TY - JOUR ID - 40214 TI - The study of an azo dye removal from liquid medium by modified clay JO - Journal of Advances in Environmental Health Research JA - JAEHR LA - en SN - 2676-3478 AU - Omidi-Khaniabadi, Yusef AU - Jafari, Ali AU - Jourvand, Mehdi AU - Saeedi, Sedigheh AU - Basiri, Hassan AU - Nourmoradi, Heshmatollah AU - Goudarzi, Gholamreza AU - Mirza-Heidari, Ali AU - Daryanoosh, Seyed Mohammad AU - Kamarehei, Bahram AU - Sadeghi, Shahram AU - Javad Mohammadi, Mohammad AD - Health and Care system of Karron, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran AD - Assistant Professor, Lorestan University of Medical Sciences, Khorramabad, Iran AD - Department of Environmental Health Engineering, School of Health, Lorestan University of Medical Sciences, Khorramabad, Iran AD - Sama Technical and Vocational College, Izeh Branch, Islamic Azad University, Izah, Iran AD - Department of Environmental Health Engineering, School of Health, Ilam University of Medical Sciences, Ilam, Iran AD - Environmental Technologies Research Center (ETRC), Jundishapur University of Medical Sciences, Ahvaz, Iran AD - Health Care System of Karoon, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran AD - Environmental Health Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran AD - Abadan School of Medical Sciences, Abadan, Iran Y1 - 2016 PY - 2016 VL - 4 IS - 1 SP - 9 EP - 17 KW - Azo KW - Bromocresol Green KW - Clay KW - Hexadecyltrimethylammonium Bromide DO - 10.22102/jaehr.2016.40214 N2 - In this batch study, montmorillonite was modified by a cationic surfactant [hexadecyltrimethylammonium bromide (HDTMA-MMT)] and used as sorbent to remove bromocresol green (BCG) from aqueous solutions. The effect of several factors such as surfactant loading rate onto the clay, contact time, pH, adsorbent dosage, dye concentration, and ion strength were investigated on the sorption. The equilibrium time for BCG sorption was reached at contact time of 20 minutes. Fitting the experimental data to different kinetic and isotherm models showed that the experimental data are well described by pseudo-second-order kinetic (R2 > 0.99) and Freundlich isotherm (R2 > 0.99) models. According to the results of this study, HDTMA-MMT can be considered as a low-cost, eco-friendly, and highly effective option for the sorption of BCG from aqueous solutions. UR - https://jaehr.muk.ac.ir/article_40214.html L1 - https://jaehr.muk.ac.ir/article_40214_972ad1c2808fb82c6a0c1872de2d272c.pdf ER -