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Energy & Environmental Materials 2024年第3期7卷 337-344页

作者： Xun Li Tian Tan Wei Ji Wanling Zhou Yuwen Bao xiaohong xia Zhangfan Zeng Yun Gao Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials School of Materials Science&EngineeringHubei UniversityWuhan 430062China School of Artificial Intelligence Hubei UniversityWuhan 430062China

Development of metal oxide semiconductors-based methane sensors with good response and low power consumption is one of the major challenges to realize the real-time monitoring of methane *** this work,a self-assembled mulberry-like ZnO/SnO_(2)hierarchical structure is constructed by a two-step hydrothermal *** resultant sensor works at room temperature with excellent response of~56.1%to 2000 ppm CH_(4)at 55%relative *** is found that the strain induced at the ZnO/SnO_(2)interface greatly enhances the piezoelectric polarization on the ZnO surface and that the band bending results in the accumulation of chemically adsorbed O_(2)^(-)ions close to the interface,leading to significant improvement in the sensing performance of the methane gas sensor at room temperature.

关键词： heterojunction methane sensor oxygen vacancy piezoelectric polarization ZnO/SnO_(2)hierarchical structure

Rational Design and Construction of a CdS QDs/InVO4 Atomic-Layer（110）/（110） Facet S-Scheme Heterojunction for Highly Efficient Photocatalytic Degradation of C2H4

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Energy & Environmental Materials 2024年第3期7卷 215-222页

作者： Yuanpeng Dong Peizhu Ji Xinyue Xu Rong Li Yin Wang Kevin Peter Homewood xiaohong xia Yun Gao Xuxing Chen Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials School of Materials Science&Engineering Hubei University Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices Hubei University of Arts and Science State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences United Water (xianning) Company Limited

Exploring high efficiency S-scheme heterojunction photocatalysts with strong redox ability for removing volatile organic compounds from the air is of great interest and ***,how to predict and regulate the transport of photogenerated carriers in heterojunctions is a great ***,density functional theory calculations were first used to successfully predict the formation of a CdS quantum dots/InVO4atomic-layer （110）/（110） facet S-scheme ***,a CdS quantum dots/InVO4atomic-layer was synthesized by in-situ loading of CdS quantum dots with （110） facets onto the（110） facets of *** a result of the deliberately constructed built-in electric field between the adjoining facets,we obtain a remarkably enhanced photocatalytic degradation rate for *** rate is 13.8 times that of pure CdS and 13.2 times that of pure ***-situ irradiated X-ray photoelectron spectroscopy,photoluminescence and time-resolved photoluminescence measurements were carried *** experiments validate that the built-in electric field enhanced the dissociation of photoexcited excitons and the separation of free charge carriers,and results in the formation of S-scheme charge transfer *** reaction mechanism of the photocatalytic C2H4oxidation is investigated by in-situ electron paramagnetic *** work provides a mechanistic insight into the construction and optimization of semiconductor heterojunction photocatalysts for application to environmental remediation.

关键词： CdS QDs InVO4 atomic-layer photocatalysis S-scheme volatile organic compounds

Rational Design and Construction of a CdS QDs/lnVO_(4) Atomic-Layer(110)/(110)Facet S-Scheme Heterojunction for Highly Efficient Photocatalytic Degradation of C_(2)H_(4)

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Energy & Environmental Materials 2024年第3期7卷 211-218页

作者： Yuanpeng Dong Peizhu Ji Xinyue Xu Rong Li Yin Wang Kevin Peter Homewood xiaohong xia Yun Gao Xuxing Chen Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials School of Materials Science&EngineeringHubei UniversityWuhan 430062China Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices Hubei University of Arts and ScienceXiangyang 441053China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China United Water(xianning)Company Limited Xianning 437100China

Exploring high efficiency S-scheme heterojunction photocatalysts with strong redox ability for removing volatile organic compounds from the air is of great interest and ***,how to predict and regulate the transport of photogenerated carriers in heterojunctions is a great ***,density functional theory calculations were first used to successfully predict the formation of a CdS quantum dots/InVO_(4)atomic-layer(110)/(110)facet S-scheme ***,a CdS quantum dots/InVO_(4)atomic-layer was synthesized by in-situ loading of CdS quantum dots with(110)facets onto the(110)facets of InVO_(4)*** a result of the deliberately constructed built-in electric field between the adjoining facets,we obtain a remarkably enhanced photocatalytic degradation rate for *** rate is 13.8 times that of pure CdS and 13.2 times that of pure InVO_(4).In-situ irradiated X-ray photoelectron spectroscopy,photoluminescence and time-resolved photoluminescence measurements were carried *** experiments validate that the built-in electric field enhanced the dissociation of photoexcited excitons and the separation of free charge carriers,and results in the formation of S-scheme charge transfer *** reaction mechanism of the photocatalytic C_(2)H_(4)oxidation is investigated by in-situ electron paramagnetic *** work provides a mechanistic insight into the construction and optimization of semiconductor heterojunction photocatalysts for application to environmental remediation.

关键词： CdS QDs InVO_(4)atomic-layer photocatalysis S-scheme volatile organic compounds

Forming age and tectono-petrogenises of the Jiugequan ophiolite in the North Qilian Mountain,NW China

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Chinese Science Bulletin 2010年第18期55卷 1899-1907页

作者： xia xiaohong SONG ShuGuang MOE Key Laboratory. of Orogenic Belts and Crustal Evolution School of Earth and Space Sciences Peking University Beijing 100871 China

The Jiugequan ophiolite is one of the representative ophiolite fragments in the Early Paleozoic orogenic belt of the North Qilian *** has been drawn much attention and extensively studied in recent *** this study,ion microprobe(SHRIMP) U-Pb dating was carried out for zircons from isotropic gabbro from the Jiugequan *** analyses yield a relatively consistent apparent 206Pb/238U ages from 480 to 508 Ma with a weighted mean age of 490±5 Ma(MSWD=1.06),which is believed to be the crystallization age of the gabbro and thus the forming age of the Jiugequan *** and trace element geochemical study indicates that the diabase-basalts from the Jiugequan ophiolite have N-MORB and E-MORB characteristics with some subduction-related *** petrological,geochemical and chronological data enable us to conclude that the Jiugequan ophiolite is most likely to be formed at a spreading center of back-arc basin during the early Ordovician,while the ancient Qilian oceanic plate subducted *** acquisition of forming age and determination of tectonic setting for Jiugequan ophiolite provide significant constraints on the evolution of intra-oceanic subduction system in the North Qilian orogenic belt during the Early Paleozoic era.

关键词：北祁连山形成时代蛇绿岩构造北祁连造山带中国净重板块俯冲

Vitapex与三联抗生素糊剂应用于牙髓血运重建术中的临床疗效

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当代医学 2024年第10期30卷 62-65页

作者：夏晓宏李惠张晴枣庄市口腔医院儿童口腔科山东枣庄277103

目的探讨Vitapex、三联抗生素糊剂(TAP)应用于牙髓血运重建术中的临床疗效。方法选取2019年4月至2020年10月枣庄市口腔医院收治的100例根尖周炎或年轻恒牙牙髓炎患儿作为研究对象,采用随机数字表法分对照组与观察组,各50例。对照组采用... 详细信息

目的探讨Vitapex、三联抗生素糊剂(TAP)应用于牙髓血运重建术中的临床疗效。方法选取2019年4月至2020年10月枣庄市口腔医院收治的100例根尖周炎或年轻恒牙牙髓炎患儿作为研究对象,采用随机数字表法分对照组与观察组,各50例。对照组采用ATP作为根管消毒剂,观察组采用Vitapex作为根管消毒剂,比较两组临床疗效、牙根生长发育状况、治疗满意度及不良反应发生率。结果观察组治疗总有效率为96.00%,高于对照组的78.00%,差异有统计学意义(P<0.05)。观察组牙体变色率为2.00%,低于对照组的18.00%,差异有统计学意义(P<0.05)。治疗后,两组牙根管壁增厚均厚于治疗前,牙根长度均长于治疗前(P<0.05),但组间比较差异无统计学意义。治疗后,两组龈沟液碱性成纤维细胞生长因子(bFGF)、血管内皮生长因子(VEGF)水平均高于治疗前,且观察组高于对照组,差异有统计学意义(P<0.05)。两组不良反应发生率比较差异无统计学意义。结论与TAP相比,Vitapex应用于牙髓血运重建术中的疗效更理想,并对牙根生长发育有促进效果,美观度和患者接受度等均更高,值得临床推广应用。

关键词：三联抗生素糊剂 Vitapex 根管消毒剂牙髓血运重建术牙根

Core-shell structured MoS_2@S spherical cathode with improved electrochemical performance for lithium-sulfur batteries

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Journal of Materials Science & Technology 2018年第10期34卷 1912-1918页

作者： Songpu Cheng xiaohong xia Hongbo Liu Yuxi Chen College of Materials Science and Engineering Hunan University

To suppress shuttling effect and improve electrochemical performance of the sulfur cathode for lithium- sulfur batteries, core-shell structured MoS2 @S spherical cathode has been synthesized through a chemical route using MnC03 as template. The MoS2 shells consist of MoS2 nanosheets. For comparison, MoS2/S cathode has also been synthesized through melting and diffusion of sulfur to commercial MoS2 pow-ders. The electrochemical performance of the MoS2@S and MoS2/S cathodes have been evaluated using cyclic voltammetry, discharge/charge cycling, electrochemical impedance spectroscopy coupled with impedance fitting. The electrochemical performance of the MoS2@S spherical cathode has been much improved compared with that of MoS2/5. The capacity of the MoS2 @S spheres can reach 1185.7 mA h g^-1 at 0.2 C and 955.1 mA h g^-1 at 1 C with initial-cycle coulombic efficiency of 90%. The capacity fading of each cycle is 0.1% during 200 lithiation/delithiation cycles. The MoS2 @S spherical cathode with high cyclic capacity and stability is promising cathode candidate for lithium-sulfur batteries.

关键词： Core-shell particle Electrochemical property Electrode MoS2 Sulfur

Electroless deposition of Au nanoparticles on reduced graphene oxide/polyimide film for electrochemical detection of hydroquinone and catechol

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Frontiers of Materials Science 2017年第3期11卷 262-270页

作者： Xuan SHEN xiaohong xia Yongling DU Chunming WANG College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China

An electrochemical sensor for determination of hydroquinone （HQ） and catechol （CC） was developed using Au nanoparticles （AuNPs） fabricated on reduced graphene oxide/polyimide （PIIRGO） film by electroless deposition. The electrochemical behaviors of HQ and CC at PIIRGO-AuNPs electrode were investigated by cyclic voltammetry （CV） and differential pulse voltammetry （DPV）. Under the optimized condition, the current responses at PI/RGO-AuNPs electrode were linear over ranges from 1 to 654 mol/L for HQ and from 2 to 1289 mol/L for CC, with the detection limits of 0.09 and 0.2 mollL, respectively. The proposed electrode exhibited good reproducibility, stability and selectivity. In addition, the proposed electrode was successfully applied in the determination of HQ and CC in tap water and the Yellow River samples.

关键词： electroless Au nanoparticles hydroquinone catechol sensor

牙髓血运重建术联合二联抗生素糊剂治疗年轻恒牙牙髓坏死的效果

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当代医学 2024年第3期30卷 164-167页

作者：李惠夏晓宏胡娜娜枣庄市口腔医院儿童口腔科山东枣庄277103

目的探讨牙髓血运重建术联合二联抗生素糊剂(DAP)治疗年轻恒牙牙髓坏死的效果。方法选取2020年1月至2022年1月于枣庄市口腔医院接受治疗的100例年轻恒牙牙髓坏死患者作为研究对象,按照随机数字表法分为对照组与研究组,每组50例。对照组... 详细信息

目的探讨牙髓血运重建术联合二联抗生素糊剂(DAP)治疗年轻恒牙牙髓坏死的效果。方法选取2020年1月至2022年1月于枣庄市口腔医院接受治疗的100例年轻恒牙牙髓坏死患者作为研究对象,按照随机数字表法分为对照组与研究组,每组50例。对照组采用牙髓血运重建术常规三联抗生素糊剂(TAP)封药治疗,研究组采用牙髓血运重建术联合DAP治疗,比较两组治疗前后龈沟液生长因子水平、牙髓相关临床指标及不良反应发生率、治疗满意度。结果治疗后,两组血管内皮生长因子(VEGF)、表皮生长因子(EGF)、碱性成纤维细胞生长因子(bFGF)水平均高于治疗前(P<0.05),但两组组间比较差异无统计学意义。治疗后,两组根管壁厚度均厚于治疗前,牙根长度均长于治疗前,视觉模拟评分法(VAS)评分均低于治疗前,差异有统计学意义(P<0.05);但两组组间比较差异无统计学意义。两组不良反应发生率比较差异无统计学意义。研究组治疗满意率为96.00%,高于对照组的80.00%,差异有统计学意义(P<0.05)。结论年轻恒牙牙髓坏死患者接受牙髓血运重建术联合DAP治疗与牙髓血运重建术常规TAP封药治疗效果相当,均可改善恒牙牙髓坏死情况,但牙髓血运重建术联合DAP可降低不良反应发生风险,提升患者治疗整体满意度,值得临床推广应用。

关键词：年轻恒牙牙髓坏死牙髓血运重建术二联抗生素糊剂生长因子不良反应治疗满意度

Fundamental Basis for Distinctive Sensing of H_(2) in Humid Environment

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Energy & Environmental Materials 2018年第3期1卷 174-178页

作者： Zhuo Wang Mengjie Deng xiaohong xia Yun Gao Guosheng Shao State Center for International Cooperation on Designer Low-carbon&Environmental Materials Zhengzhou University100 Kexue AvenueZhengzhou 450001China Zhengzhou Materials Genome Institute ZhongyuanzhiguXingyang 450100China Ministry-of-Education Key Laboratory for Green Preparation and Application of Functional Materials Hubei Collaborative Innovation Center for Advanced Organic Chemical MaterialsSchool of Materials Science&EngineeringHubei UniversityWuhan 430062China

Accurate sensing of trace amount of hydrogen without interference from environment is highly desirable in timely detection of possible leakage when using hydrogen as a clean energy *** in air is usually considered as ... 详细信息

关键词： DFT simulation humidity hydrogen senor room temperature Schottky barrier

Fullerene(C_(60)) Nanowires: The Preparation,Characterization, and Potential Applications

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Energy & Environmental Materials 2020年第4期3卷 469-491页

作者： xiao Fan Navneet Soin Haitao Li Hua Li xiaohong xia Junfeng Geng Institute for Materials Research and Innovation Institute for Renewable Energy and Environmental TechnologiesUniversity of BoltonBolton BL35ABUK School of Engineering Ulster UniversityNewtownabbey Belfast BT370QBUK School of Chemistry and Chemical Engineering Jiangsu Normal UniversityXuzhou 221116China College of Life and Environmental Sciences Minzu University of ChinaBeijing 100081China School of Materials Science and Engineering Hubei UniversityWuhan 430062China

Fullerene(C_(60))nanowires have attracted significant attention in the past two decades due to their outstanding chemical and physical properties,which render the material a wide range of potential *** effort has been devoted to exploring the growth methods,structural and compositional characterizations,and application-related investigations of this novel carbon ***,we present a review of C_(60)nanowires in which we will first describe the recent development in the material preparations,analytical techniques,crystal structures,chemical compositions,and the investigations of polymerization ***,we will discuss the mechanistic studies on the nanowires’growth as the mechanism research is of great importance for their size control,large-scale preparation,and for the exploration of applications in a wide range of ***,we will discuss the potential applications in several directions,including optical,electrical,mechanical,and biological fields,as well as our perspectives to future developments.

关键词： C_(60)nanowires fullerene nanotechnology nanowire science