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Boost activation of peroxymonosulfate by iron doped K_(2-x)Mn_(8)O_(16):Mechanism and properties

Chinese Journal of Chemical engineering 2023年第5期57卷 88-97页

作者： Linlin Su Meijun Chen Li Gong Hua Yang Chao Chen Jun Wu Ling Luo Gang Yang Lulu Long Institute of Ecological and Environmental Sciences Sichuan Agricultural UniversityChengdu 611130China Sichuan Keyuan Testing Center of Engineering Technology Chengdu 610091China

Among the numerous transition metal catalysts,manganese-based compounds are considered as promising peroxymonosulfate(PMS)catalysts due to their low cost and environmental friendliness,such as cryptomelane manganese oxide(K_(2-x)Mn_(8)O_(16):abbreviation KMnO).However,the limited catalytic performance of KMnO limits its practical *** this work,iron-doped KMnO(Fe-KMnO)was prepared by one-step hydrothermal method to optimize its catalytic *** with KMnO/PMS system,Fe-KMnO/PMS system possessed more excellent removal efficiency of tetracycline(TC).Meanwhile,the Fe-KMnO/PMS system also exhibited good practical application potential and excellent *** mechanism of Fe-KMnO activation of PMS was further analyzed in *** was found that Fe participated in the redox of high-valent Mn,which promoted the activation of ***,The Fe site as an adsorption site enhanced the TC enrichment ability of the catalyst,reducing the mass transfer resistance and further enhancing the TC removal ability of Fe-KMnO/PMS *** work not only provides an excellent PMS catalyst,but also offers new insights into the mechanism of PMS activation by bimetallic manganese-based catalysts.

关键词： Catalyst Environment Waste water Peroxymonosulfate K_(2-x)Mn_(8)O_(16) Iron doping

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Solar-Driven Hydrothermal Pretreatment to Improve Anaerobic Digestion of Corn Straw

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Bioenergy Research 2025年第1期18卷 1-16页

作者： Ying, Lanxing Zhong, Yao He, Jinsong Tian, Dong Huang, Mei Zhang, Yanzong Liu, Yan Shen, Fei College of Environmental Sciences Sichuan Agricultural University Sichuan Chengdu611130 China Sichuan Provincial Engineering Research Center of Pollution Control in Agriculture Sichuan Agricultural University Sichuan Chengdu611130 China Sichuan Keyuan Engineering Technology Testing Center Co Sichuan Ltd Chengdu611130 China

Because of the increasing contradictions between the depletion of fossil fuels and the pursuit of sustainable development, renewable energy is in great demand. Extra energy inputs restrict biomass from being a carbon–neutral resource for bioenergy conversion. Integrating clean energy can reduce the consumption of conventional energy to settle this issue. Solar energy was introduced into the hydrothermal pretreatment (HP) of lignocellulosic wastes to improve the performance of anaerobic digestion (AD). In this study, a solar-driven hydrothermal pretreatment (SHP) reactor was designed, and four different kinds of weather conditions were selected to investigate the performance of the pretreatment using corn straw (CS) for AD. The results indicated that good weather conditions (high light intensity) achieved the highest temperature of 156.2 °C in the SHP reactor. It was surprising that the pretreated CS at low light intensity (LI) had the highest cumulative methane yield of 210.61 mL/g TS. Correspondingly, the maximum net energy was gained with LI, which was 10.10% higher than that of the untreated substrates. The life cycle assessment results indicated that SHP had better environmental benefits than traditional HP. The work suggested that introducing solar energy into HP is feasible to satisfy the energy requirements, and it is promising for large-scale application. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2025.

关键词： Solar fuels

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Ni_(3)Fe/Ni_(4)S_(3)/Ni/C Mixed Crystal Composite Nanofibers Prepared by Electrospinning and Heat Treatment Methods for Oxygen Evolution Reaction

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Journal of Wuhan University of technology(Materials Science) 2023年第2期38卷 267-273页

作者： LI Tao ZHONG Shujie LOU Qiongyue LING Shuai CHEN Jian MA Guohua YANG Mao WU Xiaoqiang Department of Materials Engineering School of Mechanical EngineeringChengdu UniversityChengdu610106China Material Corrosion and Protection Key Laboratory of Sichuan Province Zigong643000China Analysis and Testing Center Southwest University of Science and TechnologyMianyang621010China

OER catalyst of Ni_(3)Fe/Ni_(4)S_(3)/Ni/C(NiFeSC series)mixed crystal composite nanofibers was prepared by electrospinning and atmospheric heat treatment *** testing results indicate that the diameters of Ni_(3)Fe/Ni_(4)S_(3)/Ni/C composite nanofibers is about 200 nm,the grains size is about 1-3 nm,and the fiber surface is *** electrochemical test results show that the heterojunction of the prepared Ni_(3)Fe/Ni_(4)S_(3)/Ni/C hybrid crystal composite nanofiber has synergistic effect with sulfide,and exhibits good electrocatalytic activity of water decomposition and OER in alkaline *** OER electrocatalytic performance of Ni_(3)Fe/Ni_(4)S_(3)/Ni/C composite electrode prepared via a heat treatment at 1000℃process was tested in 1 mol/L KOH *** results show that the overpotential is about 298 mV,the Tafel slope is about 74 mV?dec-1,and the surface resistance is about 1.69Ω·cm^(2),at the current density of 10 mA·cm^(-2).

关键词： mixed crystal composite material nanofiber NiFeSC oxygen evolution reaction(OER)

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High-precision standard enthalpy of formation for polycyclic aromatic hydrocarbons predicting from general connectivity based hierarchy with discrete correction of atomization energy

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Frontiers of Chemical Science and engineering 2022年第12期16卷 1743-1750页

作者： Zihan Xu Huajie Xu Lu Liu Rongpei Jiang Haisheng Ren Xiangyuan Li School of Chemical Engineering Sichuan UniversityChengdu 610065China Beijing Institute of Aerospace Testing Technology Beijing 100074China Engineering Research Center of Combustion and Cooling for Aerospace Power Ministry of Education Chengdu 610065China

The standard enthalpy of formation is an important predictor of the reaction heat of a chemical *** this work,a high-precision method was developed to calculate accurate standard enthalpies of formation for polycyclic aromatic hydrocarbons based on the general connectivity based hierarchy(CBH)with the discrete correction of atomization *** a comparison with available experimental findings and other high-precision computational results,it was found that the present method can give a good description of enthalpy of formation for polycyclic aromatic *** CBH schemes can broaden the scope of application,this method can be used to investigate the energetic properties of larger polycyclic aromatic hydrocarbons to achieve a high-precision calculation at the CCSD(T)/CBS *** addition,the energetic properties of CBH fragments can be accurately calculated and integrated into a database for future use,which will increase computational *** hope this work can give new insights into the energetic properties of larger systems.

关键词： standard enthalpy of formation polycyclic aromatic hydrocarbons connectivity based hierarchy high-precision calculation

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Biomaterials and regulatory science

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Journal of Materials Science & technology 2022年第33期128卷 221-227页

作者： Xu Song Zhonglan Tang Wenbo Liu Kuan Chen Jie Liang Bo Yuan Hai Lin Xiangdong Zhu Yujiang Fan Xinli Shi Peng Zhao Lei Yang Kai Zhang Antonios G.Mikos Xingdong Zhang Institute of Regulatory Science for Medical Devices Sichuan UniversityChengdu 610064China National Engineering Research Center for Biomaterials Sichuan UniversityChengdu 610064China School of Biomedical Engineering Sichuan UniversityChengdu 610064China Center for Medical Device Evaluation National Medical Products AdministrationBeijing 100081China Sichuan Testing Center for Biomaterials and Medical Devices Chengdu 610064China Center for Health Sciences and Engineering School of Health Sciences and Biomedical EngineeringHebei University of TechnologyTianjin 300130China Departments of Bioengineering Chemical and Biomolecular EngineeringRice UniversityHoustonTX 77251USA

The fast development of both biomaterials and regulatory science calls for a convergence,which is addressed in this article via their link through medical products of biomaterials and related safety and efficacy *** updated definition of biomaterials,and concepts of biomaterials-related medical products and so-called medical-grade and implantable materials are firstly *** a brief overview of the concept and history of regulatory science and its assessment of safety and efficacy of medical products,as well as the currently ongoing biomaterials-related regulatory science programs are ***,the opportunities provided by regulatory science for biomaterials as well as challenges on how to develop a biomaterials-based regulatory science system are *** the first article in the field to elucidate the relationship between biomaterials and regulatory science,key take-home messages include(1)biomaterials alone are not medical products;(2)regulatory authorities approve/clear final medical products,not biomaterials;(3)there is no definition/regulation on the so-called medical-grade or implantable materials;and(4)safety and efficacy refer to final medical products,not biomaterials alone.

关键词： Biomaterials Medical products Regulatory science Safety Efficacy

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Phase-stable wide-bandgap perovskites enabled by suppressed ion migration

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Journal of Energy Chemistry 2024年第9期96卷 120-128页

作者： Zhiyu Gao Yu Zhu Jingwei Zhu Cong Chen Zongjin Yi Yi Luo Yuliang Xu Kai Wu Tianshu Ma Fangfang Cao Zijun Chen Fang Yao Juncheng Wang Wenwu Wang Chuanxiao Xiao Hao Huang Hongxiang Li Qianqian Lin Pei Cheng Changlei Wang Xia Hao Guanggen Zeng Dewei Zhao College of Materials Science and Engineering&Institute of New Energy and Low-Carbon Technology&Engineering Research Center of Alternative Energy Materials and Devices Ministry of EducationSichuan UniversityChengdu 610065SichuanChina School of Optoelectronic Science and Engineering&Collaborative Innovation Center of Suzhou Nano Science and Technology Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province&Key Lab of Modern Optical Technologies of Education Ministry of ChinaSoochow UniversitySuzhou 215006JiangsuChina Ningbo Institute of Materials Technology and Engineering Chinese Academy of SciencesNingbo 315201ZhejiangChina Ningbo New Materials Testing and Evaluation Center Co.Ltd Ningbo 315201ZhejiangChina State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structure&School of Resources Environment and MaterialsGuangxi UniversityNanning 530004GuangxiChina Key Lab of Artificial Micro-and Nano-Structures of Ministry of Education of China School of Physics and TechnologyWuhan UniversityWuhan 430072HubeiChina College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065SichuanChina

Wide-bandgap(>1.7 eV)perovskites suffer from severe light-induced phase segregation due to high bromine content,causing irreversible damage to devices ***,the strategies of suppressing photoinduced phase segregation and related mechanisms have not been fully ***,we report a new passivation agent 4-aminotetrahydrothiopyran hydrochloride(4-ATpHCl)with multifunctional groups for the interface treatment of a 1.77-eV wide-bandgap perovskite film.4-ATpH^(+)impeded halogen ion migration by anchoring on the perovskite surface,leading to the inhibition of phase segregation and thus the passivation of defects,which is ascribed to the interaction of 4-ATpH^(+)with perovskite and the formation of low-dimensional ***,the champion device achieved an efficiency of 19.32%with an open-circuit voltage(V_(OC))of 1.314 V and a fill factor of 83.32%.Moreover,4-ATpHCl modified device exhibited significant improved stability as compared with control *** target device maintained 80%of its initial efficiency after 519 h of maximum power output(MPP)tracking under 1 sun illumination,however,the control device showed a rapid decrease in efficiency after 267 ***,an efficiency of 27.38%of the champion 4-terminal all-perovskite tandem solar cell was achieved by mechanically stacking this wide-bandgap top subcell with a 1.25-eV low-bandgap perovskite bottom subcell.

关键词： Wide-bandgap perovskite Phase segregation lon migration Interface post-treatment All-perovskite tandems

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Biochar-derived dissolved organic matter enhanced the release of residual ciprofloxacin from the soil solid phase

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Chemosphere 2024年 358卷 142193页

作者： Chen, Guo Ma, Jing Yang, Gang Chen, Chao Long, Lulu Li, Linling Gong, Li Xu, Min Wu, Jun Song, Chun Lyu, Jiejie College of Environmental Science Sichuan Agricultural University Chengdu611130 China College of Water Conservancy and Hydropower Engineering Sichuan Agricultural University Ya'an625014 China Sichuan Keyuan Engineering Technology Testing Center Chengdu610073 China College of History Culture and Tourism Fuyang Normal University 236041 China

Biochar has been utilized to reduce ciprofloxacin (CIP) residues in soil. However, little is known about the effect of biochar-derived dissolved organic matter (DOM) on residual CIP transformation. Thus, we analyzed the residual soil CIP as influenced by biochar generated from rice straw (RS3 and RS6), pig manure (PM3 and PM6), and cockroach shell (CS3 and CS6) at 300 °C and 600 °C. The three-dimensional excitation-emission matrix (3D-EEM), parallel factor analysis (PARAFAC) and two-dimensional correlation spectral analysis (2D-COS) were used to describe the potential variation in the DOM-CIP interaction. Compared with CK, biochar amendment increased the water-soluble CIP content by 160.7% (RS3), 55.2% (RS6), 534.1% (PM3), 277.5% (PM6), 1160.6% (CS3) and 703.9% (CS6), indicating that the biochar feedstock controlled the soil CIP release. The content of water-soluble CIP was positively correlated with the content of dissolved organic carbon (r = 0.922, p © 2024 Elsevier Ltd

关键词： Soils

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Light-controlled crosslinked multifunctional "Band-Aids" as dual-stage wound dressing for dynamic wound closure

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Collagen and Leather 2024年第4期6卷 123-140页

作者： Xinyue Zhang Xue Zhan Chen Hu Zuqin Dong Tao Luo Haihang Li Xiaoju Fan Jie Liang Yafang Chen Yujiang Fan Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co‑Constructed by the Province and Ministry Guangxi Medical UniversityNanningGuangxi 530021China National Engineering Research Center for Biomaterials Sichuan University29#Wangjiang RoadChengdu 610064China College of Biomedical Engineering Sichuan University29#Wangjiang RoadChengdu 610064China Sichuan Testing Center for Biomaterials and Medical Devices Chengdu 610064China Jiangsu Trautec Medical Technology Co. Ltd.18#Jincheng RoadChangzhouJiangsu 213251China

The objective of regenerative wound healing dressings is to accelerate skin tissue regeneration and restore normal physiological function at wound *** this goal requires biomaterials capable of repairing distinct phases of wound healing in a way that balanc es material function,degradation,safety,and tissue *** this study,we introduced a novel dual-stage wound dressing system comprising methacrylic anhydride-modified recombinant humanized type Ⅲ collagen(rhCol Ⅲ-MA) and methacrylic anhydride-modified dopamine(DMA)(RMDM),which was synthesized through free radical polymerization and π-π *** this system,RMDM was formulated into two forms with identic al compositions:hydrogel and sponge,tailored for application across various stages of wound *** materials displayed favorable hemocompatibility,biocompatibility,antioxidant properties,and angiogenic potential in ***,the in vivo experiments also demonstrated that sponges could rapidly stop the bleeding of wounds in mouse tail amputation and liver incision ***,the sponge/gel(S/G) system accelerated wound healing compared to individual sponge and gel treatments in a rat full-thickness skin wound model,underscoring the synergistic benefits of combining sponge and gel materials for wound repair at different *** re,this research provides valuable insights into designing advanced biomaterials that can be tailored to specific stages of wound healing,which may have significant potential for biomedical applications.

关键词： Dual-stage wound dressing system Recombinant humanized typeⅢcollagen Dopamine Lightcontrolled crosslinked Hemostatic property

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Self-assemble Mechanism of Nickel Nanobelts Prepared by Sol-precipitation and Thermal Decomposition Route

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Journal of Wuhan University of technology(Materials Science) 2022年第2期37卷 206-211页

作者： LI Tao CHEN Jian MA Guohua Department of Materials Engineering School of Mechanical EngineeringChengdu UniversityChengdu 610106China Material Corrosion and Protection Key Laboratory of Sichuan Province Zigong 643000China Analysis and Testing Center Southwest University of Science and TechnologyMianyang 621010China

Using the idea of material design and the design of reaction system and conditions,quasi-one-dimensional nano-materials with ribbon-like structure were successfully *** tartrate nanobelts were prepared by a sol-precipitation route,using nickel chloride hexahydrate and tartaric acid as raw materials,and using ammonium hydroxide as pH value *** nanobelts with smooth surface were prepared by a thermal-decomposition route at about 355℃for about 30 minutes,in CO_(2) atmosphere,using nickel tartrate nanobelts as *** analyses of atomic absorption spectrometry(AAS),organic elemental analyzer(OEA),infrared spectroscopy(IR)and ultraviolet-visible spectroscopy(UV-Vis)indicate that the products as-prepared is nickel tartrate,which has octahedral configuration of co-ordination of nickel *** images of scanning electron microscopy(SEM)indicate that the morphology of nickel tartrate as-prepared is an obvious belt structure with clear and smooth *** images of SEM also indicate that the nickel nanobelts have clear and smooth *** nickel nanobelts are about tens of micrometers in length,tens of nanometers in thickness,and 100-200 nanometers in width.

关键词： nickel tartrate nickel nanobelts sol-precipitation thermal-decomposition

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3D-printed auxetic-structured intervertebral disc implant for potential treatment of lumbar herniated disc

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Bioactive Materials 2023年第2期20卷 528-538页

作者： Yulin Jiang Kun Shi Luonan Zhou Miaomiao He Ce Zhu Jingcheng Wang Jianhua Li Yubao Li Limin Liu Dan Sun Ganjun Feng Yong Yi Li Zhang Analytical and Testing Center Department of Orthopedic Surgery and Orthopedic Research InstituteSichuan UniversityChengdu610065China School of Materials Science and Engineering Southwest University of Science and TechnologyMianyang621010China Advanced Composite Research Group(ACRG) School of Mechanical and Aerospace EngineeringQueen’s University BelfastBT95AHUK

In this study,a novel artificial intervertebral disc implant with modified“Bucklicrystal”structure was designed and 3D printed using thermoplastic *** new implant has a unique auxetic structure with building blocks joined“face-to-face”.The accompanied negative Poisson’s ratio enables its excellent energy absorption and stability under *** deformation and load distribution behavior of the implant under various loading conditions(bending,torsion,extension and flexion)has been thoroughly evaluated through finite element *** show that,compared to natural intervertebral disc and conventional 3D implant,our new implant exhibits more effective stress transfer and attenuation under practical loading *** implant’s ability to contract laterally under compression can be potentially used to alleviate the symptoms of lumbar disc ***,the biocompatibility of the implant was assessed in vitro and its ability to restore the physiological function of the disc segment was validated in vivo using an animal model.

关键词： Negative Poisson’s ratio Lumbar disc herniation Finite element simulation

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