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生物质化学工程 ›› 2019, Vol. 53 ›› Issue (3): 1-7.doi: 10.3969/j.issn.1673-5854.2019.03.001

• 研究报告 •    下一篇

载银介孔SBA-15吸附剂的制备及其对脂肪酸甲酯的吸附研究

陈博1,2,黄元波1,2,王培燕1,2,刘守庆1,2,宁德鲁3,郑志锋1,2,4,*()   

  1. 1. 林业生物质资源高效利用技术国家地方联合工程研究中心,西南林业大学,云南 昆明 650224
    2. 西南地区林业生物质资源高效利用国家林业和草原局重点实验室;云南省生物质能源国际联合研究中心; 西南林业大学材料科学与工程学院,云南 昆明 650224
    3. 云南省林业科学院经济林木研究所,云南 昆明 650201
    4. 厦门市现代农业生物质高值化技术重点实验室(厦门大学);福建省生物质高值化技术工程研究中心(厦门大学);厦门大学 能源学院,福建 厦门 361102
  • 收稿日期:2018-11-05 出版日期:2019-05-30 发布日期:2019-06-04
  • 通讯作者: 郑志锋 E-mail:zhifeng.zheng@xmu.edu.cn
  • 作者简介:陈博(1992—),男,河南驻马店人,硕士生,主要从事介孔材料的制备及其对脂肪酸的分离研究
  • 基金资助:
    国家重点研发计划项目(2016YFD0600802);厦门大学闽江学者特聘教授科研启动项目;云南省重大科技专项计划(2018ZG003)

Preparation of Silver Ion-loaded Mesoporous SBA-15 Adsorbent and Its Application in Adsorption of Fatty Acids Methyl Ester

Bo CHEN1,2,Yuanbo HUANG1,2,Peiyan WANG1,2,Shouqing LIU1,2,Delu NING3,Zhifeng ZHENG1,2,4,*()   

  1. 1. National-local Joint Engineering Research Center for Highly-Efficient Utilization Technology of Forest Biomass Resources, Southwest Forestry University, Kunming 650224, China
    2. Key Laboratory for Highly-Efficient Utilization of Forest Biomass Resources in the Southwest China, National Forestry and Grassland Administration; Yunnan Provincial International Joint Research Center for Bioenergy; School of Materials Science & Engineering, Southwest Forestry University, Kunming 650224, China
    3. Economic Forest Research Institute, Yunnan Academy of Forestry, Kunming 650201, China
    4. Xiamen Key Laboratory for High-valued Conversion Technology of Agricultural Biomass(Xiamen University); Fujian Provincial Engineering and Research Center of Clean and High-valued Technologies for Biomass; College of Energy, Xiamen University, Xiamen 361102, China
  • Received:2018-11-05 Online:2019-05-30 Published:2019-06-04
  • Contact: Zhifeng ZHENG E-mail:zhifeng.zheng@xmu.edu.cn
  • Supported by:
    国家重点研发计划项目(2016YFD0600802);厦门大学闽江学者特聘教授科研启动项目;云南省重大科技专项计划(2018ZG003)

摘要:

以介孔分子筛SBA-15作为载体,在3-氨基丙基三乙氧基硅烷(APTS)对SBA-15表面修饰的基础上负载银离子制备Ag+-APTS/SBA-15吸附剂,采用氮气吸附-脱附、X射线衍射(XRD)、傅里叶变换红外光谱(FT-IR)、透射电镜(TEM)、扫描电镜-能谱(SEM-EDS)对吸附剂进行表征,并将吸附剂应用于混合脂肪酸甲酯的分离以考察其吸附性能。氮气吸附-脱附、XRD和TEM分析结果可以看出,制备的吸附剂具有规则有序孔道结构;FT-IR数据显示,介孔SBA-15表面被APTS成功修饰;SEM-EDS结果表明,银离子成功负载到载体SBA-15上;对混合脂肪酸甲酯吸附研究表明,该吸附剂对不饱和脂肪酸甲酯(UFAMEs)吸附效果较好,且随着银离子负载量的增加以及UFAMEs双键数的增多,吸附效果增强;当银离子负载量为25%时,吸附剂对亚麻酸甲酯吸附率高达53.47%。

关键词: 3-氨基丙基三乙氧基硅烷, 银离子, 不饱和脂肪酸甲酯

Abstract:

The mesoporous Ag+-APTS/SBA-15 adsorbent was prepared by surface modification of 3-aminopropyltriethoxysilane (APTS) and loading silver ion with the mesoporous molecular sieve SBA-15 as support. The adsorbent was characterized by nitrogen adsorption-desorption, X-ray diffraction(XRD), Fourier transform infrared spectroscopy(FT-IR), transmission electron microscopy(TEM), and scanning electron microscopy-energy spectrum(SEM-EDS). The adsorbent was applied to separating the mixed fatty acid methyl esters to investigate its adsorption properties. The results of nitrogen adsorption-desorption, XRD and TEM showed that the adsorbent had regular ordered pore structure; FT-IR data showed that the surface of mesoporous SBA-15 was successfully modified by APTS; SEM-EDS results showed that silver ion was successfully loaded onto the support SBA-15. The adsorbent had good adsorptive effect on unsaturated fatty acid methyl esters(UFAMEs), with the increase of loading amount of silver ion and the double-bond number of UFAMEs, the adsorption capacity of adsorbent increased gradually for the UFAMEs. When the silver ion loading amount was 25%, the adsorption rate of methyl linolenate on the adsorbent got to 53.47%.

Key words: 3-aminopropyltriethoxysilane, silver ion, unsaturated fatty acid methyl ester

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