| 改性膨润土吸附剂的制备及其吸附性能的研究 |
| |
| 引用本文： | 刘长风,邵红,赵阳. 改性膨润土吸附剂的制备及其吸附性能的研究[J]. 中国非金属矿工业导刊, 2012, 0(1): 24-26,32 |
| |
| 作者姓名： | 刘长风 邵红 赵阳 |
| |
| 作者单位： | 1. 沈阳化工大学环境与生物工程学院,辽宁沈阳,110142
2. 东北制药集团有限公司,辽宁沈阳,110026 |
| |
| 基金项目： | 辽宁省自然科学基金(20061005)资助 |
| |
| 摘 要： | 本文以钠基膨润土为主要原料,选用壳聚糖作为改性剂,通过微波辐射进行改性,制备出壳聚糖改性膨润土吸附剂,并研究了其对Cr(VI)的吸附性能和吸附工艺条件。结果表明,吸附剂对Cr(VI)具有较好的吸附性能,吸附的适宜工艺条件是:pH值为5～6,吸附时间为30min,吸附剂用量为12.0g/L。与单一的膨润土或壳聚糖相比,该吸附剂对Cr(VI)离子的吸附速度快、吸附能力强,并且具有成本低、应用范围广的优点,Cr(VI)的去除率可达到85%。
|
| 关 键 词： | 膨润土 壳聚糖 微波改性 吸附剂 铬离子 |
Preparation of Chitosan Modified Bentonite Adsorbent and Study of Its Adsorption Properties |
| |
| LIU Chang-feng , SHAO Hong , ZHAO Yang. Preparation of Chitosan Modified Bentonite Adsorbent and Study of Its Adsorption Properties[J]. China Non-Metallic Mining Industry Herald, 2012, 0(1): 24-26,32 |
| |
| Authors: | LIU Chang-feng SHAO Hong ZHAO Yang |
| |
| Affiliation: | 1.School of Resources & Civil Engineering,Shenyang University of Chemical Technology,Shenyang 110142,China;2.Department of Quality Inspection,NEPG,Shenyang 110026,China) |
| |
| Abstract: | In this paper,with the Na-base bentonite as raw material and chitosan as modifier,through microwave radiation,a new adsorbent which was made from bentonite modified by chitosan was prepared;and its adsorption to Cr(VI) and appropriate conditions for the Cr(VI)adsorption were discussed.The results showed that appropriate conditions for the Cr(VI)adsorption process are that the pH value is 5~6,the adsorption contact time is about 30min,the dosage of the adsorbent is 12.0g/L.Compared with the single bentonite or chitosan,the modified bentonite adsorbent has a faster adsorption speed and better adsorption,moreover,it has the advantages of low costs,broad application scope,Cr(VI) removal rate can reach 85%. |
| |
| Keywords: | bentonite chitosan microwave modification adsorbent chromium ion(VI) |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
