Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China.
Bioresour Technol. 2012 Nov;124:516-9. doi: 10.1016/j.biortech.2012.09.002. Epub 2012 Sep 8.
In this short communication, the demonstration of a new integrated process concept involving the use of a bio-based material for detoxification of Cr(VI)-contaminated water is presented. Specifically, the bio-based material is a polyaniline/cellulose fiber composite prepared by in situ polymerization of aniline in the presence of cellulose fibers, using the industrially favorable hydrogen peroxide (instead of costly oxidants such as ammonium persulfate) as the oxidant. Ferric chloride was used to catalyze the polymerization reaction. The process conditions for the preparation of the composite were preliminarily optimized, and the proposed concept was demonstrated. Under the conditions studied, the use of the composite was quite effective in the detoxification of the model solution. The proposed concept may serve as an alternative approach for water treatment using renewable materials.
在这篇简短的交流文章中，展示了一种新的集成工艺概念，该概念涉及使用生物基材料来净化含六价铬的水。具体来说，该生物基材料是一种聚苯胺/纤维素纤维复合材料，通过在纤维素纤维存在下原位聚合苯胺制备而成，使用工业上有利的过氧化氢（而不是昂贵的氧化剂，如过硫酸铵）作为氧化剂。氯化铁被用来催化聚合反应。初步优化了制备复合材料的工艺条件，并验证了该概念。在所研究的条件下，该复合材料在模型溶液的解毒中非常有效。该概念可作为使用可再生材料进行水处理的替代方法。
