Microorganisms@MIL-125 (Ti): An Amorphous Metal-Organic Framework Induced by Microorganisms and Their Applications.

Amorphous metal-organic framework (MOF)-based materials have attracted considerable attention as an emerging class of nanomaterials. Herein, novel microorganisms@MIL-125 (Ti) composites including yeast@MIL-125 (Ti), PCC 6803@MIL-125 (Ti), and @MIL-125 (Ti) composites were respectively synthesized by self-assembling MOFs on the microorganisms' surface. The functional groups on the microorganisms' surface induced structural defects and participated in the formation of MIL-125 (Ti) composites. Finally, the application of microorganisms@MIL-125 (Ti) composites for the removal of glyphosate from aqueous solution was selected as a model reaction to illustrate their potential for environmental protection. The present method is not only economical but also has other advantages including ease of operation, environmentally friendly assay, and high adsorption. The maximum adsorption capacity of MIL-125 (Ti) was 1096.25 mg g, which was 1.74 times that of crystalline MIL-125 (Ti). Therefore, the microorganisms@MOFs composites will have broad application prospects in energy storage, drug delivery, catalysis, adsorbing toxic substances, sensing, encapsulating and delivering enzymes, and in other fields.