高通量葡萄糖酸改性不锈钢网的制备及其油水分离性能研究Preparation of Gluconic Acid Modified High Flux Stainless Steel Mesh and its Oil/Water Separation Performance
杨显猴,王自远,曹静静,王伟,武荣兰
摘要(Abstract):
采用一步法将不锈钢网进行酸刻蚀并吸附葡萄糖酸(GA),成功制备了超亲水-水下超疏油的葡萄糖酸改性不锈钢网(GAG-网)。采用扫描电子显微镜、X-射线光电子能谱仪对GAG-不锈钢网表面形貌和化学组分进行表征,结果表明GA成功地吸附在了不锈钢网上和网表面成功构造微纳米粗糙结构。采用接触角测量仪对其表面进行了润湿性测试,在空气中,水滴在其表面接触角为0°;在水下,油滴在其表面接触角大于150°。GAG-网能够有效地分离多种油水混合物,分离效率均达到98%以上,分离通量达140 L·(m~2·s)~(-1);分离正己烷/水的混合物40次后仍具有99.5%以上的分离效率;在腐蚀性环境中也具有优异的分离能力。该方法简单绿色,制备过程无需任何电器和机械设备。制备的GAG-网油水分离性能优异,在处理油水混合物方面具有潜在的应用前景。
关键词(KeyWords): 油水分离;超亲水/水下超疏油;不锈钢网;高通量;耐腐蚀;D-葡萄糖酸
基金项目(Foundation): 新疆维吾尔自治区自然科学基金(2016D01C037)
作者(Author): 杨显猴,王自远,曹静静,王伟,武荣兰
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