Integration of NdVO4/h-BN nanocomposite for the sensitive electrochemical detection of N-methyl-p-aminophenol sulfate

Environmental sustainability is threatened by unregulated industrial effluent discharge, worsening ecosystem degradation. N-methyl-p-aminophenol sulfate (Metol), a widely utilized color-developing agent and hair dye industries, organic pollution that stays in the environment because it was disposed of in aquatic in an improper manner. In this study, fabricated neodymium vanadate/hexagonal boron nitride (NdVO₄/h-BN) for the sensitive detection of Metol. NdVO₄ has a tetragonal crystal structure and an h-BN-exhibited hexagonal crystal structure with the absence of any impurity phases. In addition, the results of the XRD, Raman, FTIR and XPS analyses show that NdVO₄ and h-BN were successfully integrated without the presence of any impurity phases. The electrocatalyst showed good sensitivity and selectivity, with a broad linear response range of 0.001–1731 μM and an ultralow detection limit of 0.35 nM. Furthermore, the sensor exhibited excellent repeatability (4times with RSD = ±1.98 %), reproducibility (5GCEs with RSD = ±2.49 %), and recovery efficiency (±96.15–99.47 %) in complex sample matrices. The applicability of the developed sensor was validated through the quantitative detection of Metol in real-world environmental samples, confirming its robustness and reliability. These results show that the sensor could be used to watch the environment on-site and check the quality of water regularly in wastewater treatment plants, surface water, and industrial effluent.