Hierarchical layered nanostructure of MoS2/boron doped reduced graphene oxide composites under visible light irradiation for effective antibiotic degradation and hexavalent chromium reduction

Hierarchical layered structures of dichalcogenides have assumed significant part in the feasible removal of harmful metals and antibiotic degradation. In this paper, the hierarchical MoS2 was fabricated with BrGO sheets using facile and low-cost hydrothermal approach and characterized through XRD, HRSEM, HRTEM, Raman, and UV-DRS. The MoS2/B-rGO nanocomposites exhibit higher photo-responsive region than the visible window. From the UV-DRS studies, the optimized band gap level calculated as 1.7 eV for MoS2/B-rGO this is due to a direct connection between the B-rGO layers would strongly suppress the electron-hole pair recombination. The maximum photocatalytic degradation efficiency of-85.3% towards Tetracycline hydrochloride (TC) and Cr (VI) to Cr (III) of-80.1% was achieved. This investigation was likely to be new open window for the development of environmental and energy applications for future generations. (c) 2021 Elsevier B.V. All rights reserved.

Automated summary

In this study, hierarchical MoS2 was synthesized and combined with B-rGO sheets to form MoS2/B-rGO nanocomposites, exhibiting higher photo-responsive region. The optimized band gap level of 1.7 eV for MoS2/B-rGO was found to greatly suppress electron-hole pair recombination, leading to efficient photocatalytic degradation of Tetracycline hydrochloride and Cr(VI) to Cr(III). This research provides a new avenue for future environmental and energy applications.