高级搜索

La3+/TiO2中空微球的制备及模型汽油光催化氧化脱硫性能

,  ,  ,  , 

downloadPDF

上一篇

下一篇

刘布雷, 张改, 高敏, 马爱洁, 陈卫星. La3+/TiO2中空微球的制备及模型汽油光催化氧化脱硫性能[J]. 环境工程学报, 2018, 12(12): 3371-3378. doi: 10.12030/j.cjee.201806135
引用本文: 刘布雷, 张改, 高敏, 马爱洁, 陈卫星. La3+/TiO2中空微球的制备及模型汽油光催化氧化脱硫性能[J]. 环境工程学报, 2018, 12(12): 3371-3378. doi: 10.12030/j.cjee.201806135
shu
LIU Bulei, ZHANG Gai, GAO Min, MA Aijie, CHEN Weixing. Preparation of La3+/TiO2 hollow microsphere and its photocatalytic oxidation desulfurization performance of model gasoline[J]. Chinese Journal of Environmental Engineering, 2018, 12(12): 3371-3378. doi: 10.12030/j.cjee.201806135
Citation: LIU Bulei, ZHANG Gai, GAO Min, MA Aijie, CHEN Weixing. Preparation of La3+/TiO2 hollow microsphere and its photocatalytic oxidation desulfurization performance of model gasoline[J]. Chinese Journal of Environmental Engineering, 2018, 12(12): 3371-3378. doi: 10.12030/j.cjee.201806135
shu

La3+/TiO2中空微球的制备及模型汽油光催化氧化脱硫性能

  • 1.

    西安工业大学材料与化工学院，西安 710021

  • 基金项目:

    国家自然科学青年基金资助项目(21501139 )

    陕西省自然科学基础研究计划重大基础研究项目（2017ZDJC-22）

Preparation of La3+/TiO2 hollow microsphere and its photocatalytic oxidation desulfurization performance of model gasoline

  • 1.

    School of Materials and Chemical Engineering, Xi’an Technological University, Xi’an 710021, China

  • Fund Project:

  • 摘要: 以碳球为模板，Ti (SO4) 2和 La (NO3) 3为原料，采用分段水热法制备了La3+/TiO2中空微球前驱体，在O2 气氛下，450 ℃煅烧得到La3+/TiO2中空微球。利用XRD、SEM、XPS和UV-vis等测试手段对其相组成，形貌和光吸收特性进行了表征与分析。通过噻吩模拟含硫污染物研究了其光催化氧化脱硫性能和光催化氧化反应机制。结果表明：分段水热法合成的La3+/TiO2中空微球光催化性能优于P25，促进了光生电子和空穴的分离，并将光响应范围扩展到可见光区；可见光照射210 min，模型汽油中含硫污染物的脱除率可达91.45%，实现了深度脱硫。
    Abstract: In this study, hollow La3+/TiO2 microsphere precursor was synthesized by segmented hydrothermal method when carbonsphere was taken as templates and Ti (SO4) 2, La (NO3) 3 were taken as raw materials. Then the La3+/TiO2 hollow microspheres were produced by calcining above precursor at 450 ℃ in O2 atmosphere. The crystal structure, morphology and light absorption properties of these microsphere catalysts were identified by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and ultraviolet-visible (UV-vis) spectroscopy. Through taking thiophene as the simulated sulfur-containing pollutant, their photocatalytic oxidation desulfurization performance and photocatalytic oxidation reaction mechanism were studied. The results show that the La3+/TiO2 hollow microspheres synthesized by segmented hydrothermal method promote the separation between photoelectron and hole and extend the light response to the visible light area, which have a better photocatalytic activity than P25. After 210 min visible light irradiation, the removal rate of sulfur contained pollutants in model gasoline can reach 91.45%, and a deep desulfurization was obtained.
  • 加载中
  • [1] PENG S, JIN G, LI L, et al.Multi-functional electrospun nanofibres for advances in ti-ssue regeneration, energy conversion & storage, and water treatment[J].Chemical Society Reviews,2016,45(5):1225-1231 10.1039/C5CS00777A
    [2] MARTíNEZHUITLE C A, RODRIGO M A, SIRéS I, et al.Single and coupled electrochemical processes and reactors for the abatement of organic water pollutants: A critical review[J].Chemical Reviews,2015,115(24):13362-13407 10.1021/acs.chemrev.5b00361
    [3] 刘威, 刘淑芝, 付海曦,等. 燃料油中噻吩类硫化物脱除技术研究进展[J]. 石化技术与应用,2009,27(1):67-71
    [4] KUBACKA A, FERNáNDEZGARCíA M, COLóN G.Advanced nanoarchitectures for solar photocatalytic applications[J].Chemical Reviews,2016,112(3):1555-1614 10.1021/cr100454n
    [5] LIU G, WANG L, YANG H G, et al.Titania-based photocatalysts crystal growth, doping and heterostructuring[J].Journal of Materials Chemistry,2010,20(5):831-843 10.1039/B909930A
    [6] LI T, LI Q, YAN J, et al.Facile fabrication of corrosion-resistant superhydrophobic and superoleophilic surfaces with MnWO4:Dy3+ microbouquets[J].Dalton Transactions,201-4,43(15):5801-5805 10.1039/C3DT52401A
    [7] ZHU S W, LI Q G, HUTTULA M.One-pot hydrothermal synthesis of BiVO4 microspheres with mixed crystal phase and Sm3+-doped BiVO4 for enhanced photocatalytic activity[J].Journal of Material Scicence,2017,52(3):1679-1693 10.1007/s10853-016-0460-0
    [8] AL-HAMDI A M, SILLANP?? M, DUTTA J.Intermediate formation during photodegradation of phenol using lanthanum doped tin dioxide nanoparticles[J].Research on Chemical Intermediates,2015,43(4):145-153 10.1007/s11164-015-2197-9
    [9] BINGAM S, and DAOUD W A.Recent advances in making nanosized TiO2 visiblelight active through rare-earth metal doping[J].Journal Materials Chemistry,2011,21:2041-2050 10.1039/C0JM02271C
    [10] LI J H, YANG X, YU X D.Rare earth oxide-doped titania nanocomposites with enhanced photocatalytic activity towards the degradation of partially hydrolysis polyacrylamide[J].Applied Surface Science,2009,255(6):3731-3738 10.1016/j.apsusc.2008.10.029
    [11] SHI Z L, ZHANG X Y, YAO S H.Synthesis and photocatalytic properties of lanthanum doped anatase TiO2 coated Fe3O4 composites[J].Rare Metals,2011,30(3):252-257 10.1007/s12598-011-0377-3
    [12] DOZZI M V, D’ANDREA C, OHTANI B, et al.Fluorine-doped TiO2 materials: Photocatalytic activity vs time-resolved photoluminescence[J].Journal of Physical Chemistry,2013,117(48):25586–25595 10.1021/jp4095563
    [13] WU G, WANG J, THOMAS D F, et al.Synthesis of F-doped flower-like TiO2 nanostructures with high photoelectrochemical activity[J].Langmuir,2008,24(7):3503-3510 10.1021/la703098g
    [14] JIANG J, ZHOU H, DING J, et al.Constructing inverse V-type TiO2-based photocatalyst via bio-template approach to enhance the photosynthetic water oxidation[J].Applied Surface Science,2015,347:368-377 10.1016/j.apsusc.2015.04.091
    [15] QIN X, TANG J, SHEN Y, et al.Hierarchical porous TiO2, fabricated from magnolia grandiflora petals templates for the immobilization and electrical wiring of proteins[J].Talanta,2015,144:6-12 10.1016/j.talanta.2015.05.081
    [16] CHAUDHURI R G, PARI A S.Visible light induced photocatalytic activity of sulfur-doped hollow TiO2 nanoparticles, synthesized via a novel route[J].Dalton Transation,2014,43:5526-5534 10.1039/C3DT53311E
    [17] YIN Y, LI S, WAN J.SnO2 hollow spheres: Polymer bead-templated hydrothermal synthesis and their electrochemical properties for lithium storage[J].Science China Chemistry,2012,55:1314-1318 10.1007/s11426-012-4659-x
    [18] ZHAO X, ZHANG Z, YANG F.Core–shell structured SnO2 hollow spherespolyanline composite as an anode for sodiumion batteries[J].RSC Advances,2015,5:31465-31471 10.1039/C5RA02834E
    [19] YU J, DAI G, CHENG B.Effect of crystallization methods on morphology and photocatalytic activity of anodized TiO2 nanotube array films[J].Journal of Physical Chemistry C, 2010,114(45):19378-19385 10.1021/jp106324x
    [20] 毛立群, 杨建军, 郭泉辉,等. 活性艳红X-3B水溶液的光化学与光催化协同脱色反应[J]. 催化学报,2001,22(2):181-184
    [21] 王艳芹, 张莉, 程虎民,等. 掺杂过渡金属离子的TiO2复合纳米粒子光催化剂：罗丹明B的光催化降解[J]. 高等学校化学学报,2000,21(6):958-960
    [22] LI J, LI B, LI J, et al.Visible-light-driven photocatalyst of La–N-codoped TiO2, nanophotocatalyst: Fabrication and its enhanced photocatalytic performance and mechanism[J].Journal of Industrial & Engineering Chemistry,2015,25:16-21 10.1016/j.jiec.2014.09.042
    [23] ZHOU X, ZHANG X N, FENG X B.Preparation of a La/N codoped TiO2 film electrode with visible light response and its photoelectrocatalytic activity on a Ni substrate[J].Dyes & Pigments,2016,125:375-383 10.1016/j.dyepig.2015.10.044
    [24] YAN L, TU H W, CHAN T S.Mechanistic study of simultaneous arsenic and fluoride removal using granular TiO2-La adsorbent[J].Chemical Engineering Journal,2017,313:983-992 10.1016/j.cej.2016.10.142
    [25] 张卫梅, 李巧玲.TiO2中空微球的制备及其对罗丹明B的光催化降解[J]. 化工环保,2015,35(6):630-633
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  2299
  • HTML全文浏览数:  2076
  • PDF下载数:  138
  • 施引文献:  0
出版历程
  • 刊出日期:  2018-11-29

La3+/TiO2中空微球的制备及模型汽油光催化氧化脱硫性能

  • 1. 西安工业大学材料与化工学院，西安 710021
基金项目:

国家自然科学青年基金资助项目(21501139 )

陕西省自然科学基础研究计划重大基础研究项目（2017ZDJC-22）

摘要: 以碳球为模板，Ti (SO4) 2和 La (NO3) 3为原料，采用分段水热法制备了La3+/TiO2中空微球前驱体，在O2 气氛下，450 ℃煅烧得到La3+/TiO2中空微球。利用XRD、SEM、XPS和UV-vis等测试手段对其相组成，形貌和光吸收特性进行了表征与分析。通过噻吩模拟含硫污染物研究了其光催化氧化脱硫性能和光催化氧化反应机制。结果表明：分段水热法合成的La3+/TiO2中空微球光催化性能优于P25，促进了光生电子和空穴的分离，并将光响应范围扩展到可见光区；可见光照射210 min，模型汽油中含硫污染物的脱除率可达91.45%，实现了深度脱硫。

English Abstract

参考文献 (25)

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心