Adsorption of Enrofloxacin on montmorillonite: two-dimensional correlation ATR/FTIR spectroscopy study

Journal of Colloid and Interface Science
Wei YanChuanyong Jing

Abstract

Adsorption of Enrofloxacin (ENR) on minerals dominates the fate and transport of ENR in the environment. In this study, the sorption process of ENR on montmorillonite and the impact of dissolved organic matters (DOMs) on ENR-montmorillonite interactions were investigated using in situ ATR-FTIR spectroscopy and two-dimensional correlation analysis (2D-COS). Negative peaks were observed in the 3400-2900 cm(-1) region due to the loss of hydrated protons at montmorillonite surfaces. The primary characteristic peaks of adsorbed ENR molecules were resolved in the 1800-1100 cm(-1) range. The results of 2D-COS suggested the sorption process was initiated by the interaction of hydrated protons on montmorillonite surfaces with diverse moieties of ENR molecules depending on pH. The sorption mechanism of ENR was mainly cation exchange at acidic condition, charge neutralization at neutral condition, and proton transfer at alkaline condition. DOM could interact with piperazinyl amine groups of dissolved ENR, which changed the interaction sequence of ENR molecule with montmorillonite surfaces. Electrostatic interaction was the predominant driving force for the interaction between DOM and dissolved ENR. H-donor-acceptor interaction and π-π int...Continue Reading

References

May 14, 2003·Journal of Colloid and Interface Science·Shan Li WangStanley L Hem
Feb 8, 2005·Journal of Colloid and Interface Science·Keith W GoyneSusan L Brantley
Feb 12, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Seunghun Kang, Baoshan Xing
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Jan 31, 2012·Journal of Colloid and Interface Science·Wei YanChuanyong Jing

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Citations

Aug 22, 2015·Colloids and Surfaces. B, Biointerfaces·Seyed Ali YasiniHossein Shahdadi
Nov 14, 2015·ACS Applied Materials & Interfaces·Qiantao ShiChuanyong Jing
Jun 10, 2015·The Science of the Total Environment·Mohammad Boshir AhmedWenshan Guo
Sep 27, 2015·Ecotoxicology and Environmental Safety·Mareen Graouer-BacartEmmanuel Guillon
Apr 1, 2016·Environmental Science & Technology·Wei YanChuanyong Jing
Oct 23, 2013·The Science of the Total Environment·Sudha Rani BatchuPiero R Gardinali
Aug 21, 2013·Journal of Colloid and Interface Science·Mareen Graouer-BacartEmmanuel Guillon
Jul 14, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Michael P Schmidt, Carmen Enid Martínez
Dec 28, 2014·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Peilin HuangWuyi Zhou
Jan 11, 2020·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Ziyuan GuoNan Wu
Dec 20, 2020·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Hossein KhamooshiSiavash Davoodi
Sep 28, 2020·Water Research·Yun Kyung Lee, Jin Hur
Nov 24, 2017·Journal of Colloid and Interface Science·Fanny E K Okaikue-WoodiLudmilla Aristilde
Jun 20, 2020·Langmuir : the ACS Journal of Surfaces and Colloids·Kaiqian ShuZhoujie Wang

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