A novel approach to developing a reusable marine macro-algae adsorbent with chitosan and ferric oxide for simultaneous efficient heavy metal removal and easy magnetic separation

Eun Bi Son; Kyung Min Poo; Hend Omar Mohamed; Yun Jeong Choi; Wan Cheol Cho; Kyu Jung Chae

doi:10.1016/j.biortech.2018.03.077

A novel approach to developing a reusable marine macro-algae adsorbent with chitosan and ferric oxide for simultaneous efficient heavy metal removal and easy magnetic separation

Eun Bi Son, Kyung Min Poo, Hend Omar Mohamed, Yun Jeong Choi, Wan Cheol Cho, Kyu Jung Chae^*

^*Corresponding author for this work

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

93 Scopus citations

Abstract

Chitosan modified magnetic kelp biochar (Chi-KB_m) was successfully synthesized for efficient removal of heavy metals (Cu²⁺) from wastewater. Interestingly, the characterization results indicated that Chi-KB_m showed 6 times higher surface area (6.17 m²/g) than the pristine magnetic kelp biochar KB_m (0.97 m²/g). In addition, new functional groups, such as NH and C–N group, have been created on the surface of biochar as a result of chitosan modification process, which in turns led to improve the Cu²⁺ adsorption capacity. The effect of pH and chitosan loading on heavy metal adsorption, and competition reaction of different metal ions adsorption were also investigated. Chi-KB_m exhibited a separation efficiency of more than 99.8%, which allows to recovery and reusability of the adsorbent material and heavy metals simultaneously. Overall, this study highlighted the Chi-KB_m is a promise adsorbent for heavy metal removal without sacrificing of the separation ability using magnetism.

Original language	English (US)
Pages (from-to)	381-387
Number of pages	7
Journal	Bioresource technology
Volume	259
DOIs	https://doi.org/10.1016/j.biortech.2018.03.077
State	Published - Jul 2018

Keywords

Chitosan
Magnetic separation
Marine macro-algae biochar
Metal adsorption
Reusability

ASJC Scopus subject areas

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

UN SDGs

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

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10.1016/j.biortech.2018.03.077

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title = "A novel approach to developing a reusable marine macro-algae adsorbent with chitosan and ferric oxide for simultaneous efficient heavy metal removal and easy magnetic separation",

abstract = "Chitosan modified magnetic kelp biochar (Chi-KBm) was successfully synthesized for efficient removal of heavy metals (Cu2+) from wastewater. Interestingly, the characterization results indicated that Chi-KBm showed 6 times higher surface area (6.17 m2/g) than the pristine magnetic kelp biochar KBm (0.97 m2/g). In addition, new functional groups, such as NH and C–N group, have been created on the surface of biochar as a result of chitosan modification process, which in turns led to improve the Cu2+ adsorption capacity. The effect of pH and chitosan loading on heavy metal adsorption, and competition reaction of different metal ions adsorption were also investigated. Chi-KBm exhibited a separation efficiency of more than 99.8%, which allows to recovery and reusability of the adsorbent material and heavy metals simultaneously. Overall, this study highlighted the Chi-KBm is a promise adsorbent for heavy metal removal without sacrificing of the separation ability using magnetism.",

keywords = "Chitosan, Magnetic separation, Marine macro-algae biochar, Metal adsorption, Reusability",

author = "Son, {Eun Bi} and Poo, {Kyung Min} and Mohamed, {Hend Omar} and Choi, {Yun Jeong} and Cho, {Wan Cheol} and Chae, {Kyu Jung}",

note = "Funding Information: This work was supported by the Korean Ministry of Environment as a Global Top Project [grant number 201600219008 ]; and in part as the Chemical Accident Prevention Technology Development Project [grant number 2017001960001 ]. Appendix A Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = jul,

doi = "10.1016/j.biortech.2018.03.077",

language = "English (US)",

volume = "259",

pages = "381--387",

journal = "Bioresource technology",

issn = "0960-8524",

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T1 - A novel approach to developing a reusable marine macro-algae adsorbent with chitosan and ferric oxide for simultaneous efficient heavy metal removal and easy magnetic separation

AU - Son, Eun Bi

AU - Poo, Kyung Min

AU - Mohamed, Hend Omar

AU - Choi, Yun Jeong

AU - Cho, Wan Cheol

AU - Chae, Kyu Jung

N1 - Funding Information: This work was supported by the Korean Ministry of Environment as a Global Top Project [grant number 201600219008 ]; and in part as the Chemical Accident Prevention Technology Development Project [grant number 2017001960001 ]. Appendix A Publisher Copyright: © 2018 Elsevier Ltd

PY - 2018/7

Y1 - 2018/7

N2 - Chitosan modified magnetic kelp biochar (Chi-KBm) was successfully synthesized for efficient removal of heavy metals (Cu2+) from wastewater. Interestingly, the characterization results indicated that Chi-KBm showed 6 times higher surface area (6.17 m2/g) than the pristine magnetic kelp biochar KBm (0.97 m2/g). In addition, new functional groups, such as NH and C–N group, have been created on the surface of biochar as a result of chitosan modification process, which in turns led to improve the Cu2+ adsorption capacity. The effect of pH and chitosan loading on heavy metal adsorption, and competition reaction of different metal ions adsorption were also investigated. Chi-KBm exhibited a separation efficiency of more than 99.8%, which allows to recovery and reusability of the adsorbent material and heavy metals simultaneously. Overall, this study highlighted the Chi-KBm is a promise adsorbent for heavy metal removal without sacrificing of the separation ability using magnetism.

AB - Chitosan modified magnetic kelp biochar (Chi-KBm) was successfully synthesized for efficient removal of heavy metals (Cu2+) from wastewater. Interestingly, the characterization results indicated that Chi-KBm showed 6 times higher surface area (6.17 m2/g) than the pristine magnetic kelp biochar KBm (0.97 m2/g). In addition, new functional groups, such as NH and C–N group, have been created on the surface of biochar as a result of chitosan modification process, which in turns led to improve the Cu2+ adsorption capacity. The effect of pH and chitosan loading on heavy metal adsorption, and competition reaction of different metal ions adsorption were also investigated. Chi-KBm exhibited a separation efficiency of more than 99.8%, which allows to recovery and reusability of the adsorbent material and heavy metals simultaneously. Overall, this study highlighted the Chi-KBm is a promise adsorbent for heavy metal removal without sacrificing of the separation ability using magnetism.

KW - Chitosan

KW - Magnetic separation

KW - Marine macro-algae biochar

KW - Metal adsorption

KW - Reusability

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ER -

A novel approach to developing a reusable marine macro-algae adsorbent with chitosan and ferric oxide for simultaneous efficient heavy metal removal and easy magnetic separation

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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