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Highly Efficient Degradation of Tobacco Specific N‐Nitrosamines by TiO 2 Mesocrystals with Robust and Tailored Microporous Structure
Author(s) -
Deng Qixin,
Hong Zhensheng,
Liu Huiming,
Huang Chaozhang,
Xu Hanchun,
Lan Hongqiao,
Xie Wei,
Xie Jianping,
Wei Mingdeng
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201801736
Subject(s) - microporous material , degradation (telecommunications) , anatase , materials science , chemical engineering , photocatalysis , chemistry , organic chemistry , catalysis , composite material , computer science , telecommunications , engineering
It is essential to control tobacco specific N‐nitrosamines (TSNAs) pollution for the protection of public health, which were identified as the most abundant carcinogens in tobacco and tobacco smoke. Herein, we provide microporous TiO 2 mesocrystals as a new material for the remove of TSNAs with high degradation efficiency. The anatase TiO 2 mesocrystals with tunable microporous structure were synthesized by a facile method under the acid solution. The TiO 2 mesocrystals were firstly used to the remove of TSNAs through photocatalytic degradation. It's exciting that TSNAs of tobacco extraction solution can be almost entirely reduced (up to 97%) by anatase TiO 2 mesocrystals after 30 mins through photocatalytic degradation. Moreover, it's found that the microporous size of mesocrystals play a key role on the degradation capability. The TiO 2 mesocrystals with microporous size comparable to the size of TSNAs molecule exhibit the best degradation performance. This finding offers a robust microporous material and efficient method for removing the carcinogen like TSNAs as well as other pollutants in environment.