Journal of Thermal Analysis and Calorimetry

, Volume 139, Issue 2, pp 913–921 | Cite as

Thermodynamic study of triclosan adsorption from aqueous solutions on activated carbon

Modelling of experimental adsorption isotherm and calorimetry data
  • Valentina Bernal
  • Liliana Giraldo
  • Juan Carlos Moreno-PirajánEmail author


The change in the thermodynamic properties of triclosan adsorption on three activated carbons with the different surface chemistry was studied through immersion calorimetry and equilibrium data; the amount adsorbed of triclosan (Q) during calorimetry was determined and correlated with the energy associated with adsorbate–adsorbent interactions in the adsorption process. It was noted that triclosan adsorption capacity decreases with an increase in oxygenated surface groups. For an activated carbon oxidized with HNO3 (OxAC), the amount adsorbed was 8.50 × 10−3 mmol g−1, for a activated carbon without modification (GAC) Q = 10.3 × 10−3 mmol g−1 and for a activated carbon heated at 1073 K (RAC1073) Q = 11.4 × 10−3 mmol g−1. The adsorbed amounts were determined by adjusting the isotherms to the Sips model. For the activated carbon RAC1073, the immersion enthalpy (ΔHimm) was greater than those of the other two activated carbons due to the formation of interactions with the solvent (ΔHimmOxAC = − 27.3 J g−1 < ΔHimmGAC = − 40.0 J g−1 < ΔHimm RAC1073 = − 60.7 J g−1). The changes in the interaction enthalpy and Gibbs energy are associated with adsorbate–adsorbent interactions and side interactions such as the adsorbate–adsorbate and adsorbate–solvent interactions.


Activated carbon Adsorption Entropy change Gibbs energy change Immersion enthalpy Interaction enthalpy Triclosan 



The authors wish to thank the framework agreement between the National University of Colombia and the Andes University (Colombia). The project of the National University of Colombia DIEB code 37348. The authors also appreciate the grant for the funding of research programs for Associate Professors, Full Professors and Emeritus Professors announced by the Faculty of Sciences of the University of the Andes, 20-12-2019-2020, 2019, according to the project “Enthalpy, free energy and adsorption energy of the activated carbon interaction and solutions of emerging organic compounds”.


  1. 1.
    Goodman M, Naiman DQ, LaKind JS. Systematic review of the literature on triclosan and health outcomes in humans. Crit Rev Toxicol. 2018;48:1–51.CrossRefGoogle Scholar
  2. 2.
    Chattopadhyay D. Antibacterial consumer products: how reliable are they? Resonance. 2017;22:761–7.CrossRefGoogle Scholar
  3. 3.
    McNamara PJ, Levy SB. Triclosan: an instructive tale. Antimicrob Agents Chemother. 2016;60:7015–6.PubMedPubMedCentralGoogle Scholar
  4. 4.
    Lee HR, Hwang KA, Nam KH, Kim HC, Choi KC. Progression of breast cancer cells was enhanced by endocrine-disrupting chemicals, triclosan and octylphenol, via an estrogen receptor-dependent signaling pathway in cellular and mouse xenograft models. Chem Res Toxicol. 2014;27:834–42.CrossRefGoogle Scholar
  5. 5.
    Lee GA, Choi KC, Hwang KA. Kaempferol, a phytoestrogen, suppressed triclosan-induced epithelial-mesenchymal transition and metastatic-related behaviors of MCF-7 breast cancer cells. Environ Toxicol Pharmacol. 2017;49:48–57.CrossRefGoogle Scholar
  6. 6.
    Bever CS, Rand AA, Nording M, Taft D, Kalanetra KM, Mills DA, Hammock BD. Effects of triclosan in breast milk on the infant fecal microbiome. Chemosphere. 2018;203:467–73.CrossRefGoogle Scholar
  7. 7.
    Wang CF, Tian Y. Reproductive endocrine-disrupting effects of triclosan: population exposure, present evidence and potential mechanisms. Environ Pollut. 2015;206:195–201.CrossRefGoogle Scholar
  8. 8.
    Archer E, Petrie B, Kasprzyk-Hordern B, Wolfaardt GM. The fate of pharmaceuticals and personal care products (PPCPs), endocrine disrupting contaminants (EDCs), metabolites and illicit drugs in a WWTW and environmental waters. Chemosphere. 2017;174:437–46.CrossRefGoogle Scholar
  9. 9.
    Halden RU, Lindeman AE, Aiello AE, Andrews D, Arnold WA, Fair P, McNeill K. The florence statement on triclosan and triclocarban. Environ Health Perspect. 2017;125:064501.CrossRefGoogle Scholar
  10. 10.
    Fu Q, Liao C, Du X, Schlenk D, Gan J. Back conversion from product to parent: methyl triclosan to triclosan in plants. Environ Sci Technol Lett. 2018;5:181–5.CrossRefGoogle Scholar
  11. 11.
    Kaur H, Bansiwal A, Hippargi G, Pophali GR. Effect of hydrophobicity of pharmaceuticals and personal care products for adsorption on activated carbon: adsorption isotherms, kinetics and mechanism. Environ Sci Pollut Res. 2017;21:1–13.Google Scholar
  12. 12.
    Sharipova AA, Aidarova SB, Bekturganova NE, Tleuova A, Schenderlein M, Lygina O, Miller R. Triclosan as model system for the adsorption on recycled adsorbent materials. Colloids Surf A. 2016;505:193–6.CrossRefGoogle Scholar
  13. 13.
    Wang F, Lu X, Peng W, Deng Y, Zhang T, Hu Y, Li XY. Sorption behavior of bisphenol a and triclosan by graphene: comparison with activated carbon. ACS Omega. 2017;2:5378–84.CrossRefGoogle Scholar
  14. 14.
    McUmber AC, Randolph TW, Schwartz DK. Electrostatic interactions influence protein adsorption (but not desorption) at the silica–aqueous interface. J Phys Chem Lett. 2015;6:2583–7.CrossRefGoogle Scholar
  15. 15.
    Carvajal-Bernal AM, Gómez-Granados F, Giraldo L, Moreno-Piraján JC. Calorimetric evaluation of activated carbons modified for phenol and 2, 4-dinitrophenol adsorption. Adsorption. 2016;22:13–21.CrossRefGoogle Scholar
  16. 16.
    Yoon G, Kim H, Park I, Kang K. Conditions for reversible na intercalation in graphite: theoretical studies on the interplay among guest ions, solvent, and graphite host. Adv Energy Mater. 2017;7:106–26.CrossRefGoogle Scholar
  17. 17.
    Anastopoulos I, Kyzas GZ. Are the thermodynamic parameters correctly estimated in liquid-phase adsorption phenomena? J Mol Liq. 2016;218:174–85.CrossRefGoogle Scholar
  18. 18.
    Thommes M, Kaneko K, Neimark AV, Olivier JP, Rodriguez-Reinoso F, Rouquerol J, Sing KS. Physisorption of gases, with special reference to the evaluation of surface area and pore size distribution (IUPAC Technical Report). Pure Appl Chem. 2015;87:1051–69.CrossRefGoogle Scholar
  19. 19.
    Boehm HP. Some aspects of the surface chemistry of carbon blacks and other carbons. Carbon. 2003;32:759–69.CrossRefGoogle Scholar
  20. 20.
    Babić BM, Milonjić SK, Polovina MJ, Kaludierović BV. Point of zero charge and intrinsic equilibrium constants of activated carbon cloth. Carbon. 1999;37:477–81.CrossRefGoogle Scholar
  21. 21.
    Gokce Y, Aktas Z. Nitric acid modification of activated carbon produced from waste tea and adsorption of methylene blue and phenol. Appl Surf Sci. 2014;313:352–9.CrossRefGoogle Scholar
  22. 22.
    Rodrigues S, Pinto GA. Ultrasound extraction of phenolic compounds from coconut (Cocos nucifera) shell powder. J Food Eng. 2007;80:869–72.CrossRefGoogle Scholar
  23. 23.
    Szymański GS, Karpiński Z, Biniak S, Światkowski A. The effect of the gradual thermal decomposition of surface oxygen species on the chemical and catalytic properties of oxidized activated carbon. Carbon. 2002;40:2627–39.CrossRefGoogle Scholar
  24. 24.
    da Silva WL, Salomão AA, Vila MM, Tubino M. Influence of water and ultraviolet irradiation on the induction period of the oxidation of biodiesel. J Braz Chem Soc. 2017;28:676–80.Google Scholar
  25. 25.
    Aleanizy FS, Alqahtani F, Al Gohary O, El Tahir E, Al Shalabi R. Determination and characterization of metronidazole–kaolin interaction. Saudi Pharm J. 2015;2015(23):167–76.CrossRefGoogle Scholar
  26. 26.
    Sharipova AA, Aidarova SB, Bekturganova NY, Tleuova A, Kerimkulova M, Yessimova O, Miller R. Triclosan adsorption from model system by mineral sorbent diatomite. Colloids Surf A. 2017;532:97–101.CrossRefGoogle Scholar
  27. 27.
    Zhao Q, Zhang S, Zhang X, Lei L, Ma W, Ma C, Xing B. Cation–Pi interaction: a key force for sorption of fluoroquinolone antibiotics on pyrogenic carbonaceous materials. Environ Sci Technol. 2017;51:13659–67.CrossRefGoogle Scholar
  28. 28.
    Gao Q, Zhu Y, Ruan Y, Zhang Y, Zhu W, Lu X, Lu L. Effect of adsorbed alcohol layers on the behavior of water molecules confined in a graphene nanoslit: a molecular dynamics study. Langmuir. 2017;33:11467–74.CrossRefGoogle Scholar

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  1. 1.Departamento de Química, Facultad de CienciasUniversidad Nacional de ColombiaBogotáColombia
  2. 2.Departamento de Química, Facultad de CienciasUniversidad de los AndesBogotáColombia

Personalised recommendations