Adsorption of Methylene Blue from Aqueous Solution Using Honeycomb-Cinder

Abstract:

The adsorption behavior of methylene blue (MB) dye from aqueous solutions onto honeycomb-cinder (HC) and its acid-activated product was investigated in a batch system. The results showed the adsorption capacity was decreased for raw HC samples with the increase of pH value, while it was increased for activated samples. The adsorption data were fit with Langmuir isotherm model for MB adsorption by all samples. The MB adsorption capacity on samples was increased from 2.62 mg/g to 7.81 mg/g and 7.00 mg/g after acid-activated by HCl and H₂SO₄, respectively. The adsorption processes of MB followed pseudo-second-order kinetics with a coefficient of correlation≥0.99. This study demonstrated that acid-activated HC has superior adsorbing ability for MB than raw HC and can be used as alternative adsorbents in dye wastewater treatment.

• Periodical: Advanced Materials Research (Volumes 550-553)
• Pages: 2259-2262
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.550-553.2259
• Online since: July 2012
• Authors: Song Bo Cui, Hua Yong Zhang, Lu Yi Zhang
• Keywords: Acidification, Adsorption, Honeycomb-Cinder, Methylene Blue (MB)

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