High-Quality Borophene Quantum Dots Realization and Their Application in Photovoltaic Device

Surface modification is an effective strategy to promote charge transport and extraction, reduce the carrier recombination probability and ultimately improve the performance of perovskite solar cells (PSCs). Borophene is the...

Influence of Different Preparation Methods of Silver-Modified Carbon Nitride on the Photocatalytic Activity towards Indigo Carmine Dye

Silver nanoparticles (Ag NPs) may increase photocatalytic activity of widely used photocatalysts under visible light irradiation and decrease recombination probability of photogenerated electrons and holes. In this paper, we report three different preparation methods to obtain Ag/C3N4 nanocomposites. We used Ag nanoparticles a) synthesized by using sodium borohydride, b) synthesized by using UV 365 nm LED and c) already prepared and purchased from company nanoIron. The Ag NPs have been loaded on thermally exfoliated carbon nitride with the aim to form 5 wt.% Ag/C3N4 nanocomposites. Further their photocatalytic activity was tested towards Indigo carmine dye (IC) under 416 nm LED. The results show that method a) loaded different amount and size of Ag NPs on the surface of C3N4, b) changed optoelectronic behaviors of nanocomposites and c) significantly influenced their photocatalytic activity.

Growth of Zn0.5Cd0.5S/α-Ni(OH)2 heterojunction by a facile hydrothermal transformation efficiently boosting photocatalytic hydrogen production

A rationally designed/constructed catalyst with α-Ni(OH)2 over Zn–Cd–S shows enhanced photocatalytic hydrogen evolution attributed to the interface providing a fast charge transfer channel and reducing the photo-generated carrier recombination probability.

Estimate the lifetime of thermoluminescence traps in general-orders of kinetics model of chilli powder samples by using the R package TGCD

The kinetic parameters of thermoluminescene (TL) glow peaks of chilli powder irradiated by gamma rays with the different doses of 0, 4 and 8 kGy (i.e. activation energies (E), order of kinetics (b), trapping and recombination probability coefficients (R) and frequency factors (s)) have been determined and evaluated by glow curve deconvolution (GCD) method using the glow curve data to estimate lifetime of TL traps. The kinetic parameters of TL glow peaks are calculated by modeled first-, second-, generalorders of kinetics (GOK) thanking to the computer by using the R package TGCD. The results obtained as comparing the lifetime values of the three samples showed that the values of the 8 kGy irradiated-samples were the lowest whereas the 4 kGy irradiated-samples’value were greater than the non-irradiated samples’ one time.