Enhancing Cementitious Composites with Functionalized Graphene Oxide-Based Materials: Surface Chemistry and Mechanisms

Abstract

Graphene oxide-based materials (GOBMs) have been widely explored as nano-reinforcements in cementitious composites due to their unique properties. Oxygen-containing functional groups in GOBMs are crucial for enhancing the microstructure of cementitious composites. A better comprehension of their surface chemistry and mechanisms is required to advance the potential applications in cementitious composites of functionalized GOBMs. However, the mechanism by which the oxygen-containing functional groups enhance the response of cementitious composites is still unclear, and controlling the surface chemistry of GOBMs is currently constrained. This review aims to investigate the reactions and mechanisms for functionalized GOBMs as additives incorporated in cement composites. A variety of GOBMs, including graphene oxide (GO), hydroxylated graphene (HO-G), edge-carboxylated graphene (ECG), edge-oxidized graphene oxide (EOGO), reduced graphene oxide (rGO), and GO/silane composite, are discussed with regard to their oxygen functional groups and interactions with the cement microstructure. This review provides insight into the potential benefits of using GOBMs as nano-reinforcements in cementitious composites. A better understanding of the surface chemistry and mechanisms of GOBMs will enable the development of more effective functionalization strategies and open up new possibilities for the design of high-performance cementitious composites.

Unveiling the Influential Factors and Heavy Industrial Applications of Graphene Hybrid Polymer Composites

“…In essence, posttreatment and functionalization strategies in graphene-based hybrid filler-polymer composites constitute sophisticated techniques that unlock the full potential of these materials. They ensure the composite's robustness and longevity and empower it with diverse functionalities [72,73]. As the field of materials science continues to evolve, the synergy between graphene and tailored post-treatment and functionalization processes offers exciting prospects for developing innovative and highperformance materials that can revolutionize various industries [74].…”

Unveiling the Influential Factors and Heavy Industrial Applications of Graphene Hybrid Polymer Composites

“…In essence, post-treatment and functionalization strategies in graphene-based hybrid-filler polymer composites constitute sophisticated techniques that unlock the full potential of these materials. They ensure the composite's robustness and longevity and empower it with diverse functionalities [84,85]. As the field of materials science continues to evolve, the synergy between graphene and tailored post-treatment and functionalization processes offers exciting prospects for developing innovative and high-performance materials that can revolutionize various industries [86].…”

An Electrochemical Sensor Based on Three-Dimensional Porous Reduced Graphene and Ion Imprinted Polymer for Trace Cadmium Determination in Water

“…As shown in Figure 1a, PS templates (1 µm in diameter) prepared using the vertical deposition method exhibited a uniform single layer on the electrode surface. Moreover, because of the abundant surface oxygen functional groups, graphene oxide (GO) nanosheets were used as the precursor for the 3DPrGO [27]. Due to the presence of the -OH and -COOH groups, GO could be stably dispersed in water and had a negative surface charge.…”