Hydrothermal synthesis of Co substituted MnWO4 nanostructures for fluorometric sensing and determination of 4-nitrophenol
The detection of 4-nitrophenol (4-NP) is extremely important due to its toxic nature and harmful impact on the environment. In this work, we have developed a simple cost-effective fluorescence platform based on a Co-MnWO4 nanostructure synthesized via a hydrothermal method. The successful incorporation of cobalt into the MnWO4 lattice was confirmed through various characterization techniques, which also revealed improved structural and optical properties. Compared to the pristine material, Co-MnWO4 showed reduced photoluminescence intensity, indicating better charge separation. When applied as a sensor, the material exhibited excellent sensitivity towards 4-NP with a high Stern–Volmer constant (KSV) (1.89 × 104 M−1) along with a low detection limit of 9.8 nM. The fluorescence mechanism was mainly governed by a combination of electron transfer, inner filter effect, and strong interaction between the probe and analyte as supported by time resolve photoluminescence (TRPL) studies. In addition, the probe demonstrated fast response, high selectivity, good stability over a wide pH range, and excellent reusability. Real sample analysis further confirmed its practical applicability making Co-MnWO4 a promising material for environmental monitoring of toxic pollutants.
The detection of 4-nitrophenol (4-NP) is extremely important due to its toxic nature and harmful impact on the environment. In this work, we have developed a simple cost-effective fluorescence…
Herein, we report the synthesis of magnesium oxide nanorods (MgO NRs) by using magnesium chloride as Mg source whereas cetyltrimethylammonium bromide (CTAB) as surfactant. The effect of absence…
Formulating inexpensive and efficient electrocatalysts is fundamental to advancing oxygen reduction reaction (ORR) effectiveness and improving microbial fuel cell (MFC) operation.