Abatement of gaseous volatile organic compounds: A material perspective
Abatement of gaseous volatile organic compounds: A material perspective
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DOI：
10.1016/j.cattod.2019.06.017
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发表时间：
2020-06-15
期刊：
影响因子：
5.3
通讯作者：
Rezaei, Fateme
中科院分区：
文献类型：
--
作者：
Gelles, Teresa;Krishnamurthy, Anirudh;Rezaei, Fateme
挥发性有机化合物（VOC）是一类具有低蒸气压的有机液体化合物，这使得它们能够在环境条件下蒸发。挥发性有机物具有毒性、致癌性和致突变性，对人类健康和生态环境有着深远的影响。许多VOC即使在非常低的浓度（ppm）下也会对健康造成破坏性影响，因此控制这些有机化合物对于确保良好的空气质量至关重要。户外环境中，特别是城市地区，挥发性有机化合物的水平不断上升，引发了对减少挥发性有机化合物的大量研究。这已经发展成无数的污染控制技术，包括热催化氧化、光催化氧化、非热等离子体、吸附和混合吸附-氧化过程。为了使基于催化和吸附的过程成为一种有前途的VOC减排方法，开发高效材料是关键的一步。本文综述了近年来催化与分离领域的研究进展，重点介绍了催化材料，包括贵金属催化剂、过渡金属氧化物催化剂、钙钛矿、二氧化钛和氧化铈基催化剂以及双功能吸附剂/催化剂。各种捕获材料，如活性炭，沸石，和金属有机框架（MOFs），也讨论了为目的提供洞察吸附剂夹杂物在杂化分离破坏过程中的功效。
Volatile organic compounds (VOCs) are a class of organic liquid compounds with low vapor pressures, which enables them to vaporize at ambient conditions. VOCs are largely toxic, carcinogenic, and mutagenic, and have profound adverse effects on human health and the ecological environment. Many VOCs cause ruinous health effects even at very low concentrations (ppm) and therefore control of these organic compounds is essential for ensuring good air quality. Rising levels of VOCs in the outdoor environment, particularly in urban areas, has sparked considerable research into the abatement of VOCs. This has evolved into a myriad of pollution control technologies, including thermal catalytic oxidation, photocatalytic oxidation, non-thermal plasma, adsorption, and hybrid adsorption-oxidation processes. In order for catalytic and adsorption-based process to emerge as a promising method for VOC abatement, development of efficient materials is a crucial step. This review discusses recent developments made in the fields of catalysis and separation, with an emphasis on catalytic materials, including noble-metal catalysts, transition metal-oxide catalysts, perovskites, titania and ceria based catalysts, and dual-functioning adsorbent/catalysts. Various capture materials, such as activated carbons, zeolites, and metal organic frameworks (MOFs), are also discussed for the purpose of providing insight into the efficacy of adsorbent inclusion in hybridized separation-destruction processes.