TY - JOUR ID - 60608 TI - Study on the Application of Cucurbit[6]uril as a Nanoporous Adsorbent for the Removal of 2,4-Dinitrophenol from Wastewaters JO - Analytical and Bioanalytical Chemistry Research JA - ABCR LA - en SN - AU - Javinezhad, Shaghayegh AU - Larki, Arash AU - Nikpour, Yadollah AU - Saghanezhad, Seyyed Jafar AD - Khorramshahr University of Marine Science and Technology, Khorramshahr, Iran AD - ACECR-Production Technology Research Institute, Ahvaz, Iran Y1 - 2018 PY - 2018 VL - 5 IS - 2 SP - 217 EP - 228 KW - Cucurbit [6]uril KW - Nonporous KW - 2 KW - 4-Dinitrophenol KW - Langmuir KW - Removal DO - 10.22036/abcr.2018.113797.1180 N2 - In the present study, cucurbit[6]uril was used as a nonporous adsorbent for the removal of 2,4-dinitrophenol from aqueous solutions. The experiments were carried out in a batch system to optimize operation variables such as pH of solution, contact time, adsorbent dose and salt concentration. Langmuir, Freundlich and Tempkin isotherms were applied for the explanation of experimental data. The high removal yield was achieved at the real pH, 0.02 g of adsorbent dose and 10 min of contact time. The equilibrium adsorption was best described by the Langmuir isotherm model. The maximum monolayer adsorption capacity was found at 29.85 mg g-1for 2,4-dinitrophenol at 25 °C. The kinetics study showed that the adsorption process was described by pseudo-second order rate equation, and equilibrium was achieved after 10 min. The thermodynamic parameters indicated that the adsorption of 2,4-dinitrophenol on the cucurbit[6]uril was an endothermic and spontaneous process. The results of present study confirm the applicability of small amount of this adsorbent for efficient removal of 2,4-dinitrophenol from wastewater samples in short reasonable time. UR - https://www.analchemres.org/article_60608.html L1 - https://www.analchemres.org/article_60608_339fc70f24a85a35aea82bd39c49caac.pdf ER -