热活化凹凸棒石/壳聚糖复合物的制备及其对棕榈油脱色性能研究 | |
Department | 环境材料与生态化学研究发展中心 |
Tian GY (田光燕); Mu B (牟斌); Kang YR (康玉茹); Wang WB (王文波); Wang AQ (王爱勤); 王爱勤 | |
2014-07 | |
Conference Name | 第九届中国凹土高层论坛 |
Source Publication | 凹土之光-第九届中国凹土高层论坛论文集 |
Funding Organization | 江苏省盱眙县人民政府;江苏省科技厅;中国科学院南京分院 |
Pages | 154-161 |
Conference Date | 2014-7-18~2014-7-20 |
Conference Place | 江苏盱眙 |
Publication Place | 江苏盱眙 |
Abstract | 本文以壳聚糖(CTS)和凹凸棒石(APT)黏土为原料,通过原位负载和热活化处理制备出表面负载炭的凹凸棒石基复合吸附剂,并用于棕榈油脱色。利用FTIR、XRD、TGA、TEM、BET等手段表征了复合吸附剂的结构,研究了煅烧温度对复合吸附剂结构及其脱色性能的影响。结果表明,热活化凹凸棒石/壳聚糖(APT/CTS)复合物的比表面积、孔结构以及形貌等随煅烧温度变化而变化,在温度为280℃时有炭形成,有效增大了吸附孔径及活性位点的数目。经复合吸附剂脱色后,棕榈油的色值、过氧化物值以及磷脂的量显著降低。 |
Other Abstract | The attapulgite-based composite adsorbents with moderate loading of carbon was prepared by the in-situ adherence of chitosan (CTS) onto attapulgite (APT) and thermal activation using CTS and APT as raw materials, and used for the bleaching of palm oil. The effects of activation temperature on the structure and bleaching properties of the composite adsorbent were investigated by FTIR, XRD, TGA, TEM and BET techniques. It could be found that, after being thermally treated, the adsorbed chitosan was transformed into carbon species. The introduction of carbon species could enlarge the pore size of the composites and increase the new active adsorptive sites. The Red value and the content of peroxide and phospholipid were greatly reduced after being decolored by the as-prepared composite absorbents. |
Keyword | 凹凸棒石 壳聚糖 热活化 棕榈油 脱色 |
Subject Area | 功能复合材料 |
URL | 查看原文 |
Funding Project | 功能复合材料组 |
Language | 中文 |
Document Type | 会议论文 |
Identifier | http://ir.licp.cn/handle/362003/18806 |
Collection | 环境材料与生态化学研究发展中心 |
Corresponding Author | 王爱勤 |
Affiliation | 中国科学院兰州化学物理研究所盱眙凹土应用技术研发中心 |
First Author Affilication | Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences |
Recommended Citation GB/T 7714 | Tian GY (田光燕),Mu B (牟斌),Kang YR (康玉茹),等. 热活化凹凸棒石/壳聚糖复合物的制备及其对棕榈油脱色性能研究[C]. 江苏盱眙,2014:154-161. |
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