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. Author manuscript; available in PMC: 2019 Jun 22.
Published in final edited form as: Chem Rev. 2019 Mar 27;119(8):5298–5415. doi: 10.1021/acs.chemrev.8b00593

Figure 39.

Figure 39.

(A) Illustration of the permeation and adsorption processes. The methylene blue solution spreads rapidly on the surface of a mat made of a blend of SiO2 and TiO2 and permeates through the void space between the nanofibers. Meanwhile, methylene blue molecules are predominantly captured by intrafiber pores to generate purified water. (B) Breakthrough curves for the permeation of a methylene blue solution through the porous mats at various fluxes. (C) Cyclic test at a flux of 5 mL/h. The insets are the optical images of porous mat before use (left), used (middle), and after calcination (right), respectively. Reprinted with permission from ref 653. Copyright 2013 Royal Society of Chemistry.