107 / 2023-07-20 14:19:12

Investigating the role of selectivity, tailoring, and recycling of photocatalysts on metabolic pathway of biohydrogen production from agricultural wastes

Biohydrogen,nanomaterials,fermentatation,Biofules; fermentation; biomass

At present, low hydrogen generation activity, low substrate conversion rate, and minimal light conversion rate are even bottlenecks choking the improvement of hydrogen production performance by photo-fermentation. Recently, the incorporation of photo nanocatalysts has shown remarkable positive effect on the hydrogen production yield and hydrogen production rate. The smaller size and larger surface area of photo nanocatalysts provide more reaction sites for the enzyme to interact with the substrate, thereby catalyzing biological hydrogen production. Moreover, presence of photo nanocatalysts also stimulate the ability to absorb e^- and enhance the transfer rate between the nanocatalyst and the enzyme, thereby promoting hydrogen production. Effect of photocatalysts on metabolic pathway of biohydrogen production from agricultural wastes has been investigated. The correlation between loading concentration of photocatalysts and metabolic byproducts has been investigated. Moreover generation of electron hole pair is the key mechanism which effect the biohydrogen production rate and yield. Thus selectivity and tailoring of the photocatalysts provide the platform for higher biomass conversion, thus eventually biohydrogen production.