Removal of Antimony by FeCl3-Modified Granular-Activated Carbon in Aqueous Solution
Removal of Antimony by FeCl3-Modified Granular-Activated Carbon in Aqueous Solution
复制标题
FeCl3改性颗粒活性炭在水溶液中除锑
DOI：
10.1061/(asce)ee.1943-7870.0000736
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发表时间：
2014-09
影响因子：
2.2
通讯作者：
Li, Cong
中科院分区：
文献类型：
--
作者：
Yu, Ting-chao;Wang, Xiao-hui;Li, Cong
摘要采用不同浓度的FeCl 3溶液对颗粒活性炭进行改性，以提高锑（III）的去除率。采用激光粒度分析仪对改性后的颗粒活性炭（GAC）进行了表征，并进行了比表面积测试。考察了pH值、吸附质浓度、吸附剂用量、吸附时间和温度等因素对静态吸附的影响。结果表明，pH值对吸附效果有很大的影响。FeCl 3改性活性炭对Sb（III）的去除率随吸附温度的升高而升高。结果表明，0.02mol/LFeCl 3和0.05mol/LFeCl 3改性的GAC在pH 7.03和25°C下对Sb（III）的去除率分别为96.49%和99.90%。实验数据符合Freundlich吸附等温式。
AbstractIn this paper, granular activated carbon was modified with different concentrations of ferric chloride (FeCl3) solution to improve the removal efficiency of antimony(III). A laser particle size analyzer analyzed the characteristics of granular-activated carbon (GAC) modified and specific surface area tests (BET). The effect of different factors including pH, adsorbate concentration, adsorbent dosage, contact time and temperature on the static adsorption was investigated. It was found that pH value had a great impact on the adsorption efficiency. The removal of antimony(III) by FeCl3-modified activated carbons increased when the adsorption temperature increased. The results indicated that the removal of antimony(III) [Sb(III)] by GAC modified with 0.02 mol/LFeCl3 and 0.05 mol/LFeCl3 were 96.49 and 99.90%, respectively, under pH 7.03 and 25°C. Moreover, the experimental data obtained fit the Freundlich adsorption isotherm well.
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通讯作者：
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DOI：
10.1504/ijep.2006.011208
发表时间：
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影响因子：
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