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Hierarchically Porous TiO2 Photocatalyst Prepared by Additive Manufacturing and Dealloying for Highly Efficient Photocatalytic Degradation of Tetracycline
https://orcid.org/0000-0003-1917-6367
Hierarchically porous photocatalysts exhibit superior light-harvesting capacity and enhanced photocatalytic activity. In this work, a facile method by combining additive manufacturing (AM) and dealloying was employed to prepare a hierarchically porous photocatalyst, namely, nanoporous-TiO2-encapsulating macroporous-double-gyroid-structure photocatalyst (TiO2@DGS). It was found that TiO2@DGS possessed deterministic macropores and interconnected nanopores, which offered efficient mass transfer channels and abundant active sites, respectively. Thus, TiO2@DGS showed excellent photocatalytic capability under ultraviolet–visible (UV–vis) light irradiation and achieved a tetracycline degradation efficiency of over 90% within 60 min (photocatalytic rate constant k = 4.0 × 10–2 min–1). Furthermore, TiO2@DGS exhibited excellent durability and reusability due to its stable three-dimensional structures. This work not only exemplifies the high performance of the prepared TiO2@DGS for environmental remediation but also provides an innovative approach to introduce tailored macrostructures into hierarchically porous photocatalysts through the incorporation of AM and dealloying.
A hierarchically porous TiO2 photocatalyst prepared by combining additive manufacturing and dealloying shows excellent photocatalysis for organic contamination degradation.
Hierarchically Porous TiO2 Photocatalyst Prepared by Additive Manufacturing and Dealloying for Highly Efficient Photocatalytic Degradation of Tetracycline
https://orcid.org/0000-0003-1917-6367
Hierarchically porous photocatalysts exhibit superior light-harvesting capacity and enhanced photocatalytic activity. In this work, a facile method by combining additive manufacturing (AM) and dealloying was employed to prepare a hierarchically porous photocatalyst, namely, nanoporous-TiO2-encapsulating macroporous-double-gyroid-structure photocatalyst (TiO2@DGS). It was found that TiO2@DGS possessed deterministic macropores and interconnected nanopores, which offered efficient mass transfer channels and abundant active sites, respectively. Thus, TiO2@DGS showed excellent photocatalytic capability under ultraviolet–visible (UV–vis) light irradiation and achieved a tetracycline degradation efficiency of over 90% within 60 min (photocatalytic rate constant k = 4.0 × 10–2 min–1). Furthermore, TiO2@DGS exhibited excellent durability and reusability due to its stable three-dimensional structures. This work not only exemplifies the high performance of the prepared TiO2@DGS for environmental remediation but also provides an innovative approach to introduce tailored macrostructures into hierarchically porous photocatalysts through the incorporation of AM and dealloying.
A hierarchically porous TiO2 photocatalyst prepared by combining additive manufacturing and dealloying shows excellent photocatalysis for organic contamination degradation.
Hierarchically Porous TiO2 Photocatalyst Prepared by Additive Manufacturing and Dealloying for Highly Efficient Photocatalytic Degradation of Tetracycline
https://orcid.org/0000-0003-1917-6367
Hierarchically porous photocatalysts exhibit superior light-harvesting capacity and enhanced photocatalytic activity. In this work, a facile method by combining additive manufacturing (AM) and dealloying was employed to prepare a hierarchically porous photocatalyst, namely, nanoporous-TiO2-encapsulating macroporous-double-gyroid-structure photocatalyst (TiO2@DGS). It was found that TiO2@DGS possessed deterministic macropores and interconnected nanopores, which offered efficient mass transfer channels and abundant active sites, respectively. Thus, TiO2@DGS showed excellent photocatalytic capability under ultraviolet–visible (UV–vis) light irradiation and achieved a tetracycline degradation efficiency of over 90% within 60 min (photocatalytic rate constant k = 4.0 × 10–2 min–1). Furthermore, TiO2@DGS exhibited excellent durability and reusability due to its stable three-dimensional structures. This work not only exemplifies the high performance of the prepared TiO2@DGS for environmental remediation but also provides an innovative approach to introduce tailored macrostructures into hierarchically porous photocatalysts through the incorporation of AM and dealloying.
A hierarchically porous TiO2 photocatalyst prepared by combining additive manufacturing and dealloying shows excellent photocatalysis for organic contamination degradation.
Hierarchically Porous TiO2 Photocatalyst Prepared by Additive Manufacturing and Dealloying for Highly Efficient Photocatalytic Degradation of Tetracycline
Wei, Yu (author) / Chen, Meng (author) / Guo, Sheng (author) / Li, Yao (author) / Zhang, Zhenyu (author) / Xie, Yin (author) / Cai, Chao (author) / Wei, Qingsong (author)
ACS ES&T Water ; 4 ; 1590-1600
2024-04-12
Article (Journal)
Electronic Resource
English
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