Enhanced uptake capacities and isosteric heats of CO2 and CH4 adsorption on spent coffee ground activated carbons loaded with metal ions

Çisem KIRBIYIK; Burak Zafer BÜYÜKBEKAR; Mahmut KUŞ; Mustafa ERSÖZ

Makale detayları

Enhanced uptake capacities and isosteric heats of CO2 and CH4 adsorption on spent coffee ground activated carbons loaded with metal ions

Yazarlar:

Çisem KIRBIYIK | Burak Zafer BÜYÜKBEKAR | Mahmut KUŞ | Mustafa ERSÖZ

Yayıncı:

TUBITAK

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Turkish Journal of Chemistry 2019 Vol.43 Issue 3, pp.948-962

Belge Tipi:

Makale

Yayın Tarihi:

6/2019

Belge Dili:

İngilizce

Document ID (Org No.):

2000725694

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 


Low-cost activated carbon (AC) samples obtained from waste coffee grounds were used for CO2 and CH4adsorption. ACs were prepared by chemical activation and carbonized at three different temperatures. AC carbonizedat 800 ◦ C showed a relatively high surface area (582.92 m2 g1) and high adsorption capacities of 2.6 mmol g1 and1.1 mmol g1 at 25 ◦ C for CO2 and CH4 , respectively. Adsorbent samples were prepared by loading of Fe3+ metalions onto ACs and their adsorption capacities were compared with those of nonloaded ACs. As expected, the loading ofFe3+ metal ions increased the adsorption capacities at all temperatures and the adsorption capacity of Fe3+ -loaded ACcarbonized at 800 ◦ C was 3.1 mmol g1 for CO2 and 1.2 mmol g1 for CH4 at 25 ◦ C. The isosteric heats of adsorptionwere calculated at 0–35 ◦ C with the range of 20–35 kJ mol1 and 18–23 kJ mol1 for CO2 and CH4 , respectively.According to our findings, bio-based ACs can be used as an effective and alternative adsorbent for capturing differentgas molecules.

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Makale detayları

Enhanced uptake capacities and isosteric heats of CO2 and CH4 adsorption on spent coffee ground activated carbons loaded with metal ions

Yazarlar: Çisem KIRBIYIK | Burak Zafer BÜYÜKBEKAR | Mahmut KUŞ | Mustafa ERSÖZ

Yayıncı: TUBITAK

Ana Başlıklar: Uygulamalı fizik

Dergi: Turkish Journal of Chemistry 2019 Vol.43 Issue 3, pp.948-962

Belge Tipi: Makale

Yayın Tarihi: 6/2019

Belge Dili: İngilizce

Document ID (Org No.): 2000725694

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Çisem KIRBIYIK | Burak Zafer BÜYÜKBEKAR | Mahmut KUŞ | Mustafa ERSÖZ

Yayıncı:

TUBITAK

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Turkish Journal of Chemistry 2019 Vol.43 Issue 3, pp.948-962

Belge Tipi:

Makale

Yayın Tarihi:

6/2019

Belge Dili:

İngilizce

Document ID (Org No.):

2000725694

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527