Chemistry, Technology and Utilization of Nanolime

Area of Science:

• Materials Science and Engineering
• Nanotechnology
• Chemical Engineering

Background:

• Nanolime, or calcium hydroxide nanoparticles (Ca(OH)₂), is a material with unique physicochemical properties.
• Its potential applications span construction, environmental protection, and heritage conservation.
• Understanding its synthesis and properties is crucial for optimizing its use.

Purpose of the Study:

• To comprehensively review the chemistry, production, and utilization of nanolime.
• To highlight synthesis techniques for controlled nanoparticle characteristics.
• To explore nanolime's role in enhancing material performance and environmental applications.

Main Methods:

• Review of bottom-up and top-down synthesis approaches for Ca(OH)₂ nanoparticles.
• Analysis of physicochemical properties influencing nanolime's reactivity and functionality.
• Examination of application-specific performance improvements and challenges.

Main Results:

• Nanolime acts as a multifunctional additive, significantly improving strength, durability, and self-healing in cementitious systems and asphalt.
• It demonstrates potential in CO₂ sequestration and heritage conservation.
• Key challenges include agglomeration, carbonation control, scalability, and long-term durability.

Conclusions:

• Nanolime is a versatile material with tunable properties for specific engineering demands.
• Further research is needed for sustainable production and integration into advanced materials.
• Cross-disciplinary applications and addressing current limitations are key future directions.