Citation: ZHANG Li-xiang, ZHANG An-chao, ZHU Qi-feng, WANG Hua, ZHANG Chun-jing. Effects of experimental parameters on Hg⁰ removal over magnetic AgI-BiOI/CoFe₂O₄ photocatalysts using wet process[J]. Journal of Fuel Chemistry and Technology, ;2018, 46(3): 365-374. shu

Effects of experimental parameters on Hg⁰ removal over magnetic AgI-BiOI/CoFe₂O₄ photocatalysts using wet process

1.
School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo 454000, China
2.
School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China

Corresponding author: ZHANG An-chao, anchaozhang@126.com
Received Date: 15 September 2017
Revised Date: 3 February 2018

Fund Project: the Outstanding Youth Science Foundation of Henan Polytechnic University J2016-1the Fundamental Research Funds for the Universities of Henan Province NSFRF140204The project was supported by the National Natural Science Foundation of China 51306046The project was supported by the National Natural Science Foundation of China 51676064The project was supported by the National Natural Science Foundation of China (51676064, 51306046, and U1404520), the Young Core Instructor Project in the Higher Education Institutions of Henan Province (2016GGJS-038), the Fundamental Research Funds for the Universities of Henan Province (NSFRF140204) and the Outstanding Youth Science Foundation of Henan Polytechnic University (J2016-1)the Young Core Instructor Project in the Higher Education Institutions of Henan Province 2016GGJS-038The project was supported by the National Natural Science Foundation of China U1404520

Figures(11)

A novel magnetic AgI-BiOI/CoFe₂O₄ hybrid composites were prepared via a solvothermal and subsequent coprecipitation method, and utilized to remove Hg⁰ from coal-fired flue gas under fluorescent light irradiation. The experimental parameters and main products presented in solution after reaction were investigated in detail. The experimental results showed that the AgI-BiOI/CoFe₂O₄ composites showing a poor thermal stability would transform into other compounds when the calcinated temperature was above 400℃. With the increases of photocatalyst dosage, reaction solution pH, temperature of reaction solution in reactor and O₂ concentration, the Hg⁰ removal efficiencies were first increased and then unchanged or decreased. The presences of inorganic anions such as CO₃^2- and SO₄^2- in solution exhibited some inhibitory effects on Hg⁰ removal. Furthermore, the presence of SO₂ had a dramatic inhibition on Hg⁰ removal, while the inhibitory effect of NO on Hg⁰ removal was relatively small. SO₄^2-, NO₃^- and Hg²⁺ species were the final oxidation products of SO₂, NO and Hg⁰ by reactive species.
- magnetically separable,
- AgI-BiOI/CoFe₂O₄,
- Hg⁰ removal,
- fluorescent light irradiation,
- experimental parameters
1. [1]
  YANG S J, GUO Y F, YAN N Q, WU D Q, HE H P, XIE J K, QU Z, JIA J P. Remarkable effect of the incorporation of titanium on the catalytic activity and SO₂ poisoning resistance of magnetic Mn-Fe spinel for elemental mercury capture[J]. Appl Catal B:Environ, 2011,10(3/4):698-708.
2. [2]
  ZHOU Q, DUAN Y F, HONG Y G, ZHU C, SHE M, ZHANG J, WEI H Q. Experimental and kinetic studies of gas-phase mercury adsorption by raw and bromine modified activated carbon[J]. Fuel Process Technol, 2015,134:325-332. doi: 10.1016/j.fuproc.2014.12.052
3. [3]
  YOU C F, XU X C. Coal combustion and its pollution control in China[J]. Energy, 2010,35(11):4467-4472. doi: 10.1016/j.energy.2009.04.019
4. [4]
  WU J, LI C E, ZHAO X Y, WU Q, QI X M, CHEN X T, HU T, CAO Y. Photocatalytic oxidation of gas-phase Hg⁰ by CuO/TiO₂[J]. Appl Catal B:Environ, 2015,176/177:559-569. doi: 10.1016/j.apcatb.2015.04.044
5. [5]
  ZHANG Hua-wei, CHEN Jiang-yan, ZHAO Ke, NIU Qing-xin, WANG Li. Removal of vapor-phase elemental mercury from simulated syngas using semi-coke modified by Mn/Ce doping[J]. J Fuel Chem Technol, 2016,44(4):394-400.
6. [6]
  HAN L N, HE X X, YUE C X, HU Y F, LI L N, CHANG L P, WANG H, WANG J C. Fe doping Pd/AC sorbent efficiently improving the Hg⁰ removal from the coal-derived fuel gas[J]. Fuel, 2016,182:64-72. doi: 10.1016/j.fuel.2016.05.046
7. [7]
  WANG F M, LI G L, SHEN B X, WANG Y Y, HE C. Mercury removal over the vanadia-titania catalyst in CO₂-enriched conditions[J]. Chem Eng J, 2015,263:356-363. doi: 10.1016/j.cej.2014.10.091
8. [8]
  JEON S H, EOM Y J, LEE T G. Photocatalytic oxidation of gas-phase elemental mercury by nanotitanosilicate fibers[J]. Chemosphere, 2008,71(5):969-974. doi: 10.1016/j.chemosphere.2007.11.050
9. [9]
  WU J, LI X, REN J X, QI X M, HE P, NI B, ZHANG C, HU C Z, ZHOU J. Experimental study of TiO₂ hollow microspheres removal on elemental mercury in simulated flue gas[J]. J Ind Eng Chem, 2015,32:49-57. doi: 10.1016/j.jiec.2015.07.019
10. [10]
  SNIDER G, ARIYA P. Photo-catalytic oxidation reaction of gaseous mercury over titanium dioxide nanoparticle surfaces[J]. Chem Phys Lett, 2010,491(1/3):23-28.
11. [11]
  SHEN H Z, IE I R, YUAN C S, HUNG C H, CHEN W H, LUO J J, JEN Y H. Enhanced photocatalytic oxidation of gaseous elemental mercury by TiO₂ in a high temperature environment[J]. J Hazard Mater, 2015,289:235-243. doi: 10.1016/j.jhazmat.2015.02.033
12. [12]
  YUAN Yuan, ZHANG Jun-ying, ZHAO Yong-chun, WANG Yu-xiang, ZHENG Chu-guang. Effects of SO₂ and NO on removal of elemental mercury using a TiO₂-aluminum silicate fiber[J]. J Fuel Chem Technol, 2012,40(5):630-635.
13. [13]
  LI Y, WU C Y. Kinetic study for photocatalytic oxidation of elemental mercury on a SiO₂-TiO₂ nanocomposite[J]. Environ Eng Sci, 2007,24(1):3-12. doi: 10.1089/ees.2007.24.3
14. [14]
  YUAN Y, ZHANG J Y, LI H L, LI Y, ZHAO Y C, ZHENG C G. Simultaneous removal of SO₂, NO and mercury using TiO₂-aluminum silicate fiber by photocatalysis[J]. Chem Eng J, 2012,192(2):21-28.
15. [15]
  QI X M, GU M L, ZHU X Y, WU J, LONG H M, HE K, WU Q. Fabrication of BiOIO₃ nanosheets with remarkable photocatalytic oxidation removal for gaseous elemental mercury[J]. Chem Eng J, 2016,285:11-19. doi: 10.1016/j.cej.2015.09.055
16. [16]
  DONG G H, HO W K, ZHANG L Z. Photocatalytic NO removal on BiOI surface:The change from nonselective oxidation to selective oxidation[J]. Appl Catal B:Environ, 2015,168(168/169):490-496.
17. [17]
  OU M, ZHONG Q, ZHANG S L, NIE H Y, LV Z J, CAI W. Graphene-decorated 3D BiVO₄ superstructure:Highly reactive (040) facets formation and enhanced visible-light-induced photocatalytic oxidation of NO in gas phase[J]. Appl Catal B:Environ, 2016,193:160-169. doi: 10.1016/j.apcatb.2016.04.029
18. [18]
  ZHANG A C, XING W B, ZHANG D, WANG H, CHEN G Y, XIANG J. A novel low-cost method for Hg⁰removal from flue gas by visible-light-driven BiOX (X=Cl, Br, I) photocatalysts[J]. Catal Commun, 2016,87:57-61. doi: 10.1016/j.catcom.2016.09.003
19. [19]
  ZHANG A C, ZHANG L X, CHEN X Z, ZHU Q F, LIU Z C, XIANG J. Photocatalytic oxidation removal of Hg⁰ using ternary Ag/AgI-Ag₂CO₃ hybrids in wet scrubbing process under fluorescent light[J]. Appl Surf Sci, 2017,392:1107-1116. doi: 10.1016/j.apsusc.2016.09.116
20. [20]
  ZHANG L X, ZHANG A C, LU H, SUN Z J, SHENG W, SUN L S, XIANG J. Magnetically separable AgI-BiOI/CoFe₂O₄ hybrid composites for Hg⁰ removal:Characterization, activity and mechanism[J]. RSC Adv, 2017,7(50):31448-31456. doi: 10.1039/C7RA04175F
21. [21]
  CHENG H F, HUANG B B, DAI Y, QIN X Y, ZHANG X Y. One-Step synthesis of the nanostructured AgI/BiOI composites with highly enhanced visible-light photocatalytic performances[J]. Langmuir, 2010,26(9):6618-6624. doi: 10.1021/la903943s
22. [22]
  YU C L, FAN C F, YU J C, ZHOU W Q, YANG K. Preparation of bismuth oxyiodides and oxides and their photooxidation characteristic under visible/UV light irradiation[J]. Mater Res Bull, 2011,46(1):140-146. doi: 10.1016/j.materresbull.2010.08.013
23. [23]
  CAO J, LI X, LIN H L, XU B Y, LUO B D, CHEN S F. Low temperature synthesis of novel rodlike Bi₅O₇I with visible light photocatalytic performance[J]. Mater Lett, 2012,76(6):181-183.
24. [24]
  RAUF M A, MARZOUKI N, KORBAHTI B K. Photolytic decolorization of Rose Bengal by UV/H₂O₂ and data optimization using response surface method[J]. J Hazard Mater, 2008,159(2/3):602-609.
25. [25]
  SANTIAGO D E, ARANA J, GONZÁLEZ-D O, ALEMÁN-D M E, ACOSTA-D A C, FERNANDEZ-R C, PÉREZ-P J, DONA-R J M. Effect of inorganic ions on the photocatalytic treatment of agro-industrial wastewaters containing imazalil[J]. Appl Catal B:Environ, 2014,156/157(3):284-292.
26. [26]
  CHEN J, HU Z, WANG D, GAO C, JI R. Photocatalytic mineralization of dimethoate in aqueous solutions using TiO₂:Parameters and by-products analysis[J]. Desalination, 2010,258(1):28-33.
27. [27]
  ZHAO Y, HAO R L. Macrokinetics of Hg⁰ removal by a vaporized multicomponent oxidant[J]. Ind Eng Chem Res, 2014,53(27):10899-10905. doi: 10.1021/ie5009376
28. [28]
  XIA D H, HU L L, HE C, PAN W Q, YANG T S, YANG Y C, SHU D. Simultaneous photocatalytic elimination of gaseous NO and SO₂ in a BiOI/Al₂O₃-padded trickling scrubber under visible light[J]. Chem Eng J, 2015,279:929-938. doi: 10.1016/j.cej.2015.05.097
29. [29]
  KIM J, LEE C W, CHOI W. Platinized WO₃ as an environmental photocatalyst that generates OH radicals under visible light[J]. Environ Sci Technol, 2010,44(17):6849-6854. doi: 10.1021/es101981r
30. [30]
  LIU Y X, ZHANG J, SHENG C D, ZHANG Y C, ZHAO L. Simultaneous removal of NO and SO₂ from coal-fired flue gas by UV/H₂O₂ advanced oxidation process[J]. Chem Eng J, 2010,162(3):1006-1011. doi: 10.1016/j.cej.2010.07.009
31. [31]
  LASEK J, YU Y H, WU J C S. Removal of NO_x by photocatalytic processes[J]. J Photochem Photobiol C, 2013,14(1):29-52.
32. [32]
  MCLARNON C R, GRANITE E J, PENNLINE H W. The PCO Process for photochemical removal of mercury from flue gas[J]. Fuel Process Technol, 2005,87(1):85-89. doi: 10.1016/j.fuproc.2005.07.001
33. [33]
  LIU Y X, ZHANG J, SHENG C D, ZHANG Y C, ZHAO L. Preliminary study on a new technique for wet removal of nitric oxide from simulated flue gas with an ultraviolet (UV)/H₂O₂ process[J]. Energy Fuels, 2010,24(9):4925-4930. doi: 10.1021/ef1006325
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沈阳化工大学材料科学与工程学院沈阳 110142

Effects of experimental parameters on Hg0 removal over magnetic AgI-BiOI/CoFe2O4 photocatalysts using wet process

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通讯作者: 陈斌, bchen63@163.com

Effects of experimental parameters on Hg⁰ removal over magnetic AgI-BiOI/CoFe₂O₄ photocatalysts using wet process