Nitrophenol chemi-sensor and active solar photocatalyst based on spinel hetaerolite nanoparticles.
In this contribution, a significant catalyst based on spinel ZnMn2O4 composite nanoparticles has been developed for electro-catalysis of nitrophenol and photo-catalysis of brilliant cresyl blue. ZnMn2O4 composite (hetaerolite) nanoparticles were prepared by easy low temperature hydrothermal procedure and structurally characterized by X-ray powder diffraction (XRD), field emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR) and UV-visible spectroscopy which illustrate that the prepared material is optical active and composed of well crystalline body-centered tetragonal nanoparticles with average size of ∼ 38 ± 10 nm. Hetaerolite nanoparticles were applied for the advancement of a nitrophenol sensor which exhibited high sensitivity (1.500 µAcm(-2) mM(-1)), stability, repeatability and lower limit of detection (20.0 µM) in short response time (10 sec). Moreover, hetaerolite nanoparticles executed high solar photo-catalytic degradation when applied to brilliant cresyl blue under visible light.
Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, Jeddah, Saudi Arabia ; Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia.
Sher Bahadar
SB
Khan
Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, Jeddah, Saudi Arabia ; Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia.
Mohammed M
MM
Rahman
Division of Nano Sciences and Department of Chemistry, Ewha Womans University, Seoul, Korea.
Kalsoom
K
Akhtar
Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, Jeddah, Saudi Arabia ; Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia.
Abdullah M
AM
Asiri
Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, Jeddah, Saudi Arabia ; Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia.
Malik Abdul
MA
Rub
D000537:Aluminum Oxide / Q000737:chemistry*; D002384:Catalysis; D008277:Magnesium Oxide / Q000737:chemistry*; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D009596:Nitrophenols / Q000032:analysis* / Q000737:chemistry; D010078:Oxazines / Q000737:chemistry*; D010316:Particle Size; D055668:Photochemical Processes; D012993:Solar Energy
D009596:Nitrophenols; D010078:Oxazines; C111130:spinell; D008277:Magnesium Oxide; C006797:Brilliant Cresyl Blue; D000537:Aluminum Oxide