Nafrizal Annas, Heru Suryanto, Aminnudin, Jibril Maulana, Uun Yanuhar
Bacterial cellulose (BC) is synthesized from extract of pineapple peel and Acetobacter xylinum as fermentation bacteria. This study aims to investigate the influence of graphene concentration on the morphology and crystalinity in bacterial nanocellulose (BNC) nanocomposites. To obtain bacterial nanocellulose (BNC), the previously manufactured pellicle BC was homogenized using a high-speed blender and a high-pressure homogenizer (HPH). Bacterial nanocellulose was combined with different concentrations of graphene (0.25, 0.5, and 1%), and then put into an ultrasonic homogenizer. Then, BNC-graphene solution was poured into a glass mold laminated with aluminium foil, and it was dried in an oven for 14 hours, 80°C. Scanning electron microscopy (SEM) was used to observe the morphology of nanocomposites membrane. X-Ray Diffraction is used to investigate the crystallinity of nanocomposites membrane. The structure of BNC-graphene nanocomposites membrane become more compact, according to the synthesized results. A few peaks at 2θ of 14.5°, 16.6°, 22.7° are seen in the XRD analysis, as well as a graphene diffraction pattern peak at 2θ of 13.7°. Nanocomposites membrane's crystallinity was reduced after graphene was added when compared to nanocomposites membrane without graphene. © 2024 Author(s).
Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Malang, Jl. Semarang 5, Malang, 65145, Indonesia; Center of Excellence for Cellulose Composite (CECCom), Department of Mechanical Engineering, Universitas Negeri Malang, Jl. Semarang 5, Malang, 65145, Indonesia; Master Program of Mechanical Engineering, Graduate School, Universitas Negeri Malang, Jl. Semarang 5, Malang, 65145, Indonesia; Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, Brawijay University, Jl. Veteran, Malang, 65145, Indonesia
