Synthesis and Application of CCQDs as a Novel Type of Environmentally Friendly Scale Inhibitor

02 engineering and technology 0210 nano-technology 01 natural sciences 0104 chemical sciences
DOI: 10.1021/acsami.8b19015 Publication Date: 2019-02-07T14:19:50Z
ABSTRACT
Carbon quantum dots (CQDs) are promising nanomaterials since they have smaller particle size, excellent biocompatibility, and low toxicity. However, no  one has found their high-scale inhibition performance so far. In this article, a new kind of green scale inhibitor, carboxyl carbon quantum dots (CCQDs), was synthesized through a simple method of thermal decomposition of citric acid. The as-prepared CCQDs have excellent scale inhibition performance for CaSO4 and BaSO4. With a static test of scale inhibition at a temperature of 0-80 °C, the antiscaling efficiency can reach 100% with low additions of CCQDs.
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