A new insight into the photocatalytic reduction of 4-nitroaniline to p-phenylenediamine in the presence of alcohols

Wu, Weiming; Wen, Linrui; Shen, Lijuan; Liang, Ruowen; Yuan, Rusheng; Wu, Ling

doi:10.1016/j.apcatb.2012.10.025

Cited by 53 publications

(26 citation statements)

References 19 publications

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“…The crystal structures of samples were determined by using a Bruker D8 Advance X-ray diffractometer at 40 Ni-filtered Cu K␣ radiation in the 2Â ranging from 20 • to 80 • with a scan rate of 0.02 • /s. The diffuse reflectance spectroscopy (DRS) of the samples were characterized by a Varian Cary 500 Scan UVvis-NIR spectrometer with BaSO 4 as the background ranging from 200 to 800 nm.…”

Section: Characterizationmentioning

confidence: 99%

“…As is known, TiO 2 has shown great potential as an ideal and powerful photocatalyst for various significant reactions. It has been reported that TiO 2 is also active for the photocatalytic reduction of nitro aromatics [37,[39][40][41]. However, the possible re-oxidation of amino group of amino aromatics and the shortage of UV light-responsive for TiO 2 become the obstacles to its further application [41].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A facile synthesis of CdSe quantum dots-decorated anatase TiO2 with exposed {0 0 1} facets and its superior photocatalytic activity

Wang

Xiao

Fang

et al. 2016

Applied Catalysis B: Environmental

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Section: Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A facile synthesis of CdSe quantum dots-decorated anatase TiO2 with exposed {0 0 1} facets and its superior photocatalytic activity

Wang

Xiao

Fang

et al. 2016

Applied Catalysis B: Environmental

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“…Wu et al (2013) investigated the photocatalytic conversion of p-nitroaniline to p-phenylenediamine over TiO 2 , ZnO, PbBi 2 Nb 2 O 9 and CdS in the presence of methanol. As may be expected, TiO 2 and ZnO showed photocatalytic activities for the photoreduction of 4-nitroaniline.…”

Section: Reduction Of Nitroaromatic Compoundsmentioning

confidence: 99%

Photosynthetic Routes to Organic Compounds

Gaya

2013

Heterogeneous Photocatalysis Using Inorganic Semiconductor Solids

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The potentials of semiconductor photocatalysis in organic synthesis cannot be overemphasised. By far, many organic substances have been successfully synthesised at laboratory scale. Some revolutionary features of these photocatalytic routes include greenness and the ability to proceed in one pot. Herein, an overview of the routes and suggested mechanisms to important functional groups is given, and where necessary, contrast with the conventional routes is made.The potentials of semiconductor photocatalysis in organic synthesis cannot be overemphasised. By far, many organic substances have been successfully synthesised at laboratory scale. Some revolutionary features of these photocatalytic routes include greenness and the ability to proceed in one pot. Herein, an overview of the routes and suggested mechanisms to important functional groups is given, and where necessary, contrast with the conventional routes is made.

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“…Pruden et al 3 found that aldehydes could be reduced to their corresponding alcohols using TiO 2 as photocatalyst through two electrons transferring from the excited TiO 2 followed by protonation. 17,18 Ferry et al 17 pointed out that the alcohol radicals play no role in the observed reduction reaction for nitrocompounds. In addition to photoelectron reduction, alcohol radicals may be another reductive species.…”

Section: Introductionmentioning

confidence: 99%

“…In addition to photoelectron reduction, alcohol radicals may be another reductive species. 18 However, only a few theoretical studies have been reported about the research of electron reduction mechanism and these mainly focus on the catalyst surface reaction. 17,18 Ferry et al 17 pointed out that the alcohol radicals play no role in the observed reduction reaction for nitrocompounds.…”

Section: Introductionmentioning

confidence: 99%

Theoretical study on catalyzed selective photoreduction mechanism for 4-bromobenzaldehyde in two different solvents

Huang

Peng

et al. 2015

Phys. Chem. Chem. Phys.

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The density functional theory (M06-2X) method has been employed to investigate the selective photoreduction mechanism in ethanol and acetonitrile solvents for 4-bromobenzaldehyde (4-BBA) reduced by photoelectrons, which are produced by illumination of TiO2. The solvent effects of ethanol and acetonitrile are considered by the SMD solvent model. The computational results show that the reaction is selective in different solvents. In ethanol solvent, the carbonyl reduction process is favored both in thermodynamics and kinetics, and 4-BBA could be reduced to the product, 4-bromobenzyl alcohol. However, owing to it not being a good proton donor solvent, the debromination reduction process in acetonitrile is favored. These results are consistent with the experimental observations.

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A new insight into the photocatalytic reduction of 4-nitroaniline to p-phenylenediamine in the presence of alcohols

Cited by 53 publications

References 19 publications

A facile synthesis of CdSe quantum dots-decorated anatase TiO2 with exposed {0 0 1} facets and its superior photocatalytic activity

A facile synthesis of CdSe quantum dots-decorated anatase TiO2 with exposed {0 0 1} facets and its superior photocatalytic activity

Photosynthetic Routes to Organic Compounds

Theoretical study on catalyzed selective photoreduction mechanism for 4-bromobenzaldehyde in two different solvents

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