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CS2在TiO2表面的多相光化学反应研究

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沈建东, 焦荔, 洪盛茂, 杨乐, 王成臣, 张士成, 陈建民. CS2在TiO2表面的多相光化学反应研究[J]. 环境化学, 2011, 30(1): 378-385.
引用本文: 沈建东, 焦荔, 洪盛茂, 杨乐, 王成臣, 张士成, 陈建民. CS2在TiO2表面的多相光化学反应研究[J]. 环境化学, 2011, 30(1): 378-385.
shu
SHEN Jiandong, JIAO Li, HONG Shengmao, YANG Le, WANG Chengchen, ZHANG Shicheng, CHEN Jianmin. STUDIES ON CS2 HETEROGENEOUS PHOTOCHEMICAL REACTION ON THE SURFACE OF TiO2 PARTICLES[J]. Environmental Chemistry, 2011, 30(1): 378-385.
Citation: SHEN Jiandong, JIAO Li, HONG Shengmao, YANG Le, WANG Chengchen, ZHANG Shicheng, CHEN Jianmin. STUDIES ON CS2 HETEROGENEOUS PHOTOCHEMICAL REACTION ON THE SURFACE OF TiO2 PARTICLES[J]. Environmental Chemistry, 2011, 30(1): 378-385.
shu

CS2在TiO2表面的多相光化学反应研究

  • 1.

    杭州市环境监测中心站, 杭州, 310007;

  • 2.

    复旦大学环境科学与工程系, 上海, 200237

  • 基金项目:

    教育部留学回国人员科研启动基金资助项目.

STUDIES ON CS2 HETEROGENEOUS PHOTOCHEMICAL REACTION ON THE SURFACE OF TiO2 PARTICLES

  • 1.

    Hangzhou Environmental Monitoring Center, Hangzhou, 310007, China;

  • 2.

    Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China

  • Fund Project:

  • 摘要: 本文运用原位漫反射红外光谱(DRIFTS)、GC、XPS等手段研究了CS2在大气半导体颗粒TiO2表面的多相光化学反应.结果表明在模拟太阳光照射下,低浓度的CS2(8.1 mg·m-3)在TiO2表面发生多相光化学反应,生成气态产物COS、H2S、SO2,进而在颗粒物表面生成硫酸盐.在氧气体积浓度为21%,氙灯照射下CS2在TiO2表面的多相光化学反应符合表观一级动力学反应,BET吸附系数为5.36×10-8.
    Abstract: In this paper, the heterogeneous photochemical reaction of CS2 on the surface of semiconductor particle TiO2 was investigated by using in situ diffuse reflectance Fourier transform infrared spectroscopy (DRIFTS), GC, XPS and other means. The results showed that under the simulated sunlight irradiation, the heterogeneous photochemical reaction of low concentration CS2 (8.1 mg·m-3) occurred on the surface of TiO2 particles. The gaseous products were COS, H2S, SO2, and the surface product was sulfate. Under 21% oxygen volume concentration and xenon lamp irradiation, the process of CS2 photocatalytic oxidation on TiO2 particles fit apparent first order dynamics reaction. The BET adsorption coefficient was 5.36�10-8.
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  • [1] Borensen C, Kirchner U, Scheer V, et al. Mechanism and kinetics of the reactions of NO2 or HNO3 with Alumina as a mineral dust model compound[J]. Journal of Physical Chemistry A, 2000, 104:5036-5045
    [2] Zakharenko V S. Photoadsorption and photocatalytic oxidation on the metal oxides components of tropospheric solid aerosols under the Earth’s atmosphere conditions[J]. Catalysis Today, 1997,39:243-249
    [3] Johnson J E, Harrison H. Carbonyl sulfide concentrations in the surface waters and above the pacific ocean[J]. Journal of Geophysical Research,1986, 91:7883-7888
    [4] Bingemer H G, Burgermeister S, Zimmerman R L, et al. Atmospheric OCS-evidence for a contribution of anthropogenic sources[J]. Journal of Geophysical Research, 1990, 95:20617-20622
    [5] 孙斌,潘循皙,侯键,等. 火花放电条件下CS2转化为OCS的反应[J]. 环境科学, 2002, 23:23-28
    [6] William P, Julian W H. Photooxidation of carbon disulfide[J]. Journal of Physical Chemistry, 1971, 75(7):854-860
    [7] Wang L, Zhang F, Chen J M. Carbonyl sulfide derived from catalytic oxidation of carbon disulfide over atmospheric particles[J]. Environmental Science Technology, 2001, 35:2543-2547
    [8] Wang L, Zhang F, Chen J M. Studies on catalytic oxidation of CS2 over atmospheric particles and oxide catalysts[J]. Science in China (Series B), 2001, 44(6):587-595
    [9]
    [10] 王琳,宋国新,张峰,等. 大气颗粒物对CS2催化氧化反应动力学研究[J]. 高等学校化学学报, 2002, 35(12):1738-1742
    [11] 王琳,张峰,陈建民. CS2和大气颗粒物的多相催化反应研究[J]. 高等学校校化学学报, 2002, 23(5):866-870
    [12] Vogt R, Elliott C H, Allen C, et al. Some new laboratory approaches to studying tropospheric heterogeneous reactions[J]. Atmospheric Environment, 1996, 30(10/11):1729-1737
    [13] Peak D, Ford R G, Sparks D L. An in situ ATR-FTIR investigation of sulfate bonding mechanisms on goethite[J]. Journal of Colloid and Interface Science,1999,218:289-299
    [14] Ullerstam M, Vogt R, Langer S, et al. The kinetics and mechanism of SO2 oxidation by O3 on mineral dust[J]. Physical Chemistry and Chemistry Physics,2002, 4:4604-4699
    [15] Usher C R, Al-Hosney H, Carlos S, et al. A laboratory study of the heterogeneous uptake and oxidation of sulfur dioxide on mineral dust particles[J]. Journal of Geophysical Research, 2002, 107:4713-4721
    [16] Prashant V K. Photochemistry on nonreactive and reactive (semiconductor) surfaces[J]. Chem Rev, 1993, 93:267-300
    [17] 王晓,吴洪波,陈建民. 常压和真空下CS2的光氧化反应[J]. 环境科学,2005,26(2):45-49
    [18] 张建良,潘循皙,张仁熙,等. 对流层中CS2光氧化研究[J]. 环境化学, 2003, 22(1):26-31
    [19] Goodman A L, Li P, Usher C R, et al. Heterogeneous uptake of sulfur dioxide on aluminum and magnesium oxide particles[J]. Journal of Physical Chemistry, 2001, 105:6109-6120
    [20] 井立强,孙晓君,徐自力,等. ZnO超微粒子光催化氧化SO2的研究[J]. 催化学报, 2002, 23(1):37-40
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  • 收稿日期:  2010-08-12
  • 刊出日期:  2011-01-15
沈建东, 焦荔, 洪盛茂, 杨乐, 王成臣, 张士成, 陈建民. CS2在TiO2表面的多相光化学反应研究[J]. 环境化学, 2011, 30(1): 378-385.
引用本文: 沈建东, 焦荔, 洪盛茂, 杨乐, 王成臣, 张士成, 陈建民. CS2在TiO2表面的多相光化学反应研究[J]. 环境化学, 2011, 30(1): 378-385.
shu
SHEN Jiandong, JIAO Li, HONG Shengmao, YANG Le, WANG Chengchen, ZHANG Shicheng, CHEN Jianmin. STUDIES ON CS2 HETEROGENEOUS PHOTOCHEMICAL REACTION ON THE SURFACE OF TiO2 PARTICLES[J]. Environmental Chemistry, 2011, 30(1): 378-385.
Citation: SHEN Jiandong, JIAO Li, HONG Shengmao, YANG Le, WANG Chengchen, ZHANG Shicheng, CHEN Jianmin. STUDIES ON CS2 HETEROGENEOUS PHOTOCHEMICAL REACTION ON THE SURFACE OF TiO2 PARTICLES[J]. Environmental Chemistry, 2011, 30(1): 378-385.
shu

CS2在TiO2表面的多相光化学反应研究

  • 1.  杭州市环境监测中心站, 杭州, 310007;
  • 2.  复旦大学环境科学与工程系, 上海, 200237
  • 收稿日期:  2010-08-12
基金项目:

教育部留学回国人员科研启动基金资助项目.

摘要: 本文运用原位漫反射红外光谱(DRIFTS)、GC、XPS等手段研究了CS2在大气半导体颗粒TiO2表面的多相光化学反应.结果表明在模拟太阳光照射下,低浓度的CS2(8.1 mg·m-3)在TiO2表面发生多相光化学反应,生成气态产物COS、H2S、SO2,进而在颗粒物表面生成硫酸盐.在氧气体积浓度为21%,氙灯照射下CS2在TiO2表面的多相光化学反应符合表观一级动力学反应,BET吸附系数为5.36×10-8.

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