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Efficient Adsorptive Removal of Toxic Amaranth Dye from Water using a Zeolitic Imidazolate Framework
Lin and Wu
Adsorbents reported to remove a toxic acidic azo dye, Amaranth (AMR) are very limited, and their typical adsorption capacities are quite low. Recently, a zeolitic imidazolate framework (ZIF‐67) has been proposed as a novel adsorbent as ZIF‐67 possesses high surface area, superior chemical stability in water and positive charges, making it a promising adsorbent for AMR. Nevertheless, no studies have been conducted to investigate the adsorption of AMR to ZIF‐67. Herein, ZIF‐67 is employed for the first time to remove AMR from water via adsorption. Adsorption behaviors are investigated via determining the adsorption kinetics and isotherm. ZIF‐67 also exhibits a significant higher maximum adsorption capacity (qmax = 121 mg g−1 at 30 °C) than most of the reported adsorbents. ZIF‐67 can be also regenerated by washing it with NaCl solutions and the regeneration efficiency remains effective over multiple cycles, demonstrating that ZIF‐67 is a promising adsorbent for AMR.
Efficient Adsorptive Removal of Toxic Amaranth Dye from Water using a Zeolitic Imidazolate Framework
Lin and Wu
Adsorbents reported to remove a toxic acidic azo dye, Amaranth (AMR) are very limited, and their typical adsorption capacities are quite low. Recently, a zeolitic imidazolate framework (ZIF‐67) has been proposed as a novel adsorbent as ZIF‐67 possesses high surface area, superior chemical stability in water and positive charges, making it a promising adsorbent for AMR. Nevertheless, no studies have been conducted to investigate the adsorption of AMR to ZIF‐67. Herein, ZIF‐67 is employed for the first time to remove AMR from water via adsorption. Adsorption behaviors are investigated via determining the adsorption kinetics and isotherm. ZIF‐67 also exhibits a significant higher maximum adsorption capacity (qmax = 121 mg g−1 at 30 °C) than most of the reported adsorbents. ZIF‐67 can be also regenerated by washing it with NaCl solutions and the regeneration efficiency remains effective over multiple cycles, demonstrating that ZIF‐67 is a promising adsorbent for AMR.
Efficient Adsorptive Removal of Toxic Amaranth Dye from Water using a Zeolitic Imidazolate Framework
Lin and Wu
Lin, Kun‐Yi Andrew (author) / Wu, Chang‐Husan (author)
Water Environment Research ; 90 ; 1947-1955
2018-11-01
9 pages
Article (Journal)
Electronic Resource
English
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