Lathe Ajay, Ansari Aleem, Badhe Rashmi, Palve Anil M, Garje Shivram S
Department of Chemistry, Mahatma Phule Arts, Science, and Commerce College, Panvel, Navi-Mumbai 410206, India.
Department of Chemistry, University of Mumbai, Vidyanagari, Santacruz (East), Mumbai 400098, India.
ACS Omega. 2021 May 13;6(20):13008-13014. doi: 10.1021/acsomega.1c00121. eCollection 2021 May 25.
In this study, we have reported a one-step synthesis of a TiO@MoS heterostructure. TiO@MoS was synthesized using a facile and cost-effective method. The as-synthesized TiO@MoS heterostructure was characterized by suitable spectroscopic techniques. The obtained TiO@MoS was utilized as a supercapacitor electrode material. Electrochemical studies show that the TiO@MoS 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 Cr to Cr in 120 min with formic acid as a scavenger under direct sunlight. A plausible mechanism of photoreduction of Cr to Cr under natural sunlight irradiation using TiO@MoS is proposed.
在本研究中，我们报道了一种一步合成TiO@MoS异质结构的方法。TiO@MoS是采用简便且经济高效的方法合成的。所合成的TiO@MoS异质结构通过合适的光谱技术进行了表征。所获得的TiO@MoS被用作超级电容器电极材料。电化学研究表明，TiO@MoS异质结构在水溶液中电流密度为1 A/g时具有337 F/g的比电容。此外，首次报道了其作为光催化剂用于光还原有毒六价铬的应用。在直射阳光下，以甲酸作为清除剂，这种异质结构在120分钟内将Cr光还原为Cr。提出了在自然阳光照射下使用TiO@MoS将Cr光还原为Cr的合理机制。
