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Effects of modification and calcination conditions on the adsorption performance of red mud for low-concentration formaldehyde in air

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Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The effects of modification and calcination conditions on the performance of red mud (RM) to absorb low-concentration formaldehyde in air were investigated using a fixed-bed flow reactor. The results show that the adsorption of RM for formaldehyde increases upon decreasing calcination temperature, with the optimum calcination temperature of 300 °C. H 2O2 modification can improve the adsorption performance, with the optimum modification concentration at 20 wt. %. Pore structure analysis indicated that low-temperature calcination improves the formation of micropores (0.9 nm to 2.7 nm), and maximizes the specific surface area and total pore volume thereby facilitating formaldehyde adsorption.
Rocznik
Strony
47--57
Opis fizyczny
Bibliogr. 17 poz., tab., rys., wykr.
Twórcy
autor
  • School of Chemistry and Environment, Beihang University, Beijing 100191, PR China
autor
  • School of Chemistry and Environment, Beihang University, Beijing 100191, PR China
autor
  • School of Chemistry and Environment, Beihang University, Beijing 100191, PR China
autor
  • School of Chemistry and Environment, Beihang University, Beijing 100191, PR China
autor
  • School of Chemistry and Environment, Beihang University, Beijing 100191, PR China
Bibliografia
  • [1] DUDZIŃSKA M.R., STASZOWSKA A., POLEDNIK B., Preliminary study of effect of furniture and finishing materials on formaldehyde concentration in office rooms, Environ. Prot. Eng., 2009, 35, 225.
  • [2] ZHANG P., LIU J., Photocatalytic degradation of trace hexane in the gas phase with and without ozone addition: kinetic study, J. Photochem. Photobiol. A, 2004, 167, 87.
  • [3] SHIRAISHI F., YAMAGUCHI S., OHBUCHI Y., A rapid treatment of formaldehyde in a highly tight room using a photocatalytic reactor combined with a continuous adsorption and desorption apparatus, Chem. Eng. Sci., 2003, 58, 929.
  • [4] KIM S.B., HONG S.C.,Kinetic study for photocatalytic degradation of volatile organic compounds in air using thin film TiO2 photocatalyst, Appl. Catal., B, 2002, 35, 305.
  • [5] ZHANG C.B., HONG H., TANAKA K.I., Perfect catalytic oxidation of formaldehyde over a Pt/TiO2 catalyst at room temperature, Catal. Commun., 2005, 6, 211
  • [6] ODA T., Non-thermal plasma processing for environmental protection: decomposition of dilute VOCs in air, J. Electrostatics, 2003, 57, 293.
  • [7] MISTA W., KACPRZYK R., Decomposition of toluene using non-thermal plasma reactor at room temperature, Catal. Today, 2008, 137, 345.
  • [8] ZHANG S., LIU C., LUAN Z., PENG H., REN H., WANG J., Arsenate removal from aqueous solutions using modified red mud, J. Hazard. Mater., 2008, 152, 486.
  • [9] WANG S., ANG H.M., TADE M.O., Novel applications of red mud as coagulant, adsorbent and catalyst for environmentally benign processes, Chemosphere, 2008, 72, 1621.
  • [10] KUMAR S., KUMAR R., BANDOPADHYAY A., Innovative methodologies for the utilisation of wastes from metallurgical and allied industries, Resour. Conserv. Recy., 2006, 48, 301.
  • [11] LOMBI E., ZHAO F.J., WIESHAMMER G., ZHANG G., MCGRATH S.P., In situ fixation of metals in soils using bauxite residue: biological effects, Environ. Pollut., 2002, 118, 445.
  • [12] TSAKIRIDIS P.E., AGATZINI-LEONARDOU S., OUSTADAKIS P., Titanium leaching from red mud by diluted sulfuric acid at atmospheric pressure, J. Hazard. Mater., 2004, 116, 103.
  • [13] YANG H., CHEN C., PAN L., LU H., SUN H., HU X., Preparation of double-layer glassceramic/ceramic tile from bauxite tailings and red mud, J. Eur. Ceram. Soc., 2009, 29, 1887.
  • [14] CENGELOGLU Y., KIR E., ERSOZ M., BUYUKERKEK T., GEZGIN S., Recovery and concentration of metals from red mud by Donnan dialysis, Coll. Surf. A: Physiochem. Eng. Aspects, 2003, 223, 95.
  • [15] CHEN S.G., YANG R.T., Theoretical investigation of relationships between characteristic energy and pore size for adsorption in micropores, J. Colloid Interface Sci., 1996, 177, 298.
  • [16] LIU B.G., Study of indoor formaldehyde, Scavenger Northern Environ., 2011, 7, 225.
  • [17] EVERETT D.H., POWL J.C., Heterogeneous Ion Exchange in a Flowing System, J. Chem. Soc., Faraday Trans. 1, 1996,72, 619
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-b0f1d069-b318-4e54-ab88-c7d9f93fcb74
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