The Preparation of Graphene Oxide and Its Derivatives and Their Application in Bio-Tribological Systems

Abstract

Graphene oxide (GO) can be readily modified for particular applications due to the existence of abundant oxygen-containing functional groups. Graphene oxide-based materials (GOBMs), which are biocompatible and hydrophilic, have wide potential applications in biomedical engineering and biotechnology. In this review, the preparation and characterization of GO and its derivatives are discussed at first. Subsequently, the biocompatibility and tribological behavior of GOBMs are reviewed. Finally, the applications of GOBMs as lubricants in bio-tribological systems are discussed in detail.

Grapheneoxide: preparation, properties, applications (review)

“…Для синтезу окисненого графену можна використовувати багатошарові вуглецеві нанотрубки [33], графіт з дисперсним розміром частинок [34,35]. Хімічне перетворення графіту в оксид графену можна реалізовувати в промислових масштабах [36,37].…”

“…1) [35]. Спершу -окиснення графітового порошку з утворенням оксиду графіту, який можна легко диспергувати у воді або іншому полярному розчиннику завдяки наявності гідроксильних і епоксидних груп навколо базисних площин оксиду графіту та карбонільних і карбоксильних груп, розташованих по краях цих площин.…”

A Study on Physico-Mechanical and Anticorrosive Properties of Chemically Modified Graphene-Based Epoxy Nanocomposite Coatings

“…In addition, it can be used with nanoparticles to form Graphene nanoparticles composites coating and as a high quality coating materials solely [5]. However, graphene sheets are hard to be incorporated and distributed homogeneously into various matrices for applications [6]. Recently, research into Graphene-based materials, which includes Graphene, Graphene oxide (GO), reduced Graphene oxide (rGO), and Graphene embedded polymers, has demonstrated potential for applications in anti-corrosion coatings [4].…”

“…There are three major categories of functionalization: functionalization via organic species, functionalization via macromolecules and functionalization via nanoparticles [5]. The Graphene sheets are tightly attached to each other making them directly insoluble in any solvent while GO shows desirable dispersion behavior [6]. The reactive oxygenic groups, present on the edges (carbonyl and carboxyl groups) and planes (hydroxyl and epoxide groups) of GO sheets, can stabilize the dispersion of GO in aqueous media, enhance the interfacial bonding within the components, and facilitate the stress transfer in the composites, which render GO as attractive and promising nanoscale reinforcement fillers in polymer composites [7,8].…”

“…The reactive oxygenic groups, present on the edges (carbonyl and carboxyl groups) and planes (hydroxyl and epoxide groups) of GO sheets, can stabilize the dispersion of GO in aqueous media, enhance the interfacial bonding within the components, and facilitate the stress transfer in the composites, which render GO as attractive and promising nanoscale reinforcement fillers in polymer composites [7,8]. Therefore, in this work we adopted improved Tour method [6] to chemically modifying commercial graphene and investigated the effects of pristine Graphene and modified Graphene on physico-mechanical and anticorrosion properties of epoxy primer paints. In 2010 year, a report of an improved Hummers method [3 -5] for the preparation of GO which was studied by authos group of James M.Tourcomes from Rice University (Texas, USA) was published on ACS Nano journal [9].…”