FeOOH | 20344-49-4

• 物质功能分类: 无机化工 - 氧化物和过氧化物 - 金属氧化物
• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 过渡金属氧阴离子化合物
• 英文名称: FeOOH
• 英文别名: Iron hydroxide oxide；iron(3+);oxygen(2-);hydroxide
• CAS: 20344-49-4
• 化学式: Fe*HO*O
• 分子量: 88.8537
• InChiKey: IEECXTSVVFWGSE-UHFFFAOYSA-M

物化性质

• 熔点：
  135°C
• 密度：
  3.4-3.9
• 溶解度：
  DMSO（少量）、甲醇（少量）、水（可溶）
• 暴露限值：
  ACGIH: TWA 1 mg/m3NIOSH: TWA 1 mg/m3

计算性质

• 辛醇/水分配系数(LogP)：
  -0.3
• 重原子数：
  3
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  2
• 氢给体数：
  1
• 氢受体数：
  2

安全信息

• TSCA：
  Yes
• WGK Germany：
  -

制备方法与用途

水合氧化铁(III)的应用

水合氧化铁(III)因其优异的物理和化学性质，已成为一种重要的材料，在各个领域都展现出潜在的应用价值，如用作颜料、磁性材料、光敏材料、气敏材料、催化剂等。

纳米水合氧化铁的制备

1. 取20.2g硝酸铁和10.5g柠檬酸溶解于100mL去离子水中，得到Fe³⁺浓度为0.5mol/L和柠檬酸浓度为0.5mol/L的A混合液。

2. 取12.0g尿素和2.3g乙醇溶解于50mL去离子水中，得到尿素浓度为4mol/L和乙醇浓度为1mol/L的B混合液。

3. 将步骤(2)所得的B混合液用蠕动泵以1mL/min的速度滴加到步骤(1)所得的A混合液中。同时使用磁力搅拌器以1000r/min的速率进行搅拌，待B混合液完全滴完后继续搅拌10分钟，得到C混合液。此时A混合液与B混合液的体积比为2:1。

4. 将步骤(3)所得的C混合液倒入水热反应釜中，并将其放入烘箱，在110℃下进行14小时的反应。冷却至室温后，进行固液分离，收集沉淀并置于离心管中。先用乙醇洗涤三次，再用去离子水洗涤至溶液呈中性。在90℃下干燥16小时，自然冷却至室温后得到纳米水合氧化铁(III)。

化学性质

柠檬黄到褐色的粉末状物质，不溶于水和醇，但能溶解于酸中。

用途

主要应用于涂料、水泥制品、建筑表面、塑料和橡胶的着色。

反应信息

• 作为产物：
  描述：

  iron(III) chloride hexahydrate 、 尿素 以 水 为溶剂， 反应 8.0h， 生成 FeOOH
  参考文献：
  名称：

  Photo-Fenton-like degradation of azo dye methyl orange using synthetic ammonium and hydronium jarosite

  摘要：

  Ammonium and hydronium jarosite were prepared by hydrothermal method with urea as the homogeneous precipitant. X-ray diffraction, field-emission scanning electron microscope, X-ray photoelectron spectrum, UV-vis spectra and fourier transform infrared spectrum were used to characterize the resulting products. The photodegradation efficiency of the prepared ammonium and hydronium jarosite was studied in a photo-Fenton-like process using methyl orange (MO) as target pollutant. The photocatalytic degradation of MO over synthetic ammonium and hydronium jarosite under various conditions, such as catalysts loading, H2O2 concentration and initial pH, has been investigated. Results show that ammonium and hydronium jarosite have satisfactory photocatalysis effect in degradation of MO azo dye, and that the reactivity of hydronium jarosite toward the mineralization of MO was higher than that of ammonium jarosite. The novel ammonium and hydronium jarosite catalysts would be important for industrial applications due to their high photoactivity, little iron leaching and low cost. (C) 2012 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jallcom.2012.08.087

文献信息

• Photo-Fenton-like degradation of azo dye methyl orange using synthetic ammonium and hydronium jarosite
  作者：Zhihui Xu、Jianru Liang、Lixiang Zhou

  DOI：10.1016/j.jallcom.2012.08.087

  日期：2013.1

  Ammonium and hydronium jarosite were prepared by hydrothermal method with urea as the homogeneous precipitant. X-ray diffraction, field-emission scanning electron microscope, X-ray photoelectron spectrum, UV-vis spectra and fourier transform infrared spectrum were used to characterize the resulting products. The photodegradation efficiency of the prepared ammonium and hydronium jarosite was studied in a photo-Fenton-like process using methyl orange (MO) as target pollutant. The photocatalytic degradation of MO over synthetic ammonium and hydronium jarosite under various conditions, such as catalysts loading, H2O2 concentration and initial pH, has been investigated. Results show that ammonium and hydronium jarosite have satisfactory photocatalysis effect in degradation of MO azo dye, and that the reactivity of hydronium jarosite toward the mineralization of MO was higher than that of ammonium jarosite. The novel ammonium and hydronium jarosite catalysts would be important for industrial applications due to their high photoactivity, little iron leaching and low cost. (C) 2012 Elsevier B.V. All rights reserved.