Determination of Iron in Nano-TiO<sub>2</sub> by 1,10-phenanthrolin Spectrophotometry

Zheng Xiaomin; Wang Xuemei; Yang Ping

Volume 27 Issue 1

Jan. 2006

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Article Navigation > IRON STEEL VANADIUM TITANIUM > 2006 > 27(1): 64-67

Tan Hongxing. STEEL REHEATING TECHNOLOGIES OF SECONDARY REFINING[J]. IRON STEEL VANADIUM TITANIUM, 1994, 15(3): 64-68.

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Zheng Xiaomin, Wang Xuemei, Yang Ping. Determination of Iron in Nano-TiO₂ by 1,10-phenanthrolin Spectrophotometry[J]. IRON STEEL VANADIUM TITANIUM, 2006, 27(1): 64-67.

Tan Hongxing. STEEL REHEATING TECHNOLOGIES OF SECONDARY REFINING[J]. IRON STEEL VANADIUM TITANIUM, 1994, 15(3): 64-68.

Citation:

Zheng Xiaomin, Wang Xuemei, Yang Ping. Determination of Iron in Nano-TiO₂ by 1,10-phenanthrolin Spectrophotometry[J]. IRON STEEL VANADIUM TITANIUM, 2006, 27(1): 64-67.

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Determination of Iron in Nano-TiO₂ by 1,10-phenanthrolin Spectrophotometry

1. Panzhihua Iron & Steel Research Institute, Panzhihua 617000, Sichuan, China

Received Date: 2005-09-25
Available Online: 2023-12-06

Abstract

Abstract

A determination method of iron content in nano-TiO₂ was presented,in which the sample was dissolved into sulfuric acid and ammonium sulfate,the titania ion was masked by ammonium tartrate.The 1,10-phenanthrolin reacted with Fe²⁺ to form a stable orange-red complex in the medium of CH₃COOH—CH₃COONa(pH 5.5).The absorbance was measured at the wavelength of 510 nm.The apparent molar absorptivity is 4.7×10⁴ and it is obeyed Beer law in the range of 0~100 μg/100 mL for iron concentration.The proposed method is of very good selectivity for determining iron in nanometer titania samples,the relative standard deviation is below 4%,and the recovery is in the range of 94.95%~105.33%.
- nanometer titania,
- iron,
- 1,10-phenanthrolin

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