Abstract
AbstractAntibiotic contamination in wastewater has become a matter of great concern due to the rapid industrial progress. The majority of antibiotic pollution in the environment occurs due to the waste from animal farms, aquaculture, sewage from antibiotic factories and hospitals. Therefore, it is vital to develop efficient and ecologically friendly photocatalysts for the degradation of such pollutants. In this paper, we report synthesis of ZnFe2O4/HAp‐Sn2+, a novel nanocomposite by three‐step processes using hydrothermal treatment followed by calcination. The as‐synthesized composite was characterized by Fourier transform infrared spectroscopy (FT‐IR), ultraviolet diffused reflectance spectroscopy (UV‐DRS), polycrystalline (or power) X‐ray diffraction (PXRD), scanning electron microscopy (SEM), energy dispersive X‐ray spectroscopy (EDS), transmission electron microscopy (TEM), vibrating sample magnetometer (VSM), thermogravimetric analysis (TGA) and X‐ray photoelectron spectroscopy (XPS). The as‐prepared composite exhibited excellent photocatalytic activity in the degradation of two antibiotics namely ofloxacin (OFL) and norfloxacin (NFL) under natural sunlight without use of any oxidizing or reducing agents. Scavenger studies were also carried out to ascertain the active radicals such as superoxide and hydroxyl radical during the photodegradation process.
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