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Removal of Arsenic Using Nickel-Zinc Hydroxy Double Salts Tabuchi, Ryosuke 00315350 Ohe, Kaoru 大榮, 薫 オオエ, カオル Ohe 大榮 オオエ Kaoru 薫 カオル 宮崎大学 University of Miyazaki 00343335 大島, 逹也 オオシマ, タツヤ Oshima, Tatsuya 大島 オオシマ Oshima 逹也 タツヤ Tatsuya 宮崎大学 University of Miyazaki 20039291 馬場, 由成 ババ, ヨシナリ Baba, Yoshinari 馬場 ババ Baba 由成 ヨシナリ Yoshinari 宮崎大学 University of Miyazaki Hara, Takayoshi Shimazu, Shogo Arsenic, Hydroxy Double Salts, NiZn, Intercalation, Anion Exchange Arsenic with high toxicity is harmful to the environment and the human body. It is known that As（III） has higher toxicity than As（V）. It is necessary to develop adsorbent to effectively remove arsenic from wastewater and environmental water. NiZn hydroxyl double salt （NiZn） with acetate anion in interlayer was prepared by hydrothermal method. The effects of arsenic concentration on arsenic adsorption were investigated using the NiZn. Maximum adsorption capacities of As（III） and As（V） are 1.24 and 0.44mmol/g, respectively. At pH 10.5 As（III） was more effectively removed than As（V） using NiZn. From resulting data by XRD and FT-IR it was found that As（III） and As（V） was exchange with acetate anion in interlayer keeping the layer structure. University of Miyazaki, IRISH 2018-06 eng journal article VoR http://hdl.handle.net/10458/6881 https://miyazaki-u.repo.nii.ac.jp/records/6045 5th International Arsenic Symposium in MIYAZAKI 2018 18 20 https://miyazaki-u.repo.nii.ac.jp/record/6045/files/5th_int_p18.pdf application/pdf 1.1 MB 2020-06-22