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Hierarchical red phosphorus incorporated TiO_(2) hollow sphere heterojunctions toward superior photocatalytic hydrogen production

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Journal of materials Science & Technology 2022年第13期108卷 18-25页

作者： Guiqing Huang Wanneng Ye Chunxiao Lv Denys S.Butenko Chen Yang Gaolian Zhang Ping Lu Yan Xu Shuchao Zhang Hongwei Wang Yukun Zhu Dongjiang Yang School of Environmental Science and Engineering State Key Laboratory of Bio-fibers and Eco-textilesShandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological TextilesQingdao UniversityQingdao 266071China key laboratory of Photochemistry CAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China College of Physics Jilin UniversityChangchun 130012China Department of Blood Transfusion&Department of Nephrology The Affiliated Hospital of Qingdao UniversityQingdao 266003China

Solar-to-hydrogen conversion through photocatalysis is a sustainable and promising strategy for storing solar ***,elemental red phosphorus(RP)with broad light absorption has been recognized as a potential candidate for photocatalytic hydrogen evolution,while challenges remain due to the rapid recombination of photogenerated *** this work,RP modified TiO_(2)hollow spheres were designed and fabricated through the chemical vapor deposition *** optimal hydrogen production rate reaching 215.5μmol/(g h)over TiO_(2)@RP heterostructure was obtained under simulated solar light *** results evidenced that the hollow sphere structure and RP light absorber extended light absorption ability,and the heterostructure induced interfacial charge migration facilitated photoinduced charge separation,which benefited the photocatalytic hydrogen production performance.

关键词： Red phosphorus Hollow sphere Photocatalysis Hydrogen production Heterostructure

Isothermal Crystallization Behavior of Poly (ethylene terephthalate)/Carbon Black Masterbatch

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Journal of Donghua University(English Edition) 2012年第2期29卷 123-128页

作者：姜兆辉金剑肖长发李鑫 key laboratory of Fiber Modification and Functional Fiber Tianjin Polytechnic University state key laboratory of biobased Fiber Manufacture Technology China Textile Academy

Poly(ethylene terephthalate) (PET)/carbon black (CB) masterbatch was prepared by melt blending using a separate feeding technique and its homogeneous dispersion morphology was confirmed by transmission electron microscope (TEM). The Avrami and Hoffman-Lauritzen secondary nucleation theories were employed to analyze the effect of high CB content on crystallization kinetics of PET, providing theoretical support for the development of masterbatch with high content of functional components. The Avrami exponents,average values of n,for PET and PET/CB masterbatch are both greater than 3, which indicates three-dimensional growth of crystals. In addition,no significant evidence for regime transition of PET is found applying Hoffman-Lauritzen secondary nucleation theory,though such observations have been reported previously in the literature. Furthermore,appropriate U* value for PET is determined to be 12 800 J/mol. For PET/CB masterbatch,a transition from regime I to regime II around 225℃ is observed with appropriate U* value (12 800 J/mol) . This phenomenon is consistent with a transition point in plot of G versus Tc . The fold surface free energy σe (100. 3 mJ/m 2) of PET is much greater than that of PET/CB masterbatch (48. 3 mJ/m 2) ,which indicates heterogeneous nucleation effect of CB particles.

关键词： thermal properties poly(ethylene terephthalate) (PET) carbon black (CB) masterbatch crystallization kinetics

NiFe-based nanostructures on nickel foam as highly efficiently electrocatalysts for oxygen and hydrogen evolution reactions

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Journal of Energy Chemistry 2019年第12期28卷 39-53页

作者： Wei Zhang Daohao Li Longzhou Zhang Xilin She Dongjiang Yang state key laboratory of Bio-Fibers and Eco-Textiles Shandong Collaborative Innovation Center of Marine Biobased Fiber and Ecological TextileInstitute of Marine Biobased MaterialsCollege of Environment Science and EngineeringQingdao UniversityQingdao 266071ShandongChina School of materials Science and Engineering Yunnan Key Laboratory for Micro/Nano Materials&TechnologyYunnan UniversityKunming 650091YunnanChina School of Natural Sciences and Queensland Micro-and Nanotechnology CentreGriffith UniversityNathan Campus 4111Australia

Water splitting,as an advanced energy conversion technology,consists of two half reactions,including oxygen evolution reaction(OER)and hydrogen evolution reaction(HER).However,the ideal electrocatalysts are noble metal based *** high cost and scarcity in earth seriously restrict the large *** Fe-based materials have attracted great attention in recent years due to their excellent catalytic properties for OER and ***,their conductivity and electrochemical stability at high current density are unsatisfactory,resulting in ineffective water splitting due to high impedance and low ***,a series of catalysts coating Ni Fe-based materials on 3 D nickel foam were found to be extremely stable under the circumstance of high current *** this review,we summarized the recent advances of NiFe-based materials on nickel foam for OER and HER,respectively,and further provided the perspectives for their future development.

关键词： Electrocatalysis NiFe compound Nickel foam HER OER

Construction of charge transfer chain in Bi_(12)TiO_(20)-Bi_(4)Ti_(3)O_(12)/α-Bi_(2)O_(3)composites to accelerate photogenerated charge separation

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Nano Research 2023年第3期16卷 3730-3740页

作者： Jincheng Yin Xuebing Chen Guanna Li Dongxu Liu Chun Li Rengui Li Bingxing Xie Johannes H.Bitter Jing Zhang School of Environmental and Safety Engineering Liaoning Petrochemical UniversityFushun 113001China biobased Chemistry and Technology Wageningen University&ResearchStippeneng 4Wageningen 6708 WEThe Netherlands laboratory of Organic Chemistry Wageningen University&ResearchBornse Weilanden 9Wageningen 6708 WGThe Netherlands state key laboratory of Catalysis Dalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China School of New Energy Nanjing University of Science and TechnologyJiangyin 214000China

Photogenerated charge separation and transfer is one of the bottleneck steps in photocatalysis,and efficient charge separation strategies are strongly ***,mimicking the electron transport chain in natural photosynthesis,we report the design and fabrication of a charge transfer chain using bismuth-based semiconductor as a *** view of the thermodynamic energy band positions and structural similarity based on the density functional theory(DFT)analysis,heterostructured combination ofα-Bi_(2)O_(3),perovskite-like Bi_(4)Ti_(3)O_(12),and sillenite Bi12TiO20 was designed for fabrication of charge transfer *** tuning the molar ratio of Bi and Ti precursors,the Bi_(4)Ti_(3)O_(12)and Bi12TiO20 particles were formed on the surface ofα-Bi_(2)O_(3)by an insitu transformation process,giving rise to Bi_(12)TiO_(20)-Bi_(4)Ti_(3)O_(12)/α-Bi_(2)O_(3)composites with charge transfer *** propose that the effective charge transfer is accomplished amongα-Bi_(2)O_(3),Bi12TiO20,and Bi_(4)Ti_(3)O_(12),which significantly improves the photogenerated charge separation and transfer,as indicated by photoluminescene,time-resolved photoluminescene,and electrochemical impedance spectra *** expected,the Bi_(12)TiO_(20)-Bi_(4)Ti_(3)O_(12)/α-Bi_(2)O_(3)shows the superior photocatalytic activity for the degradation of environmental pollutants with high *** for the refractory pollutants like 4-chlorophenol,the optimal Bi_(12)TiO_(20)-Bi_(4)Ti_(3)O_(12)/α-Bi_(2)O_(3)composite shows 28 times higher than that ofα-Bi_(2)O_(3)for photocatalytic degradation,verifying the superiority of photogenerated charge transfer chain in *** work demonstrates the feasibility of the charge transfer chain strategy to boost the photogenerated charge separation,which is of great significance for designing energy and environmental-related materials in heterogonous photocatalysis.

关键词： photogenerated charge separation charge transfer chain bismuth titanates bismuth oxides

一种用于可穿戴传感器的超柔性、透明、自粘附、可自愈、抗冻和长期稳定冷冻水凝胶

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中国科学:材料科学(英文版) 2023年第9期66卷 3713-3722页

作者：刘硕张宪胜许红星田明伟曲丽君王莉莉 College of Textiles and Clothing Research Center for Intelligent and Wearable TechnologyIntelligent Wearable Engineering Research Center of QingdaoQingdao UniversityQingdao 266071China state key laboratory of Bio-Fibers and Eco-Textiles Collaborative Innovation Center for Marine Biomass FibersMaterials and Textiles of Shandong ProvinceInstitute of Marine Biobased MaterialsQingdao UniversityQingdao 266071China

软体器件领域亟需多功能水凝胶,然而,其复杂的功能成分在实际应用中存在安全和环境隐患.在本研究中,单一氯化锂盐在构建冻融聚乙烯醇水凝胶的多层次结构中同时发挥多重作用,激发其前所未有的多功能性和长期稳定性.(1)在冷冻过程中,抗冻... 详细信息

关键词：聚乙烯醇水凝胶冷冻过程多功能性长期稳定性氯化锂水合作用多层次结构聚合物分子

Calculation on phase diagrams of polyetherimide/ N,N-dimethylacetamide/H2O-BuOH casting system and their relevance to membrane performances

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Frontiers of Chemical Science and Engineering 2014年第3期8卷 312-319页

作者： Ming TAN Gaohong HE Yan DAI Rujie WANG Wenhua SHI state key laboratory of Fine Chemicals R&D Center of Membrane Science and Technology School of Chemical Engineering Dalian University of Technology Dalian 116024 China key laboratory of biobased materials Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences Qingdao 266101 China

The ternary phase diagrams of polyetherimide （PEI）/N,N-dimethylacetamide （DMAc） with H2O and BuOH as non-solvent were simulated using solubility parameter and Flory-Huggins theory. The phase diagrams show that 5.5% H2O/BuOH system containing 5% BuOH and 0.5% H2O or 6.5% H2O/BuOH system containing 6.2% BuOH and 0.3% H2O is required to induce liquid- liquid demixing for 20 wt-% PEI/DMAc casting solution. Therefore, BuOH can enhance the phase separation of the PEI casting solution and hereby induce higher porosity of the membrane, and the diffusion of BuOH into the water coagulation bath causes larger pore size easily compared with DMAc. Our predictions that the membrane pure water flux first increases then decreases, and the rejection ratio of bovine serum albumin decreases with the increasing concentration of BuOH were validated by the experiments using the prepared membranes.

关键词： phase diagram solubility parameter interaction parameter ultrafiltration Flory-Huggins theory

Nanofibrillation of a Bleached Acacia Pulp by Grinding with Carboxymethylation Pretreatment

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Paper And Biomaterials 2018年第3期3卷 32-38页

作者： Ming He GuiHua Yang JiaChuan Chen FanGong Kong Qiang Wang state key laboratory of biobased Material and green papermaking/key Lab of Pulp & Paper Science and Technology of Education Ministry of China Qilu University of Technology (Shandong Academy of Sciences)

In this study,carboxymethylation,which introduces carboxyl groups to hydroxyl sites in pulp fibers,was used as a pretreatment before mechanical *** carboxyl group content of the pulp fibers was greatly affected by the dosage of chloroacetic acid and the reaction *** the following fibrillation process,it was found that pulp fibers with higher carboxyl group content exhibited higher water holding capacities and smaller dimensions.A more homogenous structure with a higher amount of individual fibrils was also observed in FE-SEM images of pulp fibers with high carboxyl group *** can be explained by a high ionic group content in the fiber wall resulting in lower delamination resistance,making the fibrils easier to *** pretreatment as a facilitator of fibrillation in cellulosic pulps is an efficient way to obtain cellulose nanofibrils and consequently decrease the energy consumption of the process.

关键词： nanofibrillation grinder carboxymethylation pretreatment bleached acacia pulp

Tea stain-inspired solar energy harvesting polyphenolic nanocoatings with tunable absorption spectra

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Nano Research 2021年第4期14卷 969-975页

作者： Lu Yang Yuan Zou Wei Xia Haotian Li Xinyu He Yi Zhou Xianhu Liu Chaoqun Zhang Yiwen Li College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065China National Engineering Research Center for Advanced Polymer Processing Technology Zhengzhou UniversityZhengzhou 450002China key laboratory for biobased materials and Energy of Ministry of Education College of Materials and EnergySouth China Agricultural University483 Wushan RoadGuangzhou 510642China Guangdong laboratory for Lingnan Modem Agricultural Science and Technology 483 Wushan RoadGuangzhou 510642China

Discovery and development of new sustainable photothermal materials with tunable light absorption spectra play a key role in solar energy harvesting and *** possible solution to this quest is to check nature as a source of matters or *** by the formation of tea stains,a unique class of dark stain materials generated by the interfacial reaction between tea polyphenols and metal substance,we reported the facile preparation and screening of a series of photothermal nanocoating layers via the metal ion(i.e.C u(ll)>Fe(lll),Ni(ll),Zn(ll))promoted in situ polymerization of typical phenolic moieties of tea polyphenols(i.e.,catechol and pyrogallol).It was found that those resulting metal-polyphenolic nanocoatings showed various promising features,such as high blackness and strong adhesion,excellent and tunable light absorption properties,good hydrophilicity and long-term *** further fabricated the photothermal composite devices by/n s/'fty formation of meta卜polyphenolic nanocoatings on pristine silks for solar desalination,which demonstrated promising durable evaporation behaviors with excellent evaporation rates and steam generation *** believe that this work could provide more opportunities towards new types of bio-inspired and sustainable photothermal nanomaterials for solar energy harvesting applications such as water desalination.

关键词： metal-polyphenolic nanocoating polymerization light absorption photothermal solar desalination

Architecture engineering of carbonaceous anodes for high-rate potassium-ion batteries

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Carbon Energy 2021年第4期3卷 554-581页

作者： Tianlai Wu Weicai Zhang Jiaying Yang Qiongqiong Lu Jing Peng Mingtao Zheng Fei Xu Yingliang Liu Yeru Liang key laboratory for biobased materials and Energy of Ministry of Education Guangdong Provincial Engineering Technology Research Center for Optical AgricultureCollege of Materials and EnergySouth China Agricultural UniversityGuangzhouChina Guangdong laboratory of Lingnan Modern Agriculture GuangzhouChina state key laboratory of Solidication Processing School of Materials Science and EngineeringCenter for Nano Energy MaterialsNorthwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU)Xi'anChina Leibniz Institute for Solid state and materials Research(IFW)Dresden e.V. DresdenGermany

The limited lithium resource in earth's crust has stimulated the pursuit of alternative energy storage technologies to lithium-ion ***-ion batteries(KIBs)are regarded as a kind of promising candidate for large-scale energy storage owing to the high abundance and low cost of potassium ***,further development and wide application of KIBs are still challenged by several obstacles,one of which is their fast capacity deterioration at high rates.A considerable amount of effort has recently been devoted to address this problem by developing advanced carbonaceous anode materials with diverse structures and *** review presents and highlights how the architecture engineering of carbonaceous anode materials gives rise to high-rate performances for KIBs,and also the beneficial conceptions are consciously extracted from the recent ***,basic insights into the recent engineering strategies,structural innovation,and the related advances of carbonaceous anodes for high-rate KIBs are under specific *** on the achievements attained so far,a perspective on the foregoing,and proposed possible directions,and avenues for designing high-rate anodes,are presented finally.

关键词： carbonaceous anodes electronic conductivity high-rate performance ion diffusivity potassiumion batteries