RESEARCH ON SYNTHESIS ZnO-CeO2 CATALYST TO TREAT BISPHENOL A IN WATER

Abstract

This paper studied the synthesis of ZnO-CeO2 catalyst by hydrothermal
method at 90oC and 24h. The sample after hydrothermal was filtered, washed,
dried, and calcined at 400oC, then used for treating bisphenol A (BPA) in the
aqueous medium. The synthesized samples were characterized by physical
methods such as DTA-TG, BET, SEM, and XRD to determine morphology,
structure, size, and surface area. The analysis results showed that the ZnO-CeO2
nanoparticles are formed relatively homogeneously, with a porous structure at
the pore size of about 20 ÷ 40nm, the specific surface area was about 48.72m2/g.
The ZnO-CeO2 catalyst showed the high ability in photodegradation of methylene
blue under UV 40W light and sunlight, exhibiting a high removal efficiency of
BPA, the adsorption and degradation of up to 64% in 100 min.