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Sana SS, Raorane CJ, Raj V, Alagumalai K, Gangadhar L, Gupta VK, Kim SC, Kaushik AK. Electron Beam-Supported Fabrication of Biocompatible Silver/iota-Carrageenan for Wound Healing Application. ACS APPLIED BIO MATERIALS 2024; 7:3636-3648. [PMID: 38729923 DOI: 10.1021/acsabm.3c01110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2024]
Abstract
Silver nanoparticles (AgNPs) are a potent antibacterial agent, especially when used to treat bacteria that are multidrug resistant. However, it is challenging to eliminate the hazardous reducing agents that remain in AgNPs produced by the conventional chemical reduction process. To overcome these challenges, the presented research demonstrates the fabrication of AgNPs using iota-carrageenan (ι-carra) as a carbohydrate polymer using electron beam (EB) irradiation. Well-characterized ι-carra@AgNPs have a face-centered cubic (FCC) structure with spherical morphology and an average size of 26 nm. Herein we explored the approach for fabricating ι-carra@AgNPs that is suitable for scaling up the production of nanoparticles that exhibit excellent water stability. Further, the optimized ι-carra@AgNPs exhibited considerable antibacterial activity of 40% and 30% inhibition when tested with Gram-negative Escherichia coli ATCC 43895 and Gram-positive Staphylococcus aureus (S. aureus) (ATCC 6538), respectively, and low cytotoxicity at 10-50 μg/mL. To establish the potential biomedical application, as proof of the concept, the ι-carra@AgNPs showed significant antibiofilm activity at 20 μg/mL and also showed 95% wound healing abilities at 50 μg/mL compared to the nontreated control groups. Electron beam assisted ι-carra@AgNPs showed significant beneficial effects against specific bacterial strains and may provide a guide for the development of new antibacterial materials for wound dressing for large-scale production for biomedical applications.
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Affiliation(s)
- Siva Sankar Sana
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea
| | | | - Vinit Raj
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea
- College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | | | - Lekshmi Gangadhar
- Department of Nanotechnology, Nanodot Research Private Limited, Nagercoil, Kanyakumari 629001, India
| | - Vijai Kumar Gupta
- Biorefining and Advanced Materials Research Centre, SRUC, Barony Campus, Parkgate, Dumfries DG13NE, United Kingdom
| | - Seong-Cheol Kim
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea
| | - Ajeet Kumar Kaushik
- NanoBioTech Laboratory, Department of Environmental Engineering, Florida Polytechnic University, Lakeland, Florida 33805, United States
- School of Technology, Woxsen University, Hyderabad, Telangana 502345, India
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2
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Zhang Z, Huang J, Chen W, Hao J, Xi J, Xiao J, He B, Chen J. Probing the Activity Enhancement of Carbocatalyst with the Anchoring of Atomic Metal. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2434. [PMID: 37686942 PMCID: PMC10489856 DOI: 10.3390/nano13172434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 08/24/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023]
Abstract
Enhanced catalysis for organic transformation is essential for the synthesis of high-value compounds. Atomic metal species recently emerged as highly effective catalysts for organic reactions with high activity and metal utilization. However, developing efficient atomic catalysts is always an attractive and challenging topic in the modern chemical industry. In this work, we report the preparation and activity enhancement of nitrogen- and sulfur-codoped holey graphene (NSHG) with the anchoring of atomic metal Pd. When employed as the catalyst for nitroarenes reduction reactions, the resultant Pd/NSHG composite exhibits remarkably high catalytic activity due to the co-existence of dual-active components (i.e., catalytically active NSHG support and homogeneous dispersion of atomic metal Pd). In the catalytic 4-nitrophenol (4-NP) reduction reaction, the efficiency (turnover frequency) is 3.99 × 10-2 mmol 4-NP/(mg cat.·min), which is better than that of metal-free nitrogen-doped holey graphene (NHG) (2.3 × 10-3 mmol 4-NP/(mg cat.·min)) and NSHG carbocatalyst (3.8 × 10-3 mmol 4-NP/(mg cat.·min)), the conventional Pd/C and other reported metal-based catalysts. This work provides a rational design strategy for the atomic metal catalysts loaded on active doped graphene support. The resultant Pd/NSHG dual-active component catalyst (DACC) is also anticipated to bring great application potentials for a broad range of organic fields, such as organic synthesis, environment treatment, energy storage and conversion.
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Affiliation(s)
- Zhe Zhang
- School of Chemistry and Environmental Engineering, Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan 430205, China; (Z.Z.); (J.H.); (W.C.)
| | - Jie Huang
- School of Chemistry and Environmental Engineering, Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan 430205, China; (Z.Z.); (J.H.); (W.C.)
| | - Wei Chen
- School of Chemistry and Environmental Engineering, Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan 430205, China; (Z.Z.); (J.H.); (W.C.)
| | - Jufang Hao
- Staff Development Institute of China National Tobacco Corporation (CNTC), Zhengzhou 450008, China;
| | - Jiangbo Xi
- School of Chemistry and Environmental Engineering, Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan 430205, China; (Z.Z.); (J.H.); (W.C.)
| | - Jian Xiao
- School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, China
| | - Baojiang He
- Zhengzhou Tobacco Research Institute of China National Tobacco Corporation (CNTC), Zhengzhou 450001, China
| | - Jun Chen
- School of Chemistry and Environmental Engineering, Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan 430205, China; (Z.Z.); (J.H.); (W.C.)
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Liu J, Qi P, Chen F, Li X, Zhang J, Qian L, Gu X, Sun J, Zhang S. Improving the hygroscopicity and flame retardancy of polyamide 6 fabrics by surface coating with β-FeOOH and sulfamic acid. CHEMOSPHERE 2023:139115. [PMID: 37270037 DOI: 10.1016/j.chemosphere.2023.139115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 04/06/2023] [Accepted: 06/01/2023] [Indexed: 06/05/2023]
Abstract
The combustion of polyamide 6 (PA6) fabrics releases toxic smoke, which will pollute the environment and threaten human life and health. Herein, a novel eco-friendly flame-retardant coating was constructed and applied to PA6 fabrics. Needle-like β-FeOOH with a high surface area was firstly constructed onto the surface of PA6 fabrics by the hydrolysis of Fe3+, sulfamic acid (SA) was then introduced by a facile dipping and nipping method. The growth of β-FeOOH also endowed the PA6 fabrics with certain hydrophilicity and moisture permeability, resulting in improved comfortability. The limiting oxygen index (LOI) of the prepared PA6/Fe/6SA sample was increased to 27.2% from 18.5% of control PA6 sample, and the damaged length was reduced to only 6.0 cm from 12.0 cm of control PA6 sample. Meanwhile, the melt dripping was also eliminated. The heat release rate and total heat release values of the PA6/Fe/6SA sample were decreased to 318.5 kW/m2 and 17.0 MJ/m2, respectively, compared with those of control PA6 (494.7 kW/m2 and 21.4 MJ/m2). The analysis results indicated that nonflammable gases diluted flammable gases. The observation of char residues demonstrated that the stable char layer was formed, which effectively inhibited the transfer of heat and oxygen. The organic solvent-free coating does not contain any conventional halogens/phosphorus elements, which provides a useful methodology to produce environmentally friendly flame-retardant fabrics.
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Affiliation(s)
- Jian Liu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Peng Qi
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Feng Chen
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xiaobei Li
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Jingfan Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Lijun Qian
- Engineering Laboratory of Non-halogen Flame Retardants for Polymers, Beijing Technology and Business University, Beijing, 100048, China
| | - Xiaoyu Gu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Jun Sun
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China; Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing, 100029, China.
| | - Sheng Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China; Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing, 100029, China.
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Li J, Wang B, Fang W, Xia Z, Li Y, Yan X, Chen L. N, B dual-doped carbons as metal-free catalysts for hydrogenation of quinoline with formic acid. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2023.113040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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Rangraz Y, Heravi MM. Recent advances in metal-free heteroatom-doped carbon heterogonous catalysts. RSC Adv 2021; 11:23725-23778. [PMID: 35479780 PMCID: PMC9036543 DOI: 10.1039/d1ra03446d] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 06/22/2021] [Indexed: 12/15/2022] Open
Abstract
The development of cost-effective, efficient, and novel catalytic systems is always an important topic for heterogeneous catalysis from academia and industrial points of view. Heteroatom-doped carbon materials have gained more and more attention as effective heterogeneous catalysts to replace metal-based catalysts, because of their excellent physicochemical properties, outstanding structure characteristics, environmental compatibility, low cost, inexhaustible resources, and low energy consumption. Doping of heteroatoms can tailor the properties of carbons for different utilizations of interest. In comparison to pure carbon catalysts, these catalysts demonstrate superior catalytic activity in many organic reactions. This review highlights the most recent progress in synthetic strategies to fabricate metal-free heteroatom-doped carbon catalysts including single and multiple heteroatom-doped carbons and the catalytic applications of these fascinating materials in various organic transformations such as oxidation, hydrogenation, hydrochlorination, dehydrogenation, etc.
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Affiliation(s)
- Yalda Rangraz
- Department of Chemistry, School of Physics and Chemistry, Alzahra University Vanak Tehran Iran
| | - Majid M Heravi
- Department of Chemistry, School of Physics and Chemistry, Alzahra University Vanak Tehran Iran
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6
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Zhang S, Zhu J, Zhang X, Zhu R, Ge F, Xu Y. The removal mechanism of nitrobenzene by the Cu-Fe/Carbon material under different aeration conditions. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123584. [PMID: 33264851 DOI: 10.1016/j.jhazmat.2020.123584] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/13/2020] [Accepted: 07/24/2020] [Indexed: 06/12/2023]
Abstract
Zero-valent Cu-Fe bimetallic porous carbon materials were successfully applied to remediate organic wastewater. In this work, we successfully recycled the layered double hydroxides (LDHs) adsorbed with Orange II (OII) to form a zero-valent Cu-Fe bimetallic porous carbon material (CuFe/Carbon). The characterization results showed that CuFe/Carbon was a zero-valent Cu-Fe bimetallic porous graphene-like carbon material. In the course of the experiment, we found that aeration condition had a great influence on the activity of CuFe/Carbon. The removal efficiency of nitrobenzene (NB) was 100 % in nitrogen system and 48 % in air system. The active species of O2- and OH was formed under air condition, while there was no active species under nitrogen condition. NB was reduced to aniline directly under nitrogen condition. We proposed there were reduction and oxidation mechanisms under different aeration conditions. This work mainly investigated the conversion process of a novel material under different reaction conditions, which provided theoretical support for the removal of organic matters.
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Affiliation(s)
- Sisi Zhang
- College of Environment and Resources, Xiangtan University, Xiangtan, 411105, China
| | - Jiayi Zhu
- College of Environment and Resources, Xiangtan University, Xiangtan, 411105, China
| | - Xiwang Zhang
- College of Environment and Resources, Xiangtan University, Xiangtan, 411105, China
| | - Runliang Zhu
- Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Fei Ge
- College of Environment and Resources, Xiangtan University, Xiangtan, 411105, China
| | - Yin Xu
- College of Environment and Resources, Xiangtan University, Xiangtan, 411105, China.
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7
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Hadian-Dehkordi L, Rezaei A, Ramazani A, Jaymand M, Samadian H, Zheng L, Deng X, Zheng H. Amphiphilic Carbon Quantum Dots as a Bridge to a Pseudohomogeneous Catalyst for Selective Oxidative Cracking of Alkenes to Aldehydes: A Nonmetallic Oxidation System. ACS APPLIED MATERIALS & INTERFACES 2020; 12:31360-31371. [PMID: 32598137 DOI: 10.1021/acsami.0c05025] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The oxidative cleavage of alkenes to the corresponding aldehydes using new amphiphilic carbon quantum dots (A-CQDs) as a pseudohomogeneous carbocatalyst is achieved for the first time through green and sustainable chemical processes. In this work, we successfully design a recyclable pseudohomogeneous catalyst based on A-CQDs, which is decorated with 1-aminopropyl-3-methyl-imidazolium chloride and stearic acid. The functionalization is conducted to introduce a hydrophilic/hydrophobic functionality on the surface of the catalyst to achieve high catalyst availability in polar and nonpolar media with the green goal of eliminating organic (co)solvents and additives. This amphiphilic carbocatalyst provides high mass transferability to the biphasic system, which is beneficial to promoting the oxidative cracking of a variety of olefins into corresponding aldehydes with a substrate/A-CQD ratio of 150. Around 87% of the substrates are converted to the related aldehydes using the carbocatalyst in the presence of H2O2, in pure water, without using a phase-transfer catalyst or any additives and organic solvents, which is comparable with the current metal-based cleavage systems. Surprisingly, A-CQDs exhibit high catalytic activity for the scission of electron-deficient C═C bond of coumarin derivatives, accompanied by the cleavage of C-O bonds to produce the corresponding salicylaldehyde derivatives without overoxidation to acid. As a brief conclusion, A-CQDs exhibit high conversion efficiency without significant loss of activity even after six catalytic cycles. The conversion of alkenes into aldehydes is fast and high-throughput without overoxidation to acids and is accompanied by excellent solubility and stability in various solvents. Moreover, the product and the catalyst are recoverable from the reaction medium by simple extraction. So, this pseudohomogeneous carbocatalyst promises new horizons in imminent "catalytic age". All in all, this paper provides a significant and novel advancement in carbocatalyst chemistry.
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Affiliation(s)
- Leila Hadian-Dehkordi
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah 67145-1673, Iran
| | - Aram Rezaei
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah 67145-1673, Iran
| | - Ali Ramazani
- Department of Chemistry, University of Zanjan, Zanjan 45371-38791, Iran
| | - Mehdi Jaymand
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah 67145-1673, Iran
| | - Hadi Samadian
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah 67145-1673, Iran
| | - Lingxia Zheng
- Department of Applied Chemistry, Zhejiang University of Technology, Hangzhou 310032, China
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, China
| | - Xiaolei Deng
- Department of Applied Chemistry, Zhejiang University of Technology, Hangzhou 310032, China
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, China
| | - Huajun Zheng
- Department of Applied Chemistry, Zhejiang University of Technology, Hangzhou 310032, China
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, China
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8
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Sulfur–doped Graphene as an Efficient Metal–free Carbocatalyst for the Synthesis of 1,5–Benzodiazepines Derivatives. ChemistrySelect 2020. [DOI: 10.1002/slct.201904310] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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9
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Wang Y, Dong X, Zhao L, Xue Y, Zhao X, Li Q, Xia Y. Facile and Green Fabrication of Carrageenan-Silver Nanoparticles for Colorimetric Determination of Cu 2+ and S 2. NANOMATERIALS 2020; 10:nano10010083. [PMID: 31906386 PMCID: PMC7023203 DOI: 10.3390/nano10010083] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 12/24/2019] [Accepted: 12/27/2019] [Indexed: 12/25/2022]
Abstract
In the present work, silver nanoparticles (AgNPs) were prepared by a simple and green method using carrageenan as reducing and capping agent. The as-synthesized carrageenan-AgNPs was demonstrated as an effective duel colorimetric sensing for selective and sensitive recognition of Cu2+ and S2−, which could be used to detect these ions with naked eyes. In addition, the possible sensing mechanism was that Cu2+ ions caused serious aggregation of carrageenan-AgNPs, which led to the color change of carrageenan-AgNPs. AgNPs were etched by S2− forming Ag2S, which played an important role in the determination of S2− ions. Furthermore, it has been successfully applied to the determination of Cu2+ and S2− in tap water and lake water, showing its great potential for the analysis of environmental water samples.
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Affiliation(s)
- Yesheng Wang
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (Y.W.); (X.D.); (L.Z.); (Y.X.); (Q.L.)
| | - Xueyi Dong
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (Y.W.); (X.D.); (L.Z.); (Y.X.); (Q.L.)
| | - Li Zhao
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (Y.W.); (X.D.); (L.Z.); (Y.X.); (Q.L.)
| | - Yun Xue
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (Y.W.); (X.D.); (L.Z.); (Y.X.); (Q.L.)
| | - Xihui Zhao
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (Y.W.); (X.D.); (L.Z.); (Y.X.); (Q.L.)
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials, Qingdao University, Qingdao 266071, China;
- Correspondence:
| | - Qun Li
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (Y.W.); (X.D.); (L.Z.); (Y.X.); (Q.L.)
| | - Yanzhi Xia
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials, Qingdao University, Qingdao 266071, China;
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10
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Feng L, Qin Z, Huang Y, Peng K, Wang F, Yan Y, Chen Y. Boron-, sulfur-, and phosphorus-doped graphene for environmental applications. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 698:134239. [PMID: 31505340 DOI: 10.1016/j.scitotenv.2019.134239] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 08/21/2019] [Accepted: 09/01/2019] [Indexed: 06/10/2023]
Abstract
The control of environmental pollutants is a global concern. Recently, heteroatom-doped graphene has drawn increasing attention due to their widespread applications in removing and detecting environmental pollutants. Owing to the introduction of heteroatoms into pristine graphene, the properties of heteroatom-doped graphene have been significantly enhanced in physic, chemistry, and biology. This review focuses on the approaches for synthesis and characterization of boron-, sulfur-, and phosphorus-doped graphene and their applications in the fields of adsorption, catalysis, and detection for environmental pollutants. The mechanisms of environmental applications, including π-π interactions, complexation, hydrophobic interactions, electronic conductivity, and active sites and reactive radicals, are elaborated. Furthermore, the challenges associated with the use of heteroatom-doped graphene materials and their prospective applications are also proposed.
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Affiliation(s)
- Leiyu Feng
- State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, 1239 Siping Road, Shanghai 200092, China
| | - Zhiyi Qin
- State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Yujun Huang
- State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Kangshou Peng
- State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Feng Wang
- State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Yuanyuan Yan
- College of Chemistry and Environmental Engineering, Yancheng Teachers University, Yancheng, 224002, China
| | - Yinguang Chen
- State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, 1239 Siping Road, Shanghai 200092, China.
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11
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Quality Improvement of Few-Layers Defective Graphene from Biomass and Application for H 2 Generation. NANOMATERIALS 2019; 9:nano9060895. [PMID: 31248147 PMCID: PMC6632024 DOI: 10.3390/nano9060895] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 06/10/2019] [Accepted: 06/11/2019] [Indexed: 11/16/2022]
Abstract
Pyrolysis of filmogenic natural polymers gives rise to the formation of films of few-layers defective, undoped, and doped graphenes with low electrical conductivity (3000 to 5000 Ω/sq). For the sake of valorization of biomass wastes, it would be of interest to decrease the density of structural defects in order to increase the conductivity of the resulting few-layers graphene samples. In the present study, analytical and spectroscopic evidence is provided showing that by performing the pyrolysis at the optimal temperature (1100 °C), under a low percentage of H2, a significant decrease in the density of defects related to the presence of residual oxygen can be achieved. This improvement in the quality of the resulting few-layers defective graphene is reflected in a decrease by a factor of about 3 or 5 for alginic acid and chitosan, respectively, of the electrical resistance. Under optimal conditions, few-layers defective graphene films with a resistance of 1000 Ω /sq were achieved. The electrode made of high-quality graphene prepared at 1100 °C under Ar/H2 achieved a H2 production of 3.62 µmol with a positive applied bias of 1.1 V under LED illumination for 16 h.
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12
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Shang SS, Gao S. Heteroatom‐Enhanced Metal‐Free Catalytic Performance of Carbocatalysts for Organic Transformations. ChemCatChem 2019. [DOI: 10.1002/cctc.201900336] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Sen S. Shang
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian 116023 P. R. China
| | - Shuang Gao
- Dalian National Laboratory for Clean Energy Dalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian 116023 P. R. China
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13
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Rendón-Patiño A, Niu J, Doménech-Carbó A, García H, Primo A. Polystyrene as Graphene Film and 3D Graphene Sponge Precursor. NANOMATERIALS 2019; 9:nano9010101. [PMID: 30654444 PMCID: PMC6358832 DOI: 10.3390/nano9010101] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 01/10/2019] [Indexed: 11/16/2022]
Abstract
Polystyrene as a thin film on arbitrary substrates or pellets form defective graphene/graphitic films or powders that can be dispersed in water and organic solvents. The materials were characterized by visible absorption, Raman and X-ray photoelectron spectroscopy, electron and atomic force microscopy, and electrochemistry. Raman spectra of these materials showed the presence of the expected 2D, G, and D peaks at 2750, 1590, and 1350 cm−1, respectively. The relative intensity of the G versus the D peak was taken as a quantitative indicator of the density of defects in the G layer.
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Affiliation(s)
- Alejandra Rendón-Patiño
- Instituto de Tecnología Química, Consejo Superior de Investigaciones Científicas-Universitat Politécnica de Valencia, Av. De los Naranjos s/n, 46022 Valencia, Spain.
| | - Jinan Niu
- Instituto de Tecnología Química, Consejo Superior de Investigaciones Científicas-Universitat Politécnica de Valencia, Av. De los Naranjos s/n, 46022 Valencia, Spain.
| | - Antonio Doménech-Carbó
- Departament de Química Analítica. Universitat de València. Dr. Moliner, 50, 46100 Burjassot (València), Spain.
| | - Hermenegildo García
- Instituto de Tecnología Química, Consejo Superior de Investigaciones Científicas-Universitat Politécnica de Valencia, Av. De los Naranjos s/n, 46022 Valencia, Spain.
| | - Ana Primo
- Instituto de Tecnología Química, Consejo Superior de Investigaciones Científicas-Universitat Politécnica de Valencia, Av. De los Naranjos s/n, 46022 Valencia, Spain.
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14
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Zhang L, Jie S, Liu Z. Bicontinuous mesoporous Co, N co-doped carbon catalysts with high catalytic performance for ethylbenzene oxidation. NEW J CHEM 2019. [DOI: 10.1039/c9nj00453j] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bicontinuous Co, N co-doped mesoporous carbon catalysts achieved superior catalytic performance for selective oxidation of ethylbenzene.
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Affiliation(s)
- Lushuang Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha
- China
| | - Shanshan Jie
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha
- China
| | - Zhigang Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha
- China
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15
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Liu S, Cui L, Peng Z, Wang J, Hu Y, Yu A, Wang H, Peng P, Li FF. Eco-friendly synthesis of N,S co-doped hierarchical nanocarbon as a highly efficient metal-free catalyst for the reduction of nitroarenes. NANOSCALE 2018; 10:21764-21771. [PMID: 30431044 DOI: 10.1039/c8nr07083k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Heteroatom-doped carbon nanomaterials are effective metal-free catalysts for organic reactions. However, S-doped carbocatalysts are relatively unexplored due to challenges related to the synthesis of S-doped nanocarbon. Herein, we employed a facile, low-cost and eco-friendly approach to construct a N,S co-doped hierarchical carbon nanomaterial (NSHC) via the pyrolysis of an azo-sulphonate dye pollutant intercalated layered double hydroxide. The as-prepared NSHC possesses a two-dimensional hierarchical porous structure with ultrathin carbon nanosheets uniformly distributed on hexagonal carbon nanoplates, endowing the material with a high specific surface area of 1260 m2 g-1. Attributed to the synergistic effects of N,S co-doping, the high specific surface area and the interconnected porous architecture, NSHC demonstrates excellent catalytic activity and selectivity in the reduction of nitroarenes. Among the reported carbocatalysts for nitrobenzene reduction using hydrazine hydrate, NSHC shows the highest turnover frequency value of 4.89 h-1. Furthermore, NSHC exhibits remarkable recyclability and generality for the reduction of various aromatic nitro compounds.
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Affiliation(s)
- Sijie Liu
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
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16
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Wang Z, Pu Y, Wang D, Wang JX, Chen JF. Recent advances on metal-free graphene-based catalysts for the production of industrial chemicals. Front Chem Sci Eng 2018. [DOI: 10.1007/s11705-018-1722-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Esteve-Adell I, He J, Ramiro F, Atienzar P, Primo A, García H. Catalyst-free one step synthesis of large area vertically stacked N-doped graphene-boron nitride heterostructures from biomass source. NANOSCALE 2018; 10:4391-4397. [PMID: 29450410 DOI: 10.1039/c7nr08424b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A procedure for the one-step preparation of films of few-layer N-doped graphene on top of nanometric hexagonal boron nitride sheets ((N)graphene/h-BN) based on the pyrolysis at 900 °C under an inert atmosphere of a film of chitosan containing about 20 wt% of ammonium borate salt as a precursor is reported. During the pyrolysis a spontaneous segregation of (N)graphene and boron nitride layers takes place. The films were characterized by optical microscopy that shows a thin graphene overlayer covering the boron nitride layer, the latter showing characteristic cracks, and by XPS measurements at different monitoring angles from 0° to 50° where an increase in the proportion of C vs. B and N was observed. The resulting (N)graphene/h-BN films were also characterized by Raman, HRTEM, SEM, FIB-SEM and AFM. The thickness of the (N)graphene and h-BN layers can be controlled by varying the concentration of precursors and the spin coating rate and is typically below 5 nm. Electrical conductivity measurements using microelectrodes can cause the burning of the graphene layer at high intensities, while lower intensities show that (N)graphene/h-BN films behave as capacitors in the range of positive voltages.
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Affiliation(s)
- Ivan Esteve-Adell
- Instituto Universitario de Tecnología Química (CSIC-UPV), Universidad Politécnica de Valencia, Av. de los Naranjos s/n, 46022, Valencia, Spain.
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18
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Xi J, Wang Q, Liu J, Huan L, He Z, Qiu Y, Zhang J, Tang C, Xiao J, Wang S. N,P-dual-doped multilayer graphene as an efficient carbocatalyst for nitroarene reduction: A mechanistic study of metal-free catalysis. J Catal 2018. [DOI: 10.1016/j.jcat.2018.01.003] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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19
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Dhakshinamoorthy A, He J, Franconetti A, Asiri AM, Primo A, Garcia H. Defective graphene as a metal-free catalyst for chemoselective olefin hydrogenation by hydrazine. Catal Sci Technol 2018. [DOI: 10.1039/c7cy02404e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of defective graphenes containing or not containing N, B, S and other heteroatoms exhibited general activity as metal-free catalysts for the hydrogenation of CC double bonds by hydrazine in the presence of oxygen.
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Affiliation(s)
| | - Jinbao He
- Instituto Universitario de Tecnología Química Consejo Superior de Investigaciones Científicas-Universitat Politécnica de Valencia
- Universitat Politècnica de València
- Spain
| | - Antonio Franconetti
- Departamento Química Orgánica
- Facultad de Química
- Universidad de Sevilla
- 41012 Sevilla
- Spain
| | - Abdullah M. Asiri
- Centre of Excellence for Advanced Materials Research
- King Abdulaziz University
- Jeddah
- Saudi Arabia
| | - Ana Primo
- Instituto Universitario de Tecnología Química Consejo Superior de Investigaciones Científicas-Universitat Politécnica de Valencia
- Universitat Politècnica de València
- Spain
| | - Hermenegildo Garcia
- Instituto Universitario de Tecnología Química Consejo Superior de Investigaciones Científicas-Universitat Politécnica de Valencia
- Universitat Politècnica de València
- Spain
- Centre of Excellence for Advanced Materials Research
- King Abdulaziz University
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20
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Duraivel M, Nagappan S, Balamuralitharan B, Selvam S, Karthick SN, Prabakar K, Ha CS, Kim HJ. Superior one-pot synthesis of a doped graphene oxide electrode for a high power density supercapacitor. NEW J CHEM 2018. [DOI: 10.1039/c8nj01672k] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The facile one-pot synthesis of sulfur-doped reduced graphene oxide results in a high powder density and easily reproducible electrode material.
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Affiliation(s)
- Malarkodi Duraivel
- Department of Electrical and Computer Engineering
- Pusan National University
- Busan-46241
- South Korea
| | - Saravanan Nagappan
- Department of Polymer Science and Engineering
- Pusan National University
- Busan-46241
- Republic of Korea
| | - B. Balamuralitharan
- Department of Electrical and Computer Engineering
- Pusan National University
- Busan-46241
- South Korea
| | - S. Selvam
- Department of Chemical and Biochemical Engineering
- Dongguk University
- Pil-Dong
- Republic of Korea
| | - S. N. Karthick
- Department of Chemistry
- Bharathiar University
- Coimbatore-641046
- India
| | - K. Prabakar
- Department of Electrical and Computer Engineering
- Pusan National University
- Busan-46241
- South Korea
| | - Chang-Sik Ha
- Department of Polymer Science and Engineering
- Pusan National University
- Busan-46241
- Republic of Korea
| | - Hee-Je Kim
- Department of Electrical and Computer Engineering
- Pusan National University
- Busan-46241
- South Korea
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21
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Urgoitia G, SanMartin R, Herrero MT, Domínguez E. Aerobic Cleavage of Alkenes and Alkynes into Carbonyl and Carboxyl Compounds. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03654] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Garazi Urgoitia
- Department of Organic Chemistry
II, Faculty of Science and Technology, University of the Basque Country (UPV-EHU), 48940 Leioa, Spain
| | - Raul SanMartin
- Department of Organic Chemistry
II, Faculty of Science and Technology, University of the Basque Country (UPV-EHU), 48940 Leioa, Spain
| | - María Teresa Herrero
- Department of Organic Chemistry
II, Faculty of Science and Technology, University of the Basque Country (UPV-EHU), 48940 Leioa, Spain
| | - Esther Domínguez
- Department of Organic Chemistry
II, Faculty of Science and Technology, University of the Basque Country (UPV-EHU), 48940 Leioa, Spain
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22
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Primo A, Parvulescu V, Garcia H. Graphenes as Metal-Free Catalysts with Engineered Active Sites. J Phys Chem Lett 2017; 8:264-278. [PMID: 27997186 DOI: 10.1021/acs.jpclett.6b01996] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This Perspective article highlights how recent discoveries on the activity of defective graphene to promote different organic reactions as metal-free catalysts has led to propose certain substructures present on these defective graphenes as active sites. The sustainability of using as catalysts graphenes obtained from biomass and the possibility to generate active sites by introducing defects on the sheet are the two main characteristics triggering research in this area. Emphasis is made in the need to gain understanding on the nature of the active sites and how this understanding requires the combination of conventional kinetic experiments as well as advanced characterization tools. The relationship between catalysis by graphene and that by organocatalysis has also been remarked.
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Affiliation(s)
- Ana Primo
- Instituto de Tecnología Química CSIC-UPV, Universitat Politecnica de Valencia , Av. de los Naranjos, s/n, 46022 Valencia, Spain
| | - Vasile Parvulescu
- Department of Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest , Bdul Regina Elisabeta 4-12, Bucharest 030016, Romania
| | - Hermenegildo Garcia
- Instituto de Tecnología Química CSIC-UPV, Universitat Politecnica de Valencia , Av. de los Naranjos, s/n, 46022 Valencia, Spain
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23
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Chen B, Li F, Mei Q, Yang Y, Liu H, Yuan G, Han B. Synthesis of nitrogen and sulfur co-doped hierarchical porous carbons and metal-free oxidative coupling of silanes with alcohols. Chem Commun (Camb) 2017; 53:13019-13022. [DOI: 10.1039/c7cc07931a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Hierarchically porous N and S co-doped carbon was used as an efficient and robust metal-free catalyst for oxidative coupling of silanes with alcohols.
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Affiliation(s)
- Bingfeng Chen
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloid and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Fengbo Li
- CAS Key Laboratory of Green Printing
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
- P. R. China
| | - Qingqing Mei
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloid and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Youdi Yang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloid and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Huizhen Liu
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloid and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Guoqing Yuan
- CAS Key Laboratory of Green Printing
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
- P. R. China
| | - Buxing Han
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloid and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
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24
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Tong J, Li W, Bo L, Wang H, Hu Y, Zhang Z, Mahboob A. Selective oxidation of styrene catalyzed by cerium-doped cobalt ferrite nanocrystals with greatly enhanced catalytic performance. J Catal 2016. [DOI: 10.1016/j.jcat.2016.10.003] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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25
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Pattisson S, Nowicka E, Gupta UN, Shaw G, Jenkins RL, Morgan DJ, Knight DW, Hutchings GJ. Tuning graphitic oxide for initiator- and metal-free aerobic epoxidation of linear alkenes. Nat Commun 2016; 7:12855. [PMID: 27687877 PMCID: PMC5056438 DOI: 10.1038/ncomms12855] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 08/09/2016] [Indexed: 11/21/2022] Open
Abstract
Graphitic oxide has potential as a carbocatalyst for a wide range of reactions. Interest in this material has risen enormously due to it being a precursor to graphene via the chemical oxidation of graphite. Despite some studies suggesting that the chosen method of graphite oxidation can influence the physical properties of the graphitic oxide, the preparation method and extent of oxidation remain unresolved for catalytic applications. Here we show that tuning the graphitic oxide surface can be achieved by varying the amount and type of oxidant. The resulting materials differ in level of oxidation, surface oxygen content and functionality. Most importantly, we show that these graphitic oxide materials are active as unique carbocatalysts for low-temperature aerobic epoxidation of linear alkenes in the absence of initiator or metal. An optimum level of oxidation is necessary and materials produced via conventional permanganate-based methods are far from optimal. Graphitic oxide is readily produced by the oxidation of graphite. Here the authors show that the amount and nature of the oxidant can be used to tune the properties of graphitic oxide, and furthermore report a carbocatalyst for alkene epoxidation without the need for metal or initiators.
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Affiliation(s)
- Samuel Pattisson
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
| | - Ewa Nowicka
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
| | - Upendra N Gupta
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
| | - Greg Shaw
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
| | - Robert L Jenkins
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
| | - David J Morgan
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
| | - David W Knight
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
| | - Graham J Hutchings
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
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26
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Di Valentin C, Ferrighi L, Fazio G. Theoretical Studies of Oxygen Reactivity of Free-Standing and Supported Boron-Doped Graphene. CHEMSUSCHEM 2016; 9:1061-1077. [PMID: 27031193 DOI: 10.1002/cssc.201501439] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 01/07/2016] [Indexed: 06/05/2023]
Abstract
Graphene inertness towards chemical reactivity can be considered as an accepted postulate by the research community. This limit has been recently overcome by chemically and physically modifying graphene through non-metal doping or interfacing with acceptor/donor materials (metals or semiconductors). As a result, outstanding performances as catalytic, electrocatalytic, and photocatalytic material have been observed. In this critical Review we report computational work performed, by our group, on the reactivity of free-standing, metal- and semiconductor-supported B-doped graphene towards oxygen, which is at the basis of extremely important energy-related chemical processes, such as the oxygen reduction reaction. It appears that a combination of doping and interfacing approaches for the activation of graphene can open unconventional and unprecedented reaction paths, thus boosting the potential of modified graphene in many chemical applications.
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Affiliation(s)
- Cristiana Di Valentin
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via Cozzi 55, 20125, Milano, Italy.
| | - Lara Ferrighi
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via Cozzi 55, 20125, Milano, Italy
| | - Gianluca Fazio
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via Cozzi 55, 20125, Milano, Italy
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27
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El Kadib A. Metal-Polysaccharide Interplay: Beyond Metal Immobilization, Graphenization-Induced-Anisotropic Growth. CHEMSUSCHEM 2016; 9:238-240. [PMID: 26811986 DOI: 10.1002/cssc.201501609] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Indexed: 06/05/2023]
Abstract
Such sweet support: Metal-polysaccharide interplay affords, after pyrolytic transformation, highly active catalysts based on anisotropically oriented nanoparticles supported on graphene sheets.
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Affiliation(s)
- Abdelkrim El Kadib
- Euro-med Research Center, Engineering Division, Euro-Mediterranean University of Fes (UEMF), Fès-Shore, Route de Sidi Hrazem, 30070, Fès, Morocco.
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28
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Hassani F, Tavakol H, Keshavarzipour F, Javaheri A. A simple synthesis of sulfur-doped graphene using sulfur powder by chemical vapor deposition. RSC Adv 2016. [DOI: 10.1039/c6ra02109c] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
S-doped graphene has synthesized by CVD, using Fe/CaCO3 as a catalyst, acetylene as a carbon resource and sulfur powder as a sulfur resource.
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Affiliation(s)
- Fahimeh Hassani
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 8415683111
- Iran
| | - Hossein Tavakol
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 8415683111
- Iran
| | | | - Amin Javaheri
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 8415683111
- Iran
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29
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Fu L, Chen Y, Zhao S, Liu Z, Zhu R. Sulfur-mediated synthesis of N-doped carbon supported cobalt catalysts derived from cobalt porphyrin for ethylbenzene oxidation. RSC Adv 2016. [DOI: 10.1039/c5ra26509f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nitrogen-doped carbon supported cobalt catalysts are synthesized by a sulfur-mediated heat treatment.
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Affiliation(s)
- Lingling Fu
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- School of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Yuan Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- School of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Sufang Zhao
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- School of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Zhigang Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- School of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Runliang Zhu
- Guangzhou Institute of Geochemistry
- Chinese Academy of Sciences
- Guangzhou 510640
- China
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30
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Frindy S, El Kadib A, Lahcini M, Primo A, García H. Copper nanoparticles supported on graphene as an efficient catalyst for A3coupling of benzaldehydes. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01414j] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cu nanoparticles (NPs) supported on graphene (G) obtained by pyrolysis of alginate is a highly active catalyst for the A3coupling of aldehydes, secondary amines and terminal acetylenes.
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Affiliation(s)
- Sana Frindy
- Instituto de Tecnología Química (CSIC-UPV) and Departamento de Química (UPV)
- 46022 Valencia
- Spain
- Laboratory of Organometallic and Macromolecular Chemistry-Composites Materials
- Faculty of Sciences and Technologies
| | - Abdelkrim El Kadib
- Euromed Research Institute
- Engineering Division
- Euro-Mediterranean University of Fes (UEMF)
- 30070 Fès
- Morocco
| | - Mohamed Lahcini
- Laboratory of Organometallic and Macromolecular Chemistry-Composites Materials
- Faculty of Sciences and Technologies
- Cadi Ayyad University
- 40000 Marrakech
- Morocco
| | - Ana Primo
- Instituto de Tecnología Química (CSIC-UPV) and Departamento de Química (UPV)
- 46022 Valencia
- Spain
| | - Hermenegildo García
- Instituto de Tecnología Química (CSIC-UPV) and Departamento de Química (UPV)
- 46022 Valencia
- Spain
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31
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