Cost-effective layered double hydroxides/conductive polymer nanocomposites for electrochemical detection of wastewater pollutants

• DOI: 10.1016/j.cjac.2024.100368
• Publication Date: 2024-02-11T00:19:39Z
• Authors: Morris KAMEL; Gehad Abd EL-FATAH; Amal ZAHER; Ahmed A. FARGHALI; Sarah I. OTHMAN; Ahmed A. ALLAM; Hassan Ahmed RUDAYNI; Asmaa M. SALAH; Mohamed E.M. HASS...; Rehab MAHMOUD
• Keywords: Nanomaterials; Carbon paste electrode; Layered double hydroxides; Differential pulse voltammetry

There is an urgent need to develop multifunctional cost-effective nanomaterials and nanocomposites that can be used in numerous applications while showing high efficiency cheaper implementation compared conventional techniques and/or materials. In this work, zinc/iron layered double hydroxide (LDH) polyaniline (PANI) were synthesized as a model LDH/conductive polymer nanocomposite, which promising family of cheap This electrochemical properties nanocomposite was investigated for detection heavy metal (HM) ions water streams, using lead HM . the present LDH PANI assigned carbon paste electrode modifier. The composite fully characterized various characterization including X-ray diffraction (XRD), scanning electron microscope (SEM), Fourier transform InfraRed (FTIR). redox reactions (II) at modified interface cyclic voltammetry (CV), differential pulse (DPV), Accordingly, linear relation Pb2+ achieved concentration range 1–80 µM with limit (LOD) 167.8 nM quantification (LOQ) 559.4 nM. Furthermore, cost such material removal typical adsorption study inductively coupled plasma (ICP) or atomic absorption spectrometry (AAS) equipment tracking during process. Cost analysis revealed final overall estimated 1.25 USD. represents less than 0.1% total required conduct same ICP AAS equipment. pave road towards portable measurements onsite wastewater pollutants disposable-electrodes massive expensive off site AAS.