2, Tsinghua University, Beijing, Beijing, China
3, The University of Texas at Austin, Austin, Texas, United States
It is said that the future wars will be fought on water due to the fact that the water resources are being exhausted so soon. There is about 71% water in the world but the drinkable water is scarce due to the presence of various impurities. Thus, the lack of drinkable water resources and pollution of these resources due to rapid industrialization have increased interest in finding ways to purify the available water. The nanocomposites made up of ferrites and two-dimensional (2D) materials are getting significant attention owing to the fact that the 2D materials do not only provide an additional conducting base to the electrons generated as a result of photo-ionized electron-hole pair but also enhance the ferrites nanoparticles surface area.
To channelize further the research in cleaning-up the water, we have synthesized 2D Titanium Carbides (MXene)/Bismuth ferrites nanoparticle nanocomposites by using the simple and cost-effective hydrothermal process.
The basic characterization indicate that the Aluminium present in Ti3AlC2 MAX parent compound was successfully removed in order to get the 2D MXene sheets. Also, the Bismuth ferrites nanoparticles were synthesized by using the double-solvent sol-gel technique. The photocatalytic activity was tested under visible light irrdiation was observed which showed 100% dye-degradation in only 42 minutes. The results are encouraging since the other Carbon/ferrites composites showed less dye-degradation. Moreover, the surface area of our nanocmposite is as high as 147 m2g-1. with large electron-hole (e- - h+) pair generation observed using the photoluminescence (PL) spectra. Thus, the larger surface area and higher e- - h+ pairs provide favorable environment for efficient organic dye-degradation.