Visible region

WO3/Ag3VO4 photocatalyst was synthesized for benefiting the visible region of solar spectrum for degradation of antibiotic pollutant. The prepared catalyst was characterized by using scanning electron microscope (SEM), X-ray diffraction (XRD), infrared spectroscopy (IR) and energy-dispersive X-ray spectroscopy (EDX).

6p vikwong 29-09-2024 3 1   Download

Titanium dioxide (TiO2) coated on multi-walled carbon nanotubes (CNTs) was synthesized with CNTs and TiO2 using the grinded method. The XRS spectra include that of the obtained single-phase anatase sample. The UV-Vis diffuse reflectance spectra show that the composite material can absorb at a higher wavelength and the absorption covers the whole visible region.

6p tamynhan9 02-12-2020 11 2   Download

Characterization results show that N-doped TiO2 samples have a broader absorption spectrum and a higher antibacterial efficiency against E. coli than pure samples. The DFT calculation suggests that nitrogen ion doping induces the formation of new states closed to the valence band leading to a narrowing of the band gap and a great improvement in photocatalytic activity in the visible light region of the doped material.

8p tamynhan8 04-11-2020 8 1   Download

Antimicrobial resistance is an emerging challenge for health personnel and researchers. In such scenario, alternative strategies targeting novel ways to kill or inhibit growth of microbes are need of the hour. Antimicrobial peptide can be a promising candidate to deal with this crisis. Extracellular matrix protein vitronectin (Vn) is recently being established as a bactericidal agent against certain microbes. Caprine Vn has got few structural alterations as compare to human Vn.

7p nguaconbaynhay5 16-05-2020 16 2   Download

Introduction to LEDs: How LEDs work + some points. Comparison with other sources of light. LED in communication. Blue &White LED technologies. How they are made? Their application? Brief about blue laser? Stands for light emitting diode. Semiconductor device: p-n junction forward-biased.current emits incoherent narrow spectrum light (due to recombination in transition region near the junction.) Color of the emitted light depends on the chemical of the semiconducting material used. (Near-ultraviolet, visible or infrared.)...

52p lehieukutek 26-12-2009 217 135   Download