Fabrication of oxidized graphite supported La                         2                         O                         3                         /ZrO                         2                          nanocomposite for the photoremediation of toxic fast green dye

Gaurav Sharma; Amit Kumar; Shweta Sharma; Sameerah I. Al-Saeedi; Ghadah M. Al-Senani; Ayman Nafady; Tansir Ahamad; Mu Naushad; Florian J. Stadler

doi:10.1016/j.molliq.2018.12.126

Fabrication of oxidized graphite supported La ₂ O ₃ /ZrO ₂ nanocomposite for the photoremediation of toxic fast green dye

Gaurav Sharma^*, Amit Kumar, Shweta Sharma, Sameerah I. Al-Saeedi, Ghadah M. Al-Senani, Ayman Nafady, Tansir Ahamad, Mu Naushad, Florian J. Stadler

^*Corresponding author for this work

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

34 Scopus citations

Abstract

The dyes are one of major pollutants discharged to water bodies without any premeditation. Their undesirable detection in aqueous bodies has created a menace as they tend to disturb the complete aquatic ecosystem by directly hindering the photosynthetic process of aquatic flora. Thus pre and post discharge remediation of these dyes are of immense significance. In the present study, novel OG/La ₂ O ₃ /ZrO ₂ nanocomposite having high photocatalytic ability was prepared by co-precipitation method. Visible photocatalytic ability of the nanocomposite was employed for the degradation of fast green dye as a target pollutant. The OG/La ₂ O ₃ /ZrO ₂ nanocomposite was well characterized using various techniques as FTIR, XRD, SEM, TEM and XPS etc. The nanocomposite also exhibited adsorption capability due to the presence of oxidized graphite (OG) sheets those provided high surface area for the fast green molecules to get adsorb onto them. High degradation efficiency (89%) was obtained within 90 min of visible light irradiation. Effect of pH, photocatalyst amount and light intensity was also studied. Superoxide and hydroxyl radicals were found to be the major reacting species as confirmed by the scavenging studies. Furthermore, OG/La ₂ O ₃ /ZrO ₂ nanocomposite exhibited high reusability interpreting the nanocomposite as a proficient photocatalyst with active utilization for treating industrial waste water.

Original language	English
Pages (from-to)	738-748
Number of pages	11
Journal	Journal of Molecular Liquids
Volume	277
DOIs	https://doi.org/10.1016/j.molliq.2018.12.126
State	Published - 1 Mar 2019
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2018 Elsevier B.V.

Keywords

Fast green dye
Metal-oxides
Oxidized graphite
Photo-degradation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Spectroscopy
Physical and Theoretical Chemistry
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.molliq.2018.12.126

Cite this

Sharma, G., Kumar, A., Sharma, S., Al-Saeedi, S. I., Al-Senani, G. M., Nafady, A., Ahamad, T., Naushad, M., & Stadler, F. J. (2019). Fabrication of oxidized graphite supported La ₂ O ₃ /ZrO ₂ nanocomposite for the photoremediation of toxic fast green dye Journal of Molecular Liquids, 277, 738-748. https://doi.org/10.1016/j.molliq.2018.12.126

Sharma, Gaurav ; Kumar, Amit ; Sharma, Shweta et al. / Fabrication of oxidized graphite supported La ₂ O ₃ /ZrO ₂ nanocomposite for the photoremediation of toxic fast green dye In: Journal of Molecular Liquids. 2019 ; Vol. 277. pp. 738-748.

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title = " Fabrication of oxidized graphite supported La 2 O 3 /ZrO 2 nanocomposite for the photoremediation of toxic fast green dye ",

abstract = " The dyes are one of major pollutants discharged to water bodies without any premeditation. Their undesirable detection in aqueous bodies has created a menace as they tend to disturb the complete aquatic ecosystem by directly hindering the photosynthetic process of aquatic flora. Thus pre and post discharge remediation of these dyes are of immense significance. In the present study, novel OG/La 2 O 3 /ZrO 2 nanocomposite having high photocatalytic ability was prepared by co-precipitation method. Visible photocatalytic ability of the nanocomposite was employed for the degradation of fast green dye as a target pollutant. The OG/La 2 O 3 /ZrO 2 nanocomposite was well characterized using various techniques as FTIR, XRD, SEM, TEM and XPS etc. The nanocomposite also exhibited adsorption capability due to the presence of oxidized graphite (OG) sheets those provided high surface area for the fast green molecules to get adsorb onto them. High degradation efficiency (89\%) was obtained within 90 min of visible light irradiation. Effect of pH, photocatalyst amount and light intensity was also studied. Superoxide and hydroxyl radicals were found to be the major reacting species as confirmed by the scavenging studies. Furthermore, OG/La 2 O 3 /ZrO 2 nanocomposite exhibited high reusability interpreting the nanocomposite as a proficient photocatalyst with active utilization for treating industrial waste water.",

keywords = "Fast green dye, Metal-oxides, Oxidized graphite, Photo-degradation",

author = "Gaurav Sharma and Amit Kumar and Shweta Sharma and Al-Saeedi, \{Sameerah I.\} and Al-Senani, \{Ghadah M.\} and Ayman Nafady and Tansir Ahamad and Mu Naushad and Stadler, \{Florian J.\}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2019",

month = mar,

day = "1",

doi = "10.1016/j.molliq.2018.12.126",

language = "English",

volume = "277",

pages = "738--748",

journal = "Journal of Molecular Liquids",

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Sharma, G, Kumar, A, Sharma, S, Al-Saeedi, SI, Al-Senani, GM, Nafady, A, Ahamad, T, Naushad, M & Stadler, FJ 2019, ' Fabrication of oxidized graphite supported La ₂ O ₃ /ZrO ₂ nanocomposite for the photoremediation of toxic fast green dye ', Journal of Molecular Liquids, vol. 277, pp. 738-748. https://doi.org/10.1016/j.molliq.2018.12.126

Fabrication of oxidized graphite supported La ₂ O ₃ /ZrO ₂ nanocomposite for the photoremediation of toxic fast green dye . / Sharma, Gaurav; Kumar, Amit; Sharma, Shweta et al.
In: Journal of Molecular Liquids, Vol. 277, 01.03.2019, p. 738-748.

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

TY - JOUR

T1 - Fabrication of oxidized graphite supported La 2 O 3 /ZrO 2 nanocomposite for the photoremediation of toxic fast green dye

AU - Sharma, Gaurav

AU - Kumar, Amit

AU - Sharma, Shweta

AU - Al-Saeedi, Sameerah I.

AU - Al-Senani, Ghadah M.

AU - Nafady, Ayman

AU - Ahamad, Tansir

AU - Naushad, Mu

AU - Stadler, Florian J.

PY - 2019/3/1

Y1 - 2019/3/1

N2 - The dyes are one of major pollutants discharged to water bodies without any premeditation. Their undesirable detection in aqueous bodies has created a menace as they tend to disturb the complete aquatic ecosystem by directly hindering the photosynthetic process of aquatic flora. Thus pre and post discharge remediation of these dyes are of immense significance. In the present study, novel OG/La 2 O 3 /ZrO 2 nanocomposite having high photocatalytic ability was prepared by co-precipitation method. Visible photocatalytic ability of the nanocomposite was employed for the degradation of fast green dye as a target pollutant. The OG/La 2 O 3 /ZrO 2 nanocomposite was well characterized using various techniques as FTIR, XRD, SEM, TEM and XPS etc. The nanocomposite also exhibited adsorption capability due to the presence of oxidized graphite (OG) sheets those provided high surface area for the fast green molecules to get adsorb onto them. High degradation efficiency (89%) was obtained within 90 min of visible light irradiation. Effect of pH, photocatalyst amount and light intensity was also studied. Superoxide and hydroxyl radicals were found to be the major reacting species as confirmed by the scavenging studies. Furthermore, OG/La 2 O 3 /ZrO 2 nanocomposite exhibited high reusability interpreting the nanocomposite as a proficient photocatalyst with active utilization for treating industrial waste water.

AB - The dyes are one of major pollutants discharged to water bodies without any premeditation. Their undesirable detection in aqueous bodies has created a menace as they tend to disturb the complete aquatic ecosystem by directly hindering the photosynthetic process of aquatic flora. Thus pre and post discharge remediation of these dyes are of immense significance. In the present study, novel OG/La 2 O 3 /ZrO 2 nanocomposite having high photocatalytic ability was prepared by co-precipitation method. Visible photocatalytic ability of the nanocomposite was employed for the degradation of fast green dye as a target pollutant. The OG/La 2 O 3 /ZrO 2 nanocomposite was well characterized using various techniques as FTIR, XRD, SEM, TEM and XPS etc. The nanocomposite also exhibited adsorption capability due to the presence of oxidized graphite (OG) sheets those provided high surface area for the fast green molecules to get adsorb onto them. High degradation efficiency (89%) was obtained within 90 min of visible light irradiation. Effect of pH, photocatalyst amount and light intensity was also studied. Superoxide and hydroxyl radicals were found to be the major reacting species as confirmed by the scavenging studies. Furthermore, OG/La 2 O 3 /ZrO 2 nanocomposite exhibited high reusability interpreting the nanocomposite as a proficient photocatalyst with active utilization for treating industrial waste water.

KW - Fast green dye

KW - Metal-oxides

KW - Oxidized graphite

KW - Photo-degradation

UR - https://www.scopus.com/pages/publications/85059618097

U2 - 10.1016/j.molliq.2018.12.126

DO - 10.1016/j.molliq.2018.12.126

M3 - Article

AN - SCOPUS:85059618097

SN - 0167-7322

VL - 277

SP - 738

EP - 748

JO - Journal of Molecular Liquids

JF - Journal of Molecular Liquids

ER -

Sharma G, Kumar A, Sharma S, Al-Saeedi SI, Al-Senani GM, Nafady A et al. Fabrication of oxidized graphite supported La ₂ O ₃ /ZrO ₂ nanocomposite for the photoremediation of toxic fast green dye Journal of Molecular Liquids. 2019 Mar 1;277:738-748. doi: 10.1016/j.molliq.2018.12.126

Fabrication of oxidized graphite supported La 2 O 3 /ZrO 2 nanocomposite for the photoremediation of toxic fast green dye