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首页> 外文期刊>Applied Surface Science >Fabrication of Gd-La codoped TiO_2 composite via a liquid phase plasma method and its application as visible-light photocatalysts
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Fabrication of Gd-La codoped TiO_2 composite via a liquid phase plasma method and its application as visible-light photocatalysts

机译：液相等离子体法制备Gd-La共掺杂TiO_2复合材料及其在可见光催化剂中的应用

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摘要

TiO2 was doped simultaneously with Gd and La using a liquid phase plasma (LPP) reaction to produce a photocatalyst with excellent photoactivity in the visible light region. Gadolinium chloride hexahydrate and lanthanum chloride heptahydrate precursors were used to dope the TiO2 powder with polycrystalline Gd2O3 and La2O3 particles. The doping of TiO2 with rare earth elements using LPP reaction decreased the band gap; the band gap of Gd-La codoped TiO2 photocatalysts (GLTP) was the lowest The photodegradation efficiency of the TiO2 photocatalysts doped with either Gd or La was superior that of bare TiO2 but the photodegradation efficiency of GLTP was highest in both ultraviolet and visible light sources. Acetaminophen (Acetyl-para-aminophen, APAP) was ultimately decomposed to CO2 and H2O via intermediates, such as p-nitrophenol, hydroquinone and hydroxylhydroquinone, by hydroxyl radicals (HO center dot) formed on the surface of GLTP.
机译：使用液相等离子体（LPP）反应将TiO2与Gd和La同时掺杂，以生产在可见光区域具有出色光活性的光催化剂。六水合氯化d和七水合氯化镧前体用于在TiO2粉末中掺杂多晶Gd2O3和La2O3颗粒。通过LPP反应掺杂稀土元素可降低带隙。 Gd-La共掺杂TiO2光催化剂（GLTP）的带隙最低。掺有Gd或La的TiO2光催化剂的光降解效率优于裸TiO2，但GLTP的光降解效率在紫外和可见光源下均最高。 。对乙酰氨基酚（乙酰对位氨基酚，APAP）最终通过在GLT​​P表面形成的羟基（HO中心点）通过对硝基苯酚，对苯二酚和羟基对苯二酚等中间体分解为CO2和H2O。

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  • 来源
    《Applied Surface Science》 |2019年第31期|893-899|共7页
  • 作者

    Lee Heon; Park In-Soo; Bang Hye-Jin; Park Young-Kwon; Kim Hangun; Ha Hyung-Ho; Kim Byung-Joo; Jung Sang-Chul;

  • 作者单位

    Sunchon Natl Univ, Dept Environm Engn, 255 Jungang Ro, Sunchon 57922, Jeonnam, South Korea;

    Sunchon Natl Univ, Dept Environm Engn, 255 Jungang Ro, Sunchon 57922, Jeonnam, South Korea;

    Sunchon Natl Univ, Dept Environm Engn, 255 Jungang Ro, Sunchon 57922, Jeonnam, South Korea;

    Univ Seoul, Sch Environm Engn, 163 Seoulsiripdaero, Seoul 02504, South Korea;

    Sunchon Natl Univ, Coll Pharm, 255 Jungang Ro, Sunchon 57922, Jeonnam, South Korea;

    Sunchon Natl Univ, Coll Pharm, 255 Jungang Ro, Sunchon 57922, Jeonnam, South Korea;

    Korea Inst Carbon Convergence Technol, Carbon Valley R&D Div, 110-11 Banryong Ro, Jeonju 54853, South Korea;

    Sunchon Natl Univ, Dept Environm Engn, 255 Jungang Ro, Sunchon 57922, Jeonnam, South Korea;

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  • 正文语种 eng
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  • 关键词

    Gd-La codoped TiO2 photocatalysts; Liquid phase plasma; Acetaminophen; Band gap energy; Photocatalytic activity;

    机译：Gd-La共掺杂TiO2光催化剂;液相等离子体;对乙酰氨基酚;带隙能;光催化活性;

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