Unleashing the Power of Graphene-Based Nanomaterials for Chromium(VI) Ion Elimination from Water

Keloth Paduvilan Jibin; Silpa Augustine; Prajitha Velayudhan; Jesiya Susan George; Sisanth Krishnageham Sidharthan; Sylas Variyattel Poulose; Sabu Thomas

doi:10.3390/cryst13071047

Unleashing the Power of Graphene-Based Nanomaterials for Chromium(VI) Ion Elimination from Water

Keloth Paduvilan Jibin
, Silpa Augustine
, Prajitha Velayudhan
, Jesiya Susan George
, Sisanth Krishnageham Sidharthan
, Sylas Variyattel Poulose
, Sabu Thomas

Mahatma Gandhi University, Kottayam

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

14 Citations (Scopus)

Abstract

Graphene-oxide-based nanomaterials have gained attention in recent years in the field of heavy metal removal. In this work, graphene oxide (GO) and graphene-oxide-coated silica nanoparticles (GO/SiO₂) were synthesized for the efficient removal of Cr(VI) ions from water. Synthesized nanosorbents were characterized by FTIR, Raman spectroscopy, and Transmission Electron Microscopy (TEM). The effects of the pH and the concentration of Cr(VI) ions in adsorption, using GO and GO/SiO₂, was studied using the batch process. The results of the study indicated that the maximum removal percentage was shown at pH 3 for both adsorbents. Comparatively, GO/SiO₂ showed a higher removal percentage (92.28%) than GO (86.15%) for Cr(VI) at a concentration of 50 ppm. The results validate that the removal of Cr(VI) ions is highly concentration-dependent and pH-dependent. This study shows that GO and GO/SiO₂ are efficient adsorbents and that GO/SiO₂ has great potential over GO for the removal of Cr(VI) ions from water.

Original language	English
Article number	1047
Journal	Crystals
Volume	13
Issue number	7
DOIs	https://doi.org/10.3390/cryst13071047
Publication status	Published - Jul 2023
Externally published	Yes

Keywords

ICP-MS
adsorption
graphene oxide (GO)
graphene-oxide-coated silica nanoparticles (GO/SiO)
heavy metals

ASJC Scopus subject areas

General Chemical Engineering
General Materials Science
Condensed Matter Physics
Inorganic Chemistry

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10.3390/cryst13071047

Cite this

@article{8162bf1a63104dd89ebcb54b51810c3c,

title = "Unleashing the Power of Graphene-Based Nanomaterials for Chromium(VI) Ion Elimination from Water",

abstract = "Graphene-oxide-based nanomaterials have gained attention in recent years in the field of heavy metal removal. In this work, graphene oxide (GO) and graphene-oxide-coated silica nanoparticles (GO/SiO2) were synthesized for the efficient removal of Cr(VI) ions from water. Synthesized nanosorbents were characterized by FTIR, Raman spectroscopy, and Transmission Electron Microscopy (TEM). The effects of the pH and the concentration of Cr(VI) ions in adsorption, using GO and GO/SiO2, was studied using the batch process. The results of the study indicated that the maximum removal percentage was shown at pH 3 for both adsorbents. Comparatively, GO/SiO2 showed a higher removal percentage (92.28\%) than GO (86.15\%) for Cr(VI) at a concentration of 50 ppm. The results validate that the removal of Cr(VI) ions is highly concentration-dependent and pH-dependent. This study shows that GO and GO/SiO2 are efficient adsorbents and that GO/SiO2 has great potential over GO for the removal of Cr(VI) ions from water.",

keywords = "ICP-MS, adsorption, graphene oxide (GO), graphene-oxide-coated silica nanoparticles (GO/SiO), heavy metals",

author = "Jibin, \{Keloth Paduvilan\} and Silpa Augustine and Prajitha Velayudhan and George, \{Jesiya Susan\} and \{Krishnageham Sidharthan\}, Sisanth and Poulose, \{Sylas Variyattel\} and Sabu Thomas",

note = "Publisher Copyright: {\textcopyright} 2023 by the authors.",

year = "2023",

month = jul,

doi = "10.3390/cryst13071047",

language = "English",

volume = "13",

journal = "Crystals",

issn = "2073-4352",

publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

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T1 - Unleashing the Power of Graphene-Based Nanomaterials for Chromium(VI) Ion Elimination from Water

AU - Jibin, Keloth Paduvilan

AU - Augustine, Silpa

AU - Velayudhan, Prajitha

AU - George, Jesiya Susan

AU - Krishnageham Sidharthan, Sisanth

AU - Poulose, Sylas Variyattel

AU - Thomas, Sabu

PY - 2023/7

Y1 - 2023/7

N2 - Graphene-oxide-based nanomaterials have gained attention in recent years in the field of heavy metal removal. In this work, graphene oxide (GO) and graphene-oxide-coated silica nanoparticles (GO/SiO2) were synthesized for the efficient removal of Cr(VI) ions from water. Synthesized nanosorbents were characterized by FTIR, Raman spectroscopy, and Transmission Electron Microscopy (TEM). The effects of the pH and the concentration of Cr(VI) ions in adsorption, using GO and GO/SiO2, was studied using the batch process. The results of the study indicated that the maximum removal percentage was shown at pH 3 for both adsorbents. Comparatively, GO/SiO2 showed a higher removal percentage (92.28%) than GO (86.15%) for Cr(VI) at a concentration of 50 ppm. The results validate that the removal of Cr(VI) ions is highly concentration-dependent and pH-dependent. This study shows that GO and GO/SiO2 are efficient adsorbents and that GO/SiO2 has great potential over GO for the removal of Cr(VI) ions from water.

AB - Graphene-oxide-based nanomaterials have gained attention in recent years in the field of heavy metal removal. In this work, graphene oxide (GO) and graphene-oxide-coated silica nanoparticles (GO/SiO2) were synthesized for the efficient removal of Cr(VI) ions from water. Synthesized nanosorbents were characterized by FTIR, Raman spectroscopy, and Transmission Electron Microscopy (TEM). The effects of the pH and the concentration of Cr(VI) ions in adsorption, using GO and GO/SiO2, was studied using the batch process. The results of the study indicated that the maximum removal percentage was shown at pH 3 for both adsorbents. Comparatively, GO/SiO2 showed a higher removal percentage (92.28%) than GO (86.15%) for Cr(VI) at a concentration of 50 ppm. The results validate that the removal of Cr(VI) ions is highly concentration-dependent and pH-dependent. This study shows that GO and GO/SiO2 are efficient adsorbents and that GO/SiO2 has great potential over GO for the removal of Cr(VI) ions from water.

KW - ICP-MS

KW - adsorption

KW - graphene oxide (GO)

KW - graphene-oxide-coated silica nanoparticles (GO/SiO)

KW - heavy metals

UR - https://www.scopus.com/pages/publications/85166189573

U2 - 10.3390/cryst13071047

DO - 10.3390/cryst13071047

M3 - Article

AN - SCOPUS:85166189573

SN - 2073-4352

VL - 13

JO - Crystals

JF - Crystals

IS - 7

M1 - 1047

ER -

Unleashing the Power of Graphene-Based Nanomaterials for Chromium(VI) Ion Elimination from Water

Abstract

Keywords

ASJC Scopus subject areas

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