SAT NANO is a leading supplier of high-quality nanoscale zinc oxide powder. Our products come in two sizes, 10-20 nm and 30 nm. Besides, we have recently developed an innovative surface modification method that improves the stability and dispersibility of our nanoscale zinc oxide powder. This method is effective in converting the surface of the powder from hydrophilic to hydrophobic, thus reducing the agglomeration of particles and enhancing their performance in various applications.
Surface Modification Methods for Nanoscale Zinc Oxide Powder
Nanoscale zinc oxide powder is widely used in various applications such as catalysts, chemical sensors, sunscreens, and antibacterial agents due to its unique properties such as high surface to volume ratio, high catalytic activity, and UV absorption.
However, the agglomeration of particles is a common problem that can compromise the performance of zinc oxide powder. To overcome this challenge, SAT NANO has developed a surface modification method that improves the stability and dispersibility of nanoscale zinc oxide powder.
The method involves pre-drying an appropriate amount of nanoscale zinc oxide in a vacuum drying oven. Next, a mixture of deionized water and anhydrous ethanol (in a mass ratio of 3:5) is added to a beaker containing the pre-dried zinc oxide powder. The mixture is then treated with ultrasonic waves for 30 minutes, stirred at 1000 rpm for 1 hour, and dropwise added with 3% silicon coupling agent (KH-570) at a constant temperature. The reaction is carried out for 2 hours at 60°C. The surface-modified nanoscale zinc oxide powder is then washed three times with anhydrous ethanol and centrifuged three times to remove any impurities. Finally, the powder is dried in a vacuum drying oven.
The surface modification method using KH-570 coupling agent has been found to be highly effective in improving the dispersibility and stability of nanoscale zinc oxide powder. This is shown by the increase in the activation index, which indicates the catalytic activity of the powder. FT-IR analysis also reveals that the KH-570 coupling agent successfully modified the surface of the zinc oxide particles. XRD and SEM analyses show that the modification process does not change the hexagonal crystal structure of nanoscale zinc oxide powder but significantly improves their agglomeration behavior.
Conclusion
In conclusion, SAT NANO has developed an innovative surface modification method that improves the performance of nanoscale zinc oxide powder. This method is highly effective in converting the hydrophilic surface of zinc oxide particles to hydrophobic, reducing the agglomeration of particles and improving their dispersibility and stability. The surface-modified nanoscale zinc oxide powder is suitable for various applications such as catalysts, chemical sensors, sunscreens, and antibacterial agents. Order now and experience the difference!
