Sodium citrate-assisted anion exchange strategy for construction of Bi2O2CO3/BiOI photocatalysts

Add time:09/28/2019    Source:sciencedirect.com

Bi2O2CO3/BiOI heterojuncted photocatalysts were constructed through a facile partial anion exchange strategy starting from BiOI microspheres and urea with the assistance of sodium citrate. The content of Bi2O2CO3 in the catalysts was regulated by modulating the amount of urea as a precursor, which was decomposed to generate CO32− in the hydrothermal process. Citrate anion plays a key role in controlling the morphology and composition of the products. The Bi2O2CO3/BiOI catalysts display much higher photocatalytic activity than pure BiOI and Bi2O2CO3 towards the degradation of rhodamine B (RhB) and bisphenol A (BPA). The enhancement of photocatalytic activity of the heterojuncted catalysts is attributed to the formation of p–n junction between p-BiOI and n-Bi2O2CO3, which is favorable for retarding the recombination of photoinduced electron-hole pairs. Moreover, the holes are demonstrated to be the main active species for the degradation of RhB and BPA.

We also recommend Trading Suppliers and Manufacturers of ANION STANDARD - CITRATE (cas 126-44-3). Pls Click Website Link as below: cas 126-44-3 suppliers

Prev:The addition of citrate stimulates the production of acetoin and diacetyl by a citrate-positive Lactobacillus crustorum strain during wheat sourdough fermentation
Next:Inkjet printing of SILVER CITRATE (cas 126-45-4) conductive ink on PET substrate)