Analisis Sifat Fisika dan Kimia Grafena Berlapis Nano dari Tempurung Kelapa dan Cangkang Kemiri Pada Berbagai Temperatur Pirolisis dan Massa Bahan Baku

Abstract

Research on the analysis of the physical and chemical properties of Nano-Coated Graphene (GBN) from coconut shells and candlenut shells using the pyrolysis method has been carried out. The use of coconut shell in this research is because it contains 33.61% cellulose and 19.27% hemicellulose and has a very high carbon content. And candlenut shells contain 49.22% hemicellulose and 54.46% lignin and have a very large carbon content. The aim of this research is to determine the morphological (physical and chemical) properties of nano-coated graphene (GBN) from coconut shells and candlenut shells due to variations in pyrolysis temperature and raw material mass. This research is a laboratory experimental research. GBN was synthesized using the pyrolysis method, and GBN products from each variation of pyrolysis temperature and raw material mass were characterized using X-Ray Diffraction (XRD) and Scanning Electron Microscopy Energy Dispersive X-Ray (SEMEDX). XRD data from GBN shows that there is a weak and wide peak at C (002) (2Ɵ = 24.7°), meaning that graphene was successfully produced. This XRD data is supported by SEM-EDX data, GBN has a regular hexagonal morphology and GBN is dominated by carbon atoms (C) 80 – 84% and oxygen (O) 12-19% (EDX data). The optimum conditions for pyrolysis in coconut shells (temperature (TPirolysis), pyrolysis time (tPyrolysis) and raw material mass) in the GBN production process are TPirolysis = 600 °C; tPyrolysis = 4 and raw material mass = 500 gr, with an abundance of carbon (85.26%) while the optimum conditions for candlenut shells are Tpyrolysis = 600 °C; tPyrolysis = 4 and raw material mass = 500 gr, with carbon abundance (84.24%). All data shows that GBN can be produced from coconut shells and candlenut shells. Shows that research data on coconut shells and candlenut shells have potential as raw materials for large-scale GBN production