Experimental and theoretical approaches to unveil the interaction mechanisms of carbon dots with 4-nitrophenol.

Developing a non-toxic, cost-effective, biocompatible, selective, and sensitive optical sensor for the optical detection of 4-nitrophenol (4-NP) has been challenging yet significant. Among carbon-based materials, the selectivity of carbon dots toward 4-NP is a key area of research, and a comprehensive understanding is crucial to broaden its practical application. Our unique contribution to this field involves synthesizing and testing different N-doped carbon dots (CDs) for selective 4-NP detection through absorbance and photoluminescence.

Ultralow-Concentration Pt-Decorated Carbon Sphere Catalyst for Enhanced Hydrogen Evolution Reaction.

Ultralow decoration of platinum nanoparticles (Pt NPs) (0.32 wt %) onto carbon spheres (CS) has been developed for hybrid formation, using hydrothermal heat treatment, followed by chemical reduction of nanoparticles. The successful decoration of CSs bearing amine groups with platinum nanoparticles was confirmed directly by X-ray photoelectron spectroscopy.

Na and Cl adsorption derived enhancement in 4-nitrophenol reduction using Au/Ag nanoparticle: An experimental and theoretical study.

4-Nitrophenol (4-NP) is an organic contaminant attached to textiles, pharmaceuticals, and pesticides. Its presence has been increasingly detected in various water bodies such as lakes, rivers, and occasionally in drinking water. The present work shows the reduction of 4-NP using a hybrid catalytic system composed of gold and silver nanoparticles supported onto the biogenic porous silica (AgAu-SiO).

Exploring PtAg onto silanized biogenic silica as an electrocatalyst for H evolution: A combined experimental and theoretical investigation.

The task of creating a remarkably stable and effective electrochemical catalyst for efficient hydrogen evolution is arduous, primarily due to the multitude of factors that need to be taken into account for the industrial utilization of Pt. In this work, hybrid formation through in-situ reduction of Pt onto biogenic porous silica (Pt-SiO) is tested for its use as an efficient catalyst for hydrogen production. Exceptionally high electrocatalytic activity and excellent reusability of catalysts up to 200 cycles have been demonstrated.

Advances in 4-Nitrophenol Detection and Reduction Methods and Mechanisms: An Updated Review.

This review emphasizes the progress in identifying and eliminating para-nitrophenol (4-NP), a toxic organic compound. It covers various strategical methods and materials, including organic and inorganic nanomaterials, for detecting and reducing 4-NP. Detection techniques such as electrochemical methods.