In-situ growth of TiO2 imbedded Ti3C2TA nanosheets to construct PCN/Ti3C2TA MXenes 2D/3D heterojunction for efficient solar driven photocatalytic CO2 reduction towards CO and CH4 production

Tahir, Muhammad Nawaz; Tahir, Beenish

doi:10.1016/j.jcis.2021.01.099

Cited by 84 publications

(61 citation statements)

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“…However, when Ni 2 P and Ti 3 C 2 were loaded onto TiO 2 , the light absorption band edge shifted toward the visible region due to the lower band gap energy of Ni 2 P. The band gap energy was estimated from plots of the Kubelka–Munk function versus photon energy. Band gap energies of 3.10, 3.25, and 3.20 eV were observed for TiO 2 , Ti 3 C 2 /TiO 2 , and Ni 2 P/TiO 2 /Ti 3 C 2 MXene, respectively, which are much closer to the values reported in the literature. , Previously, an increase in band gap of g-C 3 N 4 was observed when it was coupled with Ti 3 C 2 . However, a slightly reduction in band gap energy was observed when Ti 3 C 2 embedded with a TiO 2 rutile phase was loaded with TiO 2 .…”

Section: Resultssupporting

confidence: 86%

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Binary Ni₂P/Ti₃C₂ Multilayer Cocatalyst Anchored TiO₂ Nanocomposite with Etchant/Oxidation Grown TiO₂ NPs for Enhancing Photocatalytic H₂ Production

Tahir

2021

Energy Fuels

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Ternary nickel phosphide (Ni2P) and titanium carbide (Ti2C2) MXene supported titanium dioxide nanoparticles (TiO2 NPs) to construct a Ni2P/TiO2 NPs/Ti3C2 MXene hybrid composite for stimulating photocatalytic hydrogen production has been investigated. The performance comparison of two-dimensional (2D) Ti3C2 MXene multilayers with in situ grown TiO2 NPs synthesized through etching and atmospheric calcination methods was conducted and promising separation of charge carriers was observed. TiO2 NPs embedded over 2D Ti3C2, synthesized through both methods, were found to have promise in promoting photoactivity, whereas 2.89 times more H2 yield was attained with TiO2 NPs embedded through the oxidation (ox) approach. Using the Ni2P/TiO2/Ti3C2-ox heterostructure, a rate of 9425 ppm g–1 h–1 of H2 was reached, 2.77, 4.81, and 8.28 times more than those using Ni2P/TiO2, TiO2/Ti3C2 and TiO2 samples, respectively. This obviously augmented H2 production rate can be ascribed to a binary cocatalyst with efficient charge carrier separation, higher light absorption, and more attachment of water molecules. Among different alcohols, glycerol was a promising reagent to yield more hydrogen in addition to having higher photostability in consecutive cycles. This study provides a new approach to construct a ternary nanocomposite with proficient charge carrier separation and would be beneficial for other energy applications.

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Section: Resultssupporting

confidence: 86%

“…01-074-8806) and similarly reported in the literature. 32,33 The XRD patterns for 2D Ti 3 C 2 MXenes appeared at 2θ values of 8.94, 18. 16, 23.47, 35.89, 41.69, 43.30, 47.76°, 60.40, 72.39, and 76.16°, ascribed to the presence of multilayer titanium carbide (JCPDS Card No.…”

Section: Resultsmentioning

confidence: 99%

Binary Ni₂P/Ti₃C₂ Multilayer Cocatalyst Anchored TiO₂ Nanocomposite with Etchant/Oxidation Grown TiO₂ NPs for Enhancing Photocatalytic H₂ Production

Tahir

2021

Energy Fuels

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“…The enhanced photocatalytic dry reforming of methane (DRM) was ascribed to higher charge transfer from g-C 3 N 4 to Ti 3 C 2 through TiO 2 (anatase and rutile) acting as a mediator. Moreover, g-C 3 N 4 having high adsorption toward CO 2 , while TiO 2 having high adsorption for CH 4 , improved the photocatalytic production of syngas …”

Section: Mxene As a Co-catalyst For Photocatalytic Co2 Reductionmentioning

confidence: 99%

Section: Mxene As a Co-catalyst For Photocatalytic Co2 Reductionmentioning

confidence: 99%

Titanium Carbide (Ti₃C₂) MXene as a Promising Co-catalyst for Photocatalytic CO₂ Conversion to Energy-Efficient Fuels: A Review

et al. 2021

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Photocatalytic CO2 reduction to produce valuable chemicals and fuels using solar energy provides an appealing route to alleviate global energy and environmental problems. However, available semiconductor materials are less efficient to promote CO2 conversion to energy-efficient fuels. In the current development, titanium carbide (Ti3C2) MXene as a co-catalyst with a high conductivity, abundant active sites, and large specific surface area, is a preeminent candidate to promote semiconductor photoactivity. This review provides an overview in the utilization of Ti3C2 as a promising co-catalyst for maximizing CO2 reduction efficiency and product selectivity. In the mainstream, developments in Ti3C2 MXene-based composites for CO2 conversion through different processes, such as CO2 reduction with water, photocatalytic CO2 methanation, and natural gas flaring reduction to synthesis gas, have been discussed. The review also gives an overview of the factors crucial to affect photocatalytic properties of Ti3C2, such as morphological, electrical, optical, and luminescence characteristics. The fundamental mechanism of Ti3C2T x for photocatalytic reduction of CO2 and strategies to improve the photocatalytic performance are also described. The great emphasis is given on in situ TiO2 production and hybridization with other semiconductors to obtain an efficient co-catalyst for selective CO2 reduction. Lastly, conclusions and future prospectives to further explore in the field of energy and fuels are included.

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“…Among all the strategies to deal with the above issues, solar energy-driven conversion of CO 2 into energy-rich fuels has been a promising methodology to solve the global environmental problems and energy crisis simultaneously. 1–16 Typically, PCR reactions can produce various valuable chemical fuels (such as CO, CH 4 , methanol, syngas or other chemicals). Specifically, syngas as a kind of product of PCR is a critical feedstock for the production of valuable chemicals in industry by well-established industrial processes ( e.g.…”

Section: Introductionmentioning

confidence: 99%

Bioinspired spike-like double yolk–shell structured TiO₂@ZnIn₂S₄ for efficient photocatalytic CO₂ reduction

She

Guan

Sheng

et al. 2022

Catal. Sci. Technol.

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In-situ growth of TiO2 imbedded Ti3C2TA nanosheets to construct PCN/Ti3C2TA MXenes 2D/3D heterojunction for efficient solar driven photocatalytic CO2 reduction towards CO and CH4 production

Cited by 84 publications

References 50 publications

Binary Ni₂P/Ti₃C₂ Multilayer Cocatalyst Anchored TiO₂ Nanocomposite with Etchant/Oxidation Grown TiO₂ NPs for Enhancing Photocatalytic H₂ Production

Binary Ni₂P/Ti₃C₂ Multilayer Cocatalyst Anchored TiO₂ Nanocomposite with Etchant/Oxidation Grown TiO₂ NPs for Enhancing Photocatalytic H₂ Production

Titanium Carbide (Ti₃C₂) MXene as a Promising Co-catalyst for Photocatalytic CO₂ Conversion to Energy-Efficient Fuels: A Review

Bioinspired spike-like double yolk–shell structured TiO₂@ZnIn₂S₄ for efficient photocatalytic CO₂ reduction

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In-situ growth of TiO2 imbedded Ti3C2TA nanosheets to construct PCN/Ti3C2TA MXenes 2D/3D heterojunction for efficient solar driven photocatalytic CO2 reduction towards CO and CH4 production

Cited by 84 publications

References 50 publications

Binary Ni2P/Ti3C2 Multilayer Cocatalyst Anchored TiO2 Nanocomposite with Etchant/Oxidation Grown TiO2 NPs for Enhancing Photocatalytic H2 Production

Binary Ni2P/Ti3C2 Multilayer Cocatalyst Anchored TiO2 Nanocomposite with Etchant/Oxidation Grown TiO2 NPs for Enhancing Photocatalytic H2 Production

Titanium Carbide (Ti3C2) MXene as a Promising Co-catalyst for Photocatalytic CO2 Conversion to Energy-Efficient Fuels: A Review

Bioinspired spike-like double yolk–shell structured TiO2@ZnIn2S4 for efficient photocatalytic CO2 reduction

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Binary Ni₂P/Ti₃C₂ Multilayer Cocatalyst Anchored TiO₂ Nanocomposite with Etchant/Oxidation Grown TiO₂ NPs for Enhancing Photocatalytic H₂ Production

Binary Ni₂P/Ti₃C₂ Multilayer Cocatalyst Anchored TiO₂ Nanocomposite with Etchant/Oxidation Grown TiO₂ NPs for Enhancing Photocatalytic H₂ Production

Titanium Carbide (Ti₃C₂) MXene as a Promising Co-catalyst for Photocatalytic CO₂ Conversion to Energy-Efficient Fuels: A Review

Bioinspired spike-like double yolk–shell structured TiO₂@ZnIn₂S₄ for efficient photocatalytic CO₂ reduction