Extraction, characterization, and catalytic potential of amorphous silica from corn cobs by sol-gel method

Palanivel Velmurugan; Jaehong Shim; Kui Jae Lee; Min Cho; Sung Sik Lim; Sang Ki Seo; Kwang Min Cho; Keuk Soo Bang; Byung Taek Oh

doi:10.1016/j.jiec.2015.04.009

Extraction, characterization, and catalytic potential of amorphous silica from corn cobs by sol-gel method

Palanivel Velmurugan
, Jaehong Shim
, Kui Jae Lee
, Min Cho
, Sung Sik Lim
, Sang Ki Seo
, Kwang Min Cho
, Keuk Soo Bang^*
, Byung Taek Oh

^*Corresponding author for this work

Environmental Biotechnology

Jeonbuk National University
University of Nebraska-Lincoln
Korea Rural Community Corp.
United States Food and Drug Administration

Research output: Contribution to journal › Journal article › peer-review

115 Scopus citations

Abstract

A simple method based on alkaline extraction followed by acid precipitation can be used to form silica aquagel from corn cob ash (CCA). SEM-EDS analysis confirmed the high silicon and oxygen content of the extracted silica. XRD diffraction indicated that the obtained product was amorphous silica, while FTIR data demonstrated the presence of siloxane and silanol groups. TEM images revealed the silica to be amorphous, and have an agglomeration form with an average diameter of ~50nm. CCA-extracted silica (0.1g/20ml) was observed to have good catalytic potential with 100% removal of 12×10^-4M methylene blue.

Original language	English
Pages (from-to)	298-303
Number of pages	6
Journal	Journal of Industrial and Engineering Chemistry
Volume	29
DOIs	https://doi.org/10.1016/j.jiec.2015.04.009
State	Published - 2015.09.25

Keywords

Agricultural waste
Catalytic activity
Characterization
Corn cob
Silica

Quacquarelli Symonds(QS) Subject Topics

Engineering - Chemical

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10.1016/j.jiec.2015.04.009

Cite this

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title = "Extraction, characterization, and catalytic potential of amorphous silica from corn cobs by sol-gel method",

abstract = "A simple method based on alkaline extraction followed by acid precipitation can be used to form silica aquagel from corn cob ash (CCA). SEM-EDS analysis confirmed the high silicon and oxygen content of the extracted silica. XRD diffraction indicated that the obtained product was amorphous silica, while FTIR data demonstrated the presence of siloxane and silanol groups. TEM images revealed the silica to be amorphous, and have an agglomeration form with an average diameter of \textasciitilde{}50nm. CCA-extracted silica (0.1g/20ml) was observed to have good catalytic potential with 100\% removal of 12×10-4M methylene blue.",

keywords = "Agricultural waste, Catalytic activity, Characterization, Corn cob, Silica",

author = "Palanivel Velmurugan and Jaehong Shim and Lee, \{Kui Jae\} and Min Cho and Lim, \{Sung Sik\} and Seo, \{Sang Ki\} and Cho, \{Kwang Min\} and Bang, \{Keuk Soo\} and Oh, \{Byung Taek\}",

note = "Publisher Copyright: {\textcopyright} 2015 The Korean Society of Industrial and Engineering Chemistry.",

year = "2015",

month = sep,

day = "25",

doi = "10.1016/j.jiec.2015.04.009",

language = "English",

volume = "29",

pages = "298--303",

journal = "Journal of Industrial and Engineering Chemistry",

issn = "1226-086X",

}

TY - JOUR

T1 - Extraction, characterization, and catalytic potential of amorphous silica from corn cobs by sol-gel method

AU - Velmurugan, Palanivel

AU - Shim, Jaehong

AU - Lee, Kui Jae

AU - Cho, Min

AU - Lim, Sung Sik

AU - Seo, Sang Ki

AU - Cho, Kwang Min

AU - Bang, Keuk Soo

AU - Oh, Byung Taek

PY - 2015/9/25

Y1 - 2015/9/25

N2 - A simple method based on alkaline extraction followed by acid precipitation can be used to form silica aquagel from corn cob ash (CCA). SEM-EDS analysis confirmed the high silicon and oxygen content of the extracted silica. XRD diffraction indicated that the obtained product was amorphous silica, while FTIR data demonstrated the presence of siloxane and silanol groups. TEM images revealed the silica to be amorphous, and have an agglomeration form with an average diameter of ~50nm. CCA-extracted silica (0.1g/20ml) was observed to have good catalytic potential with 100% removal of 12×10-4M methylene blue.

AB - A simple method based on alkaline extraction followed by acid precipitation can be used to form silica aquagel from corn cob ash (CCA). SEM-EDS analysis confirmed the high silicon and oxygen content of the extracted silica. XRD diffraction indicated that the obtained product was amorphous silica, while FTIR data demonstrated the presence of siloxane and silanol groups. TEM images revealed the silica to be amorphous, and have an agglomeration form with an average diameter of ~50nm. CCA-extracted silica (0.1g/20ml) was observed to have good catalytic potential with 100% removal of 12×10-4M methylene blue.

KW - Agricultural waste

KW - Catalytic activity

KW - Characterization

KW - Corn cob

KW - Silica

UR - https://www.scopus.com/pages/publications/84938742346

U2 - 10.1016/j.jiec.2015.04.009

DO - 10.1016/j.jiec.2015.04.009

M3 - Journal article

AN - SCOPUS:84938742346

SN - 1226-086X

VL - 29

SP - 298

EP - 303

JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

ER -

Extraction, characterization, and catalytic potential of amorphous silica from corn cobs by sol-gel method

Abstract

Keywords

Quacquarelli Symonds(QS) Subject Topics

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