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- Title
Preparation and properties of poly(lactic acid)/g-titanium dioxide electrospinning membranes based on thiol-ene click chemistry.
- Authors
Tengfei Shao; Weijun Zhen; Junwu Chen
- Abstract
The g-titania functional additives were prepared via thiol-ene click chemical reaction, and then the polylactic acid/g-titania nanofiber membrane was prepared via electrospinning technology. Characterization via scanning electron microscopy and nitrogen adsorption/desorption showed that the average fiber diameter of the TP4 fiber membrane was 489 nm, the specific surface area was 34.69 m2·g-1, and the average pore size was 22.31 nm. The adsorption mechanism, photocatalytic degradation performance, and reusability of polylactic acid/g-titania nanofibrous membranes were characterized. The results showed that the adsorption of methylene blue by TP4 nanofiber membrane followed a pseudo-second-order kinetic model, which could be represented by the Langmuir isotherm model, and the maximum adsorption capacity was 35.44 mg-g-1. In addition, the photocatalytic degradation of methylene blue by TP4 nanofiber membrane followed a first-order kinetic model and exhibited high reusability. Therefore, polylactic acid/g-titania nanofiber membrane, as an efficient dye removal material, shows a good application prospect in wastewater treatment.
- Subjects
CLICK chemistry; LACTIC acid; POLYLACTIC acid; CHEMICAL reactions; METHYLENE blue; LANGMUIR isotherms
- Publication
Polymers for Advanced Technologies, 2023, Vol 34, Issue 4, p1087
- ISSN
1042-7147
- Publication type
Article
- DOI
10.1002/pat.5954