Highly efficient removal of methylene blue from aqueous solution by a novel fishing-net effect of manganese oxide nano-sheets

Liang Peng; Bin Liu; Qingru Zeng; Ji Dong Gu; Ming Lei; Jihai Shao; Liyuan Chai

doi:10.1007/s10098-016-1214-z

Highly efficient removal of methylene blue from aqueous solution by a novel fishing-net effect of manganese oxide nano-sheets

Liang Peng^*, Bin Liu, Qingru Zeng, Ji Dong Gu, Ming Lei, Jihai Shao, Liyuan Chai

^*Corresponding author for this work

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

15 Scopus citations

Abstract

Manganese (IV) oxide (MnO₂) nano-sheets were synthesized using tetramethylamine, H₂O₂, and MnCl₂·4H₂O and used in suspension for removal of methylene blue (MB). Up to 95 % removal was achieved for MB concentrations less than 500 mg/L. The adsorption data fitted better with the Freundlich isotherm model than the Langmuir model, indicating a heterogeneous adsorption of MB on MnO₂nano-sheets. The maximum adsorption capacity of MnO₂nano-sheets was approximately 4300 mg/g, which is the highest yet reported. Suspensions of MnO₂nano-sheets aggregated as precipitates after adsorption of MB. Using a suite of analyses, including X-ray diffraction and X-ray photoelectron spectroscopy, the high adsorption capacity was mainly attributed to ion exchange, coordination, and a fishing-net effect. The term, ‘fishing-net effect,’ is proposed here for the first time, to explain the extremely high adsorption capacity of nano-sheets, which increased with increasing ionic strength and sorbate concentration. Our results demonstrate that dispersive MnO₂nano-sheets have a potential application in adsorption of organics from strongly basic solutions with high salinity.

Original language	English
Pages (from-to)	269-277
Number of pages	9
Journal	Clean Technologies and Environmental Policy
Volume	19
Issue number	1
DOIs	https://doi.org/10.1007/s10098-016-1214-z
State	Published - Jan 2017
Externally published	Yes

Keywords

Adsorption
Manganese oxide
Methylene blue
Nano-sheet

Access to Document

10.1007/s10098-016-1214-z

Cite this

@article{eb0bc6f1efae4a678c6b4e1f24f856e3,

title = "Highly efficient removal of methylene blue from aqueous solution by a novel fishing-net effect of manganese oxide nano-sheets",

abstract = "Manganese (IV) oxide (MnO2) nano-sheets were synthesized using tetramethylamine, H2O2, and MnCl2·4H2O and used in suspension for removal of methylene blue (MB). Up to 95 % removal was achieved for MB concentrations less than 500 mg/L. The adsorption data fitted better with the Freundlich isotherm model than the Langmuir model, indicating a heterogeneous adsorption of MB on MnO2nano-sheets. The maximum adsorption capacity of MnO2nano-sheets was approximately 4300 mg/g, which is the highest yet reported. Suspensions of MnO2nano-sheets aggregated as precipitates after adsorption of MB. Using a suite of analyses, including X-ray diffraction and X-ray photoelectron spectroscopy, the high adsorption capacity was mainly attributed to ion exchange, coordination, and a fishing-net effect. The term, {\textquoteleft}fishing-net effect,{\textquoteright} is proposed here for the first time, to explain the extremely high adsorption capacity of nano-sheets, which increased with increasing ionic strength and sorbate concentration. Our results demonstrate that dispersive MnO2nano-sheets have a potential application in adsorption of organics from strongly basic solutions with high salinity.",

keywords = "Adsorption, Manganese oxide, Methylene blue, Nano-sheet",

author = "Liang Peng and Bin Liu and Qingru Zeng and Gu, {Ji Dong} and Ming Lei and Jihai Shao and Liyuan Chai",

note = "Publisher Copyright: {\textcopyright} 2016, Springer-Verlag Berlin Heidelberg.",

year = "2017",

month = jan,

doi = "10.1007/s10098-016-1214-z",

language = "英语",

volume = "19",

pages = "269--277",

journal = "Clean Technologies and Environmental Policy",

issn = "1618-954X",

publisher = "Springer Verlag",

number = "1",

}

TY - JOUR

T1 - Highly efficient removal of methylene blue from aqueous solution by a novel fishing-net effect of manganese oxide nano-sheets

AU - Peng, Liang

AU - Liu, Bin

AU - Zeng, Qingru

AU - Gu, Ji Dong

AU - Lei, Ming

AU - Shao, Jihai

AU - Chai, Liyuan

PY - 2017/1

Y1 - 2017/1

N2 - Manganese (IV) oxide (MnO2) nano-sheets were synthesized using tetramethylamine, H2O2, and MnCl2·4H2O and used in suspension for removal of methylene blue (MB). Up to 95 % removal was achieved for MB concentrations less than 500 mg/L. The adsorption data fitted better with the Freundlich isotherm model than the Langmuir model, indicating a heterogeneous adsorption of MB on MnO2nano-sheets. The maximum adsorption capacity of MnO2nano-sheets was approximately 4300 mg/g, which is the highest yet reported. Suspensions of MnO2nano-sheets aggregated as precipitates after adsorption of MB. Using a suite of analyses, including X-ray diffraction and X-ray photoelectron spectroscopy, the high adsorption capacity was mainly attributed to ion exchange, coordination, and a fishing-net effect. The term, ‘fishing-net effect,’ is proposed here for the first time, to explain the extremely high adsorption capacity of nano-sheets, which increased with increasing ionic strength and sorbate concentration. Our results demonstrate that dispersive MnO2nano-sheets have a potential application in adsorption of organics from strongly basic solutions with high salinity.

AB - Manganese (IV) oxide (MnO2) nano-sheets were synthesized using tetramethylamine, H2O2, and MnCl2·4H2O and used in suspension for removal of methylene blue (MB). Up to 95 % removal was achieved for MB concentrations less than 500 mg/L. The adsorption data fitted better with the Freundlich isotherm model than the Langmuir model, indicating a heterogeneous adsorption of MB on MnO2nano-sheets. The maximum adsorption capacity of MnO2nano-sheets was approximately 4300 mg/g, which is the highest yet reported. Suspensions of MnO2nano-sheets aggregated as precipitates after adsorption of MB. Using a suite of analyses, including X-ray diffraction and X-ray photoelectron spectroscopy, the high adsorption capacity was mainly attributed to ion exchange, coordination, and a fishing-net effect. The term, ‘fishing-net effect,’ is proposed here for the first time, to explain the extremely high adsorption capacity of nano-sheets, which increased with increasing ionic strength and sorbate concentration. Our results demonstrate that dispersive MnO2nano-sheets have a potential application in adsorption of organics from strongly basic solutions with high salinity.

KW - Adsorption

KW - Manganese oxide

KW - Methylene blue

KW - Nano-sheet

UR - http://www.scopus.com/inward/record.url?scp=84973607446&partnerID=8YFLogxK

U2 - 10.1007/s10098-016-1214-z

DO - 10.1007/s10098-016-1214-z

M3 - 文章

AN - SCOPUS:84973607446

SN - 1618-954X

VL - 19

SP - 269

EP - 277

JO - Clean Technologies and Environmental Policy

JF - Clean Technologies and Environmental Policy

IS - 1

ER -

Highly efficient removal of methylene blue from aqueous solution by a novel fishing-net effect of manganese oxide nano-sheets

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this