English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Eco-friendly and facile synthesis of size-controlled spherical silica particles from rice husk

Kim, S., Park, J. Y., Gu, Y. M., Jang, I.-S., Park, H., Oh, K. K., et al. (2021). Eco-friendly and facile synthesis of size-controlled spherical silica particles from rice husk. Nanoscale Advances, 3(24), 6965-6973. doi:10.1039/D1NA00668A.

Item is

Basic

show hide
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Kim, Seongseop1, Author              
Park, Ji Yeon2, 3, Author
Gu, Yang Mo2, 3, Author
Jang, Il-Seop4, 5, Author
Park, Hayoung4, 5, Author
Oh, Kyeong Keun6, Author
Lee, Jin Hyung2, Author
Chun, Jinyoung4, Author
Affiliations:
1Research Group Tüysüz, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1950290              
2Convergence R&D Division, Korea Institute of Ceramic Engineering and Technology (KICET), Cheongju, Chungbuk 28160, Republic of Korea, ou_persistent22              
3Division of Chemical Engineering & Bio Engineering, Hanyang University, Seoul, Republic of Korea, ou_persistent22              
4Energy and Environment Division, Korea Institute of Ceramic Engineering and Technology (KICET), Jinju, Gyeongnam 52851, Republic of Korea, ou_persistent22              
5Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea , ou_persistent22              
6Department of Chemical Engineering, Dankook University, Yongin, Gyeonggi 16890, Republic of Korea , ou_persistent22              

Content

show
hide
Free keywords: -
 Abstract: The valorization of inorganic silica components from rice husk has been considered an important research topic over the last few decades. However, owing to various problems, such as the difficulty in controlling precise morphological properties, complex extraction and manufacturing processes, and the use of hazardous acids, the technology for producing high value-added silica for industrial applications is still insufficient. In this study, we developed a method for obtaining size-controlled spherical silica from rice husk using an eco-friendly and simplified process that overcomes the above-mentioned limitations. Silica particles were obtained by extraction from rice husk in alkaline media under mild conditions (80 °C) followed by pH adjustment with acetic acid. Therefore, the use of strong acids was excluded, no special equipment was required for the process, and the overall synthetic process was significantly simplified. The silica particles obtained through this method were uniformly spherical in shape, with a surface area of more than 200 m2 g−1. Our results indicate that the preparation of silicate solution under appropriate conditions and the use of polyethylene glycol (PEG) additives during the precipitation step are important for obtaining spherical silica. Moreover, by adjusting the temperature in the precipitation step, the size of the spherical silica particles can be controlled in the range of ∼250 nm to ∼1.4 μm. Our study contributes to the development of rice husk-derived silica that can be applied to practical industrial applications.

Details

show
hide
Language(s): eng - English
 Dates: 2021-09-072021-10-082021-12-21
 Publication Status: Published online
 Pages: 9
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1039/D1NA00668A
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Nanoscale Advances
  Abbreviation : Nanoscale Adv.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Cambridge, UK : Royal Society of Chemistry
Pages: - Volume / Issue: 3 (24) Sequence Number: - Start / End Page: 6965 - 6973 Identifier: ISSN: 2516-0230
CoNE: https://pure.mpg.de/cone/journals/resource/2516-0230