Photocatalytic removal of nitrate from water using activated carbon-loaded with bimetallic Pd-Ag nanoparticles under natural solar radiation

Ahmed M. Soliman; Dalal Alshamsi; Ahmed A. Murad; Ala Aldahan; Ismail M. Ali; Ahmad I. Ayesh; Ismail A. Elhaty

doi:10.1016/j.jphotochem.2022.114175

Photocatalytic removal of nitrate from water using activated carbon-loaded with bimetallic Pd-Ag nanoparticles under natural solar radiation

Ahmed M. Soliman, Dalal Alshamsi, Ahmed A. Murad, Ala Aldahan, Ismail M. Ali, Ahmad I. Ayesh, Ismail A. Elhaty

Department of Geoscience

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

4 Citations (Scopus)

Abstract

The increase of nitrate contamination of surface and groundwater has raised a concern, because of its impact on both environment and human health. In this study, photocatalysis for nitrate treatment in water was conducted using activated carbon prepared from date palm stone decorated with single and bimetals nanoparticles using solar radiation. The prepared catalyst was characterized by XPS, SEM, EDX, TGA, and surface area analyzer instruments. The photocatalytic effect of the prepared catalyst was studied using nitrate solution and acid scavengers with different concentrations. Significant photocatalytic activity was observed for activated carbon when modified with Pd–Ag. The obtained results showed that the conversion of nitrate takes place mainly through nitrogen gas (N₂) rather than nitrite (NO₂^–) or ammonium (NH₄⁺). Formic acid as a hole scavenger with 0.05 M shows the maximum conversion for nitrate. The prepared photocatalyst shows stability for five cycles of nitrate ion reduction. Moreover, the results showed that the prepared catalyst could be applied for the removal of nitrate from groundwater and river water samples.

Original language	English
Article number	114175
Journal	Journal of Photochemistry and Photobiology A: Chemistry
Volume	433
DOIs	https://doi.org/10.1016/j.jphotochem.2022.114175
Publication status	Published - Dec 1 2022

Keywords

Activated carbon
Ag-Pd nanoparticles
Nitrate
Photocatalytic
Solar radiation

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Physics and Astronomy(all)

UN SDGs

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

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10.1016/j.jphotochem.2022.114175

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title = "Photocatalytic removal of nitrate from water using activated carbon-loaded with bimetallic Pd-Ag nanoparticles under natural solar radiation",

abstract = "The increase of nitrate contamination of surface and groundwater has raised a concern, because of its impact on both environment and human health. In this study, photocatalysis for nitrate treatment in water was conducted using activated carbon prepared from date palm stone decorated with single and bimetals nanoparticles using solar radiation. The prepared catalyst was characterized by XPS, SEM, EDX, TGA, and surface area analyzer instruments. The photocatalytic effect of the prepared catalyst was studied using nitrate solution and acid scavengers with different concentrations. Significant photocatalytic activity was observed for activated carbon when modified with Pd–Ag. The obtained results showed that the conversion of nitrate takes place mainly through nitrogen gas (N2) rather than nitrite (NO2–) or ammonium (NH4+). Formic acid as a hole scavenger with 0.05 M shows the maximum conversion for nitrate. The prepared photocatalyst shows stability for five cycles of nitrate ion reduction. Moreover, the results showed that the prepared catalyst could be applied for the removal of nitrate from groundwater and river water samples.",

keywords = "Activated carbon, Ag-Pd nanoparticles, Nitrate, Photocatalytic, Solar radiation",

author = "Soliman, {Ahmed M.} and Dalal Alshamsi and Murad, {Ahmed A.} and Ala Aldahan and Ali, {Ismail M.} and Ayesh, {Ahmad I.} and Elhaty, {Ismail A.}",

note = "Funding Information: The authors would like to acknowledge the Egyption Atomic Energy Authority for using some laboratory facilities. Open Access funding provided by the Qatar National Library. The authors also would like to acknowledge the financial support (Research Fund 13S153) of United Arab Emirates University. The authors also would like to thank Dr. Ahmed Alzamly for his help. Publisher Copyright: {\textcopyright} 2022 The Authors",

year = "2022",

month = dec,

day = "1",

doi = "10.1016/j.jphotochem.2022.114175",

language = "English",

volume = "433",

journal = "Journal of Photochemistry and Photobiology A: Chemistry",

issn = "1010-6030",

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TY - JOUR

T1 - Photocatalytic removal of nitrate from water using activated carbon-loaded with bimetallic Pd-Ag nanoparticles under natural solar radiation

AU - Soliman, Ahmed M.

AU - Alshamsi, Dalal

AU - Murad, Ahmed A.

AU - Aldahan, Ala

AU - Ali, Ismail M.

AU - Ayesh, Ahmad I.

AU - Elhaty, Ismail A.

N1 - Funding Information: The authors would like to acknowledge the Egyption Atomic Energy Authority for using some laboratory facilities. Open Access funding provided by the Qatar National Library. The authors also would like to acknowledge the financial support (Research Fund 13S153) of United Arab Emirates University. The authors also would like to thank Dr. Ahmed Alzamly for his help. Publisher Copyright: © 2022 The Authors

PY - 2022/12/1

Y1 - 2022/12/1

N2 - The increase of nitrate contamination of surface and groundwater has raised a concern, because of its impact on both environment and human health. In this study, photocatalysis for nitrate treatment in water was conducted using activated carbon prepared from date palm stone decorated with single and bimetals nanoparticles using solar radiation. The prepared catalyst was characterized by XPS, SEM, EDX, TGA, and surface area analyzer instruments. The photocatalytic effect of the prepared catalyst was studied using nitrate solution and acid scavengers with different concentrations. Significant photocatalytic activity was observed for activated carbon when modified with Pd–Ag. The obtained results showed that the conversion of nitrate takes place mainly through nitrogen gas (N2) rather than nitrite (NO2–) or ammonium (NH4+). Formic acid as a hole scavenger with 0.05 M shows the maximum conversion for nitrate. The prepared photocatalyst shows stability for five cycles of nitrate ion reduction. Moreover, the results showed that the prepared catalyst could be applied for the removal of nitrate from groundwater and river water samples.

AB - The increase of nitrate contamination of surface and groundwater has raised a concern, because of its impact on both environment and human health. In this study, photocatalysis for nitrate treatment in water was conducted using activated carbon prepared from date palm stone decorated with single and bimetals nanoparticles using solar radiation. The prepared catalyst was characterized by XPS, SEM, EDX, TGA, and surface area analyzer instruments. The photocatalytic effect of the prepared catalyst was studied using nitrate solution and acid scavengers with different concentrations. Significant photocatalytic activity was observed for activated carbon when modified with Pd–Ag. The obtained results showed that the conversion of nitrate takes place mainly through nitrogen gas (N2) rather than nitrite (NO2–) or ammonium (NH4+). Formic acid as a hole scavenger with 0.05 M shows the maximum conversion for nitrate. The prepared photocatalyst shows stability for five cycles of nitrate ion reduction. Moreover, the results showed that the prepared catalyst could be applied for the removal of nitrate from groundwater and river water samples.

KW - Activated carbon

KW - Ag-Pd nanoparticles

KW - Nitrate

KW - Photocatalytic

KW - Solar radiation

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Photocatalytic removal of nitrate from water using activated carbon-loaded with bimetallic Pd-Ag nanoparticles under natural solar radiation

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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