US 12,030,020 B2
Materials and methods for photothermal membrane distillation
Young-Shin Jun, St. Louis, MO (US); Srikanth Singamaneni, St. Louis, MO (US); Xuanhao Wu, St. Louis, MO (US); and Qisheng Jiang, St. Louis, MO (US)
Assigned to Washington University, St. Louis, MO (US)
Filed by Washington University, St. Louis, MO (US)
Filed on Jun. 7, 2023, as Appl. No. 18/330,673.
Application 18/330,673 is a continuation of application No. 16/939,761, filed on Jul. 27, 2020, granted, now 11,717,792.
Claims priority of provisional application 62/878,907, filed on Jul. 26, 2019.
Prior Publication US 2023/0321608 A1, Oct. 12, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B01D 67/00 (2006.01); B01D 61/36 (2006.01); B01D 69/02 (2006.01); B01D 69/12 (2006.01); B01D 69/14 (2006.01); B01D 71/34 (2006.01); C02F 1/44 (2023.01)
CPC B01D 67/00933 (2022.08) [B01D 61/3641 (2022.08); B01D 69/02 (2013.01); B01D 69/12 (2013.01); B01D 69/144 (2013.01); B01D 71/34 (2013.01); C02F 1/447 (2013.01); B01D 2325/38 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A photothermal membrane comprising a polydopamine (PDA) coated, polyvinylidene fluoride (PVDF) membrane, wherein the photothermal membrane has a solar conversion efficiency of at least about 30%, wherein the photothermal membrane has a permeate flux of at least about 0.40 kg m−2 h−1, and wherein the photothermal membrane is hydrophobic.