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Introducing cerium into TiO_(2)@MnO_(x) hollow-sphere structure for highly active photothermocatalysis degradation of ethyl acetate and NO under H_(2)O at low temperature

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Journal of Rare Earths 2024年第5期42卷 889-898,I0003页

作者： Yinming Fan Yanhong Wang Morui li Yinian Zhu Zongqiang Zhu Shengpeng Mo lihao Zhang Shen Tang xiaobin Zhou Yanping Zhang Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area Guilin University of TechnologyGuilin541004China The Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control.Guilin University of Technology.Guilin 541004China Technical Innovation Center of Mine Geological Environmental Restoration Engineering in Southern Karst Area Nanning530022China

The CeO_(2)-TiO_(2)@MnO_(x) catalyst was prepared by the co-precipitation method and applied to the photothermocatalysis system of ethyl acetate and NO simultaneous degradation under H_(2)O at low temperature,which introduced Ce into TiO_(2)@MnO_(x) hollow sptrera structure.The optimum TiO_(2)/MnO_(x) ratio and Ce introducing amount were obtained in the process.Among of them,the NO and ethyl acetate conversion percentage of TiO_(2)@MnO_(x)(n_(Mn):n_(Ti)=40:40)is 74%and 62%at 240℃,respectively.CeO_(2)-TiO_(2)@MnO_(x)(n_(Mn):n_(Ce)=1:1)exhibits the best catalytic performance,its efficiency for NO conversion is 83%and the conversion of ethyl acetate reaches 72%at 240℃.In addition,it is confirmed that the Cedoped nanocomposites have more uniform dispersion through various characterization and analysis methods.Meanwhile,these catalysts have a large specific surface area as well as a large number of surface-active oxygen and oxygen vacancies.It can further improve the catalytic performance based on the adjusted ratio of active components.Moreover,this work investigated the relationship between multi-metal interactions and catalytic performance in the presence of H_(2)O.Finally,the possible reaction pathways for the simultaneous removal of NO and ethyl acetate were explored in our system.

关键词： Photothermocatalysis Ethyl acetate NO Low temperature H_(2)O Rare earths

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Graphene-based nanomaterials for cancer therapy and anti-infections

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Bioactive Materials 2022年第8期7卷 335-349页

作者： Yan Wang Juan li xiaobin li Jinping Shi Zhaotan Jiang Can Yang Zhang School of Physics Beijing Institute of TechnologyBeijing100081China Advanced Research Institute for Multidisciplinary Science Beijing Institute of TechnologyBeijing100081China Institute of Biopharmaceutical and Health Engineering Shenzhen International Graduate SchoolTsinghua UniversityShenzhen518055China

Graphene-based nanomaterials(GBNMs)has been thoroughly investigated and extensively used in many biomedical fields,especially cancer therapy and bacteria-induced infectious diseases treatment,which have attracted more and more attentions due to the improved therapeutic efficacy and reduced reverse effect.GBNMs,as classic two-dimensional(2D)nanomaterials,have unique structure and excellent physicochemical properties,exhibiting tremendous potential in cancer therapy and bacteria-induced infectious diseases treatment.In this review,we first introduced the recent advances in development of GBNMs and GBNMs-based treatment strategies for cancer,including photothermal therapy(PTT),photodynamic therapy(PDT)and multiple combination therapies.Then,we surveyed the research progress of applications of GBNMs in anti-infection such as antimicrobial resistance,wound healing and removal of biofilm.The mechanism of GBNMs was also expounded.Finally,we concluded and discussed the advantages,challenges/limitations and perspective about the development of GBNMs and GBNMs-based therapies.Collectively,we think that GBNMs could be potential in clinic to promote the improvement of cancer therapy and infections treatment.

关键词： Graphene Phototherapy Cancer therapy Anti-infection 2D materials

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Comparison of the effects of Ti-and Si-containing minerals on goethite transformation in the Bayer digestion of goethitic bauxite

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International Journal of Minerals,Metallurgy and Materials 2023年第9期30卷 1705-1715页

作者： Guotao Zhou Yilin Wang Tiangui Qi Qiusheng Zhou Guihua liu Zhihong Peng xiaobin li School of Metallurgy and Environment Central South UniversityChangsha 410083China

Goethitic bauxite is a widely used raw material in the alumina industry.It is an essential prerequisite to clarify the effect of Ti-and Si-containing minerals on goethite transformation in the Bayer digestion process,which could efficiently utilize the Fe-and Al-containing minerals present in goethitic bauxite.In this work,the interactions between anatase or kaolinite with goethite during various Bayer digestion processes were investigated using X-ray diffraction (XRD),X-ray photoelectron spectroscopy (XPS),transmission electron microscopy (TEM),and scanning electron microscopy (SEM).The results showed that anatase and kaolinite hindered the transformation of goethite.Anatase exerted more significant effects than kaolinite due to the dense sodium titanate layer on the goethite surface after reacting with the sodium aluminate solution.Adding the reductant hydrazine hydrate could eliminate the retarding effect by inducing the transformation of goethite into magnetite.In this process,titanium was embedded into the magnetite lattice to form Ti-containing magnetite.Furthermore,the weakening of the interaction between magnetite and sodium aluminosilicate hydrate reduced the influence of kaolinite.As a validation of the above results,the reductive Bayer method resulted in the transformation of goethite into goethitic bauxite with 98.87% relative alumina digestion rate.The obtained red mud with 72.99wt% Fe2O3could be further utilized in the steel industry.This work provides a clear understanding of the transformative effects of Ti-and Si-containing minerals on iron mineral transformation and aids the comprehensive use of iron and aluminum in goethitic bauxite subjected to the reductive Bayer method.

关键词： goethite magnetite kaolinite anatase Bayer digestion

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lithium-ion and solvent co-intercalation enhancing the energy density of fluorinated graphene cathode

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Journal of Energy Chemistry 2024年第2期89卷 208-215,I0006页

作者： Hao Wang Jie Jiang Pengyu Chen Zhenrui Wu xiaobin Niu Chuying Ouyang Jian liu liping Wang School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731SichuanChina School of Engineering Faculty of Applied ScienceThe University of British ColumbiaKelowna V1V 1V7Canada 21C Innovation Laboratory Contemporary Amperex Technology Ltd.(21C LAB)Ningde 352100FujianChina

Fluorinated carbons CF_xhold the highest theoretical energy density(e.g.,2180 W h kg^(-1)when x=1)among all cathode materials of lithium primary batteries.However,the low conductivity and severe polarization limit it to achieve its theory.In this study,we design a new electrolyte,namely 1 M liBF_(4)DMSO:DOL(1:9 vol.),achieving a high energy density in li/CF_xprimary cells.The DMSO with a small molecular size and high donor number successfully solvates li^(+)into a defined li^(+)-solvation structure.Such solvated li^(+)can intercalate into the large-spacing carbon layers and achieve an improved capacity.Consequently,when discharged to 1.0 V,the CF_(1.12)cathode demonstrates a specific capacity of 1944 m A h g^(-1)with a specific energy density of 3793 W h kg^(-1).This strategy demonstrates that designing the electrolyte is powerful in improving the electrochemical performance of CF_(x) cathode.

关键词： Fluorinated carbon Conversion reaction High-energy-density primary battery li^(+)-solvation structure Solvent co-intercalation

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The development road of ammonium phosphate fertilizer in China

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Chinese Journal of Chemical Engineering 2022年第1期35卷 170-175页

作者： Dehua Xu Benhe Zhong Xinlong Wang Xue li Yanjun Zhong Zhengjuan Yan Jingxu Yang xiaobin li Yumei Wang Xiaohou Zhou Ministry of Education Research Center for Comprehensive Utilization and Clean Processing Engineering of Phosphorus Resources College of Chemical EngineeringSichuan UniversityChengdu 610065China

Ammonium phosphate fertilizer is the compounds containing nitrogen and phosphorus that are usually produced through the neutralization reaction of phosphoric acid and ammonia.At present,there are a variety of products,such as slurry monoammonium phosphate(MAP),diammonium phosphate(DAP),industrial grade MAP,water soluble MAP,water soluble ammonium polyphosphate(APP)and so on.After more than 60 years of development,China’s ammonium phosphate fertilizer industry has experienced the road of from scratch and from weak to strong.The successful development of the slurry MAP technology ended the history that the high concentration phosphate fertilizer cannot be produced by using the medium and low grade phosphate ore.The continuous,stable and large-scale production of DAP plant provides sufficient guarantee for DAP products in China.The development of new ammonium phosphate fertilizer products,such as industrial grade MAP,water soluble MAP,water soluble APP,provides technical support for the transformation and upgrading of phosphorus chemical enterprises.In this paper,the production methods,the development history and the latest research progress of ammonium phosphate fertilizers were reviewed.

关键词： Slurry monoammonium phosphate(MAP) Diammonium phosphate(DAP) Industrial grade MAP Water soluble MAP Water soluble ammonium polyphosphate(APP)

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Temporal evolution of the focal mechanism consistency of the 2021 Yangbi M_(S) 6.4 earthquake sequence in Yunnan

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Earthquake Research Advances 2022年第2期2卷 11-20页

作者： xiaobin li Mingpei Jin Ya Huang Wenjian Cha Jun Wang Sihai li Yunnan Earthquake Agency Kunming650224YunnanChina Dali Center of the China Seismic Experimental Site Dali671000YunnanChina

Using the Cut And Paste(CAP)method,we invert the focal mechanism of 38 moderate earthquakes(M_(S)≥3.0)recorded by Yunnan seismic network and analyze the corresponding focal mechanism consistency based on the minimum spatial rotation angle.Our results indicate that the M_(S)6.4 mainshock is induced by a lateral strike slip fault(with a rake angle of~-165°)and a little normal-faulting component event along a nearly vertical plane(dipping angle~79° and strike~138°).Combining our results with high resolution catalog,we argue that the seismogenic fault of this earthquake sequence is a secondary fault western to the major Weixi-Qiaohou-Weishan fault.The focal mechanism evolution can be divided into three periods.During the first period,the foreshock sequence,the focal mechanism consistency is the highest(KAlinearity of seismic distribution may serve as indicators for the identification of foreshock sequence.

关键词： Cut and Paste Focal mechanism solution Consistency parameters Aftershock spreading Seismogenic fault Earthquake trend The Yangbi M_(S)6.4 earthquake in 2021

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Analysis of Temperature Rise Characteristics and Fatigue Damage Degree of ACSR Broken Strand

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Energy Engineering 2023年第3期120卷 617-631页

作者： Jun Zhang xiaobin li Long Zhao Zixin li Shuo Wang Pan Yao Pengfei Dai Jiangmen Power Supply Bureau Guangdong Power Grid Co.Ltd.Jiangmen529030China School of electronic information Xi’an Polytechnic UniversityXi’an710048China

In this paper,the research on ACSR temperature of broken strand and fatigue damage after broken strand is carried out.Conduct modeling and Analysis on the conductor through AnsoftMaxwell software.The distribution of magnetic force lines in the cross section of the conductor after strand breaking and the temperature change law of the conductor with the number of broken strands are analyzed.A model based on electromagnetic theory is established to analyze the distribution of magnetic lines of force in the cross section of the conductor after strand breaking and the temperature variation law of the conductor with the number of broken strands.The finite element analysis results show that with the increase in the number of broken strands,the cross-sectional area of the conductor decreases,the magnetic line of force of the inner conductor at the broken strand becomes denser and denser,and the electromagnetic loss of the conductor becomes larger and larger.Therefore,the temperature of the conductor at the broken strand becomes higher and higher.Then,the current carrying experiment of conductor is carried out for LGJ-240/30 conductor.It is found that the temperature rise at the junction of inner and outer layers at the broken strand is particularly obvious,and the temperature of inner aluminumconductor at the broken strand also increases with the increase of broken strand.According to the analysis of experimental data,with the increase of broken strands,the antivibration ability and service life of the conductor decrease.At the same time,under certain conditions of broken strand,the fatigue life of conductor increases with the increase of temperature.

关键词： Steady-state temperature fatigue damage electromagnetic finite element magnetic line of force electromagnetic loss

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Hybrid post-processing effects of magnetic abrasive finishing and heat treatment on surface integrity and mechanical properties of additively manufactured Inconel 718 superalloys

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Journal of Materials Science & Technology 2022年第33期128卷 10-21页

作者： Kun li Ruijin Ma Ming Zhang Wen Chen xiaobin li David Z.Zhang Qian Tang Lawrence E.Murr Jinfeng li Huajun Cao State Key Laboratory of Mechanical Transmission Chongqing UniversityChongqing 400044China Chongqing Key Laboratory of Metal Additive Manufacturing(3D Printing) Chongqing UniversityChongqing 400044China College of Engineering Mathematics and Physical SciencesUniversity of ExeterNorth Park RoadExeter EX44QFUK W.M.Keck Center for 3D Innovation University of Texas at El PasoEl PasoTX 79968USA Department of Metallurgical Materials and Biomedical EngineeringUniversity of Texas at El PasoEl PasoTX 79968USA Institute of Materials China Academy of Engineering PhysicsMianyang 621908China

Desired microstructure and surface integrity are critical to achieving the high performance of additively manufactured components.In the present work,the hybrid post-processes of magnetic abrasive finishing(MAF)and post-heat treatment(HT)were applied to the additively manufactured Inconel718 superalloys.Their hybrid effects and influencing mechanism on the surface quality and mechanical properties of the additively manufactured samples have been studied comparatively.The results show that the MAF process effectively reduces the surface roughness by more than an order of magnitude due to the flexibility and geometric consistency of the magnetic particles and abrasives with the finished surfaces.The proper sequence of MAF and HT obtains enhanced mechanical properties for the homogenized-MAF-aged sample with the yield strength of 1147 MPa,the ultimate tensile strength of 1334 MPa,and the elongation of 22.9%,which exceeds the standard wrought material.The surface integrity,compressive residual stress field,and grain refinement induced by the MAF and subsequent aging heat treatment increase the cracking resistance and delay the fracture failure,which significantly benefits the mechanical properties.The MAF process combined with proper post-heat treatment provides an effective pathway to improve the mechanical properties of additively manufactured materials.

关键词： Magnetic abrasive finishing Additive manufacturing Inconel 718 Microstructure–property relationship Heat treatment

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Multi-functional engineered polypeptide-based drug delivery systems for improved cancer therapy

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Green Chemical Engineering 2023年第2期4卷 173-188页

作者： xiaobin li Junyu liu Haihong Chen Yaxin Chen Yi Wang Can Yang Zhang Xin-Hui Xing Institute of Biopharmaceutical and Health Engineering Shenzhen International Graduate SchoolTsinghua UniversityShenzhen518055China Institute of Biochemical Engineering Department of Chemical EngineeringTsinghua UniversityBeijing100084China MOE Key Laboratory for Industrial Biocatalysis Beijing100084China Institute of Biomedical Health Technology and Engineering Shenzhen Bay LaboratoryShenzhen440300China Center for Synthetic and Systems Biology Tsinghua UniversityBeijing100084China

With the rapid development of chemical engineering and biotechnology,polypeptide,as a promising candidate in the biomedical field,has been thoroughly investigated and extensively used as the drug delivery vehicle for diseases treatment,especially cancer,owing to the high biocompatibility,good biodegradability,versatile con-structions,and diverse functions.Engineered polypeptide-based drug delivery system(so-called EPP-DDS)can deliver the cargos to the target site via a specific recognition effect,followed by overcoming the barriers like blood brain barrier(BBB)and releasing them by responding to the microenvironment cues,to improve the therapeutic efficacy and reduce the side-effect.Herein,it's of great importance to conclude and summarize the updates on EPP-DDS developed by chemical engineering methods.In this review,we first summarized the recent updates in the manufacturing of polypeptide and preparation of EPP-DDS based on green biochemical engineering and/or synthetic processes for cancer therapy,including chemotherapy,immunotherapy,photodynamic therapy(PDT),gene therapy,and combination therapy.Then,we surveyed the research progress of inflammation-mediated cancer treatment strategies based on EPP-DDS with high anti-inflammation activity.Finally,we concluded the discovery and green production process of engineered polypeptide,challenges,and perspectives of EPP-DDS.Overall,the EPP-DDS has great potential for cancer therapy in the clinic with improved therapeutic efficacy and reduced adverse effect,which needs the innovation of green biochemical engineering for customized design and production of polypeptides.

关键词： Polypeptide Drug delivery system Cancer therapy Biopharmaceutics Green biochemical engineering

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Operando monitoring of dendrite formation in lithium metal batteries via ultrasensitive tilted fiber Bragg grating sensors

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light(Science & Applications) 2024年第1期13卷 153-166页

作者： Xile Han Hai Zhong Kaiwei li xiaobin Xue Wen Wu Nan Hu Xihong Lu Jiaqiang Huang Gaozhi Xiao Yaohua Mai Tuan Guo Institute of Photonics Technology Jinan UniversityGuangzhou 510632China Institute of New Energy Technology College of Information Science and TechnologyJinan UniversityGuangzhou 510632China Key Laboratory of Bionic Engineering(Ministry of Education) Jilin UniversityChangchun 130022China The Key Lab of Low-Carbon Chemistry&Energy Conservation of Guangdong Province School of ChemistrySun Yat-Sen UniversityGuangzhou 510275China Sustainable Energy and Environment Thrust The Hong Kong University of Science and Technology(Guangzhou)NanshaGuangzhouGuangdong 511400China Advanced Electronics and Photonics Research Centre National Research Council of CanadaOttawa K1A OR6Canada

lithium(li)dendrite growth significantly deteriorates the performance and shortens the operation life of lithium metal batteries.Capturing the intricate dynamics of surface localized and rapid mass transport at the electrolyte–electrode interface of lithium metal is essential for the understanding of the dendrite growth process,and the evaluation of the solutions mitigating the dendrite growth issue.Here we demonstrate an approach based on an ultrasensitive tilted fiber Bragg grating(TFBG)sensor which is inserted close to the electrode surface in a working lithium metal battery,without disturbing its operation.Thanks to the superfine optical resonances of the TFBG,in situ and rapid monitoring of mass transport kinetics and lithium dendrite growth at the nanoscale interface of lithium anodes have been achieved.Reliable correlations between the performance of different natural/artificial solid electrolyte interphases(SEIs)and the time-resolved optical responses have been observed and quantified,enabling us to link the nanoscale ion and SEI behavior with the macroscopic battery performance.This new operando tool will provide additional capabilities for parametrization of the batteries’electrochemistry and help identify the optimal interphases of lithium metal batteries to enhance battery performance and its safety.

关键词： battery lithium electrolyte

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