{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,28]],"date-time":"2026-07-28T15:27:50Z","timestamp":1785252470415,"version":"3.55.0"},"reference-count":44,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2025,4,30]],"date-time":"2025-04-30T00:00:00Z","timestamp":1745971200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Natural Science Foundation of China","award":["22408286"],"award-info":[{"award-number":["22408286"]}]},{"name":"National Natural Science Foundation of China","award":["2024JC-YBQN-0504"],"award-info":[{"award-number":["2024JC-YBQN-0504"]}]},{"name":"National Natural Science Foundation of China","award":["YPML-20240502043"],"award-info":[{"award-number":["YPML-20240502043"]}]},{"name":"National Natural Science Foundation of China","award":["22JSQ004"],"award-info":[{"award-number":["22JSQ004"]}]},{"name":"Natural Science Basic Research Program of Shaanxi","award":["22408286"],"award-info":[{"award-number":["22408286"]}]},{"name":"Natural Science Basic Research Program of Shaanxi","award":["2024JC-YBQN-0504"],"award-info":[{"award-number":["2024JC-YBQN-0504"]}]},{"name":"Natural Science Basic Research Program of Shaanxi","award":["YPML-20240502043"],"award-info":[{"award-number":["YPML-20240502043"]}]},{"name":"Natural Science Basic Research Program of Shaanxi","award":["22JSQ004"],"award-info":[{"award-number":["22JSQ004"]}]},{"name":"Scientific and Technological Project of Yunnan Precious Metals Laboratory","award":["22408286"],"award-info":[{"award-number":["22408286"]}]},{"name":"Scientific and Technological Project of Yunnan Precious Metals Laboratory","award":["2024JC-YBQN-0504"],"award-info":[{"award-number":["2024JC-YBQN-0504"]}]},{"name":"Scientific and Technological Project of Yunnan Precious Metals Laboratory","award":["YPML-20240502043"],"award-info":[{"award-number":["YPML-20240502043"]}]},{"name":"Scientific and Technological Project of Yunnan Precious Metals Laboratory","award":["22JSQ004"],"award-info":[{"award-number":["22JSQ004"]}]},{"name":"Shaanxi Fundamental Science Research Project for Mathematics and Physics","award":["22408286"],"award-info":[{"award-number":["22408286"]}]},{"name":"Shaanxi Fundamental Science Research Project for Mathematics and Physics","award":["2024JC-YBQN-0504"],"award-info":[{"award-number":["2024JC-YBQN-0504"]}]},{"name":"Shaanxi Fundamental Science Research Project for Mathematics and Physics","award":["YPML-20240502043"],"award-info":[{"award-number":["YPML-20240502043"]}]},{"name":"Shaanxi Fundamental Science Research Project for Mathematics and Physics","award":["22JSQ004"],"award-info":[{"award-number":["22JSQ004"]}]},{"name":"China Fundamental Research Funds for the Central Universities","award":["22408286"],"award-info":[{"award-number":["22408286"]}]},{"name":"China Fundamental Research Funds for the Central Universities","award":["2024JC-YBQN-0504"],"award-info":[{"award-number":["2024JC-YBQN-0504"]}]},{"name":"China Fundamental Research Funds for the Central Universities","award":["YPML-20240502043"],"award-info":[{"award-number":["YPML-20240502043"]}]},{"name":"China Fundamental Research Funds for the Central Universities","award":["22JSQ004"],"award-info":[{"award-number":["22JSQ004"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nanomaterials"],"abstract":"<jats:p>Formaldehyde, a pervasive indoor air pollutant posing significant health risks, has driven extensive research into advanced mitigation strategies to ensure safer living environments. Herein, this study presents a synthesis method for the large-scale production of hydrogenated TiO2 (P25) loaded with PtAu nanoalloys (P25(H)-PtAu), using a combination of ball milling and high-temperature annealing. Hydrogenation-induced defect-rich TiO2 efficiently improves visible light absorption, enhancing the utilization of visible light in photocatalytic reactions. Mechanochemical ball milling was employed to prepare ultrasmall PtAu nanoalloys with a size of 3.7 \u00b1 0.1 nm, which were uniformly dispersed on the surface of P25(H). Density functional theory (DFT) results indicate that PtAu nanoalloys synergistically enhance charge separation via Schottky junctions and surface reaction kinetics by optimizing reactant adsorption. As a result, P25(H)-PtAu achieves industrially relevant formaldehyde removal efficiency (97.8%) under ambient light conditions while maintaining scalability (10 g batches). This work provides a scalable framework for developing manufacturable photocatalysts, with immediate applications in heating, ventilation and air conditioning systems, and air purifiers.<\/jats:p>","DOI":"10.3390\/nano15090683","type":"journal-article","created":{"date-parts":[[2025,5,4]],"date-time":"2025-05-04T20:42:37Z","timestamp":1746391357000},"page":"683","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Scalable Synthesis of PtAu Nanoalloy-Decorated Hydrogenated TiO2 for High-Efficiency Indoor Formaldehyde Photodegradation"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-5033-3923","authenticated-orcid":false,"given":"Hairui","family":"Cai","sequence":"first","affiliation":[{"name":"MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, Key Laboratory of Shaanxi for Advanced Materials and Mesoscopic Physics, State Key Laboratory for Mechanical Behavior of Materials, School of Physics, Xi\u2019an Jiaotong University, No. 28 West Xianning Road, Xi\u2019an 710049, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Benjamin","family":"Yang","sequence":"additional","affiliation":[{"name":"Shanghai American School Pudong Campus, No. 1600 Lingbai Highway, Shanghai 201201, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jie","family":"Hou","sequence":"additional","affiliation":[{"name":"MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, Key Laboratory of Shaanxi for Advanced Materials and Mesoscopic Physics, State Key Laboratory for Mechanical Behavior of Materials, School of Physics, Xi\u2019an Jiaotong University, No. 28 West Xianning Road, Xi\u2019an 710049, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ziqi","family":"Wang","sequence":"additional","affiliation":[{"name":"MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, Key Laboratory of Shaanxi for Advanced Materials and Mesoscopic Physics, State Key Laboratory for Mechanical Behavior of Materials, School of Physics, Xi\u2019an Jiaotong University, No. 28 West Xianning Road, Xi\u2019an 710049, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhuo","family":"Li","sequence":"additional","affiliation":[{"name":"School of Electrical Engineering, Xi\u2019an Jiaotong University, No. 28 West Xianning Road, Xi\u2019an 710049, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,4,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"3649","DOI":"10.1039\/C6CY00062B","article-title":"Room-temperature catalytic oxidation of formaldehyde on catalysts","volume":"6","author":"Nie","year":"2016","journal-title":"Cat. 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