| Title: | Adsorptive removal of some Cl-VOC's as dangerous environmental pollutants using feather-like gamma-Al(2)O(3) derived from aluminium waste with life cycle analysis |
| Author(s): | Halawy SA; Osman AI; Mehta N; Abdelkader A; Vo DN; Rooney DW; |
| Address: | "Nanocomposite Catalysts Lab., Chemistry Department, Faculty of Science at Qena, South Valley University, Qena, 83523, Egypt. Electronic address: Samih.halawy11@gmail.com. Nanocomposite Catalysts Lab., Chemistry Department, Faculty of Science at Qena, South Valley University, Qena, 83523, Egypt; School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Belfast BT9 5AG, Northern Ireland, UK. Electronic address: aosmanahmed01@qub.ac.uk. School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Belfast BT9 5AG, Northern Ireland, UK; The Centre for Advanced Sustainable Energy, Queen's University Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, Northern Ireland, UK. Nanocomposite Catalysts Lab., Chemistry Department, Faculty of Science at Qena, South Valley University, Qena, 83523, Egypt. Institute of Environmental Sciences, Nguyen Tat Thanh University, Ho Chi Minh City, 755414, Viet Nam; College of Medical and Health Science, Asia University, Taichung, Taiwan. School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Belfast BT9 5AG, Northern Ireland, UK" |
| DOI: | 10.1016/j.chemosphere.2022.133795 |
| ISSN/ISBN: | 1879-1298 (Electronic) 0045-6535 (Linking) |
| Abstract: | "Herein, we designed a cost-effective preparation method of nanocomposite gamma-Al(2)O(3) derived from Al-waste. The produced material has a feather-like morphology, and its adsorption of some chlorinated volatile organic compounds (Cl-VOC's) such as benzyl chloride, chloroform and carbon tetrachloride (C(7)H(7)Cl, CHCl(3) and CCl(4)) was investigated due to their potential carcinogenic effect on humans. It showed a characteristic efficiency towards the adsorptive removal of these compounds over a long period, i.e., eight continuous weeks, at ambient temperature and atmospheric pressure. After 8-weeks, the adsorbed amounts of these compounds were determined as: 325.3 mg C(7)H(7)Cl, 247.6 mg CHCl(3) and 253.3 mg CCl(4) per g of gamma-Al(2)O(3,) respectively. CCl(4) was also found to be dissociatively adsorbed on the surface of gamma-Al(2)O(3), whereas CHCl(3) and C(7)H(7)Cl were found to be associatively adsorbed. The prepared gamma-Al(2)O(3) has a relatively high surface area (i.e., 192.2 m(2). g(-1)) and mesoporosity with different pore diameters in the range of 25-47 A. Furthermore, environmental impacts of the nanocomposite gamma-Al(2)O(3) preparation were evaluated using life cycle assessment. For prepartion of adsorbent utilising 1 kg of scrap aluminium wire, it was observed that potential energy demand was 288 MJ, climate change potential was 19 kg CO(2) equivalent, acidification potential was 0.115 kg SO(2) equivalent and eutrophication potential was 0.018 kg PO(4)(3-) equivalent" |
| Keywords: | Adsorption Aluminum Aluminum Oxide Animals *Environmental Pollutants Feathers Humans Life Cycle Stages *Volatile Organic Compounds Circular economy Life cycle assessment Temperature programmed desorption Volatile organic compounds gamma-Al(2)O(3); |
| Notes: | "MedlineHalawy, Samih A Osman, Ahmed I Mehta, Neha Abdelkader, Adel Vo, Dai-Viet N Rooney, David W eng England 2022/02/07 Chemosphere. 2022 May; 295:133795. doi: 10.1016/j.chemosphere.2022.133795. Epub 2022 Feb 3" |
