Dithiocarbamate-modified cellulose-based sorbents with high storage stability for selective removal of arsenite and hazardous heavy metals

Futo Morita; Keisuke Nakakubo; Koki Yunoshita; Masaru Endo; Foni B. Biswas; Tatsuya Nishimura; Asami S. Mashio; Hiroshi Hasegawa; Tsuyoshi Taniguchi; Katsuhiro Maeda

doi:10.1039/D0RA05573E

Dithiocarbamate-modified cellulose-based sorbents with high storage stability for selective removal of arsenite and hazardous heavy metals†

Futo Morita,‡^a Keisuke Nakakubo,

‡^a Koki Yunoshita,‡^a Masaru Endo,

^ab Foni B. Biswas,

^ac Tatsuya Nishimura,

^a Asami S. Mashio,

^a Hiroshi Hasegawa,

*^a Tsuyoshi Taniguchi

*^a and Katsuhiro Maeda

*^ad

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* Corresponding authors

^a Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
E-mail: hhiroshi@se.kanazawa-u.ac.jp, tsuyoshi@p.kanazawa-u.ac.jp, maeda@se.kanazawa-u.ac.jp

^b Daicel Corporation, 1239 Shinzaike, Aboshi-ku, Himeji, Hyogo 671-1283, Japan

^c Department of Chemistry, University of Chittagong, Chittagong 4331, Bangladesh

^d Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan

Abstract

A series of cellulose derivatives bearing dialkyl dithiocarbamate (DTC) groups were synthesized. Their ability of sorption of arsenite (As(III)) and heavy metals and their storage stability in the solid state were investigated. Among them, DTC-modified cellulose derived from L-proline showed the highest sorption capacity for As(III) and heavy metals to selectively remove them from aqueous media. It also showed exellent storage stability in air at 40 °C.

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Dithiocarbamate-modified cellulose-based sorbents with high storage stability for selective removal of arsenite and hazardous heavy metals†

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