Graphene Oxide Research Articles

Conductive hydrophobic graphene oxide films via laser-scribed surface modification.

Conductive hydrophobic graphene oxide films via laser-scribed surface modification.

Few-layer MoS2 co-assembly with GO to optimize defect channels and stability of GO membranes for high-performance organic-inorganic separation.

The selective separation of organic compounds and inorganic salts is essential for wastewater recycling in fine chemical industries such as pharmaceuticals and pesticides. Membrane separation technology offers a promising solution. However, conventional organic membranes often face challenges related to precise separation and solvent resistance. While graphene oxide (GO) membranes exhibit excellent solvent resistance, their separation performance and structural stability require further improvement. In this study, we developed a GO/few-layer molybdenum disulfide (FLMoS2) membrane via co-assembly. The optimized GO/FLMoS2 membrane demonstrated a water permeability of 28.4 LMH/bar, approximately four times higher than conventional GO membranes, and achieved a separation factor exceeding 900 for organic/inorganic mixtures-among the highest reported for two-dimensional (2D) membranes. Comprehensive characterization, including low-field nuclear magnetic resonance (LF-NMR), revealed that this superior performance was attributed to controlled defect channels, enhanced interlayer cross-linking, and the intrinsic rigidity of FLMoS2, which provided high structural stability and minimal swelling. Moreover, mechanical strength assessments, including critical destructive load force and nanoindentation tests, confirmed significant improvement in structural robustness. As a result, the GO/FLMoS2 membrane maintained stable water permeability and separation efficiency over 100 hours of continuous operation and six chemical cleaning cycles, demonstrating its potential for sustainable wastewater treatment and resource recovery.

Self-supplying of hydrogen peroxide nanozyme-based colorimetric sensing array as electronic tongue for biothiol detection and disease discrimination.

Self-supplying of hydrogen peroxide nanozyme-based colorimetric sensing array as electronic tongue for biothiol detection and disease discrimination.

The dual selective adsorption mechanism on low-concentration Cu(II): Structural confinement and bridging effect.

The dual selective adsorption mechanism on low-concentration Cu(II): Structural confinement and bridging effect.

Construction of hybrid nanocatalyst with enhanced enzymatic and photo-Fenton catalytic activity for the efficient detoxification of profenofos.

Construction of hybrid nanocatalyst with enhanced enzymatic and photo-Fenton catalytic activity for the efficient detoxification of profenofos.

Urea-crosslinked 3D graphene oxide/MXene-SO3/cyclodextrin films for efficient and sustainable biodiesel production.

Urea-crosslinked 3D graphene oxide/MXene-SO3/cyclodextrin films for efficient and sustainable biodiesel production.

Electrochemical filtration system using hybrid materials between graphene oxide and metal organic framework for dichloroacetic acid reduction in water

Electrochemical filtration system using hybrid materials between graphene oxide and metal organic framework for dichloroacetic acid reduction in water

Electrical and dielectric behavior of PVA nanocomposites doped with graphene oxide: Effects of doping level and frequency

Electrical and dielectric behavior of PVA nanocomposites doped with graphene oxide: Effects of doping level and frequency

Optimizing mechanical properties of recycled aggregate concrete with graphene oxide and steel fibers: A predictive approach using ANN and RSM

Optimizing mechanical properties of recycled aggregate concrete with graphene oxide and steel fibers: A predictive approach using ANN and RSM

Isotherm, thermodynamic, and kinetic studies of dye adsorption on graphene oxides with varying oxidation degrees

Isotherm, thermodynamic, and kinetic studies of dye adsorption on graphene oxides with varying oxidation degrees

Magnetite/reduced graphene oxide composites: A sustainable strategy for selenium immobilization and improved corn growth.

Magnetite/reduced graphene oxide composites: A sustainable strategy for selenium immobilization and improved corn growth.

Preparation, characterization, and biocompatibility assessment of Mn2+ doped graphene oxide and reduced graphene oxide hydrothermally synthesized from Terminalia arjuna

Preparation, characterization, and biocompatibility assessment of Mn2+ doped graphene oxide and reduced graphene oxide hydrothermally synthesized from Terminalia arjuna

Polyglycerol‐Grafted Graphene Oxide with pH‐Responsive Charge‐Convertible Surface to Dynamically Control the Nanobiointeractions for Enhanced in Vivo Tumor Internalization

AbstractpH‐responsive charge‐convertible nanomaterials (NMs) ameliorate the treatment of cancer via simultaneously reducing nonspecific interactions during systemic circulation and improving targeted uptake within solid tumors. While promising, little is known about how the pH‐responsiveness of charge‐convertible NMs directs their interactions with biological systems, leading to compromised performance, including off‐target retention and low specificity to tumor cells. In the present study, polyglycerol‐grafted graphene oxide bearing amino groups (GOPGNH2) at different densities are reacted with dimethylmaleic anhydride (DMMA), a pH‐responsive moiety, to generate a set of charge‐convertible GOPGNH‐DMMA variants. This permits the assessment of a quantitative correlation between the structure of GOPGNH‐DMMA to their pH‐responsiveness, their dynamic interactions with proteins and cells, as well as their in vivo biological fate. Through a systematic investigation, it is revealed that GOPGNH115‐DMMA prepared from GOPGNH2 with higher amine density experienced fast charge conversion at pH 7.4 to induce non‐specific interactions at early stages, whereas GOPGNH60‐DMMA and GOPGNH30‐DMMA prepared from lower amine density retarded off‐target charge conversion to enhance tumor accumulation. Notably, GOPGNH60‐DMMA is also associated with enough amounts of proteins under acidic conditions to promote in vivo tumor internalization. The findings will inform the design of pH‐responsive NMs for enhanced treatment accuracy and efficacy.

Development of a sandwich-type electrochemical DNA sensor based on CeO2/AuPt nanoprobes for highly sensitive detection of hepatitis B virus DNA.

Development of a sandwich-type electrochemical DNA sensor based on CeO2/AuPt nanoprobes for highly sensitive detection of hepatitis B virus DNA.

Sulfhydryl-functionalized graphene oxide nanoparticles-adjusted ternary-reacted M-S-H cement achieves efficient solidification and stabilization of heavy metals and chloride salts in the municipal solid waste incineration fly ashes.

Sulfhydryl-functionalized graphene oxide nanoparticles-adjusted ternary-reacted M-S-H cement achieves efficient solidification and stabilization of heavy metals and chloride salts in the municipal solid waste incineration fly ashes.

Evaluating the performance of cement-reduced concrete using graphene oxide: Synergistic effects on mechanical properties

Evaluating the performance of cement-reduced concrete using graphene oxide: Synergistic effects on mechanical properties

High-performance binder-free supercapacitors based on electrochemically synthesized 2H-molybdenum disulfide/chlorine-doped graphene oxide (2H-MoS₂/Cl-GO) composite electrodes

High-performance binder-free supercapacitors based on electrochemically synthesized 2H-molybdenum disulfide/chlorine-doped graphene oxide (2H-MoS₂/Cl-GO) composite electrodes

Enhancing antistatic property of epoxy resin coatings via formation of conductive networks with fibrous polyaniline/reduced graphene oxide

Enhancing antistatic property of epoxy resin coatings via formation of conductive networks with fibrous polyaniline/reduced graphene oxide

Novel three-dimensional porous polyethyleneimine-functionalized graphene-sodium alginate-based aerogel for rapid extraction and sensitive detection of F-LCMs in human serum.

Novel three-dimensional porous polyethyleneimine-functionalized graphene-sodium alginate-based aerogel for rapid extraction and sensitive detection of F-LCMs in human serum.

Enhanced lithium extraction from high-sodium brines: Modification of a manganese-based ion sieve using hydroxylated graphene and graphene oxide

Enhanced lithium extraction from high-sodium brines: Modification of a manganese-based ion sieve using hydroxylated graphene and graphene oxide