faculty of Engineering University of Miyazaki Miyazaki Japan

Changes in fluoride removal ability of chicken bone char (CBC) were investigated by both remained amounts of carbon including organic substances and crystallite size of hydroxyapatite in the CBC. Carbon contents in CBC were controlled by heating time at 600°C. Although temperature for crystal-grain growth for HAp, 650°C, was higher than 600°C, crystallite size of HAp in CBC increased with heating time. Fluoride ion removal ability positively related to the amount of remaining carbon and negatively related to the square of crystallite size, as an index of surface area, of HAp. These results suggested that fluoride ion removal from water by CBC is not only by ion exchange and/or dissolution-precipitation process, but also by adsorption by carbon and/or temporal capture of fluoride ion by microstructure of carbonate in CBC before immobilize it in apatite structure. © 2019 The Authors. International Journal of Ceramic Engineering & science published by Wiley Periodicals, Inc. on behalf of American Ceramic Society.

关键词： Crystallite size

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Compact And Scalable Large Vortex Array Generation Using Azocarbazole Polymer And Digital Hologram Printing Technique

Research Square

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Research Square 2021年

作者： Jessie, Jackin Boaz Masaki, Shirai Honoka, Haginaka Kinashi, Kenji Tsutsumi, Naoto Sakai, Wataru Materials Innovation Laboratory Kyoto Institute of Technology Kyoto Japan Master’s Programs of Materials Chemistry Kyoto Institute of Technology Kyoto Japan Bachelor’s Program of Materials Chemistry Kyoto Institute of Technology Kyoto Japan Faculty of Materials Science and Engineering Kyoto Institute of Technology Kyoto Japan

An integrated device capable of generating large number of multiplexed optical vortex beams with arbitrary topological charges is considered as one of the crucial requirement for driving information photonics forward. Here we report a simple method for simultaneous generation of 100 multiplexed optical vortex beams from a polymer film of size 1mm2 and thickness of 30µm. This is achieved through a combination of computer generated holography, digital hologram printing and photoisomeric polymers. When the fabricated sample is illuminated with a collimated laser beam, a pre-determined vortex array with arbitrary topological charge is emitted. The polymer film easy to synthesise and exhibits good diffraction efficiency and long retention time. © 2021, CC BY.

关键词： Holograms

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Optimizing dispersion of torrefied spent coffee grounds for enhanced biochar-EVA composite properties through sodium percarbonate-assisted treatment

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Journal of Industrial and Engineering Chemistry 2025年

作者： Lee, Kuan-Ting Gabriela, Situmorang Chen, Wei-Hsin Rajendran, Saravanan Selvarajoo, Anurita Department of Chemical and Materials Engineering Tunghai University Taichung407 Taiwan International Master Degree Program on Energy Engineering National Cheng Kung University Tainan701 Taiwan Department of Aeronautics and Astronautics National Cheng Kung University Tainan701 Taiwan Research Center for Smart Sustainable Circular Economy Tunghai University Taichung407 Taiwan Department of Mechanical Engineering National Chin-Yi University of Technology Taichung411 Taiwan Instituto de Alta Investigación Universidad de Tarapacá Arica1000000 Chile Department of Civil Engineering Faculty of Science and Engineering University of Nottingham Malaysia

This study aims to optimize biochar by combining 10 % sodium percarbonate with 90 % spent coffee grounds and torrefying at 300 °C for 30 min. Biochar enhances black color dispersion in a composite when blending the optimal biochar and ethylene vinyl acetate. The maximum carbon content of the optimal biochar is 59.97 %, exhibiting similar dispersion, packing density, pore size, and contact angle to carbon black. The optimal biochar's specific surface area and total pore volume are 7.12 m2·g−1 and 0.0018 cm3·g−1, respectively, 2.9 times and 1.2 times that of untreated torrefied spent coffee grounds with SP treated. The mechanical properties of the composite, which is blended with 15 wt% of the optimal biochar to ethylene vinyl acetate through trade-off analysis, indicate a tensile strength and Young's modulus of 1.03 MPa and 9.69 MPa, respectively. As the amount of blended optimal biochar increases, the tensile strength decreases while Young's modulus increases. Compared with a composite blended with the same 15 wt% of carbon black, the tensile strength and Young's modulus are 0.77 MPa and 9.55 MPa, respectively. In conclusion, the optimal biochar is a potential alternative material that could replace carbon black. This finding aligns with the developmental direction of achieving negative carbon emissions, promoting a circular economy and valorizing waste. © 2025 The Korean Society of Industrial and Engineering Chemistry

关键词： Tensile strength

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Title Biodecolorization of Biogas Power Plant Effluent Derived from Anaerobically Digested Distillery Wastewater by Natural Selected Pseudomonas Putida from Activated Sludge of the Wastewater Treatment Plant

SSRN

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SSRN 2023年

作者： Kumkaew, Ponruedee Suaisom, Pitchaya Mukkata, Kanokwan Koonaphapdeelert, Sirichai Sawatdeenarunat, Chayanon Nitayavardhana, Saoharit Master’s Degree Program in Environmental Engineering Faculty of Engineering Chiang Mai University Chiang Mai50200 Thailand Graduate School Chiang Mai University Chiang Mai50200 Thailand Energy Research and Development Institute – Nakornping Chiang Mai University Chiang Mai50200 Thailand Department of Environmental Engineering Faculty of Engineering Chiang Mai University Chiang Mai50200 Thailand Asian Development College for Community Economy and Technology Chiang Mai Rajabhat University Chiang Mai50300 Thailand Center of Excellence in Materials Science and Technology Chiang Mai University Chiang Mai50200 Thailand

The main aim of this study was to utilize naturally selected Pseudomonas putida strains isolated from activated sludge in a wastewater treatment plant, for the purpose of bioremediation of biogas effluent to remove organic content and color. Biogas effluent from anaerobically digestion of distillery wastewater treated with P. putida at the best evaluated condition (sample concentration of 50% v/v, agitation and aeration rates of 250 rpm and 1.0 vvm for 6 days) showed significant decolorization and organic removal efficacies of 34.29 ± 0.87% and 38.94 ± 0.63%, respectively. Bioremediation efficiency was dependent on bacterial growth which organic content in sample and dissolved oxygen during cultivation were key factors. The natural selected bacterium could tolerate higher organic content and work synergistically with other indigenous microorganisms found in the biogas effluent. Consequently, bioremediation of biogas effluent by natural selected P. putida is feasible to apply in biogas power plant where sterilization is not necessary in the process. © 2023, The Authors. All rights reserved.

关键词： Bioremediation

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Fabrication and electroluminescent property of OLED with boron-complex 3

Fabrication and electroluminescent property of OLED with bor...

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3rd International Conference on Electron Device and Mechanical Engineering, ICEDME 2020

作者： Lin, Yu-Feng Yeh, Anchi Chen, Sheng-Lee Fanny Lin, M.-F. ChungYuan Christiant University Department of Chemical and Materials Engineering Taoyuan Taiwan Chengshiu University Department of Cosmetic and Fashion Styling Kaohsiung Taiwan Hsing Wu University of Science and Technology Center of General Education Taoyuan Taiwan Long Island University at CW Post Master Program of Education New York United States

ISBN: (纸本)9781728181455

A novel luminescence boron compound, [2-(4, 5- diphenyl-1-imidazole-2-yl) pyridine] (DPIP-BPh2), has been synthesized by the reaction of pyridine-imidazole- based ligand. The decomposed temperature of DPIP-BPh2 is high than 200°C by thermogravimetric analyzer (TGA). For the three-layer organic light-emitting diodes (OLED) with the structure ITO/NPB/DPIP-BPh2/Alq3/Mg-Ag, an emission band centering at 490 nm with the maximum brightness of 1300 cd/m2 was observed, indicating a perfect blue OLED (CIE= 0.22, 0.36). DPIP-BPh2 forms a new family of organometallic emitting materials which which may bring benefits to people in practical applications. © 2020 IEEE.

关键词： Pyridine

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Interface Rotation in Cu/Nb Accumulative Roll Bonded (ARB) Nanolaminates

SSRN

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SSRN 2022年

作者： Radchenko, Ihor Zhu, Wenxin Qing, Liu Navarro, Etienne Sahay, Rahul Lee, Pooi See Raghavan, Nagarajan Thomas, Olivier Budiman, Arief Suriadi Chen, Kai State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong University Xi’an China School of Materials Science and Engineering Nanyang Technological University Singapore639798 Singapore Nanyang Technological University Temasek Laboratories@NTU 637553 Singapore Aix Marseille Université Université de Toulon CNRS IM2NP Marseille France Xtreme Mechanics Lab 8 Somapah Road Singapore487372 Singapore Singapore487372 Singapore Department of Manufacturing and Mechanical Engineering and Technology Oregon Institute of Technology Klamath FallsOR97601 United States Industrial Engineering Department BINUS Graduate Program—Master of Industrial Engineering Bina Nusantara University Jakarta11480 Indonesia

Metal-metal nanolaminates made by accumulative roll bonding (ARB) is a developing new class of structural nanocomposites that possesses high strength, good ductility, and can also be produced in bulk. These nanolaminates exhibit strong crystallographic textures and mechanical anisotropy. Yet, their mechanical properties are often measured only along rolling direction (RD). Using in situ pillar compression, we show that in-plane shear deformation mechanism in Cu(63 nm)/Nb(63 nm) ARB nanolaminate strongly depends on the shear direction. Plastic shear along the RD abruptly changes into crystallographic rotation and later into interface shear as the shear direction deviates away from the RD. The observed shear mechanisms are driven by competition between different slip systems in Cu layers and at the interface. We expect similar deformation anisotropy to happen in other ARB nanolaminates with sharp texture and interface orientation. Comprehensive characterization of such nanolaminates may require considering more than just the usual rolling/transverse/normal direction anisotropy. © 2022, The Authors. All rights reserved.

关键词： Anisotropy

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Cold atmospheric plasma-enabled platelet vesicle incorporated iron oxide nano-propellers for thrombolysis

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materials Today Bio 2023年 23卷 100876页

作者： Jheng, Pei-Ru Chiang, Chia-Che Kang, Jiunn-Horng Fan, Yu-Jui Wu, Kevin C.-W. Chen, Yan-Ting Liang, Jia-Wei Bolouki, Nima Lee, Jyh-Wei Hsieh, Jang-Hsing Chuang, Er-Yuan Graduate Institute of Nanomedicine and Medical Engineering Graduate Institute of Biomedical Materials and Tissue Engineering Institute of Biomedical Optomechatronics International Ph.D. Program in Biomedical Engineering School of Biomedical Engineering College of Biomedical Engineering Professional Master Program in Artificial Intelligence in Medicine College of Medicine Taipei Medical University Taipei11031 Taiwan Department of Physical Medicine and Rehabilitation Taipei Medical University Hospital Taipei Taiwan Institute of Biomedical Engineering & Nanomedicine National Health Research Institute Keyan Road Zhunan Miaoli City350 Taiwan Department of Chemical Engineering National Taiwan University No.1 Sec. 4 Roosevelt Rd Taipei10617 Taiwan Department of Plasma Physics and Technology Faculty of Science Masaryk University Brno Czech Republic Center for Plasma and Thin Film Technologies Ming Chi University of Technology New Taipei City Taiwan Department of Materials Engineering Ming Chi University of Technology New Taipei City Taiwan Cell Physiology and Molecular Image Research Center Taipei Medical University-Wan Fang Hospital Taipei11696 Taiwan

A new approach to treating vascular blockages has been developed to overcome the limitations of current thrombolytic therapies. This approach involves biosafety and multimodal plasma-derived theranostic platelet vesicle incorporating iron oxide constructed nano-propellers platformed technology that possesses fluorescent and magnetic features and manifold thrombus targeting modes. The platform is capable of being guided and visualized remotely to specifically target thrombi, and it can be activated using near-infrared phototherapy along with an actuated magnet for magnetotherapy. In a murine model of thrombus lesion, this proposed multimodal approach showed an approximately 80 % reduction in thrombus residues. Moreover, the new strategy not only improves thrombolysis but also boosts the rate of lysis, making it a promising candidate for time-sensitive thrombolytic therapy. © 2023 The Authors

关键词： Infrared devices

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Binary energy production from pineapple peel waste and optimized by statistical and machine learning approaches

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Fuel 2024年 372卷

作者： Chen, Wei-Hsin Liu, Li-Xuan Sheen, Herng-Kuang Culaba, Alvin B. Shiong Khoo, Kuan Lim, Steven Department of Aeronautics and Astronautics National Cheng Kung University Tainan 701 Taiwan Research Center for Smart Sustainable Circular Economy Tunghai University Taichung 407 Taiwan Department of Mechanical Engineering National Chin-Yi University of Technology Taichung 411 Taiwan International Master Degree Program on Energy National Cheng Kung University Tainan 701 Taiwan Sugar Business Division Taiwan Sugar Corporation Tainan 701 Taiwan Department of Mechanical Engineering De La Salle University Manila Philippines Department of Chemical Engineering and Materials Science Yuan Ze University Taoyuan Taiwan Department of Chemical Engineering Universiti Tunku Abdul Rahman Malaysia

This study uses a two-stage process to treat pineapple peel waste (PPW), including alkaline ionized water (AIW) pretreatment and microwave-assisted heating (MAH) hydrolysis. It also contains two objective functions: hydrochar yield and hydrolysis ratio. The experimental design utilizes the Taguchi method to determine optimal conditions by calculating the signal-to-noise ratio. The designed experimental results are used to predict optimal conditions through artificial neural networks (ANN). In the first step, AIW pretreatment reduces the lignin content of PPW by 17.5 % and increases the cellulose content by 14.8 %. SEM analysis reveals a roughening of its surface, while BET analysis identifies a slightly porous structure. These characteristics provide an increased efficiency for subsequent hydrolysis. In the second step, thermogravimetric analysis indicates that a substantial hemicellulose loss is observed when the hydrolysis concentration or temperature increases. This finding aligns with the ranking of factor impacts obtained from the Taguchi method. This study also demonstrates the potential of utilizing PPW for energy production. The hydrochar, hydrolyzed under optimal conditions, increases its calorific value by 10.11 % to 18.29 MJ‧kg⁻¹, making it suitable for use as solid fuel. The hydrolysate has 52.85 g‧L^-1 reducing sugar, which can be fermented to produce ethanol and is much higher than those reported in the literature. Through the Taguchi method and ANN, the optimal experimental factor combination prediction reveals the significant impact of acid hydrolysis compared to AIW pretreatment. The optimal hydrochar yield and hydrolysis ratio in the Taguchi method are 38.75 % and 63.62 %, respectively. In ANN, they are 41.51 % and 58.38 %, respectively, with relative errors of 7.08 % and 8.23 % compared to the experimental results. This research helps turn solid waste into green fuels and approach a circular bioeconomy. © 2024 Elsevier Ltd

关键词： Alkaline ionized water (AIW) Artificial neural network (ANN) Hydrochar Microwave-assisted heating (MAH) Pineapple peel waste (PPW) Taguchi method

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Investigating the Recovery of PVDF/TiO2 Photocatalyst for Methylene Blue Degradation

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Processes 2025年第5期13卷 1392-1392页

作者： Vi N. D. Nguyen Hoang-Jyh Leu Huy N. Q. Phan Tan-Trung Nguyen Dat H. M. Ngo Department of Chemical Engineering Feng Chia University Taichung 40744 Taiwan Master’s Program of Green Energy Science and Technology Feng Chia University Taichung 40744 Taiwan Center for Low-Temperature Plasma Sciences Nagoya University Nagoya 464-8603 Japan Department of Materials Science and Engineering Feng Chia University Taichung 40744 Taiwan Office of Academic Affairs Nha Trang University Nha Trang 57100 Vietnam Faculty of Mathematics and Computer Science University of Science Vietnam National University Ho Chi Minh 72711 Vietnam

The increasing environmental concerns over and demand for sustainable solutions have driven research into the efficient recovery and reuse of waste materials, particularly from photocatalysts used in wastewater treatment. This study addresses the critical challenge posed by used PVDF/TiO2 photocatalysts, which, if not properly managed, contribute to environmental pollution. A practical recovery technique based on the phase inversion method was developed to separate and purify PVDF, TiO2, and the solvent NMP from used composite materials. This method led to recovery rates of 95.17% for PVDF, 98.35% for NMP, and 67% for TiO2. The recycled photocatalyst was then reassembled and tested for its ability to degrade methylene blue, a common dye pollutant. A Box–Behnken design was employed to optimize the treatment conditions, ensuring the process was both efficient and reproducible. The regenerated material achieved up to 99.6% efficiency in the first cycle, with a slight reduction in efficiency observed across subsequent cycles, maintaining over 92% efficiency after 10 cycles. These findings confirm that effective recovery of photocatalytic materials is not only feasible but also beneficial in reducing waste and maintaining high treatment performance.

关键词： PVDF/TiO composite photocatalyst recovery recycling process sustainable photocatalysis

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Effects of heat treatments on the microstructure and hardness of thermally sprayed Ni-Cr-Mo-Al alloy coating

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Journal of Physics: Conference Series 2021年第1期1719卷

作者： A Srichen C Banjongprasert Master's Degree Program in Materials Science Faculty of Science Chiang Mai University Chiang Mai Thailand Department of Physics and Materials Science Faculty of Science Chiang Mai University Chiang Mai Thailand Center of Excellence in Materials Science and Technology Chiang Mai University Chiang Mai Thailand

Thermal spray coating is one of the technologies used to prevent corrosion and wear by creating a protective layer on the substrate. From previous research, the microstructure of arc-sprayed nickel-chromium-molybdenum-aluminium (Ni-Cr-Mo-Al) after heat treatment at 1100°C was investigated. It was found that the corrosion rate of this coating under 20vol%H2SO4 was reduced by 97%. However, the heat treatment at high temperatures is still limited to industrial applications. Therefore, this research will focus on studying microstructure and properties after heat treatment at moderately high temperatures, which are in a range of service temperature. Specimens were arc sprayed and heat treated at 300, 400, 500, 600 and 700°C and characterized by Scanning Electron Microscopy (SEM) with Energy Dispersive X-ray Spectroscopy (EDS) technique. Phases were analyzed by X-ray diffraction (XRD). There was no significant change of γ-Ni grains after heat treated at 600°C for 10 days from the Electron Backscattered Diffraction (EBSD) study. The hardness of the coatings increased after heat treatments due to a reduction in porosity, an increase of oxides and the formation of MoSi2.

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