A novel method for D-glucose (D-Glu) and trimethylammonium chloride immobilization onto the surface of cellulose powder was studied. Cellulose powder was grafted with vinyl monomer glycidyl methacrylate (GMA), using ceric ammonium nitrate as an initiator, and further derived with quaternary ammonium groups to build the D-GluN(+)-type cellulose absorbent (Cell-g-GMA-D-GluN(+)). Epoxy cellulose was found to contain 5.48 mmol/g epoxy groups. The adsorption process of modified cellulose was described by the Langmuir model of adsorption well, the maximum adsorption capacity of chromium (VI) reaching a value of 71.79 mg/g. Adsorption desorption tests of the D-GluN(+)-type cellulose derivatives showed a good reproducibility of the adsorbent, so that the adsorbent could be reused for at least six times.
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Univ Fed Ouro Preto, Inst Ciencias Exatas & Biol, Dept Quim, BR-35400000 Ouro Preto, MG, BrazilUniv Fed Ouro Preto, Inst Ciencias Exatas & Biol, Dept Quim, BR-35400000 Ouro Preto, MG, Brazil
Alves Gurgel, Leandro Vinicius
Perin de Melo, Julio Cesar
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Univ Estadual Campinas, Inst Quim, BR-13084971 Campinas, SP, BrazilUniv Fed Ouro Preto, Inst Ciencias Exatas & Biol, Dept Quim, BR-35400000 Ouro Preto, MG, Brazil
Perin de Melo, Julio Cesar
de Lena, Jorge Carvalho
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Univ Fed Ouro Preto, Escola Minas, Dept Geol, BR-35400000 Ouro Preto, MG, BrazilUniv Fed Ouro Preto, Inst Ciencias Exatas & Biol, Dept Quim, BR-35400000 Ouro Preto, MG, Brazil
de Lena, Jorge Carvalho
Gil, Laurent Frederic
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Univ Fed Ouro Preto, Inst Ciencias Exatas & Biol, Dept Quim, BR-35400000 Ouro Preto, MG, BrazilUniv Fed Ouro Preto, Inst Ciencias Exatas & Biol, Dept Quim, BR-35400000 Ouro Preto, MG, Brazil