Cellulose-metallothionein biosorbent for removal of Pb(II) and Zn(II) from polluted water

Wilson Mwandira

doi:10.1016/j.chemosphere.2019.125733

Cellulose-metallothionein biosorbent for removal of Pb(II) and Zn(II) from polluted water

Wilson Mwandira

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

49 Citations (Scopus)

Abstract

Intake of toxic trace elements in drinking water can lead to adverse health effects. To remove toxic trace elements from water, we developed a novel biosorbent composed of cellulose and a fusion protein. The fusion protein was constructed from metallothionein (MT) and a carbohydrate-binding module (CBM), where CBM can bind to cellulose while MT can capture heavy metal ions in solution. In a batch experiment, the biosorbent had maximum biosorption capacities for Pb(II) and Zn(II) ions of 39.02 mg/g and 29.28 mg/g, respectively. Furthermore, the biosorbent could be used in a semi-continuous system and showed good regeneration and recyclability. Both cellulose and the MT-CBM are environmentally friendly and renewable materials, and this biosorbent has great potential for efficient removal of toxic trace elements from polluted water.

Original language	English
Pages (from-to)	1-7
Journal	Chemosphere
DOIs	https://doi.org/10.1016/j.chemosphere.2019.125733
Publication status	Published - 26 Dec 2019
Externally published	Yes

Keywords

Metallothionein, Cellulose, Biosorbent, Adsorption, Metal ions, Mine wastewater

UN SDGs

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

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10.1016/j.chemosphere.2019.125733Licence: CC BY-NC-ND 4.0

Mwandira Chemo-MTCBM

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title = "Cellulose-metallothionein biosorbent for removal of Pb(II) and Zn(II) from polluted water",

abstract = "Intake of toxic trace elements in drinking water can lead to adverse health effects. To remove toxic trace elements from water, we developed a novel biosorbent composed of cellulose and a fusion protein. The fusion protein was constructed from metallothionein (MT) and a carbohydrate-binding module (CBM), where CBM can bind to cellulose while MT can capture heavy metal ions in solution. In a batch experiment, the biosorbent had maximum biosorption capacities for Pb(II) and Zn(II) ions of 39.02 mg/g and 29.28 mg/g, respectively. Furthermore, the biosorbent could be used in a semi-continuous system and showed good regeneration and recyclability. Both cellulose and the MT-CBM are environmentally friendly and renewable materials, and this biosorbent has great potential for efficient removal of toxic trace elements from polluted water.",

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T1 - Cellulose-metallothionein biosorbent for removal of Pb(II) and Zn(II) from polluted water

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N2 - Intake of toxic trace elements in drinking water can lead to adverse health effects. To remove toxic trace elements from water, we developed a novel biosorbent composed of cellulose and a fusion protein. The fusion protein was constructed from metallothionein (MT) and a carbohydrate-binding module (CBM), where CBM can bind to cellulose while MT can capture heavy metal ions in solution. In a batch experiment, the biosorbent had maximum biosorption capacities for Pb(II) and Zn(II) ions of 39.02 mg/g and 29.28 mg/g, respectively. Furthermore, the biosorbent could be used in a semi-continuous system and showed good regeneration and recyclability. Both cellulose and the MT-CBM are environmentally friendly and renewable materials, and this biosorbent has great potential for efficient removal of toxic trace elements from polluted water.

AB - Intake of toxic trace elements in drinking water can lead to adverse health effects. To remove toxic trace elements from water, we developed a novel biosorbent composed of cellulose and a fusion protein. The fusion protein was constructed from metallothionein (MT) and a carbohydrate-binding module (CBM), where CBM can bind to cellulose while MT can capture heavy metal ions in solution. In a batch experiment, the biosorbent had maximum biosorption capacities for Pb(II) and Zn(II) ions of 39.02 mg/g and 29.28 mg/g, respectively. Furthermore, the biosorbent could be used in a semi-continuous system and showed good regeneration and recyclability. Both cellulose and the MT-CBM are environmentally friendly and renewable materials, and this biosorbent has great potential for efficient removal of toxic trace elements from polluted water.

KW - Metallothionein, Cellulose, Biosorbent, Adsorption, Metal ions, Mine wastewater

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DO - 10.1016/j.chemosphere.2019.125733

M3 - Article

SN - 0045-6535

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EP - 7

JO - Chemosphere

JF - Chemosphere

ER -

Cellulose-metallothionein biosorbent for removal of Pb(II) and Zn(II) from polluted water

Abstract

Keywords

UN SDGs

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