Synergistic effects of electron shuttle AQS and Alcaligenes faecalis on photocatalytic removal of U(VI)

• Published in: Journal of radioanalytical and nuclear chemistry Vol. 322; no. 2; pp. 731 - 742
• Main Authors: Chen, Mulan, He, Miao, Liu, Mingxue, Dong, Faqin, Wei, Hongfu, Nie, Xiaoqin
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.11.2019; Springer; Springer Nature B.V
• Subjects: Analysis; Chemistry; Chemistry and Materials Science; Diagnostic Radiology; Electron transfer; Electrons; Energy consumption; Hadrons; Hazardous waste management industry; Heavy Ions; Inorganic Chemistry; Microorganisms; Nuclear Chemistry; Nuclear Physics; Photocatalysis; Physical Chemistry; Radioactive waste disposal; Radioactive wastes; Uranium; Waste management; Photocatalytic removal; Uranium; Synergistic effect; Electron shuttle
• ISSN: 0236-5731; 1588-2780
• DOI: 10.1007/s10967-019-06753-w

Photocatalytic removal of U(VI) has attracted much attention due to its advantages such as no secondary pollution and less energy consumption. Synergistic removal of U(VI) by Alcaligenes faecalis and exogenous electron shuttle AQS (anthraguinone-2-sulfonate) under illumination condition was investigated. The results show that 0.16 g L −1 AQS can apparently accelerate the electron transfer and promote the growth of A. faecalis . The reduction rate of U(VI) enhances by 17.50%. The maximum removal efficiency of U(VI) reaches up to 80.7%. These results suggest that proper exogenous electron shuttles can accelerate photocatalytic removal of U(VI) cooperating with microorganisms.