Deep Eutectic Solvent–Assisted Synthesis of Bismuth-Based Heterostructured Photocatalysts for Water Splitting and Wastewater Treatment

Abstract

This chapter introduces deep eutectic solvents as a green solvent and a designer solvent to develop well-defined nano/microstructured bismuth-based facet engineered and heterojunction photocatalysts for water splitting and wastewater treatment. Several reports for the use of deep eutectic solvents in the synthesis of inorganic materials have been published, many of them under the heading of “ionothermal synthesis”. In the past two decades, room temperature ionic liquids have attracted much attention in the field of catalysis, electrochemistry, materials synthesis, and the pretreatment of biomass. It discusses the fabrication of bismuth-based metal oxide heterostructured materials for photocatalytic wastewater treatment and water splitting applications. Novel heterostructure functional materials with novel physicochemical properties produced in deep eutectic solvents for their use in heterogeneous catalytic activities are one aspect of the emerging trends. DESs deserve exploration and exploitation in countless fields.