Oxygen vacancy induced interaction between Pt and TiO2 to improve the oxygen reduction performance

Wang, Ziyu; Jin, Xuekun; Chen, Fengjuan; Kuang, Xuanyu; Min, Junyong; Duan, Haiming; Li, Junhua; Chen, Jianjun

doi:10.1016/j.jcis.2023.07.024

Cited by 15 publications

(2 citation statements)

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“…Other precious metal deposits, such as Wang et al [72] promoted the interaction between Pt and TiO 2 by introducing oxygen vacancies through the carrier material, which facilitated the charge transfer from the carrier to Pt and exhibited excellent redox properties. Liu et al [73] successfully prepared Au-TiO 2 nanoparticles by the hydrothermal synthesis method and found that the optical band gap value of the composites decreased due to the doping of Au or the formation of oxygen vacancies, etc., which induced a narrowing of the Au-TiO 2 band gap and increased visible light absorption, thus effectively degrading the MB.…”

Section: Doping With a Single Transition Metal Elementsmentioning

confidence: 99%

Research Progress of TiO2 Modification and Photodegradation of Organic Pollutants

Mao,

Zha,

et al. 2024

Inorganics

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Titanium dioxide (TiO2) photocatalysts, characterized by exceptional photocatalytic activity, high photoelectric conversion efficiency, and economic viability, have found widespread application in recent years for azo dye degradation. However, inherent constraints, such as the material’s limited visible light absorption stemming from its bandgap and the swift recombination of charge carriers, have impeded its broader application potential. Encouragingly, these barriers can be mitigated through the modification of TiO2. In this review, the common synthesis methods of TiO2 are reviewed, and the research progress of TiO2 modification technology at home and abroad is discussed in detail, including precious metal deposition, transition metal doping, rare earth metal doping, composite semiconductors, and composite polymers. These modification techniques effectively enhance the absorption capacity of TiO2 in the visible region and reduce the recombination rate of carriers and electrons, thus significantly improving its photocatalytic performance. Finally, this paper looks forward to the future development direction of TiO2 photocatalytic materials, including the exploration of new modified materials, in-depth mechanism research, and performance optimization in practical applications, to provide useful references for further research and application of TiO2 photocatalytic materials.

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Section: Doping With a Single Transition Metal Elementsmentioning

confidence: 99%

Research Progress of TiO2 Modification and Photodegradation of Organic Pollutants

Mao,

Zha,

et al. 2024

Inorganics

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“…Alternatively, carbon is added into titanium oxide-supported catalyst layers to offset the unsatisfactory electronic conductivity. 17–20 However, carbon corrosion during the cell reversal is inevitable once the carbon exists and thus causes performance decay.…”

Section: Introductionmentioning

confidence: 99%

Constructing highly durable reversal-tolerant anodes via integrating high-surface-area Ti₄O₇ supported Pt and Ir@IrO_x for proton exchange membrane fuel cells

Li,

Mu,

Zhang

et al. 2024

Energy Environ. Sci.

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Photo‐Responsive Nanozyme Disrupts Bacterial Electron Transport Chain for Enhanced Anti‐Biofilm Therapy

Chen,

Sun,

et al. 2024

Adv Funct Materials

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The bacterial electron transport chain (ETC) plays a crucial role in biofilm energy metabolism and redox balance, making it a potential target for anti‐biofilm treatment. Herein, mesoporous nanocarbon spheres loaded with Pt nanoparticles (CS‐Pt) are developed to disrupt the bacterial ETC for photo‐enhanced anti‐biofilm. Under near‐infrared laser irradiation, CS‐Pt‐treated biofilms show a positive shift of 0.6 eV in Pt 4f binding energy and a 1.76‐fold increase in anodic current density, demonstrating that the electron loss from CS‐Pt results in an enhanced electron transfer from CS‐Pt to biofilm. Adding the electron quencher NH4Cl to the CS‐Pt‐containing biofilm sample results in reduced biofilm clearance, highlighting the critical role of enhanced electron transfer in effective biofilm eradication. Due to the multifunction of CS‐Pt in inducing hyperthermia, reactive oxgen species generation, and interrupting bacterial ETC, the critical component of ETC, extracellular DNA, in methicillin‐resistant Staphylococcus aureus (MRSA) biofilm is reduced by 89.8%, ultimately leading to a biofilm clearance of 90.3%. Additionally, CS‐Pt achieve 99.5% biofilm eradication and expedites wound healing with a rate of 78.1% in a MRSA‐infected wound model. We present an attractive approach for disintegrating biofilm through the synergistic effect of disrupting ETC, enzyme‐like activity, and phototherapy, offering an innovative perspective on combating biofilm‐associated infections.

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Oxygen vacancy induced interaction between Pt and TiO2 to improve the oxygen reduction performance

Cited by 15 publications

References 50 publications

Research Progress of TiO2 Modification and Photodegradation of Organic Pollutants

Research Progress of TiO2 Modification and Photodegradation of Organic Pollutants

Constructing highly durable reversal-tolerant anodes via integrating high-surface-area Ti₄O₇ supported Pt and Ir@IrO_x for proton exchange membrane fuel cells

Photo‐Responsive Nanozyme Disrupts Bacterial Electron Transport Chain for Enhanced Anti‐Biofilm Therapy

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Oxygen vacancy induced interaction between Pt and TiO2 to improve the oxygen reduction performance

Cited by 15 publications

References 50 publications

Research Progress of TiO2 Modification and Photodegradation of Organic Pollutants

Research Progress of TiO2 Modification and Photodegradation of Organic Pollutants

Constructing highly durable reversal-tolerant anodes via integrating high-surface-area Ti4O7 supported Pt and Ir@IrOx for proton exchange membrane fuel cells

Photo‐Responsive Nanozyme Disrupts Bacterial Electron Transport Chain for Enhanced Anti‐Biofilm Therapy

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Product

Resources

About

Constructing highly durable reversal-tolerant anodes via integrating high-surface-area Ti₄O₇ supported Pt and Ir@IrO_x for proton exchange membrane fuel cells