Retraction notice to "NiMoO4 nanorods photocatalytic activity comparison under UV and visible light" [Environ. Res. 197 (2021) 111073].

This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/locate/withdrawalpolicy).

Investigation of g-CN/Ce(WO) Nanocomposites for the Removal of Basic Dyes.

Herein, we have synthesized pristine and g-CN-assisted Ce(WO) via a facile hydrothermal method. The structure was confirmed with the standard JCPDS card. g-CN encapsulated the crystal and reduced the size.

Facile Synthesis of Ni-MgO/CNT Nanocomposite for Hydrogen Evolution Reaction.

In this study, the pristine MgO, MgO/CNT and Ni-MgO/CNT nanocomposites were processed using the impregnation and chemical vapor deposition methods and analyzed for hydrogen evolution reaction (HER) using the electrochemical water splitting process. Furthermore, the effect of nickel on the deposited carbon was systematically elaborated in this study. The highly conductive carbon nanotubes (CNTs) deposited on the metal surface of the Ni-MgO nanocomposite heterostructure provides a robust stability and superior electrocatalytic activity.

γ-Ray-Induced Photocatalytic Activity of Bi-Doped PbS toward Organic Dye Removal under Sunlight.

Photocatalysts based on semiconducting chalcogenides due to their adaptable physio-chemical characteristics are attracting attention. In this work, Bi-doped PbS (henceforth PbS:Bi) was prepared using a straightforward chemical precipitation approach, and the influence of γ-irradiation on PbS's photocatalytic ability was investigated. Synthesized samples were confirmed structurally and chemically.

Direct Growth of Binder-Free CNTs on a Nickel Foam Substrate for Highly Efficient Symmetric Supercapacitors.

In the modern civilized world, energy scarcity and associated environmental pollution are the center of focus in the search for reliable energy storage and harvesting devices. The need to develop cheaper and more competent binder-free electrodes for high-performance supercapacitors has attracted considerable research attention. In this study, two different procedures are followed to enhance the growth of carbon nanotubes (CNT-E and CNT-NF) directly coated on a Ni-foam substrate by a well-functioning chemical vapor deposition (CVD) method.

Neodymium-Doped Novel Barium Tungstate Nanospindles for the Enhanced Oxygen Evolution Reaction.

In this work, pristine, 0.02, 0.04, and 0.

Biological evaluation of polycyclic chalcone based acrylamides in human MCF-7 and HeLa cancer cell lines.

Breast and cervical cancer account for the majority of cancer-narrated fatalities among women worldwide, necessitating the development of novel, effective therapeutic ways to combat the disease. In this study, we synthesized 6-methoxy naphthalene and anthracene-based acrylamide chalcone (NBA and ABA) and evaluated its activity for cell multiplication inhibition against two cancer cell lines from humans such as MCF-7 (Human Breast) and HeLa (Cervical) by MTT assay. Physiochemical characterization, such as FT-IR and NMR analyses, validated the synthesized NBA and ABA.

Investigation of EG-BiS nanorods photocatalytic activity under visible light for dye degradation from aquatic system.

BiS, 5 ml EG-BiS, and 10 ml EG-BiS were synthesized by employing solvothermal route. X-ray diffraction, UV-vis absorption, photoluminescence, Raman, scanning electron microscopic studies confirmed the structural, optical, morphological behaviors. The XRD pattern of BiS, 5 ml EG-BiS, and 10 ml EG-BiS was correlated well with JCPDS # 65-2435.

Quaternary CuFeSnS/PVP/rGO Composite for Supercapacitor Applications.

Electrochemical energy storage is a current research area to address energy challenges of the modern world. The CuFeSnS/PVP/rGO-decorated nanocomposite using PVP as the surface ligand was explored in a simple one-step solvothermal route, for studying their electrochemical behavior by designing asymmetric hybrid supercapacitor devices. The full cell three-electrode arrangements delivered 748 C/g (62.

Facile synthesis and defect optimization of 2D-layered MoS on TiO heterostructure for industrial effluent, wastewater treatments.

Current research is paying much attention to heterojunction nanostructures. Owing to its versatile characteristics such as stimulating morphology, affluent surface-oxygen-vacancies and chemical compositions for enhanced generation of reactive oxygen species. Herein, we report the hydrothermally synthesized TiO@MoS heterojunction nanostructure for the effective production of photoinduced charge carriers to enhance the photocatalytic capability.

Fabrication of GdO Nanosheet-Modified Glassy Carbon Electrode for Nonenzymatic Highly Selective Electrochemical Detection of Vitamin B2.

A novel GdO nanosheet was synthesized by the template-free chemical coprecipitation method. Interestingly, upon calcination at 600 °C, nanoparticles were transformed into a nanosheet, as observed from field emission scanning electron microscopy (FESEM) images. An increase in the calcination temperature to 600 °C increases the particle size to 50 nm, which results in aggregation.

CoNiSe Nanostructures for Clean Energy Production.

Comparative investigation of the electrochemical oxygen evolution reaction (OER) activity for clean energy production was performed by fabricating three different electrodes, namely, NiSe, CoSe, and CoNiSe, synthesized by hydrothermal treatment. Cubic, orthorhombic, and hexagonal structures of NiSe, CoSe, and CoNiSe were confirmed by X-ray diffraction (XRD) and also by other characterization studies. Perfect nanospheres, combination of distorted nanospheres and tiny nanoparticles, and sharp-edge nanostructures of NiSe, CoSe, and CoNiSe were explored by surface morphological images.

Electrochemical Performance of β-Nis@Ni(OH) Nanocomposite for Water Splitting Applications.

Investigation on the formation mechanism of the β-NiS@Ni(OH) nanocomposite electrode for electrochemical water splitting application was attempted with the use of the hydrothermal processing technique. Formation of single-phase β-NiS, Ni(OH) and composite-phase β-NiS@Ni(OH) has been thoroughly analyzed by X-ray diffractometer (XRD) spectra. Three different kinds of morphologies such as rock-like agglomerated nanoparticles, uniformly stacked nanogills, and uniform nanoplates for β-NiS, Ni(OH), and β-NiS@Ni(OH) materials, respectively, were confirmed by SEM images.

BiWO and FeWO Nanocatalysts for the Electrochemical Water Oxidation Process.

Polyvinylpyrrolidone (PVP)-assisted nanocatalyst preparation was succeeded by employing a controlled solvothermal route to produce efficient electrodes for electrochemical water-splitting applications. BiWO and FeWO nanocatalysts have been confirmed through the strong signature of (113) and (111) crystal planes, respectively. The binding natures of Bi-W-O and Fe-W-O have been thoroughly discussed by employing X-ray photoelectron spectroscopy which confirmed the formation of BiWO and FeWO.

Impact of l-Arginine and l-Histidine on the structural, optical and antibacterial properties of Mg doped ZnO nanoparticles tested against extended-spectrum beta-lactamases (ESBLs) producing Escherichia coli.

Magnesium doped Zinc oxide nanoparticles (Mg:ZnO NPs) were synthesized by co-precipitation method. The synthesized Mg:ZnO NPs exhibited hexagonal wurtzite structure, which was confirmed by X-ray diffraction results. After structural confirmation of Mg doped ZnO NPs, base amino acids like l-Arginine and l-Histidine were separately incorporated with the Mg: ZnO NPs.

Ni-CeO spherical nanostructures for magnetic and electrochemical supercapacitor applications.

The synthesis of nanoparticles has great control over the structural and functional characteristics of materials. In this study, CeO and Ni-CeO spherical nanoparticles were prepared using a microwave-assisted method. The prepared nanoparticles were characterized via thermogravimetry, X-ray diffraction (XRD), Raman, FTIR, scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), vibrating sample magnetometry (VSM) and cyclic voltammetry (CV).

Impact of alkaline metal ions Mg, Ca, Sr and Ba on the structural, optical, thermal and antibacterial properties of ZnO nanoparticles prepared by the co-precipitation method.

Pure ZnO and alkaline metal ion (Mg, Ca, Sr and Ba)-doped ZnO nanoparticles (NPs) were synthesized by the co-precipitation method. The synthesized nanoparticles retained the wurtzite hexagonal structure, which was confirmed by X-ray diffraction studies. The micro-strain properties were analyzed through Williamson-Hall analysis.

Synthesis, structural, spectroscopic and optical studies of charge transfer complex salts.

New charge transfer molecular complex adducts of picric acid (C6H3N3O7) with triethylamine (C6H15N) and dimethylformamide (HCON(CH3)2) were synthesized successfully for the first time. Chemical composition and stoichiometry of the synthesized complex salts were verified by CHN elemental analysis. Solubility of the complex salts have been determined by gravimetric method and single crystals of two new salts were grown by low temperature solution growth technique.

Comparison of two-color hologram lifetimes of near-stoichiometric lithium niobate and of tantalate crystals.

Lifetimes of two-color nonvolatile holograms recorded in undoped or in slightly doped near-stoichiometric lithium niobate and tantalate crystals were measured and compared by extrapolation of the high-temperature data. A proton-compensation mechanism dominated the dark decay and yielded similar activation energies, of 1.05 and 1.