Mirasoli Mara, Gotti Roberto, Di Fusco Massimo, Basaglia Giulia, Fiori Jessica, Roda Aldo
Department of Chemistry "Giacomo Ciamician", University of Bologna, via Selmi 2, 40126 Bologna, Italy; Interdepartmental Center for Industrial Research-Advanced Applications in Mechanical Engineering and Materials Technology (CIRI-MAM), University of Bologna, Bologna, Italy.
Interdepartmental Center for Industrial Research-Advanced Applications in Mechanical Engineering and Materials Technology (CIRI-MAM), University of Bologna, Bologna, Italy; Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy.
J Pharm Biomed Anal. 2017 Sep 10;144:236-241. doi: 10.1016/j.jpba.2017.03.008. Epub 2017 Mar 9.
Indoor air pollutants and odorants may have psychological and physical impact on exposed individuals and the unpleasant room air is considered as one of the factors associated with sick building syndrome comprising general symptoms such as headache and lethargy. Approaches for improving the quality of indoor air are thus important as support for human health and well-being. Photo-oxidation catalyzed by titanium dioxide (TiO), is one of the methods used for elimination of volatile organic compounds, which are the cause of odor nuisance in indoor and outdoor air. In the present investigation, the efficacy of an experimental anti-odor air freshener based on TiO nanoparticles was estimated by testing its ability in removing from a small air chamber (200mL) the odor of triethylamine solutions (50μL at concentrations between 0.700 to 700mM), used as a model volatile molecule for simulating fish-like unpleasant indoor environment. The evaluation was performed by electronic nose which provided a holistic and objective data on the efficacy of the product, demonstrating that the effects of triethylamine even at the highest tested concentrations can be completely removed by application of 3.0g of the product at 25% TiO nanoparticles concentration. The obtained results were confirmed by gaschromatography-mass spectrometry (GC-MS) analysis addressed to the quantitative determination of residual triethylamine in the environment after treatment by the anti-odor product.
室内空气污染物和气味剂可能会对接触者产生心理和生理影响，而令人不适的室内空气被认为是与病态建筑综合症相关的因素之一，病态建筑综合症包括头痛和无精打采等一般症状。因此，改善室内空气质量的方法对于支持人类健康和福祉非常重要。由二氧化钛（TiO）催化的光氧化是用于消除挥发性有机化合物的方法之一，挥发性有机化合物是室内和室外空气中产生气味 nuisance 的原因。在本研究中，通过测试一种基于TiO纳米颗粒的实验性抗臭空气清新剂从小气室（200mL）中去除用作模拟鱼腥味室内环境的挥发性分子模型的三乙胺溶液（50μL，浓度在0.700至700mM之间）气味的能力，来评估其功效。通过电子鼻进行评估，电子鼻提供了关于该产品功效的全面和客观数据，表明即使在最高测试浓度下，三乙胺的影响也可以通过应用3.0g浓度为25% TiO纳米颗粒的产品完全消除。通过气相色谱 - 质谱（GC - MS）分析对使用抗臭产品处理后环境中残留三乙胺的定量测定，证实了所得结果。
