Selective removal of methyl orange and Cr anionic contaminants from mixed wastewater by in-situ formation of Zn-Al layered double hydroxides

Zilin Meng; Mi Wu; Yaoyao Yu; Fantao Meng; Aiju Liu; Sridhar Komarneni; Qian Zhang

doi:10.1016/j.clay.2018.04.008

Selective removal of methyl orange and Cr anionic contaminants from mixed wastewater by in-situ formation of Zn-Al layered double hydroxides

Zilin Meng
, Mi Wu
, Yaoyao Yu
, Fantao Meng
, Aiju Liu
, Sridhar Komarneni
, Qian Zhang

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

20 Scopus citations

Abstract

A one-pot method to remove methyl orange (MO, organic contaminant) and CrO₄ ²⁻ (Cr, inorganic contaminant) from waste water was developed by forming Zn-Al layered double hydroxides (ZnAl-LDH). By this process, the efficiency of MO or Cr removal was nearly 100% and reached the theoretical maximum of ZnAl-LDH removal capacity. In addition, the mixed contaminants of MO and Cr in wastewater can be separated from each other by controlling the addition of Zn/Al solution using this one-pot method. The molecular arrangement of the immobilized contaminants in the interlayer of LDH and the selective removal mechanism were analyzed by calculated binding energies obtained from molecular simulation.

Original language	English (US)
Pages (from-to)	1-5
Number of pages	5
Journal	Applied Clay Science
Volume	161
DOIs	https://doi.org/10.1016/j.clay.2018.04.008
State	Published - Sep 1 2018

All Science Journal Classification (ASJC) codes

Water Science and Technology
Geochemistry and Petrology
Geology
Soil Science

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10.1016/j.clay.2018.04.008

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title = "Selective removal of methyl orange and Cr anionic contaminants from mixed wastewater by in-situ formation of Zn-Al layered double hydroxides",

abstract = "A one-pot method to remove methyl orange (MO, organic contaminant) and CrO4 2− (Cr, inorganic contaminant) from waste water was developed by forming Zn-Al layered double hydroxides (ZnAl-LDH). By this process, the efficiency of MO or Cr removal was nearly 100\% and reached the theoretical maximum of ZnAl-LDH removal capacity. In addition, the mixed contaminants of MO and Cr in wastewater can be separated from each other by controlling the addition of Zn/Al solution using this one-pot method. The molecular arrangement of the immobilized contaminants in the interlayer of LDH and the selective removal mechanism were analyzed by calculated binding energies obtained from molecular simulation.",

author = "Zilin Meng and Mi Wu and Yaoyao Yu and Fantao Meng and Aiju Liu and Sridhar Komarneni and Qian Zhang",

note = "Funding Information: This work was supported by the China Scholarship Council, the National Natural Science Fund (41671322) and Shandong Province Natural Science Fund (ZR2015DM010). One of us (SK) was supported by the College of Agricultural Sciences under Station Research Project No. PEN04566. Funding Information: This work was supported by the China Scholarship Council , the National Natural Science Fund ( 41671322 ) and Shandong Province Natural Science Fund ( ZR2015DM010 ). One of us (SK) was supported by the College of Agricultural Sciences under Station Research Project No. PEN04566. Publisher Copyright: {\textcopyright} 2018",

year = "2018",

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doi = "10.1016/j.clay.2018.04.008",

language = "English (US)",

volume = "161",

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journal = "Applied Clay Science",

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TY - JOUR

T1 - Selective removal of methyl orange and Cr anionic contaminants from mixed wastewater by in-situ formation of Zn-Al layered double hydroxides

AU - Meng, Zilin

AU - Wu, Mi

AU - Yu, Yaoyao

AU - Meng, Fantao

AU - Liu, Aiju

AU - Komarneni, Sridhar

AU - Zhang, Qian

N1 - Funding Information: This work was supported by the China Scholarship Council, the National Natural Science Fund (41671322) and Shandong Province Natural Science Fund (ZR2015DM010). One of us (SK) was supported by the College of Agricultural Sciences under Station Research Project No. PEN04566. Funding Information: This work was supported by the China Scholarship Council , the National Natural Science Fund ( 41671322 ) and Shandong Province Natural Science Fund ( ZR2015DM010 ). One of us (SK) was supported by the College of Agricultural Sciences under Station Research Project No. PEN04566. Publisher Copyright: © 2018

PY - 2018/9/1

Y1 - 2018/9/1

N2 - A one-pot method to remove methyl orange (MO, organic contaminant) and CrO4 2− (Cr, inorganic contaminant) from waste water was developed by forming Zn-Al layered double hydroxides (ZnAl-LDH). By this process, the efficiency of MO or Cr removal was nearly 100% and reached the theoretical maximum of ZnAl-LDH removal capacity. In addition, the mixed contaminants of MO and Cr in wastewater can be separated from each other by controlling the addition of Zn/Al solution using this one-pot method. The molecular arrangement of the immobilized contaminants in the interlayer of LDH and the selective removal mechanism were analyzed by calculated binding energies obtained from molecular simulation.

AB - A one-pot method to remove methyl orange (MO, organic contaminant) and CrO4 2− (Cr, inorganic contaminant) from waste water was developed by forming Zn-Al layered double hydroxides (ZnAl-LDH). By this process, the efficiency of MO or Cr removal was nearly 100% and reached the theoretical maximum of ZnAl-LDH removal capacity. In addition, the mixed contaminants of MO and Cr in wastewater can be separated from each other by controlling the addition of Zn/Al solution using this one-pot method. The molecular arrangement of the immobilized contaminants in the interlayer of LDH and the selective removal mechanism were analyzed by calculated binding energies obtained from molecular simulation.

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UR - https://www.scopus.com/pages/publications/85045233945#tab=citedBy

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DO - 10.1016/j.clay.2018.04.008

M3 - Article

AN - SCOPUS:85045233945

SN - 0169-1317

VL - 161

SP - 1

EP - 5

JO - Applied Clay Science

JF - Applied Clay Science

ER -

Selective removal of methyl orange and Cr anionic contaminants from mixed wastewater by in-situ formation of Zn-Al layered double hydroxides

Abstract

All Science Journal Classification (ASJC) codes

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