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CNT FILTERS (Toxicity :red_cross: (Short, thin, Single walled/multi walled…
CNT FILTERS
Toxicity :red_cross:
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Short, thin, Single walled/multi walled, Disperse, non agglomerated and suspended in a protein or fluid are CNTS are comparatively less toxic LOWER ASPECT RATIOS ARE TOXIC
we should focus on short and thin MWCNTS aligned in protein as they are easier to manufacture in higher purity:check:
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Water Flux
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STAND ALONE CNTs
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Bucky paper membranes (random arrangement of cnts within a large porous 3D network ; CNTs use their vanderwalls bond to stick to one another and through some process can be made in bucky papers
It used membrane distillation technique where hot seawater and cold water exchanges vapour through the hydrophobe pores and this accumulating pure water Fig
Bucky papers can be made with MWCNTs with a uniform or a range of inner/ outer diameter controlling its porosity The range of CNT dimensions used to make up the buckybal
Porosity vs rejection curve the average pore size was 25 nm with 14 nm SD and 91% porosity with a 80% polystyrene rejection rate at 100 nm
We see that higher % of fine cnt reduces the pore size and increases the porosity thus restricting waterflow but increasing selectivity
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