Photocatalytic Materials Based on g-C<sub>3</sub>N<sub>4</sub> Obtained by the One-Pot Calcination Method
Photocatalysts based on graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) attracted considerable attention due to their efficiency in hydrogen production and decomposition of organic pollutants in aqueous solutions. In this work, a new approach to synthesis of g-C<su...
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MDPI AG
2023-09-01
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| author | Radik R. Shamilov Zufar M. Muzipov Dmitriy O. Sagdeev Kirill V. Kholin Alina F. Saifina Aidar T. Gubaidullin Yuriy G. Galyametdinov |
| author_facet | Radik R. Shamilov Zufar M. Muzipov Dmitriy O. Sagdeev Kirill V. Kholin Alina F. Saifina Aidar T. Gubaidullin Yuriy G. Galyametdinov |
| author_sort | Radik R. Shamilov |
| collection | DOAJ |
| description | Photocatalysts based on graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) attracted considerable attention due to their efficiency in hydrogen production and decomposition of organic pollutants in aqueous solutions. In this work, a new approach to synthesis of g-C<sub>3</sub>N<sub>4</sub>-based heterostructures with improved photocatalytic properties was proposed. The properties of two different CdZnS/g-C<sub>3</sub>N<sub>4</sub> and ZnIn<sub>2</sub>S<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> heterostructures synthesized and studied in the same conditions were compared. Pure g-C<sub>3</sub>N<sub>4</sub> photocatalysts as well as CdZnS/g-C<sub>3</sub>N<sub>4</sub> and ZnIn<sub>2</sub>S<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> heterostructures were synthesized using a one-pot method by calcining the mixture of the initial components. Photocatalytic properties of the synthesized substances were evaluated in a model reaction of rhodamine B decomposition induced by visible light. It was shown that ultrasonic treatment in the presence of a nonionic surfactant enhances the photocatalytic activity of g-C<sub>3</sub>N<sub>4</sub> structures as a result of a higher photocatalyst dispersity. The electronic structures of the CdZnS/g-C<sub>3</sub>N<sub>4</sub> and ZnIn<sub>2</sub>S<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> heterostructures were analyzed in detail. The photocatalytic activity of heterostructures was found to be 2–3-fold higher as compared with an unmodified g-C<sub>3</sub>N<sub>4</sub> due to formation of a type II heterojunction and Z-scheme structures. Decomposition of rhodamine B occurred mostly via formation of active oxygen radicals by irradiation. |
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| spelling | doaj.art-7a7bc1697aea43feaae0d45335f1bd7b2023-11-19T09:57:24ZengMDPI AGC2311-56292023-09-01938510.3390/c9030085Photocatalytic Materials Based on g-C<sub>3</sub>N<sub>4</sub> Obtained by the One-Pot Calcination MethodRadik R. Shamilov0Zufar M. Muzipov1Dmitriy O. Sagdeev2Kirill V. Kholin3Alina F. Saifina4Aidar T. Gubaidullin5Yuriy G. Galyametdinov6Department of Physical and Colloid Chemistry, Kazan National Research Technological University, 68 Karl Marx Str., 420015 Kazan, RussiaDepartment of Physical and Colloid Chemistry, Kazan National Research Technological University, 68 Karl Marx Str., 420015 Kazan, RussiaDepartment of Physical and Colloid Chemistry, Kazan National Research Technological University, 68 Karl Marx Str., 420015 Kazan, RussiaDepartment of Physical and Colloid Chemistry, Kazan National Research Technological University, 68 Karl Marx Str., 420015 Kazan, RussiaArbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov Str., 420088 Kazan, RussiaArbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8 Arbuzov Str., 420088 Kazan, RussiaDepartment of Physical and Colloid Chemistry, Kazan National Research Technological University, 68 Karl Marx Str., 420015 Kazan, RussiaPhotocatalysts based on graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) attracted considerable attention due to their efficiency in hydrogen production and decomposition of organic pollutants in aqueous solutions. In this work, a new approach to synthesis of g-C<sub>3</sub>N<sub>4</sub>-based heterostructures with improved photocatalytic properties was proposed. The properties of two different CdZnS/g-C<sub>3</sub>N<sub>4</sub> and ZnIn<sub>2</sub>S<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> heterostructures synthesized and studied in the same conditions were compared. Pure g-C<sub>3</sub>N<sub>4</sub> photocatalysts as well as CdZnS/g-C<sub>3</sub>N<sub>4</sub> and ZnIn<sub>2</sub>S<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> heterostructures were synthesized using a one-pot method by calcining the mixture of the initial components. Photocatalytic properties of the synthesized substances were evaluated in a model reaction of rhodamine B decomposition induced by visible light. It was shown that ultrasonic treatment in the presence of a nonionic surfactant enhances the photocatalytic activity of g-C<sub>3</sub>N<sub>4</sub> structures as a result of a higher photocatalyst dispersity. The electronic structures of the CdZnS/g-C<sub>3</sub>N<sub>4</sub> and ZnIn<sub>2</sub>S<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> heterostructures were analyzed in detail. The photocatalytic activity of heterostructures was found to be 2–3-fold higher as compared with an unmodified g-C<sub>3</sub>N<sub>4</sub> due to formation of a type II heterojunction and Z-scheme structures. Decomposition of rhodamine B occurred mostly via formation of active oxygen radicals by irradiation.https://www.mdpi.com/2311-5629/9/3/85photocatalysisone-pot synthesisg-C<sub>3</sub>N<sub>4</sub>CdZnSZnIn<sub>2</sub>S<sub>4</sub>heterostructures |
| spellingShingle | Radik R. Shamilov Zufar M. Muzipov Dmitriy O. Sagdeev Kirill V. Kholin Alina F. Saifina Aidar T. Gubaidullin Yuriy G. Galyametdinov Photocatalytic Materials Based on g-C<sub>3</sub>N<sub>4</sub> Obtained by the One-Pot Calcination Method C photocatalysis one-pot synthesis g-C<sub>3</sub>N<sub>4</sub> CdZnS ZnIn<sub>2</sub>S<sub>4</sub> heterostructures |
| title | Photocatalytic Materials Based on g-C<sub>3</sub>N<sub>4</sub> Obtained by the One-Pot Calcination Method |
| title_full | Photocatalytic Materials Based on g-C<sub>3</sub>N<sub>4</sub> Obtained by the One-Pot Calcination Method |
| title_fullStr | Photocatalytic Materials Based on g-C<sub>3</sub>N<sub>4</sub> Obtained by the One-Pot Calcination Method |
| title_full_unstemmed | Photocatalytic Materials Based on g-C<sub>3</sub>N<sub>4</sub> Obtained by the One-Pot Calcination Method |
| title_short | Photocatalytic Materials Based on g-C<sub>3</sub>N<sub>4</sub> Obtained by the One-Pot Calcination Method |
| title_sort | photocatalytic materials based on g c sub 3 sub n sub 4 sub obtained by the one pot calcination method |
| topic | photocatalysis one-pot synthesis g-C<sub>3</sub>N<sub>4</sub> CdZnS ZnIn<sub>2</sub>S<sub>4</sub> heterostructures |
| url | https://www.mdpi.com/2311-5629/9/3/85 |
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