Research progress in photocatalytic denitrification materials and their structural modifications
Significant progress has been made in the research of photocatalytic oxidation denitrification materials,building upon traditional denitrification technologies.This paper provides an overview of this progress,with a specific focus on various categories of catalysts,including titanium-based,zinc-based,i-ron-based,carbon-based,and bismuth-based catalysts.The analysis primarily delves into the band gap structure,denitrification mechanisms,and conversion efficiency of these photocatalytic oxidation denitrifi-cation materials,offering a comprehensive comparison.Additionally,the study explores the impact of vari-ous modification techniques,such as constructing heterojunctions,ion doping,surface modifications,and morphology regulation,on the catalytic activity of these photocatalytic materials.The findings indicate that key areas of future development and research in this field include adjusting the electronic structure of cat-alysts,creating heterostructures,expanding the absorption range to encompass visible light,and enhancing the catalysts'resistance to water and sulfur.These aspects are expected to be pivotal directions for ad-vancement and in-depth investigation.
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