Activated carbon developed from orange peels: Batch and dynamic competitive adsorption of basic dyes
作者： Maria Emilia Fernandez , Gisel Vanesa Nunell , Pablo Ricardo Bonelli , Ana Lea Cukierman
DOI: 10.1016/J.INDCROP.2014.09.015
关键词: Orange (colour) 、 Specific surface area 、 Rhodamine 、 Organic chemistry 、 Rhodamine B 、 Chemistry 、 Methylene blue 、 Activated carbon 、 Adsorption 、 Chemical engineering 、 Citrus × sinensis
摘要: Abstract Activated carbon from orange (Citrus sinensis) peel was developed through H3PO4 acid activation. Its ability as an adsorbent for the removal of two representative basic dyes (methylene blue and rhodamine B) single binary solutions in batch continuous modes examined. The peel-based activated presented a high specific surface area (1090 m2/g), predominance mesopores acidic character. It also showed adsorption capacity both dynamic modes. Experimental equilibrium isotherms obtained single-dye fitted Langmuir–Freundlich model, those were properly described by multi-component models. Breakthrough curves exhibited better performance B. Adsorption at exhaustion time this dye 11% higher than methylene blue. Additional experiments conditions with solution pointed to competition active sites carbon. adequately represented modified two-parameter model.
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