Removal of the emerging contaminant bisphenol A by an ureasil–PEO hybrid membrane: experimental study and molecular dynamic simulation
- 238 Downloads
This work reports the use of a cross-linked ureasil–PEO hybrid matrix (designated PEO800) as an efficient adsorbent to retain the emerging contaminant bisphenol A (BPA) from an aqueous medium. The in-deep experimental and theoretical results provide information about the interactions between PEO800 and BPA. The in situ UV-vis spectroscopy data and the pseudo-first order, pseudo-second order, Elovich, and Morris–Webber intraparticle diffusion models allowed us to propose a three-step mechanism for the adsorption of BPA onto PEO800. The results indicate that the pseudo-first-order kinetic model effectively describes the adsorption of BPA onto PEO800. Differential scanning calorimetry (DSC) and Fourier transform infrared (FTIR) spectroscopy confirmed the interaction of PEO800 with BPA, showing an alteration in the chemical environment of the polymer ether oxygen atoms present in the hybrid matrix. The molecular dynamic simulation provides further evidence that the BPA molecules interact preferentially with PEO. The amount of desorbed BPA depended on the pH and solvent used in the assays. This work provides new opportunities for using the hydrophilic ureasil–PEO matrix which has demonstrated its abilities in being a fast and easy alternative to successfully removing organic contaminants from aqueous mediums and therefore having potential applications in water remediation.
KeywordsOrganic–inorganic hybrid Bisphenol A Adsorption
We acknowledge the financial support received from the Brazilian agencies CAPES, CNPq, and FAPESP (Project 2013/20455-2 and 2016/01501-1). We would like to thank Huntsman Performed Products for donating Jeffamines. We thank Dr. Fábio L. Pissetti (Departamento de Ciências Exatas Universidade Federal de Alfenas—Unifal-MG) for helping in DSC data collection efforts.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
- Bruce P, Barden R, Kasprzyk-Hordern B (2015) A review on emerging contaminants in wastewaters and the environment: Current knowledge, understudied areas and recommendations for future monitoring. Water Res 72:3–27Google Scholar
- Chinh NH, Kim N, Nguyen-Phan TD, Yoo IK, Shin E (2014): Adsorptive interaction of bisphenol A with mesoporous titanosilicate/reduced graphene oxide nanocomposite materials: FT-IR and Raman analyses. Nanoscale Res Lett 9Google Scholar
- Freundlich FHM (1906) Uber die adsorption in Losungen, Zeitschrift fur Physikalische Chemie. Z Phys Chem 385–470Google Scholar
- Hoffmann F, Froba M (2010) John Wiley & Sons, LondonGoogle Scholar
- Low MJD (1960) Kinetics of chemisorption of gases on solids. Chem Soc Rev 267–312Google Scholar
- Nicole L, Laberty-Robert CR, Sanchez L (2014) Hybrid materials science: apromised land for the integrative design of multifunctional materials. Nanoscale 6267–6292Google Scholar
- Nunes SC, de Zea Bermudez V, Ostrovskii D, Barbosa PC, Silva MM, Smith MJ (2008) Cationic and anionic environments in LiTFSI-doped di-ureasils with application in solid-state electrochromic devices. Chem Phys 345(1):32–40Google Scholar
- Oosternbrink CVA, Mark AE, Gunsteren WF (2004) A biomolecular force field based on the free enthalpy of hydration and solvation: the GROMOS force-field parameter sets 53A5 and 53A6. J Comput Chem 1656–1676Google Scholar
- Park C, Fang Y, Murthy SN, Novak JT (2010) Effects of floc aluminum onactivated sludge characteristics and removal of 17-α-ethinylestradiol in wastewater systems. Water Res 1335–1340Google Scholar
- Thanhmingliana, Lee SM, Tiwari D (2014) Use of hybrid materials in the decontamination of bisphenol A from aqueous solutions. RSC Adv 4:43921–43930Google Scholar
- vom-Saal FSV, Nagel SC, Palanza P, Boechler M, Parmigiani S, Welshons WV (1995) Estrogenic pesticides: binding relative to estradiol in MCF-7 cells and effects of exposure during fetal life on subsequent territorial behaviour in male mice. Toxicol Lett 3343–350Google Scholar
- Weber WJJ (1963) Kinetics of adsorption of carbono from solution. In: Morris JC (Hrsg.). Journal of the Sanitary Engineering Division, American Society of Civil Engineers. Sanitary Engineering Division, pp 31–59Google Scholar
- Yasushi T, Osamu T, Yumiko I, Hisahiko H, Yutaka OMM, Yano T, Yuji T (2000) Estrogen receptor-mediated effects of a xenoestrogen, bisphenol A, on preimplantation mouse embryos. Biochem Biophys Res Commun 918–921Google Scholar