|
1
|
Physicochemical properties of TIO2, ZrO2, Fe3O4 nanocrystalline adsorbents and photocatalysts. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02433-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
|
2
|
Preparation of novel bifunctionalized magnetic nanoparticles for sequential speciation analysis of inorganic arsenic. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
|
3
|
Yan J, Zhang C, Wang C, Lu D, Chen S. Syringe Membrane Micro-Solid-Phase Extraction (SPE) with Flexible Titanium(IV) Oxide@Silica Nanofiber Membrane for the Speciation of Te(IV) and Te(VI) with Graphite Furnace Atomic Absorption Spectrometry (GFAAS). ANAL LETT 2022. [DOI: 10.1080/00032719.2022.2087228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Juntao Yan
- College of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Chenghao Zhang
- College of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Chunlei Wang
- College of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Dengbo Lu
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Shizhong Chen
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
| |
Collapse
|
|
4
|
Wang S, Liu Y, Yang A, Zhu Q, Sun H, Sun P, Yao B, Zang Y, Du X, Dong L. Xanthate-Modified Magnetic Fe3O4@SiO2-Based Polyvinyl Alcohol/Chitosan Composite Material for Efficient Removal of Heavy Metal Ions from Water. Polymers (Basel) 2022; 14:polym14061107. [PMID: 35335438 PMCID: PMC8951190 DOI: 10.3390/polym14061107] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/02/2022] [Accepted: 03/03/2022] [Indexed: 02/04/2023] Open
Abstract
Chitosan has several shortcomings that limit its practical application for the adsorption of heavy metals: mechanical instability, a challenging separation and recovery process, and low equilibrium capacity. This study describes the synthesis of a magnetic xanthate-modified polyvinyl alcohol and chitosan composite (XMPC) for the efficient removal and recovery of heavy metal ions from aqueous solutions. The XMPC was synthesized from polyvinyl alcohol, chitosan, and magnetic Fe3O4@SiO2 nanoparticles. The XMPC was characterized, and its adsorption performance in removing heavy metal ions was studied under different experimental conditions. The adsorption kinetics fit a pseudo-second-order kinetic model well. This showed that the adsorption of heavy metal ions by the XMPC is a chemical adsorption and is affected by intra-particle diffusion. The equilibrium adsorption isotherm was well described by the Langmuir and Freundlich equations. The XMPC reached adsorption equilibrium at 303 K after approximately 120 min, and the removal rate of Cd(II) ions was 307 mg/g. The composite material can be reused many times and is easily magnetically separated from the solution. This makes the XMPC a promising candidate for widespread application in sewage treatment systems for the removal of heavy metals.
Collapse
Affiliation(s)
- Shifan Wang
- School of Material and Chemistry Engineering, Xuzhou University of Technology, Xuzhou 221018, China; (S.W.); (Y.L.); (A.Y.); (Q.Z.); (H.S.); (B.Y.); (Y.Z.); (X.D.)
| | - Yuan Liu
- School of Material and Chemistry Engineering, Xuzhou University of Technology, Xuzhou 221018, China; (S.W.); (Y.L.); (A.Y.); (Q.Z.); (H.S.); (B.Y.); (Y.Z.); (X.D.)
| | - Aiwen Yang
- School of Material and Chemistry Engineering, Xuzhou University of Technology, Xuzhou 221018, China; (S.W.); (Y.L.); (A.Y.); (Q.Z.); (H.S.); (B.Y.); (Y.Z.); (X.D.)
| | - Qi Zhu
- School of Material and Chemistry Engineering, Xuzhou University of Technology, Xuzhou 221018, China; (S.W.); (Y.L.); (A.Y.); (Q.Z.); (H.S.); (B.Y.); (Y.Z.); (X.D.)
| | - Hua Sun
- School of Material and Chemistry Engineering, Xuzhou University of Technology, Xuzhou 221018, China; (S.W.); (Y.L.); (A.Y.); (Q.Z.); (H.S.); (B.Y.); (Y.Z.); (X.D.)
| | - Po Sun
- Analysis and Testing Central Facility, Anhui University of Technology, Maanshan 243032, China;
| | - Bing Yao
- School of Material and Chemistry Engineering, Xuzhou University of Technology, Xuzhou 221018, China; (S.W.); (Y.L.); (A.Y.); (Q.Z.); (H.S.); (B.Y.); (Y.Z.); (X.D.)
| | - Yunxiao Zang
- School of Material and Chemistry Engineering, Xuzhou University of Technology, Xuzhou 221018, China; (S.W.); (Y.L.); (A.Y.); (Q.Z.); (H.S.); (B.Y.); (Y.Z.); (X.D.)
| | - Xihua Du
- School of Material and Chemistry Engineering, Xuzhou University of Technology, Xuzhou 221018, China; (S.W.); (Y.L.); (A.Y.); (Q.Z.); (H.S.); (B.Y.); (Y.Z.); (X.D.)
| | - Liming Dong
- School of Material and Chemistry Engineering, Xuzhou University of Technology, Xuzhou 221018, China; (S.W.); (Y.L.); (A.Y.); (Q.Z.); (H.S.); (B.Y.); (Y.Z.); (X.D.)
- Correspondence:
| |
Collapse
|