TY - JOUR ID - 69399 TI - Pb(II) Removal from Synthetic Wastewater Using Kombucha Scoby and Graphene Oxide/Fe3O4 JO - Physical Chemistry Research JA - PCR LA - en SN - 2322-5521 AU - Mousavi, Seyyed Mojtaba AU - Hashemi, Seyyed Alireza AU - Amani, Ali Mohammad AU - Esmaeili, Hossein AU - Ghasemi, Younes AU - Babapoor, Aziz AU - Mojoudi, Fatemeh AU - Arjomand, Omid AD - Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran AD - Department of Chemical Engineering, Bushehr Branch, Islamic Azad University, Bushehr, Iran AD - Department of Chemical Engineering, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran AD - Department of Environment, Faculty of Natural Resources, College of Agriculture & Natural Resources, University of Tehran, Karaj, Iran AD - Department of Chemical Engineering, South Tehran Branch, Islamic Azad University, Tehran. Iran Y1 - 2018 PY - 2018 VL - 6 IS - 4 SP - 759 EP - 771 KW - graphene oxide KW - Magnetic nanoparticles KW - Pb(II) KW - Kombucha Scoby KW - Adsorption DO - 10.22036/pcr.2018.133392.1490 N2 - Kombucha Scoby is a colony consisted from bacteria, yeast and cellulosic pellicle that present fantastic performances in various fields. Besides anti-toxicity and antimicrobial specifications of Kombucha scoby, this unique colony can be used for waste water treatment and removal of heavy metals. Herein, efficiency of graphene oxide/Fe3O4 nanoparticles (GO/Fe3O4) and Kombucha Scoby in the removal of Pb (II) from synthetic wastewater were examined and compared. The characteristics of GO/Fe3O4 nanoparticles were analyzed using FTIR and SEM. Moreover, the effect of significant parameters such as pH (1-7), temperature (10-60 oC) and amount of adsorbent (1-200 g/L) on the removal of Pb (II) ion from aqueous solution was investigated. Obtained results showed that the maximum adsorption efficiency was obtained at a temperature of 50 oC and adsorbent amount of 0.3 and 15 g using GO/Fe3O4 and Kombucha Scoby, respectively. Additionally, pHPZC values of 6.1 and 6.2 were obtained for GO/Fe3O4 and Kombucha Scoby, respectively. The maximum adsorption efficiency for GO/Fe3O4 and Kombucha Scoby were found to be 98.08 and 99.73 %, respectively. Likewise, the adsorption isotherm behavior of Pb (II) on adsorbents were investigated using Langmuir and Freundlich models. Achieved results showed that the Langmuir isotherm model was better fitted with experimental data. Furthermore, the maximum adsorption capacity by Langmuir model for GO/Fe3O4 nanoparticles and Kombucha Scoby were found to be about 114.9 and 126.6 mg/g, respectively. Generally, achieved results revealed that Kombucha Scoby, which is a cost affordable colony, can remove Pb (II) ions from water better than GO/Fe3O4. UR - https://www.physchemres.org/article_69399.html L1 - https://www.physchemres.org/article_69399_89f6bbfebb22af942db60e0adf3c27ad.pdf ER -