La0.4Sr0.6MnO3纳米晶的制备及光催化性能

韦超, 夏训峰, 王京刚, 王丽君, 张颖, 吕慧瑜

韦超, 夏训峰, 王京刚, 王丽君, 张颖, 吕慧瑜. La0.4Sr0.6MnO3纳米晶的制备及光催化性能[J]. 环境工程技术学报, 2017, 7(1): 32-38. DOI: 10.3969/j.issn.1674-991X.2017.01.005
引用本文: 韦超, 夏训峰, 王京刚, 王丽君, 张颖, 吕慧瑜. La0.4Sr0.6MnO3纳米晶的制备及光催化性能[J]. 环境工程技术学报, 2017, 7(1): 32-38. DOI: 10.3969/j.issn.1674-991X.2017.01.005
WEI Chao, XIA Xunfeng, WANG Jinggang, WANG Lijun, ZHANG Ying, LÜ Huiyu. Preparation of nano-crystalline La0.4Sr0.6MnO3 and its photocatalytic performance[J]. Journal of Environmental Engineering Technology, 2017, 7(1): 32-38. DOI: 10.3969/j.issn.1674-991X.2017.01.005
Citation: WEI Chao, XIA Xunfeng, WANG Jinggang, WANG Lijun, ZHANG Ying, LÜ Huiyu. Preparation of nano-crystalline La0.4Sr0.6MnO3 and its photocatalytic performance[J]. Journal of Environmental Engineering Technology, 2017, 7(1): 32-38. DOI: 10.3969/j.issn.1674-991X.2017.01.005

La0.4Sr0.6MnO3纳米晶的制备及光催化性能

详细信息
    作者简介:

    韦超(1989—),男,硕士研究生,研究方向为光催化, wcgd523090@163.com

    通讯作者:

    王京刚 E-mail: wangjg@mail.buct.edu.cn

  • 中图分类号: X131

Preparation of nano-crystalline La0.4Sr0.6MnO3 and its photocatalytic performance

More Information
    Corresponding author:

    WANG Jinggang: Jinggang WANG E-mail: wangjg@mail.buct.edu.cn

  • 摘要: 采用柠檬酸络合法,以金属硝酸盐和柠檬酸为原料,经过溶解、蒸发、干燥、煅烧、研磨等工艺制备La0.4Sr0.6MnO3纳米晶催化剂,应用X射线衍射(XRD)、电子显微镜(SEM)、X射线光电子能谱(XPS)等技术表征其物化特性及微观结构。结果表明:制得的催化剂为立方晶相的纳米晶;形貌呈球形;分散性较好;各元素所占比例与化学式基本相符。以甲基橙(MO)为目标污染物探究La0.4Sr0.6MnO3纳米晶在可见光下的光催化性能,通过改变试验因素(溶液的pH和氧化剂)来探究其光催化活性。结果表明:甲基橙在酸性条件(pH为1.4)下的降解效果比碱性条件好,La0.4Sr0.6MnO3纳米晶对其的降解率可达75%以上;有氧化剂存在的条件下,La0.4Sr0.6MnO3纳米晶对甲基橙的降解率更高;La0.4Sr0.6MnO3纳米晶的吸附性能和光催化性能满足朗缪尔模型及一级反应动力学模型。
    Abstract: Citric acid complexing method was adopted to prepare nano-crystalline La0.4Sr0.6MnO3. The material was based on metal nitrate and citric acid, processed with dissolving, evaporation, drying, calcination and milling, etc. Techniques of XRD, SEM, and XPS were used to characterize its physical chemical properties and microscopic structure. The results showed that the catalyst was conformed to cubic phase perovskite, with spherical shape and good dispersity, and the proportion of each element met with the chemical formula basically. The photocatalytic performance of the nano-crystalline La0.4Sr0.6MnO3 was explored with methyl orange (MO) under visible light. The photocatalytic activity was investigated by changing the experimental factors, such as pH of solution and oxidant. The results showed that the degradation performance of MO under the acidic condition (pH 1.4) was better than the alkaline condition, and the degradation of MO could reach more than 75% under the acidic condition. Meanwhile, nano-crystalline La0.4Sr0.6MnO3 with oxidant showed better photocatalytic activity than that without oxidant. The adsorption and photo-oxidation properties of nano-crystalline La0.4Sr0.6MnO3 were explored, and the results met with the Langmuir model and first order reaction kinetics model.
  • [1] 傅希贤, 杨秋华, 桑丽霞 . 钙钛矿型LaFe1-xCuxO3的光催化活性研究[J]. 高等学校化学学报, 2002,23(2):283-286.

    FU X X, YANG Q H, SANG L X . Studies on photocatalytic activity of perovskite type LaFe1-xCuxO3[J]. Chemical Journal of Chinese Universities, 2002,23(2):283-286.

    [2] 白树林, 傅希贤, 桑丽霞 , 等. 钙钛矿(ABO3)型复合氧化物的光催化活性变化趋势与分析[J]. 高等学校化学学报, 2001,22(4):663-665.

    BAI S L, FU X X, SANG L X , et al. Change tendency of photocatalystic activity in system of perovskite (ABO3) type oxide and analysis[J]. Chemical Journal of Chinese Universities, 2001,22(4):663-665.

    [3]

    HE F, WANG H, DAI Y N . Preparation and characterization of La0.8Cu0.2MnO(3±δ) perovskite-type catalyst for methane combustion[J]. Transactions of Nonferrous Metals Society of China, 2005,15(3):691-699.

    [4] 刘宁, 严国清, 童伟 , 等. La0.67Sr0.33Mn1-xCrxO3(0.00≤x≤0.30)的特殊输运行为[J]. 中国稀土学报, 2005,23(3):299-302.

    LIU N, YAN G Q, TONG W , et al. The special transport for operation of La0.67Sr0.33Mn1-xCrxO3(0.00≤x≤0.30)[J]. Journal of the Chinese Rare Earth Society, 2005,23(3):299-302.

    [5] 傅希贤, 桑丽霞, 王俊珍 , 等. 钙钛矿型(ABO3)化合物的光催化活性及其影响因素[J]. 天津大学学报(自然科学与工程技术版), 2001,34(2):229-231.

    FU X X, SANG L X, WANG J Z , et al. Photocatalytic activity of perovskite oxides ABO3 and the factors of influence[J]. Journal of Tianjin University (Natural Sciences and Engineering Technology), 2001,34(2):229-231.

    [6] 杨秋华, 傅希贤 . 纳米LaMO3(M=Cr,Mn,Fe,Co)化合物的光催化氧化活性分析[J]. 硅酸盐学报, 2003,31(3):254-256.

    YANG Q H, FU X X . Aanlysis of photocatalytic oxidation activity of nano-LaMO3(M=Cr,Mn,Fe,Co) compounds[J]. Journal of the Chinese Ceramic Society, 2003,31(3):254-256.

    [7]

    ZHANG S Y, BECKERS J, BLIEK A . Surface properties and catalytic performance in CO oxidation of cerium substituted lanthanum-manganese oxides[J]. Applied Catalysis A:General, 2002,235(1):79-92.

    [8] 尹荔松, 樊志良, 王达 , 等. 纳米晶La1-xSrxMnO3的溶胶-凝胶法合成及表征[J]. 中国有色金属学报, 2005,15(8):1267-1271.

    YIN L S, FAN Z L, WANG D , et al. Preparation and characteristics of nanocrystalline La1-xSrxMnO3 derived by sol-gel process[J]. The Chinese Journal of Nonferrous Metals, 2005,15(8):1267-1271.

    [9]

    GHIASI M, MALEKZADEH A . Solar photocatalytic degradation of methyl orange over La0.7Sr0.3MnO3 nano-perovskite[J]. Separation and Purification Technology, 2014,134(7):12-19.

    [10]

    WONG A T, BEEKMAN C, GUO H , et al. Strain driven anisotropic magnetoresistance in antiferromagnetic La0.4Sr0.6MnO3[J]. Applied Physics Letters, 2014,105(5):052401-1-052401-5.

    [11] 林生岭, 徐绍芬, 王俊德 , 等. 钙钛矿型LaxSr1-xNi1-yCoyO3光电催化活性研究[J]. 化学学报, 2005,63(5):385-390.

    LIN S L, XU S F, WANG J D , et al. Study on phto-electro catalytic activity of perovskite type oxides LaxSr1-xNi1-yCoyO3[J]. Acta Chimica Sinica, 2005,63(5):385-390.

    [12]

    LI W, LI D, XIAN J , et al. Specific analyses of the active species on Zn0.28Cd0.72S and TiO2 photocatalysts in the degradation of methyl orange[J]. The Journal of Physical Chemistry, 2010,114(49):21482-21492.

    [13]

    PROVENDIER H, PETIT C, ESTOURNES C , et al. Stabilisation of active nickel catalysts in partial oxidation of methane to synjournal gas by iron addition[J]. Applied Catalysis A:General, 1999,180(1):163-173.

    [14]

    WANG Y F, YANG H, XIAN T , et al. Preparation and photocatalytic properties of La0.7Sr0.3MnO3 nanoparticles[J]. Chinese Journal of Materials Research, 2012,26(5):476-482.

    [15]

    BERTRAND G L, CABOCHE G, DUFOUR L C . Low-pressure-MOCVD LaMnOδ very thin films on YSZ(100) optimized for studies of the triple phase boundary[J]. Solid State Ionics, 2000,129(1):219-235.

    [16]

    SUN Z H, NING T Y, ZHOU Y L , et al. Photovoltaic characteristic of La0.7Sr0.3MnO3ZnO p-n heterojunction[J]. Chinese Physics Letters, 2008,25(5):1861-1867.

    [17]

    FROZANDEH-MEHR E, MALEKZADEH A, GHIASI M , et al. Effect of partial substitution of lanthanum by strontium or bismuth on structural features of the lanthanum manganite nanoparticles as a catalyst for carbon monoxide oxidation[J]. Catalysis Communications, 2012,28:32-37.

    [18]

    WATSON C M, DWYER D J, ANDLE J C , et al. Stripping analyses of mercury using gold electrodes:irreversible adsorption of mercury[J]. Analytical Chemistry, 1999,71(15):3181-3186.
    doi: 10.1021/ac981312b pmid: 21662908

    [19] 周永, 江芳, 张晋华 , 等. 载银TiO2纳米管的制备及其光催化降解硝基苯废水[J]. 环境工程技术学报, 2012,2(6):480-484.

    ZHOU Y, JIANG F, ZHANG J H , et al. Preparation of Ag-doped titania nanotube and its photocatalytic degradation performance for nitrobenzene wastewater[J]. Journal of Enviromental Engineering Technology, 2012,2(6):480-484.

    [20] 李大群, 蒋进元, 周岳溪 , 等. 载铁沸石催化H2O2降解阳离子红X-GRL染料废水[J]. 环境工程技术学报, 2013,3(5):391-397.

    LI D Q, JIANG J Y, ZHOU Y X , et al. Degradation of cationic red X-GRL dye wastewater with H2O2 catalyzed by Fe-containing zeolite[J]. Journal of Enviromental Engineering Technology, 2013,3(5):391-397.

    [21]

    MARCZEWSKI A W . Analysis of kinetic Langmuir model:part I.integrated kinetic Langmuir equation(IKL):a new complete analytical solution of the Langmuir rate equation[J]. Langmuir, 2010,26(19):15229-15238.
    doi: 10.1021/la1010049 pmid: 20806937

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出版历程
  • 收稿日期:  2016-06-26
  • 发布日期:  2017-01-19

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