Analysis of Toluene: Removal of toluene from the air s tream using a bed made of metal-organic frameworks adsorbent

Toluene is one of the mos t dangerous and, simultaneously, the mos t consumed subs tances in various factories. Toluene s trongly affects the central nervous sys tem. The numerous side effects caused by exposure to toluene indicate the removal of toluene vapours from the air in the workplace. This s tudy aims to use the removal of toluene vapours from the air using a Fe-MOFs metal-organic subs trate for the firs t time in the world and to inves tigate efficient methods to increase the efficiency of removing toluene vapours from the air. This experimental s tudy 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 inves tigated and optimized. The maximum absorption for concentration (300 mg L-1), temperature (75oC), and contact time (160s) were obtained as 340 mg g-1, 331 mg g-1, and 325 mg g-1, respectively. The obtained results indicate the suitability of the Fe-MOFs for the absorption of toluene vapours from the air before being determined by gas chromatography (GC-FID).