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Preparation of Y_2O_3 Nanoparticles organosol by Microemulsion Method

Journal of Rare Earths 2004年第1期22卷 140-142页

作者：王进贤董相廷闫景辉樊秀珍冯秀丽洪广言 College of Materials and Chemical Engineering Changchun Institute of Applied Chemistry

Y 2O 3 nanoparticles organosol coated with DBS was prepared by microemulsion method. The optimum preparative conditions of Y 2O 3 nanoparticles organosol were obtained. TEM analysis indicates that the prepared Y 2O 3 nanoparticles are spherical in shape. The size is about 5 nm. The size distribution is in the narrow range and no agglomerates are observed. Y 2O 3 nanoparticles coated with DBS are easy to dissolve in weak polar solvents.

关键词： inorganic non metallic materials yttria organosol nanoparticles microemulsion method rare earths

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Efficient Preparation of Metal organosols by Phase Transfer

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Chinese Journal of Chemistry 2005年第5期23卷 511-516页

作者：赵继宽陈晓杨春杰隋震鸣张国栋柴永存刘杰 KeyLaboratoryofColloidandInterfaceChemistry(ShandongUniversity) MinistryofEducationJinanShandong250100China

organosols of silver and gold nanoparticles stabilized by sodium oleate were prepared with high efficiency by simple phase transfer of their hydrosols to isooctane. Concentrations of sodium oleate and magnesium chloride have crucial effects on the phase transfer efficiency. UV‐visible absorption spectroscopy and transmission electron microscopy have been used to characterize the nanoparticles. A possible phase transfer mechanism was proposed based on the anchoring positions of oleate deduced by molecular modeling calculations.

关键词： nanoparticle organosol phase transfer molecular modeling sodium oleate

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An Efficient Route to Prepare Metal organosols by Phase Transfer Procedure

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Chinese Chemical Letters 2005年第4期16卷 557-560页

作者： JiKuanZHAO XiaoCHEN ChunJieYANG ZhenMingSUI YongCunCHAI GuoDongZHANG JieLIU KeyLaboratoryofColloidandInterfaceChemistry（ShandongUniversity） MinistryofEducationJinan250100

Silver and gold organosols are easily prepared by transferring nanoparticles from aqueous phase into isooctane with high efficiency (>90%). Concentrations of sodium oleate and magnesium chloride have crucial effects on the transfer efficiency. Based on the UV-visible absorption spectra, TEM micrographs of nanoparticles, as well as molecular modeling calculation about the adsorption conformation of sodium oleate molecules, a possible phase transfer mechanism is proposed.

关键词： Nanoparticles organosol phase transfer sodium oleate.

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Effect of hot-water extraction of sugar maple on organosolv delignification and lignin recovery

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Journal of Bioresources and Bioproducts 2016年第1期1卷 22-29页

作者： Chen Gong Biljana Bujanovic Department of Paper and Bioprocess Engineering SUNY-ESF SyracuseNY China National Pulp and Paper Research Institute BeijingChina

This paper reported a gradual disassembly of the chemical components of hardwood,starting with hot-water extraction(HWE)for the removal of hemicelluloses,followed by organosolv delignification to remove the *** mild acid conditions,in addition to hemicelluloses,lower molecular weight lignin fractions were removed(~15%of the total lignin)in the HWE pre-treatment;also,the cleavage of the acid-labile lignin-carbohydrate bond took place to some *** a result,the HWE pretreatment promoted the subsequent delignification process and facilitated the lignin recovery from the spent liquor,in terms of higher delignification efficiency and higher purity of the lignin recovered from the spent *** effects of the HWE pre-treatment prior to the delignification process were investigated in this study for both the oxygen-pressurized acetone-water(AWO)and the ALCELL processes,with focuses on the delignification efficiency and the properties of the lignin recovered from the process spent liquor.

关键词： Hot water extraction wood organosol Delignification Lignin recovery Sugar maple Acetone ALCELL

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