Impact of Erbium (Er) and Yttrium (Y) doping on BiVO crystal structure towards the enhancement of photoelectrochemical water splitting and photocatalytic performance.

An efficient BiVOnanocatalyst with Erbium (Er) and Yttrium (Y) doping was synthesized via a facile microwave irradiation route and the obtained materials were further characterized through various techniques such as p-XRD, FT-IR, FE-SEM, HR-TEM, UV-Vis DRS, PL, LSV, and EISanalysis. The obtained results revealed that the rare metals induce the stabilization of the monoclinic-tetragonal crystalline structure with a distinct morphology. The yttrium doped BiVO (Y-BiVO) monoclinic-tetragonal exhibited anefficient photoelectrochemical water splitting and photocatalytic performanceare compared to bare BiVO.

In-situ DRIFT investigation of photocatalytic reduction and oxidation properties of SiO@α-FeO core-shell decorated RGO nanocomposite.

In this work, SiO@α-FeO core-shell decorated RGO nanocomposites were prepared via a simple sol-gel method. The nanocomposites were prepared with different weight percentages (10, 30, and 50 wt %) of the SiO@α-FeO core-shell on RGO, and the effects on the structural and optical properties were identified. The photocatalytic reduction and oxidation properties of the nanocomposites in the gas phase were assessed through the reduction of CO and oxidation of ethanol using in-situ diffuse-reflectance infrared fourier transform spectroscopy (DRIFT).

Investigation of the structural, optical and crystallographic properties of BiWO/Ag plasmonic hybrids and their photocatalytic and electron transfer characteristics.

Effective exploitation of visible-light unique structural and electronic properties has enormously attracted more researchers for photocatalytic systems. Here, we have fabricated an efficient BiWO-Ag plasmonic hybrid via the photoreduction technique and the obtained materials were well characterized with sophisticated instruments. The BW-Ag-1 catalyst showed the maximum photocatalytic activity for the degradation of cationic dyes rhodamine B (RhB) and malachite green (MG) and the rate constant was 2.

A potential photocatalytic, antimicrobial and anticancer activity of chitosan-copper nanocomposite.

In this study, chitosan-copper (CS-Cu) nanocomposite was synthesized without the aid of any external chemical reducing agents. The optical, structural, spectral, thermal and morphological analyses were carried out by several techniques. The prepared nanocomposite acts as a photocatalyst for the removal of Rhodamine B (RhB) and Conge red (CR) dyes under visible light irradiation.

Physicochemical investigations of biogenic chitosan-silver nanocomposite as antimicrobial and anticancer agent.

Chitosan (CS), a seaweed polysaccharide is a natural macromolecule which is widely being used in medical applications because of its distinctive antimicrobial and anticancer properties. Silver, a noble metal, is also receiving wide attention for its potential usage in antimicrobial and anticancer therapeutics. In this study, an effective way of reduction of silver using chitosan at varying reaction temperatures and an optimised concentration of silver were performed.

A versatile effect of chitosan-silver nanocomposite for surface plasmonic photocatalytic and antibacterial activity.

Chitosan-silver (CS-Ag) nanocomposite was green synthesised without the aid of any external chemical-reducing agents. The synthesised nanocomposite was characterised by UV-visible spectroscopy, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), thermo-gravimetric analysis (TGA), differential scanning calorimetry (DSC), field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray spectroscopy (EDX), atomic force microscopy (AFM), high-resolution transmission electron microscopy (HR-TEM) with selected area electron diffraction (SAED), X-ray photoelectron spectroscopy (XPS), and zeta potential analyser. The particle size of the synthesised CS-Ag nanocomposite was around 20 nm and was found to be thermally stable in comparison with pure chitosan.

Tetraammine(carbonato-κ(2) O,O')cobalt(III) perchlorate.

In the title complex, [Co(CO3)(NH3)4]ClO4, both the cation and anion lie on a mirror plane. The Co(III) ion is coordinated by two NH3 ligands and a chelating carbonato ligand in the equatorial sites and by two NH3 groups in the axial sites, forming a distorted octa-hedral geometry. In the crystal, N-H⋯O hydrogen bonds connect the anions and cations, forming a three-dimensional network.