Kinetics of dodecylbenzenesulphonate mineralisation by TiO2 photocatalysis

被引:52
作者
Sanchez, Montserrat [1 ]
Rivero, Maria J. [1 ]
Ortiz, Inmaculada [1 ]
机构
[1] Univ Cantabria, ETSIIT, Dept Chem Engn & Inorgan Chem, E-39005 Santander, Spain
关键词
DBS; TiO2; Mineralisation kinetics; HETEROGENEOUS PHOTOCATALYSIS; TITANIUM-DIOXIDE; DEGRADATION; PHOTODEGRADATION; SURFACTANTS; OXIDATION; SULFONATE; WATER; DECOMPOSITION; FUNDAMENTALS;
D O I
10.1016/j.apcatb.2010.10.023
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
In this work, the kinetics of mineralisation of sodium dodecylbenzenesulphonate (DBS) by TiO2 photocatalysis has been studied. Although several works have studied the kinetics of photodegradation of the primary pollutant, the formation of organic intermediates brings a worse situation when those compounds are hardly oxidised. Total mineralisation is thus the desired objective in any oxidation process, being the kinetics a good indicator of the process efficacy. Working between 50 mg L-1 and 200 mg L-1 of DBS and catalyst loadings between 0.5 g L-1 and 5 g L-1, the mineralisation kinetics of DBS degradation by TiO2 photocatalysis has been experimentally and theoretically analysed. The mineralisation kinetic curves presented two different zones with different slopes, the second one attributed to the intermediate compounds and with a lower rate. Data in the two zones fitted to second order kinetic models with different values of the kinetic parameters. Additionally, the kinetics of DBS removal has also been analysed observing that kinetic data corresponding to high surfactant concentration followed a second order trend similar to the mineralisation results. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:515 / 521
页数:7
相关论文
共 50 条
  • [31] Preparation of doped TiO2 nanomaterials and their applications in photocatalysis
    Xia, Ji
    Dong, Luzheng
    Song, Hanyang
    Yang, Jing
    Zhu, Xiashi
    BULLETIN OF MATERIALS SCIENCE, 2023, 46 (01)
  • [32] The Role of Metal Nanoparticles in Promoting Photocatalysis by TiO2
    Bowker, Michael
    O'Rourke, Christopher
    Mills, Andrew
    TOPICS IN CURRENT CHEMISTRY, 2022, 380 (03)
  • [33] Removal of metronidazole and amoxicillin mixtures by UV/TiO2 photocatalysis: an insight into degradation pathways and performance improvement
    Mai Lien Tran
    Fu, Chun-Chieh
    Juang, Ruey-Shin
    ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2019, 26 (12) : 11846 - 11855
  • [34] Degradation kinetics and mechanism of RDX and HMX in TiO2 photocatalysis
    Choi, JK
    Son, HS
    Kim, TS
    Stenstrom, MK
    Zoh, KD
    ENVIRONMENTAL TECHNOLOGY, 2006, 27 (02) : 219 - 232
  • [35] Kinetics and mechanism of chlorinated aniline degradation by TiO2 photocatalysis
    Nitoi, Ines
    Oancea, Petruta
    Cristea, Ionut
    Constsntin, Lucian
    Nechifor, Gheorghe
    JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2015, 298 : 17 - 23
  • [36] TiO2 photocatalysis: Design and applications
    Nakata, Kazuya
    Fujishima, Akira
    JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS, 2012, 13 (03) : 169 - 189
  • [37] TiO2 Nanomaterials for Enhanced Photocatalysis
    Peng, Tao
    Lalman, Jerald A.
    CATALYSIS BY METAL COMPLEXES AND NANOMATERIALS: FUNDAMENTALS AND APPLICATIONS, 2019, 1317 : 135 - 165
  • [38] Enhanced photocatalysis on TiO2 nanotube arrays modified with molecularly imprinted TiO2 thin film
    Liu, Yutang
    Liu, Ronghua
    Liu, Chengbin
    Luo, Shenglian
    Yang, Lixia
    Sui, Fan
    Teng, Yarong
    Yang, Renbin
    Cai, Qingyun
    JOURNAL OF HAZARDOUS MATERIALS, 2010, 182 (1-3) : 912 - 918
  • [39] Effectiveness of photocatalysis of MMT-supported TiO2 and TiO2 nanotubes for rhodamine B degradation
    Thi Bang Tam Dao
    Thi Thu Loan Ha
    Trung Do Nguyen
    Hon Nhien Le
    Chi Nhan Ha-Thuc
    Thi Mai Loan Nguyen
    Perre, Patrick
    Dang Mao Nguyen
    CHEMOSPHERE, 2021, 280
  • [40] Kinetics of photocatalytic decolourization of cationic dye using porous TiO2 film
    Jawad, Ali H.
    Mubarak, Nur Shazwani Abdul
    Ishak, Mohd Azlan Mohd
    Ismail, Khudzir
    Nawawi, W. I.
    JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE, 2016, 10 (03): : 352 - 362