Mechanistic insights of 2,4-D sorption onto biochar

Influence of feedstock materials and biochar properties

Sanchita Mandal, Binoy Sarkar, Avanthi Deshani Igalavithana, Yong Sik Ok, Xiao Yang, Enzo Lombi, Nanthi Bolan

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Objective of this study was to investigate the mechanisms of 2,4-Dichlorophynoxy acetic acid (2,4-D) sorption on biochar in aqueous solutions. Sorption isotherm, kinetics, and desorption experiments were performed to identify the role of biochars’ feedstock and production conditions on 2,4-D sorption. Biochars were prepared from various green wastes (tea, burcucumber, and hardwood) at two pyrolytic temperatures (400 and 700 °C). The tea waste biochar produced at 700 °C was further activated with steam under a controlled flow. The sorption of 2,4-D was strongly dependent on the biochar properties such as specific surface area, surface functional groups, and microporosity. The steam activated biochar produced from tea waste showed the highest (58.8 mg g−1) 2,4-D sorption capacity, which was attributed to the high specific surface area (576 m2 g−1). The mechanism of 2,4-D removal from aqueous solution by biochar is mainly attributed to the formation of heterogeneous sorption sites due to the steam activation.

Original languageEnglish
Pages (from-to)160-167
Number of pages8
JournalBioresource Technology
Volume246
DOIs
Publication statusPublished - 2017 Dec 1

Fingerprint

2,4-Dichlorophenoxyacetic Acid
2,4 dichlorophenoxyacetic acid
Feedstocks
Sorption
sorption
tea
Steam
Specific surface area
aqueous solution
surface area
Microporosity
Hardwoods
Acetic acid
acetic acid
Functional groups
functional group
Isotherms
biochar
material
Desorption

Keywords

  • 2,4-D
  • Biochar
  • Physical activation
  • Pyrolysis
  • Sorption kinetics

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

Cite this

Mechanistic insights of 2,4-D sorption onto biochar : Influence of feedstock materials and biochar properties. / Mandal, Sanchita; Sarkar, Binoy; Igalavithana, Avanthi Deshani; Ok, Yong Sik; Yang, Xiao; Lombi, Enzo; Bolan, Nanthi.

In: Bioresource Technology, Vol. 246, 01.12.2017, p. 160-167.

Research output: Contribution to journalArticle

Mandal, Sanchita ; Sarkar, Binoy ; Igalavithana, Avanthi Deshani ; Ok, Yong Sik ; Yang, Xiao ; Lombi, Enzo ; Bolan, Nanthi. / Mechanistic insights of 2,4-D sorption onto biochar : Influence of feedstock materials and biochar properties. In: Bioresource Technology. 2017 ; Vol. 246. pp. 160-167.
@article{0a3324de59414053b1d8fe3691264960,
title = "Mechanistic insights of 2,4-D sorption onto biochar: Influence of feedstock materials and biochar properties",
abstract = "Objective of this study was to investigate the mechanisms of 2,4-Dichlorophynoxy acetic acid (2,4-D) sorption on biochar in aqueous solutions. Sorption isotherm, kinetics, and desorption experiments were performed to identify the role of biochars’ feedstock and production conditions on 2,4-D sorption. Biochars were prepared from various green wastes (tea, burcucumber, and hardwood) at two pyrolytic temperatures (400 and 700 °C). The tea waste biochar produced at 700 °C was further activated with steam under a controlled flow. The sorption of 2,4-D was strongly dependent on the biochar properties such as specific surface area, surface functional groups, and microporosity. The steam activated biochar produced from tea waste showed the highest (58.8 mg g−1) 2,4-D sorption capacity, which was attributed to the high specific surface area (576 m2 g−1). The mechanism of 2,4-D removal from aqueous solution by biochar is mainly attributed to the formation of heterogeneous sorption sites due to the steam activation.",
keywords = "2,4-D, Biochar, Physical activation, Pyrolysis, Sorption kinetics",
author = "Sanchita Mandal and Binoy Sarkar and Igalavithana, {Avanthi Deshani} and Ok, {Yong Sik} and Xiao Yang and Enzo Lombi and Nanthi Bolan",
year = "2017",
month = "12",
day = "1",
doi = "10.1016/j.biortech.2017.07.073",
language = "English",
volume = "246",
pages = "160--167",
journal = "Bioresource Technology",
issn = "0960-8524",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Mechanistic insights of 2,4-D sorption onto biochar

T2 - Influence of feedstock materials and biochar properties

AU - Mandal, Sanchita

AU - Sarkar, Binoy

AU - Igalavithana, Avanthi Deshani

AU - Ok, Yong Sik

AU - Yang, Xiao

AU - Lombi, Enzo

AU - Bolan, Nanthi

PY - 2017/12/1

Y1 - 2017/12/1

N2 - Objective of this study was to investigate the mechanisms of 2,4-Dichlorophynoxy acetic acid (2,4-D) sorption on biochar in aqueous solutions. Sorption isotherm, kinetics, and desorption experiments were performed to identify the role of biochars’ feedstock and production conditions on 2,4-D sorption. Biochars were prepared from various green wastes (tea, burcucumber, and hardwood) at two pyrolytic temperatures (400 and 700 °C). The tea waste biochar produced at 700 °C was further activated with steam under a controlled flow. The sorption of 2,4-D was strongly dependent on the biochar properties such as specific surface area, surface functional groups, and microporosity. The steam activated biochar produced from tea waste showed the highest (58.8 mg g−1) 2,4-D sorption capacity, which was attributed to the high specific surface area (576 m2 g−1). The mechanism of 2,4-D removal from aqueous solution by biochar is mainly attributed to the formation of heterogeneous sorption sites due to the steam activation.

AB - Objective of this study was to investigate the mechanisms of 2,4-Dichlorophynoxy acetic acid (2,4-D) sorption on biochar in aqueous solutions. Sorption isotherm, kinetics, and desorption experiments were performed to identify the role of biochars’ feedstock and production conditions on 2,4-D sorption. Biochars were prepared from various green wastes (tea, burcucumber, and hardwood) at two pyrolytic temperatures (400 and 700 °C). The tea waste biochar produced at 700 °C was further activated with steam under a controlled flow. The sorption of 2,4-D was strongly dependent on the biochar properties such as specific surface area, surface functional groups, and microporosity. The steam activated biochar produced from tea waste showed the highest (58.8 mg g−1) 2,4-D sorption capacity, which was attributed to the high specific surface area (576 m2 g−1). The mechanism of 2,4-D removal from aqueous solution by biochar is mainly attributed to the formation of heterogeneous sorption sites due to the steam activation.

KW - 2,4-D

KW - Biochar

KW - Physical activation

KW - Pyrolysis

KW - Sorption kinetics

UR - http://www.scopus.com/inward/record.url?scp=85025803465&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85025803465&partnerID=8YFLogxK

U2 - 10.1016/j.biortech.2017.07.073

DO - 10.1016/j.biortech.2017.07.073

M3 - Article

VL - 246

SP - 160

EP - 167

JO - Bioresource Technology

JF - Bioresource Technology

SN - 0960-8524

ER -