Studies on the influence of surface morphology of ZnO nail beds on easy roll off of water droplets
A ZnO nanorods based superhydrophobic surface with extremely low roll-off angle is fabricated using a two-step solution based approach-Successive Ionic Layer Adsorption and Reaction (SILAR) and Chemical Bath Deposition (CBD). The grown ZnO nanorods have average diameter of 285nm with a predominant g...
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| Veröffentlicht in: | Applied surface science 2015-08, Vol.347, p.839-848 |
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| container_title | Applied surface science |
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| creator | Sutha, S. Vanithakumari, S.C. George, R.P. Mudali, U. Kamachi Raj, Baldev Ravi, K.R. |
| description | A ZnO nanorods based superhydrophobic surface with extremely low roll-off angle is fabricated using a two-step solution based approach-Successive Ionic Layer Adsorption and Reaction (SILAR) and Chemical Bath Deposition (CBD). The grown ZnO nanorods have average diameter of 285nm with a predominant growth direction of [002]. The static contact angle of ZnO nanorods superhydrophobic surface is 155°, and the dynamic contact angles contact angle hysteresis and roll-off angle is 2° and 1°, respectively. Furthermore, to comprehend the mechanism governing the extremely low roll-off angle of ZnO nanorods based superhydrophobic surface, an analytical model has been developed by incorporating the topographical (diameter, density of nanorods and solid area fraction) and droplet parameters (surface tension, mass and volume). The theoretically calculated roll-off angle closely matches with the experimental results and reported results. |
| doi_str_mv | 10.1016/j.apsusc.2015.04.163 |
| format | Article |
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Furthermore, to comprehend the mechanism governing the extremely low roll-off angle of ZnO nanorods based superhydrophobic surface, an analytical model has been developed by incorporating the topographical (diameter, density of nanorods and solid area fraction) and droplet parameters (surface tension, mass and volume). 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Furthermore, to comprehend the mechanism governing the extremely low roll-off angle of ZnO nanorods based superhydrophobic surface, an analytical model has been developed by incorporating the topographical (diameter, density of nanorods and solid area fraction) and droplet parameters (surface tension, mass and volume). The theoretically calculated roll-off angle closely matches with the experimental results and reported results.</description><subject>Contact angle</subject><subject>Contact angle hysteresis</subject><subject>Density</subject><subject>Deposition</subject><subject>Droplets</subject><subject>Mathematical models</subject><subject>Nanorods</subject><subject>Roll-off angle</subject><subject>Self-cleaning behaviour</subject><subject>Static contact angle</subject><subject>Surface chemistry</subject><subject>Zinc oxide</subject><subject>ZnO nanorods</subject><issn>0169-4332</issn><issn>1873-5584</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLxDAQx4MouD6-gYccvbQmTdJ2L4IsvkDwoF68hDymbpZsU5NW2W9v6nr2NMP8HzA_hC4oKSmh9dWmVEOakikrQkVJeElrdoAWtG1YIUTLD9Ei25YFZ6w6RicpbQihVVYXSL-Mk3WQcOjxuAbs-s5P0BvAocNpip3K6zbEYR18-NjN1_f-GffKeazB_uZApR2OwfusdrPjW40QsY1h8DCmM3TUKZ_g_G-eore729fVQ_H0fP-4unkqDGPLsTAUiOgqqqmoGy0obxUTTACzVgMXHW-oWGZB60q1BHTd1NaoWlVMt7UFwU7R5b53iOFzgjTKrUsGvFc9hClJ2pBlw0nb1tnK91YTQ0oROjlEt1VxJymRM1K5kXukckYqCZcZaY5d72OQ3_hyEGUyboZlXQQzShvc_wU_kqKCMQ</recordid><startdate>20150830</startdate><enddate>20150830</enddate><creator>Sutha, S.</creator><creator>Vanithakumari, S.C.</creator><creator>George, R.P.</creator><creator>Mudali, U. 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| ispartof | Applied surface science, 2015-08, Vol.347, p.839-848 |
| issn | 0169-4332 1873-5584 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Contact angle Contact angle hysteresis Density Deposition Droplets Mathematical models Nanorods Roll-off angle Self-cleaning behaviour Static contact angle Surface chemistry Zinc oxide ZnO nanorods |
| title | Studies on the influence of surface morphology of ZnO nail beds on easy roll off of water droplets |
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