Synthesis and efficiency comparison of reed straw-based biochar as a mesoporous adsorbent for ionic dyes removal

Oleksii Tomin; Riku Vahala; Maryam R. Yazdani

doi:10.1016/j.heliyon.2024.e24722

Synthesis and efficiency comparison of reed straw-based biochar as a mesoporous adsorbent for ionic dyes removal

Oleksii Tomin^*
, Riku Vahala
, Maryam R. Yazdani^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

36 Citations (Scopus)

116 Downloads (Pure)

Abstract

The reed straw is assessed as a potential source of widely available renewable biomass for biochar production and compared with two other waste-based biomasses, namely fruit stones blend, and brewery spent grains. The biochars were activated via steam and CO₂. While steam activation yielded 12 % carbon from reed biomass, CO₂ activation resulted in biomass degradation. The characterization of reed biochar showed a mesoporous structure and a high surface area of 514 m²/g. The adsorption tests displayed a decent adsorption capacity of biochar, with values of 92.6 mg/g for methylene violet dye and 35.7 mg/g for acid green dye. Only 1 g/L dosage of reed biochar was able to remove 99 % of the 50 mg/L methylene violet solution in 15 min and 60 % of the 50 mg/L acid green solution in 10 min. The obtained results demonstrate reed biomass as a suitable source for biochar production as well as reed-based biochar as a promising dye adsorbent.

Original language	English
Article number	e24722
Number of pages	11
Journal	Heliyon
Volume	10
Issue number	2
DOIs	https://doi.org/10.1016/j.heliyon.2024.e24722
Publication status	Published - 30 Jan 2024
MoE publication type	A1 Journal article-refereed

Funding

This work was funded by Maa ja vesitekniikan tuki ry [Grant number 388823 ] and Aalto University [Grant number D/23/00.01.02.00/2019 ].

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 13 Climate Action

Keywords

Biochar
CO activation
Dyes adsorption
Mesoporous adsorbent
Reed straw biomass
Steam activation
Waste biomass
Water treatment

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10.1016/j.heliyon.2024.e24722Licence: CC BY

1-s2.0-S2405844024007539-mainFinal published version, 5.5 MBLicence: CC BY

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title = "Synthesis and efficiency comparison of reed straw-based biochar as a mesoporous adsorbent for ionic dyes removal",

abstract = "The reed straw is assessed as a potential source of widely available renewable biomass for biochar production and compared with two other waste-based biomasses, namely fruit stones blend, and brewery spent grains. The biochars were activated via steam and CO2. While steam activation yielded 12 \% carbon from reed biomass, CO2 activation resulted in biomass degradation. The characterization of reed biochar showed a mesoporous structure and a high surface area of 514 m2/g. The adsorption tests displayed a decent adsorption capacity of biochar, with values of 92.6 mg/g for methylene violet dye and 35.7 mg/g for acid green dye. Only 1 g/L dosage of reed biochar was able to remove 99 \% of the 50 mg/L methylene violet solution in 15 min and 60 \% of the 50 mg/L acid green solution in 10 min. The obtained results demonstrate reed biomass as a suitable source for biochar production as well as reed-based biochar as a promising dye adsorbent.",

keywords = "Biochar, CO activation, Dyes adsorption, Mesoporous adsorbent, Reed straw biomass, Steam activation, Waste biomass, Water treatment",

author = "Oleksii Tomin and Riku Vahala and Yazdani, \{Maryam R.\}",

note = "Funding Information: This work was funded by Maa ja vesitekniikan tuki ry [Grant number 388823 ] and Aalto University [Grant number D/23/00.01.02.00/2019 ]. Publisher Copyright: {\textcopyright} 2024 The Authors",

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doi = "10.1016/j.heliyon.2024.e24722",

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AU - Tomin, Oleksii

AU - Vahala, Riku

AU - Yazdani, Maryam R.

N1 - Funding Information: This work was funded by Maa ja vesitekniikan tuki ry [Grant number 388823 ] and Aalto University [Grant number D/23/00.01.02.00/2019 ]. Publisher Copyright: © 2024 The Authors

PY - 2024/1/30

Y1 - 2024/1/30

N2 - The reed straw is assessed as a potential source of widely available renewable biomass for biochar production and compared with two other waste-based biomasses, namely fruit stones blend, and brewery spent grains. The biochars were activated via steam and CO2. While steam activation yielded 12 % carbon from reed biomass, CO2 activation resulted in biomass degradation. The characterization of reed biochar showed a mesoporous structure and a high surface area of 514 m2/g. The adsorption tests displayed a decent adsorption capacity of biochar, with values of 92.6 mg/g for methylene violet dye and 35.7 mg/g for acid green dye. Only 1 g/L dosage of reed biochar was able to remove 99 % of the 50 mg/L methylene violet solution in 15 min and 60 % of the 50 mg/L acid green solution in 10 min. The obtained results demonstrate reed biomass as a suitable source for biochar production as well as reed-based biochar as a promising dye adsorbent.

AB - The reed straw is assessed as a potential source of widely available renewable biomass for biochar production and compared with two other waste-based biomasses, namely fruit stones blend, and brewery spent grains. The biochars were activated via steam and CO2. While steam activation yielded 12 % carbon from reed biomass, CO2 activation resulted in biomass degradation. The characterization of reed biochar showed a mesoporous structure and a high surface area of 514 m2/g. The adsorption tests displayed a decent adsorption capacity of biochar, with values of 92.6 mg/g for methylene violet dye and 35.7 mg/g for acid green dye. Only 1 g/L dosage of reed biochar was able to remove 99 % of the 50 mg/L methylene violet solution in 15 min and 60 % of the 50 mg/L acid green solution in 10 min. The obtained results demonstrate reed biomass as a suitable source for biochar production as well as reed-based biochar as a promising dye adsorbent.

KW - Biochar

KW - CO activation

KW - Dyes adsorption

KW - Mesoporous adsorbent

KW - Reed straw biomass

KW - Steam activation

KW - Waste biomass

KW - Water treatment

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DO - 10.1016/j.heliyon.2024.e24722

M3 - Article

AN - SCOPUS:85182796303

SN - 2405-8440

VL - 10

JO - Heliyon

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ER -

Synthesis and efficiency comparison of reed straw-based biochar as a mesoporous adsorbent for ionic dyes removal

Abstract

Funding

UN SDGs

Keywords

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