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Waste-derived cellulose acetate/graphite composite evaporator for sustainable solar desalination with enhanced salt resistance

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Journal of Environmental Chemical Engineering 2025年第3期13卷

作者： Haoran Qiao Kerun Hua Qingru Li Wenbin Li Jiahao He Jiugang Li College of Textile Science and Engineering Wuhan Textile University Wuhan 430200 China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan 430200 China

Solar steam generation is an efficient and sustainable technology for seawater desalination, yet challenges remain in balancing high evaporation efficiency, salt resistance, and environmental friendliness. Herein, we propose a recyclable evaporator (CA@FG) using discarded humidifier filter elements composed of cellulose acetate (CA) coated with graphite (FG) via a polydopamine adhesive. The CA@FG material exhibits superhydrophilicity and a solar absorption efficiency of 97.5 %, enabling rapid water transport and localized photothermal conversion. Under 1 sun illumination, the evaporator achieves a high evaporation rate of 2.35 kg·m −2 ·h −1 and demonstrates exceptional cyclic stability with minimal performance degradation after 10 cycles in 10 wt% brine. Furthermore, the vertical channels within CA@FG facilitate salt ion diffusion, effectively preventing surface crystallization even in concentrated saline solutions (15 wt% NaCl). This work not only repurposes waste materials into high-performance evaporators but also provides a scalable and eco-friendly strategy for addressing freshwater scarcity and wastewater pollution.

关键词： Cellulose acetate Desalination Graphite Photothermal Solar steam generation

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Ballistic response of ultra-high molecular weight polyethylene laminate impacted by mild steel core projectiles

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International Journal of Impact Engineering 2022年第0期169卷

作者： He, Yemao Jiao, Yanan Zhou, Johnny Qing Lei, Hongshuai Jia, Nan Chen, Li Zhang, Diantang School of Textile Science and Engineering Tiangong University Tianjin300387 China Key Laboratory of Advanced Textile Composite Materials Ministry of Education Institute of Textile Composite Materials Tiangong University Tianjin300387 China Beijing Protech New Material Science Co. Ltd. Beijing102200 China State Key Laboratory of Explosion Science and Technology Beijing Institute of Technology Beijing100081 China Key Laboratory of Eco-Textiles Ministry of Education Jiangnan University Wuxi214122 China

This paper presents the effect of interlaminar shear property on the ballistic response of ultra-high molecular weight polyethylene (UHMWPE) fiber composite laminate and discusses the detailed progressive ballistic damage process. Specifically, two kinds of UHMWPE fiber composite laminates with different interlaminar shear strength (ILSS) are impacted by a standard projectile (7.62 mm × 39 mm), and their multi-scale internal damage morphologies are characterized. Based on damage patterns, an evaluation model of laminate energy absorption is established to analyze the dissipation mechanism of the kinetic energy of the projectile. Results of ballistic tests indicate that the reduction of ILSS may result in the degradation of anti-penetration performance and in more serious internal damage. Internal damage morphologies show that shear fracture and delamination fracture are the primary failure modes during ballistic impact. The energy absorption by the laminate via tensile deformation, delamination failure and shear failure may account for 56.21%, 17.45%, and 16.49% of the projectile kinetic energy, respectively. Hence, tensile deformation may be the primary energy dissipation mechanism of projectile kinetic energy. © 2022

关键词： Kinetic energy

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Insights into Simultaneous Adsorption of Orthophosphate (Po43−) and 1-Hydroxyethane 1,1-Diphosphonic Acid (Hedp) by Kaolin/Lanthanum Carbonate Composites: Experimental Analysis and Dft Calculations

SSRN

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SSRN 2023年

作者： Wan, Jun Li, Rui Feng, Xiaonan Yang, Jiazhi Ye, Yuxuan Jian, Sifeng Zhang, Xiaowei School of Environmental Engineering Wuhan Textile University Wuhan430200 China School of Environmental Science & Engineering Huazhong University of Science and Technology Wuhan430074 China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan430200 China Engineering Research Center of Ministry of Education for Clean Production of Textile Dyeing and Printing Wuhan Textile University Wuhan430200 China Central and Southern China Municipal Engineering Design and Research Institute Co. Ltd. Wuhan430010 China

Orthophosphate and phosphonate often co-exist in industrial wastewater, and it is a challenge to remove the above inorganic and organic phosphorus simultaneously to meet the stringent total phosphorus (TP) discharge standard. The kaolin-based lanthanum carbonate (LC) composites have been demonstrated to decontaminate TP (PO43− and HEDP) from RO concentrate effectively, while the individual and simultaneous adsorption behavior and mechanisms are still not clear. In this study, the individual and simultaneous PO43− and HEDP adsorption were compared. The adsorption kinetics, isotherms, initial pH and matrix effects were performed. The results showed that PO43− exhibited a nice adsorption performance, and was severely suppressed in the presence of HEDP. The maximum adsorption capacities were obtained at initial pH of 4.0, and the co-existing Ca2+ significantly enhanced both PO43− and HEDP removal, while HCO3−/CO32− markedly interfered with their adsorption process. LaCO3OH was the main composition in the KLC composites for PO43− and HEDP adsorption, and no La-P compounds formed after adsorption. A variety of characterization methods were adopted to explore the adsorption mechanisms, and electrostatic attraction, inner-sphere complexation and hydrogen bond were responsible for PO43− and HEDP adsorption. The DFT calculations were applied to distinguish the PO43− and HEDP adsorption from the molecular level, and the configuration of H2HEDP-BB with higher adsorption energy (-165.42 KJ/mol) resulted in the predominant species of HEDP in the competitive adsorption. In the fixed-bed column experiments, both PO43− and HEDP adsorption capacities decreased in the binary system compared with that in the single system, which also matched the results of batch experiments and DFT calculations. This study provides insights into the competitive adsorption of orthophosphate and phosphonate by LC-based sorbent. © 2023, The Authors. All rights reserved.

关键词： Lanthanum compounds

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Tailored electronegative-driven MOF channels with bimetallic coordination for synergistic Zn 2+ transport enabling dendrite-free Zn anodes

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Energy Storage materials 2025年 80卷

作者： Ming Chen Wei Fu Chunchao Hou Yunhai Zhu Fanlu Meng School of Materials Science and Engineering Ocean University of China Qingdao 266404 China State Key Laboratory of New Textile Materials and Advanced Processing Wuhan Textile University Wuhan 430200 China

Zinc anodes in aqueous zinc-metal batteries frequently suffer from dendrite growth and extensive side reactions, largely due to a complex electrode-electrolyte interface and uncontrolled ion transport. To enable a robust interface and uniform zinc ion deposition, we systematically introduce a functionalized Zr-Zn bimetallic UiO-66 (UCOOH-10 Zn) artificial layer on zinc anodes. The intrinsic electronegativity of carboxyl group in UCOOH-10 Zn enhances Zn 2+ trapping and transport within its channels across the anode-electrolyte interface. The more electronegative Zn sites in the bimetallic structure facilitate charge transfer near Zn clusters and improve Zn 2+ migration, collectively promoting uniform Zn deposition. Furthermore, the UCOOH-10 Zn layer suppresses anion-induced surface passivation and mitigates interfacial side reactions, thereby enhancing the electrochemical stability of zinc anodes. As a result, the UCOOH-10 Zn coated Zn anode exhibits stable cycling 4000 h at a low overpotential of 47.9 mV under 1 mAh cm −2 . Moreover, a cell assembled with the UCOOH-10Zn@Zn anode and an NH 4 V 4 O 10 cathode achieves 5000 cycles at a current density of 10 A g −1 . This study underscores the critical role of UCOOH-10 Zn as a protective layer and highlights its potential in enabling more reliable and long-lasting aqueous zinc-metal batteries.

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Aqueous Sn-S Complex Derived Electron Selective Layer for Perovskite Solar Cells

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Journal of Wuhan University of technology(materials Science) 2020年第2期35卷 272-279页

作者： LI Zhi SHEN Wenjian ZHAO Juan YING Hangkai WU Zhengli LIU Yifan LI Wangnan KU Zhiliang PENG Yong HUANG Fuzhi CHENG Yibing ZHONG Jie FU Zhengyi State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070China Hubei Research Center for New Energy&Intelligent Connected Vehicle Wuhan University of TechnologyWuhan 430070China Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices Hu-bei University of Arts and ScienceXiangyang 441053China

A novel aqueous Sn-S complex solution was applied as precursor to fabricate SnO2 electron selective layers (ESLs) for the hybrid perovskite solar cells (PSCs).The tin and sulfur powder were directly dissolved in a (NH4)2S water solution to form Sn-S *** depositon and annealing,the SnO2 film was formed,presenting as a low cost and enviromental friendly method for preparation of *** films showed excellent transmittance at visible wavelength ***,the method exhibited high compatibility for doping using Cu,Cd,Li,and Zn *** doping (0.05 M) in the as-prepared SnO2 ESL significantly improved perovskite solar cells (PSCs) *** highest PCE of 13.17% was achived with 15% enhancement compared to that of undoped SnO2 ESL ***4 modifications on SnO2 film improved photovoltaic performance to 14.45%,but resulted in the poor long-term stability,around 80% more degredation than that of PSCs based on Zn-doped SnO2 films.

关键词： perovskite solar cell aqueous solution SnO2 Sn-S complex electron selective layer

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Membrane catalysts eliminate trace pollutants

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Chem 2022年第6期8卷 1551-1553页

作者： Jing Li Xiao-Yu Yang Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials School of Chemistry and Chemical Engineering Wuhan University of Science and Technology Wuhan 430081 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing & Shenzhen Research Institute & Joint Laboratory for Marine Advanced Materials in Pilot National Laboratory for Marine Science and Technology (Qingdao) Wuhan University of Technology 122 Luoshi Road Wuhan 430070 China School of Engineering and Applied Sciences Harvard University Cambridge MA 02138 USA

The presence of residues in products generated by high-efficiency catalytic reactions is detrimental. In a recent work published in Nature Nanotechnology by Andrea Schäfer and colleagues, membrane catalysts are shown to promote processes while enhancing water purification by degradation of micropollutants via filtration-driven effective collision.

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Widely tunable optical properties via oxygen manipulation in an amorphous alloy

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Science China materials 2021年第9期64卷 2305-2312页

作者： Ying-qi Zhang Li-ying Zhou Sheng-ye Tao Yu-zhang Jiao Jin-feng Li Kai-ming Zheng Yuan-chao Hu Kai-xuan Fang Cheng Song Xiao-yan Zhong Limei Xu Ke-Fu Yao Zheng-jun Zhang Na Chen Key Laboratory for Advanced Materials Processing Technology(MOE) The State Key Laboratory of New Ceramics and Fine ProcessingSchool of Materials Science and EngineeringTsinghua UniversityBeijing 100084China International Center for Quantum Materials Peking UniversityBeijing 100084China Collaborative Innovation Center of Quantum Matter Beijing 100871China Institute of Materials China Academy of Engineering PhysicsMianyang 621907China Institute of Industrial Science University of Tokyo4-6-1 KomabaMeguro-kuTokyo 1538505Japan Key Laboratory for Advanced Materials(MOE) School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China National Center for Electron Microscopy in Beijing Key Laboratory of Advanced Materials(MOE)The State Key Laboratory of New Ceramics and Fine ProcessingSchool of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Department of Materials Science and Engineering City University of Hong KongTat Chee AvenueKowloonHong KongChina

The ability to widely tune the optical properties of amorphous alloys is highly desirable especially for their potential applications in optoelectronic *** this work,we demonstrate that introducing oxygen into an amorphous alloy system of Co-Fe-Ta-B enables the formation of various amorphous derivatives ranging from metals to semiconductors,and eventually to *** oxygencontaining amorphous derivatives gradually become transparent with the opened bandgaps,leading to a continuous increase in their optical ***,the reflective metal-type amorphous alloy and transparent insulator-type amorphous oxide of the system can be integrated together to realize the full-color tuning over the entire visible spectral *** provides a new way to develop large-area color coatings with high design flexibility and full-color *** envisage that the design concept proposed in this work is also applicable to many other amorphous alloy systems,from which all types of amorphous materials including alloys,semiconductors and insulators may be developed to show unprecedented optical functionalities.

关键词： amorphous alloy oxygen manipulation amorphous oxide optical properties

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Achieving Wideband Electromagnetic Wave Absorbing Performance for Pmma-Based Composites Foam by Designing the Alternating Directional (Ad) Microporous Structure

SSRN

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SSRN 2023年

作者： Zhou, Danfeng Yu, Zirui Yuan, Huan Luo, Guoqiang Hu, Ruofei Jiang, Xueliang Shen, Qiang Hubei Key Laboratory of Plasma Chemistry and New Materials School of Material Science and Engineering Wuhan Institute of Technology Hubei Wuhan430205 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China School of Automotive Engineering Wuhan University of Technology Wuhan430070 China Department of Food Science & Chemical Engineering Hubei University of Arts and Science Xiangyang441053 China

Good impedance matching and attenuation ability of electromagnetic wave absorbing (EMA) materials are required to broaden the effective absorbing bandwidth (EAB) and lower minimum reflection loss (RLmin), achieving high EMA performance. Here we report a PMMA- based composite foam with alternating and directional (AD) microporous structure with broadened EAB of 3.53 GHz (8.49-12.02 GHz) and lowers RLmin of -19.35 dB, was manufactured via the one-step physical constraint foaming technology. Structural studies reveal that the AD microporous structure can induce the CNTs oriented distribution to improve effective concentration of CNTs, achieving excellent impedance matching. Meanwhile, it can also generate a large number of parallel-plate capacitors among the multiple interfaces to promote interfacial polarization, including enhancement of multiple reflection and scattering of electromagnetic wave at the multiple interfaces, endowing composites foam with high attenuation ability. This study lays the foundation for rational design and synthesis of EMA materials for broadband EMA performance. © 2023, The Authors. All rights reserved.

关键词： Electromagnetic wave absorption

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Influence of Fe substitution at Al-site on the microstructure and thermophysical properties of garnet-type (Y0.4Er0.6)3Al5O12 ceramics

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Ceramics International 2025年

作者： Wang, Xuanli Wang, Jun Xie, Min Wang, Zhigang Zhang, Yonghe Song, Xiwen School of Materials Science and Engineering Inner Mongolia University of Science and Technology Baotou014010 China Inner Mongolia Key Laboratory of Advanced Ceramic Material and Devices Baotou014010 China Ministry of Education Baotou014010 China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing100084 China Inner Mongolia North Heavy Industry Group Co. Ltd. Baotou014010 China Department of Chemical Engineering Ordos Vocational College Ordos017000 China

In this study, a series of (Y0.4Er0.6)3(Al1-xFex)5O12 (x = 0, 0.2, 0.4, 0.6, 0.8 and 1.0) ceramics were prepared by solid phase synthesis. The effects of Fe doping on the phase structure, lattice occupancy, Raman shift, ionic valence state, micromorphology and thermophysical properties of the ceramics were systematically investigated. The results show that all the (Y0.4Er0.6)3(Al1-xFex)5O12 ceramics exhibit a single Y3Al5O12 phase and the valence state of iron is +3. With the increase of Fe doping concentration, both the lattice constant and cell volume gradually expand, which is attributed to the substitution of Al3+ (smaller ionic radius) by Fe3+ (larger ionic radius). This substitution induces lattice distortion that accelerates the sintering process, resulting in an increase in both ceramic density and grain size. In terms of thermophysical properties, significant improvements were observed compared to pure Y3Al5O12 and (Y0.4Er0.6)3Al5O12 ceramics. Specifically, thermal conductivity decreases, and the thermal expansion coefficient increases with higher Fe doping levels. The (Y0.4Er0.6)3(Al0.2Fe0.8)5O12 ceramic exhibits the lowest thermal conductivity (1.31 W/m·K at 1100 °C), approximately 11.5 % lower than that of (Y0.4Er0.6)3Al5O12 (1.48 W/m·K at 1100 °C). Additionally, (Y0.4Er0.6)3Fe5O12 ceramic demonstrates the highest coefficient of thermal expansion (11 × 10−6 K−1 at 1200 °C), which is around 36.3 % greater than that of (Y0.4Er0.6)3Al5O12 (8.07 × 10−6 K−1 at 1200 °C). © 2025

关键词： Sintering

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Strain manipulation of ferroelectric skyrmion bubbles in a freestanding PbTiO3 film: A phase field simulation

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Physical Review B 2022年第22期105卷 224101-224101页

作者： Yixuan Zhang Qian Li Houbing Huang Jiawang Hong Xueyun Wang School of Aerospace Engineering Beijing Institute of Technology Beijing 100081 China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing 100084 China Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing 100081 China

So far nanoscale topological polar structures have been mainly observed in ferroelectric superlattices, nanodots, and complex heterostructures, originating from the intricate interplay of built-in electric field, polarization, strain, and their gradient-related energies. However, solid substrates hinder the continuous strain manipulation of the ferroelectric topological textures. Recently, a breakthrough in fabricating freestanding films has demonstrated the possibility of continuous strain manipulation, but there has been little experimental or theoretical investigation of whether polar topological structures exist in freestanding films. Herein, by performing phase field simulation on (PbTiO3)20/(SrTiO3)10 freestanding bilayers, we observed the stabilized ferroelectric skyrmion bubbles in a ferroelectric layer. A thickness-dependent phase diagram indicates that the skyrmion bubbles exist when the ferroelectric layer is between eight and 30 unit cells. Meanwhile, we demonstrated that the uniaxial strain is an effective way to manipulate the skyrmion bubble in freestanding films, which not only induces consolidation and rearrangement of skyrmion bubbles, but also induces a phase transition from the topological skyrmion bubble state to a standard a1/a2 domain state. These results provide us guidance with a mechanical approach to control topological polar structures in freestanding films.

关键词： Electric polarization Ferroelectric domains Phase-field modeling

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