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Sustainable Materials by Mimicking Natural Weathering

文献类型：期刊论文

作者Yuan, Jiangyan1,5; Ma, Hongwen1; Guo, Ruoyu1; Ma, Xi4; Komarneni, Sridhar2,3
刊名ACS SUSTAINABLE CHEMISTRY & ENGINEERING
出版日期2020-07-27
卷号8期号:29页码:10920-10927
ISSN号2168-0485
关键词Muscovite Kaolinite Hydrothermal transformation Weathering Sustainable
DOI10.1021/acssuschemeng.0c03300
英文摘要The chemical weathering of silicate rocks is of significance to decipher the interaction between minerals and fluids in lithospheric evolution, and a sufficient utilization of this knowledge is helpful to comprehensively understand the value of mineral weathering in materials synthesis and element cycling. In this study, hydrothermal experiments were carried out to investigate the accelerated transformation between muscovite and kaolinite, two phyllosilicates. Nanokaolinite with a diameter of about 400-500 nm and thickness of about 20-50 nm was synthesized from muscovite under hydrothermal conditions. The XRD result of the starting muscovite precursor showed a (001) d-spacing of 10.13 angstrom consistent with its 2:1 structure of tetrahedral-octahedral-tetrahedral (TOT) sheets along with the existence of interlayer K+ ions. After muscovite transformation to kaolinite, the characteristic reflection (001) of as-synthesized kaolinite phase was determined to be 7.17 angstrom. The transformation of muscovite to kaolinite was characterized by several techniques such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), high-resolution transmission electron microscopy (HRTEM), and magic-angle-spinning nuclear magnetic resonance spectroscopy (MAS NMR). The transformation mechanism of muscovite to kaolinite is hypothesized as a partial dissolution and localized rearrangement followed by recrystallization. Here, nanokaolinite was prepared rapidly by hydrothermal conversion of muscovite, which served as a precursor. The synthetic nanokaolinite has many potential applications in paper and other coatings because of its ideal size, purity, and morphology, and the released K as niter, KNO3 during the kaolinite synthesis can serve as a K-fertilizer.
WOS关键词SECONDARY MINERAL PRECIPITATION ; ALKALI-FELDSPAR DISSOLUTION ; HYDROTHERMAL SYNTHESIS ; NMR-SPECTROSCOPY ; FREE-ENERGY ; KAOLINITE ; AL-27 ; SI-29 ; MECHANISM ; KINETICS
资助项目Fundamental Research Funds for the China Central Universities[2952016058] ; Fundamental Research Funds for the China Central Universities[2952016059]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Engineering
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000557382400034
资助机构Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities ; Fundamental Research Funds for the China Central Universities
源URL[http://ir.iggcas.ac.cn/handle/132A11/97595]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Ma, Hongwen; Komarneni, Sridhar
作者单位1.China Univ Geosci, Beijing Key Lab Mat Utilizat Nonmetall Minerals, Sch Mat Sci & Technol, Beijing 100083, Peoples R China
2.Penn State Univ, Mat Res Inst, Energy & Environm Lab 204, University Pk, PA 16802 USA
3.Penn State Univ, Dept Ecosyst Sci & Management, Energy & Environm Lab 204, University Pk, PA 16802 USA
4.China Earthquake Adm, Inst Geol, State Key Lab Earthquake Dynam, Beijing 100029, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Yuan, Jiangyan,Ma, Hongwen,Guo, Ruoyu,et al. Sustainable Materials by Mimicking Natural Weathering[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2020,8(29):10920-10927.
APA Yuan, Jiangyan,Ma, Hongwen,Guo, Ruoyu,Ma, Xi,&Komarneni, Sridhar.(2020).Sustainable Materials by Mimicking Natural Weathering.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,8(29),10920-10927.
MLA Yuan, Jiangyan,et al."Sustainable Materials by Mimicking Natural Weathering".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 8.29(2020):10920-10927.

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来源：地质与地球物理研究所

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