Bisphenol A Adsorption Onto Metals Oxides and Organic Materials in the Natural Surface Coatings Samples (NSCSs) and Surficial Sediments (SSs): Inhibition for the Importance of Mn Oxides
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- 作者：Yu Li ; Na Li ; Dan Chen ; Xiaoli Wang ; Zili Xu and Deming Dong
- 关键词：Bisphenol A ; Adsorption ; Metal oxides ; Organic materials ; Natural surface coatings samples ; Surficial sediments
- 刊名：Water ; Air ; and Soil Pollution
- 出版时间：January, 2009
- 出版年：2009
- 期刊代码：78_00496979
- 类别：law
- 卷：196
- 期：1-4
- 页码：41-49
- 数据来源：sp
摘要
Selective extraction techniques followed by batch adsorption experiments and statistical analyses were employed to investigate the adsorption behavior of bisphenol A (BPA) onto the natural surface coatings samples (NSCSs) and surficial sediments (SSs) and estimate the relative contribution of components (i.e. Fe oxides, Mn oxides, organic materials and residues) to the total BPA adsorption. The results indicate that nonlinear Langmuir model can describe the adsorption behavior of BPA on the NSCSs and SSs before and after extraction treatments. The removal of Mn oxides from the NSCSs and SSs caused a significant increase in BPA adsorption, which implied that Mn oxides inhibited BPA adsorption onto solid matrix, and Fe oxides played a positive role in BPA adsorption onto the NSCSs and SSs. However, the removal of organic materials (OMs) led to a dramatic decrease in BPA adsorption, suggesting considerable amounts of BPA adsorbed onto OMs in the NSCSs and SSs. This study may provide important insights into the understanding of the transport and ultimate fate of BPA in the aquatic environments.