Hydrogen peroxide(H_(2)O_(2))is a versatile oxidant widely used in pharmaceuticals,environmental protection,and chemical manufacturing.However,conventional H_(2)O_(2)production relies on energy-intensive processes and...Hydrogen peroxide(H_(2)O_(2))is a versatile oxidant widely used in pharmaceuticals,environmental protection,and chemical manufacturing.However,conventional H_(2)O_(2)production relies on energy-intensive processes and costly metal-based catalysts,raising economic and environmental concerns.As a sustainable alternative,photocatalytic H_(2)O_(2)synthesis harnesses solar energy,water,and oxygen under mild conditions.This review summarizes recent advancements in the development of metal-free organic semiconductors for photocatalytic H_(2)O_(2)generation.Notably,it delves into novel surface reaction mechanisms,including anthraquinone(AQ)intermediate,peroxy acid intermediate,bipyridine intermediate,and dual channel synergistic mechanisms for optimizing photocatalyst performance.This review also umderscores the critical role of advanced characterization techniques,including in-situ characterizations and computational simulations,in elucidating structure-property relationships and monitoring real-time catalytic processes.By presenting novel strategies for material modification and exploring potential device-level applications,the review aims to inspire further research and facilitate the industrial implementation of photocatalytic H_(2)O_(2)production,thereby advancing sustainable chemical manufacturing.展开更多
基金supported by the National Natural Science Foundation of China(22202128 and U24A20540)the Shaanxi Fundamental Science Research Project for Chemistry and Biology(23JHQ074)+1 种基金the Special Fund Project of Jiangsu Province for Scientific and Technological Innovation in Carbon Peaking and Carbon Neutrality(BK20220023)the Tian Ka Ping Scholar Program。
文摘Hydrogen peroxide(H_(2)O_(2))is a versatile oxidant widely used in pharmaceuticals,environmental protection,and chemical manufacturing.However,conventional H_(2)O_(2)production relies on energy-intensive processes and costly metal-based catalysts,raising economic and environmental concerns.As a sustainable alternative,photocatalytic H_(2)O_(2)synthesis harnesses solar energy,water,and oxygen under mild conditions.This review summarizes recent advancements in the development of metal-free organic semiconductors for photocatalytic H_(2)O_(2)generation.Notably,it delves into novel surface reaction mechanisms,including anthraquinone(AQ)intermediate,peroxy acid intermediate,bipyridine intermediate,and dual channel synergistic mechanisms for optimizing photocatalyst performance.This review also umderscores the critical role of advanced characterization techniques,including in-situ characterizations and computational simulations,in elucidating structure-property relationships and monitoring real-time catalytic processes.By presenting novel strategies for material modification and exploring potential device-level applications,the review aims to inspire further research and facilitate the industrial implementation of photocatalytic H_(2)O_(2)production,thereby advancing sustainable chemical manufacturing.
