黄豆的多孔结构及对亚甲基蓝染料的去除性能研究

材料导报

2021, Vol. 35

Issue (z2): 520-524

高分子与聚合物基复合材料

黄豆的多孔结构及对亚甲基蓝染料的去除性能研究

黄金花, 焦志伟, 陈先义, 赵小波, 姚英邦, 陶涛, 梁波, 鲁圣国

广东工业大学材料与能源学院,广东省智能材料和能量转化器件工程技术研究中心,广东省功能软凝聚态物质重点实验室,广州 510006

Study on the Porous Structure of Soybean and Its Removal Characteristics on Methylene Blue Dye

HUANG Jinhua, JIAO Zhiwei, CHEN Xianyi, ZHAO Xiaobo, YAO Yingbang, TAO Tao, LIANG Bo, LU Shengguo

Guangdong Provincial Research Center on Smart Materials and Energy Conversion Devices, Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Material and Energy, Guangdong University of Technology, Guangzhou 510006, China

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摘要黄豆是我国的原生植物,距今已有3 000年的历史,其对人体的药用价值也已被发现,但是对其结构的认识非常有限。通过对黄豆在一定温度下进行热处理,获得了多孔结构,并利用场发射扫描电子显微镜(FESEM)对多孔结构进行了表征,并对孔尺寸分布进行了统计分析。结果表明,所制得的多孔结构的平均孔径分布在(0.21±0.05)~(0.43±0.08) μm;经过与金属溶液等的对比实验,发现样品对亚甲基蓝染料水溶液具有吸附能力。此外,还研究了初始pH值和初始浓度对吸附的影响以及吸附的动力学过程、吸附等温线。观察到pH值在弱酸至碱性范围时样品的去除效果很好。实验表明吸附过程中在接触的最初15 min内该材料对染料的去除率在80%以上。此多孔材料对人类友好且方便易得、成本低廉,同时吸附速率快、吸附能力强,是一种非常有前景的环境净化材料。

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	黄金花
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	陶涛
	梁波
	鲁圣国

关键词: 黄豆多孔结构亚甲基蓝吸附性能动力学

Abstract: Soybean is a kind of prophyta originated in our country. It has over 3 000 years of history as a food. Its medical functions have been disco-vered for many years, but the understanding to its inner structure has rarely been investigated thus far. As a major crop in the world, soybeans have many biological effects. The previous investigations on soybeans mostly focused on the biological characteristics, but less on their microstructures. In this paper, through a facile heat treatment of soybeans an elevated temperature, it was found that soybeans have a porous structure. A field emission scanning electron microscope (FESEM) was used to characterize the porous structure and the pore size distribution. The results indicate that the average porous size procured by the treatment at 60—120 ℃ for 5 h is from (0.21±0.05) μm to (0.43±0.08) μm. It was further observed that the obtained porous soybeans have a adsorption capacity for methylene blue dye. The influence of initial pH value and concentration on the adsorption was investigated and the adsorption kinetics was illustrated as a function of time. It was also observed that under weak acidic and weak alkali conditions, the removal rate to remove methylene blue dye is above 80% in the starting 15 min. The adsorption behavior can be well fitted using the quasi-second-order kinetic model. Porous soybean demonstrates the advantages of being friendly to humans, being easy to obtain, low cost, high adsorption capacity, etc., thus it will be a promising environmental cleaning material.

Key words: soybean porous structure methylene blue adsorption characteristics adsorption kinetics

发布日期: 2021-12-09

ZTFLH:

X52

基金资助: 国家自然科学基金(51372042;51872053);国家自然科学基金-广东省联合基金(U1501246);广东省自然科学基金重大基础研究培育项目(2015A030308004);广东省教育厅重大基础研究培育项目(2014GKXM039);东莞市核心技术攻关前沿项目(2019622101006)和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重点项目(XHT2020-011)

通讯作者: sglu@gdut.edu.cn

作者简介: 黄金花,2018年6月毕业于广东工业大学,2018—2021年于广东工业大学攻读工学硕士学位。她于2019年12月至2020年12月在东莞华南设计创新院联合培训。她的主要研究方向是生物多孔材料的结构及其功能特性。
鲁圣国,广东工业大学教授,博士研究生导师。1988年硕士研究生毕业于华中科技大学。1993年博士毕业于西安交通大学。1998—2002年在香港理工大学应用物理系和材料研究中心工作,任副研究员。2003—2007年在香港城市大学物理和材料科学系工作,任研究员。2007—2012年在美国宾州州立大学材料研究所和电气工程系、美国战略高分子科学公司工作,任博士后研究员、副研究员、高级副研究员和资深科学家顾问。2012 年至今作为广东工业大学“百人计划”特聘教授人才引进。在国内外学术期刊上发表论文200余篇,授权美国专利1项,授权中国专利17项,公开中国专利45项。其主要研究兴趣包括但不限于,纳米粉体和纳米复合材料、多孔材料、多层厚膜陶瓷、铁电聚合物及软物质、铁电压电和介电陶瓷电容器、驱动器、储能材料和器件、电卡致冷材料和器件以及柔性传感器。

引用本文:

黄金花, 焦志伟, 陈先义, 赵小波, 姚英邦, 陶涛, 梁波, 鲁圣国. 黄豆的多孔结构及对亚甲基蓝染料的去除性能研究[J]. 材料导报, 2021, 35(z2): 520-524.
HUANG Jinhua, JIAO Zhiwei, CHEN Xianyi, ZHAO Xiaobo, YAO Yingbang, TAO Tao, LIANG Bo, LU Shengguo. Study on the Porous Structure of Soybean and Its Removal Characteristics on Methylene Blue Dye. Materials Reports, 2021, 35(z2): 520-524.

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http://www.mater-rep.com/CN/ 或 http://www.mater-rep.com/CN/Y2021/V35/Iz2/520

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