Synthesis and application of Bi₂WO₆for the photocatalytic degradation of two typical fluoroquinolones under visible light irradiation

Abstract

Bismuth tungstate was successfully synthesized in a shorter duration by a method combining ultrasonic solvothermal treatment and high-temperature calcination.

Characterization and Evaluation of Layered Bi2WO6 Nanosheets as a New Antibacterial Agent

“…No potentiation of the action of aminoglycosides associated with Bi 2 WO 6 nanosheets against Gram-positive and Gramnegative strains was stated, regardless of LED wavelength. Thus, the strong antagonistic effects observed when aminoglycosides were used in combination with Bi 2 WO 6 nanosheets under visible light irradiation against Gram-positive and Gram-negative strains seem to be related to the high photocatalytic potential of bismuth tungstate in degrading organic compounds [8,9]. Antibiotics 2021, 10, x FOR PEER REVIEW 7 of 11…”

“…Bi 2 WO 6 has shown interesting photochemical stability and reusability, being potentially useful for environmental treatment purposes, while also exhibiting photocatalytic degradation of Erichrome Black T (EBT) organic dye [ 8 ]. Furthermore, Bi 2 WO 6 exhibited photocatalytic activity for degrading norfloxacin and enrofloxacin under visible light irradiation, meaning its feasible application along with fluoroquinolone antibiotics [ 9 ]. In a study, Aurivillius oxide Bi 2 WO 6 was applied as an effective visible light-driven antibacterial photocatalyst for Escherichia coli’s inactivation, where neither visible light without the photocatalyst nor Bi 2 WO 6 in the dark revealed bactericidal effects.…”

Photodegradation of Synozol Red HF-6BN on g-C3N4/Halloysite nanocomposites

“…In addition, this method has other advantages as consuming less energy, ease of use and less toxic [3]. Most photocatalytic materials are based on metal oxides, typically TiO 2 [4], Fe 2 O 3 [4], CdS [5], Bi 2 WO 6 [6] -these substances are active only under UV light, accounting for only 5% of solar energy. Furthermore, metal oxides cannot respond to the sustainability requirement due to their high cost, and scarcity [7].…”

Synthesis and Characterization of Heterostructure Pd/Bi2WO6 Nanocomposites with Enhanced Properties of Visible-Light-Driven Photocatalyst

“…The results indicate that heterostructure Pd/Bi 2 WO 6 nanocomposites absorbed visible light which can lead to generate more charge carriers and to improve photocatalytic activity[26][27][28][29]. Figure6bshows the plot of (αhν) 2 versus hν of pure Bi 2 WO 6 and 10% Pd/Bi 2 WO 6 samples by Kubelka-Munk equation[24, 26]. The band gaps of pure Bi 2 WO 6 and 10% Pd/Bi 2 WO 6 samples are 2.48 eV and 2.54 eV, respectively.The visible-light-driven photocatalytic performance of pure Bi 2 WO 6 and Bi 2 WO 6 doped with different contents of Pd was investigated for photodegradation of RhB.…”

“…visible region due to the intrinsic energy gap of Bi 2 WO 6[24][25][26]. Comparing to Bi 2 WO 6 , 10% Pd/Bi 2 WO 6 shows higher absorption in visible light because of the localized SPR effect of Pd nanoparticles supported on top of Bi 2…”