title: Rapid method for the separation and recovery of endocrine-disrupting compound bisphenol AP from wastewater.
abstract: The removal of bisphenol AP (BPAP) by a multiwalled carbon nanotube (MWCNT) was investigated. BPAP, representing typical scenarios for the BPAP-MWCNT interactions, was employed as a probe molecule. It was found that BPAP exhibited great adsorptive affinity to MWCNT, and the adsorption kinetics equilibrium was arrived within 4.0 min following the pseudo-second-order model. The overall rate process was mainly controlled by the external mass transfer. The hydrogen bond, hydrophobic, and π-π stacking interactions were dominant factors for the strong adsorption of BPAP, instead of the pH ionic strength and other ionic species in contaminated water. The MWCNT has higher stability within 8 removal-regeneration recycles, and up to 95% of recovery could be obtained by eluting the adsorbed BPAP on MWCNT adsorbent using ethanol/sodium hydrate solution. The results of the experiment on real samples verified the effectiveness for the recovery and removal of BPAP from wastewater samples.
authors: College of Chemistry, Liaoning University, Shenyang 110036, People's Republic of China. zhanglei63@126.com
authors: Lei
authors: L
authors: Zhang
authors: Pan
authors: P
authors: Fang
authors: Lijun
authors: L
authors: Yang
authors: Jing
authors: J
authors: Zhang
authors: Xin
authors: X
authors: Wang
mesh_terms: D000327:Adsorption; D001559:Benzhydryl Compounds / Q000302:isolation & purification*; D052244:Endocrine Disruptors / Q000302:isolation & purification*; D000431:Ethanol; D006860:Hydrogen Bonding; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D037742:Nanotubes, Carbon / Q000737:chemistry*; D009994:Osmolar Concentration; D010636:Phenols / Q000302:isolation & purification*; D012972:Sodium Hydroxide; D062065:Wastewater / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D000098826:Bisphenol A Compounds
chemical_list: D001559:Benzhydryl Compounds; D052244:Endocrine Disruptors; D000431:Ethanol; D037742:Nanotubes, Carbon; D010636:Phenols; D012972:Sodium Hydroxide; D062065:Wastewater; D014874:Water Pollutants, Chemical; C006780:bisphenol A; D000098826:Bisphenol A Compounds