A novel binary bismuth molybdate-perovskite type Strontium Niobate for efficient photocatalytic degradation of ciprofloxacin

Background: One effective strategy and popular topic to preserve ecosystems and prevent water contamination is the direct use of green solar energy to transform organic contaminants in industrial effluent into hazardous substances. Treatment of waste from pharmaceuticals is challenging due to its complexity and wide range of pollutants. Methods: This study used a unique hydrothermal method to create a Bi2MoO6-Sr2Nb2O7 nanocatalyst. The photodegradation of Ciprofloxacin (CIP) in the presence of visible light was used to examine the photocatalytic performance of these materials. The obtained bare, composite photocatalysts were extensively characterized using a variety of physicochemical approaches. The structural and phase characteristics of the Bi2MoO6Sr2Nb2O7nanohybrids were identified by XRD and FT-IR spectra. The binding and distribution of the produced catalyst's rod- and plate-like structure were visible in FESEM and HR-TEM images. The presence of Bi2MoO6 decreased the composite's optical absorbance and bandgap energy, which was examined using UV-DRS spectroscopy. The band gap value is reduced and shifted to the visible area by adding Bi2MoO6. Significant Findings: The photodegradation of CIP, the Bi2MoO6-Sr2Nb2O7 catalyst demonstrated better photocatalytic activity; 96.3% of CIP was broken down under visible light. The Photoluminescence (PL) and transient photocurrent tests support the Bi2MoO6-Sr2Nb2O7 catalyst's improved photo-induced charge separation efficiency. According to the results of the scavenger test, h+ and center dot O2 were the key factors in the CIP degradation. Additionally, the Bi2MoO6-Sr2Nb2O7 catalyst showed exceptional reusability and durability in four sequential cycles. The Bi2MoO6-Sr2Nb2O7nanohybrids are expected to be used as photocatalysts for restoring the environment and converting light energy. This study presents an innovative method for creating a potent photocatalyst for pollutant degradation.