Non-Enzymatic Electrochemical Sensing of Bisphenol A in Drinking Water and Milk Using Bimetallic Nickel-Copper Metal–Organic Framework  

作　　者：Baban Dey Md.Wasi Ahmad Refat Al-Shannaq Jehan Y.Al-Humaidi S.K.Safdar Hossain Chandra N.Patra Raed H.Althomali Mohammed M.Rahman Arup Choudhury 

机构地区：[1]Department of Chemical Engineering,Birla Institute of Technology,Ranchi,835215,India [2]Department of Chemical Engineering,College of Engineering,Dhofar University,P.O.Box 2509,Salalah,211,Sultanate of Oman [3]Department of Chemistry,College of Science,Princess Nourah Bint Abdulrahman University,P.O.BOX 84428,Riyadh,11671,Saudi Arabia [4]Department of Chemical Engineering,College of Engineering,King Faisal University,P.O.Box 380,Al-Ahsa,31982,Saudi Arabia [5]Analytical Chemistry Division,Chemistry Group,Bhabha Atomic Research Centre,Mumbai,400085,India [6]Homi Bhabha National Institute,Anushaktanagar,Mumbai,400094,India [7]Department of Chemistry,College of Art and Science,Prince Sattam Bin Abdulaziz University,Wadi Al-Dawasir,Al Kharj,11991,Saudi Arabia [8]Center of Excellence for Advanced Materials Research(CEAMR)&,Department of Chemistry,Faculty of Science,King Abdulaziz University,Jeddah,21589,Saudi Arabia

出　　处：《Journal of Analysis and Testing》2024年第4期451-465,共15页分析检测(英文)

基　　金：supported by the Princess Nourah bint Abdulrahman University as Researchers Supporting Project No.(PNURSP2024R24),Princess Nourah bint Abdulrahman University,Riyadh,Saudi Arabia;supported via funding from Prince Sattam bin Abdulaziz University Project No.(PSAU/2023/R/1444)。

摘　　要：In recent years,there have been concerns about the toxicity of bisphenol A(BPA)in food packaging materials due to the potential endocrine disrupting effects it may have on humans,especially children and infants.In this present investigation,a free-standing nickel-copper pyridine-2,6-dicarboxylic acid(PDA)metal organic framework(MOF)anchored carbon nanofiber paper(Ni-Cu(PDA)MOF/CNF)was synthesized for the sensing and quantify the BPA analytes in milk and water.As-prepared bimetallic MOF hybrid materials are extremely porous,hydrophilic in nature with a huge surface area.This allows for the easy pathway of analyte molecules,which react with the redox-active metal sites of MOF matrix and enhance the sensitivity.During electrocatalysis reaction,various functional groups present in the MOF system can also act as dynamic adsorption sites.In the neutral medium(pH=7.0),the Ni-Cu(PDA)MOF/CNF modified glassy carbon electrode(Ni-Cu(PDA)MOF/CNF/GCE)ascertained good catalytic activity and strong electrochemical sensitivity toward BPA with higher sensitivity value and lower limit of detection(LOD)value.The irreversible and diffusion-controlled oxidation reactions of BPA were observed.The bimetallic MOF modified electrode displayed an extensive linear ranging from 1 to 150μmol/L with a LOD of 75 n mol/L for BPA detection.The MOF anchored electrode displayed exceptional anti-interference property,reproducibility and good storage stability up to one month.It is notable that the Ni-Cu(PDA)MOF/CNF/GCE has proved the competence of detecting BPA in milk and drinking water samples,which displayed satisfactory outcomes with chromatographic analysis.

关 键 词：Nickel-copper MOF Carbon nanofiber Electrochemical sensor Limit of detection Bisphenol A 

分 类 号：TU991.21[建筑科学—市政工程] TS252.7[轻工技术与工程—农产品加工及贮藏工程] O657.1[轻工技术与工程—食品科学与工程]