纳米蒙脱土改性海藻酸钠疏水复合气凝胶的制备及其油水分离应用  

Preparation of Nano-montmorillonite Modified Sodium Alginate Hydrophobic Composite Aerogel and Its Application in Oil-Water Separation

作　　者：房少康 王鹏祥 李慧荣 冯世达 于跃 FANG Shao-kang;WANG Peng-xiang;LI Hui-rong;FENG Shi-da;YU Yue(College of Textile and Material Engineering,Dalian Polytechnic University,Dalian 116034,China)

机构地区：[1]大连工业大学纺织与材料工程学院,辽宁大连116034

出　　处：《塑料科技》2023年第9期74-78,共5页Plastics Science and Technology

摘　　要：以海藻酸钠(SA)和纳米蒙脱土(Na-MMT)为原料,通过离子交联、冷冻干燥和化学气相沉积(CVD)等三步合成工艺,制备了可用作油水分离吸附材料的纳米蒙脱土改性海藻酸钠疏水复合气凝胶(SAMT-M)。通过扫描电子显微镜(SEM)、X射线衍射(XRD)和傅里叶变换红外(FTIR)光谱对SAMT-M气凝胶进行表征。结果表明:Na-MMT均匀分散到SAMT-M气凝胶的海藻酸盐基质中。SAMT-M气凝胶对各种有机溶剂吸附量为16.76~34.25 g/g。SAMT-M气凝胶可以作为环保、低成本、稳定的生物可降解的废水浮油吸附材料,为环境修复提供一种可持续的方案。Using sodium alginate(SA)and nano-montmorillonite(Na-MMT)as raw materials,a sodium alginate-montmorillonite hydrophobic composite aerogel(SAMT-M)was prepared by a three-step synthesis process of ion crosslinking,freeze-drying and chemical vapor deposition(CVD).The SAMT-M aerogels,which can be used as an oil-water separation adsorption material,were characterized by scanning electron microscopy(SEM),X-ray diffraction(XRD)and Fourier transform infrared(FTIR)spectroscopy.The results show that Na-MMT is uniformly dispersed into the alginate matrix in SAMT-M aerogel.The adsorption capacity of SAMT-M aerogel for various organic solvents is 16.76~34.25 g/g.SAMT-M aerogel is an environmentally friendly,low-cost,stable and biodegradable adsorption material for wastewater oil slick,which provides a sustainable solution for environmental remediation.

关 键 词：海藻酸钠 纳米蒙脱土 气凝胶 油水分离 生物可降解 

分 类 号：TB332[一般工业技术—材料科学与工程]