通过水热法制备了二氧化钛纳米管(TNT),并使用油酸对其表面进行改性。以改性TNT为稳定剂,W/O型Pickering乳液为模板,通过冻融法制备了聚乙烯醇/二氧化钛纳米管(PVA/TNT)复合微球。采用高分辨透射电子显微镜、扫描电子显微镜、X射线能谱仪、热重分析仪等对改性TNT和PVA/TNT复合微球的结构及形貌进行了表征,选择亚甲蓝溶液作为模拟废水,对PVA/TNT复合微球光催化降解性能进行了研究。结果表明:改性TNT能很好地稳定W/O型Pickering乳液,以该乳液为模板可以制备出壳层包覆TNT、内核为聚乙烯醇凝胶的复合微球。PVA/TNT复合微球微球对亚甲蓝具有良好的吸附及光催化降解性能。
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基金资助
安徽省自然科学基金青年基金项目(1508085QB43);安徽省教育厅自然科学研究项目(KJ2016JD15);安徽建筑大学博士基金(K10224)
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