Nanocellulose from rice husk following alkaline treatment to remove silica
نویسندگان
چکیده
منابع مشابه
Nanocellulose from Rice Husk following Alkaline Treatment to Remove Silica
The present work deals with the use of multiple-step procedures to obtain valuable sub-products, including nanocellulose, from rice husk. Each sub-product was characterized after every step by analyzing the chemical composition (mainly based on thermogravimetric analysis, Fourier transformed infrared spectra, and X-ray diffraction) and morphology (using visual observations and scanning electron...
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The aim of this study was to investigate the effectiveness of dried activated sludge (DAS) and mixed dried activated sludge with rice husk silica (DAS & RHS) for removal of hydrogen sulfide (H2S). Two laboratory-scale filter columns (packed one litter) were operated. Both systems were operated under different conditions of two parameters, namely different inlet gas concentrations and different ...
متن کاملSynthesis of Si/MgO/Mg2SiO4 Composite from Rice Husk-Originated Nano-Silica
Silica exists in Rice husk, an agriculture waste, as a naturally occurring phase. In first step, acidic pre-treatment and calcination of the rice husk were performed to obtain nano-silica, in which various sizes of the nano-silica, totally with sizes under 80 nm, were achieved. Second, to reduce nano-silica to elemental Si and subsequently formation of the composite, Mg used as the reducing age...
متن کاملProduction of Silica Nanoparticles from Rice Husk as Agricultural Waste by Environmental Friendly Technique
Extensive application of silica nanoparticles (SNPs) in various industrial products has led to the development of silica extraction methodologies out of various waste products. Rice husk is an agricultural waste with a high content of amorphous silica. However, the presence of metal ion impurities and unburned carbon in the rice husk content may present an adverse effect on product color and pu...
متن کاملThe Synthesis and Characterization of Cobalt-Rice Husk Silica Nanoparticles
Spherical and needle-like cobalt nanoparticles incorporated on rice husk silica was synthesized by a simple, rapid and eco-friendly sol-gel route at room temperature. This was achieved by direct mixing of 20 wt.% Co with sodium silicate from rice husk under ambient conditions to form RH-20Co. The cobalt was found to be isomorphously substituted in the silica matrix. A good dispersion of cobalt ...
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ژورنال
عنوان ژورنال: BioResources
سال: 2011
ISSN: 1930-2126,1930-2126
DOI: 10.15376/biores.6.2.1440-1453