| Title: | Clean water generation through a multifunctional activated carbon-TiO(2) interfacial solar distillation system |
| Author(s): | Chen KY; Lai WW; Wang HJ; Lin CC; Chen CW; Lin AY; |
| Address: | "Graduate Institute of Environmental Engineering, National Taiwan University 71-Chou-shan Road Taipei 106 Taiwan yuchenlin@ntu.edu.tw +886-2-3366-4386. Department of Environmental Science and Engineering, Tunghai University Taichung 407 Taiwan. International Graduate Program of Molecular Science and Technology, National Taiwan University (NTU-MST) Taipei 106 Taiwan. Molecular Science and Technology Program, Taiwan International Graduate Program, Academia Sinica Taiwan. Department of Materials Science and Engineering, National Taiwan University No. 1, Sec. 4, Roosevelt Rd. Taipei 106 Taiwan" |
| ISSN/ISBN: | 2046-2069 (Electronic) 2046-2069 (Linking) |
| Abstract: | "Solar distillation is emerging as an environmentally friendly and energy-effective technology for clean water generation. However, bulk water heating and the possibly complex composition of water matrices of source water could undermine the system efficacy. In this study, an interfacial evaporation device consisting of activated carbon combined with P25 TiO(2) as the top layer and polyethylene foam as the bottom layer (AC-P25/foam device) was established. With the excellent optical absorbance of AC and the heat localization effect contributed by the PE foam, the evaporation rate (r (evp)) of the device (r (evp) = 2.1 kg m(-2) h(-1)) was improved by 209% and 71% compared with that of the water-only (r (evp) = 0.68 kg m(-2) h(-1)) and conventional evaporation (i.e., submerged AC-P25) systems (r (evp) = 1.23 kg m(-2) h(-1)), respectively. The reusability test showed the stable evaporation performance of AC-P25/foam within 7 cycles; this interfacial evaporation was also found to be less affected by suspended solids in water due to a reduction in the influence of light scattering. The AC-P25/foam device not only possessed photothermal ability for water distillation but was also able to prevent enrichment of volatile organic compounds (i.e., phenol) with approximately 95% removal efficiency through adsorption and photocatalytic reactions under illumination. Additionally, an outdoor solar distillation test performed with synthetic saline water demonstrated the desalination ability of the AC-P25/foam device, with the concentrations of all ions in the distilled water |
| Notes: | "PubMed-not-MEDLINEChen, Kuan-Yu Lai, Webber Wei-Po Wang, Hui-Ju Lin, Cheng-Chieh Chen, Chun-Wei Lin, Angela Yu-Chen eng England 2022/04/29 RSC Adv. 2021 Jun 29; 11(37):23036-23044. doi: 10.1039/d1ra02185k. eCollection 2021 Jun 25" |
