Recent Advances in TiO2-Based Photocatalysts for Reduction of CO2 to Fuels

Nguyen, Thang Phan; Nguyen, Dang; Nguyen, Van‐Huy; Le, Thu‐Ha; Vo, Dai‐Viet N.; Trịnh, Quang Thang; Bae, Sa-Rang; Chae, Sang Youn; Kim, Soo Young; Le, Quyet Van

doi:10.3390/nano10020337

Cited by 162 publications

(82 citation statements)

References 113 publications

(223 reference statements)

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“…In addition, TiO 2 has attracted more and more attention as an effective nanomaterial for the photocatalytic reduction of carbon dioxide (CO 2 ) [117]. It has been combined with intermittent and renewable solar energy storage in the form of connections chemicals in order to convert anthropogenic CO 2 gas into fuels.…”

Section: Titanium Dioxide Nanoparticlesmentioning

confidence: 99%

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Nanotoxicology and Nanosafety: Safety-by-Design and Testing at a Glance

Zielińska

Costa

Ferreira

et al. 2020

IJERPH

146

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This review offers a systematic discussion about nanotoxicology and nanosafety associated with nanomaterials during manufacture and further biomedical applications. A detailed introduction on nanomaterials and their most frequently uses, followed by the critical risk aspects related to regulatory uses and commercialization, is provided. Moreover, the impact of nanotoxicology in research over the last decades is discussed, together with the currently available toxicological methods in cell cultures (in vitro) and in living organisms (in vivo). A special focus is given to inorganic nanoparticles such as titanium dioxide nanoparticles (TiO2NPs) and silver nanoparticles (AgNPs). In vitro and in vivo case studies for the selected nanoparticles are discussed. The final part of this work describes the significance of nano-security for both risk assessment and environmental nanosafety. “Safety-by-Design” is defined as a starting point consisting on the implementation of the principles of drug discovery and development. The concept “Safety-by-Design” appears to be a way to “ensure safety”, but the superficiality and the lack of articulation with which it is treated still raises many doubts. Although the approach of “Safety-by-Design” to the principles of drug development has helped in the assessment of the toxicity of nanomaterials, a combination of scientific efforts is constantly urgent to ensure the consistency of methods and processes. This will ensure that the quality of nanomaterials is controlled and their safe development is promoted. Safety issues are considered strategies for discovering novel toxicological-related mechanisms still needed to be promoted.

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Section: Titanium Dioxide Nanoparticlesmentioning

confidence: 99%

“…It has been combined with intermittent and renewable solar energy storage in the form of connections chemicals in order to convert anthropogenic CO 2 gas into fuels. Recently, there has been considerable progress in the improvement of the performance of TiO 2 photocatalysts in reducing CO 2 [117].…”

Section: Titanium Dioxide Nanoparticlesmentioning

confidence: 99%

Nanotoxicology and Nanosafety: Safety-by-Design and Testing at a Glance

Zielińska

Costa

Ferreira

et al. 2020

IJERPH

146

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“…Using CO 2 as a carbon feedstock to prepare carbon-based fuels can help alleviate the energy crisis and global warming at the same time, and has become a current research hotspot in the fields of both energy and environment ( Olah et al, 2011 ; Kondratenko et al, 2013 ; Aresta et al, 2014 ; Ganesh, 2014 ; Li et al, 2019 ). However, the liner molecule with high thermodynamic stability and kinetic inertness makes it a great challenge for the activation and conversion of CO 2 ( Ola and Maroto-Valer, 2015 ; Wei L. et al, 2018 ; Li et al, 2019 ; Nguyen et al, 2020 ). A lot of energy needs to be injected to break the C=O bond (dissociation energy about 750 kJ mol −1 ) in CO 2 ( Kim et al, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

“…Besides, surface oxygen vacancies with typical defect states can trap electrons or holes to inhibit their recombination ( Wang et al, 2018 ). To sum up, the significance of surface oxygen vacancies on defected TiO 2 has been ascertained in the enhancement of CO 2 adsorption, activation, dissolution, and stabilization of reaction intermediates ( Nguyen et al, 2020 ). In addition, metal/nonmetal ion doping is used to introduce additional energy level between the band gap of TiO 2 , resulting in the reduced band width and enhanced visible light adsorption ( Tu et al, 2014 ; Ola and Maroto-Valer, 2015 ; Shehzad et al, 2018b ; Patil et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in TiO2-Based Heterojunctions for Photocatalytic CO2 Reduction With Water Oxidation: A Review

Teng

Wang

et al. 2021

Front. Chem.

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Photocatalytic conversion of CO2 into solar fuels has gained increasing attention due to its great potential for alleviating the energy and environmental crisis at the same time. The low-cost TiO2 with suitable band structure and high resistibility to light corrosion has proven to be very promising for photoreduction of CO2 using water as the source of electrons and protons. However, the narrow spectral response range (ultraviolet region only) as well as the rapid recombination of photo-induced electron-hole pairs within pristine TiO2 results in the low utilization of solar energy and limited photocatalytic efficiency. Besides, its low selectivity toward photoreduction products of CO2 should also be improved. Combination of TiO2 with other photoelectric active materials, such as metal oxide/sulfide semiconductors, metal nanoparticles and carbon-based nanostructures, for the construction of well-defined heterostructures can enhance the quantum efficiency significantly by promoting visible light adsorption, facilitating charge transfer and suppressing the recombination of charge carriers, resulting in the enhanced photocatalytic performance of the composite photocatalytic system. In addition, the adsorption and activation of CO2 on these heterojunctions are also promoted, therefore enhancing the turnover frequency (TOF) of CO2 molecules, so as to the improved selectivity of photoreduction products. This review focus on the recent advances of photocatalytic CO2 reduction via TiO2-based heterojunctions with water oxidation. The rational design, fabrication, photocatalytic performance and CO2 photoreduction mechanisms of typical TiO2-based heterojunctions, including semiconductor-semiconductor (S-S), semiconductor-metal (S-M), semiconductor-carbon group (S-C) and multicomponent heterojunction are reviewed and discussed. Moreover, the TiO2-based phase heterojunction and facet heterojunction are also summarized and analyzed. In the end, the current challenges and future prospects of the TiO2-based heterostructures for photoreduction of CO2 with high efficiency, even for practical application are discussed.

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“…In any event, the discovery of a new photocatalyst for better synergistic performance has never stopped. To date, several types of catalysts have been employed for CO 2 conversion, including metal oxides, nitrides, sulfides, selenides, chalcogenides, and perovskite materials [ 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ]. These materials have made significant progress, but many of them have several drawbacks, such as high-cost synthetic approaches, lengthy/complicated synthesis process, long-term instability, and less catalytic activity.…”

Section: Introductionmentioning

confidence: 99%

Recent Developments in Lead and Lead-Free Halide Perovskite Nanostructures towards Photocatalytic CO2 Reduction

Hiragond

Powar

2020

Nanomaterials

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Perovskite materials have been widely considered as emerging photocatalysts for CO2 reduction due to their extraordinary physicochemical and optical properties. Perovskites offer a wide range of benefits compared to conventional semiconductors, including tunable bandgap, high surface energy, high charge carrier lifetime, and flexible crystal structure, making them ideal for high-performance photocatalytic CO2 reduction. Notably, defect-induced perovskites, for example, crystallographic defects in perovskites, have given excellent opportunities to tune perovskites’ catalytic properties. Recently, lead (Pb) halide perovskite and their composites or heterojunction with other semiconductors, metal nanoparticles (NPs), metal complexes, graphene, and metal-organic frameworks (MOFs) have been well established for CO2 conversion. Besides, various halide perovskites have come under focus to avoid the toxicity of lead-based materials. Therefore, we reviewed the recent progress made by Pb and Pb-free halide perovskites in photo-assisted CO2 reduction into useful chemicals. We also discussed the importance of various factors like change in solvent, structure defects, and compositions in the fabrication of halide perovskites to efficiently convert CO2 into value-added products.

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Recent Advances in TiO2-Based Photocatalysts for Reduction of CO2 to Fuels

Cited by 162 publications

References 113 publications

Nanotoxicology and Nanosafety: Safety-by-Design and Testing at a Glance

Nanotoxicology and Nanosafety: Safety-by-Design and Testing at a Glance

Recent Advances in TiO2-Based Heterojunctions for Photocatalytic CO2 Reduction With Water Oxidation: A Review

Recent Developments in Lead and Lead-Free Halide Perovskite Nanostructures towards Photocatalytic CO2 Reduction

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