Preparation and Characterization of Biochar from Coconut Shell Biomass Activated Potassium Hydroxide (KOH)

Diana Zahra Safitri; Sarah Umairoh; Martin Saut Hamonangan Sirait; Ecclesia Siregar; Olo Imanuel Aritonang; Khairahma Khairahma

doi:10.30631/22.11-14

Authors

Diana Zahra Safitri Program Studi Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Medan
Sarah Umairoh Program Studi Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Med
Martin Saut Hamonangan Sirait Program Studi Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Medan
Ecclesia Siregar Program Studi Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Medan
Olo Imanuel Aritonang Program Studi Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Medan
Khairahma Khairahma Program Studi Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Medan

DOI:

https://doi.org/10.30631/22.11-14

Keywords:

Biomass, Coconut Shells, Biochar, Pottasium Hydroxide

Abstract

Biochar made from coconut shell biomass contains constituent elements such as, Al, Si, P, S, Cl, K, Ca, Cr, Mn, Fe, Ni, Cu, Zn, Sr, Ag, Cd, Zr, Br, and Rb. Where the largest components in this biochar are Potassium (K) of 2.17% and Aluminum (Al) of 1.51% and the presence of C-H and C-O groups with the presence of carbon, and has an amorphous material structure. After activation, the constituent components undergo an increase and chemical activation using KOH opens the pores and increases the surface area of biochar, thereby increasing its adsorption and reactivity capacity.