Facile Synthesis of Porous Organic Polymer/Chitosan Composites and the Removal Effect of Hg(Ⅱ)

SHEN Rujia; XU Naicen; SHI Lei; HUANG Haibo; CHEN Haiying; ZHANG Jing; SHEN Jialin; LI Hualing; CHEN Yali

doi:10.15898/j.ykcs.202211170219

2024 Vol. 43, No. 2

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Article navigation > Rock and Mineral Analysis > 2024 > 43(2): 289-301

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SHEN Rujia, XU Naicen, SHI Lei, HUANG Haibo, CHEN Haiying, ZHANG Jing, SHEN Jialin, LI Hualing, CHEN Yali. Facile Synthesis of Porous Organic Polymer/Chitosan Composites and the Removal Effect of Hg(Ⅱ)[J]. Rock and Mineral Analysis, 2024, 43(2): 289-301. doi: 10.15898/j.ykcs.202211170219

Citation:

SHEN Rujia, XU Naicen, SHI Lei, HUANG Haibo, CHEN Haiying, ZHANG Jing, SHEN Jialin, LI Hualing, CHEN Yali. Facile Synthesis of Porous Organic Polymer/Chitosan Composites and the Removal Effect of Hg(Ⅱ)[J]. Rock and Mineral Analysis, 2024, 43(2): 289-301. doi: 10.15898/j.ykcs.202211170219

Facile Synthesis of Porous Organic Polymer/Chitosan Composites and the Removal Effect of Hg(Ⅱ)

1.
Nanjing Center, China Geological Survey; East China Geological Science and Technology Innovation Center, Nanjing 210016, China
2.
Huaihe River Basin Joint Laboratory of Natural Resources and Ecological Environment Science, Nanjing 210016, China
3.
Huaihe Valley Ecology and Environment Administration, Ministry of Ecology and Environment, Benbu 233060, China

More Information

Corresponding authors: SHEN Jialin, sjlilu@163.com ; LI Hualing, lihualing1980@163.com

Received Date: 17 November 2022

Revised Date: 30 January 2024

Accepted Date: 07 February 2024

Publish Date: 30 April 2024

Abstract

Abstract

Specific porous structures and heteroatom-doped adsorbents have great importance in improving the adsorption performance of heavy metal ions. Traditional porous organic polymer materials are mostly synthesized in solvents in the form of powder, so it is significant to develop a highly efficient adsorption material and apply it to the adsorption and removal of Hg(Ⅱ). In the research, S-doped porous organic polymer (TpTU) and chitosan (CS) composites TpTU@CS were prepared by using 1,3,5-trialaldehyde phloroglucinol (Tp) and thiourea (TU) by a simple and rapid mechanical grinding method. The TpTU@CS composites were characterized by X-ray diffraction spectroscopy, N₂ adsorption-desorption, scanning electron microscope and Fourier transform infrared spectroscopy. Due to the introduction of the −C=S− group into the molecular network, the synthesized TpTU@CS has high adsorption selectivity and affinity for Hg(Ⅱ) in aqueous solution, with high adsorption capacity (249.21mg/g) and fast adsorption kinetics (10min). Through the characterization analysis, it is concluded that the main mechanism of trapping Hg(Ⅱ) by TpTU@CS is the bonding between S and Hg in C=S and the coordination interaction between C−N and Hg(Ⅱ). Meanwhile, the composite TpTU@CS has a high removal capacity (77.0%−100.0%) of Hg(Ⅱ) for both the actual samples and the marked samples. The BRIEF REPORT is available for this paper athttp://www.ykcs.ac.cn/en/article/doi/10.15898/j.ykcs.202211170219.
- porous organic polymer /
- composite microsphere /
- mercury /
- structural characterization /
- adsorption property /
- X-ray photoelectron spectroscopy

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References

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