Preparation of polyvinyl alcohol-graphene aerogel by emulsion method and its adsorption on pure organics

Zhenyou WANG; Hui’e LIU; Jiameng ZHU; Shuang CHEN; Anran YU

doi:10.11949/j.issn.0438-1157.20180995

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Preparation of polyvinyl alcohol-graphene aerogel by emulsion method and its adsorption on pure organics

Material science and engineering\, nanotechnology | 更新时间：2026-07-24

- Preparation of polyvinyl alcohol-graphene aerogel by emulsion method and its adsorption on pure organics
- CIESC Journal Vol. 70, Issue 3, Pages: 1152-1162(2019)
- 作者机构：
  
  中国石油大学(华东)重质油国家重点实验室，山东青岛 266580
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20180995
  CLC： TQ 013.2
- Received：07 September 2018，
  
  Revised：2018-12-10，
  
  Online First：24 July 2026，
  
  Published：05 March 2019
- 稿件说明：
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王振有, 刘会娥,朱佳梦，陈爽，于安然. 乳液法制备聚乙烯醇-石墨烯气凝胶及其对纯有机物的吸附[J]. 化工学报, 2019, 70(3): 1152-1162

WANG Zhenyou, LIU Hui’e，ZHU Jiameng, CHEN Shuang, YU Anran. Preparation of polyvinyl alcohol-graphene aerogel by emulsion method and its adsorption on pure organics[J]. CIESC Journal, 2019, 70(3): 1152-1162
王振有, 刘会娥,朱佳梦，陈爽，于安然. 乳液法制备聚乙烯醇-石墨烯气凝胶及其对纯有机物的吸附[J]. 化工学报, 2019, 70(3): 1152-1162 DOI： 10.11949/j.issn.0438-1157.20180995.

WANG Zhenyou, LIU Hui’e，ZHU Jiameng, CHEN Shuang, YU Anran. Preparation of polyvinyl alcohol-graphene aerogel by emulsion method and its adsorption on pure organics[J]. CIESC Journal, 2019, 70(3): 1152-1162 DOI： 10.11949/j.issn.0438-1157.20180995.

摘要

采用氧化石墨烯(GO)稳定的Pickering乳液为软模板，制备聚乙烯醇-石墨烯气凝胶。探究GO浓度、均质转速、油水比、乙二胺(EDA)和聚乙烯醇(PVA)用量等因素对乳液稳定性、粒径分布及气凝胶成型的影响，发现改变乳液配比可控制乳液粒径的大小，进而对气凝胶的密度和孔隙率进行调控。通过SEM、FT-IR、Raman、XRD对最优制备条件下制得的聚乙烯醇-石墨烯气凝胶(PGA)进行表征，可知GO经水热反应后被还原组装形成三维网络气凝胶结构(PGA)且其孔道直径与乳液粒径基本一致。对PGA进行挤压实验发现其具有轴、径双向挤压回弹性，且重复挤压200次以上PGA仍然具良好的弹性。PGA对纯有机物的吸附量最高可达280 g·g

−1

，且每克PGA吸附的有机物的体积为恒定值。

Abstract

A polyvinyl alcohol-graphene aerogel was prepared by using a graphene oxide (GO)-stabilized Pickering emulsion as a soft template. The effects of GO concentration

homogenization speed

oil/water ratio

the amount of ethylenediamine (EDA) and polyvinyl alcohol (PVA) on the stability

particle size distribution of the emulsion and the formation of aerogel were investigated. It was found that the drop size of the emulsion could be controlled by changing the emulsion composition ratio. Then

the density and porosity of the aerogel also could be controlled. The polyvinyl alcohol-graphene aerogel (PGA) prepared under optimal preparation conditions was characterized by SEM

FT-IR

Raman and XRD. It was found that GO had been reduced and assembled to form a three-dimensional network structure (PGA) after the hydrothermal reaction and t

he pore size of the PGA was substantially the same as the particle size of the emulsion. The extrusion test of PGA was carried out and it was observed that PGA had both longitudinal and lateral bidirectional extrusion resilience. And the PGA still had good elasticity after more than 200 times repeated extrusion. The adsorption amount of pure organics by PGA was up to 280 g·g

−1

and the volume of organics adsorbed per gram of PGA was constant value.

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references

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