Metal-Organic Framework MIL-125 Derived Mg²⁺-Doped Mesoporous TiO₂ for Photocatalytic CO₂ Reduction Academic Article

abstract

• AbstractIn this study, Mg2+doped mesoporous TiO2 photocatalysts derived from Mg2+ adsorption (MA) process on MIL125, a metalorganic framework material, were prepared and employed for photocatalytic reduction of CO2 to produce CO. The Mg2+ doping concentration was controlled by varying the Mg2+ concentration in the Mg2+ adsorption process. It was demonstrated that the Mg2+ doping promoted the generation of surface Ti3+ and significantly increased transient photocurrent density. Over a 4h UV/Vis irradiation period, the best performing photocatalyst, 1MA, delivered a CO production rate 20times higher than that of P25, a commercially available TiO2 nanopowder. It is believed that the Mg2+ adsorption process introduced more favorable properties to the TiO2 photocatalysts, such as higher surface area and porosity for more reactive sites, and concentrated surface Ti3+ centers for improved charge transfer.

authors

• Li, Ying
• Zhou, Hongcai

published proceedings

• CHEMPHOTOCHEM

altmetric score

• 2.75

author list (cited authors)

• Feng, X., Pan, F., Zhang, P., Wang, X., Zhou, H., Huang, Y., & Li, Y.

citation count

• 9

complete list of authors

• Feng, Xuhui||Pan, Fuping||Zhang, Peng||Wang, Xiao||Zhou, Hong-Cai||Huang, Yongheng||Li, Ying

publication date

• January 2021

publisher

• Wiley  Publisher

keywords

• Carbon Dioxide
• Metal-organic Frameworks
• Photocatalysis
• Photoreduction
• Titanium Dioxide

Digital Object Identifier (DOI)

• 10.1002/cptc.202000181

start page

• 79

end page

• 89

volume

• 5

issue

• 1

URL

• http://dx.doi.org/10.1002/cptc.202000181

user-defined tag

• 7 Affordable and Clean Energy