Preparation of mono-dispersed MgO nanoparticles by using direct deposition in paraffin emulsion system

HE Xing; TAN Shiyu; ZHENG Xiaogang; DONG Lichun; LI Shaobo; CHEN Hongmei; LUO Ziping

doi:10.11949/j.issn.0438-1157.20141022

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Preparation of mono-dispersed MgO nanoparticles by using direct deposition in paraffin emulsion system

更新时间：2025-12-10

- Preparation of mono-dispersed MgO nanoparticles by using direct deposition in paraffin emulsion system
- CIESC Journal Issue 2, Pages: 843-847(2015)
- 作者机构：
  
  重庆大学化学化工学院,重庆,400044
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20141022
  CLC： Q132.2
- Online First：05 February 2015，
  
  Published：05 February 2015
- 稿件说明：
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HE Xing, TAN Shiyu, ZHENG Xiaogang, et al. Preparation of mono-dispersed MgO nanoparticles by using direct deposition in paraffin emulsion system[J]. CIESC Journal, 2015, (2): 843-847.
DOI：

HE Xing, TAN Shiyu, ZHENG Xiaogang, et al. Preparation of mono-dispersed MgO nanoparticles by using direct deposition in paraffin emulsion system[J]. CIESC Journal, 2015, (2): 843-847. DOI： 10.11949/j.issn.0438-1157.20141022.

摘要

MgCl2·6H2O和Na2CO3在石蜡乳液中直接沉淀出碱式碳酸镁/石蜡前驱体

该前驱体在600℃条件下焙烧后获得MgO纳米粉体。采用TG-DTA、FTIR、XRD、BET和FESEM等手段对MgO粉体进行表征分析

并研究焙烧温度和物料比对纳米MgO的粒径及形貌的影响。结果表明

在最佳工艺条件下

石蜡乳液体系中能够得到分散性好、晶粒呈六边形、颗粒均匀、平均粒径约60 nm和比表面积132.54 m2·g-1的纳米MgO。其最佳工艺条件为:MgCl2·6H2O溶液浓度0.6 mol·L-1、Na2CO3溶液浓度0.6 mol·L-1、反应时间0.5 h、焙烧温度600℃和焙烧时间3 h。

Abstract

MgO nanoparticles were prepared by using a direct deposition method

in which

the precursor

alkaline magnesium carbonate/paraffin

was firstly obtained by direct precipitation of the mixture of MgCl2·6H2O and Na2CO3 in paraffin emulsion

and then calcined at 600℃. The nanoparticles were characterized by using TG-DTA

FTIR

XRD

BET and FESEM. Under the optimum conditions

the as-prepared MgO nanoparticles were hexagonal crystals with a uniform size of around 60 nm and a specific surface area of 132.54 m2·g-1. The optimum preparation conditions were: MgCl2·6H2O concentration

0.6 mol·L-1; Na2CO3 concentration

0.6 mol·L-1; reaction time

0.5 h; calcination temperature

600℃

and calcination time

3 h.

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