Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, China.
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2010 Dec;45(14):1815-22. doi: 10.1080/10934529.2010.520494.
The adsorption behavior of 17β-estradiol (E2) on marine sediments treated by different methods was investigated in the presence of bisphenol A (BPA), dibutyl phthalate (DBP), cationic surfactant cetyltrimethylammonium bromide (CTAB), nonionic surfactant polyoxyethylene (80) sorbitan esters (Tween 80) and anionic surfactant sodium dodecylbenzene sulfonate (SDBS). Four sets of experiments were conducted to determine the adsorption isotherms of E2 with coexisting contaminants, to explore the effects of concentrations and types of coexisting contaminants on the E2 adsorption capacity, and to examine the influence of pH on E2 adsorption on the sediments. The adsorption behavior of E2 to marine sediments without the addition of surfactant mainly related to organic carbon content of sediments and fitted well with the Freundlich model. The presence of CTAB or Tween 80 enhanced the adsorption capacity of E2 of marine sediments. In contrast, the presence of BPA, DBP and SDBS inhibited the adsorption capacity of E2. The pH value of the solution could influence the adsorption behavior of E2 of the marine sediments. A decline in pH values was beneficial to the adsorption of E2 with the addition of surfactants.
研究了在双酚 A (BPA)、邻苯二甲酸二丁酯 (DBP)、阳离子表面活性剂十六烷基三甲基溴化铵 (CTAB)、非离子表面活性剂聚氧乙烯 (80) 山梨糖醇酯 (Tween 80) 和阴离子表面活性剂十二烷基苯磺酸钠 (SDBS) 存在的情况下，不同处理方法的海洋沉积物对 17β-雌二醇 (E2) 的吸附行为。进行了四组实验来确定共存污染物存在下 E2 的吸附等温线，探讨了共存污染物浓度和类型对 E2 吸附能力的影响，并考察了 pH 值对 E2 在沉积物上吸附的影响。在没有添加表面活性剂的情况下，E2 对海洋沉积物的吸附行为主要与沉积物的有机碳含量有关，且与 Freundlich 模型拟合良好。CTAB 或 Tween 80 的存在增强了海洋沉积物对 E2 的吸附能力。相比之下，BPA、DBP 和 SDBS 的存在抑制了 E2 的吸附能力。溶液的 pH 值会影响海洋沉积物中 E2 的吸附行为。添加表面活性剂时，pH 值降低有利于 E2 的吸附。
