期刊
NANOSCALE
卷 8, 期 5, 页码 2899-2907出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nr07589k
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资金
- NSFC [21477079, 21207090, 21261140333, 21237003]
- Shanghai Government [13YZ054, 14ZR1430900, 15QA1403300]
- PCSIRT [IRT1269]
- doctoral program of higher education [20123127120009]
- SHNU [S30406]
- Singapore MOE Tier II grant [R143-000-542-112]
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.
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