Jibril Maulana, Heru Suryanto, Aminnudin Aminnudin
The polymer composed of lengthy chains of glucose produced by bacteria is known as Bacterial Cellulose/BC. This chain is made up of O-H bonds as well as beta 1 and 4 to form a three-dimensional matrix structure. Graphene can increase the ability of CuO and the stability of BC/CuO. Graphene, as a large specific surface area material, has some indicated can influence the bonding of bacterial cellulose and also can affect the crystallinity and molecular bonding in BC. This study’s aim is to analyze the effect of various graphene addition (0.1, 0.3, and 0.5%wt of CuO) on the BC/CuO nanocomposite properties. Methods for BC synthesis was using pineapple peel extract in fermentation for 10 days. BC was homogenized by High-Pressure Homogenizer (HPH). An ultrasonic homogenizer was used to mix BC/CuO/Graphene composite solution. The solution was then dried using freeze-drying to produce a porous membrane. Nanocomposites were analyzed using XRD and FTIR to determine the influence of graphene addition on the crystalline and functional groups of BC/CuO. This research successfully figures out that adding CuO and graphene decreases the crystallinity of BC/CuO/Graphene. Adding more graphene makes a lower peak from control (88.85%) until BC/CuO with the graphene addition of 0.50% (79.78%) of Cr. The FTIR results indicated that graphene addition could affect O-H bonds, and increasing C-C bonds have been seen in changing transmittances in wavenumber 3400 cm-1 and 1172 cm-1 © 2025 American Institute of Physics Inc.. All rights reserved.
Department of Mechanical Engineering, Graduate School, Universitas Negeri Malang, Jl. Semarang 5, East Java, Malang, Indonesia; Center of Excellence for Cellulose Composite (CECCom), Department of Mechanical Engineering, Universitas Negeri Malang, Jl. Semarang 5, East Java, Malang, Indonesia
