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Issue 42, 2016
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Hierarchical ordered macro/mesoporous titania with a highly interconnected porous structure for efficient photocatalysis

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Abstract

In this study, a 3-dimensional interconnected hierarchical ordered macro/mesoporous titania (HOPT) with thin walls, crystalline framework, large cavities (∼420 nm), uniform mesopores (3.7 nm) and high surface area (177 m2 g−1) was synthesized through a facile bi-template interface-directed deposition method using poly(propylene oxide)-block-poly(ethylene oxide)-block-poly(propylene oxide) (Pluronic P123) triblock polymer as a soft template and structure directing agent, titanium isopropoxide (TIPO) as a titania source and 3-dimensional ordered macroporous carbon (3DOMC) as the hard template and the nanoreactor. This was followed with a two-step thermal treatment in nitrogen and air. Under simulated sunlight irradiation at room temperature, the HOPT shows an ultrahigh photocatalytic activity for the degradation of Rhodamine B (RhB) with a fast reaction rate that is three times higher than commercial titania nanoparticles (P25).

Graphical abstract: Hierarchical ordered macro/mesoporous titania with a highly interconnected porous structure for efficient photocatalysis

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Publication details

The article was received on 10 Aug 2016, accepted on 16 Sep 2016 and first published on 16 Sep 2016


Article type: Paper
DOI: 10.1039/C6TA06849A
Citation: J. Mater. Chem. A, 2016,4, 16446-16453
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    Hierarchical ordered macro/mesoporous titania with a highly interconnected porous structure for efficient photocatalysis

    T. Zhao, Y. Ren, J. Yang, L. Wang, W. Jiang, A. A. Elzatahry, A. Alghamdi, Y. Deng, D. Zhao and W. Luo, J. Mater. Chem. A, 2016, 4, 16446
    DOI: 10.1039/C6TA06849A

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