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For Selected: Download Citations EndNote Ris BibTeX Toggle Thumbnails Select Preparation of Li4Ti5O12 by Solid-State Method and Exploration of Calcination Temperature LONG Ruilai, WU Xianming, WU Xiuting, YIN Caishuo Journal of Jishou University(Natural Sciences Edition)    2022, 43 (3): 72-78.   DOI: 10.13438/j.cnki.jdzk.2022.03.012 Abstract （470）      PDF（pc） （7320KB）（211）       Knowledge map    Save Li4Ti5O12 powders were prepared by solid-state reaction and two-step calcination method with Li2CO3 and TiO2 as starting materials and anhydrous ethanol as dispersant.The microstructure and morphology of the materials were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM).The electrochemical properties of the materials were tested by constant current charge-discharge,AC impedance and cyclic voltammetry.The results show that the pure phase Li4Ti5O12 with complete crystal structure could be synthesized after calcination at 800  ℃ for 6h,and uniform dispersion with particle size of 200~400 nm.The first reversible specific capacity of the Li4Ti5O12 sample was 157.67 mA·h/g at the rate of 0.5 C,and the coulombic efficiency was 96.1%,the capacity retention was 94.3% after 100 cycles.The first reversible specific capacity was 107.0 mA·h/g at the rate of 0.5C,the coulombic efficiency was 96.1% and capacity retention was 84.1% after 1 000 cycles. Reference | Related Articles | Metrics | Comments（0） Select Optimization Model for C4 Olefin Preparation Based on Random Forest and L-M Algorithm JIANG Zihao, REN Tao, ZHOU Qi, LUO Jiamian Journal of Jishou University(Natural Sciences Edition)    2022, 43 (3): 79-83.   DOI: 10.13438/j.cnki.jdzk.2022.03.013 Abstract （498）      PDF（pc） （548KB）（120）       Knowledge map    Save It is important to investigate the catalyst combination and temperature on the preparation of olefins by ethanol coupling.Firstly,ANOVA was used to screen the important influencing factors;then,the importance of the influencing factors on ethanol conversion and C4 olefin selectivity was analyzed by random forest algorithm:temperature>catalyst mass>ethanol concentration>Co loading>charging ratio;finally,multiple non-linear regression was performed by L-M algorithm,and the optimal C4 olefin yield was obtained with particle swarm algorithm.The optimal value was 42.548 5%. Reference | Related Articles | Metrics | Comments（0） Select Synthesis, Structure, and Photoluminescence Properties of Mn(II)-Based Metal Complex LIANG Yuxin, GAO Huizhi, WANG Xingyue, QI Zhikai Journal of Jishou University(Natural Sciences Edition)    2021, 42 (6): 36-40.   DOI: 10.13438/j.cnki.jdzk.2021.06.006 Abstract （830）      PDF（pc） （2500KB）（322）       Knowledge map    Save A novel Mn-based complex of Mn(choline)Cl3 (choline=C5H14NO) was synthesized by solvent evaporation. Single crystal X-ray diffraction analysis shows that the crystal structure of this complex consists of one-dimensional chains formed by the edge-shared [MnCl5O] octahedra, and these chains link each other with the adjacent ones into a three-dimensional network through intermolecular hydrogen bonds.UV-vis absorption spectrum and photoluminescence spectrum shows that this complex exhibited high efficient red-light emission induced by the d-d electron transition of (t2g)3(eg) to (t2g)4(eg)1. The photoluminescence quantum yield reaches to 37.32% and the average lifetime is 1.18 ms. In addition, it has excellent thermal stability (300 ℃). These results show that this Mn-based complex has potential applications in the field of optoelectronic devices. Reference | Related Articles | Metrics | Comments（0） Select Effect of Glucose on Li1.2Ni0.2Mn0.6O2 Lithium-Rich Manganese Cathode Materials WANG Lei,XIANG Yanhong,LIAO Qijun,TIAN Lin，WU Xianwen,WU Xianming,XIONG Lizhi,HE Zeqiang Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2019.03.010 Select Effect of Different Factors on Adsorption of Malachite Green by Loropetalum Chinense var. Rubrum LI Fen,LIN Yonghui,HE Xingbing Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2019.03.011 Select Electrochemical Reduction of CO2 at Copper Nanoparticles Cathode in Ionic Liquid BMIMBF4:Synthesis of Dimethyl Carbonate YUAN Chuping,LI Sue,ZHANG Yuting,FENG Qiuju,LIU Suqin Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2019.02.011 Select Preparation of Tannin-Immobilized on Adlocellulose Resin and Its Adsorption for Berberine Hydrochloride ZHOU Peng,PENG Pingying,YUAN Hua,PENG Zhiyuan,ZHONG Xin Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2019.02.012 Select Research Progress of Lithium Titanium Phosphate as Anode Material for Aqueous Lithium Ion Battery LIU Lu,JIANG Zhen,LIU Na,HE Zhangxing Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2019.02.013 Select Study on Synthesis,Characterization and Luminescence Property of Terbium-Enrofloxacin Rare Earth Complex WANG Ying,WANG Lifang,XIAO Yue,MA Dongyun3,ZHANG Yunjie,YUAN Huan,DU Yongxiang Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2019.01.017 Select Synthesis of CoMoO4 and Its Application in Sodium/Lithium Ion Battery CHEN Meiyan,YANG Qing,WU Xianwen,ZOU Li,YAO Zhengxi,LI Fangning Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2019.01.018 Select Synthesis and Properties of Fluorescein Fluorescent Materials LIU Limin,SHI Jianjun,ZHANG Xianfu Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2019.01.019 Select Inhibitory Kinetic Fluorimetric Determination of Bisphenol A Based on Oxidation of Carbon Quantum Dots with Hydrogen Peroxide WEI Na,TANG Jiaorong,YU Shuyi,QIU Ziqing,HUANG Xiaoxia,WANG Yilin Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2018.04.014 Select Determination of Trace Elements in High ConductivityCopper by Matrix Matching of ICP-AES LIU Bangfu Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2018.04.015 Select Synthesis,Structure and Fluorescence Property of a Zinc Coordination Complex Based on a Flexible Ligand 1,5-Bis (2-Ethylbenzimidazole) Pentane ZHANG Shuaichao,ZHANG Zhengrui,YU Shuqi,ZHANG Yishu,HAN Chao,WEN Yuanyuan,LI Chen,MENG Wei Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2018.02.015 Select Preparation of Co3O4 Through Hydrothermal Method and Its Electrochemical Performance SHANG Jinyan,WU Xianwen,TANG Yue Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2018.01.016 Select Experimental Study of Static Adsorption of CH4 and  CO2 Mixture CHEN Shuhua,LIU Xuewu,ZOU Jiupeng,WANG Xiaojuan,ZHENG Guofeng,WANG Rui Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2018.01.015 Select Synthesis of Dimethyl Carbonate from Carbon Dioxide and Methanol Catalyzed by  Nano-Sized Cerium Dioxide LIU Renbo,FENG Qiuju,LI Xin,XIAO Yonglai Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2018.01.016 Select Submerged Fermentation Process  and  Compound Debittering Methods for Ponkan Fruit Vinegar ZOU Haiying,YU Ji,YU Zhaoshuo,ZHANG Min,LIU Fang,MA Chengjin Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2018.01.017 Select Optimization of Ultrasonic-assisted Extraction of Yellow Pigment from Peel of Trichosanthes kirilowii Maxim QUAN Ruolin,HE Haibo,ZHANG Shan,XIONG Lizhi,ZHU Jieying Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2017.06.014 Select Detection of Preservatives in Beverages Through Capillary Electrophoresis CHEN Linqing,YANG Kun,SU Anmei,ZHONG Qingmei,WANG Yilin Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2017.06.015 Select Determination of Trace Manganese in Drinking Water RAN Maowu，SHE Yanchao，LI Yong Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2017.05.016 Select Effects of Sugaring on the Physicochemical Properties of Home-Brewed Wine LIU Haichun,YANG Dongmei,LI Junnian,YE Qing,ZHANG Ying,YAO Meihua,WU Siyao Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2017.05.017 Select Review of Theoretical Research on Rutile TiO2(011) Surface YUAN Feng，LU Shixiang Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2017.04.011 Select Urease Inhibition Evaluation of Sophora Flower Bud Extracts YUE Qinqin，ZHANG Hongyu，YANG Meihui，XIE Meiqun，LI Qian，DENG Min，XIAO Zhuping Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2017.04.012 Select Comparison of the Depainting Effects of Different Paint Removers WU Zhifu,LIANG Liuqing,CHEN Zhenxing Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2017.02.013 Select Semi Bionic Extraction and Ultrasonic-Assisted Semi Bionic Extraction of Flavonoids from Eucommia Ulmoides DENG Youlin,TANG Shi,WANG Meichun,YANG Panpan Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2017.02.014 Select Research Progress of Transition Metal Oxide Electrode Materials for Supercapacitor Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2017.02.015 Select Microwave Synthesis of Bismuth Aluminate Gel and Its Property on Bacteriostatic Action WU Zhifu Journal of Jishou University（Natural Sciences Edition)    DOI: DOI:10.3969/j.cnki.jdxb.2017.01.013 Select Synthesis of Apatite-Type LSO Electrolyte Doped Alkali Earth by Urea-Nitrate Combustion LI Wenzhao，HUANG Zhiliang，LU Mian，CHEN Changlian，ZHANG Zhanhui Journal of Jishou University（Natural Sciences Edition)    DOI: DOI:10.3969/j.cnki.jdxb.2017.01.014 Select Adsorption Performance of Methylene Blue by Carbon Materials Derived from Used Cigarette Filters LONG Qiuping,YANG Ning,NIE Qianwen,WANG Yaguang,HE Zeqiang Journal of Jishou University（Natural Sciences Edition)    DOI: DOI:10.3969/j.cnki.jdxb.2017.01.015 Select Preparation of Electrochemical DNA Sensors Based on PB-Au Nanocomposites FENG Chunliang,ZHANG Na,SUN Yue,WANG Yongbin,ZHOU Minghao Journal of Jishou University（Natural Sciences Edition)    2016, 37 (6): 50-55.   DOI: 10.3969/j.cnki.jdxb.2016.06.011 Abstract （1794）      PDF（pc） （4268KB）（1436）       Knowledge map    Save Thionine was firstly electropolymerized on the glassy carbon electrode (GCD) surface,and then prussian blue-gold nanocomposites (PB-Au) and gold nanoparticals (GN) were electrodeposited on modified electrode surface respectively.Finally,DNA probes (ssDNA) were conjugated with GN through Au-NH2 bond,and a DNA biosensor (GCE/PTh/PB-Au/GN/ssDNA) was prepared.The preparation processes of DNA biosensors were characterized by electrochemical impedance spectroscopy (EIS),cyclic voltammetry (CV) and differential pulse voltammetry (DPV).The DNA was detected with the sensor by differential pulse voltammetry (DPV) using methylene blue (MB) as hybridization indicator.The results exhibited linear response (r=0.994) to DNA and slope of curve (-13.4 μA/decade) in the concentration range from 1.0×10-14~1.0×10-6 mg/L with a lower detection limit of 1.0×10-14 mg/L.The sensor prepared is sensitive and accurate which makes it applicable not only for gene detection but also for detection of heavy metal ion and organic pollutant. Reference | Related Articles | Metrics | Comments（0） Select Separation Technology of Oleanolic Acid in Akebia Trifoliata Peel by Macroporous Resin ZHANG Xiaoxu，OUYANG Yuzhu，NIE Pengcheng，TANG Ningmei Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.06.012 Select Copper-Catalyzed Cyclization Reaction of N-Aryl Acrylamide and Acetone to Synthetize Indolone DENG Youlin,YANG You,LI Liyang,WANG Liangneng,LI Zengzeng,FU Meiling,TANG Shi Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.05.009 Select Separation and Preparation of a C15 Triolefinic Urushiol from Raw Lacquer HE Qian，ZHENG Jie，TIAN Yungang，LIU Yihan，WANG Jianxia，WEI Hua Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.05.010 Select Sol-Gel Preparation and Characterization of KxMnO2 HE Pingxiang,LIU Bo,YANG Yuhuan,QIU Youyou,ZHAO Jiuyi,LIU Shenglin,JIANG Jianbo Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.05.011 Select Method for Analysing and Measuring BTEX by Gas Chromatographic LIU Jiao,ZHA Chong,DU Yatian Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.04.012 Select Removal of Ca and Mg Ions from Industrial Manganese Sulfate Solution by Solvent Extraction DAI Dongyang，LIU Zhixiong，SUN Lin，TANG Liandong，ZOU Xiaoyong Journal of Jishou University（Natural Sciences Edition)    DOI: 10.3969/j.cnki.jdxb.2016.05.013 Select Catalytic Performance of Tungstate/Molybdate/Phosphotungstic/Phosphomolybdate Acid Bismuth Salt HAN Yu-Zhe, WANG De-Hua, LI Da-Da, WANG Hong-Xiang, CAI Tie-Jun, DENG Qian journal6    2015, 36 (3): 61-67.   DOI: 10.3969/j.cnki.jdxb.2015.03.014 Abstract （3501）      PDF（pc） （1447KB）（2726）       Knowledge map    Save Bi2WO6,Bi2MoO6,BiPW12O40 and BiPMo12O40 catalysts were synthesized by hydrothermal and co-precipitation method and characterized by IR,UV-vis,FL,SEM and X-ray power diffraction (XRD).The relationship between catalytic performance of catalysts and preparation conditions,calcination temperature and different substrates was explored.The best degradation of RhB (100 mL 4 mg/L) achieved 98.1% over the unbaked Bi2WO6 with the W/Bi molar rate 1∶2,which also had  certain catalytic effect for degrading methyl orange and methylthionine chloride.The tungstate bismuth and molybdate bismuth catalysts had a good catalytic effect for degrading RhB,methyl orange and methylthionine chloride as well.The catalytic performance of phosphomolybdate bismuth was poorer. Reference | Related Articles | Metrics | Comments（0） Select Optimization on Adsorption Separation Technology of Total Polyphenol in Zanthoxylum Bungeagumby Response Surface Methodology LU Tao-Ling, OUYANG Yu-Zhu , ZHANG Xiao-Xu, TANG Xu-Wan journal6    2015, 36 (3): 68-72.   DOI: 10.3969/j.cnki.jdxb.2015.03.015 Abstract （2675）      PDF（pc） （919KB）（1451）       Knowledge map    Save With Zanthoxylum bungeagum seed as test raw material,adsorption separation technology of total polyphenol by macroporous resin was optimizated by response surface methodology on basis single-factor experiment.Influence of pH,adsorption temperature and time on extraction yield of total polyphenols was investigated.Mathematic model was established,and the significance testing and variance analysis were accomplished.Experimental results show that extraction ratio of total polyphenol was 3.862 7% at 70 ℃ adsouption in pH 6.0 for 90 min.The predicted value of experimental model was 3.929 7.Experimental results decreased by 0.062 5% in comparison with predicted content of model. Reference | Related Articles | Metrics | Comments（0） Select Iron-Carbon Micro-Electrolysis Process to Remove Cd/Zn/Pb in Wastewater LV Xing-Hao journal6    2015, 36 (3): 73-76.   DOI: 10.3969/j.cnki.jdxb.2015.03.016 Abstract （2573）      PDF（pc） （388KB）（1448）       Knowledge map    Save The wastewater from electrolysis-Zn factory was studied,and was treated by iron-carbon micro-electrolysis reactor.The effects of time,pH value,DO and the dosage of iron-carbon were investigated on the removing rate of Cd,Pb and Zn in the wastewater.The results show that the iron-carbon micro-electrolysis process can be effectively used for the treatment of heavy metal wastewater on the suitable conditions:pH value 3~5,staying reaction time 30 min,DO 5 mg/L and the dosage of iron-carbon 50 g/L.On the best condition,the removal rates of Cd,Pb and Zn reached 96.5%,91.1%,72.6% respectively. 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