物理化学学报2026，Vol.42Issue(10)：75-88,14.DOI:10.1016/j.actphy.2026.100237
界面工程II型异质结ZnIn2S4/SCN用于增强纯水中光催化H2O2合成
Interface engineered Type-Ⅱ heterojunction ZnIn2S4/SCN for enhanced photocatalytic H2O2 synthesis from pure water
摘要
Abstract
Hydrogen peroxide(H2O2)is widely utilised as a green chemical across numerous industries.Photocatalytic synthesis of H2O2 represents a highly promising green synthetic pathway.However,the application of single semiconductors is constrained by limitations in photogenerated charge separation and low photocatalytic reaction efficiency.Constructing heterojunctions to enhance interfacial electron transfer and improve charge separation is crucial for enhancing photocatalytic activity.Here,a two-step approach is employed to construct a Type-II heterojunction ZnIn2S4/SCN,forming a directional and high-speed e−/h+transport channel.The built-in electric field(BEF)provides the driving force for the transport and separation of e−/h+at the interface.Thanks to a well-designed interface,the high recombination rate of photo-generated electron-hole pairs within a single photocatalyst and its relatively low photocatalytic activity have been effectively overcome.The ZnIn2S4/SCN heterojunction achieves a hydrogen peroxide yield of 257.0 μmol g−1 h−1 under air conditions via the oxygen reduction reaction(ORR)mechanism in pure water medium,realising highly efficient photocatalytic H2O2 synthesis.Based on a heterojunction design,this study provides an important reference for the highly efficient photocatalytic synthesis of hydrogen peroxide.关键词
II型异质结/界面/光催化/过氧化氢/纯水Key words
Type-II heterojunction/Interface/Photocatalysis/Hydrogen peroxide/Pure water分类
化学化工引用本文复制引用
权永康,李瑞东,阳云飞,丁述国,陈榕兴,黄剑莹,吴永豪,赖跃坤..界面工程II型异质结ZnIn2S4/SCN用于增强纯水中光催化H2O2合成[J].物理化学学报,2026,42(10):75-88,14.基金项目
国家自然科学基金国际(地区)合作与交流项目(22361162607) （地区）
国家自然科学基金(22375047,22378068) （22375047,22378068）
国家重点研发计划(2022YFB3804905,2022YFB3804900) （2022YFB3804905,2022YFB3804900）
福建省自然科学基金(2022J01568) （2022J01568）
陕西省自然科学基础研究计划(2024JC-JCQN-19) （2024JC-JCQN-19）
中国博士后科学基金(2024M752618) （2024M752618）
