1 research outputs found
Fast and efficient piezo/photocatalytic removal of methyl orange using SbSI nanowires
Piezocatalysis is a novel method that can be applied for degradation of organic pollutants in
wastewater. In this paper, ferroelectric nanowires of antimony sulfoiodide (SbSI) have been fabricated
using a sonochemical method. Methyl orange (MO) was chosen as a typical pollutant, as it is widely
used as a dye in industry. An aqueous solution of MO at a concentration of 30 mg/L containing
SbSI nanowires (6 g/L) was subjected to ultrasonic vibration. High degradation e ciency of 99.5%
was achieved after an extremely short period of ultrasonic irradiation (40 s). The large reaction rate
constant of 0.126(8) s1 was determined for piezocatalytic MO decomposition. This rate constant is
two orders of magnitude larger than values of reaction rate constants reported in the literature for the
most e cient piezocatalysts. These promising experimental results have proved a great potential of
SbSI nanowires for their application in environmental purification and renewable energy conversion