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Free-Standing Sodium Titanate Ultralong Nanotube Membrane with Oil-Water Separation, Self-Cleaning, and Photocatalysis Properties.
Nanoscale Research Letters ( IF 5.5 ) Pub Date : 2020-01-28 , DOI: 10.1186/s11671-020-3255-9
Shuling Shen 1 , Cheng Wang 1 , Minquan Sun 1 , Mengmeng Jia 1 , Zhihong Tang 1 , Junhe Yang 1
Affiliation  

In this work, a free-standing sodium titanate ultralong nanotube membrane for multifunctional water purification has been prepared. For obtaining this free-standing membrane with good tenacity, one-dimensional (1D) sodium titanate ultralong nanotubes with a diameter of about 48 nm and length of hundreds of micrometers were prepared from TiO2 nanoparticles by a stirring hydrothermal method, which can be easily assembled into 2D membranes by facile vacuum filtration. After modified with methyltrimethoxysilane (MTMS), the free-standing membrane with hydrophobic surface possesses oil-water separation, self-cleaning and photocatalytic functions at the same time, which is favorable for the recovery of membrane and decontamination of various pollutants including oils, dust, and organic dyes from water. Furthermore, this membrane also exhibits excellent alkaline, acid, and corrosive salt resistance. This free-standing sodium titanate membrane with multifunction has potential applications in efficient wastewater purification and environmental remediation.

中文翻译:


具有油水分离、自清洁和光催化性能的自支撑钛酸钠超长纳米管膜。



本工作制备了一种用于多功能水净化的自支撑钛酸钠超长纳米管膜。为了获得这种具有良好韧性的自支撑膜,通过搅拌水热法由TiO2纳米粒子制备了直径约48 nm、长度数百微米的一维(1D)钛酸钠超长纳米管,该纳米管易于组装通过简单的真空过滤进入二维膜。经过甲基三甲氧基硅烷(MTMS)改性后,具有疏水表面的自支撑膜同时具有油水分离、自清洁和光催化功能,有利于膜的回收和油污、灰尘等多种污染物的去污,以及来自水的有机染料。此外,该膜还表现出优异的耐碱性、耐酸性和耐腐蚀性盐性能。这种具有多功能的独立式钛酸钠膜在废水高效净化和环境修复方面具有潜在的应用前景。
更新日期:2020-01-30
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