| 尺寸可控的固相萃取吸附剂Ni/Al LDH的制备 |
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| 引用本文： | 栾玲玉,程传格,尹西翔,王利红,李剑,孙德军.尺寸可控的固相萃取吸附剂Ni/Al LDH的制备[J].山东科学,2014,27(1):45-50. |
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| 作者姓名： | 栾玲玉 程传格 尹西翔 王利红 李剑 孙德军 |
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| 作者单位： | 1.山东省分析测试中心，山东 济南 250014；
2.济南市环境监测中心站，山东 济南 250012；
3.山东大学胶体与界面化学教育部重点实验室，山东 济南 250100 |
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| 基金项目： | 山东省科学院博士基金（2012-12） |
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| 摘 要： | 采用非稳态共沉淀方法制备了无定形的Ni/Al LDH纳米粒子,水热处理过程促进了无定形沉淀的结晶,从而得到稳定的六边片状Ni/Al LDH纳米粒子胶体分散体系。通过调整胶溶温度和胶溶时间控制Ni/Al LDH纳米粒子的形貌和尺寸,对比不同胶溶温度和胶溶时间下得到的样品,得出制备Ni/Al LDH纳米粒子的最佳条件为胶溶温度130℃,胶溶时间24 h。由于Ni/Al LDH纳米粒子独特的带电及结构性质,具有较好的吸附性能,可将其制作成固相萃取柱,实现纳米材料与样品前处理技术的有机结合,优化样品前处理技术。
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| 关 键 词： | 固相萃取吸附剂 层状双氢氧化物 非稳态共沉淀 胶溶 |
| 收稿时间： | 2013-08-18 |
Preparation of size controlled solid phase extraction adsorbent Ni/Al LDH |
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| LUAN Ling-yu,CHENG Chuan-ge,YIN Xi-xiang,WANG Li-hong,LI Jian,SUN De-jun.Preparation of size controlled solid phase extraction adsorbent Ni/Al LDH[J].Shandong Science,2014,27(1):45-50. |
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| Authors: | LUAN Ling-yu CHENG Chuan-ge YIN Xi-xiang WANG Li-hong LI Jian SUN De-jun |
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| Institution: | 1. Shandong Analysis and Test Center, Jinan 250014, China;
2. Jinan Environment Monitoring Center, Jinan 250012, China;
3. Key Laboratory for Colloid and Interface Chemistry of the Ministry of Education, Shandong University, Jinan 250100, China |
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| Abstract: | We prepared Ni/Al layered double hydroxide （LDH） nanoparticles by non-steady co-precipitation.Water heat treatment process accelerated the crystal of amorphous precipitation.We acquired stable hexagonal sheet Ni/Al LDH nanoparticle colloidal suspensions.We controlled the shape and size of Ni/Al LDH nanoparticles by adjusting peptization temperature and time.We further obtained the optimal peptization temperature of 130 ℃ and peptization time of 24 h for the preparation of Ni/Al LDH nanoparticles.Ni/Al LDH nanoparticles have better adsorption property because of their unique properties of net positive charge and structure and can be manufacured as a solid phase extraction adsorbent.This realizes the combination of nanocomposites with sample pretreatment technology and optimizes sample preprocessing technology. |
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| Keywords: | solid phase extraction adsorbent layered double hydroxides （LDHs） non-steady co-precipitation peptization |
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