Data on the growth of ZnO nanorods on Nylon 6 and photocatalytic activity

ZnO was successfully synthesized by a conventional synthetic route using zinc nitrate as a source for ZnO formation. X-ray diffraction and thermogravimetric analysis revealed a crystal size of 66 nm of ZnO and a thermal stability of 500 °C. A small amount of ZnO particles was employed as the source for ZnO-rod growth on nylon 6 surfaces. Scanning electron microscope images were taken to evaluate the morphological properties of ZnO, which presented as a hexagonal needle-like shape. Preliminary evaluation of photocatalytic activity was performed through measurement of the degradation of methylene blue solution over 4 h. Keywords: ZnO, Rod-like, Nylon 6, Photocatalytic activit

Effect of Mn-substituted SnO2 particle toward photocatalytic degradation of methylene blue dye

SnO2 and Mn-doped SnO2 were successfully prepared by wet chemical synthetic route. The understanding of substituted Mn into SnO2 leads to transfer the energy band gap by small amount of metal dopant. Fourier transform infrared and X-ray diffraction were used to determine chemical bonding and crystal structure, respectively. It showed that small amount of Mn can be completely substituted into SnO2 lattice. 40% wt of Mn was completely substituted. EDX was used to confirm the existence of Mn-doped SnO2. Scanning electron microscope revealed that their particles exhibits blocky particle with irregular sharp. The efficiency of SnO2 and Mn-doped SnO2 was investigated on the photocatalytic activity on methylene blue degradation for 4 h. The photocatalytic activity of SnO2 and Mn-doped SnO2 exhibited the excellent performance in wastewater treatment in textile industry. Keywords: SnO2, Mn-doped SnO2, Photocatalytic, Methylene blu

Synthesis of three-dimensional hierarchical CuO flower-like architecture and its photocatalytic activity for rhodamine b degradation

The flower-like CuO materials with a good uniformity were successfully synthesized by the self-assembly method. By using pH ranging from 7 to 9, CuO provided different morphologies. X-ray diffraction ̣(XRD) and Scanning electron microscopy (SEM) revealed the purity and uniformity of the CuO particles, respectively. The particles show flower-like structures composed of CuO nano-sheets. Transmission electron microscopy (TEM) confirmed the uniformity of nanosheet-like CuO particles with lattice dimensions of 0.2–0.4 nm. In a preliminary experiment, the rhodamine b degradation was observed by using CuO as a photocatalyst. These semiconducting particles were found to enhance the degradation of the azo dye within 240 min. It was remarkable to note that as-synthesized CuO particles from the self-assembly method provided a good uniformity in morphology. It also exhibited good and suitable properties to serve as a photocatalyst for rhodamine b degradation. Keywords: CuO, Self-assembly, Photocatalyst, Rhodamine

Synthesis and characterization of bacterial cellulose and gelatin-based hydrogel composites for drug-delivery systems

Bacterial cellulose and gelatin were successfully used to develop a hydrogel composite material. Hydrogel was synthesized by copolymerization between bacterial cellulose and gelatin. Scanning electron microscopy (SEM) images showed that the bacterial cellulose chain was uniform in size and shape. Glutaraldehyde was employed as a crosslinking agent. H-bonds were formed via the reaction between the amine and hydroxyl groups, which were the functional groups of the gelatin and bacterial cellulose, respectively. The hydrogel composite presented excellent properties in terms of its thermal stability, chemical resistance, and mechanical properties. Moreover, the swelling ratio of the hydrogel network, in water, was estimated to be 400–600%. Importantly, the hydrogel composite developed during this study is considered a good candidate for drug-delivery systems

Deposition of PEDOT: PSS Nanoparticles as a Conductive Microlayer Anode in OLEDs Device by Desktop Inkjet Printer

A simple microfabrication technique for delivering macromolecules and patterning microelectrode arrays using desktop inkjet printer was described. Aqueous solution of nanoparticle of poly (3,4-ethylenedioxythiophene) (PEDOT) doped with polystyrene sulfonic acid (PSS) was prepared while its particle size, the surface tension, and the viscosity of the solution were adjusted to be suitable for deposition on a flexible cellulose nanocomposite substrate via inkjet printer. The statistical average of PEDOT: PSS particle size of 100 nm was observed. The microthickness, surface morphology, and electrical conductivity of the printed substrate were then characterized by profilometer, atomic force microscope (AFM), and four-point probe electrical measurement, respectively. The inkjet deposition of PEDOT: PSS was successfully carried out, whilst retained its transparency feature. Highly smooth surface (roughness ~23–44 nm) was achieved