Design of multifunctional C@Fe3O4–MoO3 binary nanocomposite for applications in triphenylmethane textile dye amelioration via ultrasonic adsorption and electrochemical energy storage.

In this paper, we present the synthesis of C@Fe 3 O 4 –MoO 3 binary composite were prepared through the facile hydrothermal process. The ultrasonic aided adsorption efficacy was evaluated by studying triphenylmethane dye's adsorption potential. The ultrasonic aided adsorption capacity towards crystal violet was 993.6 mg/g, which is remarkably higher and best fitted with the Langmuir isotherm model and followed pseudo-second-order kinetics. The electrochemical studies working electrode have been prepared with 80 wt% active material, 10 wt% carbon black, and 10% polyvinylidene difluoride to evaluate energy storage characteristics. The C@Fe 3 O 4 –MoO 3 demonstrated an excellent specific capacitance of 40.94 F/g with better retention and stability, making it a potential cathode material for next-generation electrochemical energy storage devices. [Display omitted] • Ultrasonication play a major role in remediation of crystal violet via the sono-adsorption process. • Binary composite C@Fe 3 O 4 –MoO 3 exhibits an excellent adsorption capacity of 993.6 mg/g. • Composite excellent specific capacitance of 40.94 F/g with exceptional stability and capacity retention of 94.86%. • Recyclability and regeneration of the binary composite were explored. [ABSTRACT FROM AUTHOR]