A kind of polythioether cellulose compound(PTEC)was synthesized by etherification of rice husk cellulose with chloromethylthiirane(CMT) in alkaline media. The preparation conditions have been investigated. The PTEC wi...A kind of polythioether cellulose compound(PTEC)was synthesized by etherification of rice husk cellulose with chloromethylthiirane(CMT) in alkaline media. The preparation conditions have been investigated. The PTEC with 4 31% sulfur content was obtained by reacting 12 g rice husk cellulose with 36 mL chloromethylthiirane in 3 mol/L NaOH solution. The product has an adsorption capacity for Ag(Ⅰ) and Hg(Ⅱ) of 24 92 mg/g and 66 80 mg/g, respectively at pH=7 and for Pb(Ⅱ) it is 0 15 mg/g at pH=3. The fiber could be used as a adsorbent for metal ions.展开更多
文摘A kind of polythioether cellulose compound(PTEC)was synthesized by etherification of rice husk cellulose with chloromethylthiirane(CMT) in alkaline media. The preparation conditions have been investigated. The PTEC with 4 31% sulfur content was obtained by reacting 12 g rice husk cellulose with 36 mL chloromethylthiirane in 3 mol/L NaOH solution. The product has an adsorption capacity for Ag(Ⅰ) and Hg(Ⅱ) of 24 92 mg/g and 66 80 mg/g, respectively at pH=7 and for Pb(Ⅱ) it is 0 15 mg/g at pH=3. The fiber could be used as a adsorbent for metal ions.
