|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Stripping of uranium from an ionic liquid medium by TOPO-modified supercritical carbon dioxide显示文摘UO2+2, which is extracted from the aqueous phase into the 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide(C2mim NTf2) ionic liquid phase with octyl(phenyl)-N,N-diisobutylcarbamoylmethylphosphine oxide(CMPO), can be stripped by supercritical CO2. Trioctylphosphine oxide(TOPO), the modifier added to the supercritical CO2 phase, enhances the stripping efficiency by up to 99%. | Jing Fu Qingde Chen Xinghai Shen | 2015 | Science China Chemistry2015，58，3： | 4 |
| 2 | A further understanding of the cation exchange mechanism for the extraction of Sr^(2+) and Cs^+ by ionic liquid显示文摘The cation exchange mechanism was further investigated during the extraction of Sr 2+ and Cs+ using the extractant dicyclo- hexano-18-crown-6 (DCH18C6) in an ionic liquid (IL)1-ethyl-3-methyimidazolium bis[(trifluoromethyl)sulfonyl]imide (C2 mimNTf2 ). The concentrations of both the cation C2 mim + and the anion NTf2 in aqueous phase were detected. The con-centration of NTf2 in the aqueous phase decreased as Sr2+ or Cs+ exchanged into the IL phase. Addition of C2 mim + or NTf2 as well as the variation of the solubility of C2 mimNTf2 influenced the extraction efficiency of Sr2+ or Cs+ . | SUN TaoXiang SHEN XingHai CHEN QingDe | 2013 | Science China Chemistry2013，56，6： | 4 |
| 3 | Solvent extraction of thorium(Ⅳ) using W/O microemulsion显示文摘The extraction of thorium(IV) was investigated using two types of W/O microemulsion,one of which was formed by a surface-active saponified extractant sodium bis(2-ethylhexyl) phosphate(NaDEHP) and the other was formed by a mixture of an anionic surfactant sodium bis(2-ethylhexyl) sulfosuccinate(AOT) and an extractant bis(2-ethylhexyl)phosphoric acid(HDEHP) as the cosurfactant.The extraction capacities of the above two systems were higher than that of the HDEHP extraction system.High concentration of NaNO 3 showed no influence on the extraction in the NaDEHP based W/O microemulsion system,whilst reduced the extractability in the AOT-HDEHP W/O microemulsion system.The mechanism in acidic condition was demonstrated by the log-log plot method.The structure of the aggregations and the water content in the organic phase after extraction were measured by dynamic light scattering and Karl Fischer water titration,respectively.It was found that NaDEHP based W/O microemulsion broke up after extraction,while AOT-HDEHP W/O microemulsion was reserved. | GAO Song SHEN XingHai CHEN QingDe GAO HongCheng | 2012 | Science China Chemistry2012，55，9： | 4 |
| 4 | Investigation on the extraction of strontium ions from aqueous phase using crown ether-ionic liquid systems显示文摘The extraction of strontium ions using DCH18C6 as the extractant and various ionic liquids(ILs) as solvents has been investigated.The distribution ratio of Sr2+ can reach as high as 103 under certain conditions,much larger than that in DCH18C6/n-octanol system.The extraction capacity depends greatly on the structure of ionic liquids.In Ils-based extraction systems,the extraction efficiency of strontium ions is reduced by increasing the concentration of nitric acid and can also be influenced directly by the presence of Na+ and K+ in the aqueous phase.It is confirmed that the extraction proceeds mainly via a cation-exchange mechanism. | XU Chao SHEN XingHai CHEN QingDe GAO HongCheng | 2009 | Science China Chemistry2009，52，11： | 3 |
| 5 | HMGB1 in health and disease显示文摘 | Rui Kang Ruochan Chen Qiuhong Zhang Wen Hou Sha Wu Lizhi Cao Jin Huang Yan Yu Xue-gong Fan Zhengwen Yan Xiaofang Sun Haichao Wang Qingde Wang Allan Tsung Timothy R. Billiar Herbert J. Zeh Michael T. Lotze Daolin Tang | 2014 | Molecular Aspects of Medicine2014，，： | 2 |
| 6 | Intracellular Hmgb1 Inhibits Inflammatory Nucleosome Release and Limits Acute Pancreatitis in Mice显示文摘 | Rui Kang Qiuhong Zhang Wen Hou Zhenwen Yan Ruochan Chen Jillian Bonaroti Preeti Bansal Timothy R. Billiar Allan Tsung Qingde Wang David L. Bartlett David C. Whitcomb Eugene B. Chang Xiaorong Zhu Haichao Wang Ben Lu Kevin J. Tracey Lizhi Cao Xue-Gong Fan M | 2013 | Gastroenterology2013，，： | 2 |
| 7 | Synthesis of Lanthanide β-Diketonates by Solid State Reaction at Low Heating Temperature显示文摘1IntroductionSincethe1950s,lanthanideβdiketonateshavebeenextensivelystudiedandwidelyapplied[1-3].Becauseofexcelentlaserprope... | Lü Jingci (School of Chemistry and Chemical Engineering, Shanghai University) Yong Kelan (School of Life Sciences, Shanghai University) Chen Junsheng Liang Chongshan Su Qingde (China University of Science and Technology) | 1999 | Advances in Manufacturing1999，，2： | 1 |
| 8 | Separation Processes in the presence of cyclodextrins using molecu- lar imprinting technology and ionic liquid cooperating ap- proach显示文摘 | Zhang Jingjing Shen Xinghai Chen Qingde | 2011 | Current Organic Chemistry2011，15，1： | 1 |
| 9 | Removal of major interference sources in aqueous near-infrared spectroscopy techniques显示文摘 | Da Chen Bin Hu Xueguang Shao Qingde Su | 2004 | Analytical and Bioanalytical Chemistry2004，，1： | 1 |
| 10 | A method for near-infrared spectral calibration of complex plant samples with wavelet transform and elimination of uninformative variables显示文摘 | Xueguang Shao Fang Wang Da Chen Qingde Su | 2004 | Analytical and Bioanalytical Chemistry2004，，5： | 1 |
| 11 | Formation of solid and hollow cuprous oxide nanocubes in water-in-oil microemulsions controlled by the yield of hydrated electrons显示文摘 | Qingde Chen Xinghai Shen Hongcheng Gao | 2007 | Journal of Colloid And Interface Science2007，，2： | 1 |
| 12 | Formation of nanotubes and secondary assemblies of cyclodextrins induced by BBOT显示文摘The study of cyclodextrin nanotubes is a significant topic among the self-assembly behaviors of cyclodextrins.We report herein the interaction of 2,5-bis(5'-tert-butyl-2-benzoxazoyl)thiophene(BBOT) with α-,β-,γ-cyclodextrins(CDs).It has been discovered that the reaction patterns of BBOT with CDs are remarkably different.α-CD forms a simple inclusion complex with BBOT in a stoichiometry of 1:2(guest:host).β-CD forms a 1:1 inclusion complex with BBOT at its low concentration.At higher concentration of BBOT,the nanotube and secondary assembly of β-CD are formed.As for γ-CD,the nanotube and secondary assembly are formed within the whole concentration range of BBOT studied.The structure of γ-CD nanotubes is different from that of β-CD nanotubes to a certain extent. | ZHANG JingJing,SHEN XingHai,WU AiHua,ZHANG ChunFen,CHEN QingDe & GAO HongCheng Beijing National Laboratory for Molecular Sciences Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China | 2010 | Science China Chemistry2010，53，9： | 0 |
| 13 | Adsorption of cesium using mesoporous silica gel evenly doped by Prussian blue nanoparticles显示文摘In this paper,a novel mesoporous silica gel evenly doped by Prussian blue nanoparticles(PBMSG) was successfully synthesized by using N,N-dimethylamide as template with a large Barrett-Emmett-Teller(BET) surface area of 505 m^(2)/g and an average pore size of 2.9 nm.The static adsorption experiments showed that the equilibration time of PBMSG for Cs^(+) was about 30 min.The adsorption isotherm of PBMSG for Cs^(+) accorded with Langmuir model and the theoretical maximum adsorption capacity was80.0± 2.9 mg/g.When the initial concentration of Cs^(+) was 1.00 mg/L,the adsorption partition coefficient Kd could reach 3.5 × 10^4 mL/g After adsorption,Cs+ could be eluted by dilute hydrochloric acid(pH2) with an efficiency of 89.8%,while no K^(+),Fe^(3+),Fe^(2+) was eluted.PBMSG exhibited good selectivity toward Cs^(+) and Rb^(+).In the presence of high concentration of K^(+),the selective adsorption of PBMSG could change the mass ratio of K^(+),Rb^(+) and Cs^(+) from 96.63:0.83:1.00-1.12:0.73:1.00.The separation of Cs^(+) and Rb^(+) from K^(+) with similar concentration(100 mg/g) was realized by column experiment.This indicated that PBMSG was suitable for rapid recovery of low concentration of rubidium and cesium from complex matrixes,such as wastewater and salt lake brine,etc. | Tianyu Yuan Qingde Chen Xinghai Shen | 2020 | Chinese Chemical Letters2020，31，10： | 0 |
| 14 | Physical and emulsifying properties of pea protein:influence of combined physical modification by flaxseed gum and ultrasonic treatment显示文摘This study characterized and compared the physical and emulsifying properties of pea protein(PP)and its modified proteins(ultrasound treated-PP(PPU),flaxseed gum(FG)treated PP(PPFG)and ultrasound treated-PPFG(PPFGU)).The results showed FG triggered the formation of loosely attached complex with PP via physical modification under gentle magnetic stirring at pH 7.0,while ultrasound played an important role in reducing protein size,increasing surface hydrophobicity and molecular fluidity onto oil-water interface.So ultrasound further enhanced the interaction of PP with FG,and produced the PPFGU complex with smaller droplet size,higherζ-potential and lower turbidity.Further,combination of FG and ultrasound improved the physical properties of PP with higher viscosity,stiffer gels(defined as higher elastic modulus),stronger hydrophobic properties,better thermal stability,and fast protein absorption rate.Therefore,the PPFGU coarse emulsion performed highest emulsifying activity index(EAI)and emulsion stability index(ESI)that the stabilized nanoemulsion obtained smallest droplet size,higherζ-potential,and longest storage stability.The combination of FG and ultrasonic treatment will be an effective approach to improving the emulsifying property and thermal stability of PP,which can be considered as a potential plant-based emulsifier applied in the food industry. | Jia Yang Fenghong Huang Qingde Huang Da Ma Yashu Chen Dengfeng Peng Xiao Yu Qianchun Deng Fang Geng | 2023 | Food Science and Human Wellness2023，12，2： | 0 |
| 15 | Orthogonal array design for the optimization of stripping Sr(Ⅱ) from ionic liquids using supercritical CO2显示文摘The strontium ions extracted from the aqueous phase into 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide(C_2mimNTf2) with dicyclohexyl-18-crown-6(DCH18C6) was stripped effectively by supercritical CO_2(sc-CO_2).Hexafluoroacetylacetone(HFAA)-acetonitrile was found to be an excellent modifier of sc-CO_2 to enhance the stripping efficiency.In the orthogonal array design(OAD),OA_(25)(5~5)matrix was employed to optimize the stripping of Sr(Ⅱ) from the DCH 18C6-C_2mimNTf_2 system.Effects of five experimental factors:temperature,pressure,concentration of HFAA,static and dynamic extraction times as well as each factor at five-levels on the stripping of Sr(Ⅱ) were optimized.The effects of these parameters were treated by the analysis of variance(ANOVA).The results showed that Sr(II) could be nearly 100%extracted from the IL phase at 308 K,30 MPa,40 min of dynamic extraction and 60 mmol·L^(-1) HFAA in acetonitrile,respectively.Finally,the stripping mechanism was studied by ESI-MS. | Tao Yang Jing Fu Qingde Chen Xinghai Shen | 2017 | Chinese Journal of Chemical Engineering2017，25，1： | 0 |
| 16 | Preparation and characterization of a novel single crystal ofTh(Ⅳ) with cucurbit[6]uril显示文摘One single crystal based on Th^(4+) and cucurbit[6]uril(CB6) in nitric acid aqueous solutions was synthesized by slow evaporation method. The single crystal was characterized by elemental analysis,single crystal X-ray diffraction, XRD, FT-IR and TGA. The complexed cation of Th^(4+) is a ten coordinated structure, in which the central thorium ion is coordinated by six monodentate water molecules and two bidentate nitrates. While CB6, as a second-sphere ligand, coordinates with the water molecules of [Th(NO_3)_2(H_2 O)_6]^(2+) through the formation of hydrogen bonding. Two other nitrate ions act as the counter anions. Besides, there are two free water molecules in the crystal system. The formation of the Th^(4+)-CB6 complex can contribute to the study of the coordination of CB6 and the extraction of Th^(4+) in HNO_3 | Dan Meng Hele Liang Qingde Chen Xinghai Shen | 2018 | Chinese Chemical Letters2018，29，3： | 0 |
| 17 | Effect of defatted flaxseed gum powder addition on the quality of sesame paste显示文摘The study explored the influence of defatted flaxseed gum powder(DFGP)on the stability and quality of sesame paste by measuring and analyzing its composition,color,texture,particle size,centrifugal oil separation rate,rheological properties,and microstructure.The results showed that the moisture and polysaccharide content of sesame paste was increased as the DFGP increased.Additionally,the hardness,gumminess,and chewiness of the sesame paste was improved,while the presence of particles with small particle size(1-100μm)was decreased.The rate of oil precipitation was reduced by 28.99%when the amount of DFGP was 6%.The sesame paste samples exhibited pseudoplastic behavior,demonstrating shear thinning.As the shear rate increased,the apparent viscosity of sesame paste gradually decreased.Both the storage modulus(G0)and the loss modulus(G00)increased as the shear frequency increased.The microstructure observation revealed that protein and oil were evenly distributed in the sesame paste system,and the addition of DFGP enhanced the bonding between oil and protein.This study can provide valuable references for high-quality sesame paste products in the food industry. | Haichao He Mingkai Sun Jiahui Wang Yan Tang Yashu Chen Qianchun Deng Qingde Huang Hu Tang | 2024 | Oil Crop Science2024，9，1： | 0 |
| 18 | Targeted microbiome metabolomics reveals flaxseed oil supplementation regulated the gut microbiota and farnesoid X receptor pathway in high-fat diet mice显示文摘Flaxseed oil(FSO)rich in n-3 polyunsaturated fatty acids(PUFAs)can protect against obesity and insulin resistance,but the underlying mechanism is unknown.An integrative multiomics of the microbiome and targeted metab olomics approach was performed to investigate the possible pathway for flaxseed oil supplementation on reducing serum total cholesterol,triglyceride and epididymal adipose in high-fat diet mice.FSO ameliorated the gut microbial dysbiosis by increasing the community diversity and the abundance of Clostridiales and Ruminococcaceae.These effects were associated with the regulation of bile acid(BAs)in the feces.FSO reduced the concentrations of conjugated BAs,such as cholic acid,tauro-α-murocholic acid,and tauro-ursodesoxycholic acid in feces,which in turn inhibit the intestinal farnesoid X receptor(FXR)-fibroblast growth factor(FGF)15 signaling pathway.Further analysis revealed that FSO activated FXR in the liver and regulated downstream gene expression(SHP,SREBP-1c,and CPT-1a),which promoted lipolysis and inhibited lipogenesis.The results of this study suggest that FSO modulates serum lipid concentrations by regulating the gut microbiota,FXR-FGF15 signaling and BA metabolism. | Chen Yang Zhenxia Xu Qingde Huang Xu Wang Fenghong Huang Qianchun Deng | 2023 | Food Science and Human Wellness2023，12，6： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员