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Herein, a spatial specific S\u2010scheme heterojunction design by introducing a novel semiconducting pair with a S\u2010scheme mechanism in a purpose\u2010designed Janus core\u2013shell\u2010structured hollow morphology is reported. In this design, TiO<jats:sub>2<\/jats:sub> nanocrystals are grown inside the inner wall of resorcinol\u2010formaldehyde (RF) resin hollow nanocakes with a reverse bumpy ball morphology (TiO<jats:sub>2<\/jats:sub>@RF). The S\u2010scheme heterojunction preserves the high redox ability of the TiO<jats:sub>2<\/jats:sub> and RF pair, the spatial specific Janus design enhances the charge separation, promotes active site exposure, and reduces the H<jats:sub>2<\/jats:sub>O<jats:sub>2<\/jats:sub> decomposition to a large extent. The TiO<jats:sub>2<\/jats:sub>@RF photocatalyst shows a high H<jats:sub>2<\/jats:sub>O<jats:sub>2<\/jats:sub> yield of 66.6\u00a0mM\u00a0g<jats:sup>\u22121<\/jats:sup>\u00a0h<jats:sup>\u22121<\/jats:sup> and solar\u2010to\u2010chemical conversion efficiency of 1.11%, superior to another Janus structure (RF@TiO<jats:sub>2<\/jats:sub>) with the same heterojunction but a reversed Janus spatial arrangement, and most reported photocatalysts under similar reaction conditions. The work has paved the way toward the design of next\u2010generation photocatalysts for green synthesis of H<jats:sub>2<\/jats:sub>O<jats:sub>2<\/jats:sub> production.<\/jats:p>","DOI":"10.1002\/smll.202300292","type":"journal-article","created":{"date-parts":[[2023,4,8]],"date-time":"2023-04-08T12:05:23Z","timestamp":1680955523000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":58,"title":["Spatial Specific Janus S\u2010Scheme Photocatalyst with Enhanced H<sub>2<\/sub>O<sub>2<\/sub> Production Performance"],"prefix":"10.1002","volume":"19","author":[{"given":"Chunhong","family":"Xia","sequence":"first","affiliation":[{"name":"School of Chemistry and Molecular Engineering East China Normal University  Shanghai 200241 P. R. 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