▎ 摘　　要

Although graphene has great potential in mitigating hazardous constituents that exist in wastewater, its stability, aggregation, and reusability are points of concern. To overcome this problem, we have prepared graphene incorporated with titanium oxide recyclable adsorbent by a. hydrothermal strategy for the removal of fluoride from an aqueous system. The pristine graphene oxide with titanium oxide graphene (Ti02 GO) nanocomposite was analyzed using several interpretative tools, namely, field emission scanning electron microscopy, Brunauer Emmett Teller, Fourier transform infrared, X-ray diffraction, and X-ray photoelectron spectroscopy. The Ti02 GO nanocomposite exhibited good adsorption toward the toxic fluoride ion, with an adsorption capacity of 342 mg/g at pH 6.0 and a high surface area of 278 m2/g. Thermodynamic parameters AG, AH, and AS revealed that adsorption is endothermic and spontaneous, and the equilibrium condition is favored by Langmuir, Freundlich, Dubinin Radushkevich, and Temkin adsorption isotherms. Adsorption desorption up to the sixth cycle without the release of nanomaterial in solution confirms its reusability. Consequently, Ti02 GO adsorbent is a promising adsorbent owing to its sustainability, reusability, and efficient adsorption, even in the presence of foreign ions in wastewater.