Open AccessAdsorption characteristics of 2,4-dichorophenoxy acetic acid onto surfactant modified titania nanoparticles
Author(s) -
Dung Le Thi,
Loan Nguyen Quynh,
Thang Nguyen Duc,
Lê Thanh Hải,
Đức Phạm Tiến
Publication year - 2021
Publication title -
xúc tác và hấp phụ
Language(s) - English
Resource type - Journals
ISSN - 0866-7411
DOI - 10.51316/jca.2021.061
Subject(s) - adsorption , pulmonary surfactant , acetic acid , bromide , nanoparticle , transmission electron microscopy , surface modification , cationic polymerization , nuclear chemistry , materials science , chemical engineering , chemistry , inorganic chemistry , organic chemistry , nanotechnology , engineering
The present study investigated adsorption of 2,4-dichorophenoxy acetic acid (2,4-D) on titania (TiO2) nanoparticles with surface modification by cationic surfactant, cetyltrimethylammonium bromide (CTAB). Titania nanoparticles which were successfully synthesized by sol-gel method, were characterized by X-ray diffraction (XRD) and Transmission electron microscopy (TEM). Surface modification of TiO2 with CTAB enhanced the removal of 2,4-D significantly. Some effective conditions affect to the removal of 2,4-D using CTAB modified TiO2 such as pH and adsorbent dosage were systematically studied and found to be 5 and 10 mg/mL, respectively. Adsorption mechanisms of 2,4-D onto CTAB modified TiO2 was suggested based on the change in surface charge after adsorption.