无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2025, Vol. 57 ›› Issue (12): 83-91.doi: 10.19964/j.issn.1006-4990.2024-0659

• 环境·健康·安全 • 上一篇    下一篇

螺壳生物质基纳米碳酸钙的制备及其形貌研究

唐紫玲1(), 梁美娜1,2,3(), 唐宏杰1, 彭宇轩1, 江卓诚1, 王敦球1,2,3, 李巨豪1   

  1. 1.桂林理工大学环境科学与工程学院,广西 桂林 541004
    2.广西环境污染控制理论与技术重点实验室,广西 桂林 541004
    3.广西岩溶地区水污染控制与用水安全保障协同创新中心,广西 桂林 541004
  • 收稿日期:2024-12-10 出版日期:2025-12-10 发布日期:2025-05-13
  • 通讯作者: 梁美娜(1974— ),女,研究员,研究方向为环境功能材料的制备及其应用研究;E-mail:liangmeinaa@163.com
  • 作者简介:唐紫玲(1999— ),女,硕士,研究方向为固废资源化及土壤重金属修复研究;E-mail:tangziling126@163.com
  • 基金资助:
    广西科技计划项目(桂科AB25069118);广西科技计划项目(桂科AD25069074)

Study on preparation and morphology of nano-calcium carbonate based on snail shell biomass

TANG Ziling1(), LIANG Meina1,2,3(), TANG Hongjie1, PENG Yuxuan1, JIANG Zhuocheng1, WANG Dunqiu1,2,3, LI Juhao1   

  1. 1. College of Environmental Science and Engineering,Guilin University of Technology,Guilin 541004,China
    2. Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology,Guilin University of Technology,Guilin 541004,China
    3. Guangxi Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area,Guilin University of Technology,Guilin 541004,China
  • Received:2024-12-10 Published:2025-12-10 Online:2025-05-13

摘要:

以广西北部湾海域废弃锥螺壳为原料,通过超声辅助-鼓泡碳化法,甘氨酸(Gly)和十二烷基硫酸钠(SDS)为晶型诱导剂,成功制备多形貌的纳米CaCO3,并采用扫描电子显微镜(SEM)、X射线衍射仪(XRD)、傅里叶红外光谱仪(FT-IR)、拉曼光谱仪(Raman)和热重分析仪(TG)表征产物特性。研究表明:Gly调控下,CaCO3形貌主要为立方状;SDS调控下,CaCO3形貌主要为球状;在Gly和SDS复合调控下,CaCO3形貌主要为纺锤状。考察Gly/SDS单一碳化体系和复合碳化体系对纳米CaCO3晶体粒径、晶型和热稳定性的影响,分析Gly/SDS作用的反应机理。结果表明:螺壳中的CaCO3为文石晶型,其质量分数为95.46%;添加SDS质量浓度为3.0 mg/mL(S3.0)所制备的球状纳米CaCO3粒径最小,平均粒径为60.80 nm;Gly/SDS单一碳化体系和复合碳化体系的产物均为方解石晶型CaCO3;Gly调控制备的CaCO3热稳定性优于其他形貌产物。

关键词: 纳米碳酸钙, 甘氨酸, 十二烷基硫酸钠, 碳化法, 生物质

Abstract:

By employing discarded spire snail shells from the Beibu Gulf in Guangxi as raw materials,multi-morphology nano-calcium carbonate(nano-CaCO3) was successfully synthesized via an ultrasonic-assisted bubble carbonization method.Glycine(Gly) and sodium dodecyl sulfate(SDS) were used as crystal morphology inducers.The synthesized products were characterized using SEM,XRD,FT-IR,Raman spectroscopy,and TG.The results demonstrated that Gly primarily resulted in cubic CaCO3 particles,while SDS predominantly induced spherical CaCO3.When both Gly and SDS were combined,the CaCO3 morphology was mainly spindle-shaped.This study investigated the effects of individual Gly/SDS carbonization systems and the composite carbonization system on the crystal size,morphology,and thermal stability of nano-CaCO3,proposing a reaction mechanism for Gly/SDS.The analysis indicated that the CaCO3 in the shells exhibited a wurtzite crystal structure with a purity of 95.46%.Spherical nano-CaCO3 prepared at a mass concentration of 3.0 mg/mL had the smallest average particle size of 60.80 nm.Both the individual Gly/SDS carbonization system and the composite system produced calcite-type CaCO3 crystals.The thermal stability of CaCO3 synthesized under Gly regulation was superior to that of other morphologies.

Key words: nano-calcium carbonate, glycine, sodium dodecyl sulfate, carbonization method, biomass

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