Mesoporous materials

mudasir malik

1. MESOPOROUS MATERIALS

2. CONTENTS Introduction Types Synthesis Applications

3. POROUS MATERIALS A  porous   material   containing  pores  (voids).   pores  are typically filled with a fluid. examples of porous materials  include sponges, and cork.

4. Mesoporous Materials Introduction Meso a Greek prefix ‘ inbetween ’’ the micro and macro porous sytems . They possess high surface area 400-1000m2\g large pore volume high stability 500-600

5. HISTORY 1970 Reproduced in 1997 MSNs synthesized in 1990 MCM-41

6. TYPES MCM-41 MCM-48 MCM-50 HMS SBA-15

7. TYPES OF MESOPOROUS MATERIALS

8. OXIDES Mesoporous Oxides of tantalum niobium titanium zirconium cerium also have been reported.

9. Hard Templates

10. APPLICATIONS Diagnostics Drug delivery system Adsorbents Chromatography Sensors Catalysis

11. Diagnostics Chemical stability. Low toxicity Flourescent markers Drugs can be used to track the location of therapeutic agents and their activity.

12. ADSORBENT Use as adsorbents for various gases, liquids and toxic heavy metals. Based upon surface property hydrophobic, hydrophilic

13. CHROMATOGRAPHY Large pore volume surface area pore-size distribution of mesoporous silica, make it a good candidate for size exclusion chromatography. As stationary phases.

14. DRUG DELIVERY SYSTEMS Drug efficiency. Drug carrier must be non-toxic and inert during the treatment period. Silica based Mesoporous materials have great relevance for such life science applications.

15. CATALYSIS

16. SENSORS Have great potential in the field of gas sensing. Act as active layers in gas sensors based on various operating principles, such as capacitive, resistive, or optical sensing.