Effect of iron oxides and carboxylic acids on photochemical degradation of bisphenol A
文献类型: 外文期刊
第一作者: Li, Fang-bai
作者: Li, Fang-bai;Chen, Jun-jian;Liu, Cheng-shuai;Dong, Jun;Liu, Tong-xu
作者机构:
关键词: iron oxides;bisphenol A;photodegradation;carboxylic acid;oxalic acid
期刊名称:BIOLOGY AND FERTILITY OF SOILS ( 影响因子:6.432; 五年影响因子:6.332 )
ISSN: 0178-2762
年卷期: 2006 年 42 卷 5 期
页码:
收录情况: SCI
摘要: gamma-FeOOH was initially prepared by hydrothermal process and then sintered at 280 C, 310 C, and 420 C, and four kinds of iron oxides were obtained and named as lepidocrocite, IO-280, IO-310, and IO-420. They were characterized by XRD, SEM, and BET techniques to disclose the crystal composition, morphology, and surface area. The XRD results show that IO-280 and IO-310 should consist of maghemite and hematite, while IO-420 should be pure hematite. With the increase of temperature, the specific surface area significantly decreased. To test the photocatalytic activity of iron oxides, bisphenol A (BPA) was selected as a model chemical. The results show that BPA photocatalytic degradation should depend strongly on pH value, light source, and the crystal structure of iron oxides and that IO-310 had the highest activity in the absence of oxalic acid under UV or visible light illumination. The dependence of BPA photodegradation on carboxylic acids in lepidocrocite-carboxylate systems was investigated. BPA degradation was promoted greatly by the addition of oxalic and citric acid, and slightly by tartaric, malonic, and malic acid. The first-order kinetic constant (k) of BPA degradation follows the order oxalic >>> citric >> tartaric > malonic > malic > without acid approximate to succinic acid. In iron oxide-oxalic acid systems, the reaction rate and efficiency of BPA degradation under UV light was much more than under visible light illumination, and the k value follows the order: lepidocrocite > IO-280 > IO-310 > IO-420 under both UV and visible illumination. It is concluded that BPA photodegrdation should be dependent on the kind of carboxylic acid, iron oxides, and light sources in iron oxide-carboxylate system. The photochemical investigation of iron oxide-carboxylate complex systems is essential to the full understanding of the interactive mechanism of iron oxides and organic pollutants on the surface of soil in subtropical and tropical regions.
分类号:
- 相关文献
作者其他论文 更多>>
-
Integrative analysis reveals a lineage-specific circular RNA landscape for adipo-osteogenesis of human mesenchymal stem cells
作者:Huang, Hai-Bo;Luo, Hai-Tao;Wei, Na-Na;Liu, Miao-Ling;He, Fei;Yang, Wei;Yang, Xiao-Fei;Li, Fu-Rong;Huang, Hai-Bo;Luo, Hai-Tao;Wei, Na-Na;Liu, Miao-Ling;He, Fei;Yang, Wei;Yang, Xiao-Fei;Li, Fu-Rong;Huang, Hai-Bo;Luo, Hai-Tao;Wei, Na-Na;Liu, Miao-Ling;He, Fei;Yang, Wei;Yang, Xiao-Fei;Li, Fu-Rong;Huang, Hai-Bo;Luo, Hai-Tao;Dong, Jun;Li, Fu-Rong;Dong, Jun;Huang, Hai-Bo;Wei, Na-Na
关键词:Mesenchymal stem cells; Osteogenesis; Adipogenesis; Circular RNAs; CRLF1
-
Total volatile basic nitrogen content in duck meat of different varieties based on calibration maintenance and transfer by use of a near-infrared spectrometric model
作者:Qiao, Lu;Lu, Bing;Dong, Jun;Tang, Xiuying;Qiao, Lu;Li, Bingquan;Zhao, Binghe
关键词:Calibration transfer; duck meat; model maintenance; near-infrared spectroscopy; total volatile basic nitrogen
-
Egg freshness prediction using a comprehensive analysis based on visible near infrared spectroscopy
作者:Dong, Xiaoguang;Zhang, Beibei;Dong, Jun;Lu, Bing;Hu, Can;Tang, Xiuying;Dong, Xiaoguang
关键词:Comprehensive freshness indicator; egg; nondestructive; principal components analysis; visible near infrared spectroscopy
-
Protection of chickens against fowl cholera by supernatant proteins of Pasteurella multocida cultured in an iron-restricted medium
作者:Luo, Qingping;Chen, Huanchun;Jin, Meilin;Luo, Qingping;Kong, Lingyan;Dong, Jun;Zhang, Tengfei;Wang, Honglin;Zhang, Rongrong;Lu, Qin;Shao, Huabin;Zhang, Tengfei;Wang, Honglin;Zhang, Rongrong;Lu, Qin;Shao, Huabin
关键词:Pasteurella multocida; iron restriction; AspA; DgK; RpsF; protection
-
Mitigation of soil acidification through changes in soil mineralogy due to long-term fertilization in southern China
作者:Tao, Liang;Li, Fang-bai;Liu, Cheng-shuai;Feng, Xiong-han;Gu, Li-li;Wang, Bo-ren;Wen, Shi-lin;Xu, Ming-gang
关键词:Soil acidification; Potential acid Al3+; Al substituted iron oxides; Differential X-ray diffraction spectra
-
Genotypic diversity, antimicrobial resistance and biofilm-forming abilities of Campylobacter isolated from chicken in Central China
作者:Zhang, Tengfei;Dong, Jun;Cheng, Yiluo;Lu, Qin;Luo, Qingping;Wen, Guoyuan;Shao, Huabin;Dong, Jun;Cheng, Yiluo;Liu, Guoping;Shao, Huabin;Zhang, Tengfei;Lu, Qin;Luo, Qingping;Wen, Guoyuan;Shao, Huabin;Dong, Jun;Liu, Guoping
关键词:Campylobacter;Prevalence;Antibiotic resistance;Genotype lineage;Biofilm
-
Effect of nitrate addition on reductive transformation of pentachlorophenol in paddy soil in relation to iron(III) reduction
作者:Yu, Huan-Yun;Chen, Peng-cheng;Li, Fang-bai;Chen, Man-jia;Hu, Min;Wang, Yong-kui;Ouyang, Xiaoguang
关键词:Anaerobic biodegradation;Organic contaminants;Nitrate;Fe(III) reduction;Microbial community