Guo, Jing Khan, Sovann Cho, So-Hye Kim, Jeonghwan 2024-01-19T20:04:41Z 2024-01-19T20:04:41Z 2021-09-02 2019-04-15 0169-4332 https://pubs.kist.re.kr/handle/201004/120100 ZnS nanoparticles with 90 nm diameter were synthesized by low-temperature method and immobilized onto the surface of polyvinylidene fluoride (PVDF) pellets prepared by phase inversion method. Results by FTIR and X-ray photoelectron spectroscopy revealed that the ZnS nanoparticles were immobilized tightly on the PVDF surface without their release and losing photocatalytic activity. The UV-absorption spectra showed that the PVDF matrix had no adverse effect on the optical properties of ZnS nanoparticles. Due to large size (5 mm) and excellent mechanical stability, the PVDF-ZnS pellets could be easily dispersed in the photocatalytic reactor treating methylene blue solution. The removal efficiency of the methylene blue with the PVDF-ZnS pellets was higher (more than 95%) than that observed by the control PVDF pellets or ZnS nanoparticles tested. No change in the removal efficiency was observed as the PVDF-ZnS pellets were reused by performing photocatalytic tests at the same experimental conditions repeatedly. English ELSEVIER SCIENCE BV RESPONSE-SURFACE METHODOLOGY TITANIUM-DIOXIDE FILMS PHOTODEGRADATION OPTIMIZATION PERFORMANCE GLASS Preparation and immobilization of zinc sulfide (ZnS) nanoparticles on polyvinylidene fluoride pellets for photocatalytic degradation of methylene blue in wastewater Article 10.1016/j.apsusc.2018.12.103 1 APPLIED SURFACE SCIENCE, v.473, pp.425 - 432 APPLIED SURFACE SCIENCE 473 425 432 scie scopus 000456951700057 2-s2.0-85058796064 Chemistry, Physical Materials Science, Coatings & Films Physics, Applied Physics, Condensed Matter Chemistry Materials Science Physics Article RESPONSE-SURFACE METHODOLOGY TITANIUM-DIOXIDE FILMS PHOTODEGRADATION OPTIMIZATION PERFORMANCE GLASS Zinc sulfide Polymer carrier Photocatalytic degradation Immobilization Phase inversion Reusability