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Frontiers of materials Science 2021年第1期15卷 166-175页

作者： Jinxing WANG Fang YU Zhenzhen GUO Lei YAN Xianbao WANG key laboratory for green preparation and application of functional materials(ministry of education) Hubei Key Laboratory of Polymer MaterialsSchool of Materials Science and EngineeringHubei UniversityWuhan 430062China

Proton exchange membrane fuel cells(PEMFCs)are considered as one of the most effective technologies to resolve environmental problems and energy crisis for future automotive applications[1-4].The direct methanol fuel cell(DMFC)[5-6]is a new type of PEMFC using methanol as fuel[7].Because of its higher energy density and conversion efficiency,methanol can be used as direct fuel at a relatively lower operating temperature[8]with portable great potential in equipment and transportation utilization.Therefore,developing DMFCs that use methanol aqueous solution or steam methanol as fuel is a good choice to solve energy problems[9].

关键词： methanol zeolite compound

preparation of porous polyamide 6(PA6)membrane with copper oxide(CuO)nanoparticles selectively localized at the wall of the pores via reactive extrusion

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Nano materials Science 2022年第2期4卷 169-177页

作者： Tianqi Liang Jie Liu Zhaoyang Wei Dean Shi Hubei Collaborative Innovation Center for Advanced Organic Chemical materials Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional MaterialsHubei Key Laboratory of Polymer MaterialsSchool of Materials Science and EngineeringHubei UniversityWuhan430062PR China

In this study,CuO nanoparticles are pre-modified with styrene-maleic anhydride copolymers(SMAs)of different molecular weights and MAH contents.Then the pre-modified CuO nanoparticles(CuO-SMAs)are added to the PA6/SEBS(Styrene Ethylene Butylene Styrene copolymer)(40/60 wt/wt)polymer blends with a co-continuous morphology.When SMA3(MAH=8 wt%,M_(n)=250000 g/mol)is used to modify CuO nanoparticles,and the grafting degree of SMA3 on the surface of CuO reaches 2.74 wt%,90.71%of the added mCuO-SMA3 nanoparticles can be located at the interface of PA6 and SEBS.A porous PA6 membrane with CuO nanoparticles located at the pore walls can be obtained after the SEBS phase is etched with xylene.The catalytic reaction velocity constant(k)for the reduction of p-nitrophenol in NaBH_(4)solutions with the PA6/mCuO-SMA3 porous membrane can reach 1.0040 min^(-1).This work provides a feasible and straightforward method for the preparation of porous polymer membranes with functional nanoparticles located at the wall of the pores.

关键词： Co-continuous CuO nanoparticles Selective distribution Porous PA6 membrane Catalytic performance

Simple and Ultrahigh Efficient Superhydrophilic Polydopamine-coated TiO_(2) Cotton for Oil-water Separation

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Journal of Bionic Engineering 2023年第3期20卷 900-909页

作者： Xin Zhong Zhiguang Guo ministry of education key laboratory for the green preparation and application of functional materials Hubei UniversityWuhan430062China State key laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou730000China

Oil–water mixing has brought many problems to a society, and it is of great significance to develop a simple, convenient, efficient, and durable separation material to solve the problem of oil–water mixing. In this paper, modified cottons were successfully prepared using polydopamine as the in situ mineralization site of TiO_(2) nanoparticles combined with synergistic crosslinking with KH550. A large number of hydrophilic groups endowed the cotton with superhydrophilic ability, which greatly shortened its water spreading time. The prepared modified cotton could be successfully separated from oil and water, and still had a separation efficiency of 99.999% after 50 cycles. In addition, after 24 h immersion in 1 M HCl, NaOH, and NaCl solutions and 50 abrasion experiments, the modified cotton showed excellent oil–water separation ability, and the separation efficiency was above 99.990%. Successfully provided a simple preparation method to prepare high-efficiency and clean cottons for oil–water separation.

关键词： Oil-water separation Superhydrophilicity Cotton Polydopamine

Nature-inspired Polysaccharide-based Aerogel for Oil–water Separation

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Journal of Bionic Engineering 2023年第5期20卷 1956-1966页

作者： Ye Fu Shulun Ai Zhiguang Guo Weimin Liu ministry of education key laboratory for the green preparation and application of functional materials Hubei UniversityWuhan430062China State key laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou730000China

Oily wastewater pollution is an urgent problem to be solved.Complicated preparation process,toxic hydrophobic modifiers and poor mechanical properties limit the application of polysaccharide-based aerogel in oil–water separation.Inspired by the Strider’s Leg structure in nature,an eco-friendly and reusable polysaccharide-based composite aerogel was prepared by hydrophobic modification with zein for efficient oil–water separation.The introduction of hydrophobic zein into aerogel by simple immersion method without the use of toxic modifiers can build micro/nanostructures similar to the villi on a water strider’s leg to increase the surface roughness and the hydrophobicity.And three degradable,non-toxic and economical polysaccharides including chitosan,carboxylated cellulose nanofibers and starch were used to construct aerogel skeleton,endowing aerogel with porous structures and good mechanical properties.The resulting composite aerogel(ZOMA)showed low density(0.11 g/cm^(3)),good oil absorption capacity(9 g/g),high flux oil–water separation(5595 L m^(−2)h^(−1))and excellent oil–water separation performance(99.8%).And ZOMA still had good tensile strength and elasticity after 50 compression cycles.After 10 cycles of absorption and desorption,ZOMA aerogel remained still more than 90%of its initial absorption capacity.This study provides new insight for the design of environmentally friendly and efficient adsorbents for oil–water separation.

关键词： Polysaccharide based aerogel Zein Hydrophobic modification Oil-water separation

Surfactant Mediated Microphase Separation in Miscible Block Copolymer of Poly(4-vinyl pyridine-b-hydroxybutylacrylate)

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Chinese Journal of Polymer Science 2023年第6期41卷 897-904,I0007页

作者： Xiang-Yun Xu Yu-Tong Gao Ying-Ying Wang You-Shuang Zhou Bi-Jin Xiong Jin-Tao Zhu key laboratory of materials Chemistry for Energy Conversion and Storage(HUST)of ministry of education School of Chemistry and Chemical Engineering.Huazhong University of Science and Technology(HUST)Wuhan 430074China key laboratory of Optoelectronic Chemical materials and Devices(ministry of education) Jianghan UniversityWuhan 430056China key laboratory of green preparation and application of functional materials(ministry of education) Hubei Key Laboratory of Polymer MaterialsFaculty of Materials Science and EngineeringHubei UniversityWuhan 430062China

Miscible disordered block copolymers(BCPs)are rarely studied due to the limits in self-assembly into ordered microstructures.Herein,we proposed a facile method for the transformation of disordered miscible BCPs to comb-like BCPs with well-ordered microphase separation structures via blending with amphiphilic surfactants.In this work,poly(4-vinyl pyridine-b-hydroxybutylacrylate)(P4VP-b-P4HBA)was applied as a model of miscible disordered BCPs and the microphase separation was induced via blending with surfactants of dodecylbenzene sulfonic acid(DBSA)and 3-pentadecylphenol(PDP).The ordered microstructures including spherical and cylindrical morphologies were confirmed by transmission electron microscopy(TEM)and small angle X-ray scattering(SAXS)investigation.These ordered microstructures thermal sensitive,in which ordered and disordered transformation(ODT)was observed in the blend of P4VP-b-P4HBA and PDP whereas it disappeared in the blend of P4VP-b-P4HBA and DBSA.The results show that the thermal stability of the ordered microstructures are strongly depends on the interactions between the miscible BCPs and surfactants,which investigated by in situ SAXS and Fourier transform infrared spectrometer(FTIR).The combination of miscible BCPs and surfactant creates a feasible strategy to fabricate ordered nanostructures,which could be employed to develop complicated nanomaterials.

关键词： ordered disordered vinyl

applications of graphene-based materials in environmental protection and detection

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Chinese Science Bulletin 2013年第22期58卷 2698-2710页

作者： Lü MeiJiao LI Jing YANG XuYu ZHANG ChangAn YANG Jia HU Hao WANG XianBao key laboratory for the green preparation and application of functional materials ministry of education Faculty of materials Science and Engineering Hubei University

Many efficient adsorbents and sensors based on graphene and functionalized graphene have been constructed for the removal and detection of environmental pollutants due to its unique physicochemical properties. In this article, recent research achievements are reviewed on the application of graphene-based materials in the environmental protection and detection. For environmental protection, modified graphene can adsorb heavy metal ions in a high efficiency and selectivity, and thus reduces them to metals for recycling. High adsorption capacity of graphene-based materials to kinds of organic pollutants in water was also presented. Several graphene-based sensors with high limit of detection were reported to detect heavy metal ions, toxic gases and organic pollutants in environment. Finally, a perspective on the future challenge of adsorbents and detection devices based on graphene is given.

关键词：改性石墨环境保护检测限材料应用重金属离子有机污染物物理化学性质

Fabrication and Thermal Insulating Properties of ATO/PVB Nanocomposites for Energy Saving Glass

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Journal of Wuhan University of Technology(materials Science) 2013年第5期28卷 912-915页

作者：张刚申 YAN Wei 蒋涛 key laboratory of green preparation and application for functional materials Ministry of EducationHubei University Faculty of materials Science & Engineering Hubei University

The pechini method was used to synthesize antimony-doped tin oxide （ATO） nanoparticles, and the subsequent solution co-blend was employed to fabricate ATO/PVB nanocomposites. Uv-Vis-NIR spectra show that the addition ofATO nano particles can significantly enhance the thermal insulating efficiency of ATO/PVB nanocomposites. With the increase of ATO content, the thermal insulating efficiency is increased. Uv is almost fully absorbed by all ATO/PVB nanocomposites. Vis transmittance-haze spectra reveal that ATO/ PVB nanocomposites exhibit higher Vis transmittance of over 72.7% and lower haze of below 2% when ATO content is in the range of 0.1 wt%-0.5 wt%. The thermal insulating tests indicate that in comparison with the pure PVB film, nanocomposite films with 0.1 wt%-0.5 wt% ATO can reduce temperature of 1-3 ℃, suggesting that this novel nanocomposite can be used for energy-saving glass.

关键词： polymer nano composites physical properties thermal insulating

Low friction of superslippery and superlubricity:A review

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Friction 2023年第7期11卷 1121-1137页

作者： Zijian ZHENG Zhiguang GUO Weimin LIU Jianbin LUO ministry of education key laboratory for the green preparation and application of functional materials Hubei UniversityWuhan 430062China State key laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China State key laboratory of Tribology Tsinghua UniversityBeijing 100084China

The issues regarding energy dissipation and component damage caused by the interface friction between a friction pair attract enormous attention to friction reduction.The key-enabling technique to realize friction reduction is the use of lubricants.The lubricants smooth the contact interfaces,achieving an ultralow friction contact,which is called superslippery or superlubricity.At present,superslippery and superlubricity are two isolated research topics.There is a lack of unified definition on superslippery and superlubricity from the viewpoint of tribology.Herein,this review aims at exploring the differences and relations between superslippery and superlubricity from their origin and application scenarios.Meanwhile,the challenges for developing superslippery surface and superlubricity surface are discussed.In addition,perspectives on the interactive development of these two surfaces are presented.We hope that our discussion can provide guidance for designing superslippery or superlubricity surfaces by using varies drag-reduction technologies.

关键词： low friction superslippery superlubricity tribology lubricants

Microwave Assisted preparation of Monodisperse Polymeric Microspheres and Its Morphologies and Kinetics

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Journal of Wuhan University of Technology(materials Science) 2012年第6期27卷 1100-1104页

作者：严微 HU Xiaoxi ZHANG Gangshen DENG Min YI Changfeng 徐祖顺 Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials Hubei University Faculty of materials Science and Engineering Hubei University

The emulsifier-free emulsion polymerization of N-hydroxymethyl acrylamide （NMA）, methyl methacrylate （MMA） and styrene （St） was successfully carried out under microwave irradiation, and monodisperse polymeric microspheres were prepared. The experimental results show that the emulsifier-free emulsion polymerization under microwave irradiation has more rapid reaction rate, higher conversion and shorter induction time than the copolymerization with conventional heating. The apparent activation energies are 61.04 and 83.75 kJ/mol, respectively; the microspheres have spherical morphology, and the microspheres prepared by emulsifier-free emulsion polymerization under microwave irradiation are smaller, more uniform than those obtained with conventional heating.

关键词： microwave irradiation emulsifier-free emulsion polymerization monodisperse microsphere

Electron transfer dominated triboelectrification at the hydrophobic/slippery substrate-water interfaces

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Friction 2023年第6期11卷 1040-1056页

作者： Yi CHEN Xiaojuan LI Chenggong XU Daoai WANG Jinxia HUANG Zhiguang GUO Weimin LIU State key laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou730000China ministry of education key laboratory for the green preparation and application of functional materials Hubei UniversityWuhan430062China University of Chinese Academy of Sciences Beijing100049China

Triboelectric nanogenerator(TENG)based on triboelectrification has attracted wide attention due to its effective utilization of green energy sources such as marine energy.However,researches about liquid-liquid triboelectrification are still scanty as solid-liquid triboelectrification has been widely studied.Herein,this work focuses on the hydrophobic/slippery substrate-water interfacial triboelectrification based on the solid friction materials of polytetrafluoroethylene(PTFE)nanoparticles.The hydrophobic/slippery substrate-water interfacial triboelectrification are studied by assembling PTFE coated Al sheets and perfluoropolyether(PFPE)infused PTFE coated Al sheets(formed the slippery lubricant-infused surfaces(SLIPSs))as the friction electrode,and water as liquid friction materials,respectively.The results show that the hydrophobic TENG output performances improved as the PTFE nanoparticles cumulating,and the SLIPSs TENG output performances increased with the thinner PFPE thickness.Both the triboelectrification behavior of hydrophobic/SLIPSs TENG assembled in this work are dominated by the electron transfer.Thanks to the introduction of SLIPSs,the SLIPSs TENG exhibits superior stability and durability than the hydrophobic TENG.The investigation of hydrophobic/slippery substrate-water interfacial triboelectrification contributes to optimize the TENG performances,and expands the application in harsh environments including low temperature and high humidity on the ocean.

关键词： triboelectric nanogenerator(TENG) slippery lubricant-infused surfaces(SLIPSs) polytetrafluoroethylene(PTFE)nanoparticles perfluoropolyether(PFPE)