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无机—有机柱撑蒙脱石吸附对硝基苯酚的热力学与动力学特征研究 被引量:17

Study on Characteristics of Thermodynamics and Kinetics of p-Nitrophenol Sorption by Inorganic-Organic Pillared Montmorillonite from Water
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摘要 研究了无机-有机柱撑蒙脱石吸附对硝基苯酚的热力学特征,Freundlich和Langmuir等温方程都能较好地描述吸附曲线,所以其吸附机理主要以表面吸附为主;在对硝基苯酚的平衡吸附过程中,焓变ΔH绝对值小于30KJ/mol,表明吸附过程中可能同时存在疏水键力、偶极间力、氢键力、范德华力的作用。比较研究了对硝基苯酚在无机-有机柱撑蒙脱石上吸附的四种动力学模型,在吸附进行前30min,一级动力学方程最为理想,根据其相关系数可以求得各实验温度下的表观吸附速率常数Kd和吸附活化能Ea。 Inorganic-organic pillared montmorillonite was used to adsorb p-nitrophenol, and the thermo-dynamics and kinetics of sorption process was studied, The sorption isotherms were measured at different temperatures, the functions of thermo-dynamics and kinetics were calculated. During the p-nilrophenol sorption, changing value of enthalpy was bess than 30KJ/mol,which showed Van der Waals forces, hydrophobic bond forces, hydrogen bond forces and dipole bond forces maybe exist. The four kinetic models of p-nitrophenol sorption by inorganic-organic pillared montmorillonite was studied.The result showed that, 30min before sorption, first-order kinetic equation is optimal,and the adsorptive velocity Kd and adsorptive energy Ea can be calculated by relative coefficient under different temperatures.
出处 《环境保护科学》 CAS 2005年第6期15-19,共5页 Environmental Protection Science
基金 江苏省自然科学基金资助项目(项目编号:BK2004168)
关键词 无机—有机柱撑蒙脱石 对硝基苯酚 吸附 热力学 动力学 Inorganic-organic Pillared Montmorillonite p-Nitrophenol Adsorption Thermodynamics Kinetics
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  • 1Gao B.,Wang X.,ZhaoJ.,Sheng G.Sorption and cosorption of organic contaminant on surfactant-modifledsoils.Chemosphere,2001,43(8):1095~ 1102.
  • 2Barhoumi M.,Beurroies I.,Denoyel R.,Said H.,Hanna K..CoadsoIpdon of phenol and nonionic surfactants ontoclays,Colloids and Surfaces A.Physicochemical and Engineering Aspects,2003,223(1~3):63~72.
  • 3Gonzalez G.,Herrera G.,Garcia M.T.,Pens M..Biodegradation of phenolic industrial wastewater in a fluidized bed bioreactor with immobilized cells of Pseudomonas putida.Bioresource Technology,2001,80(2):137~ 1422.
  • 4Alemzadeh 1.,VOssoughi F.,Houshmandi M..Phenol biodegradation by rotating biological contactor.Biochemical Engineering Journal,2002,11(1):19~23.
  • 5Dieckmann M.S.,Gray K.A..A comparison of the degradation of 4-nitrophenol via direct and sensitized photocatalysis in TiO2slurries.Water Research,1996,30(5):1169~ 1183.
  • 6Carriazo J.G.,Guelou E.,Barrault J.,Tatibouet J.M.,Moreno S..Catalytic wet peroxide oxidation of phenol over AI-CU or Al-Fe modified clays.Applied Clay Science,2003,22,(6) :303~308.
  • 7张立娟,秦海燕,孙家寿,孙良全.铁交联累托石处理含硝基酚钠废水的研究[J].工业用水与废水,2003,34(3):26-29. 被引量:5
  • 8杨桂朋.海水中酚类有机物在粘土或沉积物上吸附特性的模拟研究[J].海洋科学,1999,23(5):60-63. 被引量:6
  • 9孙家寿,刘羽,鲍世聪,王玉林,杨小红.膨润土吸附剂对水中酚吸附性能研究[J].环境保护科学,1998,24(1):12-15. 被引量:18

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