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Preparation of metal oxide doped ACNFs and their adsorption performance for low concentration SO2
  • ISSN号:1674-4799
  • 期刊名称:International Journal of Minerals Metallurgy and M
  • 时间:2013
  • 页码:1102-1106
  • 分类:TQ227.3[化学工程—有机化工] TQ174.14[化学工程—陶瓷工业;化学工程—硅酸盐工业]
  • 作者机构:[1]College of Environmental and Chemical Engineering, Dalian Jiaotong University, Dalian 116028, China
  • 相关基金:the National Natural Science Foundation of China(Nos.50802010,50972021,21076028,and 61078061);the Program for Liaoning Excellent Talents in Universities(No.LJQ2011047)
  • 相关项目:静电纺丝法制备复合纳米活性炭纤维吸附超低浓度SO2的研究
中文摘要:

做的金属氧化物(TiO2 或 Co3O4 ) 激活碳 nanofibers (ACNF ) 被 electrospinning 准备。这些 nanofibers 被 X 光检查衍射(XRD ) 描绘,扫描电子显微镜学(SEM ) ,和 Brunner-Emmett-Teller 方法(赌注) 。ACNF 的平均直径在 200500 nm 的范围以内的结果表演,和长度是几十测微计。特定的表面区域分别地为做 Co3O4 的 ACNF 是为做 TiO2 的 ACNF 和 1238.5 m2/g 的 1146.7 m2/g。electrospun nanofibers 被用于低集中硫二氧化物(SO2 ) 的吸附。结果证明这些 ACNF 的吸附率随 SO2 集中的增加增加了。当 SO2 集中是 1.0 g/mL 时,做 TiO2 的 ACNF 和做 Co3O4 的 ACNF 的吸附率分别地是 66.2% 和 67.1% 。也作为吸附时间增加的吸附率增加了。当吸附时间是 40 min 时,吸附率分别地为做 TiO2 的 ACNF 和做 Co3O4 的 ACNF 是 67.6% 和 69.0% 。吸附率作为温度低于 60 增加了的吸附减少了 ?? 慷 ? 畦瑲敨 ? 湩敶瑳杩瑡摥甠摮牥洠湯 ' 覡变船嬣鏆徼楷掕鼡 X 楴湯 ? 湡 ? 楂 ? ぬ ? 牂 ? ‵慣慴祬瑳攠桸扩瑩摥琠敨栠杩敨瑳愠瑣癩瑩吗?

英文摘要:

Metal oxide (TiO2 or Co304) doped activated carbon nanofibers (ACNFs) were prepared by electrospinning. These nanofibers were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Brunner- Emmett-Teller method (BET). The results show that the average diameters of ACNFs were within the range of 200-500 nm, and the lengths were several tens of micrometers. The specific surface areas were 1146.7 m2/g for TiO2-doped ACNFs and 1238.5 m2/g for Co304-doped ACNFs, respectively. The electrospun nanofibers were used for adsorption of low concentration sulfur dioxide (SO2). The results showed that the adsorption rates of these ACNFs increased with an increase in SO2concentration. When the SO2 concentration was 1.0 μg/mL, the adsorption rates of TiO2-doped ACNFs and Co3Oa-doped ACNFs were 66.2% and 67.1%, respectively. The adsorption rate also increased as the adsorption time increased. When the adsorption time was 40 min, the adsorption rates were 67.6% and 69.0% for TiO2-doped ACNFs and Co304-doped ACNFs, respectively. The adsorption rate decreased as the adsorption temperature increased below 60℃, while it increased as the adsorption temperature increased to more than 60℃.

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期刊信息
  • 《矿物冶金与材料学报:英文版》
  • 主管单位:教育部
  • 主办单位:北京科技大学
  • 主编:杨天钧
  • 地址:北京市海淀区学院路30号
  • 邮编:100083
  • 邮箱:journal@ustb.edu.cn
  • 电话:010-62332875
  • 国际标准刊号:ISSN:1674-4799
  • 国内统一刊号:ISSN:11-5787/TF
  • 邮发代号:
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  • 被引量:113