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Porous g-C3N4 with nitrogen defects and cyano groups for excellent photocatalytic nitrogen fixation without co-catalysts
Abstract
The porous g-C3N4 with nitrogen defects and cyano groups (NC-g-C3N4) is prepared via an alkali-assisted heat treatment of urea. Alkali can break hydrogen bonds, which accelerate thermal polymerization of urea and formation of nitrogen defects/cyano groups. The presence of nitrogen defects extends the absorption of visible light to longer wavelengths region. The cyano groups can trap g-C3N4's photoinduced electrons and therefore suppress charge recombination. The formation of porous structure increases the surface area and exposes more active sites. As a consequence, compared to pure g-C3N4, NC-g-C3N4 shows boosted visible photocatalytic nitrogen fixation activity (1.59 mmol h-1 g-1) without co-catalysts.
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Cites
Tong, Z., Yang, D., Shi, J., Nan, Y., Sun, Y., & Jiang, Z. (2015) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.5b09503 · Cited by 431
Cited by
Zhang, X., Ma, P., Wang, C., Gan, L., Chen, X., Zhang, P., Wang, Y., Li, H., Wang, L., Zhou, X., et al. (2022) · Energy & Environmental Science · doi:10.1039/d1ee02369a · Cited by 909
Sun, B., Liang, Z., Qian, Y., Xu, X., Han, Y., & Tian, J. (2020) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.9b20767 · Cited by 284
Self-citationZafar, Z., Yi, S., Li, J., Li, C., Zhu, Y., Zada, A., Yao, W., Liu, Z., & Yue, X. (2022) · ENERGY & ENVIRONMENTAL MATERIALS · doi:10.1002/eem2.12171 · Cited by 284
Metadata
- Authors
- Xue, Y., Guo, Y., Liang, Z., Cui, H., & Tian, J.
- Venue
- Journal of Colloid and Interface Science
- Publisher
- Elsevier BV
- Published
- 2019-11
- Volume
- 556
- Pages
- 206-213
- ISSN
- 0021-9797 (ISSN-L)
- OpenAlex
- W2969307333
- Cited by
- 179
- References
- 1
- FWCI
- 4.17
- Type
- journal article
- Language
- en
- Open access
- closed
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- Xue, Y., Guo, Y., Liang, Z., Cui, H., & Tian, J. (2019). Porous g-C3N4 with nitrogen defects and cyano groups for excellent photocatalytic nitrogen fixation without co-catalysts. Journal of Colloid and Interface Science. https://doi.org/10.1016/j.jcis.2019.08.067
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