Enhanced catalytic activity of ZnO–CuO–Co₃O₄ composites achieved using a mechanochemical method for effective Fenton-like dye removal: the generation and catalytic mechanism of various superficial active sites

Abstract

Mechanochemical method is effective in manufacturing active sites of solid catalyst, which has great potential to improve the activity of the heterogenous catalyst in advanced oxidative processes of organic wastewater....

Acetate Ions Facilitated Immobilization of Highly Dispersed Transition Metal Oxide Nanoclusters in Mesoporous Silica

“…The Cu 2p XPS spectra of the samples II and III are presented in Figure 2F, where three distinct peaks at approximately 934, 943, and 955 eV correspond to Cu 2p 3/2 , Cu(II) satellite, and Cu 2p 1/2 , respectively. 31,36 For sample II, the Cu 2p 3/2 peak was deconvoluted into two peaks with binding energies of 933.7 and 936.0 eV. The peak at 933.7 eV unequivocally corresponded to Cu(II) 2p 3/2 in CuO, while the peak at 935.7 eV could be assigned to Cu(II) 2p 3/2 in Cu(OH) 2 .…”