Improved Graphene-Oxide-Derived Carbon Sponge for Effective Hydrocarbon Absorption and C–C Coupling Reaction

Graphenic sponges have created tantamount interest due to their special affinity for absorbing a broad range of petroleum oils and solvents resulting from controllable surface wettability. A major challenge is to fabricate such materials with surface hydrophilicity coexisting with hydrophobicity. Herein, we report a scalable self-assembly of randomly oriented improved graphene oxide (IGO) sheets into a graphene oxide sponge (GOS-H) with uniform cylindrical shape via a hydrothermal method. Extensive characterization of GOS-H using Raman microspectroscopy, Raman imaging, X-ray photoelectron spectroscopy (XPS), and electron microscopic (SEM and HRTEM) techniques suggests the sponge surface is hydrophobic with some hydrophilic oxygen content and has defect sites and roughness associated with voids formation. These features and conformal C–O coating on the basal plans result in high-diesel-range alkanes absorption from pure alkanes as well as from alkane–water mixture, which could enable as-synthesized GOS-H as an efficient and inexpensive sponge for hydrocarbons cleaning from contaminated water. In addition, GOS-H exhibits high catalytic activity for C–C coupling reaction of biomass-derived furfural and 2-methylfuran under solventless conditions to produce jet fuel-ranged high-carbon oxygenates with a branched backbone.

Improved Graphene-Oxide-Derived Carbon Sponge for Effective

stage_id=1974-checksum=4f9689e4df830a6d198cfe1fcfd2e0d51ff58c64

Nanomaterials, Free Full-Text

CBNs & hydrogels as scaffolds in tissue engineering

Highlights Instituto de Ciencia de Materiales de Sevilla

Pythium oligandrum-derived carbon/graphene oxide as sensitized substrate: large-scale preparation and enhancing photocatalytic hydrogen evolution

Friction coefficient of DLC film deposited on silicon substrates with

Nanomaterials, Free Full-Text

Recent progress in metal–organic framework/graphene-derived

学术成果

Joseph P. Smith, Ph.D. - Director, Data-Rich Experimentation, Process R&D Enabling Technologies - Merck

Selective adsorption of organic dyes from aqueous environment using fermented maize extract-enhanced graphene oxide-durian shell derived activated carbon composite - ScienceDirect

Graphene-based nanoarchitecture as a potent cushioning/filler in polymer composites and their applications - ScienceDirect

Biosensors, Free Full-Text