Insights from Crystal Size and Band Gap on the Catalytic Activity of Monoclinic BiVO4

Abstract

Abstract-Monoclinic

Electronic and optical competence of TiO2/BiVO4 nanocomposites in the photocatalytic processes

“…Among the Raman active modes, the peaks at 158 cm −1 and 523.3 cm −1 are assigned to the E g (147 cm −1 ) and A1g (519 cm −1 ) modes respectively, along with a 645.9 cm −1 (640 cm −1 ) signal, all from TiO 2 anatase 38 . On the other hand, the bands located at 346, 375, and 846 cm −1 closely match with the reference by Thalluri et al for m-BiVO 4 (340,375 and 830.4 cm −1 ) 42 observed the shifts for the m-BiVO 4 at 340, 375 and 830.4 cm −121 .…”

Synthesis of Zn3(VO4)2/BiVO4 heterojunction composite for the photocatalytic degradation of methylene blue organic dye and electrochemical detection of H2O2

“…S1 (ESI arise from Bi-V vibration, and the peak at 815 cm À1 is attributed to V-O vibration. 31,33,34 Raman spectrum of the product is in good agreement with the crystal structure of Zn 3 (VO 4 ) 2 /BiVO 4 . Fig.…”

Insight into the PEC and interfacial charge transfer kinetics at the Mo doped BiVO4photoanodes

“…All these Raman band assignments for the present materials correspond well with the literature reports of similar materials. [70][71][72][73][74][75] It has been observed that there is a blue shi in the most intense peak from 825.50 cm À1 to 829.54 cm À1 in materials from SBM0 to SBM3 then red shiing is observed in SBM5 to SBM7. The change of vibrational frequency of V-O can be explained in terms of metal-oxygen bond length and strength.…”

“…The modes at 213.23 cm À1 and 126.58 cm À1 are assigned as rotational and translational modes respectively. [70][71][72][73][74][75] The weak bands at 867.50 cm À1 and 374.70 cm À1 are assigned to the n s (MoO 4 ) and d (MoO 4 ) respectively. The band corresponds to the n as (MoO 4 ) might be covered with 825.50 cm À1 peak.…”