Application of cellulose acetate-TiO₂ hollow fiber photocatalytic membrane composite for profenofos degradation

The technology of hollow fiber photocatalytic membrane composite often used in pesticide treatment, including profenofos degradation. This study aims to determine the influence of dope composition variation on mechanical properties and performance of hollow fiber photocatalytic membrane composite of cellulose acetate (CA)-TiO₂ for profenofos degradation. Hollow fiber photocatalytic membrane composite of CA-TiO₂ prepared using phase inversion method. Dope composition variation (CA: acetone: formamide) used were 19.8%: 72%: 8%; 20.8%: 52%: 27%; 21.8%: 51%: 27%; 22.8%: 50%: 27%; 24.8%: 45%: 30% (% w/w) and addition 0.2% TiO₂ (% w/w). Characterization of CA-TiO₂ hollow fiber photocatalytic membrane composite include: mechanical properties test, SEM, FTIR, performance test and application for profenofos degradation. The results of this study concluded that the optimal dope composition of CA-TiO₂ hollow fiber photocatalytic membrane composite (CA: acetone: formamide) is 24.8%: 45%: 30% w/w. Mechanical characteristics of CA-TiO₂ hollow fiber photocatalytic membrane composite includes 1,85 x 10³ kN/ m² of stress, 1.71 of strain and 4,9 x 10³ kN/m² of Young’s modulus. The performance test of CA-TiO₂ hollow fiber photocatalytic membrane composite for profenofos degradation resulted in 61.72 L/ m².h. of flux, 43.49% of rejection coefficient, and 43.50% of total efficiency degradation.