Photodegradation of Rhodamine B in α-FeOOH/oxalate under light irradiation

被引：6
作者：
Chen, Rufen [1 ,2 ]
Zhang, Xiaonian [1 ]
Liu, Hui [1 ]
Song, Xiuqin [1 ]
Wei, Yu [1 ]
机构：
[1] Hebei Normal Univ, Coll Chem & Mat Sci, Shijiazhuang 050024, Peoples R China
[2] Key Lab Inorgan Nanomat Hebei Prov, Shijiazhuang 050024, Peoples R China
来源：
RSC ADVANCES | 2015年 / 5卷 / 93期
基金：
中国国家自然科学基金;
关键词：
AQUEOUS DISPERSIONS; HYDROXYL RADICALS; RATE CONSTANTS; METHYL-ORANGE; OXALIC-ACID; DEGRADATION; OXIDATION; CATALYST; UVA; PHOTOCHEMISTRY;
D O I：
10.1039/c5ra13586a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
High- and low-crystalline goethite (alpha-FeOOH) were obtained via air oxidation of Fe(OH)(2). Rhodamine B (RhB) was selected as a model pollutant, and the photocatalytic activity of the alpha-FeOOH/oxalate system under light irradiation was evaluated. The crystal structure, morphology, and specific surface area of the prepared alpha-FeOOH samples were determined by X-ray diffraction (XRD), transmission electron microscopy (TEM), and Brunauer-Emmett-Teller (BET), respectively. The adsorption behavior of alpha-FeOOH was determined using the Langmuir model. The effects of initial pH value, initial concentration of oxalic acid, and light intensity on RhB photodegradation were investigated in the alpha-FeOOH/oxalate suspension. In contrast to high-crystalline alpha-FeOOH, low-crystalline alpha-FeOOH with a high specific surface shows higher adsorption and photocatalytic activity toward RhB photodegradation by a photo-Fenton-like reaction. A possible mechanism for RhB degradation was also suggested.
引用
收藏
页码：76548 / 76555
页数：8
相关论文
共 36 条
  • [1] Natural graphite tailings as heterogeneous Fenton catalyst for the decolorization of rhodamine B
    Bai Cuiping
    Gong Wenqi
    Feng Dexin
    Xian Mo
    Zhou Qi
    Chen Shaohua
    Ge Zhongxue
    Zhou Yanshui
    [J]. CHEMICAL ENGINEERING JOURNAL, 2012, 197 : 306 - 313
  • [2] Atrazine degradation in irradiated iron oxalate systems: Effects of pH and oxalate
    Balmer, ME
    Sulzberger, B
    [J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1999, 33 (14) : 2418 - 2424
  • [3] CRITICAL-REVIEW OF RATE CONSTANTS FOR REACTIONS OF HYDRATED ELECTRONS, HYDROGEN-ATOMS AND HYDROXYL RADICALS (.OH/.O-) IN AQUEOUS-SOLUTION
    BUXTON, GV
    GREENSTOCK, CL
    HELMAN, WP
    ROSS, AB
    [J]. JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 1988, 17 (02) : 513 - 886
  • [4] Photocatalytic oxidation of Fe(OH)2 suspension with visible light irradiation
    Chen, Rufen
    Chen, Haixia
    Wei, Yu
    Hou, Denglu
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (44) : 16453 - 16459
  • [5] Synthesis of Variable-Sized Fe3O4 Nanocrystals by Visible Light Irradiation at Room Temperature
    Chen, Rufen
    Song, Guoqiang
    Wei, Yu
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (32) : 13409 - 13413
  • [6] PHOTOCHEMISTRY OF AQUEOUS IRON(III) POLYCARBOXYLATE COMPLEXES - ROLES IN THE CHEMISTRY OF ATMOSPHERIC AND SURFACE WATERS
    FAUST, BC
    ZEPP, RG
    [J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1993, 27 (12) : 2517 - 2522
  • [7] Chromate adsorption on iron oxyhydroxides with different crystal forms in the presence of soil materials
    Fukuoka, Hiroshi
    Shigemoto, Naoya
    Inomo, Hitoshi
    Shiraki, Wataru
    [J]. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 2008, 41 (02) : 69 - 75
  • [8] RATE CONSTANTS FOR REACTION OF HYDROXYL RADICALS WITH SEVERAL DRINKING-WATER CONTAMINANTS
    HAAG, WR
    YAO, CCD
    [J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1992, 26 (05) : 1005 - 1013
  • [9] Photooxidation of azo dye in aqueous dispersions of H2O2/α-FeOOH
    He, J
    Ma, WH
    He, JJ
    Zhao, JC
    Yu, JC
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2002, 39 (03) : 211 - 220
  • [10] Degradation of rhodamine B by Fe(0)-based Fenton process with H2O2
    Hou, Mei-Fang
    Liao, Lin
    Zhang, Wei-De
    Tang, Xiao-Yan
    Wan, Hong-Fu
    Yin, Guang-Cai
    [J]. CHEMOSPHERE, 2011, 83 (09) : 1279 - 1283
1234