Pompon-like Bi2WO6 hierarchical nanostructures: preparation and their application in photodegradation of norfloxacin and difloxacin hydrochloride

Pompon-like Bi 2 WO 6 hierarchical nanostructures (BWO HNs) were obtained through a simple hydrothermal synthesis method. XRD, SEM, TEM, UV–vis spectroscopy, and N 2 adsorption–desorption have been used to measure their microstructure and physicochemical properties. The photocatalytic properties of the products have been tested by photodegradation of norfloxacin (NOR) and difloxacin hydrochloride (DFL). The pompon-like BWO HNs samples exhibited excellent photoactivity in antibiotic removal, and as much as 97.67% of NOR and 93.87% of DFL could be efficiently degraded in 120 min. In addition, the photocatalytic activity of the BWO HNs samples showed slight changes after five consecutive cycles, displaying good stability and good potential application value.