Synthesis of SiO2 nanoparticle from bamboo leaf and its incorporation in PDMS membrane to enhance its separation properties
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Naresh K. Sethy
,
Zeenat Arif
Abstract
A low-cost indigenous silica powder at nano-scale was synthesized by thermal combustion and alkaline extraction technique from bamboo leaf ash. The bamboo leaf ash was prepared by heating the bamboo leaf at 750°C for 5 h. The amorphous SiO2 nanoparticle with an average particle size of 20 nm was used for the industrial application. The synthesized nanoparticle as a filler was mixed with polydimethylsiloxane (PDMS) polymer solution to synthesize a nanocomposite membrane by a solution casting method. The morphological study was done using high-resolution scanning electron microscopy (HRSEM) with an energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and the chemical structure was studied using Fourier-transform infrared spectrometry (FTIR). Thermogravimetric analysis (TGA) analyzed the thermal stability of the membranes, and the hydrophobicity was measured using contact angle analyzer. Separation of the acetic-water mixture was carried out by nano-composite PDMS membrane to study the effect of silica loading on the PDMS membrane. It was observed that the presence of SiO2 nanoparticles significantly improves the pervaporation flux as well as the thermal stability.
Acknowledgments
Naresh Kumar Sethy would like to thank the Ministry of Human Resource Development, and the Department of Chemical Engineering & Technology, IIT (BHU) Varanasi for financial support as SRF. The authors also would like to thank the Sophisticated Laboratory of Department of Chemical Engineering and Technology and Central Instrument Facility Center (CIFC), Indian Institute of Technology (BHU), Varanasi, for providing the instrumental facility, respectively.
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© 2019 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Material properties
- Banana and plantain fiber-reinforced polymer composites
- Characterizations of PMMA-based polymer electrolyte membranes with Al2O3
- Effects of grafting parameters on the properties of proton exchange membranes based on sulfo-functionalized porous silicon for micro direct methanol fuel cells
- The effect of surface modification of PMMA/chitosan composites on improving adsorption properties for chelating Pb2+
- Characterization of organic solar cells using semiconducting polymers with different bandgaps
- Hindered phenol-mediated damping of polyacrylate rubber: effect of hydrogen bonding strength on the damping properties
- Correlation between fiber orientation distribution and mechanical anisotropy in glass-fiber-reinforced composite materials
- Preparation and assembly
- Replacement of sodium alginate polymer, urea and sodium bicarbonate in the conventional reactive printing of cellulosic cotton
- Carboxylic acid modified pH-responsive composite polymer particles
- Synthesis of SiO2 nanoparticle from bamboo leaf and its incorporation in PDMS membrane to enhance its separation properties
Artikel in diesem Heft
- Frontmatter
- Material properties
- Banana and plantain fiber-reinforced polymer composites
- Characterizations of PMMA-based polymer electrolyte membranes with Al2O3
- Effects of grafting parameters on the properties of proton exchange membranes based on sulfo-functionalized porous silicon for micro direct methanol fuel cells
- The effect of surface modification of PMMA/chitosan composites on improving adsorption properties for chelating Pb2+
- Characterization of organic solar cells using semiconducting polymers with different bandgaps
- Hindered phenol-mediated damping of polyacrylate rubber: effect of hydrogen bonding strength on the damping properties
- Correlation between fiber orientation distribution and mechanical anisotropy in glass-fiber-reinforced composite materials
- Preparation and assembly
- Replacement of sodium alginate polymer, urea and sodium bicarbonate in the conventional reactive printing of cellulosic cotton
- Carboxylic acid modified pH-responsive composite polymer particles
- Synthesis of SiO2 nanoparticle from bamboo leaf and its incorporation in PDMS membrane to enhance its separation properties
