Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China.
Carbohydr Polym. 2013 Jan 30;92(1):659-61. doi: 10.1016/j.carbpol.2012.09.083. Epub 2012 Oct 8.
Cellulose fibers were engineered by in situ oxidative polymerization of aniline using ammonium persulfate as oxidant/initiator. The polyaniline/cellulose fiber composite was used for the treatment of Cr(VI)-contaminated water, and its effect was evaluated. Under the conditions studied, the composite exhibited very high water detoxification efficiency, as a result of reduction of Cr(VI) to Cr(III) in combination with adsorption of the Cr(III) onto the cellulosic substrate. Cellulose fibers used in the study served two purposes simultaneously, i.e., carrier of polyaniline and the adsorbent for Cr(III). The complexation of polyaniline with cellulose fibers provided synergistic effects on Cr(VI)-detoxification.
采用过硫酸铵作为氧化剂/引发剂，通过苯胺的原位氧化聚合对纤维素纤维进行了工程化处理。将聚苯胺/纤维素纤维复合材料用于处理含铬 (VI) 的水，并对其效果进行了评估。在所研究的条件下，由于将 Cr(VI) 还原为 Cr(III) 并将 Cr(III) 吸附到纤维素基质上，该复合材料表现出非常高的水解毒效率。研究中使用的纤维素纤维同时具有两个用途，即聚苯胺的载体和 Cr(III) 的吸附剂。聚苯胺与纤维素纤维的络合对 Cr(VI) 的解毒具有协同作用。
