Abstract:
Dyes production industry such as textile, produces wastewater which is high in color
and organic content. The presence of Methylene Blue, MB dye in discharged water is
hazardous for human beings. Most common adsorbent used for decolorization is from
chemical approach that often high cost and environment disadvantage. Therefore, the
potential of bamboo charcoal powder for MB removal is studied. Operating variables
studied were pyrolysis temperature, initial MB concentration, adsorbent dosage and
also the contact time. The adsorption capacity of MB increases with the increase of
pyrolysis temperature, contact time and adsorbent dosage but decreases with the
increasing of initial MB concentration. The adsorption percentage studied for
different pyrolysis temperature and different initial MB concentration, reached
28.831 % at pyrolysis temperature 900
C with initial concentration of 10%. The
adsorbent dosage at 0.1 Og and 0.15g seems to be overdose for initial MB
concentration of 20%. However, the adsorption percentage reached 66.940% when
reacted with 0.15g bamboo charcoal powder at pyrolysis temperature 900
°
C, also
with initial concentration 20%. By effect of contact time, the adsorption percentage of
bamboo charcoal powder at pyrolysis temperature of 900
°
C reached 77.6755% within
90 minutes of reaction with initial concentration 20%. The morphology of bamboo
charcoal powder at pyrolysis temperature 500
°
°
C, 700
°
C and 900
C was captured at
variety of magnification scales which are x2500, x5000 and x7500 using the Scanning
Electrons Microscopy (SEM) and it shows that the pores of bamboo charcoal powder
at pyrolysis temperature 900
°
C seem wider compared to bamboo charcoal powder at
pyrolysis temperature 500
°
C. The Fourier Transform Infrared (FTIR)
results showed that the functional group that might occur in MB solution was alkenes
with -C=C- stretch, aliphatic amines with C-N stretch, alkynes with C-H bending
and also alkyl halides with C-Cl stretch. Most of the functional groups occurred in
bamboo charcoal powder denotes the presence of carbon.
