Recent advances and applications of stimuli-responsive nanomaterials for water treatment: A comprehensive review
Iman Salahshoori, Amirhosein Yazdanbakhsh, Majid Namayandeh Jorabchi, Fatemeh Zare Kazemabadi, Hossein Ali Khonakdar, Amir Hossein Mohammadi
Abstract
The development of stimuli-responsive nanomaterials holds immense promise for enhancing the efficiency and effectiveness of water treatment processes. These smart materials exhibit a remarkable ability to respond to specific external stimuli, such as light, pH, or magnetic fields, and trigger the controlled release of encapsulated pollutants. By precisely regulating the release kinetics, these nanomaterials can effectively target and eliminate contaminants without compromising the integrity of the water system. This review article provides a comprehensive overview of the advancements in light-activated and pH-sensitive nanomaterials for controlled pollutant release in water treatment. It delves into the fundamental principles underlying these materials' stimuli-responsive behaviour, exploring the design strategies and applications in various water treatment scenarios. In particular, the article indicates how integrating stimuli-responsive nanomaterials into existing water treatment technologies can significantly enhance their performance, leading to more sustainable and cost-effective solutions. The synergy between these advanced materials and traditional treatment methods could pave the way for innovative approaches to water purification, offering enhanced selectivity and efficiency. Furthermore, the review highlights the critical challenges and future directions in this rapidly evolving field, emphasizing the need for further research and development to fully realize the potential of these materials in addressing the pressing challenges of water purification. • Light-activated nanomaterials trigger reactions, releasing pollutants on demand. • pH-sensitive nanomaterials respond to pH changes, enabling targeted pollutant release at specific pH thresholds. • These nanomaterials offer a promising approach to efficient and targeted pollutant removal in water treatment processes. • Ongoing research is key to unlocking the full potential of nanomaterials for a cleaner, healthier water future