Construction of Bi4Ti3O12@ZnIn2S4 heterostructures: Photocatalytic performance and chemical speciation investigation
In this study, 2D/3D Bi4Ti3O12@ZnIn2S4 hybrid photocatalytic systems were prepared by a facile two-step hydrothermal process, whereas their morphology, chemical speciation and optical properties were investigated in detail. Information from surface analysis demonstrated the co-existence of Bi3-x sub...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-10-01
|
| Series: | Next Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949822825005866 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849233500685729792 |
|---|---|
| author | Nikolaos Karamoschos Andreas Katsamitros Ioannis Konstantinou Dimitrios Tasis |
| author_facet | Nikolaos Karamoschos Andreas Katsamitros Ioannis Konstantinou Dimitrios Tasis |
| author_sort | Nikolaos Karamoschos |
| collection | DOAJ |
| description | In this study, 2D/3D Bi4Ti3O12@ZnIn2S4 hybrid photocatalytic systems were prepared by a facile two-step hydrothermal process, whereas their morphology, chemical speciation and optical properties were investigated in detail. Information from surface analysis demonstrated the co-existence of Bi3-x suboxide species with unsaturated coordination within Bi4Ti3O12 lattice. Vibrational characterization revealed a submicron-scale homogeneity in the grains of ZnIn2S4-enriched hybrid. Besides the involved semiconducting components, additional Raman peaks were recorded, which were attributed to Bi4-xMxTi3O12 species (M: Zn and/or In). The absorbance of such Bi4Ti3O12@ZnIn2S4 hybrids spanned from the ultraviolet up to the visible/near-infrared limit. The optimized hybrid (containing 16 wt% of Bi4Ti3O12) was able to photodegrade 97.5 % of an azo-dye within 60 min irradiation under visible wavelengths. Scavenging experiments revealed a lack of selectivity for a specific oxidation path. Transients, such as holes, hydroxy radicals and singlet oxygen acted complementary towards the oxidative degradation of azo-dye. |
| format | Article |
| id | doaj-art-c19e7bb9592c484394d79a107e055d45 |
| institution | Kabale University |
| issn | 2949-8228 |
| language | English |
| publishDate | 2025-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Next Materials |
| spelling | doaj-art-c19e7bb9592c484394d79a107e055d452025-08-20T05:08:29ZengElsevierNext Materials2949-82282025-10-01910106810.1016/j.nxmate.2025.101068Construction of Bi4Ti3O12@ZnIn2S4 heterostructures: Photocatalytic performance and chemical speciation investigationNikolaos Karamoschos0Andreas Katsamitros1Ioannis Konstantinou2Dimitrios Tasis3Department of Chemistry, University of Ioannina, Ioannina 45110, GreeceDepartment of Chemistry, University of Ioannina, Ioannina 45110, GreeceDepartment of Chemistry, University of Ioannina, Ioannina 45110, Greece; Institute of Materials Science and Computing, University Research Center of Ioannina (URCI), Ioannina 45110, GreeceDepartment of Chemistry, University of Ioannina, Ioannina 45110, Greece; Institute of Materials Science and Computing, University Research Center of Ioannina (URCI), Ioannina 45110, Greece; Institute of Chemical Engineering Sciences (ICE-HT), Foundation of Research and Technology Hellas, P.O. Box 1414, Rio Patras 26504, Greece; Corresponding author at: Department of Chemistry, University of Ioannina, Ioannina 45110, Greece.In this study, 2D/3D Bi4Ti3O12@ZnIn2S4 hybrid photocatalytic systems were prepared by a facile two-step hydrothermal process, whereas their morphology, chemical speciation and optical properties were investigated in detail. Information from surface analysis demonstrated the co-existence of Bi3-x suboxide species with unsaturated coordination within Bi4Ti3O12 lattice. Vibrational characterization revealed a submicron-scale homogeneity in the grains of ZnIn2S4-enriched hybrid. Besides the involved semiconducting components, additional Raman peaks were recorded, which were attributed to Bi4-xMxTi3O12 species (M: Zn and/or In). The absorbance of such Bi4Ti3O12@ZnIn2S4 hybrids spanned from the ultraviolet up to the visible/near-infrared limit. The optimized hybrid (containing 16 wt% of Bi4Ti3O12) was able to photodegrade 97.5 % of an azo-dye within 60 min irradiation under visible wavelengths. Scavenging experiments revealed a lack of selectivity for a specific oxidation path. Transients, such as holes, hydroxy radicals and singlet oxygen acted complementary towards the oxidative degradation of azo-dye.http://www.sciencedirect.com/science/article/pii/S2949822825005866Bismuth titanateZinc indium sulfidePhotocatalysisCharacterizationDye degradation |
| spellingShingle | Nikolaos Karamoschos Andreas Katsamitros Ioannis Konstantinou Dimitrios Tasis Construction of Bi4Ti3O12@ZnIn2S4 heterostructures: Photocatalytic performance and chemical speciation investigation Next Materials Bismuth titanate Zinc indium sulfide Photocatalysis Characterization Dye degradation |
| title | Construction of Bi4Ti3O12@ZnIn2S4 heterostructures: Photocatalytic performance and chemical speciation investigation |
| title_full | Construction of Bi4Ti3O12@ZnIn2S4 heterostructures: Photocatalytic performance and chemical speciation investigation |
| title_fullStr | Construction of Bi4Ti3O12@ZnIn2S4 heterostructures: Photocatalytic performance and chemical speciation investigation |
| title_full_unstemmed | Construction of Bi4Ti3O12@ZnIn2S4 heterostructures: Photocatalytic performance and chemical speciation investigation |
| title_short | Construction of Bi4Ti3O12@ZnIn2S4 heterostructures: Photocatalytic performance and chemical speciation investigation |
| title_sort | construction of bi4ti3o12 znin2s4 heterostructures photocatalytic performance and chemical speciation investigation |
| topic | Bismuth titanate Zinc indium sulfide Photocatalysis Characterization Dye degradation |
| url | http://www.sciencedirect.com/science/article/pii/S2949822825005866 |
| work_keys_str_mv | AT nikolaoskaramoschos constructionofbi4ti3o12znin2s4heterostructuresphotocatalyticperformanceandchemicalspeciationinvestigation AT andreaskatsamitros constructionofbi4ti3o12znin2s4heterostructuresphotocatalyticperformanceandchemicalspeciationinvestigation AT ioanniskonstantinou constructionofbi4ti3o12znin2s4heterostructuresphotocatalyticperformanceandchemicalspeciationinvestigation AT dimitriostasis constructionofbi4ti3o12znin2s4heterostructuresphotocatalyticperformanceandchemicalspeciationinvestigation |