{"title":"An Eco-Friendly Sb2Se3-Based Superhydrophobic Photothermal Coating for Scalable Anti-icing and De-icing Applications.","authors":"Chao Wang,Li Zhong,Jixiang Zhang,Minghui Zhan,Kaixiang Ren,Pan Wang,Bianhua Liu,Zhenyang Wang,Jun Zhao","doi":"10.1021/acsami.5c03999","DOIUrl":null,"url":null,"abstract":"The integration of superhydrophobicity and photothermal conversion offers transformative potential for addressing ice accretion challenges in outdoor infrastructure. However, current technologies are constrained by fluorinated chemical dependencies, complex manufacturing workflows, and limited substrate adaptability. Herein, we present a fluorochemical-free, eco-friendly, scalable coating system through a one-step spray deposition of antimony selenide (Sb2Se3), stearic acid (STA), and poly(methyl methacrylate) (PMMA). The synergistic incorporation of Sb2Se3 and STA creates a micro/nano structure with enhanced surface roughness (Ra = 189.937 nm) and low surface energy, achieving exceptional liquid repellency (water contact angle: 165°, sliding angle: 3°). The optimized Sb2Se3/STA/PMMA (Sb2Se3-SP) composite demonstrates remarkable substrate versatility, adhering robustly to diverse surfaces (metals, glass, paper, and wood) without requiring pretreatment. Notably, the Sb2Se3-SP coating exhibits a 4.67-fold extension in delayed ice freezing time (280 s at -20 °C) compared to that of uncoated substrate (60 s at -20 °C). Furthermore, the intrinsic photothermal conversion capability of Sb2Se3 enables rapid surface heating, rising to 80.0 °C in 180 s under 1-sun illumination (0.14 W/cm2), facilitating autonomous ice melting without external energy supply. Besides, the Sb2Se3-SP coating exhibits outstanding mechanical durability and self-cleaning property. This scalable, eco-conscious fabrication approach bridges the gap between laboratory innovation and industrial deployment, offering a sustainable pathway for energy-efficient anti-icing solutions in aviation power systems and cold-region infrastructure.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"15 1","pages":""},"PeriodicalIF":8.3000,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Materials & Interfaces","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1021/acsami.5c03999","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The integration of superhydrophobicity and photothermal conversion offers transformative potential for addressing ice accretion challenges in outdoor infrastructure. However, current technologies are constrained by fluorinated chemical dependencies, complex manufacturing workflows, and limited substrate adaptability. Herein, we present a fluorochemical-free, eco-friendly, scalable coating system through a one-step spray deposition of antimony selenide (Sb2Se3), stearic acid (STA), and poly(methyl methacrylate) (PMMA). The synergistic incorporation of Sb2Se3 and STA creates a micro/nano structure with enhanced surface roughness (Ra = 189.937 nm) and low surface energy, achieving exceptional liquid repellency (water contact angle: 165°, sliding angle: 3°). The optimized Sb2Se3/STA/PMMA (Sb2Se3-SP) composite demonstrates remarkable substrate versatility, adhering robustly to diverse surfaces (metals, glass, paper, and wood) without requiring pretreatment. Notably, the Sb2Se3-SP coating exhibits a 4.67-fold extension in delayed ice freezing time (280 s at -20 °C) compared to that of uncoated substrate (60 s at -20 °C). Furthermore, the intrinsic photothermal conversion capability of Sb2Se3 enables rapid surface heating, rising to 80.0 °C in 180 s under 1-sun illumination (0.14 W/cm2), facilitating autonomous ice melting without external energy supply. Besides, the Sb2Se3-SP coating exhibits outstanding mechanical durability and self-cleaning property. This scalable, eco-conscious fabrication approach bridges the gap between laboratory innovation and industrial deployment, offering a sustainable pathway for energy-efficient anti-icing solutions in aviation power systems and cold-region infrastructure.
期刊介绍:
ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.