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The inexpensive and green method of synthesis for self-assembled micro/nano structures is an important area of emerging research. Such structures can be chemically tuned with predesigned functional properties. Therefore, they hold very good promise for future applications, e.g., biomedicine, electronic device, solar energy, gas sensing. Here we report for the first time an inexpensive and green method for chemical deposition of magnesium hydroxide (Mg(OH)2) micro/nano flowers in thin films on commercial soda lime silica glass substrates at room temperature. Under identical conditions, chemically synthesized Mg(OH)2 powders are also prepared in absence of the soda lime silica glass substrates. The condition that favors the growth of micro/nano flowers in thin films is identified from X-ray diffraction (XRD), scanning electron microscopy (SEM), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), and energy dispersive X-ray spectroscopy (EDX) data. Finally, the possible growth mechanism of micro/nano flowers in thin films is discussed.


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Synthesis of Mg(OH)2 micro/nano flowers at room temperature

Show Author's information Pradip Sekhar DASaArjun DEYbAshok Kumar MANDALaNitai DEYaAnoop K. MUKHOPADHYAYa,*( )
CSIR-Central Glass and Ceramic Research Institute, Kolkata 700032, India
Thermal Systems Group, ISRO Satellite Centre, Vimanapura Post, Bangalore 560017, India

Abstract

The inexpensive and green method of synthesis for self-assembled micro/nano structures is an important area of emerging research. Such structures can be chemically tuned with predesigned functional properties. Therefore, they hold very good promise for future applications, e.g., biomedicine, electronic device, solar energy, gas sensing. Here we report for the first time an inexpensive and green method for chemical deposition of magnesium hydroxide (Mg(OH)2) micro/nano flowers in thin films on commercial soda lime silica glass substrates at room temperature. Under identical conditions, chemically synthesized Mg(OH)2 powders are also prepared in absence of the soda lime silica glass substrates. The condition that favors the growth of micro/nano flowers in thin films is identified from X-ray diffraction (XRD), scanning electron microscopy (SEM), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), and energy dispersive X-ray spectroscopy (EDX) data. Finally, the possible growth mechanism of micro/nano flowers in thin films is discussed.

Keywords:

Keywords: magnesium hydroxide (Mg(OH)2); flower-like microstructure; chemical deposition; film
Received: 08 January 2013 Revised: 22 March 2013 Accepted: 24 March 2013 Published: 04 June 2013 Issue date: June 2013
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Publication history

Received: 08 January 2013
Revised: 22 March 2013
Accepted: 24 March 2013
Published: 04 June 2013
Issue date: June 2013

Copyright

© The author(s) 2013

Acknowledgements

The authors acknowledge the kind permission of the director of CSIR-CGCRI to publish this paper. The infrastructural supports received from the XRD and electron microscopy sections of CSIR-CGCRI are highly appreciated. The authors are also thankful to CSIR (Project No. NWP 0027) for financial support.

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