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Liu P, Jia W, Ou X, Liu C, Zhang J, Chen Z, Li X. Study on Synthesis and Adsorption Properties of ReO 4 - Ion-Imprinted Polymer. ACS OMEGA 2020; 5:24356-24366. [PMID: 33015452 PMCID: PMC7528184 DOI: 10.1021/acsomega.0c02634] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 09/03/2020] [Indexed: 06/11/2023]
Abstract
In this work, an ion imprinted polymer (ReO4 --IIP) of the perrhenate ion based on acrylamide (AM) and acrylic acid (AA) was prepared by solution polymerization using ReO4 - as a template ion, N,N-methylenebisacrylamide (NMBA) as cross-linkers, hydrogen peroxide-vitamin C (H2O2-Vc) as an initiator, and a mixed solution of water (H2O) and methanol (CH3OH) with volume ratio v(H2O)/v(CH3OH) = 3:7 as a solvent. During the process of synthesis condition investigation and optimization, the adsorption capacity (Q) and the separation degree (R) in the equimolar concentration mixture solutions of NH4ReO4 and KMnO4 were adopted as indexes, and the obtained optimal conditions were as follows: the molar ratios of NMBA, NH4ReO4, AA, H2O2, and Vc to AM were 5.73, 0.052, 1.29, 0.02, and 0.003, and the temperature and time of polymerization were 40 °C and 28 h, respectively. Under optimal conditions, the sample with indexes, Q and R of 0.064 mmol/g and 3.20, were harvested. What is more, a further reusability study found that good adsorption selectivity was maintained after repeating the experiment 9 times. Taking the non-IP prepared under the same conditions as a control, Fourier transform infrared spectroscopy, transmission electron microscopy, and Brunauer Emmett Teller were used to characterize the structure of the ReO4 --IIP prepared under the optimal conditions. Finally, the kinetic study results showed that the zero-order kinetic model could better describe the adsorption process. The thermodynamic study results showed that the Langmuir model was more suitable for describing the isotherm adsorption process of the IIP.
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Affiliation(s)
- Pu Liu
- State
Key Laboratory of Advanced Processing and Recycling of Nonferrous
Metals, Lanzhou University of Technology, Lanzhou 730050, Gansu, China
- School
of Materials Science and Engineering, Lanzhou
University of Technology, Lanzhou 730050, Gansu, China
- Baiyin
Research Institute of Novel Materials of Lanzhou University of Technology, Baiyin 730900, Gansu, China
| | - Weiwei Jia
- State
Key Laboratory of Advanced Processing and Recycling of Nonferrous
Metals, Lanzhou University of Technology, Lanzhou 730050, Gansu, China
- School
of Materials Science and Engineering, Lanzhou
University of Technology, Lanzhou 730050, Gansu, China
| | - Xiaojian Ou
- State
Key Laboratory of Nickel and Cobalt Resources Comprehensive Utilization, Jinchang 737100, Gansu, China
| | - Chunli Liu
- State
Key Laboratory of Advanced Processing and Recycling of Nonferrous
Metals, Lanzhou University of Technology, Lanzhou 730050, Gansu, China
- School
of Materials Science and Engineering, Lanzhou
University of Technology, Lanzhou 730050, Gansu, China
| | - Jun Zhang
- State
Key Laboratory of Advanced Processing and Recycling of Nonferrous
Metals, Lanzhou University of Technology, Lanzhou 730050, Gansu, China
- School
of Materials Science and Engineering, Lanzhou
University of Technology, Lanzhou 730050, Gansu, China
| | - Zhenbin Chen
- State
Key Laboratory of Advanced Processing and Recycling of Nonferrous
Metals, Lanzhou University of Technology, Lanzhou 730050, Gansu, China
- School
of Materials Science and Engineering, Lanzhou
University of Technology, Lanzhou 730050, Gansu, China
| | - Xiaoming Li
- Baiyin
Research Institute of Novel Materials of Lanzhou University of Technology, Baiyin 730900, Gansu, China
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