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Liu L, Zhou X, Xin C, Zhang B, Zhang G, Li S, Liu L, Tai X. Efficient oxidation of benzyl alcohol into benzaldehyde catalyzed by graphene oxide and reduced graphene oxide supported bimetallic Au-Sn catalysts. RSC Adv 2023; 13:23648-23658. [PMID: 37555092 PMCID: PMC10404934 DOI: 10.1039/d3ra03496h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 07/26/2023] [Indexed: 08/10/2023] Open
Abstract
A series of bimetallic and monometallic catalysts comprising Au and Sn nanoparticles loaded on graphene oxide (GO) and reduced graphene oxide (rGO) were prepared using three distinct techniques: two-step immobilization, co-immobilization, and immobilization. X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), energy dispersive X-ray (EDX), and Inductively-coupled plasma optical emission spectroscopy (ICP-OES) were used to characterize the chemical and physical properties of prepared Au-Sn bimetallic and Au or Sn monometallic nanocatalysts. The catalytic performance of the prepared nanocatalysts was evaluated in the selective oxidation of benzyl alcohol (BzOH) to benzaldehyde (BzH) using O2 as an oxidizing agent under moderate conditions. To obtain the optimal BzH yield, the experimental conditions and parameters, including the effects of the reaction time, temperature, pressure, and solvent type on BzOH oxidation, were optimized. Under optimal reaction conditions, bimetallic Au-Sn nanoparticles supported on GO (AuSn/GO-TS, 49.3%) produced a greater yield of BzH than the AuSn/rGO-TS catalysts (35.5%). The Au-Sn bimetallic catalysts were more active than the monometallic catalysts. AuSn/GO-TS and AuSn/rGO-TS prepared by the two-step immobilization method were more active than AuSn/GO-CoIM and AuSn/rGO-CoIM prepared by co-immobilization. In addition, the AuSn/GO-TS and AuSn/rGO-TS catalysts were easily separated from the mixture by centrifugation and reused at least four times without reducing the yield of BzH. These properties make Au-Sn bimetallic nanoparticles supported on GO and rGO particularly attractive for the environmentally friendly synthesis of benzaldehyde.
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Affiliation(s)
- Lili Liu
- School of Chemistry & Chemical Engineering and Environmental Engineering, Weifang University Weifang 261061 China
| | - Xiaojing Zhou
- School of Chemistry & Chemical Engineering and Environmental Engineering, Weifang University Weifang 261061 China
| | - Chunling Xin
- School of Chemistry & Chemical Engineering and Environmental Engineering, Weifang University Weifang 261061 China
| | - Baoli Zhang
- School of Chemistry & Chemical Engineering and Environmental Engineering, Weifang University Weifang 261061 China
| | - Guangman Zhang
- School of Chemistry & Chemical Engineering and Environmental Engineering, Weifang University Weifang 261061 China
| | - Shanshan Li
- School of Chemistry & Chemical Engineering and Environmental Engineering, Weifang University Weifang 261061 China
| | - Li Liu
- School of Chemistry & Chemical Engineering and Environmental Engineering, Weifang University Weifang 261061 China
| | - Xishi Tai
- School of Chemistry & Chemical Engineering and Environmental Engineering, Weifang University Weifang 261061 China
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Arjunan A, Manikandan M, Vijayaraghavan R, Sangeetha P. Highly Active and Recyclable Cu
x
Fe
3‐x
O
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NPs for Selective Oxidation of Benzyl Alcohol using TBHP as an Oxidant. ChemistrySelect 2023. [DOI: 10.1002/slct.202202776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Ayyappan Arjunan
- Division of Chemistry School of Advanced Sciences Vellore Institute of Technology Chennai campus Chennai 600127, Tamil Nadu India
| | - Marimuthu Manikandan
- Division of Chemistry School of Advanced Sciences Vellore Institute of Technology Chennai campus Chennai 600127, Tamil Nadu India
| | - Rajagopalan Vijayaraghavan
- Rajagopalan Vijayaraghavan Department of Chemistry School of Advanced Sciences Vellore Institute of Technology Vellore campus Vellore- 632014 Tamil Nadu India
| | - Palanivelu Sangeetha
- Division of Chemistry School of Advanced Sciences Vellore Institute of Technology Chennai campus Chennai 600127, Tamil Nadu India
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Zhang X, Shi Q, Liu X, Li J, Xu H, Ding H, Li G. Facile Assembly of InVO 4/TiO 2 Heterojunction for Enhanced Photo-Oxidation of Benzyl Alcohol. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1544. [PMID: 35564253 PMCID: PMC9101042 DOI: 10.3390/nano12091544] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 04/25/2022] [Accepted: 04/28/2022] [Indexed: 02/04/2023]
Abstract
In this work, an InVO4/TiO2 heterojunction composite catalyst was successfully synthesized through a facile hydrothermal method. The structural and optical characteristics of InVO4/TiO2 heterojunction composites are investigated using a variety of techniques, including powder X-ray diffraction (XRD), transmission electron microscopy (TEM), and spectroscopy techniques. The addition of InVO4 to TiO2 considerably enhanced the photocatalytic performance in selective photo-oxidation of benzyl alcohol (BA). The 10 wt% InVO4/TiO2 composite photocatalyst provided a decent 100% BA conversion with over 99% selectivity for benzaldehyde, and exhibited a maximum conversion rate of 3.03 mmol g-1 h-1, which is substantially higher than bare InVO4 and TiO2. The excellent catalytic activity of the InVO4/TiO2 photocatalyst is associated with the successful assembly of heterostructures, which promotes the charge separation and transfer between InVO4 and TiO2.
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Affiliation(s)
- Xinyu Zhang
- College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China; (X.Z.); (Q.S.); (J.L.); (H.D.)
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Quanquan Shi
- College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China; (X.Z.); (Q.S.); (J.L.); (H.D.)
| | - Xin Liu
- College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China; (X.Z.); (Q.S.); (J.L.); (H.D.)
- Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Jingmei Li
- College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China; (X.Z.); (Q.S.); (J.L.); (H.D.)
| | - Hui Xu
- College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China; (X.Z.); (Q.S.); (J.L.); (H.D.)
| | - Hongjing Ding
- College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China; (X.Z.); (Q.S.); (J.L.); (H.D.)
| | - Gao Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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Potter ME, Le Brocq JJM, Oakley AE, McShane EB, Mhembere PM, Carravetta M, Vandegehuchte BD, Raja R. Thiol Functionalised Supports for Controlled Metal Nanoparticle Formation for Improved C-C Coupling. Chem Asian J 2021; 16:3610-3614. [PMID: 34506678 DOI: 10.1002/asia.202100732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/08/2021] [Indexed: 11/07/2022]
Abstract
The myriad applications of metal nanoparticle systems have individual demands on their size, shape and electronic states, demanding novel synthetic methods to optimise these properties. Herein we report our method of exploiting strong thiol-Pd binding as a precursor for forming small, uniform Pd nanoparticles on activation. We validate our approach with a range of characterisation techniques and contrast our design strategy with an analogous wetness impregnation method, showing the drastic improvements for catalytic C-C coupling. The presence of the thiol groups offers greater control over nanoparticle formation, particularly temperature resolution on activation, potentially allowing more targeted nanoparticle formation procedures.
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Affiliation(s)
- Matthew E Potter
- Department of Chemistry, University of Southampton, Southampton, HANTS, SO17 1BJ, UK
| | - Joshua J M Le Brocq
- Department of Chemistry, University of Southampton, Southampton, HANTS, SO17 1BJ, UK
| | - Alice E Oakley
- Department of Chemistry, University of Southampton, Southampton, HANTS, SO17 1BJ, UK
| | - Evangeline B McShane
- Department of Chemistry, University of Southampton, Southampton, HANTS, SO17 1BJ, UK
| | - Panashe M Mhembere
- Department of Chemistry, University of Southampton, Southampton, HANTS, SO17 1BJ, UK
| | - Marina Carravetta
- Department of Chemistry, University of Southampton, Southampton, HANTS, SO17 1BJ, UK
| | - Bart D Vandegehuchte
- Total Research & Technology Feluy, Zone Industrielle Feluy C, B-7181, Seneffe, Belgium
| | - Robert Raja
- Department of Chemistry, University of Southampton, Southampton, HANTS, SO17 1BJ, UK
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Verma P, Le Brocq JJ, Raja R. Rational Design and Application of Covalent Organic Frameworks for Solar Fuel Production. Molecules 2021; 26:4181. [PMID: 34299457 PMCID: PMC8304392 DOI: 10.3390/molecules26144181] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/06/2021] [Accepted: 07/07/2021] [Indexed: 11/16/2022] Open
Abstract
Harnessing solar energy and converting it into renewable fuels by chemical processes, such as water splitting and carbon dioxide (CO2) reduction, is a highly promising yet challenging strategy to mitigate the effects arising from the global energy crisis and serious environmental concerns. In recent years, covalent organic framework (COF)-based materials have gained substantial research interest because of their diversified architecture, tunable composition, large surface area, and high thermal and chemical stability. Their tunable band structure and significant light absorption with higher charge separation efficiency of photoinduced carriers make them suitable candidates for photocatalytic applications in hydrogen (H2) generation, CO2 conversion, and various organic transformation reactions. In this article, we describe the recent progress in the topology design and synthesis method of COF-based nanomaterials by elucidating the structure-property correlations for photocatalytic hydrogen generation and CO2 reduction applications. The effect of using various kinds of 2D and 3D COFs and strategies to control the morphology and enhance the photocatalytic activity is also summarized. Finally, the key challenges and perspectives in the field are highlighted for the future development of highly efficient COF-based photocatalysts.
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Affiliation(s)
- Priyanka Verma
- School of Chemistry, University of Southampton, University Road, Highfield, Southampton SO17 1BJ, UK;
| | | | - Robert Raja
- School of Chemistry, University of Southampton, University Road, Highfield, Southampton SO17 1BJ, UK;
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