Synthesis of nitrosobenzene via photocatalytic oxidation of aniline over MgO/TiO2 under visible light irradiation

被引：25

作者：

Chen, Jinsong ^{[1
]}

Xiong, Jinhua ^{[1
]}

Song, Yujie ^{[1
]}

Yu, Yan ^{[2
]}

Wu, Ling ^{[1
]}

机构：

[1] Fuzhou Univ, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350116, Fujian, Peoples R China

[2] Fujian Prov Univ, Fuzhou Univ, Key Lab Ecomat Adv Technol, Fuzhou 350116, Fujian, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2018年 / 440卷

基金：

中国国家自然科学基金;

关键词：

MgO/TiO2; Nitroso benzene synthesis; Surface complex formation; Lattice oxygen; Oxygen speciesradicals; Visible light; HYDROGEN-PEROXIDE; MOLECULAR-OXYGEN; AROMATIC-AMINES; TIO2; P25; DEGRADATION; MECHANISMS; REDUCTION; EFFICIENT;

D O I：

10.1016/j.apsusc.2018.01.228

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

MgO/TiO2 (Degussa P25 TiO2) composites were prepared and were used as visible-light-driven photocatalysts for the oxidation of aniline to nitrosobenzene under oxygen atmosphere. The typical sample with 5 wt% MgO loaded P25 (MP5) shows comparable photocatalytic activity with 2 wt% Pt/P25. The analyzed results of XPS indicate that the lattice oxygen in the MP5 possess higher electron density than those in P25. The electron-rich lattice oxygen, formed as a result of MgO loaded, would facilitate the deprontonation of aniline. A new peak at 3310 cm(-1) was observed in in-situ FTIR spectrum for aniline adsorbed on the sample MP5, suggesting that anilino species were formed. These species may be produced via the deprontonation of aniline and result in the formation of the surface complexes. Further XPS studies for aniline adsorbed on the catalysts also indicate the existence of the surface complexes. Under visible light irradiation, the electrons may excite from the surface complexes and initiate the oxidation processes. Finally, speculated photocatalytic processes for the oxidation of aniline to nitrosobenzene were proposed at molecular level. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：1269 / 1276

页数：8

共 36 条

[1] The nitroso ene reaction: A regioselective and stereoselective allylic nitrogen functionalization of mechanistic delight and synthetic potential [J].

Adam, W ;

Krebs, O .

CHEMICAL REVIEWS, 2003, 103 (10) :4131-4146

[2] Rutile titanium dioxide prepared by hydrogen reduction of Degussa P25 for highly efficient photocatalytic hydrogen evolution [J].

Amano, Fumiaki ;

Nakata, Masashi ;

Yamamoto, Akira ;

Tanaka, Tsunehiro .

CATALYSIS SCIENCE & TECHNOLOGY, 2016, 6 (14) :5693-5699

[3] Room-Temperature Synthesis of Iron-Doped Anatase TiO2 for Lithium-Ion Batteries and Photocatalysis [J].

Andriamiadamanana, Christian ;

Laberty-Robert, Christel ;

Sougrati, Moulay T. ;

Casale, Sandra ;

Davoisne, Carine ;

Patra, Snehangshu ;

Sauvage, Frederic .

INORGANIC CHEMISTRY, 2014, 53 (19) :10129-10139

[4] IDENTIFICATION OF FREE-RADICALS IN MYOCARDIAL-ISCHEMIA REPERFUSION BY SPIN TRAPPING WITH NITRONE DMPO [J].

ARROYO, CM ;

KRAMER, JH ;

DICKENS, BF ;

WEGLICKI, WB .

FEBS LETTERS, 1987, 221 (01) :101-104

[5] Overview on oxidation mechanisms of organic compounds by TiO2 in heterogeneous photocatalysis [J].

Augugliaro, Vincenzo ;

Bellardita, Marianna ;

Loddo, Vittorio ;

Palmisano, Giovanni ;

Palmisano, Leonardo ;

Yurdakal, Sedat .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS, 2012, 13 (03) :224-245

[6] Fe-g-C3N4-Catalyzed Oxidation of Benzene to Phenol Using Hydrogen Peroxide and Visible Light [J].

Chen, Xiufang ;

Zhang, Jinshui ;

Fu, Xianzhi ;

Antonietti, Markus ;

Wang, Xinchen .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (33) :11658-+

[7] Heterogeneous photocatalytic organic synthesis: state-of-the-art and future perspectives [J].

Friedmann, Donia ;

Hakki, Amer ;

Kim, Hyejin ;

Choic, Wonyong ;

Bahnemannd, Detlef .

GREEN CHEMISTRY, 2016, 18 (20) :5391-5411

[8] First observation of visible light photocatalytic activity of carbon modified Nb2O5 nanostructures [J].

Ge, Suxiang ;

Jia, Huimin ;

Zhao, Hongxiao ;

Zheng, Zhi ;

Zhang, Lizhi .

JOURNAL OF MATERIALS CHEMISTRY, 2010, 20 (15) :3052-3058

[9] Copper-Mediated [3+2] Annulation of 3-N-Hydroxyallylamines with Nitrosoarenes [J].

Ghorpade, Satish ;

Jadhav, Prakash D. ;

Liu, Rai-Shung .

CHEMISTRY-A EUROPEAN JOURNAL, 2016, 22 (09) :2915-2919

[10] Room temperature selective oxidation of aniline to azoxybenzene over a silver supported tungsten oxide nanostructured catalyst [J].

Ghosh, Shilpi ;

Acharyya, Shankha S. ;

Sasaki, Takehiko ;

Bal, Rajaram .

GREEN CHEMISTRY, 2015, 17 (03) :1867-1876

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