Ternary Layered Double Hydroxides (LDHs) Based on Co‐, Cu‐Substituted ZnAl for the Design of Efficient Photocatalysts

Abstract

Co-, Cu-substituted ZnAl ternary layered double hydroxides (LDHs) were synthesized and explored as efficient photocatalysts for dye degradation. LDH materials were fully characterized with various methods including elemental analysis, X-ray diffraction, infrared spectroscopy, Raman spectroscopy, and transmission electron microscopy, which revealed that LDH materials were well crystallized without any amorphous phase as impurity. In addition, the plates of LDH were well dispersed, one plate being easily distinguished from another plate, and their size could also be controlled by varying the Co, Cu substitution ratio. As an application, the adsorption characteristics and photocatalytic degradation of orange II, a model pollutant, were investigated. In particular, Co-substituted [a]

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