The non-micellar template model for porous clay heterostructures: A perspective from the layer charge of base clay
The non-micellar template model for porous clay heterostructures: A perspective from the layer charge of base clay
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多孔粘土异质结构的非胶束模板模型：从基础粘土层电荷的角度来看
DOI：
10.1016/j.clay.2015.08.019
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发表时间：
2015-11
影响因子：
5.6
通讯作者：
Hongping He
中科院分区：
文献类型：
--
作者：
Yuebo Wang;Xiaoli Su;Xiaoqin Lin;Ping Zhang;Ke Wen;Jianxi Zhu;Hongping He
In this paper, the effect of layer charge (LC) of base clay on the structural properties of porous clay heterostructures (PCHs) was studied. Three natural montmorillonites (Mt) with different LC and a series of reduced-charge Mt were used in the synthesis of PCH to discuss the non-micellar template model for PCH from the perspective of base clay. The PCH samples are the intergrowth of a porous silica-intercalated clay and an amorphous silica component. The XRD and TEM studies revealed that the d001-values of PCH samples prepared from natural Mt (simply as “natural PCH” for short) were larger than 3 nm. The interstratified structures in PCH samples from reduced-charge Mt (simply as “reduced-charge PCH” for short) were the result of the collapse of interlayer spaces caused by the inhomogeneous LC reduction. The organic carbon contents (fOC) of organo-montmorillonite (OMt) were negatively correlated with the bulk silica contents (fSiO2-b) of the corresponding PCH samples. For the natural PCH, the extra spaces from decreased surfactant within interlayer were occupied by amorphous silica in the pillaring reaction. The decreased specific surface area (SSA), porosity and the invariant dominant pore size (1.3–1.4 nm) of PCH suggested that blocking the pore channels in the interlayer spaces with increased silica was more pronounced than propping the layers permanently apart and building porous structures. Based on the effect of organic template and base clay on the structural properties in our previous and present work, Mt-based PCH probably is a type of porous materials with invariant pore size.
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影响因子：
5.6
作者：
He, Hongping;Ma, Yuehong;Qing, Yanhong
通讯作者：
Qing, Yanhong
影响因子：
5.2
作者：
M. Sychev;T. Shubina;M. Rozwadowski;Apb Sommen;D. Beer;V. Santen
通讯作者：
M. Sychev;T. Shubina;M. Rozwadowski;Apb Sommen;D. Beer;V. Santen
影响因子：
2.2
作者：
R. Calvet;R. Prost
通讯作者：
R. Calvet;R. Prost
影响因子：
2.6
作者：
N. Bunnak;S. Ummartyotin;P. Laoratanakul;A. Bhalla;H. Manuspiya
通讯作者：
N. Bunnak;S. Ummartyotin;P. Laoratanakul;A. Bhalla;H. Manuspiya
影响因子：
5.6
作者：
P. Slade;W. Gates
通讯作者：
P. Slade;W. Gates