TY - JOUR
T1 - Green synthesis of nano-muscovite and niter from feldspar through accelerated geomimicking process
AU - Yuan, Jiangyan
AU - Yang, Jing
AU - Ma, Hongwen
AU - Su, Shuangqing
AU - Chang, Qianqian
AU - Komarneni, Sridhar
N1 - Funding Information:
The present work was supported by the Fundamental Research Funds for the Central Universities ( 2952016058 , 2952016059 ). The first author also thanks the China Scholarship Council (CSC) for financial support ( 201706400023 ).
Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/12/1
Y1 - 2018/12/1
N2 - Synthesis of nano-muscovite has significant implications for applications such as electrical insulation, composite materials and paper-making. In this study, an energy-saving, efficient and sustainable route to synthesize muscovite from K-feldspar was developed by mimicking natural chemical weathering process of feldspar. Here, well-crystallized nano-muscovite of uniform flaky morphology with a thickness of 20–40 nm was obtained at 250 °C in just 18 h after treatment of K-feldspar under hydrothermal conditions. Moreover, additional potassium generated by the dissolution of K-feldspar into solution was collected as KNO3. This is truly a green chemical process for the synthesis of muscovite and niter in a closed system as it not only conserved all the starting chemicals for reuse but also generated two useful by-products, niter and CaSiO3.
AB - Synthesis of nano-muscovite has significant implications for applications such as electrical insulation, composite materials and paper-making. In this study, an energy-saving, efficient and sustainable route to synthesize muscovite from K-feldspar was developed by mimicking natural chemical weathering process of feldspar. Here, well-crystallized nano-muscovite of uniform flaky morphology with a thickness of 20–40 nm was obtained at 250 °C in just 18 h after treatment of K-feldspar under hydrothermal conditions. Moreover, additional potassium generated by the dissolution of K-feldspar into solution was collected as KNO3. This is truly a green chemical process for the synthesis of muscovite and niter in a closed system as it not only conserved all the starting chemicals for reuse but also generated two useful by-products, niter and CaSiO3.
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U2 - 10.1016/j.clay.2018.08.007
DO - 10.1016/j.clay.2018.08.007
M3 - Article
AN - SCOPUS:85051409771
SN - 0169-1317
VL - 165
SP - 71
EP - 76
JO - Applied Clay Science
JF - Applied Clay Science
ER -