生物质基官能化碳纳米管的制备与表征
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摘要
采用AAO模板法制备生物质基碳纳米管.通过"H_2SO_4+HNO_3"混合酸回流氧化,制得官能化生物质基碳纳米管.运用FT-IR、SEM、Raman等测试技术对新型碳材料的结构和形貌进行表征.实验结果表明,在水浴温度80℃,"H_2SO_4+HNO_3"混合酸Ⅰ条件下回流2h,得到的产品羧基含量较多,碳纳米管形貌破坏较少.混合酸氧化工艺可以在碳纳米管表面引入羧基、羰基和羟基等官能团,优化碳纳米管的功能特性,拓展其在催化材料中的应用.
Biomass-based carbon nanotubes were prepared by AAO(Anodic Aluminum Oxide)template method.Functionalized biomass-based carbon nanotubes were prepared by reflux oxidation of"H_2SO_4+HNO_3"mixed acid.The structure and morphology of the new carbon materials were characterized by FT-IR,SEM,Raman and other testing techniques.The experimental results show that under the condition of water bath temperature of 80℃and"H_2SO_4+HNO_3"mixed acid for 2 h,the obtained product has more carboxyl content and less damage of carbon nanotube morphology.The mixed acid oxidation process can introduce functional groups such as carboxyl groups,carbonyl groups and hydroxyl groups on the surface of carbon nanotubes,optimizing the functional properties of carbon nanotubes,and expanding its application in catalytic materials.
Biomass-based carbon nanotubes were prepared by AAO(Anodic Aluminum Oxide)template method.Functionalized biomass-based carbon nanotubes were prepared by reflux oxidation of"H_2SO_4+HNO_3"mixed acid.The structure and morphology of the new carbon materials were characterized by FT-IR,SEM,Raman and other testing techniques.The experimental results show that under the condition of water bath temperature of 80℃and"H_2SO_4+HNO_3"mixed acid for 2 h,the obtained product has more carboxyl content and less damage of carbon nanotube morphology.The mixed acid oxidation process can introduce functional groups such as carboxyl groups,carbonyl groups and hydroxyl groups on the surface of carbon nanotubes,optimizing the functional properties of carbon nanotubes,and expanding its application in catalytic materials.
引文
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[4]HERREROLATORRE C,LVAREZMéNDEZ J,BARCIELAGARCíA J,et al.Characterization of carbon nanotubes and analytical methods for their determination in environmental and biological samples:A review[J].Analytica Chimica Acta,2015,853(1):77-94.
[5]FENG X,WANG C,CUI R,et al.The synthesis of nitrogen-doped carbon nanotubes/gold composites and their application to the detection of thioridazine[J].Journal of Solid State Electrochemistry,2012,16(8):2691-2698.
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[7]SUBRAMANIAN N,KOO B,VENKATESAN K R,et al.Computational analysis for the interface mechanics of carbon fibers with radially-grown carbon nanotubes[J].Carbon,2018,134:123-133.
[8]EMILIANO M P,JUAN A D,POUILLON Y,et al.The mechanical bond on carbon nanotubes:diameter-selective functionalization and effects on physical properties[J].Nanoscale,2016,8(17):9254-9264.
[9]MIRANDA D,FIGUEIREDO L,PASTROLIN L J,et al.Characterization of polystyrene nanocomposites containing nanoparticles of pseudoboehmite obtained by sol-gel process[J].Journal of Nano Research,2017,47:96-105.
[10]YADAV V B,GADI R,KALRA S.Synthesis and characterization of novel nanocomposite by using kaolinite and carbon annotates[J].Applied Clay Science,2018,155:30-36.
[11]MOKARIAN Z,RASULI R,ABEDINI Y.Facile synthesis of stable superhydrophobic nanocomposite based on multiwalled carbon annotates[J].Applied Surface Science,2016,369:567-575.
[12]GHIADI B,BANIADAM M,MORTEZA M.Rapid,one-pot synthesis of highly-soluble carbon nanotubes functionalized by L-argentine[J].Russian Journal of Physical Chemistry A,Focus on Chemistry,2013,87(4):649-653.
[13]HUANG J,ZANG J,ZHAO Y,et al.One-step synthesis of nanocrystalline TiO2-coated car-bon nanotube support for Pt electrocatalyst in direct methanol fuel cell[J].Materials Letters,2014,137:335-338.
[14]KAR T,SCHEINER S,PATNAIK S S,et al.IR characterization of tip-functionalized single-wall carbon annotates[J].JPhys Chem C,2017,114(49):20955-20961.
[15]CLANCY A J,MELBOURNE J,SHAFFER M S.A one-step route to solubilised,purified or functionalised single-walled carbon nanotubes[J].Journal of Materials Chemistry a Materials f-or Energy&Sustainability,2015,3(32):16708-16715.