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Near-infrared light controlled photocatalytic activity of carbon quantum dots for highly selective oxidation reaction
Abstract
Selective oxidation of alcohols is a fundamental and significant transformation for the large-scale production of fine chemicals, UV and visible light driven photocatalytic systems for alcohol oxidation have been developed, however, the long wavelength near infrared (NIR) and infrared (IR) light have not yet fully utilized by the present photocatalytic systems. Herein, we reported carbon quantum dots (CQDs) can function as an effective near infrared (NIR) light driven photocatalyst for the selective oxidation of benzyl alcohol to benzaldehyde. Based on the NIR light driven photo-induced electron transfer property and its photocatalytic activity for H2O2 decomposition, this metal-free catalyst could realize the transformation from benzyl alcohol to benzaldehyde with high selectivity (100%) and conversion (92%) under NIR light irradiation. HO˙ is the main active oxygen specie in benzyl alcohol selective oxidative reaction confirmed by terephthalic acid photoluminescence probing assay (TA-PL), selecting toluene as the substrate. Such metal-free photocatalytic system also selectively converts other alcohol substrates to their corresponding aldehydes with high conversion, demonstrating a potential application of accessing traditional alcohol oxidation chemistry.
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Cites
Environmental applications of semiconductor photocatalysis
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Carbon quantum dots and their applications
Lim, S. Y., Shen, W., & Gao, Z. (2015) · Chemical Society Reviews · doi:10.1039/c4cs00269e · Cited by 4,976
Xie, Z., Feng, Y., Wang, F., Chen, D., Zhang, Q., Zeng, Y., Lv, W., & Liu, G. (2018) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2018.02.011 · Cited by 853
One‐dimensional TiO2 Nanotube Photocatalysts for Solar Water Splitting
Ge, M., Li, Q., Cao, C., Huang, J., Li, S., Zhang, S., Chen, Z., Zhang, K., Al‐Deyab, S. S., & Lai, Y. (2017) · Advanced Science · doi:10.1002/advs.201600152 · Cited by 555
Structure, Synthesis, and Applications of TiO2 Nanobelts
Zhao, Z., Tian, J., Sang, Y., Cabot, A., & Liu, H. (2015) · Advanced Materials · doi:10.1002/adma.201405589 · Cited by 342
Kong, X. Y., Choo, Y. Y., Chai, S.-P., Soh, A. K., & Mohamed, A. R. (2016) · Chemical Communications · doi:10.1039/c6cc07750a · Cited by 292
Metadata
- Authors
- Li, H., Liu, R., Lian, S., Liu, Y., Huang, H., & Kang, Z.
- Venue
- Nanoscale
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2013
- Volume
- 5
- Issue
- 8
- Pages
- 3289
- ISSN
- 2040-3364 (ISSN-L)
- 2040-3372
- OpenAlex
- W2056482366
- Cited by
- 331
- References
- 1
- FWCI
- 12.88
- Type
- journal article
- Language
- en
- Open access
- closed
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- Li, H., Liu, R., Lian, S., Liu, Y., Huang, H., & Kang, Z. (2013). Near-infrared light controlled photocatalytic activity of carbon quantum dots for highly selective oxidation reaction. Nanoscale. https://doi.org/10.1039/c3nr00092c
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