Abstract
Dichlorodifluoromethane (CFC-12) is one of the typical compounds currently studied in the problem of Freon, which is responsible for the destruction of the ozone layer and abnormal climate change. Al2O3/ZrO2 solid catalyst was prepared, and the effects of the molar ratio of Al2O3 and ZrO2, calcination temperature, calcination time, and catalyst dosage of the catalyst on the decomposition rate of CFC-12 were studied. The results showed that the best conditions for the preparation of catalyst were as follows: molar ratio of Al2O3 to ZrO2 was 1, calcination temperature was 800 ℃, calcination time was 2 h, and the amount of catalyst was 1 g. The hydrolysis rate of CFC-12 composite material could reach 98.75%. The characteristics of the catalysts were characterized by XRD, XPS, SEM, EDS, BET, CO2-TPD and NH3-TPD.
Graphical Abstract
Similar content being viewed by others
References
Ma L, Shang L, Zhong D et al (2017) Experimental investigation of a two-phase closed thermosyphon charged with hydrocarbon and Freon refrigerants. Appl Energy 207:665–673
Dameris M (2010) Climate change and atmospheric chemistry: how will the stratospheric ozone layer develop? Angew Chem Int Ed Engl 49:8092–8102
You Y, Zhou D (1991) Environmental protection and CFCs prohibition. 3:63–69
Williams SM (1990) The protection of the ozone layer in Contemporary International Law. Int Relat 10:167–178
Takita Y, Ishihara T (1998) Catalytic decomposition of CFCs. Catal Surv Jpn 2(2):165–173
Dixon RK (2011) Global environment facility investments in the phase-out of ozone-depleting substances. Orig Artic 16:567–584
Dameris M (2010) Depletion of the ozone layer in the 21st century. Angew Chem Int Ed Engl 49:489–491
Godin-Beekmann S, Newman PA, Petropavlovskikh I (2018) 30th anniversary of the Montreal Protocol: from the safeguard of the ozone layer to the protection of the Earth’s climate. Comptes rendus 350:331–333
McCulloch A, Midgley PM, Ashford P (2003) Releases of refrigerant gases (CFC-12, HCFC-22 and HFC-134a) to the atmosphere. Atmos Environ 37:889–902
Kundu SK, Kennedy EM, Mackie JC et al (2016) Experimental investigation of the reaction of HCFC-22 and methane in a dielectric barrier discharge non-equilibrium plasma. Chem Eng J 301:73–82
Spiess FJ, Chen X, Brock SL et al (2000) Destruction of freons by the use of high-voltage glow plasmas. Am Chem Soc 104(47):11111–11120
Yoshio N, Kyozo H, Kenji O et al (1995) Decomposition of chlorofluorocarbon CFC-113 in water by ultrasonic irradiation. Chem Lett 24:203–204
Mu H (2003) Harmless treatment of freon and fluorine containing waste by plasma chemistry. Organ Fluorine Ind 56–58
Ning P, Wang X, Bart HJ et al (2010) Catalytic decomposition of CFC-12 over solid super acid Mo2O3 ZrO2. Environ Eng 136(12):1418–1423
Piirila P, Espo T, Pfaffli P et al (2003) Prolonged respiratory symptoms caused by thermal degradation products of freons. Scand J Work Environ Health 29:71–77
Moiseev MI, Zhukov VE, Pavlenko AN (2018) Propagation of a self-sustaining evaporation front in freon mixtures. J Eng Thermophys 27:379–386
Ren G, Jia L, Zhao G et al (2019) Catalytic decomposition of dichlorodifluoromethane (CFC-12) over MgO/ZrO2 solid base catalyst. Catal Lett 149:507–512
Ren G, Zhou T, Zhiqian L et al (2019) Catalytic hydrolysis of dichlorodifluoromethane (CFC-12) over CaO/ZrO2 solid base catalyst. J Mol Catal (China) 33:253–261
Chen R, Jia W, Wang Y et al (2019) Optimization of the microstructure and properties of Al2O3–ZrO2 reticulated porous ceramics via in-situ synthesis of mullite whiskers and flowing-liquid phase. Mater Lett 243:66–68
JiayueWang TZ, Gao T et al (2018) Different molar ratio Al2O3–ZrO study on properties of 2 composite films. Membr Sci Technol 38:84–89
Acknowledgements
This work was financially supported by the National Natural Science Foundation of China (Grant No. 51568068).
Funding
National Natural Science Foundation of China, Grant No. 51568068
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
There are no conflicts of interest.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Mao, J., Tana, X., Lia, Z. et al. Catalytic Hydrolysis of CCl2F2 by Catalyst Al2O3/ZrO2. Catal Lett 153, 2706–2717 (2023). https://doi.org/10.1007/s10562-022-04186-x
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10562-022-04186-x