摘要 目的：采用吸附法，考察M16Fe-MP對(duì)水體常見(jiàn)污染物四環(huán)素（TC）的吸附行為。方法:考察了吸附平衡時(shí)間﹑初始濃度﹑反應(yīng)溫度﹑pH值﹑離子強(qiáng)度等因素對(duì)吸附性能的影響，總結(jié)出最佳的吸附條件。結(jié)果：當(dāng)吸附時(shí)間達(dá)6 h時(shí)，吸附基本達(dá)到平衡。M16Fe-MP對(duì)四環(huán)素的吸附受pH影響較大，當(dāng)pH為4時(shí)有最大吸附量。溶液中鈉離子含量越多越有利于吸附，而鈣離子濃度越高吸附效果越差。反應(yīng)溫度對(duì)吸附的影響較小。結(jié)論:TC在M16Fe-MP上的吸附平衡時(shí)間約6 h。在反應(yīng)溫度為45 ℃，pH為4，鈉離子強(qiáng)度較大或鈣離子濃度越小的情況下，吸附能力較強(qiáng)。

關(guān)鍵詞：抗生素；四環(huán)素；介孔材料；吸附

Abstract Objective: To investigate the Adsorption behavior of common water pollutants tetracycline(TC) onto M16Fe-MP. Method: Mainly studying the influences of equilibrium time, initial concentration, reaction temperature, the pH value of the solution, and ionic strength on the adsorption of antibiotics by M16Fe-MP,and seeking the best adsorption conditions. Result: The adsorption amount increased with the time prolonged, and kept a contant value of about 6 h; pH of the environment has great impact on the adsorption of TC onto M16Fe-MP,when the pH value equals 4,it has the largest adsorption amount ; Large numbers of sodium icons in the solution will greatly affect the M16Fe-MP adsorption of TC,while the concentration of calcium icons is higher.The experimental temperature on the adsorption was less affected.Conclusion: The equilibration time of adsorption is about 6 h,when the reaction temperature is 45℃,pH of 4 ,the concentration of TC is big,and ionic strength of sodium is big or the concentration of calcium icons is around 0.013 mol/L, the adsorption amount of TC on the M16Fe-MP is best.

Key words: antibiotics  Tetracycline  mesoporous  materials  adsorption