文化大學機構典藏 CCUR:Item 987654321/22946
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 47126/50992 (92%)
造访人次 : 13860540      在线人数 : 261
RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜寻范围 查询小技巧：
  • 您可在西文检索词汇前后加上"双引号"，以获取较精准的检索结果
  • 若欲以作者姓名搜寻，建议至进阶搜寻限定作者字段，可获得较完整数据
    •  进阶搜寻
    主页 ‧ 登入 ‧ 上传 ‧ 说明 ‧ 关于CCUR ‧ 管理 到手机版


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://irlib.pccu.edu.tw/handle/987654321/22946


    题名: Effect of sunlight irradiation on photocatalytic pyrene degradation in contaminated soils by micro-nano size TiO2
    作者: Chien, S.W.Chang
    Chang, C.H.
    Chen, S.H.
    Wang, M.C.
    Rao, M.Madhava
    Veni, S.Satya
    贡献者: 生命科學系
    关键词: SEDIMENT
    POLYCYCLIC AROMATIC-HYDROCARBONS
    CHEMICAL OXIDATION
    UV-LIGHT
    SURFACES
    BIOREMEDIATION
    WATER
    PHOTODEGRADATION
    PHOTOCHEMISTRY
    POLLUTANTS
    日期: 2011-09
    上传时间: 2012-09-07 14:27:54 (UTC+8)
    摘要: The enhanced catalytic pyrene degradation in quartz sand and alluvial and red soils by micro-nano size TiO2 in the presence and absence of sunlight was investigated. The results showed that the synergistic effect of sunlight irradiation and TiO2 was more efficient on pyrene degradation in quartz sand and red and alluvial soils than the corresponding reaction system without sunlight irradiation. In the presence of sunlight irradiation, the photooxidation (without TiO2) of pyrene was very pronounced in alluvial and red soils and especially in quartz sand. However, in the absence of sunlight irradiation, the catalytic pyrene degradation by TiO2 and the photooxidation (without TiO2) of pyrene were almost nil. This implicates that ultra-violet (UV) wavelength range of sunlight plays an important role in TiO2-enhanced photocatalytic pyrene degradation and in photooxidation (without TiO2) of pyrene. The percentages of photocatalytic pyrene degradation by TiO2 in quartz sand, alluvial and red soils under sunlight irradiation were 78.3, 23.4, and 31.8%, respectively, at 5 h reaction period with a 5% (w/w) dose of the amended catalyst. The sequence of TiO2-enhanced catalytic pyrene degradation in quartz sand and alluvial and red soils was quartz sand > red soil > alluvial soil, due to different texture and total organic carbon (TOC) contents of the quartz sand and other two soils. The differential Fourier transform infrared (FT-IR) spectra of degraded pyrene in alluvial soil corroborate that TiO2-enhanced photocatalytic degradation rate of degraded pyrene was much greater than photooxidation (without TiO2) rate of degraded pyrene. Based on the data obtained, the importance for the application of TiO2-enhanced photocatalytic pyrene degradation and associated organic contaminants in contaminated soils was elucidated. (C) 2011 Elsevier B.V. All rights reserved.
    關聯: Source: SCIENCE OF THE TOTAL ENVIRONMENT Volume: 409 Issue: 19 Pages: 4101-4108
    显示于类别:[生命科學系] 期刊論文

    文件中的档案:

    档案 描述 大小格式浏览次数
    index.html0KbHTML457检视/开启


    检视Licence

    在CCUR中所有的数据项都受到原著作权保护.

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回馈