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Rochard G, Genty E, Giraudon JM, Poupin C, Lamonier JF, Siffert S, La Parola V, Liotta LF, Cousin R. Synthesis of Gold Nanoparticles over CoAl Mixed Oxide for Ethanol Oxidation Reaction. Molecules 2024; 29:2285. [PMID: 38792146 PMCID: PMC11123866 DOI: 10.3390/molecules29102285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/27/2024] [Accepted: 05/08/2024] [Indexed: 05/26/2024] Open
Abstract
Catalytic total oxidation is an effective technique for the treatment of industrial VOCs principally resulting from industrial processes using solvents and usually containing mono-aromatics (BTEX) and oxygenated compounds (acetone, ethanol, butanone). The aim of this work is to deposit gold nanoparticles on CoAl mixed oxide issued from layered double hydroxide (LDH) precursor by using the deposition precipitation (DP) method, which is applied with two modifications, labeled method (A) and method (B), in order to enhance the interaction of the HAuCl4 precursor with the support. Method (A) involves the hydrolysis of the HAuCl4 precursor after addition of the support, while in method (B), the gold precursor is hydrolyzed before adding the support. The two methods were applied using as support the CoAl mixed oxide and the LDH precursor. Samples were characterized by several physical chemical techniques and evaluated for ethanol total oxidation. Method (B) allowed the ethanol oxidation activity to be enhanced for the resulting Au/CoAlOx catalysts thanks to the high surface concentration of Co2+ and improved reducibility at low temperature. The presence of gold permits to minimize the formation of by-products, notably, methanol, allowed for a total oxidation of ethanol at lower temperature than the corresponding support.
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Affiliation(s)
- Guillaume Rochard
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEiV), Université du Littoral Côte d’Opale (ULCO), 59140 Dunkerque, France; (G.R.); (E.G.); (C.P.); (S.S.)
| | - Eric Genty
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEiV), Université du Littoral Côte d’Opale (ULCO), 59140 Dunkerque, France; (G.R.); (E.G.); (C.P.); (S.S.)
| | - Jean-Marc Giraudon
- Unité de Catalyse et Chimie du Solide (UCCS), UMR 8181, Université de Lille, CNRS, Centrale Lille, Université Artois, 59000 Lille, France (J.-F.L.)
| | - Christophe Poupin
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEiV), Université du Littoral Côte d’Opale (ULCO), 59140 Dunkerque, France; (G.R.); (E.G.); (C.P.); (S.S.)
| | - Jean-François Lamonier
- Unité de Catalyse et Chimie du Solide (UCCS), UMR 8181, Université de Lille, CNRS, Centrale Lille, Université Artois, 59000 Lille, France (J.-F.L.)
| | - Stéphane Siffert
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEiV), Université du Littoral Côte d’Opale (ULCO), 59140 Dunkerque, France; (G.R.); (E.G.); (C.P.); (S.S.)
| | - Valeria La Parola
- Institute for the Study of Nanostructured Materials (ISMN)-CNR, Via Ugo La Malfa, 153, 90146 Palermo, Italy;
| | - Leonarda Francesca Liotta
- Institute for the Study of Nanostructured Materials (ISMN)-CNR, Via Ugo La Malfa, 153, 90146 Palermo, Italy;
| | - Renaud Cousin
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEiV), Université du Littoral Côte d’Opale (ULCO), 59140 Dunkerque, France; (G.R.); (E.G.); (C.P.); (S.S.)
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Hu J, Yu B, Sun W, Lu L. Calcination-controlled performance optimization of iron-vanadium bimetallic oxide nanoparticles for synergistic tumor therapy. J Mater Chem B 2023; 11:2886-2894. [PMID: 36942660 DOI: 10.1039/d3tb00113j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
Calcination has been widely demonstrated as a favorable protocol for producing various inorganic nanomaterials for tumor therapy. However, little attention has been paid to its effect on the biotherapeutic efficacy of inorganic nanomaterials. Herein, we compare the effects of different calcination atmospheres on the therapeutic efficacy of Fe-V-O (FVO) nanomaterials. We find that compared with FVO nanomaterials synthesized by calcination in air, those prepared by argon calcination have a lower metallic valence state and a higher near-infrared light absorption capacity, hence resulting in significantly better biosafety and higher chemodynamic therapy (CDT)/photothermal therapy (PTT) efficacy. This study demonstrates that the therapeutic efficacy of inorganic nanomaterials can be optimized by employing different thermal treatment atmospheres, which provides new insights into the development of efficient anti-tumor agents.
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Affiliation(s)
- Jiaxin Hu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Bin Yu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.
| | - Wenbo Sun
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.
| | - Lehui Lu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
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Deng Z, Ma C, Li Z, Luo Y, Zhang L, Sun S, Liu Q, Du J, Lu Q, Zheng B, Sun X. High-Efficiency Electrochemical Nitrate Reduction to Ammonia on a Co 3O 4 Nanoarray Catalyst with Cobalt Vacancies. ACS APPLIED MATERIALS & INTERFACES 2022; 14:46595-46602. [PMID: 36198136 DOI: 10.1021/acsami.2c12772] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Electrocatalytic nitrate reduction reaction (NO3RR) affords a bifunctional character in the carbon-free ammonia synthesis and remission of nitrate pollution in water. Here, we fabricated the Co3O4 nanosheet array with cobalt vacancies on carbon cloth (vCo-Co3O4/CC) by in situ etching aluminum-doped Co3O4/CC, which exhibits an excellent Faradaic efficiency of 97.2% and a large NH3 yield as high as 517.5 μmol h-1 cm-2, better than the pristine Co3O4/CC. Theoretical calculative results imply that the cobalt vacancies can tune the local electronic environment around Co sites of Co3O4, increasing the charge and reducing the electron cloud density of Co sites, which is thus conducive to adsorption of NO3- on Co sites for greatly enhanced nitrate reduction. Furthermore, the vCo-Co3O4 (311) facet presents excellent NO3RR activity with a low energy barrier of about 0.63 eV on a potential-determining step, which is much smaller than pristine Co3O4 (1.3 eV).
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Affiliation(s)
- Zhiqin Deng
- College of Chemistry, Sichuan University, Chengdu610064, Sichuan, China
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu610054, Sichuan, China
| | - Chaoqun Ma
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing100083, Beijing, China
| | - Zerong Li
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu610054, Sichuan, China
| | - Yongsong Luo
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu610054, Sichuan, China
| | - Longcheng Zhang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu610054, Sichuan, China
| | - Shengjun Sun
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu610054, Sichuan, China
| | - Qian Liu
- Institute for Advanced Study, Chengdu University, Chengdu610106, Sichuan, China
| | - Juan Du
- College of Chemistry, Sichuan University, Chengdu610064, Sichuan, China
| | - Qipeng Lu
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing100083, Beijing, China
| | - Baozhan Zheng
- College of Chemistry, Sichuan University, Chengdu610064, Sichuan, China
- College of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang453007, Henan, China
| | - Xuping Sun
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu610054, Sichuan, China
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan250014, Shandong, China
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Qin L, Lu W, Wu Z, Zhou W. Catalyst Performance of the Calcined Products of CoAl Layered Double Hydroxide in the Aerobic Oxidation of Ethylbenzene. Catal Letters 2022. [DOI: 10.1007/s10562-022-04117-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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