Synthesis and characterization of aluminium modified graphene oxide: an approach towards defluoridation of potable water

Abstract

An approach towards the synthesis of aluminum modified graphene oxide (GO) has been studied in the present manuscript. Graphene oxide has been modified by the aluminum sulfate followed by alkalization to synthesized Al-GO composite. GO and Al-GO composite has been characterization by the means of different techniques i.e. XRD, FT-IR, FT-Raman, TEM, SEM, TGA and elemental mapping. Analysis confirmed the formation of GO and Al-GO composite. The prepared GO composite has been checked for the removal of fluoride from the potable water with different initial concentration of fluoride ions. Composite shows it’s effectiveness for the removal of fluoride throughout the pH range. The maximum adsorption capacity and Langmuir constant determined for the adsorbent dose of 1 g L⁻¹ are found to be 38.31 mg g⁻¹ and 0.5252 L mg⁻¹ respectively.GRAPHICAL ABSTRACT

Graphical Abstract

Keywords:

• Graphene oxide
• XRD
• TEM
• defluoridation
• potable water

Acknowledgments

Authors are also thankful to Analytical Discipline and Centralized Instrument facility, CSMCRI, Bhavnagar for instrumental support.