Abstract:
Textile industrial waste is one of the factors causing water pollution. Textile industrial
waste contains organic material in the form of synthetic dyes. One way to overcome
pollution by textile industrial waste is using a degradation method with the help of a
catalyst. This study aims to determine the ability of hematite (α-Fe2O3) magnetic
nanoperticle doped with manganese (Mn) to degrade methylene blue. Hematite (α-
Fe2O3) magnetic nanoparticle were obtained from natural sand in Logas Village,
Kuantan Singingi Regency. Natural sand was synthesized by ball milling method for
120 hours then doped with Mn as much as 0%, 10%, and 20% of the total mass and
milled by ball milling for 20 hours. Testing the ability of Mn-doped hematite magnetic
nanoparticles as a catalyst in degrading methylene blue using the Uv-Vis
spectrophotometric method and showed excellent ability to degrade methylene blue.
The percentage degradation of methylene blue using hydrogen peroxide (H2O2) added
with 0%, 10% and 20% Mn doped hematite catalyst after 14 hours of reaction was
87.305%, 99.627% and 98.880%.
