Journal
DALTON TRANSACTIONS
Volume 46, Issue 3, Pages 678-684Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6dt04261a
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Funding
- National Natural Science Foundation of China (NSFC) [21571167, 51502282]
- Chinese Academy of Sciences
- Fundamental Research Funds for the Central Universities [WK2060190053]
- Anhui Province Natural Science Foundation [1608085MB28]
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We present a novel strategy to improve the stability and optical absorption of polyoxotitanates (POTs) via concurrently fully carboxylate-coordinating and hetero-metal-doping, and illustrate the strategy by an indium doped hetero-polyoxotitanate (h-POT) of a [Ti12In6O18(OOCC6H5)(30)] (POTi12In6) nanocluster, which possesses ultrahigh stability in both acid and base aqueous solutions. The nanocluster structurally features a core-shell double wheel structure and a polar cavity. Both experiments and theoretical calculations confirm the semiconductive properties of the nanocluster. Under visible irradiation the POTi12In6 nanocluster can produce pronounced photocurrent, and reactive oxygen species for pollutant degradation. Without using any cocatalyst, POTi12In6 exhibits important visible-light-driven photocatalytic activity for H-2 evolution in an aqueous system. This work could render a polyoxotitanate as a new type of visible-photoactive photocatalyst.
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