A hierarchical Ca/TiO2/NH2-MIL-125 nanocomposite photocatalyst for solar visible light induced photodegradation of organic dye pollutants in water

Najmeh Ahmadpour; Mohammad Hossein Sayadi; Shahin Homaeigohar

doi:10.1039/D0RA05192F

A hierarchical Ca/TiO2/NH2-MIL-125 nanocomposite photocatalyst for solar visible light induced photodegradation of organic dye pollutants in water

Najmeh Ahmadpour, Mohammad Hossein Sayadi, Shahin Homaeigohar

Science and Engineering Office

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Abstract

In this study, for the first time, the Ca/TiO2/NH2-MIL-125 nanocomposite photocatalyst was synthesized for the purpose of photodegradation of Methyl Orange (MO) and Rhodamine B (RhB) dyes under visible light irradiation. The structural and chemical properties of the nanocomposite photocatalyst were characterized through FTIR, XRD, TGA, PL, XPS, ICP-OES and UV-DRS. For the photodegradation efficiency analysis, the effect of pH (3, 5, 7, 9, and 11), photocatalyst dosage (0.1, 0.2, 0.4, 0.6, and 0.8 g L1 ), dye concentration (1–40 mg L1 ), and contact time (10–120 min) was precisely evaluated. The largest photodegradation efficiency for RhB and MO dye models was 82.87% and 86.22%, respectively, that was obtained under optimal conditions in terms of pH and photocatalyst dosage and for Ca(30%)/ TiO2/NH2-MIL-125. The photodegradation process of the dyes complied well with the first-order kinetic model. Moreover, the nanocomposite photocatalyst showed consistent photodegradation efficiency and after 6 successive cycles with fresh dye solutions, it could still perform comparably well. Taken together, Ca/TiO2/NH2-MIL-125 photocatalyst is able to show a high photodegradation efficiency for dye pollutants and optimum stability and reusability.

Original language	English
Pages (from-to)	29808-29820
Number of pages	13
Journal	RSC Advances
Volume	10
Issue number	50
Early online date	12 Aug 2020
DOIs	https://doi.org/10.1039/D0RA05192F
Publication status	Published - 2020

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

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10.1039/D0RA05192FLicence: CC BY-NC

Final Published VersionFinal published version, 1.39 MBLicence: CC BY-NC

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@article{cbc3ef9898754870921ac4c0c44a3822,

title = "A hierarchical Ca/TiO2/NH2-MIL-125 nanocomposite photocatalyst for solar visible light induced photodegradation of organic dye pollutants in water",

abstract = "In this study, for the first time, the Ca/TiO2/NH2-MIL-125 nanocomposite photocatalyst was synthesized for the purpose of photodegradation of Methyl Orange (MO) and Rhodamine B (RhB) dyes under visible light irradiation. The structural and chemical properties of the nanocomposite photocatalyst were characterized through FTIR, XRD, TGA, PL, XPS, ICP-OES and UV-DRS. For the photodegradation efficiency analysis, the effect of pH (3, 5, 7, 9, and 11), photocatalyst dosage (0.1, 0.2, 0.4, 0.6, and 0.8 g L1 ), dye concentration (1–40 mg L1 ), and contact time (10–120 min) was precisely evaluated. The largest photodegradation efficiency for RhB and MO dye models was 82.87% and 86.22%, respectively, that was obtained under optimal conditions in terms of pH and photocatalyst dosage and for Ca(30%)/ TiO2/NH2-MIL-125. The photodegradation process of the dyes complied well with the first-order kinetic model. Moreover, the nanocomposite photocatalyst showed consistent photodegradation efficiency and after 6 successive cycles with fresh dye solutions, it could still perform comparably well. Taken together, Ca/TiO2/NH2-MIL-125 photocatalyst is able to show a high photodegradation efficiency for dye pollutants and optimum stability and reusability.",

author = "Najmeh Ahmadpour and Sayadi, {Mohammad Hossein} and Shahin Homaeigohar",

note = "Funding Information: N. A. and M. H. S. gratefully acknowledge the Research Council of University of Birjand (Grant Number: 9945/1399) for the financial support. Also they appreciate the assistance of laboratories in the Faculty of Natural Resources and Environment, University of Birjand, during the course of the experiments and analysis. Publisher Copyright: {\textcopyright} The Royal Society of Chemistry. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",

year = "2020",

doi = "10.1039/D0RA05192F",

language = "English",

volume = "10",

pages = "29808--29820",

journal = "RSC Advances",

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publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - A hierarchical Ca/TiO2/NH2-MIL-125 nanocomposite photocatalyst for solar visible light induced photodegradation of organic dye pollutants in water

AU - Ahmadpour, Najmeh

AU - Sayadi, Mohammad Hossein

AU - Homaeigohar, Shahin

N1 - Funding Information: N. A. and M. H. S. gratefully acknowledge the Research Council of University of Birjand (Grant Number: 9945/1399) for the financial support. Also they appreciate the assistance of laboratories in the Faculty of Natural Resources and Environment, University of Birjand, during the course of the experiments and analysis. Publisher Copyright: © The Royal Society of Chemistry. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2020

Y1 - 2020

N2 - In this study, for the first time, the Ca/TiO2/NH2-MIL-125 nanocomposite photocatalyst was synthesized for the purpose of photodegradation of Methyl Orange (MO) and Rhodamine B (RhB) dyes under visible light irradiation. The structural and chemical properties of the nanocomposite photocatalyst were characterized through FTIR, XRD, TGA, PL, XPS, ICP-OES and UV-DRS. For the photodegradation efficiency analysis, the effect of pH (3, 5, 7, 9, and 11), photocatalyst dosage (0.1, 0.2, 0.4, 0.6, and 0.8 g L1 ), dye concentration (1–40 mg L1 ), and contact time (10–120 min) was precisely evaluated. The largest photodegradation efficiency for RhB and MO dye models was 82.87% and 86.22%, respectively, that was obtained under optimal conditions in terms of pH and photocatalyst dosage and for Ca(30%)/ TiO2/NH2-MIL-125. The photodegradation process of the dyes complied well with the first-order kinetic model. Moreover, the nanocomposite photocatalyst showed consistent photodegradation efficiency and after 6 successive cycles with fresh dye solutions, it could still perform comparably well. Taken together, Ca/TiO2/NH2-MIL-125 photocatalyst is able to show a high photodegradation efficiency for dye pollutants and optimum stability and reusability.

AB - In this study, for the first time, the Ca/TiO2/NH2-MIL-125 nanocomposite photocatalyst was synthesized for the purpose of photodegradation of Methyl Orange (MO) and Rhodamine B (RhB) dyes under visible light irradiation. The structural and chemical properties of the nanocomposite photocatalyst were characterized through FTIR, XRD, TGA, PL, XPS, ICP-OES and UV-DRS. For the photodegradation efficiency analysis, the effect of pH (3, 5, 7, 9, and 11), photocatalyst dosage (0.1, 0.2, 0.4, 0.6, and 0.8 g L1 ), dye concentration (1–40 mg L1 ), and contact time (10–120 min) was precisely evaluated. The largest photodegradation efficiency for RhB and MO dye models was 82.87% and 86.22%, respectively, that was obtained under optimal conditions in terms of pH and photocatalyst dosage and for Ca(30%)/ TiO2/NH2-MIL-125. The photodegradation process of the dyes complied well with the first-order kinetic model. Moreover, the nanocomposite photocatalyst showed consistent photodegradation efficiency and after 6 successive cycles with fresh dye solutions, it could still perform comparably well. Taken together, Ca/TiO2/NH2-MIL-125 photocatalyst is able to show a high photodegradation efficiency for dye pollutants and optimum stability and reusability.

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U2 - 10.1039/D0RA05192F

DO - 10.1039/D0RA05192F

M3 - Article

SN - 2046-2069

VL - 10

SP - 29808

EP - 29820

JO - RSC Advances

JF - RSC Advances

IS - 50

ER -

A hierarchical Ca/TiO2/NH2-MIL-125 nanocomposite photocatalyst for solar visible light induced photodegradation of organic dye pollutants in water

Abstract

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Correction: A hierarchical Ca/TiO₂/NH₂-MIL-125 nanocomposite photocatalyst for solar visible light induced photodegradation of organic dye pollutants in water (RSC Adv. (2020) 10 (29808–29820) DOI: 10.1039/D0RA05192F)

Cite this

A hierarchical Ca/TiO2/NH2-MIL-125 nanocomposite photocatalyst for solar visible light induced photodegradation of organic dye pollutants in water

Abstract

ASJC Scopus subject areas

Access to Document

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Fingerprint

Research output

Correction: A hierarchical Ca/TiO2/NH2-MIL-125 nanocomposite photocatalyst for solar visible light induced photodegradation of organic dye pollutants in water (RSC Adv. (2020) 10 (29808–29820) DOI: 10.1039/D0RA05192F)

Cite this

Correction: A hierarchical Ca/TiO₂/NH₂-MIL-125 nanocomposite photocatalyst for solar visible light induced photodegradation of organic dye pollutants in water (RSC Adv. (2020) 10 (29808–29820) DOI: 10.1039/D0RA05192F)