A simple method for production of pure silica from rice hull ash

By U. Kalapathy, A. Proctor, J. Shultz. 2000

672 citations recorded by the source corpus.

Subfields: Biomaterials, Ceramics and Composites, Plant Science

View Paper: https://www.semanticscholar.org/paper/0c7d0be9bae86ede33788a4878ac9b5be868ed24

How researchers see this paper

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In Biomaterials

1. Iyenagbe Ugheoke
2. Vassilis J. Inglezakis
3. Konstantinos Moustakas
4. Alina V. Korobeinyk
5. S. Azat

In Ceramics and Composites

1. K. Kondoh
2. J. Umeda
3. Iyenagbe Ugheoke

In Plant Science

1. Steven C. Ricke
2. Iyenagbe Ugheoke

Citations in the corpus

• Review of fly ash inertisation treatments and recycling (2014, background): “In addition, nearly pure amorphous silica can be obtained from RHA (Kalapathy et al. 2000).”
• High-purification of amorphous silica originated from rice husks by combination of polysaccharide hydrolysis and metallic impurities removal. (2010, background): “All rights reserved. processes to produce silica materials by combusting rice husks (Chakraverti et al., 1988; Kalapathy et al., 2000; Patel et al., 1987; Rozainee et al., 2008).”
• The Synthesis and Characterization of Low-Cost Mesoporous Silica SiO2 from Local Pumice Rock (2015, background): “Both materials have many potential applications, such as catalyst supports [11, 12], in pharma‐ ceuticals [13], in vegetable-oil refining [14] and in thin films or coatings for electronic and optical materials [15, 16].”
• A facile method for production of high-purity silica xerogels from bagasse ash (2009, methodology): “An alkali extraction method reportedly can be used to recover silica from rice hull ash using a low-temperature reaction [10,11].”
• Preparation of nanosilica powder from rice husk ash by precipitation method (2008, background): “The amorphous nature of RHA silica makes it extractable at lower temperature, and hence provides a low energy method[1,2].”
• Characterization of anatomical features and silica distribution in rice husk using microscopic and micro-analytical techniques (2003, methodology): “Several techniques have been used to obtain silica from rice husks, and processes have been re7ned for optimizing the recovery of pure silica [11,12].”
• Sustainable production of pure silica from rice husk waste in Kazakhstan (2019, background): “The observed broad halo (SiO2_T2) with maximum intensity at 2θ=22° confirms the amorphous structure of obtained silica (Kalapathy et al., 2001) and corresponds to the d-spacing value of 0.”
• The effect of pyrolysis conditions on biochar stability as determined by three methods (2013, background): “Rice husk samples yielded the largest mass of char, but conserved mass included high concentrations of inorganics present in the feedstock known from literature to be high in silica (Kalapathy et al., 2000).”
• Growth and physiological responses of maize (Zea mays L.) to porous silica nanoparticles in soil (2012, methodology): “Synthesis and characterization of nanosilica Nanosilica was extracted from natural source using rice husk ash by acid precipitation followed by alkali extraction method (Kalapathy et al. 2000).”
• A critical assessment and new research directions of rice husk silica processing methods and properties (2012, background): “Some researchers [42, 44] also attempted chemical post-treatment of incinerated rice husk using HCl but the results were inferior to those of the pre-treatment.”
• Current Trends of Rice Milling Byproducts for Agricultural Applications and Alternative Food Production Systems (2019, background): “Rice husk ash (RHA) has potential application within purification processes as it is primarily silica which proteins can bind to (Kalapathy et al., 2000).”