Herein, a simple wet-chemical pathway has been demonstrated for the synthesis of silver nanoparticle conjugated reduced graphene oxide nanosheets where dimethylformamide (DMF) is judiciously employed as an efficient reducing agent. Altogether, DMF reduces both nitrate (AgNO3) and (GO) in reaction mixture. Additionally, presence polyvinylpyrolidone (PVP) assists nanophasic growth homogeneous distribution plasmonic Ag(0). Reduction aggregated Ag NPs on (rGO) are confirmed from various...

Blue solution of copper(II) acetylacetonate complex, [Cu(acac)(2)] in dichloromethane (DCM) and an aqueous alkaline thioacetamide (TAA) constitute a biphasic system. The system screw cap test tube under modified hydrothermal (MHT) reaction condition produces greenish black solid at the liquid-liquid interface. It has been characterized that mass is assembly hexagonal copper sulfide (CuS) nanoplates representing hierarchical structure. as-synthesized CuS are well by several physical...

The review summarizes the most recent advances, challenges and future perspectives in biomass/waste-derived nanoporous carbon materials for energy environmental remediation applications.

This paper reports the nucleation and growth of 2D δ-MnO2 nanosheets from a simple wet chemical reaction at low temperature. The between aqueous KMnO4 pure ethyl acetate constitutes new biphasic platform for product evolution. Then synthesized undergo shape transformation to 1D α-MnO2 nanowires in same pot via dissolution–recrystallization mechanism. detailed mechanism nanosheet formation morphology are described this paper. Moreover, temperature technique can be used produce ultralong...

A nonpolar surfactant assisted mild wet chemistry approach has been presented for controlled fabrication of ferromagnetic ultralong (several micrometers in length) prickly nickel nanowires gram scale with the assistance hydrazine hydrate as reducing agent and chloride metal ion precursor. Nanowire structures analogous to natural plant Euphorbia milii resulted due magnetic dipole driven self-assembly, their alignment was oriented desirably an external field. Systematic microscopic...

Phase pure spherical Sn-SnO2 nanoparticles (∼ 50 nm) in gram level have been synthesized from well-defined SnO microplates 2.0 μm) using focused solar irradiation. The first step of the reaction involves simple stirring a strong NaOH solution with fine SnCl2·2H2O powder. Precipitated blue black are finally transformed into high band gap sunlight. During solid-state photodecomposition microplates, SnO2 along tiny Sn(0) particles evolved simultaneously. Tiny particles, improved surface area,...

Novel hierarchical flower-like nanostructures of Ag-doped MnO2 have been obtained by facile wet chemical and photochemical routes. UV−visible absorption spectroscopy measurement reveals that doping Ag nanoparticles in leads to a red shift the edge reduces optical band gap energy from 2.68 2.51 eV while compared with undoped MnO2. Raman study broadens shifts toward higher wavenumbers as MnO6 octahedron is contorted thus loss translational symmetry activates otherwise Raman-forbidden oxygen...

Tuning of the tin oxide (SnO/SnO2) heterojunction (TOHJ) has been made possible by heating as-prepared p-type SnO semiconductor in air a controlled fashion. Thus better photocatalytic activity for dye degradation under UV, visible as well solar light irradiation was achieved. Multiple reflection and TOHJ plates facilitate photocatalysis reactions.

Highly branched Au flowers (AuFs) with sharp tips have been synthesized in high yield by controlling the kinetics of nanocrystal growth via galvanic replacement reaction. Controlled takes place on appropriately chosen commercially available polystyrene bead supported Cu nanoparticles HAuCl4. Such a reaction is thermodynamically driven through exploitation Cu(II)/Cu(0) redox couple during formation. The hierarchical morphology resulting naked depends exchange rate, which increases increasing...

To achieve advanced functionalities in nanostructured MoSe2 for enhanced electrochemical charge storage and improved photosensing, here we propose an effective strategy, i.e., the substitutional doping of heteroatom Mn. We a 313% increase specific capacitance 6.2% Mn compared to pristine at scan rate 5 mV/s three-electrode configuration. For two-electrode arrangement, also superior charge-storage performance is noted. The electrode can be attributed electrical conductivity arising due...

A surfactantless, trouble-free, and gentle wet chemistry approach has been used to interpret the precisely controlled growth of β-Ni(OH)2 with assistance ammonia nickel acetate from seedless mild hydrothermal conditions. thorough investigation reaction kinetics product morphology varied concentration NH3 different times suggests that a putative mechanism dissolution, recrystallization, oriented attachment supports intelligent self-assembly nanobuilding blocks. Associated characterizations...

Abstract We report here the preparation of a crystalline, pure hexagonal phase ZnO as hollow 500–800 nm spheroids in presence organic bases, such pyridine, using zinc acetate precursor salt. The exhibit unique 3D hierarchical architectures, like cocoons, and demonstrate improved superhydrophobic (water contact angle, 150°) character due to inherited air‐trapped capillarity within cocoon structure. simple synthetic strategy used this process is modified hydrothermolysis (MHT), which...

Truncated Cu2O cubes with well-defined morphology have been successfully synthesized using a stable Cu(II)–EDTA precursor and glucose as the reducing agent in alkaline conditions under 5 min of microwave irradiation. The truncated cubic particles solid powder were characterized by different physical methods. Curiously enough, upon addition particles, blue-colored methylene blue (MB) aqueous acidic (pH ≈ 1.0) solution successively bleaches to colorless leuco-MB (LMB). redox reaction generates...

This paper details an approach for the synthesis of stable electroactive Au–V2O5–MnO2 nanoflower composites using a simple redox-mediated methodology under modified hydrothermal (MHT) conditions. The nanocomposite was characterized by various techniques like X-ray diffraction, scanning electron microscopy, high-resolution transmisson and photoelectron spectroscopy. MnO2 Au formed profitable hierarchical network morphology in interstitial sites V2O5, this kind synergetic architecture exhibits...

Adsorption of dopamine (DA) on a Aucore−Agshell bimetallic nanocolloidal surface has been investigated using surface-enhanced Raman spectroscopy (SERS). The normal spectra (NRS) DA molecules in bulk and aqueous solution have depth. vibrational signatures, as observed from the FTIR molecule, assigned potential energy distributions. pH-dependent NRS molecule recorded to elucidate protonation effect preferential existence different forms molecule. SERS adsorbed are also reported. enhancement...

Copper oxide thin film has been fabricated on a smooth glass substrate from mild and low temperature (∼80 °C) wet-chemical method exploiting Cu(II)-acetate as precursor pyridine hydrolyzing agent. The surface of CuO is known for its hydrophilic nature. A transition the character to hydrophobic happens when as-synthesized exposed surrounding at room temperature, but it takes several weeks. Surprisingly, readily transformed modified with various long chain amine or thiols. acquires...

Abstract In the present study, surface‐enhanced Raman spectra of a bifunctional reporter, 2‐mercaptobenzimidazole, has been found to be responsive exclusively towards Cu 2+ ions while reporter remains anchored on Au nanoparticle surface. Thus specific ‐ion‐detection protocol emerges. The simplicity, sensitivity, and reproducibility method allow routine quantitative detection ions. An interference study involving wide number other metal shows procedure uniquely selective analytically...

Development of a stable and highly active metal oxide based electrochemical supercapacitor is major challenge. Herein, we report Au–Fe2O3 nanocomposite having tiny amount gold (3 atomic % Au) by employing simple redox-mediated synthetic methodology using modified hydrothermal system. Structural morphological studies the synthesized have been performed both experimentally (XRD, IR, Raman, XPS, TEM, FESEM analyses) theoretically (WIEN2K). A probable dissolution–nucleation–recrystallization...

Resin immobilized stable, spherical CuO nanoparticles prepared in the presence of cyclodextrin (CD) act as catalysts for liquid phase alcohol oxidation air. The catalytic activity nanocomposites and its green chemistry approach make it superior to related resin-bound Cu(0) nanocomposite. effect chain length electron-donating or -withdrawing groups influence product yield. exhibit good reusability, simple workup procedure, a straightforward aldehyde formation.