Cellulose Quantum Dots Nearly Double Solar Hydrogen Production

A research team has developed a visible-light photocatalyst that nearly doubled hydrogen production by decorating cadmium sulfide (CdS) nanoparticles with carbon quantum dots (CQDs) derived from cellulose. The optimized composite produced 7,812.5 (micro)mol of hydrogen per gram within five hours, compared with 4,633.5 (micro)mol/g for unmodified CdS. The CQDs improved light harvesting, accelerated…