Ti2O3/TiO2-Assisted Solar Photocatalytic Degradation of 4-tert-Butylphenol in Water

Colored Ti2O3 and Ti2O3/TiO2 (mTiO) catalysts were prepared by the thermal treatment method. The effects of treatment temperature on the structure, surface area, morphology and optical...

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Autores principales:	Saule Mergenbayeva, Timur Sh. Atabaev, Stavros G. Poulopoulos
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	4-tert-butylphenol solar photocatalysis Ti<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub> degradation mineralization Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/a9f17a25c42a42dbb96b16bd66a22824
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spelling	oai:doaj.org-article:a9f17a25c42a42dbb96b16bd66a228242021-11-25T17:06:33ZTi<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>-Assisted Solar Photocatalytic Degradation of 4-tert-Butylphenol in Water10.3390/catal111113792073-4344https://doaj.org/article/a9f17a25c42a42dbb96b16bd66a228242021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4344/11/11/1379https://doaj.org/toc/2073-4344Colored Ti<sub>2</sub>O<sub>3</sub> and Ti<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub> (mTiO) catalysts were prepared by the thermal treatment method. The effects of treatment temperature on the structure, surface area, morphology and optical properties of the as-prepared samples were investigated by XRD, BET, SEM, TEM, Raman and UV–VIS spectroscopies. Phase transformation from Ti<sub>2</sub>O<sub>3</sub> to TiO<sub>2</sub> rutile and TiO<sub>2</sub> anatase to TiO<sub>2</sub> rutile increased with increasing treatment temperatures. The photocatalytic activities of thermally treated Ti<sub>2</sub>O<sub>3</sub> and mTiO were evaluated in the photodegradation of 4-tert-butylphenol (4-t-BP) under solar light irradiation. mTiO heated at 650 °C exhibited the highest photocatalytic activity for the degradation and mineralization of 4-t-BP, being approximately 89.8% and 52.4%, respectively, after 150 min of irradiation. The effects of various water constituents, including anions (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>CO</mi><mrow><mn>3</mn></mrow><mrow><mn>2</mn><mo>−</mo></mrow></msubsup></mrow></semantics></math></inline-formula>, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>NO</mi><mrow><mn>3</mn></mrow></msub></mrow></semantics></math></inline-formula>, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>Cl</mi></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>HCO</mi><mrow><mn>3</mn></mrow><mrow><mo>−</mo></mrow></msubsup></mrow></semantics></math></inline-formula>) and humic acid (HA), on the photocatalytic activity of mTiO-650 were evaluated. The results showed that the presence of carbonate and nitrate ions inhibited 4-t-BP photodegradation, while chloride and bicarbonate ions enhanced the photodegradation of 4-t-BP. As for HA, its effect on the degradation of 4-t-BP was dependent on the concentration. A low concentration of HA (1 mg/L) promoted the degradation of 4-t-BP from 89.8% to 92.4% by mTiO-650, but higher concentrations of HA (5 mg/L and 10 mg/L) had a negative effect.Saule MergenbayevaTimur Sh. AtabaevStavros G. PoulopoulosMDPI AGarticle4-tert-butylphenolsolar photocatalysisTi<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>degradationmineralizationChemical technologyTP1-1185ChemistryQD1-999ENCatalysts, Vol 11, Iss 1379, p 1379 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	4-tert-butylphenol solar photocatalysis Ti<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub> degradation mineralization Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	4-tert-butylphenol solar photocatalysis Ti<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub> degradation mineralization Chemical technology TP1-1185 Chemistry QD1-999 Saule Mergenbayeva Timur Sh. Atabaev Stavros G. Poulopoulos Ti<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>-Assisted Solar Photocatalytic Degradation of 4-tert-Butylphenol in Water
description	Colored Ti<sub>2</sub>O<sub>3</sub> and Ti<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub> (mTiO) catalysts were prepared by the thermal treatment method. The effects of treatment temperature on the structure, surface area, morphology and optical properties of the as-prepared samples were investigated by XRD, BET, SEM, TEM, Raman and UV–VIS spectroscopies. Phase transformation from Ti<sub>2</sub>O<sub>3</sub> to TiO<sub>2</sub> rutile and TiO<sub>2</sub> anatase to TiO<sub>2</sub> rutile increased with increasing treatment temperatures. The photocatalytic activities of thermally treated Ti<sub>2</sub>O<sub>3</sub> and mTiO were evaluated in the photodegradation of 4-tert-butylphenol (4-t-BP) under solar light irradiation. mTiO heated at 650 °C exhibited the highest photocatalytic activity for the degradation and mineralization of 4-t-BP, being approximately 89.8% and 52.4%, respectively, after 150 min of irradiation. The effects of various water constituents, including anions (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>CO</mi><mrow><mn>3</mn></mrow><mrow><mn>2</mn><mo>−</mo></mrow></msubsup></mrow></semantics></math></inline-formula>, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>NO</mi><mrow><mn>3</mn></mrow></msub></mrow></semantics></math></inline-formula>, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>Cl</mi></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msubsup><mi>HCO</mi><mrow><mn>3</mn></mrow><mrow><mo>−</mo></mrow></msubsup></mrow></semantics></math></inline-formula>) and humic acid (HA), on the photocatalytic activity of mTiO-650 were evaluated. The results showed that the presence of carbonate and nitrate ions inhibited 4-t-BP photodegradation, while chloride and bicarbonate ions enhanced the photodegradation of 4-t-BP. As for HA, its effect on the degradation of 4-t-BP was dependent on the concentration. A low concentration of HA (1 mg/L) promoted the degradation of 4-t-BP from 89.8% to 92.4% by mTiO-650, but higher concentrations of HA (5 mg/L and 10 mg/L) had a negative effect.
format	article
author	Saule Mergenbayeva Timur Sh. Atabaev Stavros G. Poulopoulos
author_facet	Saule Mergenbayeva Timur Sh. Atabaev Stavros G. Poulopoulos
author_sort	Saule Mergenbayeva
title	Ti<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>-Assisted Solar Photocatalytic Degradation of 4-tert-Butylphenol in Water
title_short	Ti<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>-Assisted Solar Photocatalytic Degradation of 4-tert-Butylphenol in Water
title_full	Ti<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>-Assisted Solar Photocatalytic Degradation of 4-tert-Butylphenol in Water
title_fullStr	Ti<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>-Assisted Solar Photocatalytic Degradation of 4-tert-Butylphenol in Water
title_full_unstemmed	Ti<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>-Assisted Solar Photocatalytic Degradation of 4-tert-Butylphenol in Water
title_sort	ti<sub>2</sub>o<sub>3</sub>/tio<sub>2</sub>-assisted solar photocatalytic degradation of 4-tert-butylphenol in water
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/a9f17a25c42a42dbb96b16bd66a22824
work_keys_str_mv	AT saulemergenbayeva tisub2subosub3subtiosub2subassistedsolarphotocatalyticdegradationof4tertbutylphenolinwater AT timurshatabaev tisub2subosub3subtiosub2subassistedsolarphotocatalyticdegradationof4tertbutylphenolinwater AT stavrosgpoulopoulos tisub2subosub3subtiosub2subassistedsolarphotocatalyticdegradationof4tertbutylphenolinwater
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Ti<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>-Assisted Solar Photocatalytic Degradation of 4-tert-Butylphenol in Water

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