nAl~(3+)/(nAl~(3+)+nMg~(2+))对MgAl-NO_3~--LDHs层间域环境影响及控制
Influence of nAl~(3+)/(nAl~(3+)+nMg~(2+)) on the Interlayer Environment of MgAl-NO_3~--LDHs
查看参考文献20篇
|
文摘
|
采用共沉淀法制备了不同层板中Al~(3+)摩尔分数x值(x=nAl~(3+)/(nAl~(3+)+nMg~(2+)),其中x值为0.29~0.6)的MgAl-NO_3~--LDHs化合物,研究了Al~(3+)摩尔分数对MgAl-NO_3~--LDHs层间域环境的影响。XRD分析表明,当x从0.6降至0.29时,MgAl-NO_3~--LDHs的结晶度逐渐提高。LDHs的层间距随x值减小而增大,NO_3~-由x为0.6时的与层板平行排布,变为x为0.29~0.5时的与层板呈倾斜排布。晶胞参数c随着x值的减小而增大,晶胞参数a、沿(003)晶面垂直方向上的晶粒尺寸D_(003)和沿(110)晶面垂直方向上的晶粒尺寸D_(110)受x值变化的影响较为复杂。FT-IR分析表明,在高x值(x为0.4~0.6)时MgAl-NO_3~--LDHs中NO_3~-基团的红外活性增强,而在低x值(x为0.29~0.33)时其红外活性减弱。 |
|
其他语种文摘
|
A series of MgAl-NO_3~--LDHs compounds with different x values(x = nAl~(3+)/(nAl~(3+)+nMg~(2+)) were synthesized by the coprecipitation method.The influence of the x values on interlayer environment of LDHs was studied.XRD patterns showed that the degree of crystallization increased when the x value decreased from 0.6 to 0.29.And the change of basal spacing of LDHs with x values suggested that the arrangement of NO_3~- between the layers was changing.For x=0.6,a "flat-lying" model that the anions were parallel with layer plates was proposed,to the contrast,a "tilt-lying" model was possibly existed for x=0.29~0.5.And lattice parameter c increased with the decrease of x values,however,lattice parameter a,the crystal size along the vertical direction of(003) crystal face(D_(003)) and the size along the vertical direction of(110) crystal face(D_(110)) were intricately influenced by x values.The FT-IR spectrum revealed that the infrared activity of NO_3~- was strengthened for the samples of x=0.4~0.6,but it was weakened for the samples of x=0.29~0.33. |
|
来源
|
非金属矿
,2012,35(2):39-42,45 【核心库】
|
|
关键词
|
层状双氢氧化物
;
nAl~(3+)/(nAl~(3+)+nMg~(2+))
;
层间域环境
|
|
地址
|
1.
桂林理工大学材料科学与工程学院, 中国科学院矿物学与成矿学重点实验室, 广西, 桂林, 541004
2.
桂林理工大学材料科学与工程学院, 广西, 桂林, 541004
3.
桂林理工大学化学与生物工程学院, 广西, 桂林, 541004
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1000-8098 |
|
学科
|
一般工业技术 |
|
基金
|
国家自然科学基金
;
广西自然科学基金
;
中国科学院矿物学与成矿学重点实验室合作研究基金
;
广西研究生教育创新计划项目
|
|
文献收藏号
|
CSCD:4493661
|
参考文献 共
20
共1页
|
|
1.
Canavi F. Hydrotalcitetype anionic clays: preparation, properties and applications.
Catalysis Today,1991,11:173-191
|
被引
455
次
|
|
|
|
|
2.
Allmann R. Neues Jahrbuch fuer mineralogie.
Monatshefte,1969,12:544-551
|
被引
1
次
|
|
|
|
|
3.
谢襄漓. 单十二烷基磷酸根离子柱撑MgAl水滑石的结构特征.
矿物岩石,2010,30(2):25-28
|
被引
3
次
|
|
|
|
|
4.
Forano C. Layered double hydroxides.
Handbook of clay science,2006:1021-1095
|
被引
3
次
|
|
|
|
|
5.
Wang L J. A comparison of the fire retardancy of poly (methyl methacrylate) using montmorillonite, layered double hydroxide and kaolinite.
Polymer Degradation and Stability,2010,95(4):572-578
|
被引
5
次
|
|
|
|
|
6.
Ren L. Immobilization of penicillin G acylase in layered double hydroxides pillared by glutamate ions.
Journal of Molecular Catalysis B: Enzymatic,2002,18:3-11
|
被引
7
次
|
|
|
|
|
7.
刘利. 水滑石在多相催化中应用的研究进展.
化工生产与技术,2010,17(1):43-45
|
被引
1
次
|
|
|
|
|
8.
周迎辉. 偶氮染料酸性橙在水滑石层间吸附作用的理论研究.
工业催化,2008,10(16):180-183
|
被引
1
次
|
|
|
|
|
9.
曹光群. 水滑石及其纳米插层材料的制备和应用.
日用化学工业,2008,38(1):55-58
|
被引
1
次
|
|
|
|
|
10.
Xu Z P. Abrupt structural transformation in hydrotalcitelike compounds Mg_(1-x)Al_x(OH)_2(NO_3)_x ·nH_2O as a continuous function of nitrate anions.
The Journal of Physical Chemistry B,2001,105:1743-1749
|
被引
20
次
|
|
|
|
|
11.
Auxilio A R. Adsorption of ink-jet inks and anionic dyes onto Mg-Al-NO3 layered double hydroxides of variable Mg: Al molar ratio.
Australian Journal of Chemistry,2010,63:83-91
|
被引
1
次
|
|
|
|
|
12.
Chao Y F. Preferential adsorption of 2, 4-dichlorophenoxyacetate from associated binary-solute aqueous systems by Mg/Al-NO3 layered double hydroxides with different nitrate orientations.
Journal of Hazardous Materials,2009,165:846-852
|
被引
3
次
|
|
|
|
|
13.
Wang S L. In situ XRD and ATR-FTIR study on the molecular orientation of interlayer nitrate in Mg/Al-layered double hydroxides in water.
Colloids and Surfaces A: Physicochemical and Engineering Aspects,2007,292:131-138
|
被引
4
次
|
|
|
|
|
14.
Tran P. Molecular dynamic simulations of interactions between LDH and NO3 - intercalates in aqueous solution.
Journal of Physics and Chemistry of Solids,2008,69:1044-1047
|
被引
1
次
|
|
|
|
|
15.
Sideris P J. Mg/Al ordering in layered double hydroxides revealed by multinuclear NMR spectroscopy.
Science,2008,321(5885):113-117
|
被引
43
次
|
|
|
|
|
16.
Kagunya W. Vibrational modes in layered double hydroxides and their calcined derivatives.
Chemical Physics,1998,236(1/3):225-134
|
被引
6
次
|
|
|
|
|
17.
Kloprogge J T. Infrared and Raman study of interlayer anions CO_3~(2-), NO_3~-, SO_4~(2-) and ClO_4~- in Mg/Al hydrotalcite.
American Mineralogist,2002,87(5/6):623-629
|
被引
20
次
|
|
|
|
|
18.
Ross S D.
Inorganic Infrared and Raman Spectra,1972:140
|
被引
5
次
|
|
|
|
|
19.
Kooli F. New Ni-Al-Cr and Ni-Al-Fe carbonate hydrotalcite-like compounds: synthesis and characterization.
Journal of Solid State Chemistry,1995,118(2):285-291
|
被引
1
次
|
|
|
|
|
20.
庞海霞. 荧光黄阴离子插层镁铝水滑石的合成、表征及光学性能研究.
非金属矿,2011,34(4):12-14
|
被引
1
次
|
|
|
|
|
了解气象卫星更多信息，请访问