Vermiculite as heterogeneous catalyst in electrochemical Fenton-based processes: Application to the oxidation of Ponceau SS dye

被引:52
作者
dos Santos, Alexsandro Jhones [1 ]
Sires, Ignasi [1 ]
Alves, Ana P. M. [2 ]
Martinez-Huitle, Carlos A. [3 ]
Brillas, Enric [1 ]
机构
[1] Univ Barcelona, Fac Quim, Dept Quim Fis, Lab Electroquim Dels Mat & Medi Ambient, Marti i Franques 1-11, E-08028 Barcelona, Spain
[2] Univ Fed Paraiba, Dept Quim, BR-58051900 Joao Pessoa, Paraiba, Brazil
[3] Univ Fed Rio Grande do Norte, Inst Quim, Lab Eletroquim Ambiental & Aplicada, BR-59072900 Natal, RN, Brazil
关键词
Heterogeneous electro-Fenton; Heterogeneous Fenton; Mineral catalyst; Heterogeneous photoelectro-Fenton; Ponceau SS; Water treatment; SOLAR PHOTOELECTRO-FENTON; BORON-DOPED DIAMOND; ELECTRO-FENTON; WASTE-WATER; AZO DYES; TEXTILE WASTEWATERS; ANODE MATERIAL; CROSS-LINKING; DIAZO DYE; DEGRADATION;
D O I
10.1016/j.chemosphere.2019.124838
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Modified sodium vermiculite, an iron-rich clay mineral, has been used in novel heterogeneous electro-chemical Fenton-based treatments, so-called electro-Fenton (EF)-vermiculite, UVA photoelectro-Fenton (PEF)-vermiculite and solar photoelectro-Fenton (SPEF)-vermiculite. Tests were made with 130 mL of 0.150 mM Ponceau SS diazo dye in 0.050 M Na2SO4 at pH 3.0, in the presence of 1.0 g L-1 catalyst microparticles. The electrolyses were performed in an undivided cell with a boron-doped diamond anode (BDD) and air-diffusion cathode for H2O2 production, at 33.3 mA cm(-2). Decolorization and mineralization were upgraded in the sequence: EF-vermiculite < PEF-vermiculite < SPEF-vermiculite. The removal of organics occurred by the combined action of center dot OH oxidant formed at the BDD surface and homogeneous and heterogeneous Fenton's reactions, along with the photolysis caused by UVA light or sunlight. The homogeneous Fenton's reaction resulted from iron ions leaching, but the heterogeneous mechanism was prevalent. Comparative treatments by anodic oxidation in the presence of H2O2 and homogeneous EF were less effective than EF-vermiculite. The diazo dye absorbance decays agreed with a pseudo-firstorder kinetics. SPEF-vermiculite was the most powerful process, yielding total decolorization and 84.1% mineralization after 300 and 360 min, respectively. The influence of catalyst concentration, current density and diazo dye content on PEF-vermiculite performance was examined. Oxalic, oxamic, malic, tartronic and acetic acids were detected as final short-linear carboxylic acids. (C) 2019 Elsevier Ltd. All rights reserved.
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页数:9
相关论文
共 56 条
[1]  
[Anonymous], 2012, Managing Water under Uncertainty and Risk, V1
[2]   Iron oxide nanoparticles as heterogeneous electro-Fenton catalysts for the removal of AR18 azo dye [J].
Ben Hafaiedh N. ;
Fourcade F. ;
Bellakhal N. ;
Amrane A. .
Environmental Technology (United Kingdom), 2020, 41 (16) :2146-2153
[3]   PYROLYSIS of glycerol with modified vermiculite catalysts Kinetic and PY-GC/MS [J].
Bezerra Batista, Luana Marcia ;
Bezerra, Franciel Aureliano ;
Freitas Oliveira, Joao Leonardo ;
de Morais Araujo, Aruzza Mabel ;
Fernandes Junior, Valter Jose ;
Araujo, Antonio Souza ;
Gondim, Amanda Duarte ;
Alves, Ana P. M. .
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2019, 137 (06) :1929-1938
[4]   Electrochemical Degradation of Remazol Red BR and Novacron Blue C-D Dyes Using Diamond Electrode [J].
Bezerra Rocha, Jessica Horacina ;
Sales Solano, Aline Maria ;
Fernandes, Nedja Suely ;
da Silva, Djalma Ribeiro ;
Manuel Peralta-Hernandez, Juan ;
Martinez-Huitle, Carlos Alberto .
ELECTROCATALYSIS, 2012, 3 (01) :1-12
[5]  
Boye B, 2002, NEW DIAM FRONT C TEC, V12, P63
[6]   Decontamination of wastewaters containing synthetic organic dyes by electrochemical methods. An updated review [J].
Brillas, Enric ;
Martinez-Huitle, Carlos A. .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2015, 166 :603-643
[8]   Electro-Fenton Process and Related Electrochemical Technologies Based on Fenton's Reaction Chemistry [J].
Brillas, Enric ;
Sires, Ignasi ;
Oturan, Mehmet A. .
CHEMICAL REVIEWS, 2009, 109 (12) :6570-6631
[9]   Iron pillared vermiculite as a heterogeneous photo-Fenton catalyst for photocatalytic degradation of azo dye reactive brilliant orange X-GN [J].
Chen, Qiuqiang ;
Wu, Pingxiao ;
Dang, Zhi ;
Zhu, Nengwu ;
Li, Ping ;
Wu, Jinhua ;
Wang, Xiangde .
SEPARATION AND PURIFICATION TECHNOLOGY, 2010, 71 (03) :315-323
[10]   Abatement of the antibiotic levofloxacin in a solar photoelectro-Fenton flow plant: Modeling the dissolved organic carbon concentration-time relationship [J].
Coria, Gabriela ;
Perez, Tzayam ;
Sires, Ignasi ;
Brillas, Enric ;
Nava, Jose L. .
CHEMOSPHERE, 2018, 198 :174-181