International Journal of Chemical and Biochemical Sciences (ISSN 2226-9614)[/vc_column_text][/vc_column][/vc_row]
VOLUME 25(19) (2024)
Synthesis and characterization of composite membranes based on bacterial cellulose and coral powder
- Gustian1*, A. R. Petinggi2, E. Maryanti 1, E. Angasa 1, and Nesbah 1
1Department of Chemistry, Faculty of Mathematics and Natural Sciences Universitas Bengkulu, Jalan Raya Kandang Limun, Bengkulu 38371, Indonesia
2Bachelor degree Department of Chemistry, Faculty of Mathematics and Natural Sciences Universitas Bengkulu, Jalan Raya Kandang Limun, Bengkulu 38371, Indonesia
Abstract
Preparation of bacterial cellulose and coral powder composite membranes has been carried out. Composite membranes were made by mixing bacterial cellulose with coral powder at different mass ratios at temperatures of 25 ºC, 40 ºC, 60 ºC and At 80 ºC, the composite membrane was evaluated for Fourier Transformation of Infrared, X-Ray Diffraction, degree of swelling, proton conductivity and methanol permeability. From the FT-IR analysis it was found that in the absorption area around 1461.385 – 911cm-1 showing the Si-O-Si stretching functional group, and in the absorption area around 3000 – 3500 cm-1 showing the (O-H) group which shows the semicrystalline composite membrane for each mass variation, according to the results of X-Ray Diffraction. The maximum proton conductivity has been measured as 3.32 x 10-3 S.cm-1 at 60°C, produces a degree of swelling of 31.14% and methanol permeability of 3.72 × 10-9 mol/cm.s for a mass ratio of bacterial cellulose:coral powder composite membrane 4:1.
Keywords: Composite membrane, proton conducting, bacterial cellulose, coral powder
Full length article – PDF *Corresponding Author, e-mail: Irfan.g@unib.ac.id Doi # https://doi.org/10.62877/32-IJCBS-24-25-19-32