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A comparative study of synthetic tubular kaolinite nanoscrolls and natural halloysite nanotubes
Li, Xiaoguang1,3,4; Wang, Ding2; Liu, Qinfu2; Komarneni, Sridhar3,4
2019-02-01
发表期刊APPLIED CLAY SCIENCE
ISSN0169-1317
卷号168页码:421-427
摘要Kaolinite (Kaol) nanoscrolls with a diameter of similar to 20 to 100 nm and length of similar to 0.25 to 2 mu m were prepared from the exfoliation of Kaol precursor. New interlayer space and lumens could be obtained by delamination and exfoliation of platy Kaol while forming nanoscrolls. The morphological and structural differences between synthetic Kaol nanoscrolls and natural halloysite (Hal) nanotubes were invesigated using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermogravimetry-differential scanning calorimetry (TG-DSC), nitrogen adsorption-desorption techniques. TEM showed that Kaol nanoscrolls are thinner and longer than Hal nanotubes. Kaol nanoscrolls exhibited nitrogen adsorption-desorption isotherms and pore size distribution curves similar to those of Hal but the specific surface area and pore volume of the Kaol nanoscrolls were found to be 2 times higher than those of natural tubular Hal. Both the TG and DTA curves of Kaol nanoscrolls and Hal nanotubes indicated that small amount of adsorbed water was lost below 140 degrees C. The dehydroxylation of Kaol nanoscrolls occurred at 463 degrees C, which is between the dehydroxylation temperature of Kaol and that of Hal. The current comparative study of Kaol nanoscrolls and Hal nanotubes suggests that the former could possibly be substituted for the latter for improving some applications because of the higher surface area and different types of pore space of the Kaol nanoscrolls.
关键词Halloysite nanotubes Kaolinite nanoscrolls Morphology Aspect ratio Lumen structure
DOI10.1016/j.clay.2018.12.014
资助者National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese State Key Research and Development Program ; Chinese State Key Research and Development Program ; Science and Technology Major Projects of Shanxi Province of China ; Science and Technology Major Projects of Shanxi Province of China ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese State Key Research and Development Program ; Chinese State Key Research and Development Program ; Science and Technology Major Projects of Shanxi Province of China ; Science and Technology Major Projects of Shanxi Province of China ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese State Key Research and Development Program ; Chinese State Key Research and Development Program ; Science and Technology Major Projects of Shanxi Province of China ; Science and Technology Major Projects of Shanxi Province of China ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese State Key Research and Development Program ; Chinese State Key Research and Development Program ; Science and Technology Major Projects of Shanxi Province of China ; Science and Technology Major Projects of Shanxi Province of China ; China Scholarship Council (CSC) ; China Scholarship Council (CSC)
关键词[WOS]PLATY KAOLINITE ; CONTROLLED-RELEASE ; CLAY NANOTUBES ; INTERCALATION ; DELAMINATION ; MECHANISM
语种英语
资助项目National Natural Science Foundation of China[51034006] ; National Natural Science Foundation of China[41602171] ; Chinese State Key Research and Development Program[2016YFE0203000] ; Science and Technology Major Projects of Shanxi Province of China[20181101003] ; China Scholarship Council (CSC)
资助者National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese State Key Research and Development Program ; Chinese State Key Research and Development Program ; Science and Technology Major Projects of Shanxi Province of China ; Science and Technology Major Projects of Shanxi Province of China ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese State Key Research and Development Program ; Chinese State Key Research and Development Program ; Science and Technology Major Projects of Shanxi Province of China ; Science and Technology Major Projects of Shanxi Province of China ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese State Key Research and Development Program ; Chinese State Key Research and Development Program ; Science and Technology Major Projects of Shanxi Province of China ; Science and Technology Major Projects of Shanxi Province of China ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese State Key Research and Development Program ; Chinese State Key Research and Development Program ; Science and Technology Major Projects of Shanxi Province of China ; Science and Technology Major Projects of Shanxi Province of China ; China Scholarship Council (CSC) ; China Scholarship Council (CSC)
WOS研究方向Chemistry ; Materials Science ; Mineralogy
WOS类目Chemistry, Physical ; Materials Science, Multidisciplinary ; Mineralogy
WOS记录号WOS:000455692700045
出版者ELSEVIER SCIENCE BV
引用统计
文献类型期刊论文
条目标识符http://ir.iggcas.ac.cn/handle/132A11/90186
专题岩石圈演化国家重点实验室
通讯作者Liu, Qinfu; Komarneni, Sridhar
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.China Univ Min & Technol, Sch Geosci & Surveying Engn, Beijing 100083, Peoples R China
3.Penn State Univ, Dept Ecosyst Sci & Management, University Pk, PA 16802 USA
4.Penn State Univ, Mat Res Lab, Mat Res Inst, University Pk, PA 16802 USA
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Li, Xiaoguang,Wang, Ding,Liu, Qinfu,et al. A comparative study of synthetic tubular kaolinite nanoscrolls and natural halloysite nanotubes[J]. APPLIED CLAY SCIENCE,2019,168:421-427.
APA Li, Xiaoguang,Wang, Ding,Liu, Qinfu,&Komarneni, Sridhar.(2019).A comparative study of synthetic tubular kaolinite nanoscrolls and natural halloysite nanotubes.APPLIED CLAY SCIENCE,168,421-427.
MLA Li, Xiaoguang,et al."A comparative study of synthetic tubular kaolinite nanoscrolls and natural halloysite nanotubes".APPLIED CLAY SCIENCE 168(2019):421-427.
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