Unraveling the Role of 2D TiCT MXene Nanosheets in Cu-Based Double Perovskite Active Layer for Enhanced Photovoltaic Performance.

Although the atmospheric stability of lead-free inorganic double perovskite (DP) solar cells (PSCs) looks promising, their further development is hampered by inadequate film quality and non-radiative carrier recombination at the interfaces. Herein, the incorporation of a newly developed intriguing class of 2D material TiCT MXene nanosheets with the photo-absorbing CuAgBiI (CABI) active layer of a fully inorganic solar cell is reported. The highly conductive TiCT nanosheets work as a multi-functional additive by tuning the band gap, reducing the non-radiative carrier recombination, and inhibiting carrier accumulation.

Influence of Indium as a Promoter on the Stability and Selectivity of the Nanocrystalline Cu/CeO Catalyst for CO Hydrogenation to Methanol.

Stable catalyst development for CO hydrogenation to methanol is a challenge in catalysis. In this study, indium (In)-promoted Cu nanoparticles supported on nanocrystalline CeO catalysts were prepared and explored for methanol production from CO. In-promoted Cu catalysts with ∼1 wt % In loading showed a methanol production rate of 0.

Induced Vacancy-Assisted Filamentary Resistive Switching Device Based on RbPbICl Perovskite for RRAM Application.

Halide perovskite (HP) materials are actively researched for resistive switching (RS) memory devices due to their current-voltage hysteresis along with low-temperature processability, superior charge mobility, and simple fabrication. In this study, all-inorganic RbPbI perovskite has been doped with Cl in the halide site and incorporated as a switching media in the Ag/RbPbICl/ITO structure, since pure RbPbI is nonswitchable. Five compositions of the RbPbICl ( = 0, 0.

Morphologically controlled cobalt oxide nanoparticles for efficient oxygen evolution reaction.

Electrochemical water oxidation is one of the thrust areas of research today in solving energy and environmental issues. The morphological control in the synthesis of nanomaterials plays a crucial role in designing efficient electrocatalyst. In general, various synthetic parameters can direct the morphology of nanomaterials and often this is the main driving force for the electrocatalyst in tuning the rate of the oxygen evolution reaction (OER) for the electrochemical water-splitting.

Highly efficient conversion of the nitroarenes to amines at the interface of a ternary hybrid containing silver nanoparticles doped reduced graphene oxide/ graphitic carbon nitride under visible light.

In this report, a ternary Ag-rGO/g-CN hybrid was synthesized by a simple hydrothermal approach for the photocatalytic reduction of nitroarene compounds into their corresponding amines under visible light. Importantly, the present method did not require reducing agents, like hydrazine hydrate; instead methanol has been used as a source of electrons and protons for the photoreduction process. After grafting of Ag NPs, a significant enhancement in the efficiency of the rGO/g-CN for the reduction of nitrobenzenes was observed.

Facile Synthesis of Spinel CoFe₂O₄ Nanoparticle and Its Application as Magnetic Recoverable Photocatalyst for Degradation of Metronidazole and Some Selected Organic Dyes.

A novel and facile approach for one-pot synthesis of spinel cobalt ferrites (CoFe₂O₄) nanoparticle (NPs) and is photocatalytic activity for degradation of pharmaceuticals waste and organic dye. The synthesis involves homogeneous chemical precipitation followed by hydrothermal heating, using of hexamine as a hydroxylating agent. As-synthesized CoFe₂O₄ photocatalyst was characterised by XRD, SEM, SEM Mapping, TEM, XPS, and BET-surface area analysis.

Facile Solvothermal Synthesis of CuCo₂S₄ Yolk-Shells and Their Visible-Light-Driven Photocatalytic Properties.

In this present work, we synthesized a yolk-shell shaped CuCo₂S₄ by a simple anion exchange method. The morphological and structural properties of the as-synthesized sample were characterized using X-ray diffraction (XRD), UV-vis diffuse reflectance spectra (UV-vis DRS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The SEM and TEM results confirmed that the uniform yolk-shell structure was formed during the solvothermal process.

Waste snail shell derived heterogeneous catalyst for biodiesel production by the transesterification of soybean oil.

A waste snail shell () derived catalyst was used to produce biodiesel from soybean oil at room temperature for the first time. The snail shell was calcined at different temperatures of 400-1000 °C. The synthesized catalysts underwent XRD, SEM, TEM, EDS, FTIR, XRF, TG/DTA and N adsorption-desorption isotherm (BET) analysis.

Paederia foetida Linn. promoted biogenic gold and silver nanoparticles: Synthesis, characterization, photocatalytic and in vitro efficacy against clinically isolated pathogens.

Development of newer improved therapeutic agents with efficient antimicrobial activities continues to draw attention of researchers till date. Moreover, abatement of polluting dyes released from industry with enhanced efficiency is currently being considered as challenging task for people working on material sciences. In the present study, we report a facile biogenic synthesis of gold and silver nanoparticles (NPs) in which aqueous extracts of Paederia foetida Linn.

Fine cutting edge shaped BiOrods/reduced graphene oxide (RGO) composite for supercapacitor and visible-light photocatalytic applications.

BiO rods/RGO composite has been synthesized by a simple precipitation and calcination method. The crystallnity, structural, and morphological features were studied by X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), and high resolution transmission electron microscopy (HR-TEM) techniques. The supercapacitor behavior was studied using cyclic voltammetry, galvanostatic charge discharge and impedance analysis, respectively.

Facile synthesis of novel CaFe2O4/g-C3N4 nanocomposites for degradation of methylene blue under visible-light irradiation.

Hybrid organic/inorganic nanocomposites comprised of calcium ferrite (CaFe2O4) and graphitic carbon nitride (g-C3N4) were prepared via a simple two-step process. The hybridized CaFe2O4/g-C3N4 heterostructure was characterized by a variety of techniques, including X-ray diffraction (XRD), Fourier transform-infrared spectroscopy (FT-IR), UV-vis diffuse reflectance spectroscopy (UV-vis DRS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive analysis of X-rays (EDS), X-ray photoelectron spectroscopy (XPS), photoluminescence spectroscopy, electrochemical impedance spectroscopy (EIS), and photoelectrochemical studies. Photocatalytic activity of the prepared samples was evaluated against degradation of methylene blue (MB) under visible-light irradiation.

Photocatalytic and antibacterial activities of gold and silver nanoparticles synthesized using biomass of Parkia roxburghii leaf.

The present study reports a green approach for synthesis of gold (Au) and silver (Ag) nanoparticles (NPs) using dried biomass of Parkia roxburghii leaf. The biomass of the leaf acts as both reductant as well as stabilizer. The as-synthesized nanoparticles were characterized by time-dependent UV-visible, Fourier transform infrared (FT-IR), powder X-ray diffraction (XRD), and transmission electron microscopy (TEM) analyses.