School of Environmental Engineering, Xuzhou University of Technology, Xuzhou, 221000, PR China; Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Shanghai, 200433, PR China; Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL, 32611, USA.
Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL, 32611, USA.
J Hazard Mater. 2017 Sep 15;338:102-123. doi: 10.1016/j.jhazmat.2017.05.013. Epub 2017 May 12.
Volatile organic compounds (VOCs) severely threaten human health and the ecological environment because most of them are toxic, mutagenic, and carcinogenic. The persistent increase of VOCs together with the stringent regulations make the reduction of VOC emissions more imperative. Up to now, numerous VOC treatment technologies have emerged, such as incineration, condensation, biological degradation, absorption, adsorption, and catalysis oxidation et al. Among them, the adsorption technology has been recognized as an efficient and economical control strategy because it has the potential to recover and reuse both adsorbent and adsorbate. Due to their large specific surface area, rich porous structure, and high adsorption capacity, carbonaceous adsorbents are widely used in gas purification, especially with respect to VOC treatment and recovery. This review discusses recent research developments of VOC adsorption onto a variety of engineered carbonaceous adsorbents, including activated carbon, biochar, activated carbon fiber, carbon nanotube, graphene and its derivatives, carbon-silica composites, ordered mesoporous carbon, etc. The key factors influence the VOC adsorption are analyzed with focuses on the physiochemical characters of adsorbents, properties of adsorbates as well as the adsorption conditions. In addition, the sources, health effect, and abatement methods of VOCs are also described.
挥发性有机化合物（VOCs）因其大多数具有毒性、致突变性和致癌性而严重威胁着人类健康和生态环境。VOCs 的持续增加以及严格的法规使得减少 VOC 排放变得更加迫切。到目前为止，已经出现了许多 VOC 处理技术，例如焚烧、冷凝、生物降解、吸收、吸附和催化氧化等。其中，吸附技术已被认为是一种高效、经济的控制策略，因为它有可能回收和再利用吸附剂和吸附物。由于具有较大的比表面积、丰富的多孔结构和较高的吸附能力，碳质吸附剂被广泛应用于气体净化，特别是在 VOC 处理和回收方面。本文综述了近年来各种工程碳质吸附剂（包括活性炭、生物炭、活性炭纤维、碳纳米管、石墨烯及其衍生物、碳-硅复合材料、有序介孔碳等）对 VOC 的吸附研究进展。分析了影响 VOC 吸附的关键因素，重点关注了吸附剂的物理化学性质、吸附质的性质以及吸附条件。此外，还描述了 VOCs 的来源、健康影响和减排方法。
