Jump to main content
Jump to site search

Issue 2, 2020
Previous Article Next Article

Immobilization of TBBPA on pyrogenic carbon subjected to natural organic matter under freeze–thawing conditions: insights into surface functionalization, coverage processes and binding affinity

Author affiliations

Abstract

The long-term environmental effects of pyrogenic carbon have recently raised many concerns in terms of the fate and transport of emerging pollutants. This study explored the surface changes of geometric structure, functional groups, and site-energy distribution on pyrogenic carbon surfaces throughout a long-term physical aging process. Through synchrotron-based FTIR analysis, a homo-functionalization process was found to be the result of the consolidation of oxygen-containing groups with aromatic structures and the antagonization of other active hydroxyl groups in surface formation. Kinetic studies of TBBPA immobilization on pyrogenic carbon surfaces revealed a coverage process where TBBPA–humic acid, pyrogenic carbon–humic acid and pyrogenic carbon–TBBPA interactions can be formed. Isotherm analysis further indicated that the coverage process of natural organic matter (NOM) can enhance the processes of multilayer adsorption and thermodynamic alteration. Moreover, the results exhibited that site energies were dominated by O[double bond, length as m-dash]C–OH⋯O[double bond, length as m-dash]C–OH hydrogen bonds from NOM linkages, and O–H⋯O–H hydrogen bonds for TBBPA interactions were weakened by NOM coverage. Understanding such TBBPA interactions on carbonaceous porous materials will not only enrich the understanding of the transport of ionic pollutants under complex environmental conditions, but also support the evaluation of long-term environmental impacts of both naturally and artificially produced pyrogenic carbons.

Graphical abstract: Immobilization of TBBPA on pyrogenic carbon subjected to natural organic matter under freeze–thawing conditions: insights into surface functionalization, coverage processes and binding affinity

Back to tab navigation

Supplementary files

Article information


Submitted
18 Jul 2019
Accepted
08 Dec 2019
First published
09 Dec 2019

Environ. Sci.: Nano, 2020,7, 472-485
Article type
Paper

Immobilization of TBBPA on pyrogenic carbon subjected to natural organic matter under freeze–thawing conditions: insights into surface functionalization, coverage processes and binding affinity

J. Shen, G. Huang, C. An, Y. Yao, X. Xin and S. Rosendahl, Environ. Sci.: Nano, 2020, 7, 472
DOI: 10.1039/C9EN00819E

Social activity

Search articles by author

Spotlight

Advertisements