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周桂林

教授    硕士生导师

个人信息 更多+
  • 教师英文名称: Guilin Zhou
  • 教师拼音名称: ZGL
  • 电子邮箱:
  • 入职时间: 2006-07-03
  • 所在单位: 环境与资源学院
  • 学历: 博士研究生毕业
  • 办公地点: 新北区(科创园)
  • 性别: 男
  • 学位: 博士
  • 在职信息: 在岗
  • 主要任职: 催化理论与应用技术重庆高校市级重点实验室主任
  • 其他任职: 九三学社重庆市南岸区委员会副主委

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论文成果

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CuO-modified activated carbon for the improvement of toluene removal in air

发布时间:2024-12-01
点击次数:

影响因子:
5.565
DOI码:
10.1016/j.jes.2019.07.001
所属单位:
重庆工商大学
教研室:
材料科学与工程系
发表刊物:
Journal of Environmental Sciences
项目来源:
重庆市教育委员会
关键字:
CuO modified activated carbon;Composite adsorbents;CuO species;Toluene;Adsorptive removal
摘要:
We used an impregnation method to prepare CuO/AC (activated carbon) composite materials of different CuO content and characterized them via scanning electron microscope (SEM), Brunauer–Emmett–Teller (BET), and Fourier transform infrared spectroscopy (FT-IR). The effect of CuO content on toluene adsorption/desorption was evaluated. We explored the reusability of AC and AC03 (CuO modified AC with CuO loading 0.3 wt.%) adsorbents via toluene adsorption/desorption cycle testing. We used quasi-first- and quasi-second-order models, the Bangham model, and the Weber–Morris model to fit the toluene adsorption data. The introduction of CuO species evidently improved the adsorption performance of activated carbon toward toluene. The CuO content markedly affected the specific surface area, CuO dispersal, the numbers of oxygen-containing functional groups on the surface, and adsorption performance of the prepared composite adsorbents. Low CuO content was not favorable for the formation of active adsorption sites, while high content greatly reduced the specific surface area, and even covered active adsorption sites. The toluene adsorption performance varied in the order AC03 > AC02 > AC05 > AC08 > AC01 (AC03, AC02, AC05, AC08 and AC01 are CuO modifying AC with CuO loading 0.3, 0.2, 0.5 0.8 and 0.1 wt.%, respectively). The breakthrough time and toluene adsorption capacity of the AC03 composite adsorbent were 94 min and 701.8 mg/g, respectively, and the recycling efficiency was 92.8% after thermal desorption at 200°C. The adsorption process was best described by the Bangham model and adsorption could be divided into three stages.
第一作者:
Bingman Lei
合写作者:
Biyan Liu,Huijun Zhang,Hongmei Xie
论文类型:
源刊论文
通讯作者:
Guilin Zhou
学科门类:
工学
文献类型:
Journal Article
卷号:
88
页面范围:
122–132
是否译文:
发表时间:
2020-02-01
收录刊物:
SCI
发布期刊链接:
https://doi.org/10.1016/j.jes.2019.07.001