WSe2-loaded co-catalysts Cu3P and CNTs: Improving photocatalytic hydrogen precipitation and photocatalytic memory performance

Zhao, Huaqing; Zhang, Yan; Liu, Qing; Jing, Xiaoqing; Yang, Weiting; Akanyange, Stephen Nyabire; Liu, Jia; Xie, Hongbo; Wang, Xiutong; Crittenden, John C.; Lyu, Xianjun; Chang, Hui

doi:10.1016/j.jcis.2022.09.135

Cited by 10 publications

(1 citation statement)

References 71 publications

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“…Incorporating CNTs into wide bandgap semiconductors represents a potent approach to enhance their photocatalytic efficiency. CNTs play multiple influential roles that improve photocatalytic performance, including facilitating charge transfer and reducing the electron/hole recombination rate by trapping charge transfers and also promoting the formation of electron/hole pairs on its surface by acting as a photosensitizer. , In a study by Sobahi et al, the photocatalytic characteristics of BaTiO 3 /CNT composites were investigated, and a notable reduction in the bandgap from 3.3 to 2.62 eV was observed by adding CNTs, which led to a substantial improvement in the photodegradation of atrazine when exposed to visible light.…”

Section: Introductionmentioning

confidence: 99%

Degradation of Pollutants and Photocatalytic H₂ Evolution Using Carbon Nanotube/Ag Nanoparticle-Modified BaTiO₃ Nanoparticles

Mosavari,

Alimohammadi,

Mahdikhah

et al. 2024

ACS Appl. Nano Mater.

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A ternary nanocomposite, BaTiO 3 −CNT/Ag, was synthesized via a coprecipitation method to function as a photocatalyst for pollutant degradation and H 2 production through a water-splitting reaction. The successful preparation of the nanocomposite and the enhancement of its morphological properties were confirmed through Raman spectroscopy, X-ray diffraction/photoelectron spectroscopy (XRD/XPS), and scanning/transmission electron microscopy (SEM/TEM) studies. Utilizing transient photocurrent, photoluminescence (PL) spectroscopy, UV−visible diffuse reflectance spectroscopy (DRS), Mott−Schottky, and electrochemical impedance spectroscopy (EIS) tests, it was determined that the incorporation of carbon nanotube (CNT) and Ag into BaTiO 3 led to a promotion of charge separation efficiency up to 15 times, a decrease in the bandgap energy from 3.12 to 2.85 eV, larger band bending, lower electron/ hole recombination, and extensive lower internal resistance. In photodegradation-related studies, the response surface methodology (RSM) method was performed for experimental design to optimize the amounts of photocatalyst dosage, irradiation time, and initial dye concentration, yielding optimal values of 0.681 g/L, 67.5 min, and 1 mg/L, respectively. The sample showed outstanding photocatalytic efficiency in the degradation of different organic water pollutants, coupled with remarkable stability and reusability, as evidenced by a four-run cyclic experiment. Finally, the evaluation of H 2 production revealed a remarkable amount of 542.4 μmol/g•h for the ternary nanocomposite, which is about 5 times higher than that of the pure BaTiO 3 sample. This research provides thorough insight into the synthesis of a ternary nanocomposite that extremely enhances the charge transfer abilities and, therefore, boosts the photocatalytic H 2 production and photodegradation of pollutants.

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Section: Introductionmentioning

confidence: 99%

Degradation of Pollutants and Photocatalytic H₂ Evolution Using Carbon Nanotube/Ag Nanoparticle-Modified BaTiO₃ Nanoparticles

Mosavari,

Alimohammadi,

Mahdikhah

et al. 2024

ACS Appl. Nano Mater.

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MXene for photocatalysis and photothermal conversion: Synthesis, physicochemical properties, and applications

Zeng,

Ye,

Dong

et al. 2024

Coordination Chemistry Reviews

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Preparation of XCu@TiO2 adsorbent for high-efficient PH3 removal in anaerobic environment and evaluation of desulfurization activity of deactivated adsorbent

Jia¹,

Yang²,

Hu³

et al. 2023

Chemical Engineering Journal

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WSe2-loaded co-catalysts Cu3P and CNTs: Improving photocatalytic hydrogen precipitation and photocatalytic memory performance

Cited by 10 publications

References 71 publications

Degradation of Pollutants and Photocatalytic H₂ Evolution Using Carbon Nanotube/Ag Nanoparticle-Modified BaTiO₃ Nanoparticles

Degradation of Pollutants and Photocatalytic H₂ Evolution Using Carbon Nanotube/Ag Nanoparticle-Modified BaTiO₃ Nanoparticles

MXene for photocatalysis and photothermal conversion: Synthesis, physicochemical properties, and applications

Preparation of XCu@TiO2 adsorbent for high-efficient PH3 removal in anaerobic environment and evaluation of desulfurization activity of deactivated adsorbent

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WSe2-loaded co-catalysts Cu3P and CNTs: Improving photocatalytic hydrogen precipitation and photocatalytic memory performance

Cited by 10 publications

References 71 publications

Degradation of Pollutants and Photocatalytic H2 Evolution Using Carbon Nanotube/Ag Nanoparticle-Modified BaTiO3 Nanoparticles

Degradation of Pollutants and Photocatalytic H2 Evolution Using Carbon Nanotube/Ag Nanoparticle-Modified BaTiO3 Nanoparticles

MXene for photocatalysis and photothermal conversion: Synthesis, physicochemical properties, and applications

Preparation of XCu@TiO2 adsorbent for high-efficient PH3 removal in anaerobic environment and evaluation of desulfurization activity of deactivated adsorbent

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Product

Resources

About

Degradation of Pollutants and Photocatalytic H₂ Evolution Using Carbon Nanotube/Ag Nanoparticle-Modified BaTiO₃ Nanoparticles

Degradation of Pollutants and Photocatalytic H₂ Evolution Using Carbon Nanotube/Ag Nanoparticle-Modified BaTiO₃ Nanoparticles