Abstract
Nanotechnology for the scientific and economical revival is of indispensable importance, and the so-called nano-age or nano-industrialization is coming. The paper reveals the very frontier of nanotechnology in mass-production of nanofibers, and the bubble-electrospinning is introduced, and its application to filteration is emphasized. By mimicking the structure of silkworm cocoon, the filteration efficiency reaches its maximum, while the pressure drop through the filter is minimal, and small water cluster is obtained after nanofiber membrane for water purification.
Highlights
Nanomaterial always behaves extremely and extraordinarily, and it is defined as nanoscale material with nano-effect properties, which always result in, for example, excellent thermal and mechanical properties independent of the bulk material
We consider a thinner layer of nanofibrous membrane, the flow rate through the membrane can be expressed as [8]
Water in human body is used for chemical reaction, and small water cluster is important for metabolism
Summary
Nanomaterial always behaves extremely and extraordinarily, and it is defined as nanoscale material with nano-effect properties, which always result in, for example, excellent thermal and mechanical properties independent of the bulk material. We consider a thinner layer of nanofibrous membrane, the flow rate through the membrane can be expressed as [8]. Where 0 is the flow rate of the bulk material with large scale, i.e., the fibers involved are macroscopic , d is the fiber diameter, 0 is a scaling exponent, in Ref.[8] we recommend 1/ 2 for qualitative analysis. We consider the membrane with diameter of 10 nm, according to Eq (1), we have. This theoretical prediction meets the experimental observation by Majumder et al [9]
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