去除有毒六价铬的氧化石墨烯纳米颗粒：动力学、等温线及热力学研究

Removal of toxic hexavalent chromium graphene oxide nanoparticles: study of kinetics, isotherms, and thermodynamics.

作者信息

Khdoor Zohor, Makharza Sami, Qurie Mohannad, Fohely Firas, Abu Taha Abdallah, Hampel Silke

机构信息

Faculty of Science and Technology, Department of Chemistry, Hebron University P. O. Box 40 Hebron West Bank Palestine.

College of Medicine, Hebron University P. O. Box 40 Hebron West Bank Palestine

出版信息

RSC Adv. 2024 Aug 5;14(34):24345-24351. doi: 10.1039/d4ra03697b.

In this study, graphene oxide (GO) was prepared by the Hummers' method from graphite material. The adsorption potential of GO-200 nm for the removal of Cr(vi) ions was investigated. Fourier transform infrared (FTIR) spectroscopy was used to analyze Cr(vi) before and after adsorption. The adsorption isotherm was fitted by the Langmuir model and the maximum adsorption capacity of the GO was 41.27 mg g at 25 °C. Thermodynamic parameters (Δ°), (Δ°), and (Δ°) were calculated and exhibited as +2.63 kJ mol K, +4.30 kJ mol K, and +5.56 kJ mol K at 30 mg L of Cr(vi) solution, respectively.