26th Dr. D P Motiramani Memorial Lecture on Metal Organic Framework conducted at TNAU

Coimbatore: The 26th Dr. D P Motiramani Memorial Lecture was organized by the Coimbatore Chapter of Indian Society of Soil Science on September 27. Dr. P Malarvizhi, Professor and Head, Department of Soil Science and Agricultural Chemistry welcomed the gathering. She recalled the contributions of Dr. D P Motiramani.

Coimbatore: The 26th Dr. D P Motiramani Memorial Lecture was organized by the Coimbatore Chapter of Indian Society of Soil Science on September 27. Dr. P Malarvizhi, Professor and Head, Department of Soil Science and Agricultural Chemistry welcomed the gathering. She recalled the contributions of Dr. D P Motiramani.

Dr. Motiramani was an eminent Soil Scientist, who was the then Vice-Chancellor of Assam Agricultural University, Jorgat and was well known for his notable contributions in the field of Soil Science, especially in soil fertility and water management. 

Dr. R Santhi, Director, Directorate of Natural Resource Management introduced the speaker, Dr. P Suresh Kumar, Professor and Head, Radioisotope Laboratory, Kerala Agricultural University, Thrissur, Kerala. Dr. N Kumar, Vice-Chancellor, Tamil Nadu Agricultural University (TNAU) presided over the function.

The Vice Chancellor in his presidential address emphasized that healthy soil is the foundation upon which sustainable agriculture is built. Further, it was pointed out that in the age of environmental concern, there was a strong need for research on linking minerals to organics which will provide better management of soils optimizing their productivity even amidst the soil adversities due to soil pollution.



Dr. P Suresh Kumar, Former Professor and Head, Radioisotope Laboratory, Kerala Agricultural University, Thrissur, Kerala in his lecture on 'Metal organic frameworks: Futuristic option for clean environment' emphasized that pollution in all its forms is of a major environmental concern, worldwide.

The effective and efficient removal of contaminants is of prime importance in ensuring a clean and safe environment. Metal organic frameworks (MOFs), a fast-growing branch of coordination chemistry has plenty of scope in decontamination. MOFs have attracted a great deal of attention, because of their versatility and potential applications.



There are several interesting characteristics that make MOFs unique and different from other conventional porous solids. These include (a) high surface area (greater than 7000 m2 /g) (b) tunable or adjustable pore size (c) diversified structure (MOFs can adopt various coordination geometry) and (d) facile functionalization (versatile functional groups can be attached to enhance adsorptive performance). Various approaches of synthesis of MOFs, approaches for boosting the adsorption capacity of MOFs, mechanism of adsorption of MOFs were clearly brought out by the speaker. 

The speaker also explained the application of MOFs with a few case studies viz., Absorption of lead from wastewater using MOF/chitosan beads, Removal of dye using MOFs, Phosphate removal using MOFs and Metal organic frameworks for air cleaning. The deficit of thermally stable MOFs and their high cost are the main limitations with regard to the application of MOFs in pollution control. 

The researches on MOFs are mainly confined to water and air purification. Metal organic frameworks are effective in removing heavy metals, radioactive substances, halides, agrochemicals, dyes, oils, particulate matter and also airborne pathogens. So, MOFs can unquestionably be an efficient adsorbent for environmental pollution management.

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