| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 149898 | Chemical Engineering Journal | 2012 | 6 Pages |
A novel hyper-cross-linked polymeric adsorbent modified with acetylaniline as the cross-linked bridge (denoted GQ-02) was synthesized for the enhanced removal of bisphenol A (BPA) from aqueous solution. Its chemical structure and pore structure were characterized by infrared spectroscopy and surface area analysis. Results showed that the adsorption capacity of BPA onto GQ-02 was larger than that of the commercial resins NDA-150, H103, NDA-88, NDA-99, and XAD-4 due to the cross-linked bridge of acetylaniline uploaded on GQ-02 resin. The solution pH had no significant effect on the adsorption capacity until it was higher than 6.39. The adsorption rate of GQ-02 was greater than that of H103 because of the longer cross-linked bridge between two benzene rings. The adsorption isotherms could be correlated to the Langmuir equation. More favorable adsorption of BPA onto GQ-02 than H103 was further demonstrated by thermodynamic analysis. Nearly 100% regeneration efficiency for GQ-02 was achieved by 80% ethanol and 0.5 mol/L NaOH.
Graphical abstractIn view of the toxicity of nitrobenzene, 1,2-dichloroethane was used as solvent. The adsorption capacity of BPA on the novel adsorbent GQ-02 is larger than that of the commercial resins. GQ-02 had higher rate than H103. GQ-02 can be looked on as a promising adsorbent for BPA due to the uploaded cross-linked bridge of acetylaniline.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► In view of the toxicity of nitrobenzene, 1,2-dichloroethane was used as solvent. ► A novel adsorbent modified with acetylaniline as the cross-linked bridge was synthesized. ► The adsorption capacity of BPA on GQ-02 was larger than that of the commercial resins. ► GQ-02 had higher rate constant than H103.
