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Single-Step Production of a TiO2@MoS2 Heterostructure and Its Applications as a Supercapacitor Electrode and Photocatalyst for Reduction of Cr(VI) to Cr(III).

ABSTRACT: In this study, we have reported a one-step synthesis of a TiO2@MoS2 heterostructure. TiO2@MoS2 was synthesized using a facile and cost-effective method. The as-synthesized TiO2@MoS2 heterostructure was characterized by suitable spectroscopic techniques. The obtained TiO2@MoS2 was utilized as a supercapacitor electrode material. Electrochemical studies show that the TiO2@MoS2 heterostructure possesses a specific capacitance of 337 F/g at a current density of 1 A/g in an aqueous solution. Furthermore, an application as a photocatalyst for the photoreduction of toxic hexavalent chromium was reported for the first time. This heterostructure showed the photoreduction of Cr6+ to Cr3+ in 120 min with formic acid as a scavenger under direct sunlight. A plausible mechanism of photoreduction of Cr6+ to Cr3+ under natural sunlight irradiation using TiO2@MoS2 is proposed.

SUBMITTER: Lathe A 

PROVIDER: S-EPMC8158794 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature

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Single-Step Production of a TiO<sub>2</sub>@MoS<sub>2</sub> Heterostructure and Its Applications as a Supercapacitor Electrode and Photocatalyst for Reduction of Cr(VI) to Cr(III).

Lathe Ajay A   Ansari Aleem A   Badhe Rashmi R   Palve Anil M AM   Garje Shivram S SS  

ACS omega 20210513 20

In this study, we have reported a one-step synthesis of a TiO<sub>2</sub>@MoS<sub>2</sub> heterostructure. TiO<sub>2</sub>@MoS<sub>2</sub> was synthesized using a facile and cost-effective method. The as-synthesized TiO<sub>2</sub>@MoS<sub>2</sub> heterostructure was characterized by suitable spectroscopic techniques. The obtained TiO<sub>2</sub>@MoS<sub>2</sub> was utilized as a supercapacitor electrode material. Electrochemical studies show that the TiO<sub>2</sub>@MoS<sub>2</sub> heterostruct  ...[more]

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