Unprecedented photocatalytic conversion of gaseous and liquid CO2 on graphene-impregnated Pt/Cu-TiO2: The critical role of Cu dopant

Samar Al Jitan; Yuting Li; Daniel Bahamon; Gregor Žerjav; Vikram Sagar Tatiparthi; Cyril Aubry; Mutasem Omar Misbah Sinnokrot; Zineb Matouk; Nitul Rajput; Monserrat Gutierrez; Khalid Al-Ali; Raed Hashaikeh; Albin Pintar; Lourdes F. Vega; Giovanni Palmisano

doi:10.1016/j.jece.2023.109485

Unprecedented photocatalytic conversion of gaseous and liquid CO₂ on graphene-impregnated Pt/Cu-TiO₂: The critical role of Cu dopant

Samar Al Jitan, Yuting Li, Daniel Bahamon, Gregor Žerjav, Vikram Sagar Tatiparthi, Cyril Aubry, Mutasem Omar Misbah Sinnokrot, Zineb Matouk, Nitul Rajput, Monserrat Gutierrez, Khalid Al-Ali, Raed Hashaikeh, Albin Pintar, Lourdes F. Vega, Giovanni Palmisano

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

In the context of sustainable development, the photocatalytic conversion of CO₂ represents an appealing approach to mitigate climate change while also helping the economy. In this regard, numerous catalysts have been tested for the photoreduction of gaseous CO₂; however, the photoconversion of pure liquid CO₂ has rarely been investigated. This work provides a novel approach for the application of photocatalytic CO₂ conversion through the utilization of CO₂ in its pure liquid state. Experimental results show much higher CO yields during the photoreduction of liquid CO₂ when compared to gaseous CO₂. This is ascribed to stronger interactions between CO₂ and TiO₂ when considering the solvation effect, as confirmed by DFT calculations. Results also show the positive effect of doping TiO₂ with copper. The CO yields obtained with liquid CO₂, which range from ca. 92–206 mmol·g_cat⁻¹, are the highest ever reported.

Original language	British English
Article number	109485
Journal	Journal of Environmental Chemical Engineering
Volume	11
Issue number	2
DOIs	https://doi.org/10.1016/j.jece.2023.109485
State	Published - Apr 2023

Keywords

CO photoreduction
CO utilization
DFT
Gaseous CO
Liquid CO

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.jece.2023.109485

Cite this

Al Jitan, S., Li, Y., Bahamon, D., Žerjav, G., Tatiparthi, V. S., Aubry, C., Sinnokrot, M. O. M., Matouk, Z., Rajput, N., Gutierrez, M., Al-Ali, K., Hashaikeh, R., Pintar, A., Vega, L. F., & Palmisano, G. (2023). Unprecedented photocatalytic conversion of gaseous and liquid CO₂ on graphene-impregnated Pt/Cu-TiO₂: The critical role of Cu dopant. Journal of Environmental Chemical Engineering, 11(2), Article 109485. https://doi.org/10.1016/j.jece.2023.109485

@article{f356e99514784a89823322c0b4168d0a,

title = "Unprecedented photocatalytic conversion of gaseous and liquid CO2 on graphene-impregnated Pt/Cu-TiO2: The critical role of Cu dopant",

abstract = "In the context of sustainable development, the photocatalytic conversion of CO2 represents an appealing approach to mitigate climate change while also helping the economy. In this regard, numerous catalysts have been tested for the photoreduction of gaseous CO2; however, the photoconversion of pure liquid CO2 has rarely been investigated. This work provides a novel approach for the application of photocatalytic CO2 conversion through the utilization of CO2 in its pure liquid state. Experimental results show much higher CO yields during the photoreduction of liquid CO2 when compared to gaseous CO2. This is ascribed to stronger interactions between CO2 and TiO2 when considering the solvation effect, as confirmed by DFT calculations. Results also show the positive effect of doping TiO2 with copper. The CO yields obtained with liquid CO2, which range from ca. 92–206 mmol·gcat−1, are the highest ever reported.",

keywords = "CO photoreduction, CO utilization, DFT, Gaseous CO, Liquid CO",

author = "{Al Jitan}, Samar and Yuting Li and Daniel Bahamon and Gregor {\v Z}erjav and Tatiparthi, {Vikram Sagar} and Cyril Aubry and Sinnokrot, {Mutasem Omar Misbah} and Zineb Matouk and Nitul Rajput and Monserrat Gutierrez and Khalid Al-Ali and Raed Hashaikeh and Albin Pintar and Vega, {Lourdes F.} and Giovanni Palmisano",

note = "Funding Information: We acknowledge financial support from Khalifa University through the Research and Innovation Center on CO 2 and Hydrogen ( RC2-2019-007 ). We also acknowledge financial support from Abu Dhabi Education and Knowledge Department through the Award for Research Excellence ( AARE17-8434000095 ). Grzegorz Brudecki is thankfully acknowledged for assistance with analytical chemistry techniques (GCs and HPLC). Thomas Delclos is appreciatively acknowledged for support with material characterization techniques (XRD and FTIR). Computational resources from the HPC Almesbar cluster at Khalifa University are gratefully acknowledged. Publisher Copyright: {\textcopyright} 2023 Elsevier Ltd",

year = "2023",

month = apr,

doi = "10.1016/j.jece.2023.109485",

language = "British English",

volume = "11",

journal = "Journal of Environmental Chemical Engineering",

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Al Jitan, S, Li, Y , Bahamon, D, Žerjav, G, Tatiparthi, VS, Aubry, C, Sinnokrot, MOM, Matouk, Z, Rajput, N, Gutierrez, M, Al-Ali, K, Hashaikeh, R, Pintar, A, Vega, LF & Palmisano, G 2023, 'Unprecedented photocatalytic conversion of gaseous and liquid CO₂ on graphene-impregnated Pt/Cu-TiO₂: The critical role of Cu dopant', Journal of Environmental Chemical Engineering, vol. 11, no. 2, 109485. https://doi.org/10.1016/j.jece.2023.109485

TY - JOUR

T1 - Unprecedented photocatalytic conversion of gaseous and liquid CO2 on graphene-impregnated Pt/Cu-TiO2

T2 - The critical role of Cu dopant

AU - Al Jitan, Samar

AU - Li, Yuting

AU - Bahamon, Daniel

AU - Žerjav, Gregor

AU - Tatiparthi, Vikram Sagar

AU - Aubry, Cyril

AU - Sinnokrot, Mutasem Omar Misbah

AU - Matouk, Zineb

AU - Rajput, Nitul

AU - Gutierrez, Monserrat

AU - Al-Ali, Khalid

AU - Hashaikeh, Raed

AU - Pintar, Albin

AU - Vega, Lourdes F.

AU - Palmisano, Giovanni

N1 - Funding Information: We acknowledge financial support from Khalifa University through the Research and Innovation Center on CO 2 and Hydrogen ( RC2-2019-007 ). We also acknowledge financial support from Abu Dhabi Education and Knowledge Department through the Award for Research Excellence ( AARE17-8434000095 ). Grzegorz Brudecki is thankfully acknowledged for assistance with analytical chemistry techniques (GCs and HPLC). Thomas Delclos is appreciatively acknowledged for support with material characterization techniques (XRD and FTIR). Computational resources from the HPC Almesbar cluster at Khalifa University are gratefully acknowledged. Publisher Copyright: © 2023 Elsevier Ltd

PY - 2023/4

Y1 - 2023/4

N2 - In the context of sustainable development, the photocatalytic conversion of CO2 represents an appealing approach to mitigate climate change while also helping the economy. In this regard, numerous catalysts have been tested for the photoreduction of gaseous CO2; however, the photoconversion of pure liquid CO2 has rarely been investigated. This work provides a novel approach for the application of photocatalytic CO2 conversion through the utilization of CO2 in its pure liquid state. Experimental results show much higher CO yields during the photoreduction of liquid CO2 when compared to gaseous CO2. This is ascribed to stronger interactions between CO2 and TiO2 when considering the solvation effect, as confirmed by DFT calculations. Results also show the positive effect of doping TiO2 with copper. The CO yields obtained with liquid CO2, which range from ca. 92–206 mmol·gcat−1, are the highest ever reported.

AB - In the context of sustainable development, the photocatalytic conversion of CO2 represents an appealing approach to mitigate climate change while also helping the economy. In this regard, numerous catalysts have been tested for the photoreduction of gaseous CO2; however, the photoconversion of pure liquid CO2 has rarely been investigated. This work provides a novel approach for the application of photocatalytic CO2 conversion through the utilization of CO2 in its pure liquid state. Experimental results show much higher CO yields during the photoreduction of liquid CO2 when compared to gaseous CO2. This is ascribed to stronger interactions between CO2 and TiO2 when considering the solvation effect, as confirmed by DFT calculations. Results also show the positive effect of doping TiO2 with copper. The CO yields obtained with liquid CO2, which range from ca. 92–206 mmol·gcat−1, are the highest ever reported.

KW - CO photoreduction

KW - CO utilization

KW - DFT

KW - Gaseous CO

KW - Liquid CO

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U2 - 10.1016/j.jece.2023.109485

DO - 10.1016/j.jece.2023.109485

M3 - Article

AN - SCOPUS:85148537973

SN - 2213-3437

VL - 11

JO - Journal of Environmental Chemical Engineering

JF - Journal of Environmental Chemical Engineering

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