Details

Autor(en) / Beteiligte

• Wen, Chiyu
• Yang, Jing
• Guo, Hongshuang
• Li, Qingsi
• Zhang, Xiangyu
• Wang, Xiaodong
• Cao, Moyuan
• Zhang, Lei

Titel

Zwitterionic functionalized catalytic evaporator enables simultaneous solar distillation and organic pollutant degradation

Ist Teil von

• Applied energy, 2022-09, Vol.321, p.119372, Article 119372

Ort / Verlag

Elsevier Ltd

Erscheinungsjahr

2022

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• [Display omitted] •A self-floatable fabric is developed for simultaneous solar distillation and photodegradation.•Fibers can fragment bulk water into ultra-fine droplets, increase the saturated vapor pressure thus promote the distillation process.•Hollow glass microbeads are used to provide self-floatability and heat insulation.•Zwitterionic coating enables enhanced water pumping and multi-contamination repellence.•Fe-MOF is employed to perform organic pollutant degradation via photo-Fenton reaction. Solar distillation is regarded as a nearly ideal sustainable technology for clean water generation. However, micro- and macro-foulers live in the natural water and volatile organic compounds induced by overdischarging of wastewater are still the main challenges of solar distillation. Herein, a compositive strategy is presented to fabricate self-floatable catalytic evaporators with both solar distillation and organic pollutant degradation, through Fe MOF-loaded electrospinning and antibiofouling zwitterionic coating. The obtained catalytic evaporator with a fibrous structure can lead to enhanced solar distillation rate (1.43 kg m-2h−1) and conversion efficiency (89.41%). More importantly, the zwitterionic hydrogel coating endows the evaporator with superhydrophilicity for continuous water pumping and fascinating multi-contamination repellence against bacteria, alga, oil and salt, and the Fe MOF enables organic pollutants decomposition via photo-Fenton reaction. The currently designed catalytic evaporator integrates the above merits and is expected to provide a new dimension for the designing of multifunctional solar evaporation devices, solving the device contamination and organic residue issues in water treatment.