Synergistic activation of sulfate by TiO2 nanotube arrays-based electrodes for berberine degradation: Insight into pH-dependant ORR-strengthened reactive radicals co-generation mechanism

Unusual magnetic behavior of TiO2-doped CuFeO2 crystals (CuFe1−xTixO2) grown by the optical floating zone method

“…4a) have been assigned to Ti 3+ ions. 28 Unfortunately, the lack of intensity from the Ti component in the spectra with lower doping levels prevents us from further discussion of Ti redox processes in these samples. Nevertheless, the XRD results in section 3.1 support the reduction of Ti 4+ to Ti 3+ at the higher Ti doping levels.…”

Single-Atom Copper Promotes Efficient Generation of Hydroxyl Radicals under Alkaline Circumstances in a Photoelectrochemical Oxygen Reduction Process

“…Generally, high pH in the basic range could promote the decomposition of H 2 O 2 . Above pH 9, H 2 O 2 can be decomposed markedly with increasing pH due to the formation of HO 2 – in the base H 2 O 2 solution . Thus, the decrease of H 2 O 2 at pH 11 further resulted in the decrease of HO • generation.…”

“…Above pH 9, H 2 O 2 can be decomposed markedly with increasing pH due to the formation of HO 2 − in the base H 2 O 2 solution. 42 Thus, the decrease of H 2 O 2 at pH 11 further resulted in the decrease of HO • generation. Therefore, the highest generation efficiency of HO • was obtained at pH = 9.…”

Coupling effects between metal–organic framework derivatives and oxygen-deficient TiO2 nanotubes: identified charge-transfer processes and photoelectric synergistic effect

“…Notably, the reduction wave of the Ar-ZrO 2 /Ti 2 O 3 -TNTs was shifted negatively from −0.146 to −1.004 V, indicating that the faradaic reaction occurred and the interfacial charge transfer was improved. 39 Electrochemical impedance spectra (EIS) Nyquist plots can describe the interface charge-transfer capability of photoelectrodes. As shown in Fig.…”