_1688088361 1688088361 Hamid Shirkhanloo sahar.zi67@gmail.com Hamid Shirkhanloo Analytical Methods in Environmental Chemistry Journal AMECJournal 2645-5382 2645-5552 06 30 2023 6 02 10.24200/amecj.v6.i02 http://journal.amecj.com/index.php/AMECJ-01/issue/view/26 Aliakbar Imani MohammadReza Rezaei Kahkha Rouhollah Parvari Maryam Faraji Ali Faghihi-Zarandi Toluene is one of the most dangerous and, simultaneously, the most consumed substances in various factories. Toluene strongly affects the central nervous system. The numerous side effects caused by exposure to toluene indicate the removal of toluene vapours from the air in the workplace. This study aims to use the removal of toluene vapours from the air using a Fe-MOFs metal-organic substrate for the first time in the world and to investigate efficient methods to increase the efficiency of removing toluene vapours from the air. This experimental study was carried out on a laboratory scale. After the iron metal-organic framework (Fe-MOFs) was synthesized, the components affecting the adsorption rate, such as reaction time (5-20 min), initial concentration (100-400 mg L-1), adsorbent amount, and temperature (25-80oC) were analyzed and optimized. Then, the efficiency of removing toluene vapours from the air was determined using a gas chromatography device. The absorption capacity of toluene was obtained by the desired adsorbent, 337.2 mg g-1. Also, the effect of different parameters on toluene absorption was investigated and optimized. The maximum absorption for concentration (300 mg L-1), temperature (75oC), and contact time (160s)  obtained as 340 mg g-1, 331 mg g-1, and 325 mg g-1, respectively.  06 28 2023 71 84 10.24200/amecj.v6.i02.232 http://journal.amecj.com/index.php/AMECJ-01/article/view/232 http://journal.amecj.com/index.php/AMECJ-01/article/download/232/503 http://journal.amecj.com/index.php/AMECJ-01/article/download/232/503 http://journal.amecj.com/index.php/AMECJ-01/article/download/232/504