Abstract
Among various dyes used in textile industries, rhodamine (Rh) dyes are concomitant with neurotoxic effects along with the other assortment of human diseases upon exposure. This work proposes a facile fabrication approach of a polymeric functional platform for rhodamine B (Rh-B) degradation. Herein, ZnO-Au nanohybrid wires have been synthesized with robust microfabrication approaches over the PDMS tubes. These structures have been well characterized with the help of a Field Emission Scanning Electron Microscope and contact angle goniometer. ZnO-Au hybrid wire increased the contact angle on the surface of the tube to 154.5° leading to a superhydrophobic surface. These structures are ~ 2–10 µm in length and width varying from ~ 100–200 nm. These synthetic nanocomposites are successfully tested for photocatalytic applications and evaluated the photocatalytic characteristics of ZnO nanowires and ZnO-Au hybrid wires. The super hydrophobicity of the resulting structure paved the way for its use in "self-cleaning" water treatment systems. It was confirmed that by producing a ZnO-Au hybrid wire, the Rh-B dye degradation time was shortened from ~ 610 min to ~ 330 min with a low-power UV light source. Therefore it can be concluded that the developed ZnO-Au hybrid wire showed a faster photocatalytic response in degrading detrimental dye in comparison to the ZnO nanowire.
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The corresponding author wishes to acknowledge the affiliating institute (IIT Jodhpur) for providing the research seed grant (I/SEED/AKG/20190022), which was instrumental in completing the work.
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Verma, G., Gupta, A. Superhydrophobic ZnO-Au nanocomposite over polydimethylsiloxane tubes for efficient photocatalytic dye degradation. Appl Nanosci 12, 2091–2102 (2022). https://doi.org/10.1007/s13204-022-02479-6
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DOI: https://doi.org/10.1007/s13204-022-02479-6