Synthesis of graphene oxide from agave fiber Tequilana Weber by hydrothermal method

Abstract

Lignocellulosic residues are an important biomass source in Mexico, which can be considered as starting materials for obtaining carbon materials. In this work, carbon materials were produced by pyrolysis of agave fiber (AF). The results obtained revealed that the hydrothermal process was successfully used for the synthesis of carbon fibers and subsequently potentiate the production of graphite sheets and graphene oxide (GO), after determining and optimizing the reaction conditions. The formation of graphite and GO was indicated by XRD, Raman spectroscopy and TGA thermal analysis, the latter evaluated the carbon oxidation range. Scanning electron microscope showed the samples morphology and microstructure of the AF Tequilana Weber and the synthesized products (Graphite-600 °C, GO-800 °C and GO-1000 °C), being all of them carbon allotropes, they presented size and variable thickness, with potential surface characteristics useful in various industrial applications. The hydrothermal and thermal processes were considered an economic and environmental way of obtaining materials under inert conditions, especially to produce GO, which is a material that has many useful properties and a plethora of new applications, like a more affordable support for catalysts, absorbent, semiconductor.

Hydrothermal Treatment of Biomass Feedstocks for Sustainable Production of Chemicals, Fuels, and Materials: Progress and Perspectives

“…A recent study used lignocellulosic residue (gave fiber Tequilana Weber) as a substrate for the production of graphene oxide under hydrothermal process at higher temperature (800−1000 °C), and the thickness of the graphene oxide sheet was below 20 nm. 485 These authors have reported that the materials can be used for various purposes, including adsorption and catalysis without further purification. Zhang et al synthesized magnetic graphene from palm kernel shell (PKS) based on magnetization with the addition of two types of iron salts (FeSO 4 •7H 2 O and FeCl 3 •6H 2 O).…”

“…The synthesized graphene was used in lithium-ion batteries as an anode material, and it shows high reversible capacity, superior rate capability, and good cycling performance. A recent study used lignocellulosic residue (gave fiber Tequilana Weber ) as a substrate for the production of graphene oxide under hydrothermal process at higher temperature (800–1000 °C), and the thickness of the graphene oxide sheet was below 20 nm . These authors have reported that the materials can be used for various purposes, including adsorption and catalysis without further purification.…”