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Preparation and Characterization of ZrO_2 Nanoparticles Capped by Trioctylphosphine Oxide (TOPO)

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Journal of Wuhan university of technology(Materials Science) 2011年第4期26卷 611-614页

作者：马剑琪 school of Chemistry and environmental Science Shaanxi University of Technology State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences

Monodisperse ZrO2 nanoparticles capped by trioctylphosphine oxide （TOPO） were prepared in non-aqueous solvent using in-situ synthesis method. Transmission electron microscopy（TEM）, X-ray diffraction（XRD）, X-ray photoelectron spectrometer（XPS）, Fourier transformation infrared spectroscopy （FTIR）, and thermogravimetric analysis（TGA） were adopted to characterize and investigate the size, structure, composition, and the binding manners between organic capping agent TOPO and inorganic ZrO2 nanocores of the as-prepared nanoparticles. In addition, the nanoparticles were also studied to determine their solubility and relative stability. The experimental results show that the prepared nanoparticles contain about 25% organic capping shell TOPO, 75% inorganic ZrO2 nanocores, and can be easily dissolved and be stably disersed in non-polar organic solvents.

关键词： ZrO2 nanoparticles trioctylphosphine oxide (TOPO) monodisperse solubility

Support vector machine for SAR/QSAR of phenethyl-amines

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Acta Pharmacologica Sinica 2007年第7期28卷 1075-1086页

作者： Bing NIU~2,Wen-cong LU~(2,3,6),Shan-sheng YANG~2,Yu-dong CAI~(3,4,6),Guo-zheng LI~5 ~2 College of Material Science and engineering,Shanghai university,Shanghai 200444,china ~3 Laboratory of chemical Data mining,Department of Chemistry,College of Sciences,Shanghai university,Shanghai 200444,china ~4 Department of Combinatorics and Geometry,CAS-MPG Partner Institute for Computational Biology,Shanghai Institutes for Biological Sciences,Chinese Academy of Sciences,Shanghai200031,china ~5 school of Computer Science and engineering,Shanghai university,Shanghai 200072,china College of Material Science and engineering Shanghai University Shanghai China Department of Chemistry Laboratory of Chemical Data Mining College of Sciences Shanghai University Shanghai China Department of Combinatorics and Geometry CAS-MPG Partner Institute for Computational Biology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences Shanghai China school of Computer Science and engineering Shanghai Univeristy Shanghai China

Aim:To discriminate 32 phenethyl-amines between antagonists and agonists,and predict the activities of these ***:The support vectormachine (SVM) is employed to investigate the structure-activity relationship(SAR)/quantitative structure-activity relationship (QSAR) of phenethyl-aminesbased on molecular ***:By using the leave-one-out cross-vali-dation (LOOCV) test,1 optimal SAR and 2 optimal QSAR models for agonists andantagonists were *** accuracy of prediction for the classification ofphenethyl-amines by using the LOOCV test is 91.67%,and the accuracy of predic-tion for the classification of phenethyl-amines by using the independent test is100%;the results are better than those of the Fisher,the artificial neural network(ANN),and the K-nearest neighbor models for this real world *** RMSE(root mean square error)of antagonists' QSAR model is 0.5881,and the RMSE ofagonists' QSAR model is 0.4779,which are better than those of the multiple linearregression,partial least squares,and ANN models for this real world ***:The SVM can be used to investigate the SAR and QSAR of phenethyl-amines and could be a promising tool in the field of SAR/QSAR research.

关键词： support vector machine QSAR phenethylamines antagonists agonists

STUDY FOR NATURAL GAS HYDRATE CONVERSED FROM ICE

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化工学报 2003年第Z1期54卷 23-28页

作者： WANG Shengjie, SHEN Jiandong, HAO Miaoli and LIU Furong (school of environmental and chemical engineering, Xi’an Jiaotong university, Xi’an 710049, Shaanxi, china) school of environmental and chemical engineering Xi'an Jiaotong University Xi'an 710049 Shaanxi China

Natural gas hydrates are crystalline clathrate compounds composed of water and gases of small molecular diameters that can be used for storage and transport of natural gas as a novel method. In the paper a series of experiments of aspects and kinetics for hydrate formed from natural gas and ice were carried out on the industrial small scale production apparatus. The experimental results show that formation conditions of hydrate conversed from ice are independent of induction time, and bigger degrees of supersaturation and supercooling improved the driving force and advanced the hydrate *** is also favorable for ice particle conversion to hydrate. In addition, it was found there have an optimal reaction time during hydrate formation.

关键词： natural gas hydrate, formation, ice, supersuturation, supercooling, superpressure

Theoretical studies of the transport property of oligosilane

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Science china Chemistry 2010年第12期53卷 2571-2580页

作者： ZHANG GuiLing 1,YUAN HongLiang 1,ZHANG Hui 1,SHANG Yan 1,SUN Miao 1,LIU Bo 1 & LI ZeSheng 2 1 College of chemical and environmental engineering,Harbin university of Science and technology,Harbin 150080,china 2 State Key Laboratory of Theoretical and Computational Chemistry Institute of Theoretical Chemistry,Jilin university,Changchun 130023,china College of chemical and environmental engineering Harbin University of Science and Technology Harbin China State Key Laboratory of Theoretical and Computational Chemistry Institute of Theoretical Chemistry Jilin University Changchun China

The transport mechanisms of four-conjugated systems were comparatively studied by combining ATK and Gaussian 03 *** was found that the charge-doped oligosilane behaved in a different way from the boron doped and phosphorus doped oligosilanes in terms of the transmission *** charge-doped oligosilane showed almost no conductivity owing to the damage of the electron transfer path by *** contrast,the boron doped and phosphorus doped oligosilanes were demonstrated to be good semiconductors and NDR behavior was observed for *** is a reasonable result after the analysis of the transmission spectra,MPSH states,energy gap,conjugation effect,and scattering effect.

关键词： theoretical study transport property oligosilane

Construction and evaluation of reference standards for detection and quantification of Klebsiella pneumoniae using real-time PCR

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Journal of Pharmaceutical Analysis 2010年第3期22卷 183-187页

作者： Fei-Long Sun1,2,Min Jin3,Zhi-Gang Qiu3,Zhi-Qiang Shen3,Xin-Wei Wang3,Jun-Wen Li31.school of Life Science and technology,Xi’an Jiaotong university,Xi’an 710049 2.school of environmental and chemical engineering,Xi’an Polytechnic university,Xi’an 710048 3.Institute of Environment and Health,Tianjin 300050,china school of Life Science and technology Xi'an Jiaotong University Xi'an 710049 China school of environmental and chemical engineering Xi'an Polytechnic University Xi'an 710048 China Institute of Environment and Health Tianjin 300050 China

Objective To construct reference standards for detection and quantification of Klebsiella pneumoniae(***)with SYBR Green I-based real-time PCR *** Primers were designed based on the published sequence of the phoE gene of *** standard was prepared by cell culture,PCR and T-A clone methods,and was identified by colony PCR and DNA *** The standard curve showed a very good linear negative regression between threshold cycle(Ct)and Log starting quantity of copy *** detection range was from 5.2 to 5.2×106 copies per reaction,and the detection limit was 6 copies per *** coefficients of variance(CVs)of three parallel experiments were in the range of 0.05%-0.91%.Conclusion The reference standards have high stability and *** can be used in the quantitative detection of ***.

关键词： cloning vector Klebsiella pneumoniae real-time PCR standard

Adsorption of surfactants onto acrylic ester resins with different pore size distribution

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Science china Chemistry 2006年第5期49卷 445-453页

作者： YANG Weiben1,2,3,LI Aimin1,3,CAI Jianguo1,3,MENG Guanhua1,3 & ZHANG Quanxing1,3 1. State Key Laboratory of Pollution Control and Resource Reuse,school of the Environment,Nanjing university,Nanjing 210093,china 2. Nanjing College of chemical technology,Nanjing 210048,china 3. Jiangsu engineering & technology Research Center for Organic Toxicant Control and Resource Reuse,Nanjing 210038,china State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing China Nanjing College of chemical technology Nanjing China Jiangsu engineering & technology Research Center for Organic Toxicant Control and Resource Reuse Nanjing China

In this study, a series of acrylic ester resins with different pore size distribution were prepared successfully by varying the type and the amount of pore-forming agents. In order to inves-tigate the adsorption behavior and mechanism of surfactants on acrylic ester resins, three kinds of surfactants were utilized as adsorbates that were sodium 6-dodecyl benzenesulfonate (6-NaDBS), sodium 1-dodecyl benzene sulfonate (1-NaDBS) and sodium 1-dodecyl sulfonate, respectively. It was observed that the surface area was available in a particular pore size and an appropriate pore size of resins appeared to be more important for the adsorption of surfactants. As compared to commercial acrylic ester resins XAD-7 and HP2MG, 50# and 38# resins exhibited more excellent adsorption properties toward 1-NaDBS and 6-NaDBS. The experimental equilibrium data were fitted to the Langmuir, and double-Langmuir models. Two models provided very good fittings for all resins over the temperature range studied. The investigation indicated that electrostatic attraction and hydrogen bond between resins and surfactants were the main forces and had an obvious effect on adsorption proc-ess.

关键词： acrylic ester resin, surfactant, adsorption, pore size distribution, isotherm.

Study on the Waste Recycling and Reuse Patterns in Coal Mines

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Study on the Waste Recycling and Reuse Patterns in Coal Mine...

Experimental Study on Decolorization and Degradation of Reactive Brilliant Red X-3B in a White Rot Fungal Biofilm Reactor

2010 2nd IEEE International Conference on Advanced Management Science（IEEE ICAMS 2010）

作者： Zhenling Liu school of Management Henan university of technology Zhengzhou china Zhengquan Guo school of Management china university of mining & technology(beijing) beijing china Gang Li Department of Resources and environmental engineering Henan Institute of engineering Zhengzhou china Wenbo Tan school of Management china university of mining & technology (beijing) beijing china

Since 2006,china has become the largest coal production and consumption country in the ***,the coal mining waste has become the greatest threaten to the environment and *** to the recycling economy thought,many coal mining waste can be reused and recycled that can produce great benefits for enterprises and *** this paper,the recycling economy thought is introduced for its ***,based on the thought,the reuse and recycles of the coal mining waste practice are assigned according to the waste *** research result indicated that the recycling economy is the best chose for the economy and society sustainable development.

关键词： coal mining waste,recycling economy,industrial chains material flow

来源： cnki会议评论

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Journal of Shanghai university(English Edition) 2001年第3期5卷 260-264页

作者： HUANG Min sheng, HUANG Rong, CHENG Yong qian, ZHANG Guo ying school of environmental and chemical engineering, Shanghai university, Shanghai 200072, china school of environmental and chemical engineering Shanghai University Shanghai China

Experimental results of an azo dye(reactive brilliant red X 3B, RBR X 3B) decolorization and degradation in a white rot fungal biofilm reactor were introduced and discussed. The fungal biofilm reactor is highly potential for dye decolorization and degradation with the highest decoloring rate of 95% within 96 hours reaction time at initial pH 4.5 under high nitrogen level (HN) (24 mmol/L ammonium tartrate) condition. Experimental conditions, such as nutrient nitrogen levels in reaction mixture and initial pH, significantly affected dye decolorization and degradation. Effluents from this biofilm reactor can be well treated to meet the discharging requirements by use of chemical *** X 3B was first absorbed onto fungal biomass and then degraded gradually. The SH 13 fungus monopolized the biofilm throughout the experiments, though the reactor was exposed to open air for 4 months.

关键词： white rot fungi dye decolorization degradation

Biological exposure models for oil spill impact analysis

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Journal of environmental Sciences 2000年第4期12卷 482-485页

作者： XIONG De qi 1, Mark Reed 2, Narve Ekrol 2 (1. Department of Marine environmental engineering, Dalian Maritime university, Dalian 116026, china E mail: deqi@*** 2. Department of environmental engineering, SINTEF Applied Chemistry Institut 大连海事大学辽宁大连 1 1 6 0 2 SINTEF Applied Chemistry Institute 挪威 Trondheim 70 3 4

The oil spill impact analysis (OSIA) software system has been developed to supply a tool for comprehensive, quantitative environmental impact assessments resulting from oil spills. In the system, a biological component evaluates potential effects on exposed organisms based on results from a physico chemical fates component, including the extent and characteristics of the surface slick, and dissolved and total concentrations of hydrocarbons in the water column. The component includes a particle based exposure model for migratory adult fish populations, a particle based exposure model for spawning planktonic organisms (eggs and larvae), and an exposure model for wildlife species (sea birds or marine mammals). The exposure model for migratory adult fish populations simulates the migration behaviors of fish populations migrating to or staying in their feeding areas, over wintering areas or spawning areas, and determines the acute effects (mortality) and chronic accumulation (body burdens) from the dissolved contaminant. The exposure model for spawning planktonic organisms simulates the release of eggs and larvae, also as particles, from specific spawning areas during the spawning period, and determines their potential exposure to contaminants in the water or sediment. The exposure model for wild species calculates the exposure to surface oil of wildlife (bird and marine mammal) categories inhabiting the contaminated area. Compared with the earlier models in which all kinds of organisms are assumed evenly and randomly distributed, the updated biological exposure models can more realistically estimate potential effects on marine ecological system from oil spill pollution events.

关键词： oil spill biological exposure acute effects chronic accumulation migration of fish spawning of eggs and larvae habitat