Nature Environment and Pollution Technology

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Role of Nano-Science and Technology for Environmental Protection


Affiliations
1 Department of Chemistry, Govt. Degree College for Women, Srikakulam-532 001, A.P., India
2 Department of Organic Chemistry, Andhra University, Visakhapatnam-530 003, A.P., India
 

The first part of the paper deals with construction of nano materials. People are interested in nano scale of less than 100 nm size because in this size properties of materials are very different than that of larger size of the same material. It is due to the larger surface area and quantum effects such as electrical and magnetic properties. Nano materials are constructed by "top down" or "bottom up" process. Nano-science and technology have brought revolution in several areas such as information, medicine, health, biology, environmental protection, agriculture and in other disciplines.

Second part of the paper deals that how nano-science and technology help in prevention of air, water, soil and ground water pollution. Particles in nano size act as antibacterial, antifouling and antidust catching nature. It also involves in increasing the oxygen content in atmosphere by decomposing water in presence of nano wires of titanium dioxide and ultra violet light which is analogous to photosynthesis. It can also help in self cleaning of porcelain tiles and making stain proof films etc. Nano-technology is applied to purify water from E. coli bacteria and green algae by nano titanium dioxide coated porcelain beads. Some nano particles react with pollutants in soil to transform them into harmless compounds and also act as herbicides.


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  • Role of Nano-Science and Technology for Environmental Protection

Abstract Views: 150  |  PDF Views: 1

Authors

Tata Kondala Rao
Department of Chemistry, Govt. Degree College for Women, Srikakulam-532 001, A.P., India
Y. L. N. Murthy
Department of Organic Chemistry, Andhra University, Visakhapatnam-530 003, A.P., India

Abstract


The first part of the paper deals with construction of nano materials. People are interested in nano scale of less than 100 nm size because in this size properties of materials are very different than that of larger size of the same material. It is due to the larger surface area and quantum effects such as electrical and magnetic properties. Nano materials are constructed by "top down" or "bottom up" process. Nano-science and technology have brought revolution in several areas such as information, medicine, health, biology, environmental protection, agriculture and in other disciplines.

Second part of the paper deals that how nano-science and technology help in prevention of air, water, soil and ground water pollution. Particles in nano size act as antibacterial, antifouling and antidust catching nature. It also involves in increasing the oxygen content in atmosphere by decomposing water in presence of nano wires of titanium dioxide and ultra violet light which is analogous to photosynthesis. It can also help in self cleaning of porcelain tiles and making stain proof films etc. Nano-technology is applied to purify water from E. coli bacteria and green algae by nano titanium dioxide coated porcelain beads. Some nano particles react with pollutants in soil to transform them into harmless compounds and also act as herbicides.