Efficiency of Mechanochemical Ball Milling Technique in the Preparation of Fe/TiO2 Photocatalysts

Shabnam Taghipour; King Lun Yeung; Behzad Ataie-Ashtiani

doi:10.3390/chemengineering6050077

Efficiency of Mechanochemical Ball Milling Technique in the Preparation of Fe/TiO₂ Photocatalysts

Shabnam Taghipour, King Lun Yeung, Behzad Ataie-Ashtiani

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6 Citations (Scopus)

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Abstract

Rapid population growth and widespread industrialization are the main contributing factors to the increasing contamination of the world’s diminishing freshwater resources. This work investigates Fe/TiO₂ as an efficient and sustainable photocatalyst for treating organic micropollutants in water. The photocatalysts prepared by these mechanochemical methods used a high-energy ball milling technique to manipulate Fe/TiO₂’s structural, optical, and catalytic properties for the photo-oxidation of 2,4-Dichlorophenol (2,4-DCP). Doping with iron effectively reduced the band gap of rutile TiO₂ from 3 to 2.22 eV. By reducing the ball/powder ratio from 34 to 7, the removal efficiency of 2,4-DCP increased from 65.2 to 84.7%. Measuring the TOC indicated 63.5 and 49.4% mineralization by Fe/TiO₂-7 and rutile TiO₂, respectively, after 24 h. The energy yields for the Fe/TiO₂ and rutile TiO₂ were 0.13 and 0.06 g 2,4-DCP/kW h, respectively.

Original language	English
Article number	77
Number of pages	16
Journal	ChemEngineering
Volume	6
Issue number	5
DOIs	https://doi.org/10.3390/chemengineering6050077
Publication status	Published - Oct 2022
Externally published	Yes

Keywords

ball milling
doping
efficiency
photocatalyst
TiO/Fe

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title = "Efficiency of Mechanochemical Ball Milling Technique in the Preparation of Fe/TiO2 Photocatalysts",

abstract = "Rapid population growth and widespread industrialization are the main contributing factors to the increasing contamination of the world{\textquoteright}s diminishing freshwater resources. This work investigates Fe/TiO2 as an efficient and sustainable photocatalyst for treating organic micropollutants in water. The photocatalysts prepared by these mechanochemical methods used a high-energy ball milling technique to manipulate Fe/TiO2{\textquoteright}s structural, optical, and catalytic properties for the photo-oxidation of 2,4-Dichlorophenol (2,4-DCP). Doping with iron effectively reduced the band gap of rutile TiO2 from 3 to 2.22 eV. By reducing the ball/powder ratio from 34 to 7, the removal efficiency of 2,4-DCP increased from 65.2 to 84.7%. Measuring the TOC indicated 63.5 and 49.4% mineralization by Fe/TiO2-7 and rutile TiO2, respectively, after 24 h. The energy yields for the Fe/TiO2 and rutile TiO2 were 0.13 and 0.06 g 2,4-DCP/kW h, respectively.",

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author = "Shabnam Taghipour and Yeung, {King Lun} and Behzad Ataie-Ashtiani",

year = "2022",

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doi = "10.3390/chemengineering6050077",

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AU - Yeung, King Lun

AU - Ataie-Ashtiani, Behzad

PY - 2022/10

Y1 - 2022/10

N2 - Rapid population growth and widespread industrialization are the main contributing factors to the increasing contamination of the world’s diminishing freshwater resources. This work investigates Fe/TiO2 as an efficient and sustainable photocatalyst for treating organic micropollutants in water. The photocatalysts prepared by these mechanochemical methods used a high-energy ball milling technique to manipulate Fe/TiO2’s structural, optical, and catalytic properties for the photo-oxidation of 2,4-Dichlorophenol (2,4-DCP). Doping with iron effectively reduced the band gap of rutile TiO2 from 3 to 2.22 eV. By reducing the ball/powder ratio from 34 to 7, the removal efficiency of 2,4-DCP increased from 65.2 to 84.7%. Measuring the TOC indicated 63.5 and 49.4% mineralization by Fe/TiO2-7 and rutile TiO2, respectively, after 24 h. The energy yields for the Fe/TiO2 and rutile TiO2 were 0.13 and 0.06 g 2,4-DCP/kW h, respectively.

AB - Rapid population growth and widespread industrialization are the main contributing factors to the increasing contamination of the world’s diminishing freshwater resources. This work investigates Fe/TiO2 as an efficient and sustainable photocatalyst for treating organic micropollutants in water. The photocatalysts prepared by these mechanochemical methods used a high-energy ball milling technique to manipulate Fe/TiO2’s structural, optical, and catalytic properties for the photo-oxidation of 2,4-Dichlorophenol (2,4-DCP). Doping with iron effectively reduced the band gap of rutile TiO2 from 3 to 2.22 eV. By reducing the ball/powder ratio from 34 to 7, the removal efficiency of 2,4-DCP increased from 65.2 to 84.7%. Measuring the TOC indicated 63.5 and 49.4% mineralization by Fe/TiO2-7 and rutile TiO2, respectively, after 24 h. The energy yields for the Fe/TiO2 and rutile TiO2 were 0.13 and 0.06 g 2,4-DCP/kW h, respectively.

KW - ball milling

KW - doping

KW - efficiency

KW - photocatalyst

KW - TiO/Fe

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ER -

Efficiency of Mechanochemical Ball Milling Technique in the Preparation of Fe/TiO₂ Photocatalysts

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Keywords

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