Adsorption Study of Lead Ions Onto Sulfur/Reduced Graphene Oxide Composite

Authors

Mahsa Moshari, Iran University of Science and Technology
Amin Mehrehjedy, University of Southern MississippiFollow
Mahdi Heidari-Golafzania, Iran University of Science and Technology
Mahboubeh Rabbani, Iran University of Science and TechnologyFollow
Saeed Farhadi, Iran University of Science and Technology

Document Type

Article

Publication Date

2-1-2021

Department

Chemistry and Biochemistry

School

Mathematics and Natural Sciences

Abstract

In this study, reduced graphene oxide modified by sulfur (S/RGO) is synthesized through the green method. S/RGO is used as a catalyst for the elimination of lead ions (Pb²⁺) through the adsorption. The effects of different parameters on adsorption of lead ions through S/RGO are studied. Those parameters include the amount of adsorbent, pH of the solution, time of adsorption, and initial concentration of Pb⁺². The scanning electron microscope (SEM), X-ray Photoelectron Spectroscopy (XPS), and Infrared spectroscopy (IR) are used for the characterization of as-prepared S/RGO samples. The mechanism of removal of lead ions by the new catalyst is also investigated. To study the kinetic aspects of the adsorption of Pb²⁺ by S/RGO, three different models are used including, pseudo-first-order, pseudo-second-order, and intraparticle diffusion. Both Langmuir and Freundlich isotherms were investigated in our work.

Publication Title

Chemical Data Collections

Volume

31

Recommended Citation

Moshari, M., Mehrehjedy, A., Heidari-Golafzania, M., Rabbani, M., Farhadi, S. (2021). Adsorption Study of Lead Ions Onto Sulfur/Reduced Graphene Oxide Composite. Chemical Data Collections, 31.
Available at: https://aquila.usm.edu/fac_pubs/18346