Abstract
Abstract The absorption capability of Zeolitic Imidazolate Framework-8 (ZIF-8) derived from metal organic frameworks family was investigated for the removal of humic acid at different loading and temperature conditions. In this present study, nano ZIF-8 has been used as an adsorbent due to a relatively high surface area of the particles (1400 m2 gm−1) which could emerge as a potential adsorbent for water purification. Nano ZIF-8 particles were synthesized using single step room temperature procedure and characterized using different analytical instruments. Humic acid absorption process results showed exothermic in nature which was in contrast to the results reported in the literature. Kinetic and thermodynamic modelling of the results was explored for the adsorbent. The adsorption results are compared with various adsorbents to benchmark the material in this work. Reversibility and recyclability aspects of adsorption process are achieved with simple hot water washings.
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