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Construction of CS@APP@UiO-66 through self-assembly technology as flame retardant and smoke suppressant for epoxy resins

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Frontiers of Chemical science and Engineering 2025年第4期19卷 1-11页

作者： Siqing Shao Liping Jin Siyuan He Yijing Feng Wenwen Guo Key Laboratory of Eco-textiles Ministry of EducationCollege of Textile Science and EngineeringJiangnan UniversityWuxi 214122China

To achieve fire-resistant epoxy resin(EP),a UiO-66-based novel flame retardant coating(CS@APP@UiO-66)was prepared by modifying UiO-66 with chitosan(CS)and ammonium polyphosphate(APP)through a layer-by-layer(LbL)self-assembly method,which was then introduced into an EP system to improve its fire *** results of scanning electron microscopy,X-ray diffraction and Fourier transform infrared spectroscopy show that the unsaturated Zr atoms in the UiO-66 framework provide many active sites conducive to modification,so that the UiO-66 particles,which originally had a regular octahedral structure,are more dispersed by LbL modification without causing doping or distortion *** thermogravimetric analysis results indicate that the char residue of EP/2%UiO-66 is increased by 2.52%compared with that of pure EP,indicating that the thermal properties of the EP composite are improved after *** addition,the cone test results indicate that EP/2%UiO-66-5L has good flame retardancy and smoke suppression properties,and the peak heat release rate,total smoke production and rate of CO generation values are 25.2%,5.7%and 38.5%lower than those of the unmodified ***,it can be concluded from the Raman test that the graphitization degree of the modified EP composite is *** above results indicated that after the incorporation of CS@APP@UiO-66 into the EP composites,more char layers formed as physical barriers to prevent the transfer of mass and heat,thus reducing the speed of flame ***,the flame resistance and smoke suppression of the EP composites *** favorable characteristics,including high flame retardant efficiency and good smoke suppression,make LbL-functionalized UiO-66 promising for flame retardant polymer applications.

关键词： epoxy resin composites metal organic framework(UiO-66) layer-by-layer self-assembly(LbL) flame retardant smoke suppressant

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Highly integrated smart mountaineering clothing with dual-mode synergistic heating and sensitive sensing for personal thermal management and human health monitoring

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Journal of Materials science & technology 2024年第15期182卷 12-21页

作者： Yifan Cui Guolin Zheng Zhe Jiang Man Zhou Yuanyuan Yu Ping Wang Qiang Wang Key Laboratory of Science and Technology of Eco-Textiles Ministry of EducationJiangnan UniversityWuxi 214122China

The development of multifunctional textiles is an effective strategy to improve the quality of human *** single-mode heaters and strain sensors have been developed,but their low integration leads to multiple devices being installed on the garment,which greatly increases the weight of the garment and thus reduces its ***,bio-enzymatic polymerization and a simple shaking deposition method were used to prepare poly(3,4-ethylenedioxythiophene)(PEDOT)and copper(Ⅱ)sulfide(CuS)onto the surface of the elastic nylon fabrics,which endowed the fabrics with excellent dual-mode heating properties and sensitive sensing properties,and used to develop highly integrated multifunctional and smart mountaineering *** electro-driven heating mode,low-voltage(6 V)and high-voltage(12 V)heating can be used for joint heat therapy and active rapid deicing,*** photo-driven heating mode,low intensity(0.3 sun)and high intensity(1.5 sun)heating can be used for joint heat therapy and rapid antibacterial,*** addition,the fabric has the ability of dual-mode synergistic heating,and the surface temperature of the fabric can exhibit an ultra-high temperature of 137.9℃ under the external stimulation of 0.3 sun and 12 *** fabric will greatly enhance the deicing and antibacterial efficiencies under the synergistic *** work provides a facile strategy for the fabrication of flexible and highly integrated multifunctional electronic devices,and therefore has great potential for the design and development of all-in-one multifunctional electronic devices such as personal thermal management,soft robotics,and human-computer interaction.

关键词： Synergistic heating Negative response strain In situ enzymatic polymerization Rapid photothermal antibacterial On-demand hyperthermia

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S-scheme heterojunction construction of Fe/BiOCl/BiVO4 for enhanced photocatalytic degradation of ciprofloxacin

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Progress in Natural science:Materials International 2024年第2期34卷 290-303页

作者： Guanlong Yu Qifang Sun Yi Yang Si Chen Yuannan Long Yifu Li Shiyong Ge Dian Zheng School of Hydraulic and Environmental Engineering Changsha University of Science & Technology Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province School of Environmental Engineering Wuhan Textile University

With the growing problem of water pollution caused by antibiotics,the development of photocatalysts with high photogenerated carrier separation efficiency is crucial.A high-efficiency microsphere Fe/BiOCl/BiVO4with Sscheme heterojunction was synthesized by solvothermal method and its ciprofloxacin（CIP） degradation performance were investigated under visible ***,FT-IR,SEM,EDS,HRTEM and XPS results show that the photocatalytic have good crystallization,morphology and the formed a *** photocatalytic performance of Fe/BiOCl/BiVO4for CIP was superior to pure BiOCl and BiVO4due to the microsphere and formed heterostructure between BiOCl and *** influencing factors of CIP degradation by Fe/BiOCl/BiVO4were investigated,and the results showed that Fe/BiOCl/BiVO4had high degradation efficiency not only at pH 5-9,but also in the presence of inorganic Cl-,NO3-and metal *** the optimal conditions,the degradation rate of CIP was up to 100% in 75 *** addition to CIP,the Fe/BiOCl/BiVO4photocatalysts degraded other organic pollutants,such as tetracycline,oxytetracycline,chlortetracycline,ofloxacin,levofloxacin,and rhodamine B,by more than 92%.The main active species were photogenerated holes（h+） and superoxide radicals（·O2-）.In addition,possible intermediates and toxicity of intermediates were analyzed and five potential pathways for CIP degradation were proposed.

关键词： BiOCl/BiVO4 Fe3+ doping Organic pollutant Photocatalysis S-scheme heterojunction

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Morphology-dependent activation of hydrogen peroxide with Cu_(2)O for tetracycline hydrochloride degradation in bicarbonate aqueous solution

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Journal of Environmental sciences 2024年第3期137卷 567-579页

作者： Xiuying Liu Qianna Xia Jiao Zhou Bowen Li Shuaiqi Zhao Long Chen Aimal Khan Xiaoxia Li Aihua Xu School of Chemistry and Chemical Engineering Wuhan Textile UniversityWuhan 430200China Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing and Finishing Wuhan Textile UniversityWuhan 430200China School of Environmental Science and Engineering Huazhong University of Science and TechnologyWuhan 430074China

The design of efficient heterogeneous catalysts in bicarbonate-activated hydrogen peroxide systems(BAP)is a hot topic in wastewater *** this work,Cu_(2)O nanoparticles with different morphologies including cubic shape(c-Cu_(2)O),octahedron shape(o-Cu_(2)O)and spherical shape(s-Cu_(2)O),were applied in BAP for the first time to degrade tetracycline hydrochloride(TC).Compared with Cu^(2+)ions and CuO,TC degradation was boosted in the presence of Cu_(2)O in the BAP system,with the degradation rate following the order c-Cu_(2)O>o-Cu_(2)O>s-Cu_(2)*** morphology-dependent effects could be linearly correlated with the ratio of surface oxygen species(O_S),but not with the surface area or Cu(Ⅰ)*** c-Cu_(2)O catalyst with exposure of(100)facets contained 76.6%O_Sas the active site for H_(2)O_(2)adsorption and activation,while the value was much lower for o-Cu_(2)O and s-Cu_(2)O with dominant(111)*** presence of HCO_(3)-enhanced the interactions among Cu_(2)O,H_(2)O_(2)and TC,leading to facile oxidation of Cu(Ⅰ)to Cu(Ⅱ)by H_(2)O_(2),and the formation of various reactive species such as hydroxyl radicals and Cu(Ⅲ)contributed to TC *** work provides a new method for enhancing H_(2)O_(2)activation with heterogeneous catalysts by crystal facet engineering.

关键词： Hydrogen peroxide Bicarbonate Cu_(2)O Morphology-dependent effects

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High performance soft fiber-reinforced sodium alginate/polyacrylamide double-network hydrogels

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Progress in Natural science:Materials International 2024年第6期34卷 1267-1273页

作者： Xiaodan Wang Dan Xie Wenwen Hou Lilong Gao Yanzhi Xia Kunyan Sui College of Materials Science and Engineering State Key Laboratory of Bio-Fiber and Eco-textiles Collaborative Innovation Center for Marine Biobased Fibers and Ecological Textile Technology Institute of Marine Biobased Materials Qingdao University

Strong and stretchable hydrogels are in great demand but challenging due to the trade-off between the strength and stretchability. Here, we successfully prepared highly strong and stretchable sodium alginate/polyacrylamide（SA/PAM） double network（DN） hydrogels by using swollen calcium alginate fiber（CAF） as the first energy dissipating network. The swollen fibers contributed two functions: the homogeneous SA ionic crosslinkedpolymer networks and the soft fiber reinforcement. In contrast to the stiff fiber, the soft CAF provide more effective energy dissipation transferring from soft fiber to the liquid hydrogel. The as-prepared hydrogels demonstrated a high tensile strength（0.83 MPa）, high stretchability（4230 %）, and high toughness（15.7 MJ/m3）,as 5, 3 and 14 times of the SA/PAM hydrogels. This soft fiber-reinforced strategy offers a new way for preparing high-performance hydrogels, broadening their applications areas.

关键词： Highly stretchable hydrogels Soft sodium alginate fiber Double networks hydrogels

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Enhanced visible light responsive piezoelectric photocatalysis based on Bi2S3 coated BaTiO3 nanorods heterostructures

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Journal of Colloid and Interface science 2025年第Pt B期678卷 657-670页

作者： Liu, Yu Zheng, Jian Zhu, Zhijia Huang, Zhangmi Hu, Chunyan Liu, Baojiang Key Lab of Science and Technology of Eco-textile Ministry of Education College of Chemistry Chemical Engineering Innovation Center for Textile Science and Technology Donghua University No. 2999 North Renmin Road Shanghai201620 China

Although the presence of the built-in electric field will solve the problem of carrier complexation in photocatalytic systems to some extent. However, free carriers will quickly shield the stabilized electric field and lose its effect. Therefore, how to introduce the dynamic piezoelectric field into the photocatalytic system has become an imminent problem. Herein, we developed an overcoated, visible light responsive, piezoelectric-assisted photocatalytic system by depositing Bi2S3 photocatalysts with a narrow-band system onto the surface of highly piezo-responsive BaTiO3 nanorods (BTO NRs). The heterojunction structure, bound by Bi-O chemical bonding, enhances carrier transport efficiency under the influence of the piezoelectric field. In the degradation experiments, the first-order rate constant for the degradation of chlortetracycline hydrochloride (CTC) in the BTO NRs/Bi2S3 system with the optimal complex ratio was 0.0276 min−1, which was 3.1 and 7.8 times higher than that of BTO NRs and Bi2S3, respectively. Additionally, we deduced the degradation pathways of CTC through a combination of Density functional theory (DFT) calculations and Liquid Chromatograph Mass Spectrometer (LC-MS), evaluating the toxicity of the intermediates. This complex system, featuring a highly photo-responsive semiconductor as a photo-acceptor deposited on a piezoelectric semiconductor surface providing a dynamic built-in electric field, enhances carrier separation efficiency under optimal light energy utilization conditions. These findings present novel and effective strategies for addressing two primary challenges in photocatalytic systems: low spectral utilization and significant photogenerated carrier complexation. © 2024 Elsevier Inc.

关键词： Heterojunctions

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Antioxidative MXene@GA‑Decorated textile Assisted by Metal Ion for Efficient Electromagnetic Interference Shielding,Dual‑Driven Heating,and Infrared Thermal Camouflage

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Advanced Fiber Materials 2023年第6期5卷 2080-2098页

作者： Biaobiao Yan Xueming Bao Yilei Gao Man Zhou Yuanyuan Yu Bo Xu Li Cui Qiang Wang Ping Wang Key Laboratory of Science and Technology of Eco‑Textile Ministry of EducationJiangnan University1800 Lihu AvenueWuxi 214122People’s Republic of China

Two-dimensional transition metal carbide/nitride(MXene)-based textiles have been developed in many fields;however,the high sensitivity to oxidation and weak interfacial bonding hinder their ***,we present a strategy for the preparation of a highly antioxidative MXene@gallic acid(MXene@GA,MG)hybrid dispersion,and further covalently grafted it onto carboxylated cotton fabric through interaction with metal ions(Fe^(3+))for fabricating wearable multifunctional *** to the cross-linking effect of Fe^(3+)and the remarkable antioxidant activity of natural polyphenol GA,the MG coatings firmly adhere to the textile surfaces and can withstand conventional washing,exhibiting favorable service stability and potential application ***,the obtained MG-decorated textile has the inherent characteristics of good breathability,moisture permeability,flexibility,and biocompatibility of the original fabric,which are conducive to the wearability of smart ***,by utilizing the outstanding conductivity(~330 S/m)and photothermal convertibility of the MG coating,the functional textile achieves high electromagnetic interference(EMI)shielding efficiency(~35 dB),excellent dual-driven(Joule and solar)heating warmth retention,and infrared thermal *** to the green and scalable preparation process,favorable durability,excellent comfort,and multifunctionality,the MG-decorated textiles are anticipated to be promising candidates for the next generation of smart wearable personal protective clothing.

关键词： Antioxidative MXene@GA Metal ion-assisted deposition Durable stability Multifunctional protective textile

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3D printing of glycerol-mediated alginate hydrogels with high strength and stiffness

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材料科学技术（英文版） 2025年第10期213卷 268-275页

作者： Deshuai Kong Biao Yang Hua Yuan Cong Du Yeqiang Tan State Key Laboratory of Bio-Fibers and Eco-Textiles Collaborative Innovation Center of Marine Biobased Fiber and Ecological Textile TechnologyInstitute of Marine Biobased MaterialsCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China

As a biomass material with biodegradability and biocompatibility,sodium alginate(SA)is a good candidate for constructing hydrogels for tissue-mimicking and biomedical scaffold fabricating through extrusion-based 3D printing ***,the mechanical strength and stiffness of alginate hy-drogels are still not comparable with biological tissues such as tendons and the printability of SA so-lutions is often ***,a novel strategy for 3D printing of alginate hydrogels with high mechanical performance is developed by using glycerol as a co-solvent for SA *** addition of glycerol(GL)enables the formation of a homogenous SA/GL solution with a high solid content of 12-20 wt.％and en-dows crosslinked SA hydrogels with high *** applying uniaxial stretches,hydrogel filaments prepared with concentrated SA/GL solutions reveal a high tensile strength of 36.6-161.3 MPa,Young's modulus of 59.2-1964.2 MPa,and elongation at break of 8.5％-106.2％due to the high orientated and closely packed SA ***/GL solutions become more solid-like with increasing SA concentration,and the solution with a solid content of 16 wt.％exhibits optimal 3D printability because of the appropri-ate rheological properties and thixotropic *** designing the deforming-and-fixing process,3D printed high-strength alginate hydrogels with complex structures are prepared,broadening the applica-tion of alginate hydrogels in load-bearing and biomedical fields.

关键词： Sodium alginate 3D printing High strength Anisotropic structure

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Facile and effective synthesis strategy for terbium-doped hydroxyapatite toward photoelectric devices and flexible functional fibers

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Rare Metals 2024年第4期43卷 1713-1723页

作者： Xiao-Dong Zhang Kun Nie Zi-Yao Hu Ran-Ran Zhou Xiu-Qiang Duan Wu-Bin Dai Song-Song Nie Song-Jun Yao Luo-Xin Wang Le-Fu Mei Hua Wang Yi-Yi Yao Xiao-Xue Ma Hubei Key Laboratory for New Textile Materials and Applications and State Key Laboratory of New Textile Materials and Advanced Processing Technology School of Materials Science and EngineeringWuhan Textile UniversityWuhan430200China Key Laboratory of Testing and Tracing of Rare Earth Products for State Market Regulation Jiangxi University of Science and TechnologyGanzhou341000China Hubei Key Laboratory of Plasma Chemistry and Advanced Materials and Key Laboratory of Green Chemical Engineering Process of Ministry of Education Wuhan Institute of TechnologyWuhan430205China

As a material with good biocompatibility,hydroxyapatite(HAP)can have optical properties after doping with various rare earth *** a biocompatible fluorescent material,doped HAP could have broad applications in biological probes,drug delivery,optoelectronic materials,fluorescence anti-counterfeiting,and other *** this paper,we put forward the preparation of HAP doped with terbium(Ⅲ)ions(Tb^(3+))by hydrothermal *** controlling the Tb^(3+)doping content in reaction and the reaction time,the changes in HAP's structure,morphology,and luminescence properties under different conditions were *** the doping amount of Tb^(3+)reached an optimal value,the dipole-quadrupole would occur and the concentration would be *** control experiment showed that the optimal Tb3+content was 7.5×10^(-5)mol,which showed the best fluorescence ***,a non-luminous material,was rarely used in the field of fluorescent anti-counterfeiting and photoelectric *** proposed to prepare a luminescent aramid/polyphenylene sulfide(ACFs/PPS)fiber paper and a new light-emitting diode(LED)using the Tb-doped HAP *** composite sample exhibited an excellent stability and fluorescence performance,which also demonstrated a possibility of HAP applications in anticounterfeiting and *** introduction of Tb3+dopant HAP was done to give HAP optical properties and broaden the application range of HAP.

关键词： Hydroxyapatite Rare earth luminescence Photoelectric device Aramid Polyphenylene sulfide fiber paper Luminescent fiber

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Preparation and Properties of Fire-retardant Epoxy Resin Containing an Environmentally Friendly Bio-based CS@SA@ZIF-67 Core-shell Nano-hybrid

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Chinese Journal of Polymer science 2025年第5期43卷 828-836页

作者： Nan Xu Guo-Fang Qiu Li-Ping Jin Chen-Peng Ji Cong-Ke Gu Ling-Xin He Wen-Wen Guo Key Laboratory of Eco-textiles Ministry of EducationCollege of Textile Science and EngineeringJiangnan UniversityWuxi214122China State Grid Anhui Electric Power Research Institute Hefei230601China

In this study,a novel CS@SA@ZIF-67 core-shell nano-hybrid was synthesized using zeolitic imidazole framework-67(ZIF-67)as a template and CS@SA@ZIF-67 as a ***,flame-retardant nanocomposites(EP/CS@SA@ZIF-67)were obtained by combining the hybrid with epoxy *** microstructure and morphology of CS@SA@ZIF-67 and the residual chars were explored using Fourier transform infrared(FTIR),scanning electron microscopy(SEM),and X-ray diffraction(XRD),and the effect of the obtained hybrid materials on the fire performance of the epoxy resins was *** with the flame retardant system composed of ZIF-67 and pure EP,the hybrid flame retardant composites exhibited low total heat release and smoke *** thermogravimetric analysis(TGA)results showed that the maximum thermal decomposition temperature of the EP/CS@SA@ZIF-67 based composite coating was stabilized at the highest value(378.2 and 563.9℃)so that the introduction of CS@SA@ZIF-67 could improve the thermal properties of the EP/CS@SA@ZIF-67 composites to a certain ***,the cone test results indicated that the peak heat release rate pHRR of the CS@SA@ZIF-67 filled EP composite was reduced by 18.43%compared to that of pure EP,implying enhanced flame *** enhanced thermal stability and flame retardancy of the CS@SA@ZIF-67 composites were mainly ascribed to the catalytic effect and carbonization ability of CS@SA@ZIF-67.

关键词： Metal organic framework(ZIF-67) Core-shell microspheres Epoxy resin composites Flame retardant Smoke suppressant

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