Anugrah Ricky Wijaya, Resi Destiani, Salsabila Inas Pramila, Puspa Rahmadina Lestari, Lukluatus Syavika, Alif Alfarisyi Syah, Hanumi Oktiyani Rusdi, Neena Zakia
Mangrove plant around Prigi beach has the potential to be used as biochar adsorbent to remove nickel content. The high Ni concentrations can cause water pollution problems, which is needed as adsorbent at this time. This study aims to characterize mangrove biochar using XRF, SEM, and FT-IR and determine the optimization of the size and contact time of mangrove biochar on the nickel ion in the adsorption process. The leaves, seeds and mangrove stems were collected and produced biochar using the pyrolysis method, and then characterized with XRF, FT-IR and SEM. The results of this XRF analysis of mangrove plants contained a content of 0.01% NiO. The FT-IR results show the presence of the main functional group O-H at a wave number of 3319.49 cm-1, and SEM magnification of 2500x found that biochar has a rough morphology and the presence of micropores with an average particle diameter of 2018 nm. The adsorption test showed that the adsorbent in bulk size was able to adsorb the highest nickel metal ion of 99.4% with a contact time of 48 hours. © 2024 Author(s).
Department of Chemistry, Faculty of Mathematics and Science, State University of Malang, Jl. Semarang no.5, Indonesia