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Synthesis of a magnetic ionic liquid ([C12mim]FeCl4) and its interactions with low-rank coal

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
he large number of oxygen-containing functional groups present on the surface of low-grade coal contribute to its strong hydrophilic properties and rendering coal beneficiation by flotation challenging. In this study, a magnetic ionic liquid (IL), [C12mim]FeCl4, was developed as a green medium to treat low-rank coal. Notably, the IL can be recovered using a magnetic field. The interactions between the low-rank coal and the IL were analyzed, and the structure and properties of [C12mim]FeCl4 were characterized using Raman spectroscopy, Fourier-transform infrared (FT-IR) spectroscopy, and vibrating-sample magnetometry. Moreover, the effects of the newly prepared IL on the wetting properties of low-rank coal were studied using water contact angle measurements. The contact angle of the coal sample treated with the IL increased initially but decreased with subsequent increase in treatment time, indicating a change in coal wettability with time. The results from FT-IR analysis show that the changes in contact angles may be attributed to the changes to the oxygen-containing functional groups at the coal surface upon interaction with the IL, where the content of oxygen-containing functional groups in the treated coal sample initially decreased but subsequently increased with increase in treatment time. X-ray photoelectron spectroscopy analysis confirmed these results. Thus, it can be concluded that [C12mim]FeCl4 initially destroys the oxygen-containing functional groups at the coal surface, resulting in an increase in the water-coal contact angle but subsequently promoting oxidation of the coal surface, hence causing a reduction in the contact angle.
Słowa kluczowe
Rocznik
Strony
566--578
Opis fizyczny
Bibliogr. 41 poz., rys., tab., wykr.
Twórcy
autor
  • College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
autor
  • College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
autor
  • College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
autor
  • College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
autor
  • College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
  • National Engineering Laboratory for Coalmine Backfilling Mining, Shandong University of Science and Technology, Tai’an, Shandong 271019, China
autor
  • College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
autor
  • College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
autor
  • College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
Bibliografia
  • CAI, C. C., ZHANG, M. X. (2013). XPS Analysis of Carbon and Oxygen in Coking Coal with Different Density Intervals. Applied Mechanics & Materials, 347-350, 1239-1243.
  • CHEN, Y., XU, G., ALBIJANIC, B. (2017). Evaluation of SDBS surfactant on coal wetting performance with static methods: Preliminary laboratory tests. Energy Sources Part A Recovery Utilization & Environmental Effects, 39(3), 1-11.
  • CRAWFORD, R.J., MAINWARING, D.E. (2001). The influence of surfactant adsorption on the surface characterisation of Australian coals. Fuel, 80(3), 313-320.
  • CUMMINGS, J., SHAH, K., ATKON, R., MOGHTADERI, B. (2015). Physicochemical interactions of ionic liquids with coal; the viability of ionic liquids for pre-treatments in coal liquefaction. Fuel, 143, 244-252.
  • DEY, S. (2012). Enhancement in hydrophobicity of low rank coal by surfactants — A critical overview. Fuel Processing Technology, 94(1), 151-158.
  • DOBBELIN, M., TENA-ZAERA, R., MARCILLA, R., ITURRI, J., MOYA, S., POMPOSO, J.A., MECERREYES, D. (2010). Multiresponsive PEDOT–Ionic Liquid Materials for the Design of Surfaces with Switchable Wettability. Advanced Functional Materials, 19(20), 3326-3333.
  • GUTIERREZ-RODRIGUEZ, J.A., APLAN, F.F. (1984). The effect of oxygen on the hydrophobicity and floatability of coal. Colloids & Surfaces, 12(1), 27-51.
  • HAYASHI, S., HAMAGUCHI, H.O. (2005). Discovery of a Magnetic Ionic Liquid [bmim]FeCl4. Cheminform, 36(18), 1590-1591.
  • HE, X., WU, Y., PEI, X. (2008). Preparation, Characterization, and Tunable Wettability of Poly(ionic liquid) Brushes via Surface-Initiated Atom Transfer Radical Polymerization. Macromolecules, 41(13), 4615-4621.
  • LAN-YUN, W., SHU-GUANG, J., YONG-LIANG, X., WEI-QING, Z., WEN, K.L., ZHENG-YAN, W., TING-XIANG, C. (2011). Effect of Imidazolium Based Ionic Liquids on Coal Exothermic Oxidation by Thermal Analysis Experiments. Procedia Engineering, 26, 647-651.
  • LI, C., HUANG, Y., HUANG, H. (2015). Preparation and properties of magnetic ionic liquid. Journal of Northwest Polytechnic University(1), 76-80.
  • LI, X., YANG, F., ZHOU, Q., ZHANG, S. (2010). Synthesis and characterization of magnetic ionic liquid 1-methyl- 3-alkyl imidazole tetrhalide iron salt. Chinese journal of process engineering, 10(4), 788-794.
  • LI, Z., YU, W., YANG, C., ZHOU, A. (2013). Present situation and prospect of low rank coal quality improvement. Mining Machinery, 41(7), 1-6.
  • LIU, G., GU, D., LIU, H., GU, S. (2013). Synthesis of ionic liquid bisimidazole surfactant. Journal of Harbin Institute of Technology, 45(7), 72-78.
  • LIU, X., LIU, S., FAN, M., GUO, J., LI, B. (2018). Decrease in hydrophilicity and moisture readsorption of Manglai lignite using lauryl polyoxyethylene ether: Effects of the HLB and coverage on functional groups and pores. Fuel Processing Technology, 174, 33-40.
  • LYU, X., YOU, X., HE, M., ZHANG, W., WEI, H., LI, L., HE, Q. (2018). Adsorption and molecular dynamics simulations of nonionic surfactant on the low rank coal surface. Fuel, 211, 529-534.
  • MA, L., WANG, D., KANG, W., XIN, H., DOU, G. (2019). Comparison of the staged inhibitory effects of two ionic liquids on spontaneous combustion of coal based on in situ FTIR and micro-calorimetric kinetic analyses. Process Safety & Environmental Protection.
  • MALHORTA, D., RIGGS, W.F. (1986). Chemical reagents in the mineral processing industry.
  • PAINTER, P., PULATI, N., CETINER, R., SOBKOWIAK, M., MITCHELL, G., MATHEWS, J. (2010). Dissolution and Dispersion of Coal in Ionic Liquids. Energy & Fuels, 24(3), 1848-1853.
  • PIETRZAK, R., WACHOWSKA, H. (2006). The influence of oxidation with HNO 3 on the surface composition of high- sulphur coals: XPS study. Fuel Processing Technology, 87(11), 1021-1029.
  • PRESENT, A. (2015). Effects of Oxygen Element and Oxygen-Containing Functional Groups on Surface Wettability of Coal Dust with Various Metamorphic Degrees Based on XPS Experiment. Journal of Analytical Methods in Chemistry, 2015(1), 467242.
  • PULATI, N., SOBKOWIAK, M., MATHEWS, J. P., PAINTER, P. (2012). Low temperature treatment of Illinois No. 6 coal in ionic liquids. Energy Fuels, 26(6), 3548-3552.
  • QI, X., WANG, D., XIN, H., QI, G. (2014). An In Situ Testing Method for Analyzing the Changes of Active Groups in Coal Oxidation at Low Temperatures. Spectroscopy Letters, 47(7), 495-503.
  • SHI, J., SUN, X., YANG, C., GAO, Q., LI, Y. (2002). Research progress of ionic liquid. chemical bulletin, 65(4), 243-250.
  • SUI, W., ZHANG, X., YANG, D. (2018). How to Measure the Magnetic Characteristics with Vibrating Sample Magnetometer. Experiment Science & Technology.
  • ARKHIPOV, V.A., PALEEV, D. Y., PATARKOV, Y.F., USANINA, A.S. (2011). Determination of contact angle on the coal surface. Journal of Mining Science, 47(5), 561-565.
  • WANG, L., XU, Y., JIANG, S., YU, M., CHU, T., ZHANG, W., WU, Z.Y., KOU, L. (2012). Imidazolium based ionic liquids affecting functional groups and oxidation properties of bituminous coal. Safety Science, 50(7), 1528-1534.
  • XIA, W., ZHANG, W. Characterization of surface properties of Inner Mongolia coal using FTIR and XPS. Energy Sources Part A Recovery Utilization & Environmental Effects, 39(7-12), 1191-1195.
  • XIAO, X., LIU, S., LIU, X., JIANG, S. (2005). Progress of ionic liquid and its application in separation and analysis. Analytical Chemistry, 33(4), 569-574.
  • XIE, Z. L., TAUBERT, A. (2011). Thermomorphic Behavior of the Ionic Liquids [C4mim][FeCl4] and [C12mim][FeCl4]. Chemphyschem, 12(2), 364-368.
  • XU, G., CHEN, Y., EKSTEEN, J., XU, J. (2018). Surfactant-aided coal dust suppression: A review of evaluation methods and influencing factors. Science of the Total Environment, 639, 1060.
  • YANG, X., ZHANG, Y., ZHOU, W., LI, Y., WANG, J. (2017). Synthesis and applications of ionic liquid surfactant (Ⅻ), microemulsion. Daily Chemical Industry, 47(12), 668-672.
  • YOU, X., HE, M., CAO, X., WANG, P., WANG, J., LI, L. (2019). Molecular dynamics simulations of removal of nonylphenol pollutants by graphene oxide: Experimental study and modelling. Applied Surface Science, 475, 621-626.
  • YOU, X., HE, M., ZHU, X., WEI, H., CAO, X., WANG, P., LI, L. (2019). Influence of surfactant for improving dewatering of brown coal: A comparative experimental and MD simulation study. Separation and Purification Technology, 210, 473-478.
  • ZHANG, W., JIANG, S., QIN, T., SUN, J., DONG, C., HU, Q. (2019). Effect of Ionic Liquid Surfactants on Coal Oxidation and Structure. J. Anal. Methods Chem., 1868265.
  • ZHANG, W., JIANG, S., SUN, J., WU, Z., TONG, Q., XIAN, X. (2018). Wettability of coal by room temperature ionic liquids. International Journal of Coal Preparation & Utilization(1), 1-10.
  • ZHANG, W., JIANG, S., WU, Z., WANG., K., SHAO, H., QIN., T., XI, X., TIAN, H. (2018). Influence of imidazolium-based ionic liquids on coal oxidation. Fuel, 217, 529-535.
  • ZHEN, L., HE, Y., WANG, W., CHENG, W., LIN, X. (2018). Experimental Study on the Pore Structure Fractals and Seepage Characteristics of a Coal Sample Around a Borehole in Coal Seam Water Infusion. Transport in Porous Media, 125(1–2), 1-21.
  • ZHONG, S., MOORE, J. E., SOUZA, I. Gyrotropic Magnetic Effect and the Magnetic Moment on the Fermi Surface. Physical Review Letters, 116(7), 077201.
  • ZHU., X, HE., M., ZHANG, W., WEI, H., LYU, X., WANG, Q., YOU, X., LI, L. (2020). Formulation design of microemulsion collector based on gemini surfactant in coal flotation. Journal of Cleaner Production, 120496.
  • ZHU, X., WEI, H., HOU, M., WANG, Q., YOU, X., LI, L. (2019). Thermodynamic behavior and flotation kinetics of an ionic liquid microemulsion collector for coal flotation. Fuel, 116627.
Uwagi
This work was supported by SDUST Research Fund (Grant No. 2018TDJH101), Key Research and Development Project of Shandong (Grant No. 2019GGX103035), National Natural Science Foundation of China (Grant No. 51904174), Young Science and Technology Innovation Program of Shandong Province (Grant No. 2020KJD001), and Project of Shandong Province Higher Educational Young Innovative Talent Introduction and Cultivation Team.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-0950b4bd-9b66-466d-9e1d-77a96c47a300
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