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Issue 5, 2016
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CNTs threaded (001) exposed TiO2 with high activity in photocatalytic NO oxidation

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Abstract

A microwave-ionothermal strategy was developed for in situ synthesis of CNTs threaded TiO2 single crystal with a tunable percentage of surface exposed (001) active facets. The CNTs were used as microwave antennas to create local “super hot” dots to induce Ti3+ adsorption and hydrolysis, thereby leading to a good assembly of (001) facets exposed single crystalline TiO2 threaded by the CNTs in the presence of Hmim[BF4] ionic liquid. Due to the high percentage of the active (001) facets of single crystal TiO2 and the direct electron transfer property of the CNTs, the as-prepared CNTs–TiO2 composite showed a photocatalytic NO removal ratio of up to 76.8% under UV irradiation. In addition, with self-doped Ti3+, the CNTs–TiO2 composite also exhibited an enhanced activity under irradiation with either solar lights or visible lights, showing good potential in practical applications for environmental remediation.

Graphical abstract: CNTs threaded (001) exposed TiO2 with high activity in photocatalytic NO oxidation

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Publication details

The article was received on 30 Oct 2015, accepted on 24 Dec 2015 and first published on 25 Dec 2015


Article type: Paper
DOI: 10.1039/C5NR07589K
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Nanoscale, 2016,8, 2899-2907

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    CNTs threaded (001) exposed TiO2 with high activity in photocatalytic NO oxidation

    S. Xiao, W. Zhu, P. Liu, F. Liu, W. Dai, D. Zhang, W. Chen and H. Li, Nanoscale, 2016, 8, 2899
    DOI: 10.1039/C5NR07589K

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