Sonocatalytic degradation of an anthraquinone dye using TiO2-biochar nanocomposite

Alireza Khataee; Berkant Kayan; Peyman Gholami; Dimitrios Kalderis; Sema Akay

doi:10.1016/j.ultsonch.2017.04.018

Sonocatalytic degradation of an anthraquinone dye using TiO₂-biochar nanocomposite

Alireza Khataee^*, Berkant Kayan, Peyman Gholami, Dimitrios Kalderis, Sema Akay

^*Corresponding author for this work

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

150 Citations (Scopus)

Abstract

TiO₂-biochar (TiO₂-BC) nanocomposite was synthesized by sol-gel method. The characteristics of the prepared nanocomposite were examined using X-ray fluorescence, scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy and N₂ adsorption-desorption analysis. The performance of synthesized TiO₂-BC nanocomposite as efficient sonocatalyst was studied for the degradation of Reactive Blue 69 (RB69). Sonocatalytic degradation of RB69 in the presence of TiO₂-BC nanocomposite could be explained by the mechanisms of hot spots and sonoluminescence. The optimized values for main operational parameters were determined as pH of 7, TiO₂-BC dosage of 1.5 g/L, RB69 initial concentration of 20 mg/L and ultrasonic power of 300 W. Furthermore, the effect of ^[rad]OH, h⁺ and O₂^[rad]− scavengers on the RB69 degradation efficiency was studied. Gas chromatography-mass spectroscopy analysis was used to identify intermediate compounds formed during the RB69 degradation. The results of repeated applications of TiO₂-BC in the sonocatalytic process verified its stability in long-term usage.

Original language	English
Pages (from-to)	120-128
Number of pages	9
Journal	Ultrasonics Sonochemistry
Volume	39
DOIs	https://doi.org/10.1016/j.ultsonch.2017.04.018
Publication status	Published - 1 Nov 2017
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2017 Elsevier B.V.

Keywords

Biochar
Dye degradation
Sonocatalyst
Sonocatalytic degradation
TiO nanoparticles
TiO-biochar nanocomposite

UN SDGs

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

Access to Document

10.1016/j.ultsonch.2017.04.018

Cite this

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title = "Sonocatalytic degradation of an anthraquinone dye using TiO2-biochar nanocomposite",

abstract = "TiO2-biochar (TiO2-BC) nanocomposite was synthesized by sol-gel method. The characteristics of the prepared nanocomposite were examined using X-ray fluorescence, scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy and N2 adsorption-desorption analysis. The performance of synthesized TiO2-BC nanocomposite as efficient sonocatalyst was studied for the degradation of Reactive Blue 69 (RB69). Sonocatalytic degradation of RB69 in the presence of TiO2-BC nanocomposite could be explained by the mechanisms of hot spots and sonoluminescence. The optimized values for main operational parameters were determined as pH of 7, TiO2-BC dosage of 1.5 g/L, RB69 initial concentration of 20 mg/L and ultrasonic power of 300 W. Furthermore, the effect of [rad]OH, h+ and O2[rad]− scavengers on the RB69 degradation efficiency was studied. Gas chromatography-mass spectroscopy analysis was used to identify intermediate compounds formed during the RB69 degradation. The results of repeated applications of TiO2-BC in the sonocatalytic process verified its stability in long-term usage.",

keywords = "Biochar, Dye degradation, Sonocatalyst, Sonocatalytic degradation, TiO nanoparticles, TiO-biochar nanocomposite",

author = "Alireza Khataee and Berkant Kayan and Peyman Gholami and Dimitrios Kalderis and Sema Akay",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

month = nov,

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doi = "10.1016/j.ultsonch.2017.04.018",

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T1 - Sonocatalytic degradation of an anthraquinone dye using TiO2-biochar nanocomposite

AU - Khataee, Alireza

AU - Kayan, Berkant

AU - Gholami, Peyman

AU - Kalderis, Dimitrios

AU - Akay, Sema

PY - 2017/11/1

Y1 - 2017/11/1

N2 - TiO2-biochar (TiO2-BC) nanocomposite was synthesized by sol-gel method. The characteristics of the prepared nanocomposite were examined using X-ray fluorescence, scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy and N2 adsorption-desorption analysis. The performance of synthesized TiO2-BC nanocomposite as efficient sonocatalyst was studied for the degradation of Reactive Blue 69 (RB69). Sonocatalytic degradation of RB69 in the presence of TiO2-BC nanocomposite could be explained by the mechanisms of hot spots and sonoluminescence. The optimized values for main operational parameters were determined as pH of 7, TiO2-BC dosage of 1.5 g/L, RB69 initial concentration of 20 mg/L and ultrasonic power of 300 W. Furthermore, the effect of [rad]OH, h+ and O2[rad]− scavengers on the RB69 degradation efficiency was studied. Gas chromatography-mass spectroscopy analysis was used to identify intermediate compounds formed during the RB69 degradation. The results of repeated applications of TiO2-BC in the sonocatalytic process verified its stability in long-term usage.

AB - TiO2-biochar (TiO2-BC) nanocomposite was synthesized by sol-gel method. The characteristics of the prepared nanocomposite were examined using X-ray fluorescence, scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy and N2 adsorption-desorption analysis. The performance of synthesized TiO2-BC nanocomposite as efficient sonocatalyst was studied for the degradation of Reactive Blue 69 (RB69). Sonocatalytic degradation of RB69 in the presence of TiO2-BC nanocomposite could be explained by the mechanisms of hot spots and sonoluminescence. The optimized values for main operational parameters were determined as pH of 7, TiO2-BC dosage of 1.5 g/L, RB69 initial concentration of 20 mg/L and ultrasonic power of 300 W. Furthermore, the effect of [rad]OH, h+ and O2[rad]− scavengers on the RB69 degradation efficiency was studied. Gas chromatography-mass spectroscopy analysis was used to identify intermediate compounds formed during the RB69 degradation. The results of repeated applications of TiO2-BC in the sonocatalytic process verified its stability in long-term usage.

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