Cu-supported composite catalysts consisting of metal–organic frameworks (UiO-66) and ZSM-5 zeolite (Cu/ZSM-5/UiO-66,

Cu–ZSM-5/UiO-66, and (Cu/ZSM-5)/UiO-66, respectively) were synthesized for the effi cient catalytic wet peroxide oxidation

(CWPO) of methylene blue (MB) wastewater. The Cu-active components were introduced by using incipient wetness

impregnation method and one-step hydrothermal synthesis method. The composite catalysts were characterized by SEM,

EDS mapping, XRD, and FT-IR. The catalytic activity can be aff ected by the ZSM-5 loading ratio and the Cu introduction

method. Results indicated that the Cu/ZSM-5/UiO-66 composite catalysts exhibited the best catalytic activity for the

CWPO degradation of MB wastewater ( X MB = 100%, X H2O2 = 89%) compared with Cu–ZSM-5/UiO-66 catalysts ( X MB = 89%,

X H2O2 = 25%) and (Cu/ZSM-5)/UiO-66 ( X MB = 90%, X H2O2 = 29%) which confi rmed the controllable activity of the catalysts.

No Cu leaching concentration was detected in the treated wastewater over the Cu–ZSM-5/UiO-66 and (Cu/ZSM-5)/UiO-66

catalysts which indicated the enhanced stability of the Cu species in the composite catalysts. The supported Cu composite

catalysts showed good catalytic activity and high stability for the CWPO of MB wastewater which have potential application

in dye wastewater treatment.