Separation Performance of Poly(vinylidene fluoride)-Cellulose Acetate Blend Membranes for Reactive Orange 16 Dye Removal Muhammad Reza (a*), Cynthia Linaya Radiman (b), Adean Mayasri (a), Ratu Fazlia Inda Rahmayani (c)
a) Department of Chemistry Education, Faculty of Teacher Training and Education, Universitas Islam Negeri Ar-Raniry, Jl. Syeikh Abdur Rauf, Banda Aceh 23111, Indonesia
*muhammad.reza[at]ar-raniry.ac.id
b) Inorganic and Physical Chemistry Division, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung, Indonesia
c) Chemistry Department, FKIP, Universitas Syiah Kuala, Jl. Tgk. Hasan Krueng Kalee, Banda Aceh 23111, Indonesia
Abstract
Reactive orange 16 (RO 16) is water soluble synthetic dye under azo reactive dyes that causes environmental pollution due to its harmful and mutagenic properties. Polymer-based membrane is one of technologies which commonly used to separate RO 16 from aqueous solution that frequently came from textile waste. The membranes were prepared via phase inversion method using various concentrations of cellulose acetate (CA) from 1 and 5 wt.% that blended into poly(vinylidene fluoride) (PVDF). The separation performance of membranes toward RO 16 was evaluated using flux measurement and fouling resistance. Compared to pristine PVDF membrane, PVDF-CA membranes have higher water flux where the values reached 125.62 L m-2 h-1 for blend membrane with 5% CA. This composition also exhibits the lowest fouling, indicated by the highest flux recovery ratio of 88,5%, where the water flux recovered to 111.26 L m-2 h-1 after backwash. In addition, this performance was supported by the highest reversible fouling. The morphological properties were also analyzed using Scanning Electron Microscope - Energy Dispersive X-Ray (SEM-EDX). The composition of oxygen atoms increased from 4.70 to 10.47 wt.% along with CA addition. All compositions show good separation performance, indicated by high percentages of rejection that greater than 90% for RO 16 removal.
