Synergistic Effect of Boron Doping and Porous Structures on Titanium Dioxide for Efficient Photocatalytic Nitrate Reduction to Nitrogen in Pure Water

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 27, 2025

Photocatalytic reduction of nitrate to N2 holds great significance for environmental governance. However, the selectivity is influenced by sacrificial agents and kinds cocatalysts (such as Pt Ag). The presence unconsumed can aggravate pollution, while noble metal-based increase application costs. Herein, porous boron-doped TiO2 (B-TiO2) was successfully synthesized using sol-gel method with Amberlite IRA-900 a template. incorporation 33% boron into (33% B-TiO2) achieved 100% (20 ppm) conversion rate 94.5% without need during process. catalyst's unique multistage structure not only enhances light absorption ability but also significantly provides abundant surface adsorption sites. Additionally, theoretical studies show that doping effectively modulates band increases electron density at Ti active sites, both which are essential achieving high efficiency. This work emphasizes synergistic effect between morphology control electronic regulation in promoting photocatalytic nitrogen, providing valuable insights treatment wastewater.

Language: Английский

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Engineering Ce Promoter to Regulate H^* Species to Boost Tandem Electrocatalytic Nitrate Reduction for Ammonia Synthesis

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 5, 2025

Abstract The renewable‐energy‐powered electroreduction of nitrate (NO 3 RR) to ammonia emerges as a generalist for contamination remediation, green synthesis, and even advanced energy conversion, garnering significant interest. However, it comes across limited yield selectivity due the imbalance active hydrogen (H * ) supply within cutting‐edge single‐center Cu‐based materials. Herein, secondary Ce entity is engineered into Cu/MoO 2 @C substrate by thermal treatment Ce‐doping NENU‐5 precursors provide H effectively. A high NH rate (20.3 ± 0.7 mg h −1 cat. NO − −to−NH Faradaic efficiency (92 3%) at −0.4 V (vs RHE) can be reached in 5%Ce‐Cu/MoO @C, ranking among recently reported state‐of‐the‐art catalysts. core this boosting performance lies dual‐site tandem catalysis, which Cu site adsorbs activates , dissociates water generate respectively. And spillover from vicinal x intermediates on promotes hydrogenation generation with selectivity. Theoretical calculations further indicate that engineering optimizes electronic properties, activation adsorbed decreases barrier rate‐determining step catalysis. These findings consolidate positive role rare earth center highlight its corresponding catalysis sustainable synthesis.

Language: Английский

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Reactive species spillover effect for boosting electrocatalytic reaction

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162560 - 162560

Published: April 1, 2025

Language: Английский

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Axial Chlorine-Induced Symmetry-Breaking Iron Single-Atom Catalyst for Electrochemical Ammonia Synthesis

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 4507 - 4518

Published: March 3, 2025

Language: Английский

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Advances of copper-based metal-organic frameworks and their derivatives in nitrate reduction to ammonia

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116076 - 116076

Published: March 1, 2025

Language: Английский

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Ru-doped ZnO Nanoparticles for the Detection of Triethylamine

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(16), P. 19211 - 19220

Published: Aug. 9, 2024

As an organic compound, it has significant application value. Triethylamine (TEA) is widely used in chemical, pharmaceutical, pesticide, dye, and other fields. However, its toxicity makes impact on the environment human health undeniable. Therefore, developing low-power, high response, ultraselectivity, stability sensors for detecting this toxic gas crucial healthcare environmental monitoring. In work, we synthesized Ru-doped ZnO (Rux%ZnO) nanoparticles, which exhibited multiple enhanced sensing performance TEA detection. Typically, response value (Ra/Rg) of Ru0.05%ZnO sensor to 50 ppm at 260 °C as 2907, nearly 15 times higher than pristine ZnO. addition, compared with sensor, optimal operating temperature also been reduced by 80 °C. Exceptionally, under condition a relative humidity 85% (set 25 °C), Ra/Rg Ru0.05ZnO 10 still up 126. Finally, mechanism Rux%ZnO was explored.

Language: Английский

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High-entropy catalysts for electrocatalytic reduction reaction

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1009, P. 176970 - 176970

Published: Oct. 11, 2024

Language: Английский

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Metallenes for electrocatalytic nitrate reduction

Materials Today Chemistry, Journal Year: 2024, Volume and Issue: 42, P. 102418 - 102418

Published: Nov. 20, 2024

Language: Английский

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Iridium-incorporated cobalt hydroxide electrodeposited on titanium meshes enables electrosynthesis of ammonia and aromatic amine

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 9, 2024

An Ir-incorporated cobalt hydroxide electrodeposited on titanium meshes (Ir@Co(OH) 2 /TM) is developed to achieve efficient removal of nitrogen-containing pollutants, while simultaneously synthesizing high-value ammonia and aromatic amines.

Language: Английский

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Physical and electronic structure optimization of multivalent multi-dimensional Cu-based electrodes for efficient electrocatalytic nitrate reduction to ammonia

Applied Surface Science, Journal Year: 2024, Volume and Issue: unknown, P. 162078 - 162078

Published: Dec. 1, 2024

Language: Английский

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