ChemNanoMat, cilt.11, sa.3, ss.1-14, 2025 (Scopus)
n this study, the use of nano Hydroxyapatite (HAp) adsorbent
as an adsorbent for the removal of methyl violet 6B (MV 6B) dye
from aqueous solution was investigated. Nano adsorbent
characterization was carried out by X-Ray Diffractometer (XRD),
scanning electron microscopy (SEM), spot energy dispersive
spectroscopy (EDS) analyses. The dye removal study was carried
out using the classical batch adsorption process. In addition,
isotherm, kinetic and thermodynamic adsorption studies were
carried out for methyl violet 6B. In adsorption studies, the
effects of initial dye concentration (10–40 mg/L), solution pH (2-
8), adsorbent dosage (0.5–2.5 mg) and contact time (15–
90 min.) on dye removal were investigated. At dye concen-
tration was 10 mg/L, adsorbent dosage was 1 mg, solution pH
was 6, contact time was 30 min and ambient temperature 25 °C,
the highest MV 6B removal was 95.86 % and 1200 mg/g
adsorption capacity was obtained. As a result of adsorption
isotherm and kinetic studies, it was observed that the
adsorption values obtained from the models were compatible
with Langmuir isotherm model and pseudo-second order
kinetic model. According to the thermodynamic data obtained,
it was determined that the adsorption process was spontaneous
and exothermic.