TY  - JOUR
AU  - Mohanta, Bhabani Shankar
AU  - Das, Rita
AU  - Das, Nigamananda
PY  - 2023
DA  - 2023/10/13
TI  - Tungstophosphate Intercalated ZnAl Layered Double Hydroxide for Adsorptive and Visible Light Driven Photocatalytic Decolourisation of Organic Dyes
JO  - Catalysis Research
SP  - 025
VL  - 03
IS  - 04
AB  - Tungstophosphate (PW12O403-) intercalated ZnAl-Layered double hydroxide (ZnAl-PW12) was successfully synthesized through the rehydration of calcined LDH. Chemical analyses and characterizations by powder XRD, FT-IR, and Diffuse reflectance UV-Vis spectra confirmed the intercalation of PW12O403- ions equivalent to ~80% of the residual positive charge in the brucite layer. The efficiency of ZnAl-PW12 for decolourisation of four structurally different cationic/anionic dyes through simultaneous adsorption and photocatalysis under visible light irradiation was assessed. Under identical conditions, the photocatalytic efficiency of the ZnAl-PW12 catalyst was found to be much higher than that of calcined ZnAl-LDH, indicating the promoting effect of PW12O403- ion. Moreover, the loss of costly polyoxometallate (POM) could be avoided by intercalating the POM ion in the interlayer of LDH, which can facilitate the use of synthesized catalysts for repeated cycles.
SN  - 2771-490X
UR  - https://doi.org/10.21926/cr.2304025
DO  - 10.21926/cr.2304025
ID  - Mohanta2023
ER  -