Eng's Notebook

Hello guys, As you know, graphene oxide is an advanced material that can be used in the water purification industry. What is meant by water scarcity and contamination? According to UNISEF , even in countries with sufficient water resources, water scarcity remains a challenge. This issue often arises from factors such as inadequate infrastructure, contamination, conflict, and climate change, as well as human factors and poor management.  In this previous series of articles, we have discussed the basics of graphene oxide (GO) and what makes graphene oxide a key material in modern research. Graphene oxide is used as a filter membrane (with a suitable substrate) for water purification, especially in waste water threats. So, in this article, we will discuss the purification mechanism of graphene oxide-based membranes in waste water purification.  Figure 01: Industrial Wastewater First of all, what is waste water, and why is waste water purification important? Waste water is water t...

This is the second part of the article "Graphene Oxide: The Future of Research.". In this article, let's explore the applications, future directions, and limitations of graphene oxide. Applications of Graphene Oxide  Graphene oxide has a wide range of applications due to its properties, including high surface area, hydrophilicity, and tunable electrical and thermal conductivity. Below are some key applications. 1. Water purification GO membranes can remove heavy metals, organic contaminants, and bacteria from waste water and soften hard water. This is due to functional groups of GO and high surface area. When the amount of functional groups increases, the negative charge of the surface also increases, allowing it to absorb positive ions. This is the mechanism for removing positive ions using GO membranes. And GO has excellent water permeability, rejection rate, and antifouling properties, making it suitable for long-term filtration applications. 2. Energy Storage GO is wi...