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| 1 | Synthesis, crystal structure and photocatalytic performance of polyoxometalate K_(13)[Gd(GeW_(11)O_(39))_2]·34H_2O显示文摘A polyoxometalate K_(13)[Gd(GeW_(11)O_(39))_2]·34 H_2 O was synthesized and characterized by elemental analysis,IR spectroscopy, UV spectra, XRD and thermal gravimetric analysis. X-ray single-crystal structural analysis indicates that the title compound crystallizes in the triclinic crystal system. The heteropolyanion of [Gd(GeW_(11)O_(39))_2]^(13) consists of two [GeW_(11)O_(39)]^(8-) vacant Keggin moieties linked via Gd^(3+). Photocatalytic performance of K_(13)[Gd(GeW_(11)O_(39))_2]·34 H_2 O in photodegradation of X-3 B was also studied.When the reaction time is 180 min, the decoloring rate reaches 71.19%. With the decrease of pH, the decolorization rate increases gradually. | Haibin Liu Lin Bai Limei Ai Wenshuang Dai Danfeng Zhang Qingyin Wu Renchun Zhang | 2019 | Journal of Rare Earths2019，37，6： | 1 |
| 2 | Hydrothermal synthesis and crystal structure of two new α-Keggin decorated by transition metal complexes显示文摘 | DAI LIMEI MA YING WANG ENBO | 2006 | Journal of Transition Metal Chemistry2006，31，： | 1 |
| 3 | Joint effects of chromium and phenol on marine prawns ( Penaeus japonicus )显示文摘 | Zhou Qixing Dai Limei | 1995 | Marine Pollution Bulletin1995，，4： | 1 |
| 4 | Composition Analysis of Grape Wine from Different Brewing Technology and Its Nutrition Constituent显示文摘[Objective] The aim was to to enhance the technology to brew better the traditional grape wine, which provided theoretical basis for the development of Wuling Mountain grape wine. [Method] Taking grapes in Wuling Mountain as the row materials, Saccharomyces cerevisiae of different wines was chosen and brewed. The quality of grape wine was studied and the sensory evaluation was analyzed by dint of GC-MS. [Result] Result illustrated that the ethanol concentration of the wine brewed by exploration craft A was 68.5 g/L and that brewed by exploration craft B was 59.5 g/L; the higher alcohol content of craft A was 37.86% while that of craft B is 35.99%; craft A's percentage content of esters was 28.82% while that of B was 27.10%; craft A's percentage content of acids was 2.20% while that of B was 1.24%; the gamma-aminobutyric acid content of craft A was 33.2 g/100 ml while that of craft B was 35.4 g/100 ml. the essential amino-acid content of craft A was 11.8 g/100 ml while that of craft B was 13.9 g/100 ml .The result indicates that the wine brewed by craft A was aromatic and had special flavor. [Conclusion] In this case, the grape wine has particular flavor and has good property, which can be exploited. | DAI Xuan PAN Limei LI Jingbo | 2012 | Chinese Food Science2012，1，4： | 0 |
| 5 | Environmental,economic and exergy analysis of separation of ternary azeotrope by variable pressure extractive distillation based on multi-objective optimization显示文摘In this work,the ternary azeotrope of tert-butyl alcohol/ethyl acetate/water is separated by extractive distillation(ED)to recover the available constituents and protect the environment.Based on the conductor like shielding model and relative volatility method,ethylene glycol was selected as the extractant in the separation process.In addition,in view of the characteristic that the relative volatility between components changes with pressure,the multi-objective optimization method based on nondominated sorting genetic algorithm II optimizes the pressure and the amount of solvent cooperatively to avoid falling into the optimal local solution.Based on the optimal process parameters,the proposed heat-integrated process can reduce the gas emissions by 29.30%.The heat-integrated ED,further coupled with the pervaporation process,can reduce gas emission by 42.36%and has the highest exergy efficiency of 47.56%.In addition,based on the heat-integrated process,the proposed two heat pump assisted heat-integrated ED processes show good economic and environmental performance.The double heat pump assisted heat-integrated ED can reduce the total annual cost by 28.78%and the gas emissions by 55.83%compared with the basis process,which has a good application prospect.This work provides a feasible approach for the separation of ternary azeotropes. | Peizhe Cui Jiafu Xing Chen Li Mengjin Zhou Jifu Zhang Yasen Dai Limei Zhong Yinglong Wang | 2024 | Chinese Journal of Chemical Engineering2024，65，1： | 0 |
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