Artocarpus odoratissimus skin as a potential low-cost biosorbent for the removal of methylene blue and methyl violet 2B

作者：Lim Linda B L^*; Priyantha Namal; Ing Chieng Hei; Dahri Muhd Khairud; Tennakoon D T B; Zehra Tasneem; Suklueng Montri

来源：Desalination and Water Treatment, 2015, 53(4): 964-975.

DOI：10.1080/19443994.2013.852136

• Kinetics
• Biosorption
• Methylene blue
• Methyl violet 2B
• Artocarpus odoratissumus

Artocarpus odoratissimus (Tarap) skin shows great potential as an effective low-cost biosorbent for toxic dyes, methylene blue (MB), and methyl violet 2B (MV). The Langmuir adsorption isotherm leads to the maximum biosorption capacities of this biomass, whose point of zero charge was at pH 4.4, of 0.577mmolg(-1) (184.6mgg(-1)) and 0.349mmolg(-1) (137.3mgg(-1)) for MB and MV, respectively. The Sips isotherm model is the best fit for adsorption of MB, while both the Langmuir and Sips models are in good agreement for MV. Mass transfer of dye species from solution to the biosorbent phase is fast with 50% dye being removed in less than 1min following the pseudo-second-order kinetics.

• 出版日期2015-1-23