文档介绍：Adsorption of manganese(Ⅱ) on cellulose fibre and
effect of different states of manganese(Ⅱ) on
position of hydrogen peroxide
Zhang Xuejin Li Youming and Lu Ruijiang
State Key Laboratory of Pulp and Paper Engineering State Key Laboratory of Pulp and Paper Engineering
South China University of Technology South China University of Technology
Guangdong; China Guangdong; China
e-mail:xuejin.******@mail. e-mail: ******@scut.
Abstract—The adsorption of “fresh” Mn(Ⅱ) and “aged” Mn(Ⅱ) and is derived mainly from the wood fiber itself. It will be
on eucalyptus holocellulose was characterized under alkaline accumulated much more with a higher degree of water system
conditions. There was a good linear relationship between closure. It has found that manganese ion was aging under
adsorbed Mn(Ⅱ) on cellulose and free Mn(Ⅱ) added. “Aged” cooking environment pH>10, and present as finely dispersed
Mn( Ⅱ) showed stronger affinities to pared to colloidal particles of hydrated oxides or hydroxide [4,5]. The
“fresh” Mn(Ⅱ) in the range of 0- μmol/gcellulose Mn(Ⅱ) catalytic activity of “fresh” manganese to peroxide under
added. Approximately 40% of free “aged” Mn(Ⅱ) added was alkaline solution have an obvious tendency to slow down with
adsorbed on cellulose fiber. Adsorption of “aged” Mn( Ⅱ) the aging time until a smaller fixed value [6,7]. This indicates