Adsorption of safranin-O dye by peanut shell-based polyurethane type foam

Bilal ACEMİOĞLU; Melike Hilal BİLİR; Mehmet Hakkı ALMA

doi:https://doi.org/10.32571/ijct.454516

Makale detayları

Adsorption of safranin-O dye by peanut shell-based polyurethane type foam

Yazarlar:

Bilal ACEMİOĞLU | Melike Hilal BİLİR | Mehmet Hakkı ALMA

Yayıncı:

İbrahim DEMİRTAŞ

Ana Başlıklar:

Kimya mühendisliği

Dergi:

International Journal of Chemistry and Technology 2018 Vol.2 Issue 2, pp.95-104

Belge Tipi:

Makale

Yayın Tarihi:

12/2018

Belge Dili:

İngilizce

Document ID (Org No.):

2000476863

Sıklık:

İki Yıllık

eISSN:

2602-277X

DOI:

https://doi.org/10.32571/ijct.454516

Özet:

 


The
adsorption of safranin-O dye was performed in batch and continuous column
sysytems by polyurethane-type
rigid foam produced from peanut shell. In batch system, effects of contact
time, initial dye concentration, solution pH and temperature on the adsorption
were investigated. In column system, solution flow rate and initial dye
concentration effect were studied. Under conditions studied, the adsorption of
safranin-O was   95-99% for batch system,
and 93-99% for column system. Adsorption isotherm best followed the Langmuir
model (R2 = 0.986).
Adsorption kinetics was in consistent
with best the pseudo-second order model (R2values ≥ 0.998). Adsorption was of sponteneous nature
and in favor of increasing temperature (i.e. endothermic nature). For example,
when the temperature was increased from 20 to 60°C, standard Gibbs free energy
change (ΔG°) dereased
regularitly from -5303 to -8170 J mol-1. The values of standard
enthalpy (ΔH°) and standard entropy
(ΔS°) were estimated as
13.35 kJ mol-1 and 0.64 kJ mol-1 K-1,
respectively. Moreover, FTIR and SEM analyses were done, and the results were
interpreated in detail.


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Makale detayları

Adsorption of safranin-O dye by peanut shell-based polyurethane type foam

Yazarlar: Bilal ACEMİOĞLU | Melike Hilal BİLİR | Mehmet Hakkı ALMA

Yayıncı: İbrahim DEMİRTAŞ

Ana Başlıklar: Kimya mühendisliği

Dergi: International Journal of Chemistry and Technology 2018 Vol.2 Issue 2, pp.95-104

Belge Tipi: Makale

Yayın Tarihi: 12/2018

Belge Dili: İngilizce

Document ID (Org No.): 2000476863

Sıklık: İki Yıllık

eISSN: 2602-277X

DOI: https://doi.org/10.32571/ijct.454516

Sayı

Yazarlar:

Bilal ACEMİOĞLU | Melike Hilal BİLİR | Mehmet Hakkı ALMA

Yayıncı:

İbrahim DEMİRTAŞ

Ana Başlıklar:

Kimya mühendisliği

Dergi:

International Journal of Chemistry and Technology 2018 Vol.2 Issue 2, pp.95-104

Belge Tipi:

Makale

Yayın Tarihi:

12/2018

Belge Dili:

İngilizce

Document ID (Org No.):

2000476863

Sıklık:

İki Yıllık

eISSN:

2602-277X

DOI:

https://doi.org/10.32571/ijct.454516