Jump to main content
Jump to site search

Issue 32, 2018
Previous Article Next Article

Rapid extraction of trace bisphenol A in real water samples using hollow mesoporous silica surface dummy molecularly imprinted polymers

Author affiliations

Abstract

Hollow mesoporous silica surface dummy molecularly imprinted polymers (HM-DMIPs) were prepared via surface dummy molecular imprinting combined with a hybrid strategy for the highly selective recognition and rapid separation of trace bisphenol A (BPA) from environmental water samples. The obtained materials were well characterized using TEM, SEM, FT-IR, TG and N2 sorption analysis. Moreover, the proper binding and selective recognition ability were also investigated by a batch rebinding assay. As a control, hollow mesoporous silica surface molecularly imprinted polymers (HM-MIPs), silica surface dummy molecularly imprinted polymers (SiO2-DMIPs) and hollow mesoporous silica surface dummy non-imprinted polymers (HM-DNIPs) were also synthesized. Results showed that HM-DMIPs possessed a fast kinetics, high rebinding capacity of 69.6 mg g−1, 3.0, 2.2 and 4.7 times higher than that of SiO2-DMIPs, HM-MIPs and HM-DNIPs, respectively. Moreover, an extremely high selectivity toward BPA over 4,4′-biphenol, diethylstilbestrol and hydroquinone was obtained and the selectivity coefficients were all above 6.96. The HM-DMIPs could be reused for ten runs, indicating their excellent stability and reusability. The results of theoretical analysis indicated a chemical adsorption process. Furthermore, real water samples were successfully analyzed with HM-DMIPs and high recoveries in the range of 98.7–101.7% were obtained. These results demonstrated that HM-DMIPs could serve as an efficient sorbent for rapid separation of trace BPA from environmental water samples.

Graphical abstract: Rapid extraction of trace bisphenol A in real water samples using hollow mesoporous silica surface dummy molecularly imprinted polymers

Back to tab navigation

Supplementary files

Publication details

The article was received on 10 Jul 2018, accepted on 25 Jul 2018 and first published on 25 Jul 2018


Article type: Paper
DOI: 10.1039/C8AY01530A
Anal. Methods, 2018,10, 3926-3932

  •   Request permissions

    Rapid extraction of trace bisphenol A in real water samples using hollow mesoporous silica surface dummy molecularly imprinted polymers

    L. Li, K. Yu, M. Tian, Y. Wang, Z. Zhang, G. Jiang and L. Li, Anal. Methods, 2018, 10, 3926
    DOI: 10.1039/C8AY01530A

Search articles by author

Spotlight

Advertisements