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Liu L, Zhou F, Zhang Y, Sun Y, Zhang S, Cai K, Qiu R, Lin Y, Fa W, Wang Z. On-Line pH Measurement Cation Exchange Kinetics of Y 3+-Exchanged Alginic Acid for Y 2O 3 Nanoparticles Synthesis. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:696. [PMID: 38668190 PMCID: PMC11053912 DOI: 10.3390/nano14080696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 04/08/2024] [Accepted: 04/15/2024] [Indexed: 04/29/2024]
Abstract
A new sol-gel method that employs cation exchange from an aqueous metal ion solution with H+ ions of granulated alginic acid was developed for synthesizing high-purity Y2O3 nanoparticles. In this study, the cation exchange kinetics of H+~Y3+ in aqueous solution were analyzed using on-line pH technology and off-line inductively coupled plasma-atomic emission spectrometry (ICP-AES) analysis. Pseudo 2nd-order models were utilized to evaluate the parameters of the kinetics, suggesting that the concentration of H+~Y3+ involved in the cation exchange reaction was 1:1.733. Further, a comprehensive understanding of the Y-ALG calcination process was developed using thermo-gravimetric analysis, along with results obtained from differential scanning calorimetry (TGA/DSC). A detailed analysis of the XRD Rietveld refinement plots revealed that the crystallite sizes of Y2O3 nanoparticles were about 4 nm (500 °C) and 15 nm (800 °C), respectively. Differential pulse voltammetry (DPV) was employed to investigate the electrochemical oxidation of catechol. The oxidation peak currents of catechol at Y2O3 (500 °C)/GCE and Y2O3 (800 °C)/GCE showed two stages linear function of concentration (2.0~20.0 × 10-6 mol/L, 20.0~60.0 × 10-6 mol/L). The results indicated that the detection limits were equal to 2.4 × 10-7 mol/L (Y2O3 (500 °C)/GCE) and 7.8 × 10-7 mol/L (Y2O3 (800 °C)/GCE). The study not only provided a method to synthesize metal oxide, but also proposed a promising on-line pH model to study cation exchange kinetics.
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Affiliation(s)
- Lingyu Liu
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Xuchang 461000, China; (L.L.); (F.Z.); (Y.Z.); (Y.S.); (S.Z.); (K.C.); (R.Q.)
| | - Fengchen Zhou
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Xuchang 461000, China; (L.L.); (F.Z.); (Y.Z.); (Y.S.); (S.Z.); (K.C.); (R.Q.)
| | - Yuxiang Zhang
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Xuchang 461000, China; (L.L.); (F.Z.); (Y.Z.); (Y.S.); (S.Z.); (K.C.); (R.Q.)
| | - Yanhua Sun
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Xuchang 461000, China; (L.L.); (F.Z.); (Y.Z.); (Y.S.); (S.Z.); (K.C.); (R.Q.)
| | - Shixing Zhang
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Xuchang 461000, China; (L.L.); (F.Z.); (Y.Z.); (Y.S.); (S.Z.); (K.C.); (R.Q.)
| | - Kun Cai
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Xuchang 461000, China; (L.L.); (F.Z.); (Y.Z.); (Y.S.); (S.Z.); (K.C.); (R.Q.)
| | - Ruichong Qiu
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Xuchang 461000, China; (L.L.); (F.Z.); (Y.Z.); (Y.S.); (S.Z.); (K.C.); (R.Q.)
| | - Yi Lin
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China;
| | - Wenjun Fa
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Xuchang 461000, China; (L.L.); (F.Z.); (Y.Z.); (Y.S.); (S.Z.); (K.C.); (R.Q.)
| | - Zihua Wang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China;
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