▎ 摘　　要

NOVELTY - A microbial photoelectrochemical system consists of a biophotoanode comprising an electrogenic bacteria strain and a photocathode. The photocathode comprises indium gallium nitride, gallium nitride, indium phosphide, gallium phosphide, silicon, copper oxide, or copper bismuth oxide. USE - Microbial photoelectrochemical system used for kit (claimed) for removing soluble chemical oxygen demand in municipal wastewater and recovering wasted energy stored in organic wastes for photochemical generation of chemical fuels such as hydrogen gas. ADVANTAGE - The microbial photoelectrochemical system is self-sustained microbial photochemical system and is economical by lowering the material, fabrication and operation cost and by replacing the platinum counter electrode or platinum nanoparticle decorated carbon cloth electrode with low-cost semiconductor materials. The microbial photoelectrochemical system has increased efficiency, e.g. soluble chemical oxygen demand removal rate and power production, and energy conversion efficiency using free-standing microbial photoelectrochemical system for photochemical hydrogen production for providing sustainable energy solution. The chemical fuel is generated in a sustainable manner by using Z-scheme microbial photochemical system that operates in an outdoor environment under natural sunlight illumination with continuous flow of wastewater. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) construction of the microbial photoelectrochemical system, which involves preparing a graphene oxide sheet, contacting the graphene oxide sheet with p-type silicon nanowires, thereby forming a reduced graphene oxide sheet coated with the p-type silicon nanowires, and contacting the reduced graphene oxide sheet coated with p-type silicon nanowires with n-iron oxide nanoparticles; and (2) kit, which comprises the microbial photoelectrochemical system and an electrogenic bacterial strain. The electrogenic bacterial strain is provided in a separate container.