A Highly Sensitive Luminescent Upconversion Nanosensor for Turn-On Detection of As.

A luminescent nanoprobe (N), MnO-modified Er/Yb-codoped AgMoO upconversion nanoparticles (UCNPs; cod-AMO-3/MnO), was constructed for rapid, sensitive, and selective "turn-on" detection of trace As. Herein, two kinds of luminescent Ns were developed based on luminescence resonance energy transfer (LRET) between cod-AMO-3 as the energy donor and MnO as the energy acceptor. By using MnO as the matrix in cod-AMO-3/MnO fluorometric assay, the upconversion luminescence (UCL) intensity () of the cod-AMO-3 probe was quenched significantly through LRET, illustrating MnO as an efficient quencher for UCL.

Tetraphenylporphyrin Decorated BiMoO Nanocomposite: Its Twin Affinity of Oxygen Reduction Reaction and Electrochemical Detection of 4-Nitrophenol.

A selective electrode for oxygen reduction reaction (ORR) and electrocatalytic reduction of 4-nitrophenol (-NP) was fabricated on a glassy carbon electrode using organic-inorganic BiMoO/HTPP nanocomposites with different weight percentages of tetraphenylporphyrin, synthesized by the solvothermal process. Materials thus synthesized were characterized through UV-Vis diffuse reflectance spectroscopy, X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), high-resolution transmission electron microscopy (HR-TEM), Fourier transform infrared spectroscopy (FT-IR), and X-ray diffraction (XRD) analysis. The electrocatalytic performance of the modified electrode toward ORR in the 0.

One pot solvent assisted syntheses of AgSbS nanocrystals and exploring their phase dependent electrochemical behavior toward oxygen reduction reaction and visible light induced methanol oxidation reaction.

A huge variety of silver based ternary sulfide semiconductors (SCs) have been considered for the sustainable advancement of renewable energy sources. Herein, we have synthesized two important classes of newly emerging semiconductor nanocrystals (NCs) Ag3SbS3 (SAS), i.e.

One Step Synthesis of a Gold/Ordered Mesoporous Carbon Composite Using a Hard Template Method for Electrocatalytic Oxidation of Methanol and Colorimetric Determination of Glutathione.

Ordered mesoporous carbon-supported gold nanoparticles (Au/OMC) have been fabricated in one step through a hard template method using gold nanoparticle-intercalated mesoporous silica (GMS) to explore two different catalytic properties, for example, electrocatalytic oxidation of methanol and colorimetric determination of glutathione (GSH). The catalytically inert but conducting nature of mesoporous carbon (OMC) and promising catalytic activity of gold nanoparticles (AuNPs) has inspired us to synthesize Au/OMC. The as-prepared Au/OMC catalyst was characterized by powder X-ray diffraction, N adsorption-desorption, scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray analysis-elemental mapping, and X-ray photoelectron spectroscopy.

Advanced catalytic performance of amorphous MoS for degradation/reduction of organic pollutants in both individual and simultaneous fashion.

A cluster [(S)Mo(S)Mo(S)], has been used to synthesise molybdenum sulfide microparticles (MPs) by solvothermal treatments under inert environment. During synthesis, surfactants i.e.

Single source precursor driven phase selective synthesis of Au-CuGaS heteronanostructures: an observation of plasmon enhanced photocurrent efficiency.

The design of new functional metal-semiconductor heteronanostructures with improved photovoltaic efficiencies has drawn significant attention because of their unprecedented properties and potential applications. Herein, we report a phase selective synthesis of ternary CuGaS (wurtzite and tetragonal) by simple solution based thermal decomposition of a new binuclear single molecular precursor [Ga(acda)Cu(PPh)]NO (acda = 2-aminocyclopentene-1-dithiocarboxylic acid, PPh = triphenylphosphine) where the phase selectivity has been achieved easily by changing the combination of surface active agents. Furthermore, we have extended our approach to develop a well-controlled synthetic strategy for the preparation of a Au-CuGaS heteronanocomposite with both the phases.