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Article: Super-Assembled Multilayered Mesoporous TiO2 Nanorockets for Light-Powered Space-Confined Microfluidic Catalysis

TitleSuper-Assembled Multilayered Mesoporous TiO2 Nanorockets for Light-Powered Space-Confined Microfluidic Catalysis
Authors
Keywordscatalysis
mesoporous
multilayer
nanomotor
superassembly
Issue Date25-Apr-2023
PublisherAmerican Chemical Society
Citation
ACS Applied Materials and Interfaces, 2024, v. 16, n. 18, p. 23484-23496 How to Cite?
AbstractIn the field of sustainable chemistry, it is still a significant challenge to realize efficient light-powered space-confined catalysis and propulsion due to the limited solar absorption efficiency and the low mass and heat transfer efficiency. Here, novel semiconductor TiO2 nanorockets with asymmetric, hollow, mesoporous, and double-layer structures are successfully constructed through a facile interfacial superassembly strategy. The high concentration of defects and unique topological features improve light scattering and reduce the distance for charge migration and directed charge separation, resulting in enhanced light harvesting in the confined nanospace and resulting in enhanced catalysis and self-propulsion. The movement velocity of double-layered nanorockets can reach up to 10.5 μm s-1 under visible light, which is approximately 57 and 119% higher than that of asymmetric single-layered TiO2 and isotropic hollow TiO2 nanospheres, respectively. In addition, the double-layered nanorockets improve the degradation rate of the common pollutant methylene blue under sustainable visible light with a 247% rise of first-order rate constant compared to isotropic hollow TiO2 nanospheres. Furthermore, FEA simulations reveal and confirm the double-layered confined-space enhanced catalysis and self-propulsion mechanism.
Persistent Identifierhttp://hdl.handle.net/10722/347765
ISSN
2023 Impact Factor: 8.3
2023 SCImago Journal Rankings: 2.058

 

DC FieldValueLanguage
dc.contributor.authorZeng, Jie-
dc.contributor.authorXie, Lei-
dc.contributor.authorLiu, Tianyi-
dc.contributor.authorHe, Yanjun-
dc.contributor.authorLiu, Weiyan-
dc.contributor.authorZhang, Qing-
dc.contributor.authorLi, Junyan-
dc.contributor.authorLi, Xiaofeng-
dc.contributor.authorQiu, Beilei-
dc.contributor.authorZhou, Shan-
dc.contributor.authorLiang, Qirui-
dc.contributor.authorWang, Xudong-
dc.contributor.authorLiang, Kang-
dc.contributor.authorTang, Jinyao-
dc.contributor.authorLiu, Jian-
dc.contributor.authorJiang, Lei-
dc.contributor.authorHuang, Gang-
dc.contributor.authorKong, Biao-
dc.date.accessioned2024-09-28T00:30:25Z-
dc.date.available2024-09-28T00:30:25Z-
dc.date.issued2023-04-25-
dc.identifier.citationACS Applied Materials and Interfaces, 2024, v. 16, n. 18, p. 23484-23496-
dc.identifier.issn1944-8244-
dc.identifier.urihttp://hdl.handle.net/10722/347765-
dc.description.abstractIn the field of sustainable chemistry, it is still a significant challenge to realize efficient light-powered space-confined catalysis and propulsion due to the limited solar absorption efficiency and the low mass and heat transfer efficiency. Here, novel semiconductor TiO2 nanorockets with asymmetric, hollow, mesoporous, and double-layer structures are successfully constructed through a facile interfacial superassembly strategy. The high concentration of defects and unique topological features improve light scattering and reduce the distance for charge migration and directed charge separation, resulting in enhanced light harvesting in the confined nanospace and resulting in enhanced catalysis and self-propulsion. The movement velocity of double-layered nanorockets can reach up to 10.5 μm s-1 under visible light, which is approximately 57 and 119% higher than that of asymmetric single-layered TiO2 and isotropic hollow TiO2 nanospheres, respectively. In addition, the double-layered nanorockets improve the degradation rate of the common pollutant methylene blue under sustainable visible light with a 247% rise of first-order rate constant compared to isotropic hollow TiO2 nanospheres. Furthermore, FEA simulations reveal and confirm the double-layered confined-space enhanced catalysis and self-propulsion mechanism.-
dc.languageeng-
dc.publisherAmerican Chemical Society-
dc.relation.ispartofACS Applied Materials and Interfaces-
dc.subjectcatalysis-
dc.subjectmesoporous-
dc.subjectmultilayer-
dc.subjectnanomotor-
dc.subjectsuperassembly-
dc.titleSuper-Assembled Multilayered Mesoporous TiO2 Nanorockets for Light-Powered Space-Confined Microfluidic Catalysis-
dc.typeArticle-
dc.identifier.doi10.1021/acsami.3c19302-
dc.identifier.scopuseid_2-s2.0-85192011713-
dc.identifier.volume16-
dc.identifier.issue18-
dc.identifier.spage23484-
dc.identifier.epage23496-
dc.identifier.eissn1944-8252-
dc.identifier.issnl1944-8244-

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