Adsorptive removal of artificial sweeteners from water using porous carbons derived from metal azolate framework-6

Ji Yoon Song; Biswa Nath Bhadra; Nazmul Abedin Khan; Sung Hwa Jhung

doi:10.1016/j.micromeso.2017.10.021

Adsorptive removal of artificial sweeteners from water using porous carbons derived from metal azolate framework-6

Ji Yoon Song
, Biswa Nath Bhadra
, Nazmul Abedin Khan
, Sung Hwa Jhung

Kyungpook National University

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

63 Scopus citations

Abstract

Elimination of artificial sweeteners (ASWs) from water is receiving much attention these days because of their detrimental effects. In this study, metal organic framework (here, metal azolate framework-6 (MAF-6))-derived porous carbons (MDCs) prepared for different pyrolysis times were used to remove ASWs such as saccharin, acesulfame, and cyclamate from water. The MDC prepared for 6 h (MDC-6h) showed a remarkably high adsorption capacity compared to that of commercial activated carbon (AC) and other adsorbents. For example, MDC-6h adsorbed 93 mg/g of saccharin from water after 12 h of adsorption whereas AC adsorbed only 4.7 mg/g under the same condition. Moreover, H-bonding between the surface functional groups of MDC and ASWs was suggested as the main mechanism of ASW adsorption, where MDC-6h (especially the phenolic group) and the ASW act as the H-donor and H-acceptor, respectively. Additionally, MDC-6h can be easily regenerated by simply washing with acetone. Therefore, MDC-6h is recommended as an outstanding adsorbent for ASW removal from water.

Original language	English
Pages (from-to)	1-8
Number of pages	8
Journal	Microporous and Mesoporous Materials
Volume	260
DOIs	https://doi.org/10.1016/j.micromeso.2017.10.021
State	Published - Apr 2018

Keywords

Adsorption
Artificial sweeteners
H-bond
MAF-6
MOF-derived carbons

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10.1016/j.micromeso.2017.10.021

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@article{4ce0663fbce74336a6dc3279aeb60721,

title = "Adsorptive removal of artificial sweeteners from water using porous carbons derived from metal azolate framework-6",

abstract = "Elimination of artificial sweeteners (ASWs) from water is receiving much attention these days because of their detrimental effects. In this study, metal organic framework (here, metal azolate framework-6 (MAF-6))-derived porous carbons (MDCs) prepared for different pyrolysis times were used to remove ASWs such as saccharin, acesulfame, and cyclamate from water. The MDC prepared for 6 h (MDC-6h) showed a remarkably high adsorption capacity compared to that of commercial activated carbon (AC) and other adsorbents. For example, MDC-6h adsorbed 93 mg/g of saccharin from water after 12 h of adsorption whereas AC adsorbed only 4.7 mg/g under the same condition. Moreover, H-bonding between the surface functional groups of MDC and ASWs was suggested as the main mechanism of ASW adsorption, where MDC-6h (especially the phenolic group) and the ASW act as the H-donor and H-acceptor, respectively. Additionally, MDC-6h can be easily regenerated by simply washing with acetone. Therefore, MDC-6h is recommended as an outstanding adsorbent for ASW removal from water.",

keywords = "Adsorption, Artificial sweeteners, H-bond, MAF-6, MOF-derived carbons",

author = "Song, \{Ji Yoon\} and Bhadra, \{Biswa Nath\} and Khan, \{Nazmul Abedin\} and Jhung, \{Sung Hwa\}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Inc.",

year = "2018",

month = apr,

doi = "10.1016/j.micromeso.2017.10.021",

language = "English",

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T1 - Adsorptive removal of artificial sweeteners from water using porous carbons derived from metal azolate framework-6

AU - Song, Ji Yoon

AU - Bhadra, Biswa Nath

AU - Khan, Nazmul Abedin

AU - Jhung, Sung Hwa

PY - 2018/4

Y1 - 2018/4

N2 - Elimination of artificial sweeteners (ASWs) from water is receiving much attention these days because of their detrimental effects. In this study, metal organic framework (here, metal azolate framework-6 (MAF-6))-derived porous carbons (MDCs) prepared for different pyrolysis times were used to remove ASWs such as saccharin, acesulfame, and cyclamate from water. The MDC prepared for 6 h (MDC-6h) showed a remarkably high adsorption capacity compared to that of commercial activated carbon (AC) and other adsorbents. For example, MDC-6h adsorbed 93 mg/g of saccharin from water after 12 h of adsorption whereas AC adsorbed only 4.7 mg/g under the same condition. Moreover, H-bonding between the surface functional groups of MDC and ASWs was suggested as the main mechanism of ASW adsorption, where MDC-6h (especially the phenolic group) and the ASW act as the H-donor and H-acceptor, respectively. Additionally, MDC-6h can be easily regenerated by simply washing with acetone. Therefore, MDC-6h is recommended as an outstanding adsorbent for ASW removal from water.

AB - Elimination of artificial sweeteners (ASWs) from water is receiving much attention these days because of their detrimental effects. In this study, metal organic framework (here, metal azolate framework-6 (MAF-6))-derived porous carbons (MDCs) prepared for different pyrolysis times were used to remove ASWs such as saccharin, acesulfame, and cyclamate from water. The MDC prepared for 6 h (MDC-6h) showed a remarkably high adsorption capacity compared to that of commercial activated carbon (AC) and other adsorbents. For example, MDC-6h adsorbed 93 mg/g of saccharin from water after 12 h of adsorption whereas AC adsorbed only 4.7 mg/g under the same condition. Moreover, H-bonding between the surface functional groups of MDC and ASWs was suggested as the main mechanism of ASW adsorption, where MDC-6h (especially the phenolic group) and the ASW act as the H-donor and H-acceptor, respectively. Additionally, MDC-6h can be easily regenerated by simply washing with acetone. Therefore, MDC-6h is recommended as an outstanding adsorbent for ASW removal from water.

KW - Adsorption

KW - Artificial sweeteners

KW - H-bond

KW - MAF-6

KW - MOF-derived carbons

UR - https://www.scopus.com/pages/publications/85032863101

U2 - 10.1016/j.micromeso.2017.10.021

DO - 10.1016/j.micromeso.2017.10.021

M3 - Article

AN - SCOPUS:85032863101

SN - 1387-1811

VL - 260

SP - 1

EP - 8

JO - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

ER -

Adsorptive removal of artificial sweeteners from water using porous carbons derived from metal azolate framework-6

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Keywords

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