Selective oxidation of alcohols in aqueous suspensions of rhodium ion-modified TiO2 photocatalysts under irradiation of visible light

2014 ◽  
Vol 16 (24) ◽  
pp. 12554-12559 ◽  
Author(s):  
Sho Kitano ◽  
Atsuhiro Tanaka ◽  
Keiji Hashimoto ◽  
Hiroshi Kominami

Benzyl alcohol was converted to benzaldehyde with 97% yield in aqueous suspensions of Rh3+/TiO2 photocatalysts under visible light irradiation.

2018 ◽  
Vol 8 (1) ◽  
pp. 268-275 ◽  
Author(s):  
Zhitong Wang ◽  
Yujie Song ◽  
Junhua Zou ◽  
Liuyi Li ◽  
Yan Yu ◽  
...  

Materials with different Au–Pd ratios bimetallic alloy nanoparticles supported on MgAl–LDH were prepared by an impregnation–reduction method and developed as photocatalysts for the selective oxidation of benzyl alcohol to benzaldehyde under visible light irradiation.


RSC Advances ◽  
2014 ◽  
Vol 4 (71) ◽  
pp. 37662-37668 ◽  
Author(s):  
Shinya Higashimoto ◽  
Yuta Nakai ◽  
Masashi Azuma ◽  
Masanari Takahashi ◽  
Yoshihisa Sakata

Photocatalyzed one-pot synthesis of imine from benzyl alcohol and nitrobenzene on the CdS–TiO2 under visible-light irradiation.


Catalysts ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 266 ◽  
Author(s):  
Xiujuan Yu ◽  
Haiying Li ◽  
Xueli Hao ◽  
Zhiying Zhang ◽  
Yan Wang ◽  
...  

A series of Ag/Pd/m-BiVO4 (monoclinic) bimetallic photocatalytic materials with different loading amounts and different mass ratios of Ag and Pd were synthesized by a hydrothermal method and an NaBH4 reduction method. The Ag/Pd/m-BiVO4 photocatalyst with a total Ag and Pd loading of 2 wt% and an Ag-to-Pd mass ratio of 2:1 can selectively oxidize benzyl alcohol to benzaldehyde under visible light irradiation, the conversion rate was up to 89.9%, and the selectivity was greater than 99%. The conversion rate on Ag/Pd/m-BiVO4 was higher than those on Ag/m-BiVO4 and Pd/m-BiVO4. The photocatalysts were characterized by X-ray powder diffraction (XRD), ultraviolet-visible diffuse reflection spectroscopy (UV-vis DRS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), photoluminescence (PL) spectroscopy, N2 adsorption-desorption isothermal curves (BET) and other means. The effects of different light wavelengths and light intensities were compared. Then, the effects of different alcohol derivatives on the reactions were explored. The cycle experiments proved that the Ag/Pd/m-BiVO4 photocatalyst had good light stability and thermal stability. In addition, the capturing experiment of active species shows that the selective oxidation of benzyl alcohol is mainly accomplished through the synergistic action of h+, e−, •OH and •O2−.


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