Efficiently Capturing Tobacco Specific Nitrosamines with Hβ Zeolite in Solution

Publication date: Available online 1 November 2018Source: Journal of Hazardous MaterialsAuthor(s): Chun Ling Shi, Xiao Dan Sun, Yi Han Gao, Sai Jing Zheng, Shuo Hao Li, Jing Yang, Yang Zhong Wang, Jun-Wei Xiong, Yi Shen, Ying Wang, Jian Hua ZhuAbstractThe high-efficiency capture of Tobacco Specific Nitrosamines by Hβ zeolite in solution is reported for the first time, along with the adsorption of 4-methylnitrosamino-1-3-pyridyl-1-butanone in aqueous solution. Different from other zeolites such as NaZSM-5, the specific pore size of Hβ exerted a crucial function endowing the zeolite a higher removal of TSNA and selectivity of NNK. The adsorption thermodynamics of NNK by Hβ in aqueous adsorption was fitted to Temkin adsorption model with a linearly decreasing isosteric heat of adsorption. In addition, the adsorptive capacity of Hβ zeolite for NNK reached over 70 mg g-1, offering a powerful sorbent of TSNA to protect environment.Graphical Abstract
Source: Journal of Hazardous Materials - Category: Environmental Health Source Type: research