Enhanced photocatalytic activity in water splitting for hydrogen generation by using TiO2 coated carbon fiber with high reusability

Nguyen, Thanh Luan; Phạm, Thi Huong; Myung, Yusik; Jung, Sung Hoon; Tran, Man Hieu; Mapari, Mitesh G.; Le, Quyet Van; Nguyen, Minh Viet; Chu, Thi Thu Hien; Kim, Tae‐Young

doi:10.1016/j.ijhydene.2022.06.025

Cited by 13 publications

(13 citation statements)

References 49 publications

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“…Previously, XRD analysis of TiO 2 /CF was conducted after 10 cycles, which kept the same structure as the original materials. Additionally, the photocatalyst TiO 2 contents remained the same from the first to the tenth cycling trials, indicating that the CF/TiO 2 material was sufficiently stable to produce H 2 …”

Section: Resultsmentioning

confidence: 90%

“…Due to the good interface interaction between CFs and TiO 2 -S, efficient charge transfer would be possible, which enables 6-fold increments in H 2 yield compared to using CFs/TiO 2 -A composite. Recently, CF/TiO 2 was tested for photocatalytic water splitting and reported enhanced photoactivity of TiO 2 with CF loading due to increased BET surface area, higher visible light absorption, and efficient charge carrier separation . Previously, obviously enhanced photoactivity of TiO 2 NPs compared to TiO 2 MPs was reported during photocatalytic CO 2 reduction to CO and CH 4 .…”

Section: Resultsmentioning

confidence: 99%

“…Recently, CF/ TiO 2 was tested for photocatalytic water splitting and reported enhanced photoactivity of TiO 2 with CF loading due to increased BET surface area, higher visible light absorption, and efficient charge carrier separation. 31 Previously, obviously enhanced photoactivity of TiO 2 NPs compared to TiO 2 MPs was reported during photocatalytic CO 2 reduction to CO and CH 4 . 42 In the current work, enhanced photocatalytic H 2 production was obviously due to higher light absorption and proficient charge carrier separation.…”

Section: Characterizationmentioning

confidence: 97%

“…However, in their work the BET surface area of CFs/TiO 2 was significantly higher than using pure TiO 2 . 31 The recombination of photogenerated electrons and holes can be further prevented by using sacrificial reagents, which use holes. The VB holes will oxidize alcohol (Alcohol + h + → H + + oxidation products), resulting in effective utilization of holes and preventing charge recombination.…”

Section: Stability Analysismentioning

confidence: 99%

“…Recently, g-C 3 N 4 /TiO 2 /CFs was investigated for photocatalytic degradation of pollutants and reported to have enhanced photoactivity and stability in multiple cycles . In another development, commercial carbon fibers coated with TiO 2 were used for photocatalytic water splitting and enhanced hydrogen production due to the narrowed band gap energy and efficient separation of photogenerated electron–hole pairs . However, there is no report available on the use of CFRP waste to construct CFs/TiO 2 composites with different nanotextures for stimulating photocatalytic hydrogen production.…”

Section: Introductionmentioning

confidence: 99%

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Recycling Carbon Fiber-Reinforced Polymers (CFRPs) to Construct CFs/TiO₂ Nanotexture with Efficient Interface Charge Transfer for Stimulating Photocatalytic Hydrogen Production

Tahir,

Alesayi,

Alshehhi

2023

Energy Fuels

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In this work, carbon fiber-reinforced polymer (CFRP) waste-derived carbon fibers (CFs) coupled with TiO2 for photocatalytic hydrogen production have been investigated. The CFs were found to be promising for enhancing visible light absorption and preventing photoinduced charge carrier recombination. The role of interface interaction and morphology was further investigated by synthesizing nanocomposites through physical mixing (CFs/TiO2) and sol–gel methods (CFs/TiO2-S). The optimized 3CFs/TiO2 produces 2.87 times more hydrogen than using only TiO2. This noticeable enhancement was due to efficient charge separation in the presence of CFs with high visible light absorption. Comparatively, the CFs/TiO2-S nanotexture produced H2 at 2268.4 μmol g–1 h–1, which is 6–12 fold greater than that for CFs/TiO2 and pristine TiO2 samples. Using the sol–gel approach, TiO2 was effectively attached over the entire surface of CFs, enabling good interface interaction and efficient charge carrier separation, resulting in significantly enhanced H2 production. Among the various operating parameters, glycerol as a sacrificial reagent was promising to improve H2 yield, whereas it has a lower photostability than methanol after five consecutive cycles. The highest AQY of 26.3% for H2 production was obtained with 150 mg of catalyst loading under low-intensity light irradiation. This study introduces a new technique to recycle solid waste CFRPs to produce CF-based composites that might be advantageous to boost performance in solar energy-related applications.

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Section: Resultsmentioning

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Section: Characterizationmentioning

confidence: 97%

Section: Stability Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Recycling Carbon Fiber-Reinforced Polymers (CFRPs) to Construct CFs/TiO₂ Nanotexture with Efficient Interface Charge Transfer for Stimulating Photocatalytic Hydrogen Production

Tahir,

Alesayi,

Alshehhi

2023

Energy Fuels

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Recent Developments in Immobilized Photocatalyst for Hydrogen Production

Wang,

Luo,

et al. 2024

ChemCatChem

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Solar‐driven water splitting for hydrogen production has emerged as one of the most promising methods for addressing environmental and energy crises. The utilization of immobilized photocatalyst for hydrogen production has attracted significant attention in recent years due to its excellent stability, high photocatalytic efficiency, and ease of recovery and reuse. Hence, a comprehensive review of the development of immobilized photocatalyst appears exceedingly significant. Herein, we initially analyze the advantages of the immobilized photocatalytic system in aspects such as light absorption, photon utilization, and charge separation. Subsequently, we introduce various assembly techniques for immobilized photocatalyst and elaborate on some representative characteristics of this immobilized system. Furthermore, we cite the examples of the application of immobilized photocatalyst in large‐scale hydrogen production to envision its future prospects. Finally, we discuss the remaining issues in this field and outline future directions of development and challenges therein. This review holds great promise for prompting the advancement of immobilized photocatalyst in the field of photocatalysis.

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Construction of freestanding BiOBr/CCFs composites: Enhanced carrier separation achieving efficient photocatalytic performance

Ai,

Zha,

Cai

et al. 2024

Chemical Engineering Science

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Enhanced photocatalytic activity in water splitting for hydrogen generation by using TiO2 coated carbon fiber with high reusability

Cited by 13 publications

References 49 publications

Recycling Carbon Fiber-Reinforced Polymers (CFRPs) to Construct CFs/TiO₂ Nanotexture with Efficient Interface Charge Transfer for Stimulating Photocatalytic Hydrogen Production

Recycling Carbon Fiber-Reinforced Polymers (CFRPs) to Construct CFs/TiO₂ Nanotexture with Efficient Interface Charge Transfer for Stimulating Photocatalytic Hydrogen Production

Recent Developments in Immobilized Photocatalyst for Hydrogen Production

Construction of freestanding BiOBr/CCFs composites: Enhanced carrier separation achieving efficient photocatalytic performance

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Enhanced photocatalytic activity in water splitting for hydrogen generation by using TiO2 coated carbon fiber with high reusability

Cited by 13 publications

References 49 publications

Recycling Carbon Fiber-Reinforced Polymers (CFRPs) to Construct CFs/TiO2 Nanotexture with Efficient Interface Charge Transfer for Stimulating Photocatalytic Hydrogen Production

Recycling Carbon Fiber-Reinforced Polymers (CFRPs) to Construct CFs/TiO2 Nanotexture with Efficient Interface Charge Transfer for Stimulating Photocatalytic Hydrogen Production

Recent Developments in Immobilized Photocatalyst for Hydrogen Production

Construction of freestanding BiOBr/CCFs composites: Enhanced carrier separation achieving efficient photocatalytic performance

Contact Info

Product

Resources

About

Recycling Carbon Fiber-Reinforced Polymers (CFRPs) to Construct CFs/TiO₂ Nanotexture with Efficient Interface Charge Transfer for Stimulating Photocatalytic Hydrogen Production

Recycling Carbon Fiber-Reinforced Polymers (CFRPs) to Construct CFs/TiO₂ Nanotexture with Efficient Interface Charge Transfer for Stimulating Photocatalytic Hydrogen Production