Development of Carbon Nanotube as Highly Active Photocatatlytic Adsorbent for Treatment of Acid Red 88 Dye

Abstract

In recent years, photocatalysts have been used in various fields, and are particularly attracting attention in the fields of environment, medicine, and agriculture. A large number of catalytic active sites are required to produce a more efficient photocatalyst, and for that purpose, a large specific surface area is desired. Therefore, in this study, in order to develop a highly active photocatalytic material, the outer diameter of titanium oxide nanotubes was controlled by a template synthesis method using carbon nanotubes with different outer diameters to increase the specific surface area. Characterization was carried out by using diffent analytical instruments such as UV-Spectrophotomoter, XRD, SEM, TEM, BET. Results show using titanium oxide nanotubes with a smaller outer diameter tended to have higher photocatalytic activity (almost complete degradation was obtained when 10-20nm was used).

Tuning Performance of Heterojunction Flexible Photodetectors by Energy Band Alignment Engineering

“…The deviation range of 8% in normalized spectral responsivity and a 99.99% yield are confirmed for the three different classes of flexible devices (pristine 2D PbI 2 flake, pristine CdS 0.22 Se 0.78 nanobelt, and 1D CdS 0.22 Se 0.78 nanobelt/2D PbI 2 flake hybrid heterojunction) fabricated from two separate sample batches and the finding depicted in Figure i. Thanks to a heterojunction design that could be efficiently assembled on flexible tape, it is amenable to a scaled-up building strategy, which may ultimately enable the formulation of modern photonic sensors. ,− …”