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Yıl 2012, Cilt: 25 Sayı: 1, 59 - 87, 24.01.2012

İmran Ali , Sarita Dahıya Tabrez Khan

Öz

Removal of Direct Red 81 Dye from Aqueous Solution by Native and Citric Acid Modified Bamboo Sawdust - Kinetic Study and Equilibrium Isotherm Analyses

Yıl 2012, Cilt: 25 Sayı: 1, 59 - 87, 24.01.2012

İmran Ali , Sarita Dahıya Tabrez Khan

Öz

Adsorption of Direct Red 81 (DR81) dye was investigated using Bamboo Sawdust (BSD) and Treated Bamboo Sawdust (TBSD) in a batch system with respect to initial dye concentration, adsorbent dose, pH, temperature and contact time. Maximum adsorption capacity (qm) obtained from the Langmuir isotherm plots were 6.43 mg/g (89%) (DR81-BSD) and 13.83 mg/g (92%) (DR81-TBSD) at 303 K. Freundlich and Halsey models described the data more appropriately as compared to Langmuir, Dubinin-Kaganer-Radushkevich (DKR), Harkin-Jura and Temkin models. The adsorption dynamics conformed well to pseudo-second order kinetic equation. The adsorption process was controlled by both liquid-film and intra-particle diffusions. Thermodynamic parameters (ΔGo, ΔHo and ΔSo) suggested the adsorption process to be spontaneous, endothermic with increase in randomness at solid-solution interface.

Anahtar Kelimeler

Treated Bamboo Sawdust adsorption isotherm kinetic intra-particle diffusion

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Ayrıntılar

Birincil Dil İngilizce
Konular Mühendislik
Bölüm Chemistry
Yazarlar

İmran Ali

Sarita Dahıya

Tabrez Khan

Yayımlanma Tarihi 24 Ocak 2012
Yayımlandığı Sayı Yıl 2012 Cilt: 25 Sayı: 1

Kaynak Göster

APA Ali, İ., Dahıya, S., & Khan, T. (2012). Removal of Direct Red 81 Dye from Aqueous Solution by Native and Citric Acid Modified Bamboo Sawdust - Kinetic Study and Equilibrium Isotherm Analyses. Gazi University Journal of Science, 25(1), 59-87.
AMA Ali İ, Dahıya S, Khan T. Removal of Direct Red 81 Dye from Aqueous Solution by Native and Citric Acid Modified Bamboo Sawdust - Kinetic Study and Equilibrium Isotherm Analyses. Gazi University Journal of Science. Ocak 2012;25(1):59-87.
Chicago Ali, İmran, Sarita Dahıya, ve Tabrez Khan. “Removal of Direct Red 81 Dye from Aqueous Solution by Native and Citric Acid Modified Bamboo Sawdust - Kinetic Study and Equilibrium Isotherm Analyses”. Gazi University Journal of Science 25, sy. 1 (Ocak 2012): 59-87.
EndNote Ali İ, Dahıya S, Khan T (01 Ocak 2012) Removal of Direct Red 81 Dye from Aqueous Solution by Native and Citric Acid Modified Bamboo Sawdust - Kinetic Study and Equilibrium Isotherm Analyses. Gazi University Journal of Science 25 1 59–87.
IEEE İ. Ali, S. Dahıya, ve T. Khan, “Removal of Direct Red 81 Dye from Aqueous Solution by Native and Citric Acid Modified Bamboo Sawdust - Kinetic Study and Equilibrium Isotherm Analyses”, Gazi University Journal of Science, c. 25, sy. 1, ss. 59–87, 2012.
ISNAD Ali, İmran vd. “Removal of Direct Red 81 Dye from Aqueous Solution by Native and Citric Acid Modified Bamboo Sawdust - Kinetic Study and Equilibrium Isotherm Analyses”. Gazi University Journal of Science 25/1 (Ocak 2012), 59-87.
JAMA Ali İ, Dahıya S, Khan T. Removal of Direct Red 81 Dye from Aqueous Solution by Native and Citric Acid Modified Bamboo Sawdust - Kinetic Study and Equilibrium Isotherm Analyses. Gazi University Journal of Science. 2012;25:59–87.
MLA Ali, İmran vd. “Removal of Direct Red 81 Dye from Aqueous Solution by Native and Citric Acid Modified Bamboo Sawdust - Kinetic Study and Equilibrium Isotherm Analyses”. Gazi University Journal of Science, c. 25, sy. 1, 2012, ss. 59-87.
Vancouver Ali İ, Dahıya S, Khan T. Removal of Direct Red 81 Dye from Aqueous Solution by Native and Citric Acid Modified Bamboo Sawdust - Kinetic Study and Equilibrium Isotherm Analyses. Gazi University Journal of Science. 2012;25(1):59-87.