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Ganguli, Ashok K.
- Nanocrystalline Silica from Termite Mounds
Abstract Views :257 |
PDF Views:86
Authors
Affiliations
1 Institute of Nano Science and Technology, Habitat Centre, Phase-X, Sector–64, Mohali 160 062, IN
2 Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110 016, IN
3 Department of Chemistry, Hindu College, University of Delhi, Delhi 110 007, IN
1 Institute of Nano Science and Technology, Habitat Centre, Phase-X, Sector–64, Mohali 160 062, IN
2 Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110 016, IN
3 Department of Chemistry, Hindu College, University of Delhi, Delhi 110 007, IN
Source
Current Science, Vol 106, No 1 (2014), Pagination: 83-88Abstract
To develop a better understanding of the physical properties and microstructures of the termite hill soils, we have carried out studies on the soil samples collected from two locations: near Dehradun, Utta-rakhand and near Hauz Khas, New Delhi. Their ele-mental composition and microstructure were studied using different instrumentation techniques, such as powder X-ray diffraction, field emission scanning electron.Microscopy, transmission electron microscope (TEM) and energy-dispersive analysis of X-ray (EDAX). α-Quartz (SiO2) was present in both the samples, while the sample collected from Hauz Khas, Delhi also con-tained β-cristobalite phase of SiO2. TEM-EDAX showed that termite hill soil consisted of silica (quartz), aluminium oxide, manganese oxide and iron oxide along with small percentage of potassium and calcium. Our studies highlight the potential to gene-rate α-quartz from all termite hills. It is also possible to obtain the less common β-cristobalite form of silica in certain termite mounds.
Keywords
β-Cristobalite, α-Quartz, Termite Mound, Silica.Full Text
- Sixth International Conference on Nano Science and Technology
Abstract Views :274 |
PDF Views:97
Authors
Affiliations
1 Institute of Nano Science and Technology, Phase X, Sector 64, Mohali 160 062, IN
1 Institute of Nano Science and Technology, Phase X, Sector 64, Mohali 160 062, IN
Source
Current Science, Vol 106, No 12 (2014), Pagination: 1630-1631Abstract
No Abstract.Full Text
- Graphene-Based Hybrid Materials: Synthetic Approaches and Properties
Abstract Views :298 |
PDF Views:92
Authors
Affiliations
1 Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110 016, IN
1 Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110 016, IN
Source
Current Science, Vol 107, No 3 (2014), Pagination: 397-418Abstract
Carbon has a unique chemistry reflected in its wide presence in the inorganic and organic world - benzene, diamond, graphite, fullerene, carbon nanotubes and now graphene - carbon seems to be at the centre of action in the playground of scientific research. In this review, synthesis and unique properties of graphene and graphene-based composites have been discussed with particular emphasis on the environmentally benign (green) synthetic methods and their wide applications, especially in energy conversion, energy storage, electronics, biomedical and biosensing applications.Keywords
Biosensing, Gene Delivery, Graphene Synthesis, Li-ion Batteries, Supercapacitors, Water Desalination.Full Text
- Towards Managing Nanotechnology-Related Water Pollution in India
Abstract Views :300 |
PDF Views:74
Authors
Affiliations
1 Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi 110 016, IN
2 Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110 016, IN
1 Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi 110 016, IN
2 Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110 016, IN
Source
Current Science, Vol 110, No 8 (2016), Pagination: 1401-1401Abstract
Rapid consumption of nano technology related products has increased everywhere, which is a cause of concern. Engineered nano particles (ENPs), for example, TiO2, ZnO, CuO, Ag, etc. have been found in environment and are shown to pose risks to ecological systems and humans.Full Text