Surface-modified TiO2 nanofibers (NFs) with tunable visible-light photoactive catalysts were synthesised through electrospinning, followed by a sulfidation process. The utilization of sodium-based sulfidation precursors effectively led to the diffusion and integration of sulfur impurities into TiO2, modifying its band function. The optical band function of the sulfur-modified TiO2 NFs can be ea...

The Cu-based oxygen carrier is a promising material in the chemical looping with uncoupling (CLOU) process, while its performance CLOU significantly dependent on release properties. However, study of mechanisms not comprehensive enough. In this work, detailed CuO(110) and CuO(111) are researched at an atomic level using density functional theory (DFT) method, including formation O2, desorption ...

Chemical looping with oxygen uncoupling (CLOU) is an efficient process for solid fuel combustion CO2 capture. This requires a material that capable of releasing gaseous O2 within high temperature window. Screening was performed reactive CuO-based carriers prepared the CLOU magnetic properties easy separation from ashes. The effects CuO fraction, method preparation (with prior Fe-Mn support or b...