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Metal‐organic framework‐derived multifunctional photocatalysts

Chinese Journal of Catalysis 2022年第4期43卷 971-1000页

作者： Yaping Zhang Jixiang Xu Jie Zhou Lei Wang State Key Laboratory Base of Eco‐chemical Engineering Qingdao University of Science and TechnologyQingdao 266042ShandongChina College of Chemistry and Molecular Engineering Qingdao University of Science&TechnologyQingdao 266042ShandongChina College of Environment and Safety Engineering Qingdao University of Science and TechnologyQingdao 266042ShandongChina

Metal‐organic framework(MOF)‐derived nanomaterials have attracted widespread attention,because the excellent features,such as high surface area,porosity and tunable properties are inherited from ***,the derivatives avoid the poor conductivity and stability of ***‐derived nanomaterials can easily be regulated by a specific selection of metal nodes and organic linkers,resulting in multifunctionality in *** derivatives can be used not only as semiconductor photocatalysts,but also as co‐catalysts for photocatalytic hydrogen evolution,CO_(2) reduction,pollutants degradation,*** review focuses on the multifunctional applications of MOF derivatives in the field of *** researches in recent years are analyzed and summarized from the aspects of preparation,modification and application of MOF *** the end of the review,the development and challenges of MOF derivatives applied in photocatalysis in the future are put forward,in order to provide more references for further research in this field and bring new inspiration.

关键词： MOF‐derived nanomaterials Semiconductor photocatalyst Cocatalyst H_(2)evolution CO_(2)reduction Pollution degradation

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Monitoring the silk fabrics at different process stages by using FLIM 4

Monitoring the silk fabrics at different process stages by u...

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4th International Conference on Laser, Optics, and Optoelectronic technology, LOPET 2024

作者： Li, Changjiang Deng, Yifeng Xiao, Zeyu Wu, Zipei Zhu, Lei Lin, Junxiong Peng, Xiao Yan, Wei Qu, Junle State Key Laboratory of Radio Frequency Heterogeneous Integration Shenzhen University Shenzhen518060 China College of Physics and Optoelectronic Engineering Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province Shenzhen University Shenzhen518060 China Engineering Research Center for Eco-Dyeing and Finishing of Textiles Ministry of Education Zhejiang Sci-Tech University Hangzhou310018 China Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of Education Zhejiang Sci-Tech University Hangzhou310018 China College of Textile Science and Engineering International Institute of Silk Zhejiang Sci-Tech University Hangzhou310018 China School of Medical Engineering and Technology Xinjiang Medical University Urumqi810017 China

ISBN: (纸本)9781510681903

Mulberry silk fabrics are very popular due to their soft lustre, comfortable handle and smooth texture. Currently, the traditional textile testing methods are deficient to provide a fast and sensitive directional detection way or quantitative characterization data to study different process stages of the textile. Here, we used crepe de chine as silk samples for microscopy detection. Both confocal fluorescence microscopy and fluorescence lifetime imaging microscopy (FLIM) methods have been applied into observing samples at different process stages to obtain their surface morphology and fluorescence lifetime distribution. The confocal results showed that the samples had autofluorescence under excitation at several wavelengths. The fluorescent intensities of different samples from a series of process stages of the silk manufacture or the air-dried pure sericin were obtained under the 640 nm excitation, which was used in the following FLIM experiments. FLIM results showed that in undyed group, the lifetime values of the raw silk fabric were around 2400 ps. The lifetime of the sample with partial sericin left were similar to those in the raw silk fabric while the intensities were decreased. The optical properties of the dyed fabrics were similar to the undyed group, but their lifetime values were lower than those of the undyed group, suggesting that the silk fabrics had different optical properties due to the factors including the residual amount of sericin and dyeing condition. Briefly, FLIM can provide a non-destructive method for real-time quantitative investigation of the silk fabrics at different process stages, providing information for parameters such as the residual amount of sericin. © 2024 SPIE.

关键词： Fluorescence imaging

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Dramatic Difference Between Cu_(20)H_(8)and Cu_(20)H_(9)Clusters in Catalysis

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CCS Chemistry 2024年第6期6卷 1581-1590页

作者： Chun-Yu Liu Tong-Yu Liu Zong-Jie Guan Song Wang Yuan-Yuan Dong Feng Hu De-en Jiang Quan-Ming Wang Department of Chemistry Engineering Research Center of Advanced Rare Earth Materials(Ministry of Education)Tsinghua UniversityBeijing 100084 Jiangsu Engineering Research Centre for Digital Textile Inkjet Printing Key Laboratory of Eco-Textile Jiangnan UniversityMinistry of EducationWuxiJiangsu 214122 Department of Chemical and Biomolecular Engineering Vanderbilt UniversityNashvilleTennessee 37235 Department of Chemistry Vanderbilt UniversityNashvilleTennessee 37235 College of Chemistry and Chemical Engineering Hunan UniversityChangsha 410082 Hefei National Research Center for Physical Sciences at the Microscale School of Chemistry and Materials ScienceUniversity of Science and Technology of ChinaHefeiAnhui 230026

Sensitivity to structure and composition is very challenging to establish in nanocatalysis due to inadequate definition of structures that are very close in *** synthesized a pair of atomically precise copper clusters that are very close in composition,[Cu_(20)H_(9)(Tf-dpf)_(10)]·BF4(Cu_(20)H_(9))and[Cu_(20)H_(8)(Tf-dpf)_(10)]·(BF_(4))_(2)(Cu_(20)H_(8)),by using a pyridyl-functionalized flexible amidinate ligand,N,N′-di(5-trifluoromethyl-2-pyridyl)*** one-hydride difference in their composition leads to significant variation in geometric and electronic structures and,consequently,distinctly different optical and catalytic ***_(20)H_(8)exhibits 25 times higher catalytic activity than Cu_(20)H_(9)(96.7%vs 3.7%in yield)in the selective hydrogenation of anα,β-unsaturated aldehyde(cinnamaldehyde)to saturated aldehyde(3-phenylpropanal).Electrospray ionization mass spectrometry combined with density functional theory calculations reveal that the greater ease of dissociation of one Tf-dpf ligand compared to Cu_(20)H_(8)is the key to its higher *** work demonstrates a clear case of structure and composition sensitivity in nanocatalysis and that one hydride,out of∼330 atoms in the nanoclusters,can make a huge difference in the catalytic *** insights will be useful in the design and synthesis of atomically precise nanocatalysts.

关键词： copper cluster hydride amidinate ligand structural transformation hydrogenation catalysis

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Biodegradable Materials as Nanocarriers for Drugs and Nutrients

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Journal of Renewable Materials 2021年第7期9卷 1189-1211页

作者： Xingran Kou Qixuan Zhao Wenwen Xu Zuobing Xiao Yunwei Niu Kai Wang Key Laboratory of Textile Science&Technology Ministry of EducationCollege of TextilesDonghua UniversityShanghai201620China School of Perfume and Aroma Technology Shanghai Institute of TechnologyShanghai201418China R&D Center of China Tobacco Yunnan Industrial Co. Ltd.Kunming650231China

Several important drugs and nutritional supplements are limited by their lack of *** display unique beneficial properties that might help improve the bioavailability of drugs and nutritional supple***,nanomaterials produced from synthetic polymers and metals may have similar difficulties with bioavailability and *** occurring biopolymers are biodegradable and non-toxic and are adaptable to the synthesis of *** and other substances can be encapsulated or embedded in such particles with an increase in *** search for biodegradable nanomaterials is an active research *** review summarizes the research on nanocrystalline cellulose,starch,lignin,and other biological and environment-friendly nanocomposites which are commonly used as nanocarriers for drugs and ***,prospects for the use of biodegradable nanomaterials in targeted therapy,including environmentally responsive therapy,are discussed.

关键词： Nanomaterials biodegradation classification application

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Evaporation-Driven Hydrovoltaic Energy Harvesting with Surface-Modified Carbonized Silk Fabrics: Mechanisms and Wearable Applications

SSRN

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SSRN 2025年

作者： Guo, Xue Wei, Qufu Zhang, Yuxin Liao, Shiqin Hao, Yi Lv, Pengfei Key Laboratory of Eco-textiles Ministry of Education School of Textile Science and Engineering Jiangnan University Wuxi214122 China Jiangxi Center for Modern Apparel Engineering and Technology Jiangxi Institute of Fashion Technology Nanchang330201 China

Evaporation-driven hydrovoltaic energy harvesting offers a sustainable and innovative solution for wearable energy applications. Herein, we report an optimized hydrovoltaic generator based on acid-treated carbonized silk fabrics (ACSF), further functionalized with sodium p-styrene sulfonate (SSS) via in-situ polymerization. The incorporation of oxygen-containing groups (e.g., –COOH and –OH) and sulfonic acid groups (–SO₃H) significantly enhanced the hydrophilicity, surface charge density, and ion transport efficiency of the fabrics. As a result, the optimized PACSF achieved an open-circuit voltage of 288 mV and a short-circuit current of 35 μA under ambient evaporation conditions. The evaporation-driven mechanism was systematically investigated, demonstrating the critical role of surface functionalization in modulating water transport dynamics and charge transfer. PACSF exhibited excellent durability, scalability, and tunable electrical output through serial and parallel connections, enabling practical applications in low-power wearable electronics. This work provides insights into the design of hydrovoltaic materials and their potential for integration into wearable energy systems. © 2025, The Authors. All rights reserved.

关键词： Energy harvesting

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Diverse molecular compositions of dissolved organic matter derived from different composts using ESI FT-ICR MS

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Journal of Environmental sciences 2021年第1期33卷 80-89页

作者： Minru Liu Yunkai Tan Kejing Fang Changya Chen Zhihua Tang Xiaoming Liu Zhen Yu Guangdong Prouincial Key Laboratory of New and Renewable Energy Research and Development Cuangzhou Institute of Energy ConversionChinese Academy of SciencesGuangzhou 510640China CAs Key Laboratory of Renewable Energy Guangzhou Institute of Energy ConversionChinese Academy of SciencesGuangzhou 510640China Hunan Prouincial Key Laboratory of Fine Ceramics and Powder Materials School of Materials and Enuironmental EngineeringHunan University of HumanitiesScience and TechnologyLoudi417000China Guangdong Key Laboratory of Integrated Agro-enuironmental Pollution Control and Management Cuangdong Institute of Eco-environmental Science&TechnologyGuangzhou 510650China

Dissolved organic matter(DOM)derived from various composts can promote significant changes of soil ***,little is known about the DOM compositions and their similarities and differences at the molecular *** this study,the molecular compositions of DOM derived from kitchen waste compost(KWC),green waste compost(GWC),manure waste compost(MWC),and sewage sludge compost(SSC)were characterized by electrospray ionization coupled with Fourier transform ion cyclotron resonance mass spectrometry(ESI FT-ICR MS).The molecular formulas were classified into four subcategories:CHO,CHON,CHOS,and *** KWC,MWC,and SSC DOM represented the highest fraction(35.8%-47.4%)of CHON subcategory,while the GWC DOM represented the highest fraction(68.4%)of CHO *** GWC DOM was recognized as the nitrogen-and sulfurdeficient compounds that were less saturated,more aromatic,and more oxidized compared with other *** analysis of the oxygen,nitrogen-containing(N-containing),and sulfur-containing(S-containing)functional groups in the four subcategories revealed higher organic molecular *** of the similarities and differences of the four samples revealed 22.8%ubiquitous formulas and 17.4%,11.1%,10.7%,and 6.3%unique formulas of GWC,KWC,SSC,and MWC DOM,respectively,suggesting a large proportion of ubiquitous DOM as well as unique,source-specific molecular *** findings presented herein provide new insight into the molecular characterization of DOM derived from various composts and demonstrated the potential role of these different compounds for agricultural utilization.

关键词： Molecular characterization Dissolved organic matter Compost ESI FT-ICR MS

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Stable Li storage in micron-sized SiO_(x) particles with rigid-flexible coating

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Journal of Energy Chemistry 2022年第1期31卷 309-314,I0009页

作者： Ming-Yan Yan Zhu Liu Zhuo-Ya Lu Lin-Bo Huang Ke-Cheng Jiang Hong-Liang Li Sen Xin Quan Xu Yu-Guo Guo CAS Key Laboratory of Molecular Nanostructure and Nanotechnology CAS Research/Education Center for Excellence in Molecular SciencesBeijing National Laboratory for Molecular Sciences(BNLMS)Institute of ChemistryChinese Academy of Sciences(CAS)Beijing 100190China College of Materials Science and Engineering State Key Laboratory of Biopolysaccharide Fiber Forming and Eco-TextileQingdao UniversityQingdao 266071ShandongChina Beijing IAmetal New Energy Technology Co. LtdBeijing 100190China Dongguan TAFEL New Energy Technology Co. LtdDonggiian 523000.GuangdongChina

Micrometre-sized electrode materials have distinct advantages for battery applications in terms of energy density,processability,safety and *** the silicon monoxide anode that undergoes electrochemical alloying reaction with Li,the Li(de)intercalation by micron-sized active particles usually accompanies with a large volume variation,which pulverizes the particle structure and leads to rapidly faded storage *** this work,we proposed to stabilize the electrochemistry *** of the micron-SiO_(x) anode by forming a rigid-flexible bi-layer coati ng on the particle *** coati ng consists of pyrolysis carbon as the inner layer and polydopamine as the outer *** the inner layer guarantees high structural rigidity at particle surface and provides efficient pathway for electron conduction,the outer layer shows high flexibility for maintaining the integrity of micrometre-sized particles against drastic volume variation,and together they facilitate formation of stable solid electrolyte interface on the SiO_(x) particles.A composite an ode prepared by mixing the coated micron-SiOx with graphite delivered improved Li storage performance,and promised a high-capacity,long-life LiFePO_(4)/SiO_(x)-graphite pouch *** strategy provides a general and feasible solution for building high-energy rechargeable batteries from micrometre-sized electrode materials with significant volume variation.

关键词： Lithium-ion batteries Anodes Micron-SiOx Rigid and flexible coating

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Mxene@Cnf/Peg Porous Composite Materials for Absorption-Dominated Electromagnetic Interference Shielding Effect

SSRN

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SSRN 2024年

作者： Tang, Junjie Zuo, Tongcheng Feng, Wanqi Wang, Wei Yu, Dan National Engineering Research Center for Dyeing and Finishing of Textiles Key Laboratory of Science and Technology of Eco-Textile College of Chemistry and Chemical Engineering Ministry of Education Donghua University Shanghai201620 China

The development of absorption-dominated electromagnetic interference shielding materials holds significant research potential, yet achieving efficient electromagnetic shielding absorption capacity through simplified and convenient procedures remains a considerable challenge. Herein, a porous composite material prepared by polyethylene glycol diacrylate (PEGDA) and pentaerythritol tetrakis(3-mercapto-propionate) (PETMP) by click chemistry is proposed, following with the loading of MXene/CNF onto the surface of the composite materials by coating. In this study, the influence of sample thickness on the absorption and reflection properties is discussed. The hypothesis deductive method proves that the sample can be analyzed according to multiple transmission line models. Benefit from the excellent electrical conductivity of MXene/CNF with the absorptive ability of the polymer and the Salisbury screen effect, this composite material achieves an ultra-high electromagnetic shielding effectiveness(EMI SE) of 60 dB and an absorption coefficient of 92% at 34 dB with the use of less than 0.3 wt % of conductive filler. © 2024, The Authors. All rights reserved.

关键词： Composite materials

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Cooperative effect between copper species and oxygen vacancy in Ce_(0.7−x)Zr_(x)Cu_(0.3)O_(2) catalysts for carbon monoxide oxidation

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Frontiers of Chemical science and Engineering 2021年第6期15卷 1524-1536页

作者： Shan Wang Xuelian Xu Ping Xiao Junjiang Zhu Xinying Liu Institute for the Development of Energy for African Sustainability College of ScienceEngineering and TechnologyUniversity of South AfricaJohannesburg1710South Africa Hubei Key Laboratory of Biomass Fibers and Eco-dyeing&Finishing College of Chemistry and Chemical EngineeringWuhan Textile UniversityWuhan430200China

The effects of Zr doping on the existence of Cu and the catalytic performance of Ce_(0.7−x)Zr_(x)Cu_(0.3)O_(2)for CO oxidation were *** characterization results showed that all samples have a cubic structure,and a small amount of Zr doping facilitates Cu^(2+) ions entering the CeO2 lattice,but excessive Zr doping leads to the formation of surface CuO crystals ***,the number of oxygen vacancies caused by the Cu^(2+) entering the lattice(e.g.,Cu^(2+)-□-Ce^(4+);□:oxygen vacancy),and the amount of reducible copper species caused by CuO crystals,varies with the Zr *** CO oxidation tests indicated that the oxygen vacancy and the reducible copper species were the adsorption and activation sites of O_(2)and CO,respectively,and the cooperative effects between them accounted for the high CO oxidation ***,the samples x=0.1 and 0.3,which possessed the most oxygen vacancy or reducible copper species,showed the best activity for CO oxidation,with full CO conversion obtained at 110℃.The catalyst is also stable and has good resistance to water during the reaction.

关键词： Ce-Zr-Cu-O CO oxidation reducible copper species oxygen vacancy cooperative effect

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Advanced Flexible Carbon‑Based Current Collector for Zinc Storage

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Advanced Fiber Materials 2022年第6期4卷 1500-1510页

作者： Hao Jia Minghui Qiu Chunxia Tang Hongqi Liu Jinlin Xu Benjamin Tawiah Shou‑xiang Jiang Xiangwu Zhang Key Laboratory of Eco‑Textiles Ministry of EducationJiangnan UniversityWuxiJiangsuPeople’s Republic of China Institute of Textiles and Clothing The Hong Kong Polytechnic UniversityHong KongPeople’s Republic of China Department of Industrial Art(Textiles) Kwame Nkrumah University of Science and TechnologyKumasiGhana Fiber and Polymer Science Program Department of Textile EngineeringChemistry and ScienceWilson College of TextilesNorth Carolina State UniversityRaleighNC 27695‑8301USA

Carbon cloth(CC)-based electrodes have attracted extensive attention for next-generation wearable energy-storage devices due to their excellent electrical conductivity and mechanical ***,the application of conventional CC-based electrodes for zinc(Zn)storage severely hinders Zn ion transport and induces deleterious Zn dendrite growth,resulting in poor electrochemical ***,a novel oxygen plasma-treated carbon cloth(OPCC)is rationally designed as a current collector for flexible hybrid Zn ion supercapacitors(ZISs).The modified interface of OPCC with abundant oxygenated groups enables enhanced electrolyte wettability and uniform superficial electric field distribution.A prolonged working lifespan for Zn electrodeposition is achieved by the OPCC due to the improved interfacial kinetics and homogenized ion *** as-prepared hybrid ZIS also delivers excellent cycling endurance(98.5%capacity retention for 1500 cycles)with outstanding operation stability under various extreme *** facile surface modification strategy provides a new way for developing future flexible electrodes for wearable electronic products.

关键词： Zinc ion supercapacitor Carbon cloth Oxygen plasma treatment Interface kinetics

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