Study on Phase Stability of Mn (IV) Doped Bismuth Vanadate and its Visible - Light Photocatalytic Activity for Degradation of Organic Dye

Authors : Najwa Obaid; Niyazi A. S. Al–Areqi

Volume/Issue : 2nd ICTSA-2022

Google Scholar :

Scribd :


A layered Aurivillius–perovskite type BIMNVOX compound with a general formula, Bi2Mn was developed as an effective photocatalyst for degradation of organic dyes. A series of BIMNVOX.x catalysts in the composition range 0.20 were successfully prepared using the standard solid– state reaction and characterized using X–ray diffraction (XRD), differential thermal analysis (DTA), UV–vis spectrophotometry and adsorption measurements. Then, the photocatalytic activities of synthesized catalysts were investigated for the first time through the photodegradation of crystal violet, CV dye in aqueous solution under visible light irradiation. Adsorption efficiency and photocatalytic activity of BIMNVOX catalysts were correlated well with the variation in phase crystal structures stabilized at room temperature as a function of composition. The stabilized β–BIMNVOX phase in the orthorhombic crystal system, space group Acam exhibited the best photocatalytic performance, though broadening band– gap energy. This can be attributed to their higher specific surface area, higher oxygen –vacancy concentration in the perovskite vanadate layers. In addition, the possible photocatalytic degradation mechanism of aqueous CV dye was clearly proposed.


Paper Submission Last Date
30 - April - 2024

Paper Review Notification
In 1-2 Days

Paper Publishing
In 2-3 Days

Never miss an update from Papermashup

Get notified about the latest tutorials and downloads.

Subscribe by Email

Get alerts directly into your inbox after each post and stay updated.

Subscribe by RSS

Add our RSS to your feedreader to get regular updates from us.