Examination of the influence of phenyltrimethylammonium chloride (PTMA) concentration on acetochlor adsorption by modified montmorillonite
Samo za registrovane korisnike
2018
Autori
Kaluđerović, Lazar M.Tomić, Zorica P.
Asanin, Darko P.
Durovic-Pejcev, Rada D.
Kresović, Branka
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
The results presented in this paper show an impact of the concentration of the aromatic organic cation on the adsorption of acetochlor on the surface of the organic-modified montmorillonite. Natural montmorillonite from Bogovina (Boljevac municipality, Serbia) was used for organic modification in this experiment. Cation exchange capacity of this montmorillonite (86mmol 100g(-1) of clay) was determined using the methylene blue method. In pretreatment, montmorillonite was modified with NaCl. For the purpose of organic modification, three different concentrations of phenyltrimethylammonium chloride (PTMA) have been selected, based on calculated CEC value: 43mmol 100g(-1) of clay (0.5 CEC), 86mmol 100g(-1) of clay (1 CEC) and 129mmol 100g(-1) of clay (1.5 CEC). The changes in the properties of the inorganic and organic modified montmorillonite were examined using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and batch equilibrium method. Freundlich coefficients sh...ow higher uptake of the herbicide by montmorillonite modified with PTMA, compared to inorganic-modified montmorillonite. The results also indicate the influence of the organic cation concentration on the adsorption of the selected herbicide.
Ključne reči:
Montmorillonite / phenyltrimethylammonium chloride / batch equilibrium method / adsorption / infrared spectroscopy / X-ray diffractionIzvor:
Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Was, 2018, 53, 8, 503-509Izdavač:
- Taylor & Francis Inc, Philadelphia
Finansiranje / projekti:
- Minerali Srbije: sastav, struktura, geneza, primena i doprinos održanju životne sredine (RS-MESTD-Basic Research (BR or ON)-176010)
- Proučavanje biljnih patogena, artropoda, korova i pesticida u cilju razvoja metoda bioracionalne zaštite bilja i proizvodnje bezbedne hrane (RS-MESTD-Technological Development (TD or TR)-31043)
DOI: 10.1080/03601234.2018.1462930
ISSN: 0360-1234
PubMed: 29708850