Visible-Light-Driven Carbon-Doped TiO2-Based Nanocatalysts for Enhanced Activity toward Microbes and Removal of Dye

• DOI: 10.1021/acsomega.1c06112
• Publication Date: 2022-01-28T18:31:00Z
• Authors: Seema Sarwar Ghumro; Bhajan Lal; Tajnees Pirzada
• Keywords: Photodegradation; Nanomaterial-based catalyst; Visible spectrum; Methylene blue; Carbon fibers

Solar-driven photocatalytic approach is an attractive, clean, and effective way for decontamination of water. In this work, visible-light-activated TiO2 nanoflakes (TNFs) carbon-doped (C-TNFs) were synthesized via a facile hydrothermal route using different carbon sources. The as-synthesized nanostructures successfully characterized by powder X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), transmission (TEM), critically disclosing the anatase nature containing titanium-oxygen having flake/platelet-like morphology with ∼32 nm in size, respectively. activity was degradation methylene blue (MB) bacterial inactivation Escherichia coli (Gram-negative) Staphylococcus aureus (Gram-positive). experimental results showed that C-TNFs significantly enhanced compared to bare TNFs. It found TNF nanocatalysts exhibited superior against photodegradation MB (92.7%) antibacterial (85.6%) under sunlight irradiation. addition, reduced graphene oxide (RGO)-TNFs have good recycling ability are expected be promising candidate applications sunlight. Consequentially, higher RGO-TNF irradiation organic implies synthesis allows preparation efficient low-cost photocatalysts wide range environmental pollutants.