Ultrafiltration membranes were prepared by non-solvent Phase inversion (NIPS) with polyvinylidene fluoride (PVDF) as raw material,graphene oxide (GO),multi-walled carbon nanotubes (MWCNTs) and polyvinyl alcohol (PVA) as additives.Rhodamine B,methylene blue and Congo red dyes were selected to prepare three kinds of single dye wastewater respectively,and the effects of initial dye concentration,ion concentration and ph value on membrane retention performance were studied.The results shown that with the dye concentration of 10mg/L,the composite membrane had the best retention performance for rhodamine B and methylene blue dyes,and the Congo red dye had the best retention performance when the dye concentration was 50mg/L.When the ion concentration of dye solution was 0.9mol/L,the retention performance of composite membrane was the best.When the pH=4 of dye solution was 4,the composite membrane had the best retention performance for rhodamine B solution and methylene blue solution.
Fang Ping, Wen Lu, Liang Lindong, Mei Yutian, Zhang Meng, Liu Kang
. Application of PVDF/GO/MWCNTs/PVA/PVP blend membrane in treating of dye wastewater[J]. New Chemical Materials, 2021
, 49(6)
: 276
-280
.
DOI: 10.19817/j.cnki.issn 1006-3536.2021.06.060
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