Preparation of ZnO Nanocatalyst Fixed on a Substrate and Perspectives on the Photocatalytic Production of Biogas from Plant Waste

The article considers the production of biofuel from agricultural waste, such as sugars, alcohols, organic acids, by obtaining hydrogen and biogas from them during photocatalytic decomposition. Possible chemical reactions during photocatalysis are presented using the example of the photocatalytic decomposition of methanol into hydrogen and carbon dioxide. Experiments on the preparation of nanostructured ZnO by the hydrothermal method in a solution containing zinc acetate and urotropin have been carried out. The obtained ZnO immobilized on a substrate is supposed to be used as a photocatalyst. A possible design of a reaction vessel and radiation sources for a laboratory setup for producing biogas from model solutions are considered.