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Synthesis of fluorescent carbide-derived carbons (CDCs) remains a big challenge for material scientists. Herein, we report an unprecedented method for the synthesis of amphiphilic carbide-derived graphene quantum dots (GQDs) from layered Ti3C2Tx MXene using solvothermal treatment of Ti3C2Tx MXene in dimethylformamide (DMF). Our findings indicate that DMF can simultaneously act as reaction media and...
Graphene-based materials have emerged as novel and green alternatives to metals/oxides for environmental catalysis. This study integrates deliberate material fabrication with density functional theory (DFT) calculations to probe intrinsic active sites, e.g. the defects and oxygen functionalities on graphene for activating OO bond in peroxymonosulfate (PMS) toward catalytic oxidation. The reaction...
Metal-free catalysis has demonstrated competitive performance in energy conversion and chemical synthesis, yet scenarios in environmental catalysis are scant. The application of carbocatalysis for preventing secondary contamination by heavy/noble metals is envisaged as benign remediation. In this paper, we report a facile alteration of the surface chemistry of nanodiamond, a biocompatible nanocarbon,...
Herein a novel multifunctional nanoplatform based on surface engineered mesoporous carbon nanoparticle (MCN) is developed for effective dual-triggered synergistic cancer therapy. MCNs employed in the study not only function as near-infrared absorbing agents but also as nanocarriers with a high drug loading efficiency. The surface modification of MCN with biomacromolecules (hyaluronic acid) through...
Based on the storage mechanism of methane in wet carbon, the pore size of activated carbon must match the dimension of methane hydrates, and 1.6–2.8nm was recognized as the optimal pore size. Targeting at the optimal pore size, a progressive activation process was applied on corncob precursors and a carbon possessing abundant pores of the optimal size was prepared. Both gravimetric and volumetric...
An ordered mesoporous carbon was synthesized using SBA-15 as the template. The sorption isotherms of methane on the synthesized carbon material were collected. Its ordered structure was confirmed by the XRD, SEM and TEM examinations. The BET surface area is 1100–1200m 2 /g, the total pore volume is 1.24–1.30cm 3 /g, and the pore size distribution is very narrow and centered at 2–5nm...
The dynamic behavior of charging/discharging methane onto/from water-preloaded activated carbon was studied at different conditions. It was shown that methane hydrate could form quickly in the porous space of carbon at the condition of 275K and pressures beginning with 4.12MPa. The stored methane could be continuously released at a constant flowrate for the whole discharging process. The packing density...
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