Alkali-assisted “cutting-thin” technique into a monolayer graphene and its distinctive defects engineering for efficient photocatalytic hydrogen production

Defect engineering is an effective path to prune the performance of photocatalysts but are rarely reported in graphene-semiconductor composites. Here, the few-layered graphene materials with different defect contents are obtained through facile alkali-assisted “cutting-thin” technique. Meanwhile, the monolayer graphene with low defect content is also synthesized on a variety of biomasses via the same uncomplicated process. Importantly, the...