Tuning the band gap of TiO2 by tungsten doping for efficient UV and visible photodegradation of Congo red dye

Ullah, Irfan; Haider, Ali; Khalid, Nasir; Ali, Saqib; Ahmed, Sajjad; Khan, Yaqoob; Ahmed, Nisar; Zubair, Muhammad

doi:10.1016/j.saa.2018.06.046

Cited by 42 publications

(9 citation statements)

References 36 publications

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“…Apart from that, they are easily suspended at the bottom of reaction media, necessitating frequent stirring to keep it unsuspended, making it challenging to apply in a continuous flow system. On that note, photocatalysts immobilized over a substrate had received special attention thanks to the ease of recovery and reusability, low operational cost, and achievement of complete mineralization of organic compounds to carbon dioxide and water under ambient operational conditions [109].…”

Section: Photodegradation Of Paes By Tio2 Photocatalystsmentioning

confidence: 99%

Insights into the Titania (TiO2) Photocatalysis on the Removal of Phthalic Acid Esters (PAEs) in Water

Tubillah

Chandren

2022

Bull. Chem. React. Eng. Catal.

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In this era of globalization, plastic is regarded as one of the most versatile innovations, finding its uses ranging from packaging, automotive, agriculture, and construction to the medical and pharmaceutical industries. Unfortunately, the single-use nature of plastics leads to ecological and environmental problems. Among conventional disposal management of plastic waste are landfilling dumping, incineration, and recycling. However, not all plastic waste goes into disposal management and ends up accumulating in lakes, rivers, and seas. In the aquatic environment, the action of photochemical weathering plastics has resulted in the release of chemical additives such as phthalic acid esters (PAEs), an important plasticizer added to plastic products to improve their softness, flexibility, and durability. Nowadays, PAEs have been ubiquitously detected in our environment and numerous organisms are exposed to PAEs to some extent. As PAEs carry endocrine disruptive and carcinogenicity properties, an urgent search for the development of an efficient and effective method to remove PAEs from the environment is needed. As a viable option, titania (TiO2) photocatalysis is a promising tool to combat the PAEs contamination in our environment owing to its high photocatalytic activity, cost-effectiveness, and its ability to totally mineralize PAEs into carbon dioxide and water. Hence, this paper aims to highlight the concerning issue of the contamination of PAEs in our aquatic environments and the summary of the removal of PAEs by TiO2 photocatalysis. This review concerning the significance of knowledge on environmental PAEs would hopefully spark huge interest and future development to tackle this plastic-associated pollutant. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Section: Photodegradation Of Paes By Tio2 Photocatalystsmentioning

confidence: 99%

Insights into the Titania (TiO2) Photocatalysis on the Removal of Phthalic Acid Esters (PAEs) in Water

Tubillah

Chandren

2022

Bull. Chem. React. Eng. Catal.

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“…La energía de banda prohibida varía según el dopante de acuerdo con la referencia siendo esta de 3.20 eV (Sharma, 2015). Se obtuvo una energía de 3.15 eV muy cercana a la teórica correspondiente a la fase anatasa con un valor de 3.2 eV, en la muestra T2 se obtuvo 2.3 eV de acuerdo a la bibliografía (Ullah, 2018) es muy similar de acuerdo a otras referencias, la energía obtenía con Tungsteno (W 6+ ) es muy favorable ya que necesita una menor energía para poder llevar a cabo la fotocatálisis, en la muestra T3 y T4 donde el agente dopante es el Europio (Eu 3+ ) se obtuvo un valor de banda prohibida de 3.8 y 2.5 eV, respectivamente. Utilizando los valores obtenidos de la banda prohibida, mediante la ecuación de Planck el valor se calculó la absorción del material en términos de longitud de onda (ver tabla 2) (Lai Wei, 2020).…”

Section: Espectroscopia Ultravioleta Visible (Uv-vis)unclassified

Caracterización de polvos de TiO2:Ni2+:Eu3+:W6+ y su uso potencial como catalizador

Ortega-Teodoro

Pérez

Chávez-Güitrón

et al. 2020

ICBI

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En este trabajo se elaboraron polvos de TiO2 dopado con Ni2+, Eu3+ y W6+, estos polvos pueden emplearse como potencial fotocatalizador para la reducción de CO2 y NOx. Se utilizó el método de síntesis sol-gel que partió de tetrabutóxido de titanio, etanol y acetil acetona como precursores. Óxido de europio, nitratos de níquel y tungsteno como sales dopantes. Los polvos de TiO2 dopado con Ni2+, Eu3+ y W6+ fueron sometidos a 600 °C de temperatura de tratamiento térmico por 2 horas. Fueron caracterizados mediante la técnica FT-IR que revela la banda de absorción característica de Ti-O situada a 600 cm-1, La técnica de Difracción de Rayos X (DRX) elucidó que los polvos cristalizaron en la fase anatasa. La Microscopia Electrónica de Barrido mostro que los polvos están constituidos de partículas esféricas de aproximadamente 543 nm y aglomerados cercanos a 20 micrómetros. Finalmente, por la técnica de espectroscopia ultravioleta-visible se determinó que los polvos absorben en la región de 393-593 nm.

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“…The major pollutants in water contain dyes [1], heavy metals [2], antibiotics [3], pathogens [4], etc. Especially, paper, textile, food and leather industries utilize dyes to color their products, the high-speed development in these fields exacerbates water pollution from effluent dyes [5,6]. In view of this, research workers are engaged in developing simple, efficient, environment-friendly and large-scale popularization method [7,8].…”

Section: Introductionmentioning

confidence: 99%

Immobilization of ZnO into polychlorotrifluoroethylene-co-acrylate matrix as hybrid film photocatalyst for effective degradation of methylene blue

Yang

Zhao

Huang

et al. 2021

J. Photopol. Sci. Technol.

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With the continuous growth of industrialization, residual dyes degradation has been a hotspot in present research. Herein, the immobilization of ZnO into polychlorotrifluoroethylene-coacrylate (PCTFE-co-acrylate) matrix render hybrid film with good hydrophilicity and ageing resistance. We studied the effects of different ZnO/PCTFE-co-acrylate ratio on photocatalytic behavior under ultraviolet illumination. The best degradation ability of methylene blue (MB) was obtained for PZ-1 owe to Zn 2+ and defect levels, which achieved up to 96.3% at 120 min later. Meanwhile, concerned kinetics property was adequately explored, which match well with pseudofirst order reaction. Such a simple, green and convenient approach provides a high-performance hybrid film for dyes wastewater purification.

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Tuning the band gap of TiO2 by tungsten doping for efficient UV and visible photodegradation of Congo red dye

Cited by 42 publications

References 36 publications

Insights into the Titania (TiO2) Photocatalysis on the Removal of Phthalic Acid Esters (PAEs) in Water

Insights into the Titania (TiO2) Photocatalysis on the Removal of Phthalic Acid Esters (PAEs) in Water

Caracterización de polvos de TiO2:Ni2+:Eu3+:W6+ y su uso potencial como catalizador

Immobilization of ZnO into polychlorotrifluoroethylene-co-acrylate matrix as hybrid film photocatalyst for effective degradation of methylene blue

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