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四环素在光催化剂TiO2上的吸附研究

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宋晨怡, 胡霞林, 尹大强. 四环素在光催化剂TiO2上的吸附研究[J]. 环境化学, 2011, 30(7): 1291-1296.
引用本文: 宋晨怡, 胡霞林, 尹大强. 四环素在光催化剂TiO2上的吸附研究[J]. 环境化学, 2011, 30(7): 1291-1296.
shu
SONG Chenyi, HU Xialin, YIN Daqiang. ADSORPTION OF TETRACYCLINE TO TiO2 PHOTOCATALYST[J]. Environmental Chemistry, 2011, 30(7): 1291-1296.
Citation: SONG Chenyi, HU Xialin, YIN Daqiang. ADSORPTION OF TETRACYCLINE TO TiO2 PHOTOCATALYST[J]. Environmental Chemistry, 2011, 30(7): 1291-1296.
shu

四环素在光催化剂TiO2上的吸附研究

  • 1.

    长江水环境教育部重点实验室, 同济大学环境科学与工程学院, 上海, 200092

  • 基金项目:

    国家自然科学基金(20777055)

    国际科技合作计划(2010DFA91800)资助.

ADSORPTION OF TETRACYCLINE TO TiO2 PHOTOCATALYST

  • 1.

    Key Laboratory of Yangtze River Water Environment, Ministry of Education;School of Enviroment Science and Engineering, Tongji University, Shanghai, 200092, China

  • Fund Project:

  • 摘要: 选取四环素作为代表抗生素,考察了溶液的pH值、离子强度(二价阳离子Ca2+和Mg2+)、腐殖酸3种环境因子对四环素在光催化剂二氧化钛(TiO2)上吸附的影响.结果表明,在3个不同pH(pH 3、6和9)条件下的吸附等温线均符合Langmuir吸附等温方程,拟合的相关系数R2均大于0.999; 四环素在TiO2上的吸附量在pH 2—9范围内逐渐增大,在pH值高于9后显著减小.四环素在TiO2上的吸附量明显受到离子强度和腐殖酸的影响.本文对吸附机理及影响机制进行了讨论.
    Abstract: In this paper, the impact of three environmental factors including solution pH, ionic strength and humic acid on the adsorption of tetracycline to titanium dioxide(TiO2)photocatalyst was studied. The adsorption isotherms under different pH conditions(pH=3, 6 and 9)were obtained, which fit the Langmuir equation well with R2 values all higher than 0.999. The adsorption of tetracycline to TiO2 increased with the increasing pH within the range of 2—9, whereas of decreased significantly when pH was higher than 9. The presence of divalent cations(Ca2+ and Mg2+)and humic acid also significantly inhibited the adsorption of tetracycline to TiO2. The mechanisms of absorption were discussed.
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  • [1] Andreozzi R, Canterino M, Lo Giudice R, et al. Lincomycin solar photodegradation,algal toxicity and removal from wastewaters by means of ozonation [J].Water Res, 2006, 40:630-638
    [2] Reyes C, Fern'andez J. Degradation and inactivation of tetracycline by TiO2 photocatalysis [J]. Journal of Photochemistry and Photobiology A:Chemistry, 2006, 184 :141-146
    [3] 慕容心, 李丽媛, 邵云, 等. TiO2纳米棒对四环素的光催化降解 [J]. 环境化学, 2010, 29(3) :476-480
    [4] Zhu Xingdong, Nanny Mark A. Effect of inorganic anions on the titanium dioxide-based photocatalytic oxidation of aqueous ammonia and nitrite [J]. Journal of Photochemistry and Photobiology A: Chemistry, 2007, 185:289-294
    [5] Hu C, Yu Jimmy C. Effects of acidity and inorganic ions on the photocatalytic degradation of different azo dyes[J]. Applied Catalysis B: Environmental, 2003, 46:35-47
    [6] Magdy Y H, Daifullah A A. Adsorption of a basic dye from aqueous solutions onto sugarindustry-mud in two modes of operations [J]. Waste Management, 1998, 18:219-226
    [7] Weber W J, Crittendent J C. A numeric method for design of adsorption systems [J]. Water Poll Control Fed, 1975, 47:924
    [8] Werner J J, Arnold W A, McNeill K, et al. Water hardness as a photochemical parameter: tetracycline photolysis as a function of calcium concentration, magnesium concentration, and pH [J]. Environ Sci Technol, 2006, 40:7236-7241
    [9] Dragana Mutavdic＇ Pavlovic＇, Sandra Babic＇. Sample preparation in analysis of pharmaceuticals [J]. Trends in Analytical Chemistry, 2007, 26(11) :1062-1075
    [10] Jiao Shaojun, Zheng Shourong, Yin Daqiang. Aqueous photolysis of tetracycline and toxicity of photolytic productsto luminescent bacteria[J]. Chemosphere, 2008, 73(9) :377-382
    [11] Kormann C, Bahnemann D W, Hoffmann M R. Photolysis of chloroform and other organic molecules in aqueous titanium dioxide suspensions [J]. Environ Sci Technol, 1991, 25(3) :494-500
    [12] 董永春, 王秋芳. 不同结构偶氮染料在TiO2纳米颗粒表面的吸附和光催化降解 [J]. 过程工程学报,2007,8(4) :668-673
    [13] Ji Liangliang,Chen Wei, Zheng Shourong,et al. Adsorption of sulfonamide antibiotics to multiwalled carbon nanotubes [J]. Langmuir, 2009, 25(19) :11608-11613
    [14] Dror Avisar, Orna Primor. Sorption of sulfonamides and tetracyclines to montmorillonite Clay [J]. Water Air Soil Pollut, 2010, 209:439-450
    [15] Jin L, Amaya-Mazo X, Apel M E, et al. Ca2+ and Mg2+ bind tetracycline with distinct stoichiometries and linked deprotonation [J]. Biophys Chem, 2007, 128:185-196
    [16] 戴树桂. 环境化学[M]. 北京:高等教育出版社, 1997: 211
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  • 收稿日期:  2010-08-17
宋晨怡, 胡霞林, 尹大强. 四环素在光催化剂TiO2上的吸附研究[J]. 环境化学, 2011, 30(7): 1291-1296.
引用本文: 宋晨怡, 胡霞林, 尹大强. 四环素在光催化剂TiO2上的吸附研究[J]. 环境化学, 2011, 30(7): 1291-1296.
shu
SONG Chenyi, HU Xialin, YIN Daqiang. ADSORPTION OF TETRACYCLINE TO TiO2 PHOTOCATALYST[J]. Environmental Chemistry, 2011, 30(7): 1291-1296.
Citation: SONG Chenyi, HU Xialin, YIN Daqiang. ADSORPTION OF TETRACYCLINE TO TiO2 PHOTOCATALYST[J]. Environmental Chemistry, 2011, 30(7): 1291-1296.
shu

四环素在光催化剂TiO2上的吸附研究

  • 1. 长江水环境教育部重点实验室, 同济大学环境科学与工程学院, 上海, 200092
  • 收稿日期:  2010-08-17
基金项目:

国家自然科学基金(20777055)

国际科技合作计划(2010DFA91800)资助.

摘要: 选取四环素作为代表抗生素,考察了溶液的pH值、离子强度(二价阳离子Ca2+和Mg2+)、腐殖酸3种环境因子对四环素在光催化剂二氧化钛(TiO2)上吸附的影响.结果表明,在3个不同pH(pH 3、6和9)条件下的吸附等温线均符合Langmuir吸附等温方程,拟合的相关系数R2均大于0.999; 四环素在TiO2上的吸附量在pH 2—9范围内逐渐增大,在pH值高于9后显著减小.四环素在TiO2上的吸附量明显受到离子强度和腐殖酸的影响.本文对吸附机理及影响机制进行了讨论.

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