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Title: Unexpected intrinsic catalytic function of porous boron nitride nanorods for highly efficient peroxymonosulfate activation in water treatment
Authors: Bao, Yueping
Yan, Weili
Sun, Ping-Ping
Zhu, Justin Yeow Seow
Lua, Shun Kuang
Lee, Wen Jie
Liang, Yen Nan
Lim, Teik-Thye
Xu, Jason Zhichuan
Zhou, Kun
Hu, Xiao
Keywords: Engineering::Environmental engineering
Issue Date: 2022
Source: Bao, Y., Yan, W., Sun, P., Zhu, J. Y. S., Lua, S. K., Lee, W. J., Liang, Y. N., Lim, T., Xu, J. Z., Zhou, K. & Hu, X. (2022). Unexpected intrinsic catalytic function of porous boron nitride nanorods for highly efficient peroxymonosulfate activation in water treatment. ACS Applied Materials and Interfaces, 14(16), 18409-18419.
Journal: ACS Applied Materials and Interfaces 
Abstract: Porous boron nitride (BN) nanorods, which were synthesized via a one-stage pyrolysis, exhibited excellent catalytic performance for organics' degradation via peroxymonosulfate (PMS) activation. The origin of the unexpected catalytic function of porous BN nanorods was proposed, in which non-radical oxidation driven by the defects on porous BN dominated the sulfamethoxazole degradation via the generation of singlet oxygen (1O2). The adsorption energy between PMS and BN was calculated via density functional theory (DFT), and the PMS activation kinetics were further investigated using an electrochemical methodology. The evolution of 1O2 was verified by electron spin resonance (ESR) and chemical scavenging experiments. The observed non-radical oxidation presented a high robustness in different water matrices, combined with a series of much less toxic intermediates. The used BN was easily regenerated by heating in air, in which the B-O bond was fully recovered. These findings provide new insights for BN as a non-metal catalyst for organics' degradation via PMS activation, in both theoretical and practical prospects.
ISSN: 1944-8244
DOI: 10.1021/acsami.2c00755
Rights: © 2022 American Chemical Society. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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