Cubic spinel Co3O4 nanoparticles with spherical (0D) and hexagonal platelet (2D) morphologies were synthesized using a simple solvothermal method by tuning the reaction time. XRD HRTEM analyses revealed pure phase growth of particles along [111] [110] directions. UV–vis studies showed two clear optical absorption peaks corresponding to band gaps in range 400–500 nm 700–800 nm, respectively, related ligand metal charge transfer events (O2- → Co2+,3+). Under electrochemical study electrode...

Use of hydrophilic Cu₂ZnSnS₄ nanoparticles as a multifunctional highly active heterogeneous catalyst: electrocatalytic water splitting, photocatalytic dye degradation and reduction aqueous Cr(<sc>vi</sc>).

A simple solvothermal strategy has been developed to synthesize highly stable, pure phased CoO and Co3O4 nanoparticles from Co(CH3COO)2·4H2O precursor in ethanol solvent at 220 °C. The various phases of cobalt oxide (cubic Co3O4) with controlled size morphologies viz, nanocubes, hexagonal platelets nanospheres could be obtained via varying only one parameter (either surfactant or reaction time) this single synthesis method. XRD HRTEM analyses revealed cubic phase nanoparticles. formation...

This paper reports preparation of CeO2 nanocrystals by using oleic acid as a surfactant. A strong coordinating property toward (100) planes the facilitated three-dimensional (3D) assembly via oriented attachment nanocrystal building blocks to form surface exposed porous cubic ceria sharing {111} facets. As-synthesized materials were characterized HRTEM, SEM, XRD, FTIR, Raman spectroscopy, and BET area analyzer. 3D morphology was established STEM-HAADF technique dark-field TEM. nanocubes...

Efficient oxidation of aromatic alcohols and toluene to the corresponding aldehydes was achieved selectively by an active-surface-exposed CeO₂nanocube heterogeneous catalyst.

CeO2 nanoparticles exposed in (100) and (111) surfaces have been synthesized explored as a heterogeneous catalyst for the first time oxidation of para-xylene to terephthalic acid. The synthesis catalysis reaction was environmental friendly, where water used solvent. Ceria were with controlled size 15 nm high surface area 268 m2 g−1 magnitude. These particles exploited novel aqueous phase bypass all hazardous steps involve manufacture industrially important result shows formation 30–40% acid...

Abstract This report discussed the efficient hydrogen generation via water splitting and fast dye degradation pathway using Ce doped SnO 2 nanoparticles. One pot synthesis of nanoparticles was carried out by a simple, convenient wet chemical method H O product obtained characterized array physico‐chemical techniques. Powder X‐ray diffraction confirmed presence rutile phase. Band gap for Ce:SnO found to be 3.80 eV which is more than pure (3.71 eV) it due Moss‐Burstein effect. EDAX analysis...

In the present work, sample of composition Ba 5 SmTi 3 Nb 7 O 30 was prepared by solid-state reaction method. X-ray diffraction (XRD) analysis reveals formation single-phase compound with an orthorhombic structure. The grain morphology has been investigated scanning electron microscopy. Dielectric properties have studied as a function temperature and frequency. variation dielectric constant (ϵ′r) at different frequencies shows that anomaly ferroelectric to paraelectric type 170°C, exhibits...

A series of copper sulfide (CS) nanoparticles (NPs) were synthesized just by varying the amount sulfur precursor and have been explored for first time as a three-way heterogeneous catalyst in photocatalytic oxidation number aromatic alcohols, degradation reduction water pollutants, facile synthesis pharmaceutically important moiety 4-aryl-NH-1,2,3-triazoles. The green novel protocol was successfully developed covellite (CuS, Cu

In this study, a sustainable and eco-friendly copper-free protocol has been developed for the regioselective synthesis of 1,4-disubstituted N -unsubstituted 1,2,3-triazoles using zinc-based heterogeneous catalyst.

A bifunctional ionic liquid (IL) [DDQM][HSO4] has been designed and explored as a three-way catalyst for the synthesis of 2-phenylquinazolin-4(3H)-ones from anthranilamide benzyl alcohol in 3.5 min incorporating microwave irradiation. Photochemically reaction proceeds 4 h at room temperature thermally 8 120 °C. Further IL-assisted metal, solvent, base free situ oxidation alcohols to aldehydes shows its task specificity. The multifunctionality IL was reestablished with two Wnt pathway antagonists.

Regioselective synthesis of 1,2,3-triazoles has emerged as a cornerstone modern synthetic chemistry, offering immense potential in pharmaceuticals, materials science, and functional applications. This account focuses on advancing click reaction, with majority the innovations stemming from our group’s contributions. Highlights include development novel catalytic systems, both homogeneous heterogeneous exploration copper-free photocatalytic methodologies. bridges traditional approaches,...

Two classes of semiconductor copper sulfide (CS) nanostructures with a sheet-like architecture were designed via hydrothermal route merely by varying the sulfur source concentration. The newly developed CS nanoparticles showed breakthrough in catalytic performances and served as very efficient, versatile, recyclable multifunctional catalyst. hexagonal plate-shaped pure covellite (CuS) phase synthesized for this purpose excellent results, enabling complete removal water pollutants [MB...

Exploration of Ag–Zn-based heterostructured nanoparticles as one the most efficient and promising copper-free catalysts for scalable one-pot synthesis 1,4-disubstituted 1,2,3-triazoles at room temperature.

We report for the first time hydrothermally developed copper sulfide–graphitic carbon nitride (Cu1.8S-GCN) nanocomposites as highly efficient photocatalysts azide–alkyne cycloaddition (AAC) reaction. Combining GCN with 0.8 wt % (ultralow loading) nanoparticulate Cu1.8S leads to a change in band structure, resulting enhancement of visible-light absorption and thereby mitigating problems that normally arise from conventional copper-based photocatalytic strategies. The strategy provides...