A facile method has been developed for fabricating selective and sensitive electrochemical sensors the detection of toxic metal ions, which invokes incorporation palladium nanoparticles (Pd NPs) on porous activated carbons (PACs). The PACs, were derived from waste biomass feedstock (fruit peels), possess desirable textural properties porosities favorable dispersion Pd NPs (ca. 3–4 nm) graphitic PAC substrate. Pd/PAC composite materials so fabricated characterized by a variety different...

Recently, transition metal/metal oxides (TMMOs) decorated on porous carbons (PCs) have been intensively focused designing rational electrode materials for the promising future specific category of electrochemical energy storage and conversion technologies. In particular, TMMO incorporation with PC structures has become very attractive in area supercapacitors (SCs) mainly caused by their large accessible surface areas (SSA), together suitable pore size distributions (PSD), high electrical...

Graphene-like sulfur-containing graphitic carbon nitride (S-GCN) nanosheets were successfully prepared and thoroughly characterized. A simple synthetic method by a thermal condensation approach was reported for the preparation of S-GCN with trithiocyanuric acid (TCA) as precursor. The electrochemical performances 4-nitrophenol (4-NP) sensors assessed cyclic voltammetry (CV), amperometry, differential pulse (DPV). Ultrathin have been employed to enhance electrocatalytic activity, showing...

High surface area carbon porous materials (CPMs) synthesized by the direct template method via self-assembly of polymerized phloroglucinol-formaldehyde resol around a triblock copolymer were used as supports for nickel nanoparticles (Ni NPs). The Ni/CPM fabricated through microwave-assisted heating procedure have been characterized various analytical and spectroscopic techniques, such X-ray diffraction, field emission transmission electron microscopy, vibrating sample magnetometry, gas...

Highly porous beetroot-derived activated carbons incorporated with well-dispered magnetite nanoparticles (Fe3O4 NPs; average size ca. 3.8 ± 0.5 nm) were fabricated via a microwave-assisted synthesis route. The magnetic Fe3O4@BRAC catalysts so-fabricated characterized by variety of diffent physicochemical teniques, viz. XRD, FE-TEM, VSM, gas physisorption/chemisorption, TGA, XPS, Raman, ICP-AES, and FT-IR spectroscopy. as-prepared exploited for heterogeneous-phase reduction series...

A novel method for detecting an environmental pollutant, 4-nitrophenol (4-NP), by exploiting biomass-derived activated carbon (AC) is reported. The electrochemical performances of the 4-NP sensor were assessed cyclic and linear sweep voltammetries. presence oxygen surface functional groups heteroatoms (72.6% C, 6.1% H, 6.5% N, 7.5% S) in AC with high area (1555 m2 g−1) are found to be responsible excellent catalytic activities reversible redox behaviors observed during detection 4-NP....

Remarkable developments have been accomplished in silica-supported palladium nanoparticles (PdNPs)-mediated organic transformations for the generation of Suzuki (C–C), Heck (C═C), and Sonogashira (C≡C) coupling reactions academic as well industrial communities. Various synthetic methods were adopted to prepare highly dispersed PdNPs encapsulated within various forms silica supports. The type reaction examined size shape, stability, recycling ability PdNPs, influence different parameters on...

In the present work, we report a one-step pyrolysis synthesis of molybdenum nitride nanorods (MoN NRs) using ammonium heptamolybdate tetrahydrate as precursor. Properties MoN NRs have been improved by sulfur-doped graphitic carbon (MoN@S-GCN) nanocomposite, which has used to modify glassy electrode (GCE) for electrochemical determination chloramphenicol (CAP). The large surface area S-GCN-anchored in nanocomposite demonstrates synergistic effect transport kinetic barrier electron and...

Schematic representation of direct synthesis a biomass-derived ZAC nanocomposite as practical platform for prospective applications.

In this work, hierarchically superior spinel crystalline manganese cobaltite (MnCo2O4) microflowers were hydrothermally synthesized to anchor on phosphorus-doped graphic carbon nitride nanosheet (MnCo2O4/P-CN) nanocomposites for the robust detection of antibiotic sulfadiazine (SF). The structure and surface characteristics obtained composite measured by spectroscopic method, which collectively suggests physical chemical properties composite. anodic oxidation SF was considered at a glassy...

A nanocomposite containing palladium nanoparticles embedded on bismuth sulfide nanorods (Pd@Bi2S3) was synthesized based a solvothermal method. The structural features, composition, and morphology were characterized by XRD, FT-IR, FE-SEM-EDS, FE-TEM, HAADF-STEM, XPS, N2 physisorption, UV-vis. Further electrochemical measurements EIS, CV, DPV, LSV techniques done. It revealed that Pd@Bi2S3/GCE exploited as sensors for the detection of toxic mercuric ions (Hg2+), which provides wide linear...

An increasing amount of interest has been shown in the advancement functionalized carbon nanomaterial-based electrode materials, which would make these electrodes more suitable for use various electrochemical contexts, such as (bio)sensors and energy storage devices. In particular, carbon-decorated nanomaterials have garnered considerable attention development potential next-generation composites. These composites exhibit exceptional material properties, encompassing optical, electrical,...

In this paper, we report the synthesis of amine modified SiNPs (silica nanoparticles) by a sol–gel method and role synthesized SiO2 as solid support for nanocatalyst CuNPs (copper nanoparticles). The is characterized XRD, HRTEM, BET, AFM, SEM, EDX, UV-vis, FT-IR TGA techniques. Cu/SiO2 (catalyst A) serves an efficient heterogeneous exhibiting high catalytic activity series 1,4-disubstituted-1,2,3-triazoles thioethers. catalyst A can be recycled reused several times without any significant...

Palladium nanoparticles (Pd NPs) immobilized on a garlic skin-derived activated carbons (GACs) is reported. The morphology, structure, surface compositions, and textural properties of the GACs Pd@GAC catalyst were investigated by variety physicochemical characterization techniques, which revealed dispersion Pd NPs with average particle size ca. 21 nm sheet-like graphitized areas pore volumes as high 1836 m2 g–1 0.89 cm3 g–1, respectively. As result, loading 1–2 wt% exhibited superior...

Abstract A facile hydrothermal route for the synthesis of ordered NiWO 4 nanocrystals, which show promising applications as high performance non-enzymatic glucose sensor is reported. The -modified electrodes showed excellent sensitivity (269.6 μA mM −1 cm −2 ) and low detection limit (0.18 μM) with desirable selectivity, stability tolerance to interference, rendering their prospective cost-effective, enzyme-free sensors.

Superior performances of mesoporous carbon supported Pd nanoparticles during catalytic reduction 4-nitrophenol (4-NP), C–C coupling, and sensitive detection 4-NP.

This study discusses the prospect of using biomass waste material, such as Cassia fistula (golden shower) fruit, a carbon precursor in development new material for sustainable electrochemical sensor application. We successfully synthesized platinum–rhenium nanoparticles decorated on porous activated (Pt–Re NP/PAC) nanocomposite through incorporation metal precursors platinum(II) acetylacetonate (Pt(acac)2) and dirhenium decacarbonyl (Re2(CO)10) via facile thermal reduction process. A variety...