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Recycled Concrete Powder Supported Nano-TiO2 Composites: Efficient Utilization of RCP and Excellent Photocatalytic Performance
https://orcid.org/http://orcid.org/0000-0002-5407-6452
In this paper, in order to promote the application of recycled concrete powder (RCP), RCP was used to synthesize RCP/TiO2 composites of high value. The microstructure of RCP/TiO2 composites were investigated in detail, and photocatalytic degradation of RhB under UV-light was carried out to assess the photocatalytic performance of RCP/TiO2 composites. The result showed that nano-TiO2 was evenly dispersed on the surface of RCP and firmly combined with RCP by chemical bonds. The RCP/TiO2 composite with only 40% addition of TiO2 exhibited the same photocatalytic performance as equal mass of pure TiO2 within 60 min. There was a threshold RhB concentration for per RCP/TiO2 composite under which an excellent photocatalytic performance can be achieved. RCP/TiO2 composites showed high stability in cyclic tests. The added value of RCP is enhanced by the form of RCP/TiO2 composites. Our work provides a feasible way to promote the upcycling of RCP by preparing value-added products.
Recycled Concrete Powder Supported Nano-TiO2 Composites: Efficient Utilization of RCP and Excellent Photocatalytic Performance
https://orcid.org/http://orcid.org/0000-0002-5407-6452
In this paper, in order to promote the application of recycled concrete powder (RCP), RCP was used to synthesize RCP/TiO2 composites of high value. The microstructure of RCP/TiO2 composites were investigated in detail, and photocatalytic degradation of RhB under UV-light was carried out to assess the photocatalytic performance of RCP/TiO2 composites. The result showed that nano-TiO2 was evenly dispersed on the surface of RCP and firmly combined with RCP by chemical bonds. The RCP/TiO2 composite with only 40% addition of TiO2 exhibited the same photocatalytic performance as equal mass of pure TiO2 within 60 min. There was a threshold RhB concentration for per RCP/TiO2 composite under which an excellent photocatalytic performance can be achieved. RCP/TiO2 composites showed high stability in cyclic tests. The added value of RCP is enhanced by the form of RCP/TiO2 composites. Our work provides a feasible way to promote the upcycling of RCP by preparing value-added products.
Recycled Concrete Powder Supported Nano-TiO2 Composites: Efficient Utilization of RCP and Excellent Photocatalytic Performance
https://orcid.org/http://orcid.org/0000-0002-5407-6452
In this paper, in order to promote the application of recycled concrete powder (RCP), RCP was used to synthesize RCP/TiO2 composites of high value. The microstructure of RCP/TiO2 composites were investigated in detail, and photocatalytic degradation of RhB under UV-light was carried out to assess the photocatalytic performance of RCP/TiO2 composites. The result showed that nano-TiO2 was evenly dispersed on the surface of RCP and firmly combined with RCP by chemical bonds. The RCP/TiO2 composite with only 40% addition of TiO2 exhibited the same photocatalytic performance as equal mass of pure TiO2 within 60 min. There was a threshold RhB concentration for per RCP/TiO2 composite under which an excellent photocatalytic performance can be achieved. RCP/TiO2 composites showed high stability in cyclic tests. The added value of RCP is enhanced by the form of RCP/TiO2 composites. Our work provides a feasible way to promote the upcycling of RCP by preparing value-added products.
Recycled Concrete Powder Supported Nano-TiO2 Composites: Efficient Utilization of RCP and Excellent Photocatalytic Performance
Lecture Notes in Civil Engineering
Guo, Wei (editor) / Qian, Kai (editor) / Liao, Gang (author) / Yao, Wu (author)
International Conference on Green Building, Civil Engineering and Smart City ; 2022 ; Guilin, China
2022-09-08
8 pages
Article/Chapter (Book)
Electronic Resource
English
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