MoS2-based nanocomposites and aerogels for antibiotic pollutants removal from wastewater by photocatalytic degradation process: A review

Abstract

Photocatalytic technologies based on molybdenum disulfide (MoS₂) catalysts are effective, eco-friendly, and promising for antibiotic pollutants treatment. The technologies used by MoS₂-based nanocomposites and aerogels for efficient degradation of antibiotics are reviewed in detail for the first time in this paper. The fundamental aspects of MoS₂ were comprehensively scrutinized, encompassing crystal structure, optical properties, and photocatalytic principle. Then, the main synthesized methods and advantages/disadvantages for the preparation of MoS₂-based nanocomposites and aerogels were systematically presented. Besides, a comprehensive overview of diverse MoS₂-based nanocomposites and aerogels photo-degradation systems that enhanced the degradation of antibiotic pollutants were revealed. Meanwhile, the photo-degradation mechanism concentrated on the photoelectron transfer pathways and reactive oxygen species (ROS) were systematically evaluated. Finally, the challenges and perspectives for deeply development of MoS₂-based nanocomposites and aerogels were discussed. This review may help researchers to deeply understand the research status of MoS₂-based nanocomposites and aerogels for antibiotics removal, and makes clear the photo-degradation mechanism from photoelectron transfer pathways and ROS aspects of MoS₂-based nanocomposites and aerogels.

Keywords: Aerogel; Antibiotic pollutants; Degradation mechanism; MoS(2); Photocatalytic.