使用涂层双氧化物/石墨烯氧化物纳米复合材料覆盖的不钢网格进行水淡化
Fahimeh Foroutan1, Hossein Ahmadzadeh1, Maryam Davardoostmanesh1
1Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
概括
在不钢网上使用层叠的双氧化物/石墨烯氧化物 (LDH/GO) 纳米复合材料的新型海水淡化膜提供了高效的盐分去除. 这种先进的材料在大约五分钟内实现了高吸附能力和快速海水淡化.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 开发高效且可扩展的海水淡化技术对于解决全球缺水问题至关重要.
- 传统方法经常面临能源消耗,成本和膜污染等挑战.
- 纳米复合材料为先进的分离过程提供了新的特性.
研究的目的:
- 开发和优化涂层不钢网格与层叠的双氧化物和石墨烯氧化物 (LDH/GO) 纳米复合材料,以实现高效的海水淡化.
- 为了研究LDH/GO纳米复合材料膜的吸附能力和性能,以去除盐.
主要方法:
- 使用sol-gel技术用LDH/GO纳米复合材料涂覆不钢网格.
- 优化诸如GO:LDH比率,网状层,NaCl度和工艺周期等参数.
- 评估海水淡化效率,吸附能力,耐腐蚀性和抗拉强度.
主要成果:
- 在LDH/GO不钢网上显示出高吸附能力 (555.5毫克g-1) 和高效的NaCl去除 (94.3%).
- 膜显示出出色的耐腐蚀性 (99.9%) 和拉伸强度 (112 MPa).
- 成功地去除了海水中的关键阳离子 (Na+,Mg2+,Ca2+,K+),产量高 (90.292.5%).
结论:
- 涂层不钢网格与LDH/GO纳米复合材料是有效的和快速的海水淡化膜.
- 溶凝技术增强了吸附剂负载和膜稳定性.
- 这种方法为从水源中有效去除盐提供了一个有希望的解决方案.
更多相关视频
07:28An Efficient Method for Selective Desalination of Radioactive Iodine Anions by Using Gold Nanoparticles-Embedded Membrane Filter
Published on: July 13, 2018
7.5K
09:39Proof-of-Concept for Gas-Entrapping Membranes Derived from Water-Loving SiO2/Si/SiO2 Wafers for Green Desalination
Published on: March 1, 2020
7.5K
相关概念视频
Coagulation
Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...
Waterproofing and Anti-Bacterial Admixtures in Concrete
Concrete's susceptibility to water absorption is due to the capillary action within the pores of its hydrated cement paste. This action draws water in, creating the need for waterproofing admixtures to prevent such penetration. The efficacy of these admixtures is contingent upon the water pressure, with variations arising from different conditions such as rain, capillary rise, or hydrostatic pressure in structures intended to hold water.
Waterproofing admixtures render concrete hydrophobic,...
Waterproofing admixtures render concrete hydrophobic,...
Corrosion of Reinforcement
The corrosion of steel reinforcement within concrete is a process influenced by the material's inherent properties and external factors. The high pH level of around 13, provided by calcium hydroxide present in concrete, initially protects the steel reinforcement by promoting the formation of a passive iron oxide layer on its surface.
However, over time and under certain conditions like carbonation, chloride ingress, and cracking this protective state can be compromised. Steel has areas with...
However, over time and under certain conditions like carbonation, chloride ingress, and cracking this protective state can be compromised. Steel has areas with...
