(84b) Supercritical Continuous Synthesis of Heterogeneous Nitrides Nanophotocatalysts
AIChE Annual Meeting
2019 AIChE Annual Meeting
Engineering Sciences and Fundamentals
Materials Synthesis and Processing with Compressed or Supercritical Fluids
Monday, November 11, 2019 - 8:17am to 8:34am
In this talk, the first section will highlight the synthesis of GaN quantum dots (QDs) using a supercritical milli-tubular reactor working with hexane using two different process techniques (co-flow and pre-heater). We will detail the process employed and provide the advantageous features of the pre-heater approach and the reasons for opting it over co-flow technique. The GaN nanomaterial is active in the UV region, the subsequent work of this presentation will focus on the synthesis of GaxIn1-xN solid solution nanomaterial by introducing InN (active in the IR region) in GaN crystalline domain using double source precursors in a supercritical mixture. This solid solution rendered the materials active in the visible region. The talk will eventually provide insight in combining such materials with Titania (TiO2) for creating a nanocomposites resulting in a type II heterojunction and some demonstration of photocatalytic reactions performed with them.