Versatile Cellulose-Based Carbon Aerogel for the Removal of Both Cationic and Anionic Metal Contaminants from Water

Sara Maaria Alatalo; Filoklis Pileidis; Ermei Mäkilä; Marta Sevilla; Eveliina Repo; Jarno Salonen; Mika Sillanpää; Maria Magdalena Titirici

doi:10.1021/acsami.5b08287

Versatile Cellulose-Based Carbon Aerogel for the Removal of Both Cationic and Anionic Metal Contaminants from Water

Sara Maaria Alatalo, Filoklis Pileidis, Ermei Mäkilä, Marta Sevilla, Eveliina Repo, Jarno Salonen, Mika Sillanpää, Maria Magdalena Titirici

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

131 Citations (Scopus)

Abstract

Hydrothermal carbonization of cellulose in the presence of the globular protein ovalbumin leads to the formation of nitrogen-doped carbon aerogel with a fibrillar continuous carbon network. The protein plays here a double role: (i) a natural source of nitrogen functionalities (2.1 wt %) and (ii) structural directing agent (S_BET = 38 m²/g). The applicability in wastewater treatment, namely, for heavy metal removal, was examined through adsorption of Cr(VI) and Pb(II) ion solely and in a mixed bicomponent aqueous solutions. This cellulose-based carbogel shows an enhanced ability to remove both Cr(VI) (∼68 mg/g) and Pb(II) (∼240 mg/g) from the targeted solutions in comparison to other carbon materials reported in the literature. The presence of competing ions showed little effect on the adsorption efficiency toward Cr(VI) and Pb(II).

Original language	English
Pages (from-to)	25875-25883
Number of pages	9
Journal	ACS applied materials & interfaces
Volume	7
Issue number	46
DOIs	https://doi.org/10.1021/acsami.5b08287
Publication status	Published - 25 Nov 2015
Externally published	Yes

Keywords

adsorption
carbon aerogel
heavy metals removal
hydrothermal carbonization
water purification

ASJC Scopus subject areas

General Materials Science

UN SDGs

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

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10.1021/acsami.5b08287

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title = "Versatile Cellulose-Based Carbon Aerogel for the Removal of Both Cationic and Anionic Metal Contaminants from Water",

abstract = "Hydrothermal carbonization of cellulose in the presence of the globular protein ovalbumin leads to the formation of nitrogen-doped carbon aerogel with a fibrillar continuous carbon network. The protein plays here a double role: (i) a natural source of nitrogen functionalities (2.1 wt %) and (ii) structural directing agent (SBET = 38 m2/g). The applicability in wastewater treatment, namely, for heavy metal removal, was examined through adsorption of Cr(VI) and Pb(II) ion solely and in a mixed bicomponent aqueous solutions. This cellulose-based carbogel shows an enhanced ability to remove both Cr(VI) (∼68 mg/g) and Pb(II) (∼240 mg/g) from the targeted solutions in comparison to other carbon materials reported in the literature. The presence of competing ions showed little effect on the adsorption efficiency toward Cr(VI) and Pb(II).",

keywords = "adsorption, carbon aerogel, heavy metals removal, hydrothermal carbonization, water purification",

author = "Alatalo, {Sara Maaria} and Filoklis Pileidis and Ermei M{\"a}kil{\"a} and Marta Sevilla and Eveliina Repo and Jarno Salonen and Mika Sillanp{\"a}{\"a} and Titirici, {Maria Magdalena}",

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year = "2015",

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doi = "10.1021/acsami.5b08287",

language = "English",

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T1 - Versatile Cellulose-Based Carbon Aerogel for the Removal of Both Cationic and Anionic Metal Contaminants from Water

AU - Alatalo, Sara Maaria

AU - Pileidis, Filoklis

AU - Mäkilä, Ermei

AU - Sevilla, Marta

AU - Repo, Eveliina

AU - Salonen, Jarno

AU - Sillanpää, Mika

AU - Titirici, Maria Magdalena

PY - 2015/11/25

Y1 - 2015/11/25

N2 - Hydrothermal carbonization of cellulose in the presence of the globular protein ovalbumin leads to the formation of nitrogen-doped carbon aerogel with a fibrillar continuous carbon network. The protein plays here a double role: (i) a natural source of nitrogen functionalities (2.1 wt %) and (ii) structural directing agent (SBET = 38 m2/g). The applicability in wastewater treatment, namely, for heavy metal removal, was examined through adsorption of Cr(VI) and Pb(II) ion solely and in a mixed bicomponent aqueous solutions. This cellulose-based carbogel shows an enhanced ability to remove both Cr(VI) (∼68 mg/g) and Pb(II) (∼240 mg/g) from the targeted solutions in comparison to other carbon materials reported in the literature. The presence of competing ions showed little effect on the adsorption efficiency toward Cr(VI) and Pb(II).

AB - Hydrothermal carbonization of cellulose in the presence of the globular protein ovalbumin leads to the formation of nitrogen-doped carbon aerogel with a fibrillar continuous carbon network. The protein plays here a double role: (i) a natural source of nitrogen functionalities (2.1 wt %) and (ii) structural directing agent (SBET = 38 m2/g). The applicability in wastewater treatment, namely, for heavy metal removal, was examined through adsorption of Cr(VI) and Pb(II) ion solely and in a mixed bicomponent aqueous solutions. This cellulose-based carbogel shows an enhanced ability to remove both Cr(VI) (∼68 mg/g) and Pb(II) (∼240 mg/g) from the targeted solutions in comparison to other carbon materials reported in the literature. The presence of competing ions showed little effect on the adsorption efficiency toward Cr(VI) and Pb(II).

KW - adsorption

KW - carbon aerogel

KW - heavy metals removal

KW - hydrothermal carbonization

KW - water purification

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U2 - 10.1021/acsami.5b08287

DO - 10.1021/acsami.5b08287

M3 - Article

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AN - SCOPUS:84948693561

SN - 1944-8244

VL - 7

SP - 25875

EP - 25883

JO - ACS applied materials & interfaces

JF - ACS applied materials & interfaces

IS - 46

ER -

Versatile Cellulose-Based Carbon Aerogel for the Removal of Both Cationic and Anionic Metal Contaminants from Water

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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