Green synthesis of fluorescent carbon quantum dots from bagasse: inhibition of calcium sulphate scales

Abstract

The conversion of biomass waste generated in large amounts to value-added materials and energy can reduce environmental pollution, atmospheric CO2 emissions and waste disposal costs in a circular economy. Chemicals,...

Carboxyl-Engineered Silicon Quantum Dots (CSiQDs) as an Efficient Scale Inhibitor: Formulation Inhibition Mechanism

“…The synthesized CQDs were effective due to the abundant oxygen-containing groups in the CQDs surface causing an interference during the nucleation and crystal growth steps as revealed by SEM and XRD analysis of scale crystals. 22 the scale crystals to a different morphology. 7 Zhao et al synthesized carbon quantum dots from pomelo peel waste via a hydrothermal method.…”

“…Water treatment technologies have focused on developing phosphorus-free antiscalants. − Various carboxylated molecules and macromolecules, such as carboxylated quantum dots, poly­(acrylic acid), poly­(maleic acid), poly­(epoxy-succinic) acid, and their derivatives, have become a subject of intense discussion, both in theory and application. ,− Tang et al synthesized carbon quantum dots (CQDs) from bagasse via a hydrothermal method and then tested the product against calcium sulfate scale at different conditions. The synthesized CQDs were effective due to the abundant oxygen-containing groups in the CQDs surface causing an interference during the nucleation and crystal growth steps as revealed by SEM and XRD analysis of scale crystals . Hao et al synthesized carboxyl carbon quantum dots (CCQDs) through the thermal decomposition of citric acid and tested the product against sulfate scales, obtaining good scale inhibition properties under different brine conditions.…”