The purity of the crystalline phases in HKUST-1 was evaluated using PXRD (D8 Advance, Bruker) with an IµS 1-D detector. The instrument was operated at a voltage of 40 kV and a current of 40 mA, utilizing CuKα (λ=1.5418Å) radiation, at room temperature over the angular range of 2Θ = 5 ° -45 °, with a scanning rate of 2° per min.