Synergetic effect of ZnIn2S4 nanosheets with metal-organic framework molding heterostructure for efficient visible- light driven photocatalytic reduction of Cr(VI)
| Autor: | Herman Maloko Loussala, Rameez Razaq, Umair Azhar, Muhammad Bilal Hussain |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
General Chemical Engineering
Composite number 02 engineering and technology Molding (process) 010402 general chemistry 01 natural sciences Solvothermal approaches lcsh:Chemistry Solar light harvestation Spectroscopy Visible light Chemistry Heterojunction General Chemistry 021001 nanoscience & nanotechnology Synergetic effect of ZnIn2S4 nanosheets Varying amount of UiO-66-NH2 0104 chemical sciences Chemical engineering lcsh:QD1-999 Photocatalysis Surface modification Metal-organic framework Photocatalytic Cr(VI) reduction 0210 nano-technology Visible spectrum |
| Zdroj: | Arabian Journal of Chemistry, Vol 13, Iss 7, Pp 5939-5948 (2020) |
| ISSN: | 1878-5352 |
| Popis: | The photocatalytic reduction of toxic Cr(VI), to green Cr(III) by visible light, is highly required. Metal-organic frameworks have been waged more and more devotion in the field of environmental remediation. Diversification along with functionalization is still thought-provoking and crucial for the progress of metal-organic framework (MOF)-based high activity materials. Herein, a succession of UiO-66-NH2@ZnIn2S4 composites with varying amount of UiO-66-NH2 is prepared by the facile solvothermal technique. Synergetic effect for Cr(VI) reduction is assessed under the influence of visible light (λ > 420 nm). UiO-66-NH2 octahedron is detained by ZnIn2S4 nanoflakes. The obvious enhancement in activity is observed which is credited to the well-suited energy band construction and close interaction between the interface of ZnIn2S4 and UiO-66-NH2, which leads to effective transfer and separation of photogenerated carriers. Synergistic effect could be evidently understood from the PL and UV -spectroscopy, after molding into heterostructure of UiO-66-NH2@ZnIn2S4. In addition, UiO-66-NH2@ZnIn2S4 composites exhibited good stability in photocatalytic reduction. Consequently, this UiO-66-NH2 constructed composite has high potential in the field of environmental remediation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|