Adsorptive removal of aromatic hydrocarbons from water over metal azolate framework-6-derived carbons

Biswa Nath Bhadra; Ji Yoon Song; Su Kyung Lee; Young Kyu Hwang; Sung Hwa Jhung

doi:10.1016/j.jhazmat.2017.11.057

Adsorptive removal of aromatic hydrocarbons from water over metal azolate framework-6-derived carbons

Biswa Nath Bhadra
, Ji Yoon Song
, Su Kyung Lee
, Young Kyu Hwang
, Sung Hwa Jhung

Kyungpook National University
Korea Research Institute of Chemical Technology
Korea Advanced Institute of Science and Technology
University of Science and Technology UST

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

71 Scopus citations

Abstract

Metal azolate framework-6 (MAF-6) was pyrolyzed at 1000 °C to yield MOF-derived carbons (MCs). The obtained MCs were used to eliminate aromatic hydrocarbons, including polyaromatic hydrocarbons (PAHs; e.g., naphthalene (NAP), anthracene (ATC), and pyrene (PRN)) and benzene (BZ) from water via adsorption. The adsorption results over the MCs were compared with that of pristine MAF-6 and commercial activated carbon (AC). MC obtained after 24 h (MC-24) exhibited a remarkable adsorption efficiency compared to that of the other MCs (obtained after different durations), MAF-6, and AC. For example, MC-24 led to adsorptions of NAP around 17 and 2.5 times those of pristine MAF-6 and AC, respectively. Or, the maximum adsorption capacities (Q₀) of MAF-6, AC and MC-24 for NAP were 14, 104 and 237 mg/g, respectively. Moreover, Q₀ values of MC-24 for ATC and PRN were also very high of 284 and 307 mg/g, respectively. Based on the properties of PAHs and the hydrophobicity of MC-24, hydrophobic interaction was suggested as the main mechanism for the adsorption of PAHs and BZ. In addition, MC-24 can be recycled by washing with acetone with little loss in performance. Therefore, MC-24 is recommended as a competitive adsorbent for aromatic hydrocarbon removal from water.

Original language	English
Pages (from-to)	1069-1077
Number of pages	9
Journal	Journal of Hazardous Materials
Volume	344
DOIs	https://doi.org/10.1016/j.jhazmat.2017.11.057
State	Published - 15 Feb 2018

Keywords

Adsorption
Aromatic hydrocarbons
Hydrophobicity
MAF-6
MOF-derived carbons

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10.1016/j.jhazmat.2017.11.057

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title = "Adsorptive removal of aromatic hydrocarbons from water over metal azolate framework-6-derived carbons",

abstract = "Metal azolate framework-6 (MAF-6) was pyrolyzed at 1000 °C to yield MOF-derived carbons (MCs). The obtained MCs were used to eliminate aromatic hydrocarbons, including polyaromatic hydrocarbons (PAHs; e.g., naphthalene (NAP), anthracene (ATC), and pyrene (PRN)) and benzene (BZ) from water via adsorption. The adsorption results over the MCs were compared with that of pristine MAF-6 and commercial activated carbon (AC). MC obtained after 24 h (MC-24) exhibited a remarkable adsorption efficiency compared to that of the other MCs (obtained after different durations), MAF-6, and AC. For example, MC-24 led to adsorptions of NAP around 17 and 2.5 times those of pristine MAF-6 and AC, respectively. Or, the maximum adsorption capacities (Q0) of MAF-6, AC and MC-24 for NAP were 14, 104 and 237 mg/g, respectively. Moreover, Q0 values of MC-24 for ATC and PRN were also very high of 284 and 307 mg/g, respectively. Based on the properties of PAHs and the hydrophobicity of MC-24, hydrophobic interaction was suggested as the main mechanism for the adsorption of PAHs and BZ. In addition, MC-24 can be recycled by washing with acetone with little loss in performance. Therefore, MC-24 is recommended as a competitive adsorbent for aromatic hydrocarbon removal from water.",

keywords = "Adsorption, Aromatic hydrocarbons, Hydrophobicity, MAF-6, MOF-derived carbons",

author = "Bhadra, \{Biswa Nath\} and Song, \{Ji Yoon\} and Lee, \{Su Kyung\} and Hwang, \{Young Kyu\} and Jhung, \{Sung Hwa\}",

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

year = "2018",

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day = "15",

doi = "10.1016/j.jhazmat.2017.11.057",

language = "English",

volume = "344",

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TY - JOUR

T1 - Adsorptive removal of aromatic hydrocarbons from water over metal azolate framework-6-derived carbons

AU - Bhadra, Biswa Nath

AU - Song, Ji Yoon

AU - Lee, Su Kyung

AU - Hwang, Young Kyu

AU - Jhung, Sung Hwa

PY - 2018/2/15

Y1 - 2018/2/15

N2 - Metal azolate framework-6 (MAF-6) was pyrolyzed at 1000 °C to yield MOF-derived carbons (MCs). The obtained MCs were used to eliminate aromatic hydrocarbons, including polyaromatic hydrocarbons (PAHs; e.g., naphthalene (NAP), anthracene (ATC), and pyrene (PRN)) and benzene (BZ) from water via adsorption. The adsorption results over the MCs were compared with that of pristine MAF-6 and commercial activated carbon (AC). MC obtained after 24 h (MC-24) exhibited a remarkable adsorption efficiency compared to that of the other MCs (obtained after different durations), MAF-6, and AC. For example, MC-24 led to adsorptions of NAP around 17 and 2.5 times those of pristine MAF-6 and AC, respectively. Or, the maximum adsorption capacities (Q0) of MAF-6, AC and MC-24 for NAP were 14, 104 and 237 mg/g, respectively. Moreover, Q0 values of MC-24 for ATC and PRN were also very high of 284 and 307 mg/g, respectively. Based on the properties of PAHs and the hydrophobicity of MC-24, hydrophobic interaction was suggested as the main mechanism for the adsorption of PAHs and BZ. In addition, MC-24 can be recycled by washing with acetone with little loss in performance. Therefore, MC-24 is recommended as a competitive adsorbent for aromatic hydrocarbon removal from water.

AB - Metal azolate framework-6 (MAF-6) was pyrolyzed at 1000 °C to yield MOF-derived carbons (MCs). The obtained MCs were used to eliminate aromatic hydrocarbons, including polyaromatic hydrocarbons (PAHs; e.g., naphthalene (NAP), anthracene (ATC), and pyrene (PRN)) and benzene (BZ) from water via adsorption. The adsorption results over the MCs were compared with that of pristine MAF-6 and commercial activated carbon (AC). MC obtained after 24 h (MC-24) exhibited a remarkable adsorption efficiency compared to that of the other MCs (obtained after different durations), MAF-6, and AC. For example, MC-24 led to adsorptions of NAP around 17 and 2.5 times those of pristine MAF-6 and AC, respectively. Or, the maximum adsorption capacities (Q0) of MAF-6, AC and MC-24 for NAP were 14, 104 and 237 mg/g, respectively. Moreover, Q0 values of MC-24 for ATC and PRN were also very high of 284 and 307 mg/g, respectively. Based on the properties of PAHs and the hydrophobicity of MC-24, hydrophobic interaction was suggested as the main mechanism for the adsorption of PAHs and BZ. In addition, MC-24 can be recycled by washing with acetone with little loss in performance. Therefore, MC-24 is recommended as a competitive adsorbent for aromatic hydrocarbon removal from water.

KW - Adsorption

KW - Aromatic hydrocarbons

KW - Hydrophobicity

KW - MAF-6

KW - MOF-derived carbons

UR - https://www.scopus.com/pages/publications/85036618859

U2 - 10.1016/j.jhazmat.2017.11.057

DO - 10.1016/j.jhazmat.2017.11.057

M3 - Article

C2 - 30216966

AN - SCOPUS:85036618859

SN - 0304-3894

VL - 344

SP - 1069

EP - 1077

JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

ER -

Adsorptive removal of aromatic hydrocarbons from water over metal azolate framework-6-derived carbons

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Keywords

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