A facile method to control the morphologies of barium sulfate particles by using carboxylic carbon quantum dots as a regulator

A very simple method to control the morphologies of BaSO4 particles was reported for the first time. Various morphologies of BaSO4 particles including rectangle, shuttle-like, flower-like and so on were prepared by using carboxylic quantum dots (CCQDs) as morphological regulators in presence of NaCl. The formation mechanism was deduced at the same time.