广东工业大学学报 ›› 2022, Vol. 39 ›› Issue (06): 107-113.doi: 10.12052/gdutxb.210042

• 综合研究 • 上一篇    下一篇

多孔黄豆对中性红染料及重金属的去除性能研究

黄金花1,2, 鲁圣国1,2   

  1. 1. 广东工业大学 材料与能源学院, 广东 广州 510006;
    2. 广东省智能材料和能量转化器件工程技术研究中心, 广东 广州 510000
  • 收稿日期:2021-03-10 出版日期:2022-11-10 发布日期:2022-11-25
  • 通信作者: 鲁圣国(1963-) ，男，教授，博士生导师，主要研究方向为电卡制冷器件、储能电容器以及微电子材料和元器件，E-mail：sglu@gdut.edu.cn
  • 作者简介:黄金花(1994-) ，女，硕士研究生，主要研究方向为生物多孔材料性能
  • 基金资助:
    国家自然科学基金资助项目(51872053，51372042) ；国家自然科学基金广东省联合基金资助项目(U1501246)；广东省自然科学基金资助重大基础研究培育项目(2015A030308004)；东莞市核心技术攻关前沿项目(2019622101006)；先进能源科学与技术广东省实验室佛山分中心佛山仙湖实验室开放基金资助重点项目(XHT2020-011)

Porous Structure of Soybean and its Adsorption Characteristics on Neutral Red Dye and Heavy Metal Ions

Huang Jin-hua1,2, Lu Sheng-guo1,2   

  1. 1. School of Material and Energy, Guangdong University of Technology, Guangzhou 510006, China;
    2. Guangdong Provincial Research Center on Smart Materials and Energy Conversion Devices and Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangzhou 510000, China
  • Received:2021-03-10 Online:2022-11-10 Published:2022-11-25

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摘要： 在一定温度下对黄豆进行热处理使其呈现有序孔结构，并运用静态吸附法和傅里叶变换红外(Fourier Transform Infrared，FTIR) 光谱研究其对中性红(Neutral Red，NR) 染料和重金属离子的去除性能。本文主要研究了溶液初始物质的量浓度对吸附效果的影响、溶液初始pH值对吸附效果的影响和吸附的动力学过程。实验表明：在弱酸至弱碱性范围内，样品对中性红的吸附效果较好，并且在pH=7时最佳；溶液初始物质的量浓度也是影响吸附量的一个重要因素；在吸附过程中，吸附剂和吸附质接触的最初20 min内去除率在80%以上。通过拟合发现黄豆对中性红染料的吸附行为更加符合准二级动力学模型。此材料成本低廉、方便易得、对人类友好，同时吸附性能好，是一种有应用前景的环境净化材料。

关键词: 黄豆, 中性红, 吸附性能, 吸附动力学

Abstract: Through mild heat treatment of soybeans at an elevated temperature, soybeans show an ordered porous structure, then the static adsorption method and FTIR analysis are used to study the adsorption of neutral red dyes and heavy metal ions. The research contents mainly include: the influence of initial concentration and the initial pH value on the adsorption, and the adsorption kinetic process. It is observed that in the range of acid to weak alkali, the removal rate to neutral red dye is better than other pH value range, and best when the pH is equal to 7. The initial concentration on the adsorption is also an important factor affecting the removal rate and adsorption capacity. At the same time, the removal rate of the adsorbent and the adsorbate in the first 20 minutes of contact is above 80% during the adsorption process. By fitting, the adsorption behavior is more consistent with the quasi-second-order kinetic model. Porous soybean is not only friendly to human beings, but also demonstrates the advantages of high adsorption capacity and low cost. Therefore, it will be a promising environmental cleaning material .

Key words: soybean, neutral red, adsorption characteristics, adsorption kinetics

中图分类号: 

  • X52
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