Simultaneous glucose sensing and biohydrogen evolution from direct photoelectrocatalytic glucose oxidation on robust Cu2O–TiO2 electrodes†
Abstract
We report simultaneous photoelectrocatalytic (PEC) glucose sensing and biohydrogen generation for the first time from the direct PEC oxidation of glucose at multifunctional and robust Cu2O–TiO2 photocatalysts. Striking improvement of 30% in overall H2 gas evolution (∼122 μmol h−1 cm−2) by photoholes assisted glucose oxidation opens a new platform in solar-driven PEC biohydrogen generation.