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287509

Optimization and Characterization of Bio-Silica Extraction from Rice Straw Using RSM

Article

Last updated: 01 Jan 2025

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Subjects

-

Tags

Environmental chemistry

Abstract

Egypt produces about 7.86 million tons of rice straw annually. Egyptian farmers have traditionally gathered and burnt rice straws in the field in the open for rapid disposal. Environmentalists have recently attacked the practice, and legislation was passed to limit open burning, which pollutes the environment in many nations. The purpose of this research is to extract amorphous bio-silica from rice straw after burning it to produce ash, then use sodium hydroxide for an alkaline extraction to produce a sodium silicate solution. Hydrochloric acid was added to a solution of sodium silicate to precipitate silica. Temperature, time, and concentration were the three main variables that influenced alkaline extraction. To improve these values, a response surface strategy was adopted. The reaction occurred between 30 and 90 °C, extraction time between 1 and 3 h, and had a sodium hydroxide concentration of 1 and 3N. At 90°C, 3N sodium hydroxide concentration, and 3 hours, the highest yield of silica is anticipated to be 83%. The produced bio-silica was characterized using XRF, XRD, FTIR and SEM. The results indicated that precipitated bio-silica can be extracted from rice straw to produce a high yield and used in different applications.

DOI

10.21608/ejchem.2023.161205.6968

Keywords

rice straw, Optimization, Response surface methodology, Alkaline Extraction - Silica

Authors

First Name

Eman

Last Name

Abdel Hamid

MiddleName

Mohamed

Affiliation

Chemical Engineering Department, Egyptian Academy for Engineering and Advanced Technology, Cairo, Egypt

Email

eman.mohamed@eaeat.edu.eg

City

Cairo

Orcid

0000-0002-1390-3773

First Name

Mohamed

Last Name

Ismail

MiddleName

-

Affiliation

Chemical Engineering Department, Egyptian Academy for Engineering and Advanced Technology, Cairo, Egypt

Email

mohamedahmedismail12@gmail.com

City

Cairo

Orcid

-

First Name

Mohanned

Last Name

Moussa

MiddleName

-

Affiliation

Chemical Engineering Department, Egyptian Academy for Engineering and Advanced Technology, Cairo, Egypt

Email

mohannedmoussa@gmail.com

City

Cairo

Orcid

-

First Name

Mostafa

Last Name

Abdel Aziz

MiddleName

-

Affiliation

Chemical Engineering Department, Egyptian Academy for Engineering and Advanced Technology, Cairo, Egypt

Email

zezomostafa1998@gmail.com

City

Cairo

Orcid

-

First Name

Moamen

Last Name

Sobhy

MiddleName

-

Affiliation

Chemical Engineering Department, Egyptian Academy for Engineering and Advanced Technology, Cairo, Egypt

Email

momenedu27@gmail.com

City

Cairo

Orcid

-

First Name

Ramadan

Last Name

Mohamed

MiddleName

-

Affiliation

Chemical Engineering Department, Egyptian Academy for Engineering and Advanced Technology, Cairo, Egypt

Email

ra1ma3da1n@gmail.com

City

Cairo

Orcid

-

First Name

Yousef

Last Name

Mohamed

MiddleName

-

Affiliation

Chemical Engineering Department, Egyptian Academy for Engineering and Advanced Technology, Cairo, Egypt

Email

youseffay55@gmail.com

City

-

Orcid

-

Volume

66

Article Issue

11

Related Issue

43443

Issue Date

2023-11-01

Receive Date

2022-09-12

Publish Date

2023-11-01

Page Start

373

Page End

383

Print ISSN

0449-2285

Online ISSN

2357-0245

Article File

EJCHEM_Volume 66_Issue 11_Pages 373-383.pdf

PDF . 1.3MB

Link

https://ejchem.journals.ekb.eg/article_287509.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=287509

Order

287,509

Type

Original Article

Type Code

297

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle

Optimization and Characterization of Bio-Silica Extraction from Rice Straw Using RSM

Details

Type

Article

Created At

30 Dec 2024