Photocatalytic Degradation of Malachite Green by NiAl-LDH Intercalated Polyoxometalate Compound

Composites based on layered double hydroxide with polyoxometalate K3[?-PW12O40] and K4[?-SiW12O40] were synthesized to form NiAl-[SiW12O40] NiAl-[PW12O40]. The materials characterized by XRD, FTIR, SEM, UV-DRS then applied as a photocatalyst degrade MG. effects of catalyst loading, pH value, contact times photodegradation performance carried out in this study. results indicated that NiAl-LDH was successfully showing the peak diffractions at angles 11.63°, 23.13°, 35.16°. Both kinds attained NiAl-[PW12O40] had typical structures LDH proved appearing diffraction 2? 10.76°, 26.59°, 30.8°, 63.11° for 8.26°, 11.34°, 29°, 35.1° NiAl-[SiW12O40]. used fifth regeneration which still presents characteristics structure. first time decrease band gap NiAl pristine than composite from 4.76 eV 3.22 3.78 respectively, presented DR-UV analysis. shows improved degradation photocatalytic comparison pristine. It present %degradation MG performances 68.94% LDH, 84.51% NiAl-[PW12O40]), 88.91% percentage indicates LDH-polyoxometalate has succeeded increasing ability catalytic Copyright © 2022 Authors, Published BCREC Group. This is an open access article under CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).