Retracted Article: A hierarchical Ca/TiO2/NH2-MIL-125 nanocomposite photocatalyst for solar visible light induced photodegradation of organic dye pollutants in water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

Retracted Article: A hierarchical Ca/TiO2/NH2-MIL-125 nanocomposite photocatalyst for solar visible light induced photodegradation of organic dye pollutants in water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

^*Corresponding author for this work

University of Birjand
University of Dundee

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

101 Citations (Scopus)

201 Downloads (Pure)

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 L-1), dye concentration (1-40 mg L-1), 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
DOIs	https://doi.org/10.1039/d0ra05192f
Publication status	Published - 12 Aug 2020
MoE publication type	Not Eligible

Funding

N. A. and M. H. S. gratefully acknowledge the Research Council of University of Birjand (Grant Number: 2948/1399) 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.

Keywords

HIGHLY-EFFICIENT
SELECTIVE OXIDATION
METHYL-ORANGE
DEGRADATION
FRAMEWORK
GRAPHENE
POLYMER
CA
NANOPARTICLES
AZITHROMYCIN

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10.1039/d0ra05192fLicence: CC BY-NC

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@article{8f7bd6f016c848979bd16ac0922fdae1,

title = "Retracted Article: 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 L-1), dye concentration (1-40 mg L-1), 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.",

keywords = "HIGHLY-EFFICIENT, SELECTIVE OXIDATION, METHYL-ORANGE, DEGRADATION, FRAMEWORK, GRAPHENE, POLYMER, CA, NANOPARTICLES, AZITHROMYCIN",

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

year = "2020",

month = aug,

day = "12",

doi = "10.1039/d0ra05192f",

language = "English",

volume = "10",

pages = "29808--29820",

journal = "RSC Advances",

issn = "2046-2069",

publisher = "Royal Society of Chemistry",

number = "50",

}

Retracted Article: A hierarchical Ca/TiO2/NH2-MIL-125 nanocomposite photocatalyst for solar visible light induced photodegradation of organic dye pollutants in water. / Ahmadpour, Najmeh; Sayadi, Mohammad Hossein; Homaeigohar, Shahin.
In: RSC Advances, Vol. 10, No. 50, 12.08.2020, p. 29808-29820.

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

TY - JOUR

T1 - Retracted Article: 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

PY - 2020/8/12

Y1 - 2020/8/12

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 L-1), dye concentration (1-40 mg L-1), 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 L-1), dye concentration (1-40 mg L-1), 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.

KW - HIGHLY-EFFICIENT

KW - SELECTIVE OXIDATION

KW - METHYL-ORANGE

KW - DEGRADATION

KW - FRAMEWORK

KW - GRAPHENE

KW - POLYMER

KW - CA

KW - NANOPARTICLES

KW - AZITHROMYCIN

UR - https://www.scopus.com/pages/publications/85091382493

UR - https://doi.org/10.1039/D3RA90057F

UR - https://doi.org/10.1039/D5RA90141C

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 -

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

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Keywords

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