Glucose‐assisted preparation of n‐TiO₂‐P25/Ag: An efficient and robust photocatalyst for enhancing visible‐light photo‐oxidation of benzyl alcohol

Abstract

This paper describes the novel method of Ag deposition on the surface of TiO 2 , additionally investigates the photocatalytic properties of the new photocatalyst in the oxidation of benzyl alcohol under visible-light as well as sunlight. Silver nanoparticles were deposited on surface of titanium dioxide through the Tollens test method. Ag(0) has been prepared in situ by reduction of [Ag (NH 3 ) 2 ] + by glucose as a moderate and green reducing agent for the first time. The properties of n-TiO 2 -P25/Ag were investigated through X-ray powder diffraction (XRD), field emission scanning electron microscopy (FE-SEM), energy dispersive X-Ray (EDX), inductively coupled plasma optical emission spectrometry (ICP-OES), BET analysis, UV-visible/DRS techniques, and photoluminescence (PL) analysis.

Efficient Visible‐Light‐Driven Aromatic Alcohol Oxidation Using PI‐TiO2 Composite Photocatalyst

“…As shown in Table 2, Most of the previous reports were either lacking in selectivity or the conversion ratio [59,60] . Although some studies have shown that increasing catalyst dosage or prolonging reaction time can achieve high conversion, it undoubtedly increases the reaction cost [33,61–63] . This work can achieve a better reaction effect with less catalyst usage and shorter reaction time, which suggests that the reaction system using 15 wt %PI‐TiO 2 as a catalyst has better catalytic performance.…”

Facile synthesis of a nano titanium catalyst and its performance in selective oxidation of aromatic and pyridinic alcohols under visible light

“…For further comparison, this paper summarizes recent studies on photocatalytic benzyl alcohol oxidation over TiO 2 type catalysts under visible light irradiation, and these results are summarized in Table 2, which suggests that the prepared 150-TiO 2 exhibits excellent performance for the photocatalytic oxidation of benzyl alcohol into benzaldehyde, with high selectivity and conversion ratio under moderate reaction conditions. For example, noble metal loaded (AuNS@TiO 2 , n-TiO 2 -P25/Ag) 40,45 catalysis is not as efficient as 150-TiO 2 , but the catalyst fabrication cost is much higher than that of 150-TiO 2 , and non-metal element N-doped catalysts (T-400, TiO 2 @COF-3) 42,44 can achieve the results of this work only by increasing the amount of the catalyst or increasing the reaction time.…”