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https://www.ias.ac.in/article/fulltext/boms/044/0247 -
Keywords
Environmental remediation ;nanoflowers ;nanostructures ;photocatalysis ;zinc oxide. -
Abstract
ZnO-flaky-like nanoflowers with enhanced photocatalytic activity were synthesized by a new hydrothermal technique. The material was characterized and the photocatalytic studies were conducted under solar light irradiation for a model azo dye, Orange G. The material was compared with ZnO nanosphere and nanorod. The results showed the particle size of the nanostructures as a nanorod is 62–81 nm, as a nanosphere is 40–70 nm and as flaky nanoflowers is 20–30 nm (thickness of the flake). The photocatalytic activity showed an enhanced 2-fold increase in the activity for nanoflowers when compared to nanorods and spheres. The Brauner–Emmett–Teller results showed that the nanoflowers (14.197 m$^2$ g$^{-1}$) had a higher surface area nearly 3.5 times when compared to the nanospheres (4.06 m$^2$ g$^{-1}$) and seven times with nanorods (2.1 m$^2$ g$^{-1}$) which is the possibility of such high photocatalytic activity. The smaller particle size and the arrangement of nanoflowers play an important role in enhanced photocatalytic activity.
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Graphical Abstract
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Author Affiliations
G A SUGANYA JOSEPHINE1 K JAYAPRAKASH2 G MEENAKSHI3 A SIVASAMY2 G NIRMALA DEVI4 R N VISWANATH4
- Department of Chemistry, Aarupadai Veedu Institute of Technology – Vinayaka Mission Research Foundation, Rajiv Gandhi Salai, Paiyanoor, Kanchipuram 603104, India
- Chemical Engineering Area, CSIR-Central Leather Research Institute, Adyar 600020, India
- Quaid-e-Millath Government College for Women, Anna Salai, Chennai 600002, India
- Department of Physics, Aarupadai Veedu Institute of Technology – Vinayaka Mission Research Foundation, Rajiv Gandhi Salai, Paiyanoor, Kanchipuram 603104, India
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Dates
- Published
- 8 September 2021
- Manuscript received
- 4 March 2021
- Accepted
- 25 May 2021
- Final version published online
- 8 September 2021
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Supplementary Material
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Bulletin of Materials Science
Volume 46, 2023
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