四氧化三铁的应用.doc

水热法合成纳米Fe_3O_4及其对含酚废水的处理 推荐 CAJ下载 PDF下载 【英文篇名】PREPARATION OF NANO-SIZED MAGNETITE PARTICLES BY HYDROTHERMAL METHOD FOR TREATMENT OF PHENOLIC WASTEWATER【作者】柴多里; 刘忠煌; 陈刚; 杨保俊; 杨少东;【英文作者】CHAI Duoli 1; LIU Zhonghuang 1; CHEN Gang 2; YANG Baojun 1; YANG Shaodong 1 （1.College of Chemical Engineering; Hefei University of Technology; Hefei 230009; 2.Huaibei First Knitting Mill; Huaibei 235000; Anhui; China）;【作者单位】合肥工业大学化工学院; 淮北第一针织厂;【刊名】硅酸盐学报 , Journal of the Chinese Ceramic Society, 编辑部邮箱 2010年 01期期刊荣誉：中文核心期刊要目总览ASPT来源刊中国期刊方阵CJFD收录刊【关键词】四氧化三铁; 催化; 氧化降解; 含酚废水;【英文关键词】magnetite; catalytic; oxidative degradation; phenol wastewater;【摘要】通过水热法制备了纳米四氧化三铁,采用X射线衍射仪、透射电子显微镜对其进行了表征。以合成的纳米四氧化三铁为催化剂,过氧化氢为氧化剂,催化氧化含邻苯二酚的模拟废水和含邻甲苯酚的工业废水。结果表明:含邻苯二酚模拟废水和含邻甲苯酚的工业废水的挥发酚去除率分别为99.9%和99.3%,化学需氧量下降率分别为87.5%和95.4%。纳米四氧化三铁作为催化剂多次循环使用后仍具有较高的催化活性。通过亚甲基蓝捕捉法,检测了催化氧化反应中羟基自由基的产生并确定了H2O2的投料方式,探讨了邻苯二酚模拟的催化氧化降解途径。【英文摘要】Nano-sized particles of magnetite (Fe3O4) was prepared by a hydrothermal method.The samples obtained were characterized by X-ray powder diffractometer and transmission electron microscope.The nano-sized particles of Fe3O4 were used as catalysts for degradation of the catechol simulated wastewater and o-cresol industrial wastewater with hydrogen peroxide in the oxidation.The results show that the removal rates of volatile phenol in the simulated and industrial wastewater are 99.9% and 99.3%,and the reduction.【基金】安徽高校省级自然科学研究重点计划(KJ2008A066)资助项目纳米Fe_3O_4的制备及其对对硝基甲苯的催化降解 推荐 CAJ下载 PDF下载 【英文篇名】Preparation of Magnetite Nanoparticles and Its Mechano-catalytical Degradation Capacity of P-nitrotoluene【作者】吴可兰; 张爱茜; 魏进; 吴海锁; 王连生;【英文作者】WU Ke-lan1; ZHANG Ai-qian1; WEI Jin1; WU Hai-suo2; WANG Lian-sheng1（1.State Key Laboratory of Pollution Control and Resource Reuse; School of Environment; Nanjing University; Nanjing; Jiangsu 210093; China; 2.Jiangsu Research Institute of Environmental Science; Jiangsu 210036; China）;【作者单位】污染控制与资源化研究国家重点实验室南京大学环境学院; 江苏省环境科学研究院; 江苏南京;【刊名】污染防治技术 , Pollution Control Technology, 编辑部邮箱 2007年 06期期刊荣誉：CJFD收录刊【关键词】四氧化三铁; 纳米颗粒; 制备; 机械催化; 对硝基甲苯;【英文关键词】magnetite; nanoparticles; preparation; mechano-catalysis; p-nitrotoluene;【摘要】采用共沉淀法制备了纳米四氧化三铁(Fe3O4),并进行必要表征,制备所得的Fe3O4粒径与商品Fe3O4相当,均为1520 nm。在中性、碱性条件下,制备的材料表面带负电,而在弱酸性条件下,则带正电。制备出的Fe3O4与商品的Fe3O4一样,对对硝基甲苯具有相同的机械催化降解效率,均符合准一级反应动力学。纳米Fe_2O_3/Fe_3O_4光催化法处理造纸废水的研究 推荐 CAJ下载 PDF下载 【英文篇名】STUDY ON PHOTOCATALYSIS TREATMENT OF WASTEWATER FROM PAPER MILL WITH NANOSIZED Fe_2O_3/Fe_3O_4【作者】朱亦仁; 李爱梅; 鲁玲; 于昕; 张弛; 解恒参;【英文作者】Zhu Yiren1 Li Aimei1 Lu Ling1 Yu Xin1 Zhang Chi2 Xie Hengshen2 （1.Department of Chemistry; Xuzhou Normal University; Xuzhou 221116; China; 2.Xuzhou Institute of Architectral Technology; China）;【作者单位】徐州师范大学化学系; 徐州建筑技术学院; 221116;【刊名】太阳能学报 , Acta Energiae Solaris Sinica, 编辑部邮箱 2007年 10期期刊荣誉：中文核心期刊要目总览ASPT来源刊中国期刊方阵CJFD收录刊【关键词】造纸废水; 光催化降解; 三氧化二铁; 四氧化三铁;【英文关键词】wastewater from paper mill; photocatalysis; Fe_2O_3; Fe_3O_4;【摘要】以纳米Fe_2O_3/Fe_3O_4为催化剂,用光催化氧化法处理造纸废水。研究结果表明:该催化剂能有效、快速地降低废水中的COD_(Cr),催化剂用量、H_2O_2用量、pH值、反应时间等各因素对处理效果的影响大小依次为:光照时间H_2O_2用量催化剂用量溶液pH值;室温下最佳反应条件为:催化剂用量0.5gL(-1)、30%的H_2O_2用量为5(V/V)、pH=3.0,300W高压汞灯光照4h,废水的COD_(Cr)值从800 mgL(-1)降到48mgL(-1),去除率达到94%。实验进一步考察了太阳光照射下催化剂对废水的降解效果,表明太阳光光照下催化剂对废水也有较好的处理效果。Fe_3O_4的存在使催化剂具有一定磁性,可利用磁分离法将催化剂从体系中分离。【英文摘要】The photocatalytic degradation of wastewater from paper mill with nano Fe_2O_3/Fe_3O_4 as photocatalyst was stud- ied.The results showed that the photocatalyst could efficiently eliminate COD in wastewater.The influences of parameters such as the amount of Fe_2O_3 and H_2O_2,pH and irradiation time on treatment effect of wastewater decreased in the follow- ing order:the irradiation time,H_2O_2,the amount of Fe_2O_3,pH.Under the optimum condition,the amount of photocatalyst Fe_2O_3/Fe_2O_4 was 0.5gL(-1) an.【DOI】CNKI:SUN:TYLX.0.2007-10-016纳米Fe_2O_3-TiO_2催化剂的制备及其对甲基橙的降解 推荐 CAJ下载 PDF下载 【英文篇名】Preparation of Fe_2O_3-TiO_2 Nano-particle Composite Catalyst and Degradation of Methyl Orange【作者】刘宗耀; 李立清; 唐新村; 蒋呈奎; 王晓刚; 刘重阳;【英文作者】Liu Zongyao1; 2; Li Liqing1; 3; Tang Xincun2; Jiang Chengkui2; Wang Xiaogang1; Liu Chongyang1（1.College of Environmental Science and Engineering; Hunan University; Changsha Hunan 410082; China; 2.College of Chemistry and Chemical Engineering; Central South University; Changsha Hunan 410083; 3.College of Energy Science and Engineering; China）;【作者单位】湖南大学环境科学与工程学院; 中南大学化学与化工学院; 湖南长沙; 中南大学能源科学与工程学院;【刊名】化工环保 , Environmental Protection of Chemical Industry, 编辑部邮箱 2006年 05期期刊荣誉：中文核心期刊要目总览ASPT来源刊CJFD收录刊【关键词】三氧化二铁; 二氧化钛; 催化剂; 光催化活性; 纳米颗粒; 甲基橙;【英文关键词】ferric oxide; titanium dioxide; catalyst; photocatalytic activity; nano-particle; methyl orange;【摘要】以钛酸四丁酯为主要原料、冰醋酸为抑制剂,采用溶胶-凝胶法制备纳米Fe2O3-TiO2复合催化剂,并用X射线衍射(XRD)、透射电子显微镜(TEM)和荧光光谱(FS)分析了催化剂的晶体结构、形貌和光谱特征。以甲基橙溶液为处理对象,在可见光下研究了不同n(Fe2O3)n(TiO2)的催化剂的光催化活性,并初步研究了荧光强度与催化剂的光催化活性之间的关系。研究结果表明,n(Fe2O3)n(TiO2)为0.10%的催化剂的光催化活性最佳,光照4h后甲基橙的去除率达99.8%,且荧光强度与光催化活性呈正相关性。【英文摘要】Fe2O3-TiO2 nano-particle composite catalyst was prepared by Sol-Gel method using tetrabutyl titanate(TBT)as main raw material and acetic acid as inhibitor.The crystal structure,morphology and spectrum of the catalyst were characterized by means of XRD,TEM and FS.In treatment