Nano tin ferrous oxide decorated graphene oxide sheets for efficient arsenic (III) removal

Maya Sharma; Shashank Ramakrishnan; Sanjay Remanan; Giridhar Madras; Suryasarathi Bose

doi:10.1016/j.nanoso.2017.12.007

Nano tin ferrous oxide decorated graphene oxide sheets for efficient arsenic (III) removal

Maya Sharma
, Shashank Ramakrishnan
, Sanjay Remanan
, Giridhar Madras
, Suryasarathi Bose^*

^*Corresponding author for this work

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

30 Scopus citations

Abstract

Nano-sized tin ferrous oxide (Sn_0.95Fe_0.05O₂ _−δ) decorated graphene oxide (GO) based adsorbents were synthesized by solution combustion technique. The synthesized adsorbents were thoroughly characterized by SEM, XRD, XPS, TGA, and BET with respect to their structure, morphology and specific surface area. A four-fold increase in the sorption capacity was realized in Sn_0.95Fe_0.05O₂ _−δ decorated GO sheets compared to individual GO and nano tin ferrous oxide. The adsorption kinetics followed the pseudo-second-order model and the isotherm followed Langmuir equilibrium. The equilibrium isotherm showed that Sn_0.95Fe_0.05O₂ _−δ decorated GO nanoparticles had higher sorption capacity (q_m=105 mg g⁻¹) compared to both Sn_0.95Fe_0.05O₂ _−δ (q_m=27 mg g⁻¹) and GO (q_m=23 mg g⁻¹) indicating excellent synergism. The continuous adsorption of As (III) in a column was also conducted to investigate its feasibility for large-scale operations.

Original language	English
Pages (from-to)	82-92
Number of pages	11
Journal	Nano-Structures and Nano-Objects
Volume	13
DOIs	https://doi.org/10.1016/j.nanoso.2017.12.007
State	Published - Feb 2018
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2017

Keywords

Adsorption
Arsenic
Remediation
Solution combustion

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
General Materials Science
Condensed Matter Physics
Physical and Theoretical Chemistry

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10.1016/j.nanoso.2017.12.007

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title = "Nano tin ferrous oxide decorated graphene oxide sheets for efficient arsenic (III) removal",

abstract = "Nano-sized tin ferrous oxide (Sn0.95Fe0.05O2 −δ) decorated graphene oxide (GO) based adsorbents were synthesized by solution combustion technique. The synthesized adsorbents were thoroughly characterized by SEM, XRD, XPS, TGA, and BET with respect to their structure, morphology and specific surface area. A four-fold increase in the sorption capacity was realized in Sn0.95Fe0.05O2 −δ decorated GO sheets compared to individual GO and nano tin ferrous oxide. The adsorption kinetics followed the pseudo-second-order model and the isotherm followed Langmuir equilibrium. The equilibrium isotherm showed that Sn0.95Fe0.05O2 −δ decorated GO nanoparticles had higher sorption capacity (qm=105 mg g−1) compared to both Sn0.95Fe0.05O2 −δ (qm=27 mg g−1) and GO (qm=23 mg g−1) indicating excellent synergism. The continuous adsorption of As (III) in a column was also conducted to investigate its feasibility for large-scale operations.",

keywords = "Adsorption, Arsenic, Remediation, Solution combustion",

author = "Maya Sharma and Shashank Ramakrishnan and Sanjay Remanan and Giridhar Madras and Suryasarathi Bose",

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year = "2018",

month = feb,

doi = "10.1016/j.nanoso.2017.12.007",

language = "English",

volume = "13",

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T1 - Nano tin ferrous oxide decorated graphene oxide sheets for efficient arsenic (III) removal

AU - Sharma, Maya

AU - Ramakrishnan, Shashank

AU - Remanan, Sanjay

AU - Madras, Giridhar

AU - Bose, Suryasarathi

PY - 2018/2

Y1 - 2018/2

N2 - Nano-sized tin ferrous oxide (Sn0.95Fe0.05O2 −δ) decorated graphene oxide (GO) based adsorbents were synthesized by solution combustion technique. The synthesized adsorbents were thoroughly characterized by SEM, XRD, XPS, TGA, and BET with respect to their structure, morphology and specific surface area. A four-fold increase in the sorption capacity was realized in Sn0.95Fe0.05O2 −δ decorated GO sheets compared to individual GO and nano tin ferrous oxide. The adsorption kinetics followed the pseudo-second-order model and the isotherm followed Langmuir equilibrium. The equilibrium isotherm showed that Sn0.95Fe0.05O2 −δ decorated GO nanoparticles had higher sorption capacity (qm=105 mg g−1) compared to both Sn0.95Fe0.05O2 −δ (qm=27 mg g−1) and GO (qm=23 mg g−1) indicating excellent synergism. The continuous adsorption of As (III) in a column was also conducted to investigate its feasibility for large-scale operations.

AB - Nano-sized tin ferrous oxide (Sn0.95Fe0.05O2 −δ) decorated graphene oxide (GO) based adsorbents were synthesized by solution combustion technique. The synthesized adsorbents were thoroughly characterized by SEM, XRD, XPS, TGA, and BET with respect to their structure, morphology and specific surface area. A four-fold increase in the sorption capacity was realized in Sn0.95Fe0.05O2 −δ decorated GO sheets compared to individual GO and nano tin ferrous oxide. The adsorption kinetics followed the pseudo-second-order model and the isotherm followed Langmuir equilibrium. The equilibrium isotherm showed that Sn0.95Fe0.05O2 −δ decorated GO nanoparticles had higher sorption capacity (qm=105 mg g−1) compared to both Sn0.95Fe0.05O2 −δ (qm=27 mg g−1) and GO (qm=23 mg g−1) indicating excellent synergism. The continuous adsorption of As (III) in a column was also conducted to investigate its feasibility for large-scale operations.

KW - Adsorption

KW - Arsenic

KW - Remediation

KW - Solution combustion

UR - https://www.scopus.com/pages/publications/85039787105

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DO - 10.1016/j.nanoso.2017.12.007

M3 - Article

AN - SCOPUS:85039787105

SN - 2352-507X

VL - 13

SP - 82

EP - 92

JO - Nano-Structures and Nano-Objects

JF - Nano-Structures and Nano-Objects

ER -

Nano tin ferrous oxide decorated graphene oxide sheets for efficient arsenic (III) removal

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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