Au/TiO2 Reusable Photocatalysts for Dye Degradation

被引：60

作者：

Padikkaparambil, Silija ^{[1
]}

Narayanan, Binitha ^{[2
]}

Yaakob, Zahira ^{[1
]}

Viswanathan, Suraja ^{[1
]}

Tasirin, Siti Masrinda ^{[1
]}

机构：

[1] Univ Kebangsaan Malaysia, Fac Engn & Built Environm, Dept Chem & Proc Engn, Bangi 43600, Selangore, Malaysia

[2] Sree Neelakanta Govt Sanskrit Coll, Dept Chem, Pattambi 679306, Kerala, India

来源：

INTERNATIONAL JOURNAL OF PHOTOENERGY | 2013年 / 2013卷

关键词：

DOPED MESOPOROUS TITANIA; TIO2; NANOPARTICLES; ELECTRON DYNAMICS; TOTAL OXIDATION; THIN-FILMS; SILVER; GOLD; DIOXIDE; FABRICATION; CATALYSTS;

D O I：

10.1155/2013/752605

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：

Nanogold doped TiO2 catalysts are synthesized, and their application in the photodegradation of dye pollutants is studied. The materials are characterized using different analytical techniques such as X-ray diffraction, transmission electron microscopy, UV-visible diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy. The results revealed the strong interaction between the metallic gold nanoparticles and the anatase TiO2 support. Au doped systems showed very good photoactivity in the degradation of dye pollutants under UV irradiation as well as in sunlight. A simple mechanism is proposed for explaining the excellent photoactivity of the systems. The reusability studies of the photocatalysts exhibited more than 98% degradation of the dye even after 10 repeated cycles.

引用

页数：10

共 50 条

[1] In situ generated TiO2 over zeolitic supports as reusable photocatalysts for the degradation of dichlorvos
Gomez, Silvina
Leal Marchena, Candelaria
Renzini, Maria S.
Pizzio, Luis
Pierella, Liliana
[J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2015, 162 : 167 - 173
[2] TiO2 and ZnO as Advanced Photocatalysts for Effective Dye Degradation in Textile Wastewater
Glazar, Dominika
Simoncic, Barbara
[J]. TEKSTILEC, 2023, 66 (03) : 178 - 198
[3] Degradation of textile dye by solar light using TiO2 and ZnO photocatalysts
Neppolian, B
Sakthivel, S
Arabindoo, B
Palanichamy, M
Murugesan, V
[J]. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING, 1999, 34 (09): : 1829 - 1838
[4] Effects of Au nanoparticles on TiO2 in the photocatalytic degradation of an azo dye
Marta Mrowetz
Alberto Villa
Laura Prati
Elena Selli
[J]. Gold Bulletin, 2007, 40 : 154 - 160
[5] Effects of Au nanoparticles on TiO2 in the photocatalytic degradation of an azo dye
Mrowetz, Marta
Villa, Alberto
Prati, Laura
Selli, Elena
[J]. GOLD BULLETIN, 2007, 40 (02) : 154 - 160
[6] TiO2, TiO2/Ag and TiO2/Au photocatalysts prepared by spray pyrolysis
Haugen, Astri Bjornetun
Kumakiri, Izumi
Simon, Christian
Einarsrud, Mari-Ann
[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2011, 31 (03) : 291 - 298
[7] Stability and Synergistic Effect of Polyaniline/TiO2 Photocatalysts in Degradation of Azo Dye in Wastewater
Gilja, Vanja
Novakovic, Katarina
Travas-Sejdic, Jadranka
Hrnjak-Murgic, Zlata
Rokovic, Marijana Kraljic
Zic, Mark
[J]. NANOMATERIALS, 2017, 7 (12):
[8] Principles and mechanisms of photocatalytic dye degradation on TiO2 based photocatalysts: a comparative overview
Ajmal, Anila
Majeed, Imran
Malik, Riffat Naseem
Idriss, Hicham
Nadeem, Muhammad Amtiaz
[J]. RSC ADVANCES, 2014, 4 (70) : 37003 - 37026
[9] Nanostructured mesoporous Au/TiO2 for photocatalytic degradation of a textile dye: the effect of size similarity of the deposited Au with that of TiO2 pores
Ali Bumajdad
Metwally Madkour
Yasser Abdel-Moneam
Maged El-Kemary
[J]. Journal of Materials Science, 2014, 49 : 1743 - 1754
[10] Nanostructured mesoporous Au/TiO2 for photocatalytic degradation of a textile dye: the effect of size similarity of the deposited Au with that of TiO2 pores
Bumajdad, Ali
Madkour, Metwally
Abdel-Moneam, Yasser
El-Kemary, Maged
[J]. JOURNAL OF MATERIALS SCIENCE, 2014, 49 (04) : 1743 - 1754

← 1 2 3 4 5 →