The sorption of cadmium(II) ions on mercerized rice husk and activated carbon

Mas Rosemal Hakim MAS HARIS; Nor Aimi ABDUL WAHAB; Chong Wan RENG

Makale detayları

The sorption of cadmium(II) ions on mercerized rice husk and activated carbon

Yazarlar:

Mas Rosemal Hakim MAS HARIS | Nor Aimi ABDUL WAHAB | Chong Wan RENG

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2011 Vol.35 Issue 6, pp.939-950

Belge Tipi:

Makale

Yayın Tarihi:

5/2011

Belge Dili:

Türkçe

Document ID (Org No.):

2000727743

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

This work describes the removal of Cd(II) ions in aqueous  solution by unmodified and base-modified rice husk (RH) as compared to  that by activated carbon (AC).  Mercerization of RH was carried out by  using dilute solutions (0.013 M) of NaOH, KOH, and Ca(OH)2.  The  experiments were conducted in duplicate under 1-batch and 2-batch  treatments.  In the 1-batch treatment, a fresh 200 mg of each  adsorbent was used to study the sorption of the Cd(II) ions from  100-mL solutions at an initial concentration of 5 mg L-1.  The  adsorption percentage increased in the order of unmodified RH (80.13  \pm 0.46%) < Ca(OH)2-modified RH (90.74 \pm 0.18%) < NaOH-modified  RH (93.36 \pm 0.23%) \le KOH-modified RH (93.78 \pm 0.27%) < AC  (98.4 \pm 0.18%).  In the 2-batch treatment, a fresh 100 mg of each  adsorbent was placed in 100-mL solutions at an initial concentration  of 5 mg L-1 of Cd(II) ions for 30 min, and the resulting solutions  were filtered.  The filtrates were subjected to another fresh 100 mg  of each adsorbent for an additional 30 min.  The percentage removal of  the metal ion using the 2-batch treatment for unmodified RH,  base-modified RH, and AC was 97.71%, 98.00 \pm 1.00%, and nearly  100%, respectively.

 

This work describes the removal of Cd(II) ions in aqueous  solution by unmodified and base-modified rice husk (RH) as compared to  that by activated carbon (AC).  Mercerization of RH was carried out by  using dilute solutions (0.013 M) of NaOH, KOH, and Ca(OH)2.  The  experiments were conducted in duplicate under 1-batch and 2-batch  treatments.  In the 1-batch treatment, a fresh 200 mg of each  adsorbent was used to study the sorption of the Cd(II) ions from  100-mL solutions at an initial concentration of 5 mg L-1.  The  adsorption percentage increased in the order of unmodified RH (80.13  \pm 0.46%) < Ca(OH)2-modified RH (90.74 \pm 0.18%) < NaOH-modified  RH (93.36 \pm 0.23%) \le KOH-modified RH (93.78 \pm 0.27%) < AC  (98.4 \pm 0.18%).  In the 2-batch treatment, a fresh 100 mg of each  adsorbent was placed in 100-mL solutions at an initial concentration  of 5 mg L-1 of Cd(II) ions for 30 min, and the resulting solutions  were filtered.  The filtrates were subjected to another fresh 100 mg  of each adsorbent for an additional 30 min.  The percentage removal of  the metal ion using the 2-batch treatment for unmodified RH,  base-modified RH, and AC was 97.71%, 98.00 \pm 1.00%, and nearly  100%, respectively.

Makale detayları

The sorption of cadmium(II) ions on mercerized rice husk and activated carbon

Yazarlar: Mas Rosemal Hakim MAS HARIS | Nor Aimi ABDUL WAHAB | Chong Wan RENG

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 2011 Vol.35 Issue 6, pp.939-950

Belge Tipi: Makale

Yayın Tarihi: 5/2011

Belge Dili: Türkçe

Document ID (Org No.): 2000727743

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Mas Rosemal Hakim MAS HARIS | Nor Aimi ABDUL WAHAB | Chong Wan RENG

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2011 Vol.35 Issue 6, pp.939-950

Belge Tipi:

Makale

Yayın Tarihi:

5/2011

Belge Dili:

Türkçe

Document ID (Org No.):

2000727743

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527