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Recent Advances in Fibrous materials for Hydroelectricity Generation

Nano-Micro Letters 2025年第2期17卷 109-133页

作者： Can Ge Duo Xu Xiao Feng Xing Yang Zheheng Song Yuhang Song Jingyu Chen Yingcun Liu Chong Gao Yong Du Zhe Sun Weilin Xu Jian Fang College of Textile and Clothing Engineering Soochow UniversitySuzhou 215123People’s Republic of China National Engineering Laboratory for Modern Silk Soochow UniversitySuzhou 215123People’s Republic of China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200People’s Republic of China Institute of Functional Nano&Soft Materials(FUNSOM) Soochow UniversitySuzhou 215123People’s Republic of China Department of Electrical and Computer Engineering University of MassachusettsAmherstMA 01003USA Department of Materials Imperial College LondonSouth Kensington CampusLondon SW72AZUK College of Textile Science and Engineering Zhejiang Sci-Tech UniversityHangzhou 310018People’s Republic of China School of Materials Science and Engineering Shanghai Institute of Technology100 Haiquan RoadShanghai 201418People’s Republic of China

Depleting fossil energy sources and conventional polluting power generation pose a threat to sustainable *** generation from ubiquitous and spontaneous phase transitions between liquid and gaseous water has been considered a promising strategy for mitigating the energy *** materials with unique flexibility,processability,multifunctionality,and practicability have been widely applied for fibrous materials-based hydroelectricity generation(FHG).In this review,the power generation mechanisms,design principles,and electricity enhancement factors of FHG are first ***,the fabrication strategies and characteristics of varied constructions including 1D fiber,1D yarn,2D fabric,2D membrane,3D fibrous framework,and 3D fibrous gel are ***,the advanced functions of FHG during water harvesting,proton dissociation,ion separation,and charge accumulation processes are analyzed in ***,the potential applications including power supply,energy storage,electrical sensor,and information expression are also ***,some existing challenges are considered and prospects for future development are sincerely proposed.

关键词： Hydroelectricity Fibrous material Streaming potential Ion diffusion

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Continuous Basalt Fibers into Fireproof and Thermal Insulation Architectures Using an Additive Manufacturing Manipulator

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SSRN 2023年

作者： Yan, Chunze Shi, Yusheng Su, Bin Liu, Zhufeng Zhang, Lichao Li, Zhaoqing Wang, Changshun Wu, Zhenhua Wu, Siqi Wu, Hongzhi Geng, Peng Chen, Si Liu, Guizhou Yang, Lei Xia, Zhigang State Key Laboratory of Materials Processing and Die & Mould Technology Huazhong University of Science and Technology Wuhan430074 China Engineering Research Center of Ceramic Materials for Additive Manufacturing Ministry of Education Wuhan430074 China Wuhan Zeqing Technology Co. Ltd. Wuhan430074 China School of Transportation and Logistics Engineering Wuhan University of Technology Wuhan430063 China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan430200 China

The weaving technique used for basalt fibers is suitable for making architectures with a two-dimensional (2D) structure, but in practical applications, three-dimensional (3D) structure architectures are required in many fields. Additive manufacturing (AM) technology is suitable for fabricating 3D complex parts. However, the existing AM technology is only used to process continuous basalt fibers reinforced polymers for mechanical enhancement. Therefore, here, we report the fabrication of continuous basalt fibers with fireproof and thermal insulation performance through the combination of an AM manipulator, two-step precursor infiltration and pyrolysis (PIP) processes. Using SiOC ceramics to fill between continuous basalt fibers will help improve the architectures' fire and thermal insulation performance. In order to reduce the structural defects generated by the first PIP process, the final part with fireproof and thermal insulation performance was fabricated through the second PIP process. We further demonstrated the final part with excellent fireproof and thermal insulation performance. The final part had a shell temperature of 788.8℃ and an internal temperature of about 50℃ under the flame spray gun for the 20 s. By replacing polymers with inorganic materials, our basalt architectures exhibit their potential applications in military, aviation, and civil fireproof and thermal insulation equipment. © 2023, The Authors. All rights reserved.

关键词： 3D printing

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Enhanced Carbamazepine Removal by Oms-2@Acf During the Activated Sludge Treatment

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SSRN 2023年

作者： Bao, Yongfen Yang, Ning Xiao, Lixi Deng, Yuwei Liu, Yang Wu, Zhiyu Yin, Hang Li, Mengru Pei, Xuanyuan Ye, Yuxuan Pan, Fei School of Stomatology and Ophthalmology Xianning Medical Colloge Hubei University of Science and Technology Xianning437100 China School of Environmental Engineering Wuhan Textile University Wuhan430073 China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan430200 China

The use of nanomaterials to enhance bioprocessing for the removal of pharmaceuticals and personal care products (PPCPs) has received increasing attention. However, the interactions between nanomaterials and microbial communities are unclear. This study reveals the potential and mechanism of synthesized octahedral molecular sieve and activated carbon fiber (OMS-2@ACF) composites in enhancing the aerobic microbial capacity of sequencing batch reactor (SBR) for the treatment of carbamazepine. In an SBR, a series of doses (0-1.0 g/L) of OMS-2@ACF were introduced to investigate their impact on the treatment of carbamazepine by activated sludge. OMS-2@ACF demonstrated an enhancing effect on the carbamazepine removal performance of the SBR. Furthermore, the SBR reactor with the addition of 1.0 g/L of OMS-2@ACF exhibited the most effective removal of carbamazepine. Illumina high-throughput sequencing revealed that OMS-2@ACF material altered the composition of the microbial community in the SBR, identifying the Comamonas as the key genus contributing most significantly to the community response. Analysis indicated that the presence of OMS-2@ACF material increased metabolic pathways associated with contaminants degradation, resulting in improved treatment performance of the SBR. © 2023, The Authors. All rights reserved.

关键词： Carbon fibers

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In-Situ Growth of Robust and Superhydrophilic Nano-Skin on Electrospun Janus Nanoﬁbrous Membrane Toward Ultra-High Separation Efficiency, Long Cycle Stability, and Antibacterial Activity of Oil/Water Emulsions Separation

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SSRN 2023年

作者： Cheng, Bingbing Yan, Song Li, Yushan Zheng, Long Wen, Xianjie Tan, Yeqiang Yin, Xianze College of Materials Science and Engineering State Key Laboratory of New Textile Materials & Advanced Processing Technology Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing Engineering Research Center of Ministry of Education for Clean Production of Textile Printing and Dyeing National Local Joint Laboratory for Advanced Textile Processing and Clean Production Wuhan Textile University Wuhan430200 China Department of Anesthesiology The Second People’s Hospital of Foshan City Guangdong Province Foshan528000 China State Key Laboratory of Bio-Fibers and Eco-Textiles Collaborative Innovation Center of Marine Biobased Fiber and Ecological Textile Technology Institute of Marine Biobased Materials College of Materials Science and Engineering Qingdao University Qingdao266071 China

It is difficult for composite fibrous membranes to achieve up to 99.5% separation eﬃciency for oil/water emulsions under cycling separation. Herein, a simple method is developed to in-situ grow surperhydrophilic nanocoating on a single electrospun polyvinylidene ﬂuoride (PVDF) fiber surface for fabricating asymmetric wettable Janus PVDF fibrous membranes. Particularly, polysaccharide fluids with zwitterionic polymer chains are generated from the nanoﬁber subsurface in an inside-out way during the electrospinning process, forming the robust superhydrophilic nanocoating (99.5 %), a high flux (up to 4325 L·m-2·h-1·bar-1), antibacterial activity (>99%) and antifoul properties. Moreover, the obtained Janus membranes own surprising flux cycling stability and retained 99.5% separation efficiency after 12 cycles without any treatment, indicating that the multi-arm polysaccharide fluids acted as the water channel in such membrane and accelerated the ﬂow of water molecules. The Janus PVDF composite membranes have potential applications for oily wastewater treatment and water purification in the future. © 2023, The Authors. All rights reserved.

关键词： Wastewater treatment

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Boosting Effective Capacitance of Nano-Grained Batio3-Based Ceramics Via a Precise Core-Shell Structure Optimization Strategy

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SSRN 2024年

作者： Zhu, Chaoqiong Cai, Ziming Xiao, Mengjian Jiang, Ying Feng, Peizhong Li, Shiheng Cao, Xiuhua Fu, Zhenxiao Wang, Xiaohui School of Materials Science and Physics China University of Mining and Technology Jiangsu Xuzhou221116 China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing100084 China State Key Laboratory of Advanced Materials and Electronic Components Guangdong Fenghua Advanced Technology Holding Co. Ltd. Guangdong Province Zhaoqing526000 China

Under the trend of miniaturization of multilayer ceramic capacitors (MLCCs), thinner dielectric layers withstood a higher electric field will suffer larger deterioration in capacitance. Thus, it is urgent to improve the DC-bias stability and maintain a considerable effective capacitance under high electric fields to match the requirements of high-end MLCCs. In this work, a strategy of regulating the DC-bias performance via the core-shell structure modulation is proposed. Both numercial predictions and experimental verifications show that the DC-bias performance of core-shell structured ceramic samples can be significantly optimized under the double action of shell thickening and shell dielectric constant increasing, achieving considerable dielectric constant and DC-bias stability simultaneously. The Dy-Mg-co-doping BT-based ceramics with an average grain size about 180nm successfully achieved an outstanding DC-bias performance, realizing a high dielectric constant about 2000 together with a low DC-bias attenuation coefficient of -23.6%@4 kV/mm and guaranteeing a high effective capacitance especially in high fields. © 2024, The Authors. All rights reserved.

关键词： Finite element method

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Ultra-high-amplitude Peregrine solitons induced by helicoidal spin-orbit coupling

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Physical Review Research 2024年第3期6卷 L032036-L032036页

作者： Cui-Cui Ding Qin Zhou B. A. Malomed Research Group of Nonlinear Optical Science and Technology Research Center of Nonlinear Science School of Mathematical and Physical Sciences State Key Laboratory of New Textile Materials and Advanced Processing Technologies Department of Physical Electronics School of Electrical Engineering Faculty of Engineering and the Center for Light-Matter University Instituto de Alta Investigación

In the framework of the model of a spatially nonuniform Bose-Einstein condensate with helicoidal spin-orbit (SO) coupling, we find abnormal Peregrine solitons (PSs) on top of flat and periodic backgrounds, with ultrahigh amplitudes. We explore the roles of the SO coupling strength and helicity pitch in the creation of these anomalously tall PSs and find that their amplitude, normalized to the background height, attains indefinitely large values. The investigation of the modulation instability (MI) in the same system demonstrates that these PSs exist in a range of relatively weak MI, maintaining the feasibility of their experimental observation.

关键词： Solitons

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Nir-Response Amorphous Feooh Anchored Bio2-X for Chlorophenols Photodegradation Via Molecular Oxygen Activation

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SSRN 2023年

作者： Huang, Shengnan Chen, Fengxi Zhu, Deyu Li, Jun Liu, Yunling Chen, Rong State Key Laboratory of New Textile Materials & Advanced Processing Technologies Wuhan Textile University Hubei Wuhan430200 China School of Chemistry and Environmental Engineering Wuhan Institute of Technology Donghu New & High Technology Development Zone Hubei Wuhan430205 China Henan Institute of Advanced Technology Zhengzhou University Zhengzhou450002 China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University Jilin130012 China

Chlorophenols (CPs) are universal and toxic pollutants in nature, as they have been widely detected in surface water, groundwater, sediment, ambient air, soil, and the human body. In this work, novel FeOOH@BiO2-x binary heterostructure composites with UV-Vis-NIR full-spectrum response were successfully constructed by anchoring highly dispersed amorphous FeOOH on BiO2-x nanosheets. A series characterization indicated the binary components were successfully obtained. The FeOOH@BiO2-x photocatalysts exhibited highly enhanced photocatalytic activity for the degradation of chlorophenols under UV-Vis-NIR full-spectrum irradiation. The amorphous FeOOH could effectively broaden the light response range, modulate the energy band structure and promote the separation and transfer of photogenerated electron-holes pairs, thus boosting the activation of molecular oxygen to generate •O2-. Furthermore, FeOOH@BiO2-x maintained excellent photocatalytic performance upon real solar light of varied irradiance for consecutive 7 days, indicative of great potential towards phenolic pollutants degradation in water. The redox couples of Fe3+/Fe2+ and Bi(3+x)+/Bi3+ also accelerate the efficient generation of reactive oxygen species over FeOOH@BiO2-x with improved durability. This work not only contributes to the design of full-spectrum responsive photocatalysts, but also provides a rational strategy for molecular oxygen activation towards the elimination of emerging contaminants. © 2023, The Authors. All rights reserved.

关键词： Bismuth compounds

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Enhanced Flexoelectric and Piezoelectric Pairing of Bent Polyvinylidene Fluoride (Pvdf) Membrane with Two-Dimensional (2d) Stannic Sulfide-Bismuth Oxychloride (Sns2-Biocl) Heterojunction

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SSRN 2024年

作者： Li, Wen-Ming Zhang, Hui Dai, Chen-Min Miao, Jiao-Jiao Fan, Wei Song, Qing-Wen Xia, Liang-Jun Xu, Wei-Lin Key Laboratory of Functional Textile Material and Product of Ministry of Education School of Textile Science and Engineering Xi'an Polytechnic University Xi’an710048 China Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application School of Physical Science and Technology Suzhou University of Science and Technology Suzhou215009 China Interdisciplinary Research Center of Biology & Catalysis School of Life Sciences Northwestern Polytechnical University Xi’an710072 China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan430200 China

In this study, n-type stannic sulfide (SnS2) nanosheets and p-type bismuth oxychloride (BiOCl) nanosheets prepared by hydrothermal method are utilized to construct the heterostructure SnS2-BiOCl composite through ultrasonication and grinding procedures. The piezoelectric SnS2-BiOCl heterojunction nanosheets are incorporated into the ferroelectric polyvinylidene fluoride (PVDF) membrane to fabricate the PVDF-based SnS2-BiOCl (PVDF-SnS2-BiOCl) flexoelectric strain sensor. The optimal amount of SnS2-BiOCl heterojunction in the PVDF-SnS2-BiOCl membrane is determined. A thorough analysis is conducted on the impact of bending curvature, frequency of bending, the size and thickness of the membrane, water flapping, underwater bending, resistance to fatigue from repeated bending, and resistance to corrosions from acid and alkali on the membrane's output current and voltage. The experimental and density functional theory (DFT) calculation results indicate that the PVDF-SnS2-BiOCl(2:1)-10% membrane, functioning as a smart strain sensor, has the ability to monitor human joint movements and water fluctuations in different situations. Additionally, it can be used as a coating for polyester and linen fabrics and can be connected in series or in parallel. The experimental findings align closely with the results obtained from DFT calculations. The outcomes demonstrate that the PVDF-SnS2-BiOCl membrane strain sensor, which is highly flexible, sensitive, and attachable, is well-suited for smart wearable electronic materials. © 2024, The Authors. All rights reserved.

关键词： Heterojunctions

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Composite Polymer Electrolyte Membranes based on Nafion and Modified PVDF Electrospun Nanofiber Mats

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Journal of Wuhan University of technology(materials Science) 2020年第4期35卷 677-681页

作者： HE Yining WANG Di LI Qiong HUANG Leping BAO Haifeng School of Materials Science and Engineering Wuhan Textile UniversityWuhan 430200China High-Tech Organic Fibers Key Laboratory of Sichuan Province Chengdu 610072China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China

We fabricated the nanofiber composite membranes by impregnating Nafion into the modified polyvinylidene fluoride(PVDF) electrospinning nanofiber mat for proton exchange membrane fuel cells *** hydrophobic PVDF nanofibers mat became to the hydrophilic state by alkali treatment for the full embedding of Nafion into the PVDF *** fabricated composite membranes exhibit significantly enhanced thermal stabilities,swelling resistance,and observably improved mechanical property compared to the pristine Nafion *** the content of PVDF nanofiber mat is 15.1wt% in the membrane,the proton conductivity of the nanofiber composite membrane is nearly equal to that of pristine Nafion membrane with the same *** experimental results show that the prepared composite membrane can be used as a promising polyelectrolyte membrane for fuel cell applications.

关键词： proton exchange membrane hydrophilic treatment PVDF electrospinning

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On the accurate characterization of quantum-dot light-emitting diodes for display applications

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npj Flexible Electronics 2022年第1期6卷 351-362页

作者： Wangxiao Jin Yunzhou Deng Bingbing Guo Yaxiao Lian Baodan Zhao Dawei Di Xiaowei Sun Kai Wang Shuming Chen Yixing Yang Weiran Cao Song Chen Wenyu Ji Xuyong Yang Yuan Gao Shuangpeng Wang Huaibin Shen Jialong Zhao Lei Qian Fushan Li Yizheng Jin Key Laboratory of Excited-State Materials of Zhejiang Province State Key Laboratory of Silicon MaterialsDepartment of ChemistryZhejiang University310027 HangzhouChina State Key Laboratory of Modern Optical Instrumentation College of Optical Science and EngineeringInternational Research Center for Advanced PhotonicsZhejiang University310027 HangzhouChina Department of Electronic and Electrical Engineering Southern University of Science and Technology518055 ShenzhenChina TCL Research ShenzhenGuangdongChina Shenzhen China Star Optoelectronics Semiconductor Display Technology Co. LtdShenzhenGuangdongChina College of Chemistry Chemical Engineering and Materials ScienceSoochow University199 Ren’ai Rd215123 SuzhouJiangsuChina Key Lab of Physics and Technology for Advanced Batteries(Ministry of Education) College of PhysicsJilin University130023 ChangchunChina Key Laboratory of Advanced Display and System Applications of Ministry of Education Shanghai University149 Yanchang RoadShanghai 200072China Najing Technology Corporation Ltd Hangzhou 310052China Institute of Applied Physics and Materials Engineering University of MacaoTaipaMacaoSAR 999078China Key Laboratory for Special Functional Materials of Ministry of Education National&Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technologyand Collaborative Innovation Center of Nano Functional Materials and ApplicationsHenan UniversityKaifeng 475004China School of Physical Science and Technology MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and MaterialsGuangxi Key Laboratory of Processing for Non-ferrous Metals and Featured MaterialsGuangxi UniversityNanning 530004China Division of Functional Materials and Nanodevices Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China College of Physics and Information Engineering Fuzhou UniversityFuzhou 350108China

Quantum dot light-emitting diodes(QLEDs)are a class of high-performance solution-processed electroluminescent(EL)devices highly attractive for next-generation display *** the encouraging advances in the mechanism investigation,material chemistry,and device engineering of QLEDs,the lack of standard protocols for the characterization of QLEDs may cause inaccurate measurements of device parameters and invalid comparison of different ***,we report a comprehensive study on the characterizations of QLEDs using various *** show that the emission non-uniformity across the active area,nonLambertian angular distributions of EL intensity,and discrepancies in the adopted spectral luminous efficiency functions could introduce significant errors in the device *** errors in the operational-lifetime measurements may arise from the inaccurate determination of the initial luminance and inconsistent methods for analyzing the luminance-decay ***,we suggest a set of recommended practices and a checklist for device characterizations,aiming to help the researchers in the QLED field to achieve accurate and reliable measurements.

关键词： diodes characterization luminous

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