Kinetics and mechanism of enhanced photocatalytic activity under visible light using synthesized PrxCd1-xSe nanoparticles

Alireza Khataee; Amirreza Khataee; Mehrangiz Fathinia; Younes Hanifehpour; Sang Woo Joo

doi:10.1021/ie402352g

Kinetics and mechanism of enhanced photocatalytic activity under visible light using synthesized Pr_xCd_1-xSe nanoparticles

Alireza Khataee^*, Amirreza Khataee^*, Mehrangiz Fathinia, Younes Hanifehpour, Sang Woo Joo

^*Corresponding author for this work

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

56 Citations (Scopus)

Abstract

Praseodymium (Pr)-doped CdSe nanoparticles with different Pr contents were successfully synthesized by an easy hydrothermal method. The prepared samples were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). XRD analysis demonstrated that the particles were excellently crystallized and correspond to cubic CdSe phase. SEM images indicated that the sizes of the particles were in the range of 50-100 nm. Photocatalytic efficiency of pure and Pr-doped CdSe samples was evaluated by monitoring the decolorization of malachite green (MG) in aqueous solution under visible light irradiation. Color removal efficiencies of 47.16% for CdSe and 94.32% for Pr_0.06Cd_0.94Se were achieved at 120 min. It was found that the presence of Cl^-, SO₄^-2, and HCO ₃^- ions obstructed the photocatalytic degradation of MG, but the presence of S₂O₈^2- accelerated it. Also, the effect of operational parameters at optimum conditions was modeled regarding the nonlinear regression analysis.

Original language	English
Pages (from-to)	13357-13369
Number of pages	13
Journal	Industrial and Engineering Chemistry Research
Volume	52
Issue number	37
DOIs	https://doi.org/10.1021/ie402352g
Publication status	Published - 18 Sept 2013
Externally published	Yes

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title = "Kinetics and mechanism of enhanced photocatalytic activity under visible light using synthesized PrxCd1-xSe nanoparticles",

abstract = "Praseodymium (Pr)-doped CdSe nanoparticles with different Pr contents were successfully synthesized by an easy hydrothermal method. The prepared samples were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). XRD analysis demonstrated that the particles were excellently crystallized and correspond to cubic CdSe phase. SEM images indicated that the sizes of the particles were in the range of 50-100 nm. Photocatalytic efficiency of pure and Pr-doped CdSe samples was evaluated by monitoring the decolorization of malachite green (MG) in aqueous solution under visible light irradiation. Color removal efficiencies of 47.16\% for CdSe and 94.32\% for Pr0.06Cd0.94Se were achieved at 120 min. It was found that the presence of Cl-, SO4-2, and HCO 3- ions obstructed the photocatalytic degradation of MG, but the presence of S2O82- accelerated it. Also, the effect of operational parameters at optimum conditions was modeled regarding the nonlinear regression analysis.",

author = "Alireza Khataee and Amirreza Khataee and Mehrangiz Fathinia and Younes Hanifehpour and Joo, \{Sang Woo\}",

year = "2013",

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doi = "10.1021/ie402352g",

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journal = "Industrial and Engineering Chemistry Research",

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T1 - Kinetics and mechanism of enhanced photocatalytic activity under visible light using synthesized PrxCd1-xSe nanoparticles

AU - Khataee, Alireza

AU - Khataee, Amirreza

AU - Fathinia, Mehrangiz

AU - Hanifehpour, Younes

AU - Joo, Sang Woo

PY - 2013/9/18

Y1 - 2013/9/18

N2 - Praseodymium (Pr)-doped CdSe nanoparticles with different Pr contents were successfully synthesized by an easy hydrothermal method. The prepared samples were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). XRD analysis demonstrated that the particles were excellently crystallized and correspond to cubic CdSe phase. SEM images indicated that the sizes of the particles were in the range of 50-100 nm. Photocatalytic efficiency of pure and Pr-doped CdSe samples was evaluated by monitoring the decolorization of malachite green (MG) in aqueous solution under visible light irradiation. Color removal efficiencies of 47.16% for CdSe and 94.32% for Pr0.06Cd0.94Se were achieved at 120 min. It was found that the presence of Cl-, SO4-2, and HCO 3- ions obstructed the photocatalytic degradation of MG, but the presence of S2O82- accelerated it. Also, the effect of operational parameters at optimum conditions was modeled regarding the nonlinear regression analysis.

AB - Praseodymium (Pr)-doped CdSe nanoparticles with different Pr contents were successfully synthesized by an easy hydrothermal method. The prepared samples were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). XRD analysis demonstrated that the particles were excellently crystallized and correspond to cubic CdSe phase. SEM images indicated that the sizes of the particles were in the range of 50-100 nm. Photocatalytic efficiency of pure and Pr-doped CdSe samples was evaluated by monitoring the decolorization of malachite green (MG) in aqueous solution under visible light irradiation. Color removal efficiencies of 47.16% for CdSe and 94.32% for Pr0.06Cd0.94Se were achieved at 120 min. It was found that the presence of Cl-, SO4-2, and HCO 3- ions obstructed the photocatalytic degradation of MG, but the presence of S2O82- accelerated it. Also, the effect of operational parameters at optimum conditions was modeled regarding the nonlinear regression analysis.

UR - https://www.scopus.com/pages/publications/84884375552

U2 - 10.1021/ie402352g

DO - 10.1021/ie402352g

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SN - 0888-5885

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EP - 13369

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

IS - 37

ER -

Kinetics and mechanism of enhanced photocatalytic activity under visible light using synthesized Pr_xCd_1-xSe nanoparticles

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