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Tunning the bandgap of MnO_(2)homojunction by building active high-index facet to achieve rapid electron transfer for enhanced photocatalytic sterilization

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Journal of materials science & technology 2024年第1期168卷 265-275页

作者： Tao Zhang Bo Li Chaofeng Wang Shuilin Wu Shengli Zhu Hui Jiang Yufeng Zheng Zhaoyang Li Zhenduo Cui Yu Zhang Paul K Chu Xiangmei Liu Biomedical Materials Engineering Research Center Hubei Key Laboratory of Polymer MaterialsMinistry-of-Education Key Laboratory for the Green Preparation and Application of Functional MaterialsSchool of Materials Science and Engineering Hubei UniversityWuhan 430062China School of Health Science&Biomedical Engineering Hebei University of TechnologyTianjin 300401China School of Materials Science&Engineering Peking UniversityBeijing 100871China School of Materials Science&Engineering the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of ChinaTianjin UniversityTianjin 300072China Department of Orthopedics Guangdong Provincial People’s HospitalGuangdong Academy of Medical SciencesGuangzhou 510080China Department of Physics Department of Materials Science and Engineering and Department of Biomedical EngineeringCity University of Hong KongHong Kong 999077China

Photocatalysis has been a research hotspot in recent years,and the design and modification of photocat-alysts have been the key *** methods for designing photocatalysts,including constructing heterojunctions and homojunctions,have been developed on the basis of *** this study,two homojunctions of manganese dioxide(MnO_(2)),including a high-index crystal plane homojunction and a general homojunction,are prepared using a stepwise hydrothermal *** a capping agent,the high-index crystal surface of the MnO_(2)is *** is found that the electron transport efficiency be-tween the two components of the homojunction with high-index planes is higher and the adsorption capacity of the oxygen is stronger,which leads to higher photocatalytic *** addition,the newly designed high-index homojunction is used for the treatment of bacterial infections,and it kills Staphy-lococcus aureus(***)and Escherichia coli(***)at rates of 99.95%±0.04%and 99.31%±0.25%,*** also has excellent therapeutic effects on mouse wounds,which implies superb practical application *** work provides a new strategy for the improved design of homojunctions and the application of photocatalytic materials.

关键词： Photocatalysis Homojunction Bandgap High-index facet Antibacterial

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Graphene oxide as a hole extraction layer loaded on BiVO_(4)photoanode for highly efficient photoelectrochemical water splitting

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Rare Metals 2022年第11期41卷 3795-3802页

作者： Min-Li Guo Shi-Peng Wan Cao-Long Li Kan Zhang Key Laboratory of Biomedical Functional Materials School of ScienceChina Pharmaceutical UniversityNanjing211198China Institute of Optoelectronics and Nanomaterials MIIT Key Laboratory of Advanced Display Material and DevicesCollege of Materials Science and EngineeringNanjing University of Science and TechnologyNanjing210094China

The tailor-made oxygen evolution catalysts(OECs)paired with photoanodes offer a path to promote water oxidation kinetics;however,the unsatisfied interface between OECs and photoanode sets a barrier for efficient charge ***,a graphene oxide(GO)layer to promote the charge transfer from BiVO_(4)(BVO)to NiOOH OEC is *** is found that GO layer inserted between BVO and NiOOH can not only serve as hole extraction layer due to its hole storage capability,but also improve the ***,the rationally designed NiOOH/GO/BVO photoanode achieves a photocurrent density of 3.81 mA·cm^(-2)at 1.23 V(*** hydrogen electrode(RHE)),which is 3.85 times as high as that of bare *** work opens up low-cost auxiliary materials for enhancing photoelectrochemical water splitting.

关键词： BiVO_(4) Water splitting Charge extraction Oxygen evolution catalyst Graphene oxide

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Research progress on lithium extraction from salt-lake brine

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Journal of Industrial and Engineering Chemistry 2025年 148卷 92-108页

作者： Deng, Yi Chai, Guoliang Zhang, Yinghe Carbon Materials Research and Comprehensive Application Shenzhen Key Laboratory of Advanced Functional Carbon Materials Research and Comprehensive Application School of Science Harbin Institute of Technology Shenzhen Shenzhen518055 China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fujian Fuzhou350002 China

Extensive lithium reserves in aqueous environments such as salt-lake brines, subterranean brines, and seawater underscore the importance of brine extraction in current research. Addressing the lack of a systematic framework for categorizing brine extraction technologies, this review presents a classification based on phase interactions within brines, specifically liquid–liquid and liquid–solid interfaces. The liquid–liquid system includes precipitation methods using carbonates, aluminates, and phosphates, along with extraction techniques involving β-diketones, crown ethers, organophosphorus compounds, and ionic liquids. The liquid–solid system focuses on lithium-ion transport and material interactions, encompassing transmembrane transport mechanisms (e.g., nanofiltration, liquid membranes, electrodialysis), adsorption embedding (with aluminum, manganese, and titanium-based adsorbents, and electrochemical ion deintercalation), and adsorption adherence (featuring natural ores, ion-exchange resins, and carbon-based materials). The review outlines the core principles of these methods and highlights cutting-edge technologies in brine lithium extraction. By integrating various techniques, these advancements aim to enhance efficiency, cost-effectiveness, and environmental sustainability, significantly improving the feasibility of lithium extraction from brines and supporting the sustainable development of the global lithium supply chain. © 2025 The Korean Society of Industrial and Engineering Chemistry

关键词： Lakes

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Ultrafast micro/nano-manufacturing of metastable materials for energy

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National science Review 2024年第4期11卷 283-298页

作者： Xiaoya Cui Yanchang Liu Yanan Chen School of Materials Science and Engineering Key Laboratory of Advanced Ceramics and Machining Technology(Ministry of Education) and Tianjin Key Laboratory of Composite and Functional MaterialsTianjin University Ministry of Education Key Laboratory of Protein Sciences School of Life SciencesTsinghua University

The structural engineering of metastable nanomaterials with abundant defects has attracted much attention in energy-related fields. The high-temperature shock(HTS) technique, as a rapidly developing and advanced synthesis strategy, offers significant potential for the rational design and fabrication of high-quality nanocatalysts in an ultrafast, scalable, controllable and eco-friendly way. In this review, we provide an overview of various metastable micro-and nanomaterials synthesized via HTS, including single metallic and bimetallic nanostructures, high entropy alloys, metal compounds(e.g. metal oxides) and carbon nanomaterials. Note that HTS provides a new research dimension for nanostructures, i.e. kinetic modulation. Furthermore, we summarize the application of HTS—as supporting films for transmission electron microscopy grids—in the structural engineering of 2D materials, which is vital for the direct imaging of metastable materials. Finally, we discuss the potential future applications of high-throughput and liquid-phase HTS strategies for non-equilibrium micro/nano-manufacturing beyond energy-related *** is believed that this emerging research field will bring new opportunities to the development of nanoscience and nanotechnology in both fundamental and practical aspects.

关键词： high-temperature shock technique defect engineering metastable phase kinetic modulation non-equilibrium micro/nano-manufacturing

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Synthesized robust and thermal stable zirconia aerogel by using N, N-dimethylformamide as a drying inhibitor 4

Synthesized robust and thermal stable zirconia aerogel by us...

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2023 4th International Conference on Material Chemistry and composite materials, MCCM 2023

作者： Hou, Sifan Sun, Yinjie Zhang, Kai Li, Guoqi Fan, Jinpeng Institute of Advanced Structural Technology Beijing Institute of Technology Beijing100081 China Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and Structures Beijing Institute of Technology Beijing10081 China Aerospace Research Institute of Materials and Processing Technology Beijing100076 China

N, N-dimethylformamide (DMF) is used as a drying inhibitor to prepare ZrO2 aerogels. The properties were investigated and the result reflected that adding DMF can get bulk aerogels with better mechanical strength (0.51 MPa), lower density (0.38 g/cm3), lower thermal conductivity (0.024 W·m-1·K-1), and higher specific surface area (123.46 m2/g) after heat treatment. Its performance as a drying inhibitor is better than that of formamide (FA). It indicates that DMF can be used as a drying inhibitor to prepare zirconia aerogel with excellent thermal stability and mechanical strength. © Published under licence by IOP Publishing Ltd.

关键词： Aerogels

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Rechargeable Metasurfaces for Dynamic Color Display Based on a Compositional and Mechanical Dual-Altered Mechanism

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Research 2023年第1期2022卷 367-377页

作者： Le Yang Xiaorong Hong Jiafang Li Chang-Yin Ji Yu Han Shanshan Chen Hanqing Jiang Wei-Li Song Hao-Sen Chen Daining Fang Beijing Key Laboratory of Lightweight Multi-Functional Composite Materials and Structures Institute of Advanced Structure TechnologyBeijing Institute of TechnologyBeijing 100081China Key Lab of Advanced Optoelectronic Quantum Architecture and Measurement(Ministry of Education) Beijing Key Lab of Nanophotonics e Ultrafine Optoelectronic SystemsSchool of PhysicsBeijing Institute of TechnologyBeijing 100081China School of Engineering Westlake UniversityHangzhou 310024China

Dynamic color display can be realized by tunable optical metasurfaces based on the compositional or structural ***,it is still a challenge to realize the efficient modulation by a single-field ***,we report a novel compositional and mechanical dual-altered rechargeable metasurface for reversible and broadband optical reconfiguration in both visible and near-infrared wavelength *** employing a simple fabrication and integration strategy,the continuous optical reconfiguration is manipulated through an electro-chemo-mechanical coupled process in a lithium ion battery,where lithiation and delithiation processes occur dynamically under a low electric voltage(<1.5 V).By controlling the phase transformation from Si to Li,Si,both structural morphology and optical scattering could be rapidly and dramatically tailored within 30s,exhibiting high-contrast colorization and decolorization in a large-area nanofilm and showing long cyclic *** wide-angle reconfiguration of high-resolution structural colors in bowtie metasurfaces is demonstrated from anomalous *** results provide a multifield mechanism for reconfigurable photonic devices,and the new platform can be introduced to the multidimensional information encryption and storage.

关键词： scattering figuration Dynamic

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Reversible-gel-assisted, ambient-pressure-dried,multifunctional, flame-retardant biomass aerogels with smart high-strength-elasticity transformation

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National science Review 2024年第11期11卷 203-214页

作者： Ting Wang Ying-Jiao Zhan Ming-Jun Chen Lei He Wen-Li An Shimei Xu Wei Wang Jian-Jun Shi Hai-Bo Zhao Yu-Zhong Wang College of Chemistry The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE)National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan)State Key Laboratory of Polymer Materials Engineering Sichuan University Green Preparation and Recycling Laboratory of Functional Polymeric Materials College of ScienceXihua University Science and Technology on Advanced Functional Composite Laboratory Aerospace Research Institute of Materials& Processing Technology

Bio-based aerogels, which are poised as compelling thermal insulators, demand intricate synthesis procedures and have limited durability under harsh conditions. The integration of smart stimuli–response transitions in biomass aerogels holds promise as a solution, yet remains a challenge. Here, we introduce a pioneering strategy that employs reversible-gel-assisted ambient-pressure drying without organic solvents to craft multifunctional bio-based aerogels. By exploiting the thermally reversible gelling propensity of select biomasses, we anchor emulsified bubbles within cross-linked hydrogels, circumventing surface tension issues during mild drying. The resultant aerogels feature a robust porous matrix that is imbued with stable bubbles, yielding low thermal conductivity, high flame retardancy and robust resistance to diverse *** innovative approach facilitates a paradigm shift in intelligent fire protection in which aerogels transition from robust to flexible in response to water stimuli, effectively shielding against thermal hazards and external forces. This work opens up a facile, eco-friendly and mild way to fabricate advanced biomass aerogels with stimuli-responsive transformation.

关键词： biomass aerogel ambient-pressure drying flame retardance solvation-controlled elastification harsh-condition resistance

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Boosting solar water oxidation activity of BiVO_(4) photoanode through an efficient in-situ selective surface cation exchange strategy

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Journal of Energy Chemistry 2022年第5期31卷 49-59页

作者： Kai Song Fang He Ergang Zhou Lin Wang Huilin Hou Weiyou Yang School of Materials Science and Engineering Tianjin UniversityTianjin 300350China Tianjin Key Laboratory of Composite and Functional Materials Tianjin UniversityTianjin 300350China Institute of Micro/Nano Materials and Devices Ningbo University of TechnologyNingbo 315211ZhejiangChina

The sluggish kinetics for water oxidation is recognized as one of the major problems for the unsatisfied photoelectrochemical(PEC) performance. Herein, we developed a feasible strategy based on in-situ selective surface cation exchange, for activating surface water oxidation reactivity toward boosted PEC water oxidation of BiVO_(4) photoanodes with fundamentally improved surface charge transfer. The asconstructed Co/BiVO_(4) photoanodes exhibit 2.6 times increase in photocurrent density with superior stability, in comparison to those of pristine counterpart. Moreover, the faradaic efficiency of as-fabricated photoanode can be up to ~ 95% at 1.23 V(vs. RHE). The unique selective replacement of Bi by Co on the surface could modify the electronic structure of BiVO_(4) with reduced energy barrier of the deprotonation of OH^(+) to O, thus favoring the overall excellent PEC performance of Co/BiVO_(4) photoanode.

关键词： Cation exchange BiVO4 Photoelectrochemical Water oxidation

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Metal-organic framework-derive d carbon-base d composites for electromagnetic wave absorption:Dimension design and morphology regulation

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Journal of materials science & technology 2023年第1期132卷 223-251页

作者： Yujie Ren Xin Wang Jiaxin Ma Qi Zheng Lianjun Wang Wan Jiang State Key Laboratory for Modification of Chemical Fibers and Polymer Materials and College of Materials Science and Engineering Donghua UniversityShanghai 201620China Institute of Functional Materials Donghua UniversityShanghai 201620China Engineering Research Center of Advanced Glasses Manufacturing Technology Ministry of EducationDonghua UniversityShanghai 201620China

Developing highly efficient microwave absorbing materials(MAMs)to ameliorate the electromagnetic(EM)response and facilitate energy absorption is crucial in both the civil and military ***-organic framework(MOF)derived nanoporous carbon composites have emerged as advanced MAMs ow-ing to their rich porosity,tunable compositions,facile functionalization,and morphology ***-gether with the flourishing development of composition-tuning strategy,the rational dimension design and elaborate control over the architectures have also evolved into an effective approach to regulating their EM ***,we provide a comprehensive review of the recent advances in using di-mension and morphology modulation to adjust the microwave attenuation capacities for MOF-derived carbon *** underlying design rules and unique advantages for the MAMs of various dimen-sions were discussed with the selection of representative work,providing general concepts and insight on how to efficiently tune the ***,the fundamental dimension-morphology-function relationship was also ***,the challenges and perspectives of dimension design and mor-phology control over MOF-derived MAMs were also presented.

关键词： MOF-derived carbon composites Electromagnetic microwave absorption Dimension design Morphology regulation

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Bimetal nanoparticles hybridized with carbon nanotube boosting bifunctional oxygen electrocatalytic performance

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Rare Metals 2022年第8期41卷 2616-2623页

作者： Chen Sun Yong-Jie Zhao Xuan-Yi Yuan Jing-Bo Li Hai-Bo Jin Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing100081China Beijing Key Laboratory of Opto-Electronic Functional Materials&Micro-Nano Devices Department of PhysicsRenmin University of ChinaBeijing100872China

Developing bifunctional oxygen catalysts with high efficiency and low cost to replace platinum-group metal catalysts commonly utilized in metal-air batteries is critically *** this article,a convenient method to synthesis NiFe nanoparticles hybridized with N-doped carbon nanotube(NiFe@N-CNTs)is *** performance analysis indicates that Ni_(x)Fc_(1-x)@N-CNTs offers favorable oxygen reduction reaction(ORR)kinetics(onset potential(E_(onset))is 0.87 V and half-wave potential(E_(1/2))is0.84 V),together with excellent oxygen evolution reaction(OER)performance(an overpotential of 270 mV to drive10 mA·cm^(-2)).Contributed by the synergetic effect between NiFe alloy and N-CNTs,when being utilized as air cathode,rechargeable Zn-air batteries present superior cycling stability for over 150 *** research provides a universal strategy to synthesize the hybrids of intertwined carbon nanotube matrix loaded with alloy nanoparticles.

关键词： NiFe alloy Oxygen evolution reaction(OER) Oxygen reduction reaction(ORR) Zn-air batteries

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