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A Nanophotocatalyst of ZnO/CuS with Photothermal Effect, Superhydrophobicity and Self-Healing Function
Nano ( IF 1.2 ) Pub Date : 2023-06-23 , DOI: 10.1142/s1793292023500467
Xueqi Wang 1 , Jinkun Cheng 1 , Xudong Xiong 1 , Chao Xu 1 , Zhao Fan 1 , Yongqian Wang 1
Affiliation  

Photothermal-assisted photocatalysis is a novel catalytic technology that can not only utilize both light energy and light heat, but also simultaneously incorporate superhydrophobicity and self-healing ability into photocatalysts. It represents a significant advancement in efficient photocatalytic degradation of water pollution. Here, by incorporating the semiconductor photothermal agent CuS on the outer layer of ZnO nanoflowers, the deposited CuS layer exhibits an outstanding photothermal effect under near-infrared light irradiation, which can absorb infrared light and convert it into heat energy, enhancing the performance of the ZnO nanoflowers in situ. Meanwhile, a photothermal conversion surface material with self-healing superhydrophobicity is prepared by using a mixture of beeswax and polydimethylsiloxane. The broad light absorption ability and enhanced charge transfer accelerate the photocatalytic efficiency, in addition, the incorporation of superhydrophobicity enables resistance to corrosive liquid pollution and repairs its superhydrophobicity damage by beeswax migration to provide lasting protection. The degradation rate of MB is as high as 98% within 80 min. Finally, the mechanism of photothermal effect in photocatalysis and the mechanism of self-healing superhydrophobicity are proposed. This work innovatively integrates photothermal effect and self-healing superhydrophobic function into photocatalytic degradation of water pollution technology, which broadens the scope of improving photocatalytic performance and extends the photocatalyst operation life to a certain extent.



中文翻译:

具有光热效应、超疏水性和自修复功能的ZnO/CuS纳米光催化剂

光热辅助光催化是一种新型催化技术,不仅可以利用光能和光热,还可以同时将超疏水性和自修复能力融入光催化剂中。它代表了高效光催化降解水污染的重大进步。这里,通过在ZnO纳米花的外层掺入半导体光热剂CuS,沉积的CuS层在近红外光照射下表现出出色的光热效应,可以吸收红外光并将其转化为热能,从而增强了器件的性能。原位氧化锌纳米花。同时,采用蜂蜡和聚二甲基硅氧烷的混合物制备了具有自修复超疏水性的​​光热转换表面材料。广泛的光吸收能力和增强的电荷转移加速了光催化效率,此外,超疏水性的​​结合可以抵抗腐蚀性液体污染,并通过蜂蜡迁移修复其超疏水性损伤,提供持久的保护。80 min内MB的降解率高达98%。最后提出了光催化中的光热效应机理和自修复超疏水机理。该工作创新性地将光热效应和自修复超疏水功能融入到光催化降解水污染技术中,

更新日期:2023-06-23
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