title: Detection and monitoring of toxic chemical at ultra trace level by utilizing doped nanomaterial.
abstract: Composite nanoparticles were synthesized by eco-friendly hydrothermal process and characterized by different spectroscopic techniques. All the spectroscopic techniques suggested the synthesis of well crystalline optically active composite nanoparticles with average diameter of ∼ 30 nm. The synthesized nanoparticles were applied for the development of chemical sensor which was fabricated by coating the nanoparticles on silver electrode for the recognition of phthalimide using simple I-V technique. The developed sensor exhibited high sensitivity (1.7361 µA.mM(-1).cm(-2)), lower detection limit (8.0 µM) and long range of detection (77.0 µM to 0.38 M). Further the resistances of composite nanoparticles based sensor was found to be 2.7 MΩ which change from 2.7 to 1.7 with change in phthalimide concentration. The major advantages of the designed sensor over existing sensors are its simple technique, low cost, lower detection limit, high sensitivity and long range of detection. It can detect phthalimide even at trace level and sense over wide range of concentrations. Therefore the composite nanoparticals would be a better choice for the fabrication of phthalimide chemical sensor and would be time and cost substituted implement for environmental safety.
authors.affiliation: Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia.
authors.forename: Sher Bahadar
authors.initials: SB
authors.lastname: Khan
authors.affiliation: Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia; Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, Jeddah, Saudi Arabia.
authors.forename: Mohammed M
authors.initials: MM
authors.lastname: Rahman
authors.affiliation: Division of Nano Sciences and Department of Chemistry, Ewha Womans University, Seoul, Korea.
authors.forename: Kalsoom
authors.initials: K
authors.lastname: Akhtar
authors.affiliation: Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia; Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, Jeddah, Saudi Arabia.
authors.forename: Abdullah M
authors.initials: AM
authors.lastname: Asiri
mesh_terms: D002623:Chemistry Techniques, Analytical / Q000295:instrumentation*; D004566:Electrodes; D004785:Environmental Pollutants / Q000032:analysis* / Q000737:chemistry; D057230:Limit of Detection; D053758:Nanoparticles / Q000032:analysis* / Q000737:chemistry; D036103:Nanotechnology; D010316:Particle Size; D010797:Phthalimides / Q000737:chemistry; D012834:Silver / Q000737:chemistry; D013057:Spectrum Analysis
chemical_list: D004785:Environmental Pollutants; D010797:Phthalimides; C037431:phthalimide; D012834:Silver