硅藻土/壳聚糖复合物对化工厂废水的净化性能研究  

Purification Performance of Diatomite/chitosan Composite on Wastewater of Chemical Plant

作　　者：耿电光 吴相永 徐辉 刘闫 潘庆才 张昕 徐启杰 GENG Daanguang;WU Xaangyong;XU Hui;LIU Yan;PAN Qingcai;ZHANGXin;XU Qijie(Department of ChemistlT and Pharmaceutieal Engineering,Huanghuai University,Zhumadian 463000,Henan China;Henan Topfond Pharmaceutical Co.Ltd.,Zhumadian 463000,Henan China)

机构地区：[1]黄淮学院化学与制药工程学院,河南驻马店463000 [2]河南省天方药业有限公司,河南驻马店463000

出　　处：《河南科学》2018年第6期842-847,共6页Henan Science

基　　金：河南省科技计划项目(182102311053);河南省青年骨干教师培养计划项目(2017GGJS172);驻马店市科技计划项目(17203;17309)

摘　　要：用表面活性剂十六烷基三甲基溴化铵对硅藻土进行修饰,通过硅烷偶联剂改善硅藻土的片层结构,利用溶液插层法将硅藻土负载于壳聚糖上,制备出硅藻土/壳聚糖复合物.采用热重分析、红外光谱、X-射线衍射和透射电镜对硅藻土/壳聚糖复合物的热性能、形貌、结构进行表征.结果表明,壳聚糖与硅藻土形成了稳定的结构,增加了硅藻土的片层结构,有利于提高复合吸附剂的吸附性能.然后以制备的复合物为吸附剂,研究了温度、时间和用量对亚甲基蓝、大豆油、苯乙酮以及Cr(Ⅵ)的吸附影响.另外,对比了壳聚糖、硅藻土和复合吸附剂对化工厂废液的处理能力.结果显示,复合吸附剂的吸附性能优于单一组分的吸附剂,且复合吸附剂对上述化工厂多组分污染物的最大吸附率分别为90.6%、83.2%、73.1%和86.7%.Diatomite/chitosan complex was prepared readily by solution intercalation. In order to improve the lamellar structure of diatomite,the reaction was needed to join the silane coupling agent in the process. After that,the reaction was prepared the diatomite/chitosan complex. As-fabricated complex was characterized by means of thermal gravimetric analyzer,the infrared spectrum analyzer,X-ray diffraction and transmission electron microscopy and other instruments to get the thermal properties,morphology and structure. It was found that chitosan and a diatomite were formed a stable structure by increasing the lamellar structure of diatomite and improving the adsorption performance of the composite adsorbent. Then,the paper studied and discussed the influence of adsorption performance at different temperatures,times,amount of adsorbent to methylene blue,soybean oil,acetyl benzene and chrome（Ⅵ）. In addition,the paper compared with the processing capacity of chitosan,diatomite and the composite adsorbent to multicomponent chemical pollutants. The results showed that the adsorption performance of the composite adsorbent was superior to the single component of the adsorbent,and the maximum adsorption rate of multicomponent pollutants in the chemical plant was 90.6%,83.2%,73.1% and 86.7% respectively.

关 键 词：壳聚糖 硅藻土 复合吸附剂 

分 类 号：O611.6[理学—无机化学]