Uncontrolled emission of greenhouse gases caused by consumption of fossil fuels has led to the urgent need to develop low-emitting energy technologies such as those exploiting renewable energies. In this context, hydrogen (H2) represents an opportunity to enhance the development of such technologies, in light of the possibility to use it as an energy storage for non-programmable renewables, and for its potential to decarbonize key emitting sectors such as the transport sector. This study is therefore focused on photocatalytic generation of H2 using cellulose as sacrificial agent, with the aim of valorizing renewable resources like solar energy and the chemical energy contained in an abundant biopolymer.