Application of polypyrrole multi-walled carbon nanotube composite layer for detection of mercury, lead and iron ions using surface plasmon resonance technique
Polypyrrole multi-walled carbon nanotube composite layers were used to modify the gold layer to measure heavy metal ions using the surface plasmon resonance technique. The new sensor was fabricated to detect trace amounts of mercury (Hg), lead (Pb), and iron (Fe) ions. In the present research, the s...
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| creator | Sadrolhosseini, Amir Reza Noor, A S M Bahrami, Afarin Lim, H N Talib, Zainal Abidin Mahdi, Mohd Adzir |
| description | Polypyrrole multi-walled carbon nanotube composite layers were used to modify the gold layer to measure heavy metal ions using the surface plasmon resonance technique. The new sensor was fabricated to detect trace amounts of mercury (Hg), lead (Pb), and iron (Fe) ions. In the present research, the sensitivity of a polypyrrole multi-walled carbon nanotube composite layer and a polypyrrole layer were compared. The application of polypyrrole multi-walled carbon nanotubes enhanced the sensitivity and accuracy of the sensor for detecting ions in an aqueous solution due to the binding of mercury, lead, and iron ions to the sensing layer. The Hg ion bonded to the sensing layer more strongly than did the Pb and Fe ions. The limitation of the sensor was calculated to be about 0.1 ppm, which produced an angle shift in the region of 0.3° to 0.6°. |
| doi_str_mv | 10.1371/journal.pone.0093962 |
| format | Article |
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The new sensor was fabricated to detect trace amounts of mercury (Hg), lead (Pb), and iron (Fe) ions. In the present research, the sensitivity of a polypyrrole multi-walled carbon nanotube composite layer and a polypyrrole layer were compared. The application of polypyrrole multi-walled carbon nanotubes enhanced the sensitivity and accuracy of the sensor for detecting ions in an aqueous solution due to the binding of mercury, lead, and iron ions to the sensing layer. The Hg ion bonded to the sensing layer more strongly than did the Pb and Fe ions. 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The limitation of the sensor was calculated to be about 0.1 ppm, which produced an angle shift in the region of 0.3° to 0.6°.</description><subject>Adsorption</subject><subject>Analysis</subject><subject>Biodiesel fuels</subject><subject>Biology and Life Sciences</subject><subject>Biomedical materials</subject><subject>Bonding strength</subject><subject>Carbon</subject><subject>Chemical bonds</subject><subject>Composite materials</subject><subject>Engineering</subject><subject>Engineering and Technology</subject><subject>Glucose</subject><subject>Gold</subject><subject>Handbooks</subject><subject>Heavy metals</subject><subject>Interfacial bonding</subject><subject>Ions</subject><subject>Iron</subject><subject>Iron - analysis</subject><subject>Lead</subject><subject>Lead - analysis</subject><subject>Mercury</subject><subject>Mercury (metal)</subject><subject>Mercury - analysis</subject><subject>Metals</subject><subject>Metals, Heavy - analysis</subject><subject>Microscopy, Atomic Force</subject><subject>Multi wall carbon nanotubes</subject><subject>Nanocomposites</subject><subject>Nanotechnology</subject><subject>Nanotubes</subject><subject>Nanotubes, Carbon - 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The new sensor was fabricated to detect trace amounts of mercury (Hg), lead (Pb), and iron (Fe) ions. In the present research, the sensitivity of a polypyrrole multi-walled carbon nanotube composite layer and a polypyrrole layer were compared. The application of polypyrrole multi-walled carbon nanotubes enhanced the sensitivity and accuracy of the sensor for detecting ions in an aqueous solution due to the binding of mercury, lead, and iron ions to the sensing layer. The Hg ion bonded to the sensing layer more strongly than did the Pb and Fe ions. The limitation of the sensor was calculated to be about 0.1 ppm, which produced an angle shift in the region of 0.3° to 0.6°.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>24733263</pmid><doi>10.1371/journal.pone.0093962</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Adsorption Analysis Biodiesel fuels Biology and Life Sciences Biomedical materials Bonding strength Carbon Chemical bonds Composite materials Engineering Engineering and Technology Glucose Gold Handbooks Heavy metals Interfacial bonding Ions Iron Iron - analysis Lead Lead - analysis Mercury Mercury (metal) Mercury - analysis Metals Metals, Heavy - analysis Microscopy, Atomic Force Multi wall carbon nanotubes Nanocomposites Nanotechnology Nanotubes Nanotubes, Carbon - chemistry Optical Phenomena Optical properties Photonics Physical Sciences Polymers Polymers - chemistry Polypyrroles Publishing Pyrrole Pyrroles - chemistry Refractometry Resonance Scientific imaging Sensitivity Sensitivity enhancement Sensors Solutions Spectrophotometry, Atomic Surface plasmon resonance Surface Plasmon Resonance - methods Thiophene Water Pollutants, Chemical - analysis |
| title | Application of polypyrrole multi-walled carbon nanotube composite layer for detection of mercury, lead and iron ions using surface plasmon resonance technique |
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