Tandem CQDs loaded triple metal oxide interface-reinforced built-in electric field for a wide-spectral-responsive photocatalyst

Journal Article

2023

Published in: https://doi.org/10.1016/j.colsurfa.2023.132417

https://doi.org/10.1016/j.colsurfa.2023.132417

Focusing at efficient Cefixime (CEFX) removal, a delicate ultrathin-Bi2WO6 (UBWO) stacked quasi-CoFe2O4
binanosheets (BT) were meticulously designed and integrated with spherical MnWO4 (MWO) and carbon
quantum dots (CQDs), forming a n-p-n CQDs@MWO/CFO:UBWO nanohybrid. XRD, XPS, TEM and other systematic
analysis demonstrated the vertically aligned layer by layer assembly of UBWO:CFO BT, and a shift in the
highly exposed (211) facet of UBWO after nanohybrid formation as well as large surface area (323.33 m2/g) was
achieved. UV–vis DRS, PL and EIS proved high separation efficiency, prolonged life time and photogeneration of
more charge carriers with absorption of full light spectrum. As expected, the optimized 5 %CQDs@0.25MWO/
0.1CFO:UBWO nanohybrid displayed excellent visible light absorption and outstanding CEFX photodegradation

• Magazine \ Newspaper: Colloids and Surfaces A: Physicochemical and Engineering Aspects