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Polyoxometalate Intercalated MgAl-Layered Double Hydroxide for Degradation of Malachite Green
 
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1
Graduate School of Mathematics and Natural Sciences, Faculty of Mathematics and Natural Sciences, Universitas Sriwijaya, Jl. Palembang Prabumulih Km.32 OganIlir 30662, Indonesia
2
Research Center of Inorganic Materials and Coordination Complexes, Faculty of Mathematics and Natural Sciences, Universitas Sriwijaya, Jl. Palembang Prabumulih Km.32 OganIlir 30662, Indonesia
3
Department of Pharmacy, Faculty of Mathematics and Natural Sciences, Universitas Sriwijaya, Jl. Palembang Prabumulih Km.32 OganIlir 30662, Indonesia
CORRESPONDING AUTHOR
Aldes Lesbani   

Universitas Sriwijaya, Jl. Padang Selasa No. 524 Ilir Barat 1, Palembang 30139, Indonesia
 
Ecol. Eng. Environ. Technol. 2023; 2:109–119
 
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ABSTRACT
Improving the selectivity of photocatalysis of LDH pristine (MgAl-LDH) and LDH composite (MgAl-SiW12O40] and MgAl-[PW12O40]) was synthesized and used for degraded malachite green (MG). The effects of the amount of catalyst, pH value and times of reaction on degradation performance were discussed. MG degraded better composites than LDH pristine. The results indicated that MgAl-LDH was successfully synthesized by showed the peak diffractions at angles 10.39°(003), 20.17°(006), and 34.8°(009). Both kinds of attained MgAl-[SiW12O40] and MgAl-[PW12O40] had typical structure of LDH that proved by appeared diffraction at 2θ angles 7.73°, 28.6°, 35.6° for MgAl-[PW12O40] and at 2θ angles 8.61°, 24.27°, 34.96° and 66.34° for MgAl-[SiW12O40]. The FTIR result indicates materials that used for fifth regeneration, which confirmed the LDH composite structure. The photodegradation activity of MG for pristine MgAl LDH (56.1%), composites MgAl-Pw (84.6%) and MgAl-Si (87.8%), respectively. The successful ability of photodegradation process by the percentage of degradation on material LDH-polyoxometalate composite by showed the increasing of photodegradation catalytic and the regeneration ability of LDH pristine.