Scalable Synthesis of Aragonite Whiskers Under Higher Initial Ca²⁺ Concentrations.

ABSTRACT: Calcium carbonate (CaCO₃) whiskers are promising materials for the high-value utilization of calcium-based resources. Here, aragonite whiskers were synthesized at a carbonation temperature of 90 °C using carbide slag ammonium leachate as the calcium source and CO₂ as the precipitant. The effects of control agents, carbonation temperature, Ca²⁺ solution feeding rate, CO₂ flow rate, and stirring speed on whisker morphology and aspect ratio were systematically investigated. Characterization via SEM and XRD revealed that the optimal conditions-carbonation temperature of 90 °C, Ca²⁺ feeding rate of 1.2 mL∙min^-1, ethanol addition of 2 mL, CO₂ flow rate of 150 mL∙min^-1, and stirring speed of 300 rpm-yielded un

SUBMITTER: Wang R 

PROVIDER: S-EPMC12736146 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature