4篇
您的检索式：作者名="Meng Qingpeng"
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| 1 | Zeolite A synthesized from alkaline assisted pre-activated halloysite for efficient heavy metal removal in polluted river water and industrial wastewater显示文摘High quality zeolite A was synthesized through a hydrothermal process using alkalineassisted pre-activated halloysite mineral as the alumina and silica source. The synthesis conditions employed in this study were finely tuned by varying the activating temperature,sodium hydroxide content, water content and Si/Al ratio. The obtained zeolite A showed excellent adsorption properties for both single metal cation solutions and mixed cation solutions when the concentrations of the mixed cations were comparable with those in polluted natural river water and industrial wastewater. High adsorptive capacities for Ag^+(123.05 mg/g) and Pb^(2+)(227.70 mg/g) were achieved using the synthesized zeolite A. This observation indicates that the zeolite A synthesized from alkaline-assisted pre-activated halloysite can be used as a low-cost and relatively effective adsorbent to purify heavy metal cation polluted natural river water and industrial wastewater. | Qingpeng Meng Hong Chen Junzhong Lin Zhang Lin Junliang Sun | 2017 | Journal of Environmental Sciences2017，29，6： | 3 |
| 2 | Characterization of Meloidogyne species from China using isozyme phenotypes and amplified mitochondrial DNA restriction fragment length polymerphism显示文摘 | Xu Jianhua Liu Peilei Meng Qingpeng | 2004 | European Journal of Plant Pathology2004，110，： | 1 |
| 3 | The effect of micro-structural uncertainties of recycled aggregate concrete on its global stochastic properties via finite pixel-element Monte Carlo simulation显示文摘In this paper,the effect of micro-structural uncertainties of recycled aggregate concrete (RAC)on its global stochastic elastic properties is investigated via finite pixel-element Monte Carlo simulation.Representative RAC models are randomly generated with various distribution of aggregates.Based on homogenization theory,effects of recycled aggregate replacement rate,aggregate volume fraction,the unevenness of old mortar,proportion of old mortar, aggregate size and elastic modulus of aggregates on overall variability of equivalent elastic properties are investigated. Results are in a good agreement with experimental data in literature and finite pixel-element method saves the computation cost.It is indicated that the effect of mesoscopic randomness on global variability of elastic properties is considerable. | Qingpeng MENG Yuching WU Jianzhuang XIAO | 2018 | Frontiers of Structural and Civil Engineering2018，12，4： | 0 |
| 4 | Stereoselective synthesis of the 3,6-branched Fuziα-glucans up to 15-mer via a one-pot and convergent glycosylation strategy显示文摘A family of the 3,6-branched Fuziα-glucans including the pentasaccharide repeating unit as well as its di-and trimers were efficiently achieved via a one-pot and convergent glycosylation strategy.All the protectedα-glucans up to 15-mer were assembled with high yields and excellentα-stereoselectivity,which was secured by the synergisticα-directing effects of the Tol SCl/Ag OTf promotion system and the stericβ-facial shielding of bulky saccharide residues linked at the 6-O-position of glucosyl donors.Moreover,the 3,6-branched architecture of glycosyl donor was revealed to be more favorable for theα-selective glucosidation of primary hydroxyl group,especially in the case of large oligosaccharide acceptor.The structurally well-defined syntheticα-glucans would be useful for various biological studies. | Qingpeng Zhao Shihao Zhou Yue Wang Xiaoyu Yang Youhui Meng Yanxin Zhang Jian Gao | 2023 | Chinese Chemical Letters2023，34，6： | 0 |
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