Title: | Proof of concept for CUK family metal-organic frameworks as environmentally-friendly adsorbents for benzene vapor |
Author(s): | Anand B; Szulejko JE; Kim KH; Younis SA; |
Address: | "Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, Republic of Korea. Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, Republic of Korea. Electronic address: kkim61@hanyang.ac.kr. Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, Republic of Korea; Analysis and Evaluation Department, Egyptian Petroleum Research Institute, Nasr City, Cairo, 11727, Egypt" |
DOI: | 10.1016/j.envpol.2021.117491 |
ISSN/ISBN: | 1873-6424 (Electronic) 0269-7491 (Linking) |
Abstract: | "The utility of metal-organic frameworks (MOFs) such as the CUK family (CUK - Cambridge University-KRICT) has been explored intensively for adsorption/separation of airborne volatile organic compounds (VOCs). In this article, three M-CUK analogs (M = Mg, Co, or Ni) were synthesized hydrothermally under similar conditions to assess the effects of their isostructural properties and metal centers on adsorption of benzene vapor (0.05-1 Pa). A list of performance metrics (e.g., breakthrough volume (BTV) and partition coefficient (PC)) were used to assess the role of the metal type (in M-CUK-1s) in the adsorption of VOCs. Specifically, Co-CUK-1 (average pore size of 8.98 nm) showed 2-3 times greater performance (e.g., in terms of 10% BTV (2012 L atm g(-1)) and PC (6 mol kg(-1) Pa(-1))) over other analogs when exposed up to 0.05 Pa benzene vapor. The superiority of mesoporous Co-CUK-1 (e.g., enhanced adsorption diffusion mechanism through favorable metal-pi and pi- pi interactions) can be attributed to the presence of cobalt metal centers (e.g., in reference to Mg- or Ni-CUK-1)" |
Keywords: | Adsorption Benzene Gases Humans *Metal-Organic Frameworks *Volatile Organic Compounds Benzene adsorption Breakthrough analysis CUK coordination framework Kinetic studies Partition coefficient Performance comparison; |
Notes: | "MedlineAnand, Bhaskar Szulejko, Jan E Kim, Ki-Hyun Younis, Sherif A eng England 2021/08/13 Environ Pollut. 2021 Sep 15; 285:117491. doi: 10.1016/j.envpol.2021.117491. Epub 2021 Jun 2" |