N-substituted CQDs impregnated by FeO heterostructure: Bifunctional catalyst for electro-catalytic and photo-catalytic detection of an environmental hazardous organic pollutant.

ortho-Nitroaniline (o-NA) compounds are deemed to be a strongly toxic pollutant in nature and potentially carcinogenic; however, they are frequently utilized to synthesize dyes, pesticides, medicines, fungicides, pigments, and other organic chemicals. Their detection in an aqueous medium is fundamentally required to avoid the potential hazardous being created by these compounds. In this study, a novel sensor based on an Iron oxide (FeO) containing highly dispersed nitrogen-doped carbon quantum dots (N-CQDs@FeO NFs) was demonstrated for the electrochemical detection of o-NA using differential pulse voltammetry (DPV) and cyclic voltammetry (CV) techniques.

Characterization of Solvent-Treated PEDOT:PSS Thin Films with Enhanced Conductivities.

The conducting polymer of poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) is one of the most important and intensively investigated organic conducting materials. The PEDOT:PSS water dispersions with various concentrations of poly (4-styrenesulfonic acid) solution (PSSAS) were synthesized by 3,4-ethylenedioxythiophene (EDOT) in the presence of water. The fabrication of the solvent-treated PEDOT:PSS films through spin coating and solvent treatment processes was achieved with a solvent of pure water mixed with acetone (or MeOH, EtOH) in a ratio of 50:50.

Electrochemical synthesis of nitrogen-doped carbon quantum dots decorated copper oxide for the sensitive and selective detection of non-steroidal anti-inflammatory drug in berries.

We report a sensitive non-steroidal anti-inflammatory drug aspirin (ASA) sensor studies using the nitrogen-doped carbon quantum dots (N-CQD) decorated copper oxide (CuO). A simplistic approach of electrochemical deposition method has been used to prepare the N-CQD incorporated with copper oxide (N-CQD/CuO) and the resulting composite has characterized by analytical techniques. Modified glassy carbon electrode of N-CQD/CuO/GCE is developed and is used for the sensor studies of aspirin.

Electrochemical determination of morin in Kiwi and Strawberry fruit samples using vanadium pentoxide nano-flakes.

Herein, we report the synthesis of Vanadium Pentoxide Nanoflakes (VO NF) using ionic liquid and employed the VO NF in electrochemical determination of Morin (MR) in fruit samples. The VO NF were characterized by Powder X-ray diffraction (PXRD), scanning electron microscope (SEM), energy-dispersive X-ray analyzer (EDX), differential pulse voltammetry (DPV), and cyclic voltammetry (CV). Remarkably, the as-synthesized VO NF exhibited excellent electrochemical behavior and electrochemical ability towards MR.

Enhanced photovoltaic performance of dye-sensitized solar cells based on nickel oxide supported on nitrogen-doped graphene nanocomposite as a photoanode.

We applied the nitrogen-doped graphene@nickel oxide (NGE/NiO) nanocomposite doped TiO as a photo-anode for dye-sensitized solar cells (DSSCs) on fluorine-doped tin oxide (FTO) substrates by screen printing method. Power conversion efficiency (PCE) of 9.75% was achieved for this DSSCs device, which is greater than that of DSSCs devices using GO/TiO, and NiO/TiO based photo-anodes (PCE=8.

Electro-oxidative determination of aromatic amine (o-phenylenediamine) using organic-inorganic hybrid composite.

A highly sensitive o-phenylenediamine (OPD) sensor based on a FeO doped with functionalized multi-walled carbon nanotubes (FeO@f-MWCNTs) composite fabricated glassy carbon electrode (GCE) was developed. The modified FeO@f-MWCNTs/GCE showed an enhanced current (I) response toward OPD relative to that of a FeO/GCE, f-MWCNTs/GCE, and a bare GCE. Under optimum conditions, the FeO@f-MWCNTs/GCE showed a wide linear range remove at OPD concentrations of 0.