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Investigation of Cellulose and Tin Oxide Hybrid Composite as a Disposable pH Sensor
| Content Provider | Scilit |
|---|---|
| Author | Mahadeva, Suresha K. Ko, Hyun-U Kim, Jaehwan |
| Copyright Year | 2013 |
| Abstract | This paper reports a low cost and disposable pH sensor made with a cellulose and tin oxide hybrid composite. Cellulose- tin oxide hybrid composite was prepared by wet chemical method, which involves immersion of a wet regenerated cellulose film in to a mixture of deionized water and SnF2(5 mM concentration), maintained at 90 ºC for a given time; 6, 12, 18 and 24 h with stirring. The proposed pH sensor showed a consistent increase of its conductance, and the sensitivity defined as the change of resistance with respect to the pH level portrays three regions with different slope rates depending on the pH value: 0.4 MΩ/pH, 31.2 kΩ/pH and 0.2 MΩ/pH in pH range of 1–4, 4–8 and 8–12, respectively. The high sensitivity at the pH range of 4–8 is very useful for industrial applications. Also, Since the proposed pH sensor is made with cellulose film, it is disposable, cheap and environment-friendly. |
| Related Links | http://www.degruyter.com/downloadpdf/j/zpch.2013.227.issue-4/zpch.2013.0339/zpch.2013.0339.xml |
| Ending Page | 428 |
| Page Count | 10 |
| Starting Page | 419 |
| ISSN | 09429352 |
| e-ISSN | 21967156 |
| DOI | 10.1524/zpch.2013.0339 |
| Journal | Zeitschrift für Physikalische Chemie |
| Issue Number | 4 |
| Volume Number | 227 |
| Language | English |
| Publisher | Walter de Gruyter GmbH |
| Publisher Date | 2013-03-11 |
| Access Restriction | Open |
| Subject Keyword | Zeitschrift Für Physikalische Chemie Paper and Wood Nanocomposites Journal: Zeitschrift für Physikalische Chemie, Vol- 227 |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physical and Theoretical Chemistry |
