Correlation study between photo-degradation and surface adsorption properties of phenol and methyl orange on TiO2 Vs platinum-supported TiO2

被引：53
|
作者：
Murcia, J. J. [1 ]
Hidalgo, M. C. [1 ]
Navio, J. A. [1 ]
Arana, J. [2 ]
Dona-Rodriguez, J. M. [2 ]
机构：
[1] Univ Seville, CSIC, ICMS, Seville 41092, Spain
[2] Univ Las Palmas Gran Canaria, CIDIA Dept Quim, Las Palmas Gran Canaria 35017, Spain
来源：
APPLIED CATALYSIS B-ENVIRONMENTAL | 2014年 / 150卷
关键词：
Pt-TiO2; FT-IR; Phenol; Methyl orange; Substrate adsorption; IMPROVED PHOTOCATALYTIC ACTIVITY; OXIDATION; ETHANOL; TITANIA; MINERALIZATION; CATALYSTS; ACETONE; SIZE; GAP; IR;
D O I：
10.1016/j.apcatb.2013.12.010
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：
Adsorption of phenol and methyl orange on the surface of TiO2 and Pt-TiO2 photocatalysts was investigated by FT-IR spectroscopy. It was found that platinum plays an important role in the adsorption properties of the studied substrates on TiO2. Platinum deposits modified the phenol-photocatalyst interaction providing new adsorption sites on TiO2 surface. On Pt-TiO2 photocatalysts, phenol mainly interacts via formation of adsorbed phenolates species. It was also found that the adsorption of methyl orange on titania and Pt-TiO2 photocatalysts occurs via interaction of the azo group with surface Ti4+. Pt photodeposition significantly increases the TiO2 photoreactivity in phenol and methyl orange photo-degradation; however, this increase depends on the properties of the Pt deposits. Moreover, it was observed that platinum content is the main factor determining the substrate-photocatalyst interaction and therefore the Pt-TiO2 photocatalytic performance. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：107 / 115
页数：9
相关论文
共 50 条
  • [1] Transition metal loaded TiO2 for phenol photo-degradation
    Dobrosz-Gomez, I.
    Gomez-Garcia, M. A.
    Lopez Zamora, S. M.
    GilPavas, E.
    Bojarska, J.
    Kozanecki, M.
    Rynkowski, J. M.
    COMPTES RENDUS CHIMIE, 2015, 18 (10) : 1170 - 1182
  • [2] Study on TiO2 photo-degradation of pollutants in water
    Xue, X.D.
    Jin, Q.T.
    Zhongguo Jishui Paishui/China Water & Wastewater, 2001, 17 (06):
  • [3] Adsorption and photocatalytic degradation of methyl orange by TiO2 nanoparticles
    Zhao, Xiao-Lan
    Zhang, Peng
    Xu, Rui-Fen
    Hu, Wei-Kang
    2003, Beijing University of Chemical Technology (30):
  • [4] Comparative study of low-index {101}-TiO2, {001}-TiO2, {100}-TiO2 and high-index {201}-TiO2 on glyphosate adsorption and photo-degradation
    Yang, Ying
    Deng, Qinzu
    Zhang, Yongli
    CHEMICAL ENGINEERING JOURNAL, 2019, 360 : 1247 - 1254
  • [5] Photocatalytic Degradation of Methyl Orange on Y Zeolite Supported TiO2
    Wang, Hong
    Yang, Bo
    Zhang, Wenjie
    MATERIALS AND MANUFACTURING TECHNOLOGY, PTS 1 AND 2, 2010, 129-131 : 733 - 737
  • [6] Phenol photo-degradation over TiO2and Mo/TiO2 catalysts. The response surface methodology as optimization tool
    Foto-degradación de fenol sobre catalizadores de TiO2 y Mo/TiO2. La metodología de superficie de respuesta como herramienta de optimización
    1600, Centro de Informacion Tecnologica (25):
  • [7] Surface state studies of TiO2 nanoparticles and photocatalytic degradation of methyl orange in aqueous TiO2 dispersions
    Ruan, SP
    Wu, FQ
    Zhang, T
    Gao, W
    Xu, BK
    Zhao, MY
    MATERIALS CHEMISTRY AND PHYSICS, 2001, 69 (1-3) : 7 - 9
  • [8] Methyl Orange Photo-Degradation by TiO2 in a Pilot Unit under Different Chemical, Physical, and Hydraulic Conditions
    Petrella, Andrea
    Spasiano, Danilo
    Cosma, Pinalysa
    Rizzi, Vito
    Race, Marco
    Mascolo, Maria Cristina
    Ranieri, Ezio
    PROCESSES, 2021, 9 (02) : 1 - 13
  • [9] Mechanism and performance of TiO2 composite photocatalysts for photo-degradation of methyl-orange in highly saline wastewater
    Shi M.
    Li B.
    Wang T.
    Wu L.
    Fangzhi Xuebao/Journal of Textile Research, 2021, 42 (12): : 103 - 110
  • [10] Synthesis and characterization of ternary nanocomposites of TiO2/rGO/CdS as an efficient catalyst for photo-degradation of methyl orange
    Ramesh, Subramanian
    Punithamoorthy, Kaliaperumal
    JOURNAL OF THE CHINESE CHEMICAL SOCIETY, 2023, 70 (01) : 24 - 31
12345