A Facile Preparation of Carbon-supported Nanoscale Zero-valent Iron Fibers
In this paper, ferric alginate fibers was prepared by wet spinning of sodium alginate into a coagulating bath containing ferric chloride. The carbon-supported nanoscale zero-valent iron fibers (CSNZVIF) were obtained through thermal degradation of ferric alginate fiber at 900℃under N2 atmosphere. The product was characterized by field emission scanning electron microscopy (FESEM), X-ray power diffractometer (XRD), and Brunauer-Emmett-Teller (BET) surface area. It was found that zerovalent iron particles were well dispersed in the amorphous carbon fibers. CSNZVIF has high surface areas of 352 m2/g. The existence of carboxylic group and hydroxyl group in ferric alginate structure unit plays key role in the formation of carbon-supported nanoscale zero-valent iron fibers. Fe3+ was reduced to Fe0 by hydroxyl group and as-formed amorphous carbon during heating under N2. This thermal degradation and self-reduction reaction of ferric alginate fiber is potentially scalable to large production and continuous processing for preparing CSNZVIF.
Carbon-supported zerovalent iron Ferric alginate fiber Wet spinning Nanoscale thermal treatment
Qingshan Kong Chunxiang Guo Bingbing Wang Quan Ji Yanzhi Xia
Advanced Fibers & Modern Textile Cultivation Base for State Key Lab, Qingdao University, Qingdao2660 Advanced Fibers & Modern Textile Cultivation Base for State Key Lab, Qingdao University, Qingdao 266
国际会议
11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)
青岛
英文
349-352
2010-09-25（万方平台首次上网日期，不代表论文的发表时间）