Chemically Treated Rice Husk Blends as Green Desiccant Materials for Industrial Application

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3 Citations (Scopus)

Abstract

The use of rice husks (RHs), treated RHs, and blends thereof as desiccants was studied. Bare RHs, treated RHs, and blends were characterized, and their water absorbances compared. Acid-treated RHs showed better moisture absorbance than alkali-treated RHs and hence were used to prepare blends. Moisture absorption of RH materials and silica gel were compared. Blends with a higher content of acid-treated RHs showed higher water and moisture absorbency. The moisture absorbency of the blends was enhanced, and they exceeded the silica-gel limit at 48h of exposure time. The higher absorbency in blends with higher contents of acid-treated RHs is likely due to higher porosity and improved adhesion properties owing to surface OH groups. Moreover, RH blends require shorter regeneration times than silica gel.

Original languageEnglish
JournalChemical Engineering and Technology
DOIs
Publication statusAccepted/In press - 2017

Fingerprint

Hygroscopic Agents
Industrial applications
Silica Gel
Silica gel
Moisture
Acids
Water
Alkalies
Adhesion
Porosity

Keywords

  • Desiccants
  • Moisture absorption
  • Natural-fiber blends
  • Rice husks
  • Water absorption

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

Cite this

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title = "Chemically Treated Rice Husk Blends as Green Desiccant Materials for Industrial Application",
abstract = "The use of rice husks (RHs), treated RHs, and blends thereof as desiccants was studied. Bare RHs, treated RHs, and blends were characterized, and their water absorbances compared. Acid-treated RHs showed better moisture absorbance than alkali-treated RHs and hence were used to prepare blends. Moisture absorption of RH materials and silica gel were compared. Blends with a higher content of acid-treated RHs showed higher water and moisture absorbency. The moisture absorbency of the blends was enhanced, and they exceeded the silica-gel limit at 48h of exposure time. The higher absorbency in blends with higher contents of acid-treated RHs is likely due to higher porosity and improved adhesion properties owing to surface OH groups. Moreover, RH blends require shorter regeneration times than silica gel.",
keywords = "Desiccants, Moisture absorption, Natural-fiber blends, Rice husks, Water absorption",
author = "Zeynab Emdadi and Nilofar Asim and Yarmo, {Mohd. Ambar} and Mehdi Ebadi and Masita Mohammad and Kamaruzzaman Sopian",
year = "2017",
doi = "10.1002/ceat.201600105",
language = "English",
journal = "Chemical Engineering and Technology",
issn = "0930-7516",
publisher = "Wiley-VCH Verlag",

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TY - JOUR

T1 - Chemically Treated Rice Husk Blends as Green Desiccant Materials for Industrial Application

AU - Emdadi, Zeynab

AU - Asim, Nilofar

AU - Yarmo, Mohd. Ambar

AU - Ebadi, Mehdi

AU - Mohammad, Masita

AU - Sopian, Kamaruzzaman

PY - 2017

Y1 - 2017

N2 - The use of rice husks (RHs), treated RHs, and blends thereof as desiccants was studied. Bare RHs, treated RHs, and blends were characterized, and their water absorbances compared. Acid-treated RHs showed better moisture absorbance than alkali-treated RHs and hence were used to prepare blends. Moisture absorption of RH materials and silica gel were compared. Blends with a higher content of acid-treated RHs showed higher water and moisture absorbency. The moisture absorbency of the blends was enhanced, and they exceeded the silica-gel limit at 48h of exposure time. The higher absorbency in blends with higher contents of acid-treated RHs is likely due to higher porosity and improved adhesion properties owing to surface OH groups. Moreover, RH blends require shorter regeneration times than silica gel.

AB - The use of rice husks (RHs), treated RHs, and blends thereof as desiccants was studied. Bare RHs, treated RHs, and blends were characterized, and their water absorbances compared. Acid-treated RHs showed better moisture absorbance than alkali-treated RHs and hence were used to prepare blends. Moisture absorption of RH materials and silica gel were compared. Blends with a higher content of acid-treated RHs showed higher water and moisture absorbency. The moisture absorbency of the blends was enhanced, and they exceeded the silica-gel limit at 48h of exposure time. The higher absorbency in blends with higher contents of acid-treated RHs is likely due to higher porosity and improved adhesion properties owing to surface OH groups. Moreover, RH blends require shorter regeneration times than silica gel.

KW - Desiccants

KW - Moisture absorption

KW - Natural-fiber blends

KW - Rice husks

KW - Water absorption

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