Research progress of modified titanium oxide photocatalytic oxidation of elemental mercury and its influencing factors

doi:10.16085/j.issn.1000-6613.2021-0425

Abstract

Abstract:

Mercury is a highly toxic and useless element in coal. The prevention and control of mercury pollution in coal-fired flue gas has become a national focus and research hotspot. The titanium-based catalysts for photocatalytic mercury removal were systematically introduced, including morphology-controlled titanium, metal modified titanium, nonmetal modified titanium, semiconductor composite titanium, supported titanium. The photocatalytic mercury removal efficiency of titanium-based catalysts by different modifications was compared, and the effects of preparation method, light source, reaction temperature, flue gas composition and photocatalytic reactor on the mercury removal efficiency were discussed. Then, the reaction mechanism of photocatalytic mercury removal with titanium-based catalysts was summarized, and the potential application prospects and challenges of photocatalytic mercury removal from coal-fired flue gas were prospected, so as to provide reference for the prevention and control of the mercury pollution from coal-fired flue gas. It will be an important research and development trend to improve the catalyst modification methods and carry out pilot-scale experiments, which is also the key to realize the industrial application of photocatalytic oxidation mercury removal technology.

Key words: photocatalytic oxidation, mercury removal, titanium-based catalysts, coal-fired flue gas

摘要：

汞是煤中普遍存在的一种剧毒非必需元素，燃煤烟气汞污染防治已成为国家重点关注和研究热点。本文系统介绍了光催化氧化单质汞的氧化钛基催化剂，包括形貌调控氧化钛基催化剂、金属改性氧化钛基催化剂、非金属改性氧化钛基催化剂、半导体复合氧化钛基催化剂以及负载型氧化钛基催化剂等。比较了不同改性措施下氧化钛基催化剂光催化氧化单质汞效率，讨论了催化剂的制备方法、光源、反应温度、烟气组成以及光催化反应器等因素对其氧化单质汞效率的影响，总结了氧化钛基催化剂光催化氧化单质汞反应机理，展望了光催化脱除燃煤烟气汞的潜在应用前景与挑战，旨在为燃煤烟气汞污染防治提供参考。完善催化剂改性方法同时开展中试规模实验将会成为燃煤烟气光催化氧化单质汞的重要研究内容与发展趋势，同时也是实现光催化氧化单质汞技术工业化应用的关键。

关键词: 光催化氧化, 汞脱除, 氧化钛基催化剂, 燃煤烟气

CLC Number:

X773

GAO Tian, ZHANG Yili, XIONG Zhuo, ZHAO Yongchun, ZHANG Junying. Research progress of modified titanium oxide photocatalytic oxidation of elemental mercury and its influencing factors[J]. Chemical Industry and Engineering Progress, 2022, 41(2): 690-700.

高天, 张伊黎, 熊卓, 赵永椿, 张军营. 改性氧化钛光催化氧化单质汞性能及其影响因素研究进展[J]. 化工进展, 2022, 41(2): 690-700.

Figures/Tables 3

References 90

1	韩粉女, 钟秦. 燃煤烟气脱汞技术的研究进展[J]. 化工进展, 2011, 30(4): 878-885.
	HAN Fennü, ZHONG Qin. Research progress of removal of mercury from coal-fired flue gas[J]. Chemical Industry and Engineering Progress, 2011, 30(4): 878-885.
2	崔夏, 马丽萍, 邓春玲, 等. 燃煤烟气中汞去除的研究进展[J]. 化工进展, 2011, 30(7): 1607-1612, 1636.
	CUI Xia, MA Liping, DENG Chunling, et al. Research progress of removing mercury from coal-fired flue gas[J]. Chemical Industry and Engineering Progress, 2011, 30(7): 1607-1612, 1636.
3	陈博陶, 韩丽娜, 常丽萍, 等. 汞的吸附及氧化机理的理论研究进展[J]. 化工进展, 2017, 36(S1): 436-441.
	CHEN Botao, HAN Lina, CHANG Liping, et al. Theoretic research on the adsorption and oxidation mechanism of mercury[J]. Chemical Industry and Engineering Progress, 2017, 36(S1): 436-441.
4	TIAN H Z, ZHU C Y, GAO J J, et al. Quantitative assessment of atmospheric emissions of toxic heavy metals from anthropogenic sources in China: historical trend, spatial distribution, uncertainties, and control policies[J]. Atmospheric Chemistry and Physics, 2015, 15(17): 10127-10147.
5	WU Q R, WANG S X, LIU K Y, et al. Emission-limit-oriented strategy to control atmospheric mercury emissions in coal-fired power plants toward the implementation of the minamata convention[J]. Environmental Science & Technology, 2018, 52(19): 11087-11093.
6	XUE W L, ZHANG G W, XU X F, et al. Preparation of titania nanotubes doped with cerium and their photocatalytic activity for glyphosate[J]. Chemical Engineering Journal, 2011, 167(1): 397-402.
7	FUJISHIMA A, HONDA K. Electrochemical photolysis of water at a semiconductor electrode[J]. Nature, 1972, 238(5358): 37-38.
8	MONIZ S J A, SHEVLIN S A, MARTIN D J, et al. Visible-light driven heterojunction photocatalysts for water splitting – a critical review[J]. Energy & Environmental Science, 2015, 8(3): 731-759.
9	YULIATI L, YOSHIDA H. Photocatalytic conversion of methane[J]. Chemical Society Reviews, 2008, 37(8): 1592-1602.
10	YANG J P, MA S M, ZHAO Y C, et al. Elemental mercury removal from flue gas over TiO₂ catalyst in an internal-illuminated honeycomb photoreactor[J]. Industrial & Engineering Chemistry Research, 2018, 57(51): 17348-17355.
11	段钰锋, 朱纯, 佘敏, 等. 燃煤电厂汞排放与控制技术研究进展[J]. 洁净煤技术, 2019, 25(2): 1-17.
	DUAN Yufeng, ZHU Chun, SHE Min, et al. Research progress on mercury emission and control technologies in coal-fired power plants [J]. Clean Coal Technology, 2019, 25(2): 1-17.
12	JI Z Y, HUANG B B, GAN M, et al. Recent progress on the clean and sustainable technologies for removing mercury from typical industrial flue gases: a review[J]. Process Safety and Environmental Protection, 2021, 150: 578-593.
13	辛凤, 魏书洲, 张军峰, 等.燃煤烟气非碳基吸附剂脱汞研究进展[J]. 燃料化学学报, 2020, 48(12): 1409-1420.
	XIN Feng, WEI Shuzhou, ZHANG Junfeng, et al. Research progress on the removal of mercury from coal-fired flue gas by using non-carbon-based adsorbents[J]. Journal of Fuel Chemistry and Technology, 2020, 48(12): 1409-1420.
14	GUAN Y, LIU Y H, LYU Q, et al. Bismuth-based photocatalyst for photocatalytic oxidation of flue gas mercury removal: a review[J]. Journal of Hazardous Materials, 2021, 418: 126280-126280.
15	LIN M J, JING G H, SHEN H Z, et al. Mechanism of enhancement of photooxidation of Hg⁰ by CeO₂-TiO₂: effect of band structure on the formation of free radicals[J]. Chemical Engineering Journal, 2020, 382: 122827.
16	LIU D J, LI B, WU J, et al. Photocatalytic oxidation removal of elemental mercury from flue gas. A review[J]. Environmental Chemistry Letters, 2020, 18(2): 417-431.
17	DIEBOLD U. The surface science of titanium dioxide[J]. Surface Science Reports, 2003, 48(5/6/7/8): 53-229.
18	SANJINÉS R, TANG H, BERGER H, et al. Electronic structure of anatase TiO₂ oxide[J]. Journal of Applied Physics, 1994, 75(6): 2945-2951.
19	KAVAN L, GRÄTZEL M, GILBERT S E, et al. Electrochemical and photoelectrochemical investigation of single-crystal anatase[J]. Journal of the American Chemical Society, 1996, 118(28): 6716-6723.
20	ANPO M, YAMASHITA H, ICHIHASHI Y, et al. Photocatalytic reduction of CO₂ with H₂O on various titanium oxide catalysts[J]. Journal of Electroanalytical Chemistry, 1995, 396(1/2): 21-26.
21	LEE T G, BISWAS P. Kinetics of mercury capture using titania sorbents[J]. Journal of Aerosol Science, 1998, 29: S577-S578.
22	BISWAS P, OWENS T M, WU C Y. Control of toxic metal emissions from combustors using vapor phase sorbent materials[J]. Journal of Aerosol Science, 1995, 26(S1): S217-S218.
23	LEE T G, BISWAS P, HEDRICK E. Comparison of Hg⁰ capture efficiencies of three in situ generated sorbents[J]. AIChE Journal, 2001, 47(4): 954-961.
24	杨珊, 张军营, 赵永椿, 等. 纳米TiO₂-活性炭的制备及光催化脱汞初探[J]. 工程热物理学报, 2010, 31(2): 339-342.
	YANG Shan, ZHANG Junying, ZHAO Yongchun, et al. Pre-investigation of nanostructured TiO₂-activated carbon composite for photo catalytic oxidation removal of mercury vapor[J]. Journal of Engineering Thermophysics, 2010, 31(2): 339-342.
25	杨珊, 张军营, 袁媛, 等. 纳米TiO₂-硅酸铝纤维的制备及光催化脱汞研究[J]. 工程热物理学报, 2011, 32(1): 152-156.
	YANG Shan, ZHANG Junying, YUAN Yuan, et al. Composites of nano TiO₂-aluminium silicate fiber for photocatalytic removal of mercury vapor[J]. Journal of Engineering Thermophysics, 2011, 32(1): 152-156.
26	袁媛, 赵永椿, 张军营, 等. TiO₂-硅酸铝纤维纳米复合材料光催化脱硫脱硝脱汞的实验研究[J]. 中国电机工程学报, 2011, 31(11): 79-85.
	YUAN Yuan, ZHAO Yongchun, ZHANG Junying, et al. Study on photocatalytic experiments of desulfurization,denitrification and mercury removal using a TiO₂-aluminum silicate fiber nanocomposite[J]. Proceedings of the CSEE, 2011, 31(11): 79-85.
27	熊卓, 赵永椿, 张军营, 等. Ti基CO₂光催化还原及其影响因素研究进展[J]. 化工进展, 2013, 32(5): 1043-1052, 1162.
	XIONG Zhuo, ZHAO Yongchun, ZHANG Junying, et al. Research progress in photocatalytic reduction of CO₂ using titania-based catalysts[J]. Chemical Industry and Engineering Progress, 2013, 32(5): 1043-1052, 1162.
28	崔星, 石建稳, 陈少华. TiO₂光催化降解气态污染物的影响因素研究进展[J]. 化工进展, 2013, 32(10): 2377-2386.
	CUI Xing, SHI Jianwen, CHEN Shaohua.Influence factors of TiO₂ photocatalytic degradation of gaseous pollutants[J]. Chemical Industry and Engineering Progress, 2013, 32(10): 2377-2386.
29	LI Y, MURPHY P, WU C Y. Removal of elemental mercury from simulated coal-combustion flue gas using a SiO₂-TiO₂ nanocomposite[J]. Fuel Processing Technology, 2008, 89(6): 567-573.
30	LI Y, WU C Y. Role of moisture in adsorption, photocatalytic oxidation, and reemission of elemental mercury on a SiO₂- TiO₂ nanocomposite[J]. Environmental Science & Technology, 2006, 40(20): 6444-6448.
31	SHEN H Z, IE I R, YUAN C S, et al. The enhancement of photo-oxidation efficiency of elemental mercury by immobilized WO₃/TiO₂ at high temperatures[J]. Applied Catalysis B: Environmental, 2016, 195: 90-103.
32	SUN X M, WU J, TIAN F G, et al. Synergistic effect of surface defect and interface heterostructure on TiO₂/BiOIO₃ photocatalytic oxide gas-phase mercury[J]. Materials Research Bulletin, 2018, 103: 247-258.
33	WANG H Q, ZHOU S Y, XIAO L, et al. Titania nanotubes — a unique photocatalyst and adsorbent for elemental mercury removal[J]. Catalysis Today, 2011, 175(1): 202-208.
34	ZHUANG Z K, YANG Z M, ZHOU S Y, et al. Synergistic photocatalytic oxidation and adsorption of elemental mercury by carbon modified titanium dioxide nanotubes under visible light LED irradiation[J]. Chemical Engineering Journal, 2014, 253: 16-23.
35	WANG L L, ZHAO Y C, ZHANG J Y. Comprehensive evaluation of mercury photocatalytic oxidation by cerium-based TiO₂ nanofibers[J]. Industrial & Engineering Chemistry Research, 2017, 56(14): 3804-3812.
36	TSAI C Y, LIU C W, HSI H C, et al. Synthesis of Ag-modified TiO₂ nanotube and its application in photocatalytic degradation of dyes and elemental mercury[J]. Journal of Chemical Technology & Biotechnology, 2019, 94(10): 3251-3262.
37	WU J, LI X, REN J X, et al. Experimental study of TiO₂ hollow microspheres removal on elemental mercury in simulated flue gas[J]. Journal of Industrial and Engineering Chemistry, 2015, 32: 49-57.
38	ZHOU J S, HOU W H, QI P, et al. CeO₂-TiO₂ sorbents for the removal of elemental mercury from syngas[J]. Environmental Science & Technology, 2013, 47(17): 10056-10062.
39	WU J, LI C E, ZHAO X Y, et al. Photocatalytic oxidation of gas-phase Hg⁰ by CuO/TiO₂[J]. Applied Catalysis B: Environmental, 2015, 176/177: 559-569.
40	LEE W, BAE G N. Removal of elemental mercury Hg⁰ by nanosized V₂O₅/TiO₂ catalysts[J]. Environmental Science & Technology, 2009, 43(5): 1522-1527.
41	CHEN S S, HSI H C, NIAN S H, et al. Synthesis of N-doped TiO₂ photocatalyst for low-concentration elemental mercury removal under various gas conditions[J]. Applied Catalysis B: Environmental, 2014, 160/161: 558-565.
42	TSAI C Y, HSI H C, KUO T H, et al. Preparation of Cu-doped TiO₂ photocatalyst with thermal plasma torch for low-concentration mercury removal[J]. Aerosol and Air Quality Research, 2013, 13(2): 639-648.
43	TSAI C Y, PAN Y T, TSENG Y H, et al. Influence of carbon-functional groups with less hydrophilicity on a TiO₂ photocatalyst for removing low-level elemental mercury[J]. Sustainable Environment Research, 2017, 27(2): 70-76.
44	周思瑶. TiO₂基纳米管吸附-光催化氧化脱除燃煤烟气中单质汞的研究[D]. 杭州: 浙江大学, 2011.
	ZHOU Siyao. Adsorption-photocatalytic oxidation performance of TiO₂ based nanotubes in elemental mercury removal[D]. Hangzhou: Zhejiang University, 2011.
45	李忺. TiO₂基空心微球制备及其光催化脱除燃煤烟气汞的研究[D]. 上海: 上海电力学院, 2015.
	LI Xian. Study on the preparation of titanium oxide-based hollow microspheres and its photocatalytic removal of flue gas mercury[D]. Shanghai: Shanghai University of Electric Power, 2015.
46	RODRÍGUEZ S, ALMQUIST C, LEE T G, et al. A mechanistic model for mercury capture with in situ-generated titania particles: role of water vapor[J]. Journal of the Air & Waste Management Association, 2004, 54(2): 149-156.
47	SALEHIFAR N, NIKFARJAM A. Improvement the visible light photocatalytic activity of gold nanoparticle, Co₂O₃ and nitrogen doped TiO₂ nanofibers[J]. Materials Letters, 2017, 188: 59-62.
48	LENZI G G, FÁVERO C V B, COLPINI L M S, et al. Photocatalytic reduction of Hg(Ⅱ) on TiO₂ and Ag/TiO₂ prepared by the sol-gel and impregnation methods[J]. Desalination, 2011, 270(1/2/3): 241-247.
49	TSAI C Y, KUO T H, HSI H C. Fabrication of Al-doped TiO₂ visible-light photocatalyst for low-concentration mercury removal[J]. International Journal of Photoenergy, 2012, 2012: 1-8.
50	LIU Y, WANG Y J, WANG H Q, et al. Catalytic oxidation of gas-phase mercury over Co/TiO₂ catalysts prepared by sol-gel method[J]. Catalysis Communications, 2011, 12(14): 1291-1294.
51	YU J G, XIANG Q J, ZHOU M H. Preparation, characterization and visible-light-driven photocatalytic activity of Fe-doped titania nanorods and first-principles study for electronic structures[J]. Applied Catalysis B: Environmental, 2009, 90(3/4): 595-602.
52	代学伟, 吴江, 齐雪梅, 等. Fe掺杂TiO₂催化剂制备及其光催化脱汞机理[J]. 环境科学研究, 2014, 27(8): 827-834.
	DAI Xuewei, WU Jiang, QI Xuemei, et al. Preparation of Fe-doped titania by sol-gel method and photocatalytic removal of gaseous mercury[J]. Research of Environmental Sciences, 2014, 27(8): 827-834.
53	TSAI C Y, LIU C W, LAI L C, et al. Fabrication and characterization of tin-modified TNT via different tin compounds treatment[J]. Materials Research Bulletin, 2018, 97: 222-231.
54	LINSEBIGLER A L, LU G Q, YATES J T JR. Photocatalysis on TiO₂ surfaces: principles, mechanisms, and selected results[J]. Chemical Reviews, 1995, 95(3): 735-758.
55	GUAN Y, HU T, WU J, et al. Enhanced photocatalytic activity of TiO₂/graphene by tailoring oxidation degrees of graphene oxide for gaseous mercury removal[J]. Korean Journal of Chemical Engineering, 2019, 36(1): 115-125.
56	HSI H C, TSAI C Y. Preparation of oxygen-vacant TiO_2-_x and activated carbon fiber composite using a single-step thermal plasma method for low-concentration elemental mercury removal[J]. Chemical Engineering Journal, 2012, 200/201/202: 18-24.
57	张冲, 吴江, 陈先托. 铈碳共掺杂TiO₂脱除烟气汞的实验研究[J]. 上海电力学院学报, 2016, 32(2): 135-139.
	ZHANG Chong, WU Jiang, CHEN Xiantuo. Experiment research of mercury removal using Ce,C-TiO₂ from flue gas[J]. Journal of Shanghai University of Electric Power, 2016, 32(2): 135-139.
58	CHEN D M, JIANG Z Y, GENG J Q, et al. Carbon and nitrogen co-doped TiO₂ with enhanced visible-light photocatalytic activity[J]. Industrial & Engineering Chemistry Research, 2007, 46(9): 2741-2746.
59	XU J, WEI Y L, HUANG Y F, et al. Solvothermal synthesis nitrogen doped SrTiO₃ with high visible light photocatalytic activity[J]. Ceramics International, 2014, 40(7): 10583-10591.
60	HONG X T, WANG Z P, CAI W M, et al. Visible-light-activated nanoparticle photocatalyst of iodine-doped titanium dioxide[J]. Chemistry of Materials, 2005, 17(6): 1548-1552.
61	OHNO T, MITSUI T, MATSUMURA M. Photocatalytic activity of S-doped TiO₂ photocatalyst under visible light[J]. Chemistry Letters, 2003, 32(4): 364-365.
62	UMEBAYASHI T, YAMAKI T, TANAKA S, et al. Visible light-induced degradation of methylene blue on S-doped TiO₂[J]. Chemistry Letters, 2003, 32(4): 330-331.
63	杨振美. 非金属改性TiO₂光催化氧化脱除烟气中零价汞的实验研究[D]. 杭州: 浙江大学, 2014.
	YANG Zhenmei. Experimental study on photocatalytic oxidation of elemental mercurv by nonmetal-doped TiO₂[D]. Hangzhou: Zhejiang University, 2014.
64	TSENG I H, WU J C S. Chemical states of metal-loaded titania in the photoreduction of CO₂[J]. Catalysis Today, 2004, 97(2/3): 113-119.
65	YUAN Y, ZHAO Y C, LI H L, et al. Electrospun metal oxide-TiO₂ nanofibers for elemental mercury removal from flue gas[J]. Journal of Hazardous Materials, 2012, 227/228: 427-435.
66	袁媛, 张军营, 樊国祥, 等. 静电纺丝法制备TiO₂-WO₃纳米纤维及光催化脱汞的研究[J]. 中国电机工程学报, 2012, 32(32): 44-49.
	YUAN Yuan, ZHANG Junying, FAN Guoxiang, et al. Electrospun TiO₂-WO₃ nanofibers for photocatalytic removal of mercury[J]. Proceedings of the CSEE, 2012, 32(32): 44-49.
67	袁媛, 张军营, 赵永椿, 等. In₂O₃与CuO掺杂TiO₂纳米纤维光催化脱汞的研究[J]. 工程热物理学报, 2013, 34(12): 2405-2408.
	YUAN Yuan, ZHANG Junying, ZHAO Yongchun, et al. Photocatalytic removal of mercury using In₂O₃ or CuO doped TiO₂ nanofibers[J]. Journal of Engineering Thermophysics, 2013, 34(12): 2405-2408.
68	袁媛, 张军营, 赵永椿, 等. TiO₂-Ag₂O复合纳米纤维烟气脱汞实验研究[J]. 华中科技大学学报(自然科学版), 2012, 40(6): 99-103.
	YUAN Yuan, ZHANG Junying, ZHAO Yongchun, et al. Removing elemental mercury by TiO₂-Ag₂O nanofiber[J]. Journal of Huazhong University of Science and Technology (Natural Science Edition), 2012, 40(6): 99-103.
69	LI H L, LI Y, WU C Y, et al. Oxidation and capture of elemental mercury over SiO₂-TiO₂-V₂O₅ catalysts in simulated low-rank coal combustion flue gas[J]. Chemical Engineering Journal, 2011, 169(1/2/3): 186-193.
70	袁媛, 张军营, 李小龙, 等. TiO₂-V₂O₅纳米纤维光催化氧化烟气中的Hg⁰[J]. 化工学报, 2012, 63(S2): 69-75.
	YUAN Yuan, ZHANG Junying, LI Xiaolong, et al. Photocatalytic oxidation of Hg⁰ in flue gas using TiO₂-V₂O₅ nanofibers[J]. CIESC Journal, 2012, 63(S2): 69-75.
71	周肖. MO_x/TiO₂复合材料制备及其光催化脱汞实验研究[D]. 上海: 上海电力学院, 2018.
	ZHOU Xiao. Preparation of MO_x/TiO₂ composites and experimental study on photocatalytic oxidation of mercury[D]. Shanghai: Shanghai University of Electric Power, 2018.
72	JI L, SREEKANTH P M, SMIRNIOTIS P G, et al. Manganese oxide/titania materials for removal of NO_x and elemental mercury from flue gas[J]. Energy & Fuels, 2008, 22(4): 2299-2306.
73	PITONIAK E, WU C Y, LONDEREE D, et al. Nanostructured silica-gel doped with TiO₂ for mercury vapor control[J]. Journal of Nanoparticle Research, 2003, 5(3/4): 281-292.
74	LI Y, WU C Y. Kinetic study for photocatalytic oxidation of elemental mercury on a SiO₂-TiO₂ nanocomposite[J]. Environmental Engineering Science, 2007, 24(1): 3-12.
75	PITONIAK E, WU C Y, MAZYCK D W, et al. Adsorption enhancement mechanisms of silica-titania nanocomposites for elemental mercury vapor removal[J]. Environmental Science & Technology, 2005, 39(5): 1269-1274.
76	王路路. Hg/SO₂/NO_x的释放及其光催化氧化脱除机制的研究[D]. 武汉: 华中科技大学, 2018.
	WANG Lulu. Study on emissions of Hg/SO₂/NO_x and photocatalytic removal mechanisms[D]. Wuhan: Huazhong University of Science and Technology, 2018.
77	袁媛. 新型TiO₂基纳米材料一体化脱除燃煤烟气中多种污染物的研究[D]. 武汉: 华中科技大学, 2012.
	YUAN Yuan. Removal of multiple pollutants from coal combustion flue gas over novel TiO₂-based nanomaterials[D]. Wuhan: Huazhong University of Science and Technology, 2012.
78	杨珊. 纳米TiO₂复合物光催化氧化脱除单质汞的实验研究[D]. 武汉: 华中科技大学, 2009.
	YANG Shan. Investigation of nano TiO₂ composites for photocatalytic oxidation removal of mercury vapor[D]. Wuhan: Huazhong University of Science and Technology, 2009.
79	WANG X Q, ZHOU Y N, LI R, et al. Removal of Hg⁰ from a simulated flue gas by photocatalytic oxidation on Fe and Ce co-doped TiO₂ under low temperature[J]. Chemical Engineering Journal, 2019, 360: 1530-1541.
80	WU J, LI C E, CHEN X T, et al. Photocatalytic oxidation of gas-phase Hg⁰ by carbon spheres supported visible-light-driven CuO-TiO₂[J]. Journal of Industrial and Engineering Chemistry, 2017, 46: 416-425.
81	YUAN Y, ZHANG J Y, LI H L, et al. Simultaneous removal of SO₂, NO and mercury using TiO₂-aluminum silicate fiber by photocatalysis[J]. Chemical Engineering Journal, 2012, 192: 21-28.
82	谭增强, 刘豪, 邱建荣, 等. 榆木焦负载纳米TiO₂光催化剂的制备及其脱除单质汞的试验研究[J]. 中国电机工程学报, 2010, 30(29): 37-41.
	TAN Zengqiang, LIU Hao, QIU Jianrong, et al. Preparation of elm char/nano-TiO₂ photocatalyst and experimental studies on the removal of elemental mercury[J]. Proceedings of the CSEE, 2010, 30(29): 37-41.
83	LEE T G, BISWAS P, HEDRICK E. Overall kinetics of heterogeneous elemental mercury reactions on TiO₂ sorbent particles with UV irradiation[J]. Industrial & Engineering Chemistry Research, 2004, 43(6): 1411-1417.
84	HSI H C, TSAI C Y. Synthesis of TiO_2-_x visible-light photocatalyst using N₂/Ar/He thermal plasma for low-concentration elemental mercury removal[J]. Chemical Engineering Journal, 2012, 191: 378-385.
85	TSAI C Y, HSI H C, BAI H, et al. TiO_2-_x nanoparticles synthesized using He/Ar thermal plasma and their effectiveness on low-concentration mercury vapor removal[J]. Journal of Nanoparticle Research, 2011, 13(10): 4739-4748.
86	SHEN H Z, IE I R, YUAN C S, et al. Removal of elemental mercury by TiO₂ doped with WO₃ and V₂O₅ for their photo- and thermo-catalytic removal mechanisms[J]. Environmental Science and Pollution Research, 2016, 23(6): 5839-5852.
87	YU J C C, NGUYEN V H, LASEK J, et al. NO_x abatement from stationary emission sources by photo-assisted SCR: lab-scale to pilot-scale studies[J]. Applied Catalysis A: General, 2016, 523: 294-303.
88	马斯鸣. 蜂窝陶瓷光纤反应器光催化脱汞研究[D]. 武汉: 华中科技大学, 2017.
	MA Siming. Enhanced photo-catalytic oxidation of elemental mercury using fiber-illuminated honeycomb photoreactor[D]. Wuhan: Huazhong University of Science and Technology, 2017.
89	YU Y H, PAN Y T, WU Y T, et al. Photocatalytic NO reduction with C₃H₈ using a monolith photoreactor[J]. Catalysis Today, 2011, 174(1): 141-147.
90	WANG L L, ZHAO Y C, ZHANG J Y. Electrospun cerium-based TiO₂ nanofibers for photocatalytic oxidation of elemental mercury in coal combustion flue gas[J]. Chemosphere, 2017, 185: 690-698.

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