1
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Potbhare AK, Aziz SKT, Ayyub MM, Kahate A, Madankar R, Wankar S, Dutta A, Abdala A, Mohmood SH, Adhikari R, Chaudhary RG. Bioinspired graphene-based metal oxide nanocomposites for photocatalytic and electrochemical performances: an updated review. NANOSCALE ADVANCES 2024; 6:2539-2568. [PMID: 38752147 PMCID: PMC11093270 DOI: 10.1039/d3na01071f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 04/04/2024] [Indexed: 05/18/2024]
Abstract
Considering the rapidly increasing population, the development of new resources, skills, and devices that can provide safe potable water and clean energy remains one of the vital research topics for the scientific community. Owing to this, scientific community discovered such material for tackle this issue of environment benign, the new materials with graphene functionalized derivatives show significant advantages for application in multifunctional catalysis and energy storage systems. Herein, we highlight the recent methods reported for the preparation of graphene-based materials by focusing on the following aspects: (i) transformation of graphite/graphite oxide into graphene/graphene oxide via exfoliation and reduction; (ii) bioinspired fabrication or modification of graphene with various metal oxides and its applications in photocatalysis and storage systems. The kinetics of photocatalysis and the effects of different parameters (such as photocatalyst dose and charge-carrier scavengers) for the optimization of the degradation efficiency of organic dyes, phenol compounds, antibiotics, and pharmaceutical drugs are discussed. Further, we present a brief introduction on different graphene-based metal oxides and a systematic survey of the recently published research literature on electrode materials for lithium-ion batteries (LIBs), supercapacitors, and fuel cells. Subsequently, the power density, stability, pseudocapacitance charge/discharge process, capacity and electrochemical reaction mechanisms of intercalation, and conversion- and alloying-type anode materials are summarized in detail. Furthermore, we thoroughly distinguish the intrinsic differences among underpotential deposition, intercalation, and conventional pseudocapacitance of electrode materials. This review offers a meaningful reference for the construction and fabrication of graphene-based metal oxides as effective photocatalysts for photodegradation study and high-performance optimization of anode materials for LIBs, supercapacitors, and fuel cells.
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Affiliation(s)
- Ajay K Potbhare
- Post Graduate Department of Chemistry, Seth Kesarimal Porwal College of Arts and Science and Commerce Kamptee-441001 India
| | - S K Tarik Aziz
- Chemistry Department, Indian Institute of Technology, Bombay Powai 400076 India
| | - Mohd Monis Ayyub
- New Chemistry Unit, International Centre for Materials Science and Sheikh Saqr Laboratory, Jawaharlal Nehru Centre for Advanced Scientific Research Bangalore India
| | - Aniket Kahate
- Post Graduate Department of Chemistry, Seth Kesarimal Porwal College of Arts and Science and Commerce Kamptee-441001 India
| | - Rohit Madankar
- Post Graduate Department of Chemistry, Seth Kesarimal Porwal College of Arts and Science and Commerce Kamptee-441001 India
| | - Sneha Wankar
- Post Graduate Teaching Department of Chemistry, Gondwana University Gadchiroli 442605 India
| | - Arnab Dutta
- Chemistry Department, Indian Institute of Technology, Bombay Powai 400076 India
| | - Ahmed Abdala
- Chemical Engineering Program, Texas A&M University at Qatar POB 23784 Doha Qatar
| | - Sami H Mohmood
- Department of Physics, The University of Jordan Amman 11942 Jordan
| | - Rameshwar Adhikari
- Central Department of Chemistry and Research Centre for Applied Science and Technology (RECAST), Tribhuvan University Kathmandu Nepal
| | - Ratiram G Chaudhary
- Post Graduate Department of Chemistry, Seth Kesarimal Porwal College of Arts and Science and Commerce Kamptee-441001 India
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2
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Kanth Kadiyala N, Mandal BK, Kumar Reddy LV, Barnes CHW, De Los Santos Valladares L, Maddinedi SB, Sen D. Biofabricated Palladium Nanoparticle-Decorated Reduced Graphene Oxide Nanocomposite Using the Punica granatum (Pomegranate) Peel Extract: Investigation of Potent In Vivo Hepatoprotective Activity against Acetaminophen-Induced Liver Injury in Wistar Albino Rats. ACS OMEGA 2023; 8:24524-24543. [PMID: 37457483 PMCID: PMC10339435 DOI: 10.1021/acsomega.3c02643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 06/15/2023] [Indexed: 07/18/2023]
Abstract
Acute acetaminophen (APAP) toxicity is a predominant clinical problem, which causes serious liver injury in both humans and experimental animals. This study presents the histological and biochemical factor and antioxidant enzyme level changes induced by an acute acetaminophen overdose in Wistar albino rat livers to elucidate the effective hepatoprotective potential of biofabricated palladium nanoparticle-decorated reduced graphene oxide nanocomposites (rGO/PdNPs-NC) compared to silymarin. After detailed characterization of the hepatoprotective potential of the synthesized rGO/PdNPs-NC, the rats were divided into eight groups (n = 6): control group (normal saline, 1 mL/kg b.w.), silymarin, Punica granatum (pomegranate) peel extract, PdNPs, reduced graphene oxide (rGO-PG), and reduced graphene oxide palladium nanocomposites (rGO/PdNPs-NC, low and high doses) for 7 successive days. The acetaminophen (APAP)-treated group was administered a single dose of acetaminophen (2 g/kg b.w.) on the 8th day. The histopathological results showed that the acetaminophen overdose group exhibited massive intrahepatic hemorrhagic necrosis around the centrilobular region with hepatocytes with vacuolization and swollen cytoplasm found in the liver architecture. This hepatopotential was further assessed by various biochemical parameters such as SGOT, SGPT, ALB, ALP, LDH, direct bilirubin, total bilirubin, and total protein. Also, the antioxidant parameters such as SOD, CAT, MDA, GSH, GRD, and GST were assayed. Rats of groups 7 and 8 showed a significant decrease in SGOT, SGPT, ALP, LDH, direct bilirubin, and total bilirubin (p < 0.001), while a significant increase in the final total protein and ALB as compared to group 2 rats (p < 0.001) was observed. The antioxidant parameters exhibited that rats of groups 7 and 8 showed a significant (p < 0.001) increase in the level of SOD, CAT, GSH, GRD, and GST without affecting the MDA as compared to group 2 rats. Also, the hepatoprotective potential of rGO/PdNPs-NC (low and high doses) was comparable to that of the standard reference drug silymarin. The present study reveals that the rGO/PdNPs-NC possesses significant hepatoprotective activity and acts as an effective and promising curative agent against acetaminophen-induced hepatotoxicity.
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Affiliation(s)
- Nalinee Kanth Kadiyala
- Trace
Elements Speciation Research Laboratory, Department of Chemistry,
School of Advanced Sciences, Vellore Institute
of Technology (VIT), Vellore 632014, India
| | - Badal Kumar Mandal
- Trace
Elements Speciation Research Laboratory, Department of Chemistry,
School of Advanced Sciences, Vellore Institute
of Technology (VIT), Vellore 632014, India
| | - L. Vinod Kumar Reddy
- Cellular
and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular
and Molecular Theranostics, Vellore Institute
of Technology (VIT), Vellore 632014, India
| | - Crispin H. W. Barnes
- Cavendish
Laboratory, Department of Physics, University
of Cambridge, Cambridge CB3 0HE, United
Kingdom
| | - Luis De Los Santos Valladares
- Cavendish
Laboratory, Department of Physics, University
of Cambridge, Cambridge CB3 0HE, United
Kingdom
- Laboratorio
de Cerámicos y Nanomateriales, Facultad de Ciencias Físicas, Universidad Nacional Mayor de San Marcos, Ap. Postal 14-0149 Lima, Peru
| | - Sireesh Babu Maddinedi
- Trace
Elements Speciation Research Laboratory, Department of Chemistry,
School of Advanced Sciences, Vellore Institute
of Technology (VIT), Vellore 632014, India
| | - Dwaipayan Sen
- Cellular
and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular
and Molecular Theranostics, Vellore Institute
of Technology (VIT), Vellore 632014, India
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3
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Shaheen S, Saeed Z, Ahmad A, Pervaiz M, Younas U, Mahmood Khan RR, Luque R, Rajendran S. Green synthesis of graphene-based metal nanocomposite for electro and photocatalytic activity; recent advancement and future prospective. CHEMOSPHERE 2023; 311:136982. [PMID: 36309056 DOI: 10.1016/j.chemosphere.2022.136982] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 09/10/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
The presence of pollutants in waste water is a demanding problem for human health. Investigations have been allocated to study the adsorptive behavior of graphene-based materials to remove pollutants from wastewater. Graphene (GO) due to its hydrophilicity, high surface area, and oxygenated functional groups, is an effective adsorbent for the removal of dyes and heavy metals from water. The disclosure of green synthesis opened the gateway for the economic productive methods. This article reveals the fabrication of graphene-based composite from aloe vera extract using a green method. The proposed mechanism of GO reduction via plant extract has also been mentioned in this work. The mechanism associated with the removal of dyes and heavy metals by graphene-based adsorbents and absorptive capacities of heavy metals has been discussed in detail. The toxicity of heavy metals has also been mentioned here. The Polyaromatic resonating system of GO develops significant π-π interactions with dyes whose base form comprises principally oxygenated functional groups. This review article illustrates a literature survey by classifying graphene-based composite with a global market value from 2010 to 2025 and also depicts a comparative study between green and chemical reduction methods. It presents state of art for the fabrication of GO with novel adsorbents such as metal, polymer, metal oxide and elastomers-based nanocomposites for the removal of pollutants. The current progress in the applications of graphene-based composites in antimicrobial, anticancer, drug delivery, and removal of dyes with photocatalytic efficacy of 73% is explored in this work. It gives a coherent overview of the green synthesis of graphene-based composite, various prospective for the fabrication of graphene, and their biotoxicity.
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Affiliation(s)
- Shumila Shaheen
- Department of Chemistry, Government College University, Lahore, Pakistan
| | - Zohaib Saeed
- Department of Chemistry, Government College University, Lahore, Pakistan
| | - Awais Ahmad
- Departmento de Quimica Organicia, Universitidad de Cordoba, Edificio Marie Curie (C-3) Ctra Nnal IV-A ,km 396, E14104, Cordoba, Spain
| | - Muhammad Pervaiz
- Department of Chemistry, Government College University, Lahore, Pakistan.
| | - Umer Younas
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | | | - Rafael Luque
- Departmento de Quimica Organicia, Universitidad de Cordoba, Edificio Marie Curie (C-3) Ctra Nnal IV-A ,km 396, E14104, Cordoba, Spain; Peoples Friendship University of Russia (RUDN University), 6 Miklukho Maklaya str., 117198, Moscow, Russian Federation.
| | - Saravanan Rajendran
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, 1775, Arica, Chile.
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Zhu S, Li Z, Ren R, Zhao W, Li T, Liu M, Wu Y. Pd/Cu
2
O/CuO as Active Sites on the Cyclometalated Pd(II)/Cu(II) Nanosheet: Active Centre Formation, Synergistic and Catalytic Mechanism. ChemistrySelect 2022. [DOI: 10.1002/slct.202200340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shuiqing Zhu
- College of Chemistry Zhengzhou University, Kexuedadao 100 Zhengzhou 450001 P. R. China
| | - Zihan Li
- College of Chemistry Zhengzhou University, Kexuedadao 100 Zhengzhou 450001 P. R. China
| | - Ruirui Ren
- College of Chemistry Zhengzhou University, Kexuedadao 100 Zhengzhou 450001 P. R. China
| | - Wuduo Zhao
- College of Chemistry Zhengzhou University, Kexuedadao 100 Zhengzhou 450001 P. R. China
| | - Tiesheng Li
- College of Chemistry Zhengzhou University, Kexuedadao 100 Zhengzhou 450001 P. R. China
| | - Minghua Liu
- Henan Institute of Advanced Technology Zhengzhou University, Kexuedadao 100 Zhengzhou 450001, Henan Province P.R. China
- Beijing National Laboratory for Molecular Science Institute of Chemistry Chinese Academy of Sciences, Zhongguancun North First Street 2 Beijing 100190 P. R China
| | - Yangjie Wu
- College of Chemistry Zhengzhou University, Kexuedadao 100 Zhengzhou 450001 P. R. China
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5
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Abd-elnaby AE, Shoueir KR, Wazeer W, Kashyout AEHB, El-Kemary M. Synthesis of binary nanohybrid-based polygonal Pd nanoparticles for proficient photoelectrochemical oxidation of methanol and urea. JOURNAL OF MATERIALS SCIENCE: MATERIALS IN ELECTRONICS 2022; 33:13255-13270. [DOI: 10.1007/s10854-022-08266-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 04/13/2022] [Indexed: 09/01/2023]
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6
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Effects of the Crystalline Properties of Hollow Ceria Nanostructures on a CuO-CeO2 catalyst in CO Oxidation. MATERIALS 2022; 15:ma15113859. [PMID: 35683157 PMCID: PMC9181753 DOI: 10.3390/ma15113859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/16/2022] [Accepted: 05/23/2022] [Indexed: 01/25/2023]
Abstract
The development of an efficient and economic catalyst with high catalytic performance is always challenging. In this study, we report the synthesis of hollow CeO2 nanostructures and the crystallinity control of a CeO2 layer used as a support material for a CuO-CeO2 catalyst in CO oxidation. The hollow CeO2 nanostructures were synthesized using a simple hydrothermal method. The crystallinity of the hollow CeO2 shell layer was controlled through thermal treatment at various temperatures. The crystallinity of hollow CeO2 was enhanced by increasing the calcination temperature, but both porosity and surface area decreased, showing an opposite trend to that of crystallinity. The crystallinity of hollow CeO2 significantly influenced both the characteristics and the catalytic performance of the corresponding hollow CuO-CeO2 (H-Cu-CeO2) catalysts. The degree of oxygen vacancy significantly decreased with the calcination temperature. H-Cu-CeO2 (HT), which presented the lowest CeO2 crystallinity, not only had a high degree of oxygen vacancy but also showed well-dispersed CuO species, while H-Cu-CeO2 (800), with well-developed crystallinity, showed low CuO dispersion. The H-Cu-CeO2 (HT) catalyst exhibited significantly enhanced catalytic activity and stability. In this study, we systemically analyzed the characteristics and catalyst performance of hollow CeO2 samples and the corresponding hollow CuO-CeO2 catalysts.
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7
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Adil SF, Ashraf M, Khan M, Assal ME, Shaik MR, Kuniyil M, Al-Warthan A, Siddiqui MRH, Tremel W, Tahir MN. Advances in Graphene/Inorganic Nanoparticle Composites for Catalytic Applications. CHEM REC 2022; 22:e202100274. [PMID: 35103379 DOI: 10.1002/tcr.202100274] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 01/02/2022] [Accepted: 01/04/2022] [Indexed: 12/15/2022]
Abstract
Graphene-based nanocomposites with inorganic (metal and metal oxide) nanoparticles leads to materials with high catalytic activity for a variety of chemical transformations. Graphene and its derivatives such as graphene oxide, highly reduced graphene oxide, or nitrogen-doped graphene are excellent support materials due to their high surface area, their extended π-system, and variable functionalities for effective chemical interactions to fabricate nanocomposites. The ability to fine-tune the surface composition for desired functionalities enhances the versatility of graphene-based nanocomposites in catalysis. This review summarizes the preparation of graphene/inorganic NPs based nanocomposites and their use in catalytic applications. We discuss the large-scale synthesis of graphene-based nanomaterials. We have also highlighted the interfacial electronic communication between graphene/inorganic nanoparticles and other factors resulting in increased catalytic efficiencies.
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Affiliation(s)
- Syed Farooq Adil
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Muhammad Ashraf
- Chemistry Department, King Fahd University of Petroleum & Materials, Dhahran, 31261, Kingdom of Saudi Arabia
| | - Mujeeb Khan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Mohamed E Assal
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Mohammed Rafi Shaik
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Mufsir Kuniyil
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Abdulrahman Al-Warthan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Mohammed Rafiq H Siddiqui
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Wolfgang Tremel
- Department of Chemistry, Johannes Gutenberg-University of Mainz, Duesbergweg 10-14, D-55128, Mainz, Germany
| | - Muhammad Nawaz Tahir
- Chemistry Department, King Fahd University of Petroleum & Materials, Dhahran, 31261, Kingdom of Saudi Arabia.,Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum and & Minerals, Dhahran, 31261, Saudi Arabia
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8
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Govindasamy GA, Mydin RBSMN, Sreekantan S, Harun NH. Compositions and antimicrobial properties of binary ZnO-CuO nanocomposites encapsulated calcium and carbon from Calotropis gigantea targeted for skin pathogens. Sci Rep 2021; 11:99. [PMID: 33420110 PMCID: PMC7794424 DOI: 10.1038/s41598-020-79547-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 11/30/2020] [Indexed: 01/30/2023] Open
Abstract
Calotropis gigantea (C. gigantea) extract with an ecofriendly nanotechnology approach could provide promising antimicrobial activity against skin pathogens. This study investigates the antimicrobial capability of green synthesized binary ZnO-CuO nanocomposites from C. gigantea against non-MDR (Staphylococcus aureus and Escherichia coli) and MDR (Klebsiella pneumoniae, Pseudomonas aeruginosa and methicillin-resistant S. aureus) skin pathogens. Scanning electron microscopy and transmission electron microscopy revealed the size and shape of B3Z1C sample. Results of X-ray powder diffraction, energy-dispersive spectroscopy, FTIR and UV-Vis spectroscopy analyses confirmed the presence of mixed nanoparticles (i.e., zinc oxide, copper oxide, carbon and calcium) and the stabilising phytochemical agents of plant (i.e., phenol and carbonyl). Antimicrobial results showed that carbon and calcium decorated binary ZnO-CuO nanocomposites with compositions of 75 wt% of ZnO and 25 wt% CuO (B3Z1C) was a strong bactericidal agent with the MBC/MIC ratio of ≤ 4 and ≤ 2 for non-MDR and MDR pathogens, respectively. A significant non-MDR zone of inhibitions were observed for BZC by Kirby-Bauer disc-diffusion test. Further time-kill observation revealed significant fourfold reduction in non-MDR pathogen viable count after 12 h study period. Further molecular studies are needed to explain the biocidal mechanism underlying B3Z1C potential.
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Affiliation(s)
- G Ambarasan Govindasamy
- Oncological and Radiological Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, 13200, Kepala Batas, Pulau Pinang, Malaysia
- Ann Joo Integrated Steel Sdn Bhd, Lot 1236, Prai Industrial Estate, 13600, Prai, Penang, Malaysia
| | - Rabiatul Basria S M N Mydin
- Oncological and Radiological Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, 13200, Kepala Batas, Pulau Pinang, Malaysia.
- Department of Biological Sciences, NUS Environmental Research Institute, National University of Singapore, 14 Science Drive 4, Singapore, 117543, Singapore.
| | - Srimala Sreekantan
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus, 14300, Nibong Tebal, Pulau Pinang, Malaysia
| | - Nor Hazliana Harun
- Oncological and Radiological Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, 13200, Kepala Batas, Pulau Pinang, Malaysia
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9
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Siddiqui S, Siddiqui ZN. Synthesis and catalytic evaluation of PVP-CeO 2/rGO as a highly efficient and recyclable heterogeneous catalyst for multicomponent reactions in water. NANOSCALE ADVANCES 2020; 2:4639-4651. [PMID: 36132914 PMCID: PMC9419207 DOI: 10.1039/d0na00491j] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 06/24/2020] [Indexed: 05/24/2023]
Abstract
A highly efficient and eco-friendly route for the reduction of graphene oxide (GO) to reduced graphene oxide (rGO) was developed by using polyvinylpyrrolidone coated CeO2 NPs (PVP-CeO2) as a reducing and stabilizing agent. The resulting carbonaceous material, PVP-CeO2/rGO, was well characterized with different spectroscopic techniques such as Fourier Transform Infrared (FTIR) spectroscopy, Scanning Electron Microscopy (SEM), Energy Dispersive X-ray (EDX), elemental mapping, Transmission Electron Microscopy (TEM), Raman spectroscopy, powder X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), X-ray Photoelectron Spectroscopy (XPS), and Thermal Gravimetric (TG) analyses. The material exhibited high catalytic potential towards multicomponent reactions for the synthesis of biologically relevant benzodiazepine derivatives in aqueous media. The efficiency of the material for the desired reaction was shown in the form of an excellent product yield (96-98%) and a very short reaction time period (7-10 min). The use of water as solvent and recyclability of the catalyst made the present protocol acceptable from a green perspective.
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Affiliation(s)
- Shaheen Siddiqui
- Department of Chemistry, Aligarh Muslim University Aligarh 202002 Uttar Pradesh India
| | - Zeba N Siddiqui
- Department of Chemistry, Aligarh Muslim University Aligarh 202002 Uttar Pradesh India
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10
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Khan M, Shaik MR, Adil SF, Kuniyil M, Ashraf M, Frerichs H, Sarif MA, Siddiqui MRH, Al-Warthan A, Labis JP, Islam MS, Tremel W, Tahir MN. Facile synthesis of Pd@graphene nanocomposites with enhanced catalytic activity towards Suzuki coupling reaction. Sci Rep 2020; 10:11728. [PMID: 32678111 PMCID: PMC7366662 DOI: 10.1038/s41598-020-68124-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 05/07/2020] [Indexed: 12/02/2022] Open
Abstract
A facile and chemical specific method to synthesize highly reduced graphene oxide (HRG) and Pd (HRG@Pd) nanocomposite is presented. The HRG surfaces are tailored with amine groups using 1-aminopyrene (1-AP) as functionalizing molecules. The aromatic rings of 1-AP sit on the basal planes of HRG through π-π interactions, leaving amino groups outwards (similar like self-assembled monolayer on 2D substrates). The amino groups provide the chemically specific binding sites to the Pd nucleation which subsequently grow into nanoparticles. HRG@Pd nanocomposite demonstrated both uniform distribution of Pd nanoparticles on HRG surface as well as excellent physical stability and dispersibility. The surface functionalization was confirmed using, ultraviolet-visible (UV-Vis), Fourier transform infra-red and Raman spectroscopy. The size and distribution of Pd nanoparticles on the HRG and crystallinity were confirmed using high-resolution transmission electron microscopy and powder X-ray diffraction and X-ray photoelectron spectroscopy. The catalytic efficiency of highly reduced graphene oxide-pyrene-palladium nanocomposite (HRG-Py-Pd) is tested towards the Suzuki coupling reactions of various aryl halides. The kinetics of the catalytic reaction (Suzuki coupling) using HRG-Py-Pd nanocomposite was monitored using gas chromatography (GC).
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Affiliation(s)
- Mujeeb Khan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia.
| | - Mohammed Rafi Shaik
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Syed Farooq Adil
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Mufsir Kuniyil
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
- Department of Chemistry, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur, Andhra Pradesh, 522502, India
| | - Muhammad Ashraf
- Department of Chemistry, King Fahd University of Petroleum and Minerals, P.O. Box 5048, Dhahran, 31261, Kingdom of Saudi Arabia
| | - Hajo Frerichs
- Institut für Anorganische Chemie Und Analytische Chemie, Johannes Gutenberg-Universität, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Massih Ahmad Sarif
- Institut für Anorganische Chemie Und Analytische Chemie, Johannes Gutenberg-Universität, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Mohammed Rafiq H Siddiqui
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Abdulrahman Al-Warthan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Joselito P Labis
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Mohammad Shahidul Islam
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Wolfgang Tremel
- Institut für Anorganische Chemie Und Analytische Chemie, Johannes Gutenberg-Universität, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Muhammad Nawaz Tahir
- Department of Chemistry, King Fahd University of Petroleum and Minerals, P.O. Box 5048, Dhahran, 31261, Kingdom of Saudi Arabia.
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11
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Sultana S, Mech SD, Hussain FL, Pahari P, Borah G, Gogoi PK. Green synthesis of graphene oxide (GO)-anchored Pd/Cu bimetallic nanoparticles using Ocimum sanctum as bio-reductant: an efficient heterogeneous catalyst for the Sonogashira cross-coupling reaction. RSC Adv 2020; 10:23108-23120. [PMID: 35520350 PMCID: PMC9054927 DOI: 10.1039/d0ra01189d] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 06/11/2020] [Indexed: 12/27/2022] Open
Abstract
To explore the synergism between two metal centers we have synthesized graphene oxide (GO) supported Pd/Cu@GO, Pd@GO and Cu@GO nanoparticles through bio-reduction of Pd(NO3)2 and CuSO4·5H2O using Tulsi (Ocimum sanctum) leaf extract as the reducing and stabilizing agent. The graphene oxide (GO) was obtained by oxidation of graphite following a simplified Hummer's method. The as-prepared nanomaterials have been extensively characterized by FTIR, powder X-ray diffraction (PXRD), HRTEM, TEM-EDS, XPS, ICP-AES and BET surface area measurement techniques. The morphological study of Pd/Cu@GO revealed that crystalline bimetallic alloy type particles were dispersed on the GO layer. The activity of Pd@GO, Cu@GO and Pd/Cu@GO as catalysts for the Sonogashira cross-coupling reaction have been investigated and it was found that the Pd/Cu@GO nanostructure showed highly superior catalytic activity over its monometallic counterparts, substantiating the cooperative influence of the two metals. The inter-atom Pd/Cu transmetalation between surfaces was thought to be responsible for its synergistic activity. The catalyst showed higher selectivity towards coupling of aryl iodides with both aliphatic and aryl alkynes resulting in moderate to excellent isolated yield of the desired products (45-99%). The products have been characterized by GC-MS and 1H-NMR spectroscopic techniques and compared with authentic samples. The Pd/Cu@GO catalyst could be easily isolated from the reaction products and reused for up to at least ten successive runs effectively.
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Affiliation(s)
- Samim Sultana
- Department of Chemistry, Dibrugarh University Dibrugarh-786004 Assam India
| | - Swapna Devi Mech
- Department of Chemistry, Dibrugarh University Dibrugarh-786004 Assam India
| | - Farhaz Liaquat Hussain
- Applied Organic Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology Jorhat-785006 Assam India
| | - Pallab Pahari
- Applied Organic Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology Jorhat-785006 Assam India
| | - Geetika Borah
- Department of Chemistry, Dibrugarh University Dibrugarh-786004 Assam India
| | - Pradip K Gogoi
- Department of Chemistry, Dibrugarh University Dibrugarh-786004 Assam India
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12
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Green Synthesis of ZnO Nanostructures Using Salvadora Persica Leaf Extract: Applications for Photocatalytic Degradation of Methylene Blue Dye. CRYSTALS 2020. [DOI: 10.3390/cryst10060441] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Various ZnO nanomaterials such as nanorods, nanoparticles, and nanosheets were synthesized using Salvadora persica leaf extract via the sol–gel method. The prepared nanomaterials possess a large number of nanocavities. The synthesized nanomaterials were characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), UV-visible diffuse reflectance studies (UV-DRS), scanning electron microscopy (SEM), and high resolution transmission electron microscopy (HT-TEM), and these nanomaterials were used to test photocatalytic applications for the degradation of highly hazardous methylene blue dye. The degradation efficiency was higher for materials with nanorods and nanosheets with nanocavities; this was due to the presence of the nanocavities, which made the catalyst more sensitive to light absorption. This method offers a green synthesis of different nanomaterials in bulk quantity at low cost.
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Kasturi S, Torati SR, Eom YJ, Ahmad S, Lee BJ, Yu JS, Kim C. Real-time monitored photocatalytic activity and electrochemical performance of an rGO/Pt nanocomposite synthesized via a green approach. RSC Adv 2020; 10:13722-13731. [PMID: 35492974 PMCID: PMC9051565 DOI: 10.1039/d0ra00541j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 03/06/2020] [Indexed: 01/14/2023] Open
Abstract
Herein, we have reported the real-time photodegradation of methylene blue (MB), an organic pollutant, in the presence of sunlight at an ambient temperature using a platinum-decorated reduced graphene oxide (rGO/Pt) nanocomposite. The photocatalyst was prepared via a simple, one-pot and green approach with the simultaneous reduction of GO and Pt using aqueous honey as a reducing agent. Moreover, the honey not only simultaneously reduced Pt ions and GO but also played a key role in the growth and dispersion of Pt nanoparticles on the surface of rGO. Various rGO/Pt nanocomposites with different percentages of Pt nanoparticles loaded on rGO were obtained by tuning the concentration of the Pt source. The high percentage of Pt nanoparticles with an average size of 2.5 nm dispersed on rGO has shown excellent electrochemical performance. The photocatalytic activity of the rGO/Pt composite was enhanced by increasing the weight percent of the Pt particles on rGO, which led to the formation of a highly efficient photocatalyst. The optimized photocatalyst exhibited remarkable photocatalytic activity and degraded 98% MB in 180 minutes; thus, it can be used for industrial and environmental applications.
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Affiliation(s)
- Satish Kasturi
- Department of Emerging Materials Science, DGIST Daegu-42988 Republic of Korea +82-53-785-6509 +82-53-785-6516
| | - Sri Ramulu Torati
- Department of Emerging Materials Science, DGIST Daegu-42988 Republic of Korea +82-53-785-6509 +82-53-785-6516
| | - Yun Ji Eom
- Department of Emerging Materials Science, DGIST Daegu-42988 Republic of Korea +82-53-785-6509 +82-53-785-6516
| | - Syafiq Ahmad
- Department of Emerging Materials Science, DGIST Daegu-42988 Republic of Korea +82-53-785-6509 +82-53-785-6516
| | - Byong-June Lee
- Department of Energy Science and Engineering, DGIST Daegu-42988 Republic of Korea
| | - Jong-Sung Yu
- Department of Energy Science and Engineering, DGIST Daegu-42988 Republic of Korea
| | - CheolGi Kim
- Department of Emerging Materials Science, DGIST Daegu-42988 Republic of Korea +82-53-785-6509 +82-53-785-6516
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Eco-Friendly Mechanochemical Preparation of Ag2O–MnO2/Graphene Oxide Nanocomposite: An Efficient and Reusable Catalyst for the Base-Free, Aerial Oxidation of Alcohols. Catalysts 2020. [DOI: 10.3390/catal10030281] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Recently, the development of eco-friendly mechanochemical approaches for the preparation of novel catalysts with enhanced activity and selectivity has gained considerable attention. Herein, we developed a rapid and solvent-less mechanochemical method for the preparation of mixed metal oxide (Ag2O–MnO2) decorated graphene oxide (GRO)-based nanocomposites (Ag2O–MnO2/(X wt.%)GRO), as the Ag2O–MnO2/(X wt.%)GRO nanocomposite was fabricated by the physical grinding of freshly prepared GRO and pre-annealed (300 °C) mixed metal oxide nanoparticles (NPs) (Ag2O–MnO2) using an eco-friendly milling procedure. The as-prepared nanocatalysts were characterized by using various techniques. Furthermore, the nanocomposites were applied as a heterogeneous catalyst for the oxidation of alcohol by employing gaseous O2 as an eco-friendly oxidant under base-free conditions. The mechanochemically obtained GRO-based composite exhibited noticeable enhancement in the surface area and catalytic performance compared to the pristine Ag2O–MnO2. The results revealed that (1%)Ag2O–MnO2/(5 wt.%)GRO catalyst exhibited higher specific performance (13.3 mmol·g−1·h−1) with a 100% conversion of benzyl alcohol (BnOH) and >99% selectivity towards benzaldehyde (BnH) within 30 min. The enhancement of the activity and selectivity of GRO-based nanocatalyst was attributed to the presence of various oxygen-containing functional groups, a large number of defects, and a high specific surface area of GRO. In addition, the as-prepared nanocatalyst also demonstrated excellent catalytic activity towards the conversion of a variety of other alcohols to respective carbonyls under optimal conditions. Besides, the catalyst ((1%)Ag2O–MnO2/(5 wt.%)GRO) could be efficiently recycled six times with no noticeable loss in its performance and selectivity.
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15
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Nasrollahzadeh M, Sajjadi M, Dadashi J, Ghafuri H. Pd-based nanoparticles: Plant-assisted biosynthesis, characterization, mechanism, stability, catalytic and antimicrobial activities. Adv Colloid Interface Sci 2020; 276:102103. [PMID: 31978638 DOI: 10.1016/j.cis.2020.102103] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 12/09/2019] [Accepted: 01/06/2020] [Indexed: 12/18/2022]
Abstract
Among various metal nanoparticles, palladium nanoparticles (Pd NPs) are one of the most important and fascinating nanomaterials. An important concern about the preparation of Pd NPs is the formation of toxic by-products, dangerous wastes and harmful pollutants. The best solution to exclude and/or minimize these toxic substances is plant mediated biosynthesis of Pd NPs. Biogenic Pd-based NPs from plant extracts have been identified as valuable nanocatalysts in various catalytic reactions because of their excellent activities and selectivity. They have captured the attention of researchers owing to their economical, sustainable, green and eco-friendly nature. This review attempts to cover the recent progresses in the fabrication, characterization and broad applications of biogenic Pd NPs in environmental and catalytic systems. In addition, the stability of biosynthesized Pd NPs and mechanism of their formation are investigated.
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Keshipour S, Al‐Azmi A. Synthesis and catalytic application of Pd/PdO/Fe
3
O
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@polymer‐like graphene quantum dots. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5311] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sajjad Keshipour
- Department of Nanochemistry, Nanotechnology Research CenterUrmia University Urmia Iran
| | - Amal Al‐Azmi
- Chemistry DepartmentKuwait University P. O. Box 5969 Safat 13060 Kuwait
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17
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Mogha NK, Gosain S, Masram DT. Lanthanum oxide nanoparticles immobilized reduced graphene oxide polymer brush nanohybrid for environmental vitiation of organic dyes. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2017.11.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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18
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Dhanavel S, Praveena P, Narayanan V, Stephen A. Chitosan/reduced graphene oxide/Pd nanocomposites for co-delivery of 5-fluorouracil and curcumin towards HT-29 colon cancer cells. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-03039-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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19
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Kharissova OV, Kharisov BI, Oliva González CM, Méndez YP, López I. Greener synthesis of chemical compounds and materials. ROYAL SOCIETY OPEN SCIENCE 2019; 6:191378. [PMID: 31827868 PMCID: PMC6894553 DOI: 10.1098/rsos.191378] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 10/04/2019] [Indexed: 05/03/2023]
Abstract
Modern trends in the greener synthesis and fabrication of inorganic, organic and coordination compounds, materials, nanomaterials, hybrids and nanocomposites are discussed. Green chemistry deals with synthesis procedures according to its classic 12 principles, contributing to the sustainability of chemical processes, energy savings, lesser toxicity of reagents and final products, lesser damage to the environment and human health, decreasing the risk of global overheating, and more rational use of natural resources and agricultural wastes. Greener techniques have been applied to synthesize both well-known chemical compounds by more sustainable routes and completely new materials. A range of nanosized materials and composites can be produced by greener routes, including nanoparticles of metals, non-metals, their oxides and salts, aerogels or quantum dots. At the same time, such classic materials as cement, ceramics, adsorbents, polymers, bioplastics and biocomposites can be improved or obtained by cleaner processes. Several non-contaminating physical methods, such as microwave heating, ultrasound-assisted and hydrothermal processes or ball milling, frequently in combination with the use of natural precursors, are of major importance in the greener synthesis, as well as solventless and biosynthesis techniques. Non-hazardous solvents including ionic liquids, use of plant extracts, fungi, yeasts, bacteria and viruses are also discussed in relation with materials fabrication. Availability, necessity and profitability of scaling up green processes are discussed.
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Affiliation(s)
- Oxana V. Kharissova
- Facultad de Ciencias Físico-Matemáticas, Universidad Autónoma de Nuevo León, UANL, Avenida Universidad, Ciudad Universitaria, 66455 San Nicolás de los Garza, Nuevo León, Mexico
| | - Boris I. Kharisov
- Facultad de Ciencias Químicas, Laboratorio de Materiales I, Universidad Autónoma de Nuevo León, UANL, Avenida Universidad, Ciudad Universitaria, 66455 San Nicolás de los Garza, Nuevo León, Mexico
| | - César Máximo Oliva González
- Facultad de Ciencias Químicas, Laboratorio de Materiales I, Universidad Autónoma de Nuevo León, UANL, Avenida Universidad, Ciudad Universitaria, 66455 San Nicolás de los Garza, Nuevo León, Mexico
| | - Yolanda Peña Méndez
- Facultad de Ciencias Químicas, Laboratorio de Materiales I, Universidad Autónoma de Nuevo León, UANL, Avenida Universidad, Ciudad Universitaria, 66455 San Nicolás de los Garza, Nuevo León, Mexico
| | - Israel López
- Facultad de Ciencias Químicas, Laboratorio de Materiales I, Universidad Autónoma de Nuevo León, UANL, Avenida Universidad, Ciudad Universitaria, 66455 San Nicolás de los Garza, Nuevo León, Mexico
- Centro de Investigación en Biotecnología y Nanotecnología (CIBYN), Laboratorio de Nanociencias y Nanotecnología, Universidad Autónoma de Nuevo León, UANL, Autopista al Aeropuerto Internacional Mariano Escobedo Km. 10, Parque de Investigación e Innovación Tecnológica (PIIT), 66629 Apodaca, Nuevo León, Mexico
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20
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Enhancing Activity of Pd-Based/rGO Catalysts by Al-Si-Na Addition in Ethanol Electrooxidation in Alkaline Medium. J CHEM-NY 2019. [DOI: 10.1155/2019/6842849] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The article presents modified Pd-based catalysts supported on reduced graphene oxide (rGO), used in the electrooxidation reaction of ethanol in alkaline medium. When NaBH4 reducing agent was used, the random presence of Na was found out. According to this result, Na was used as a promoter of Pd-based catalyst. Consequently, the Al-Si-Na addition not only assisted active phase Pd nanoparticles to disperse homogenously on graphene surport, but also contributed to increase catalytic activity in the reaction. This value, 16138 mA·mg−1Pd, is about 1.5 times higer than that of the catalyst modified by Al-Si. Moreover, the stability of the catalyst is enhanced more. The electrochemical stability of PASGN.N catalyst was relatively good: after 500 scanning cycles, the current density diminished 32% compared with the highest peak current density of the 15th cycle, which was chosen as a reference. These significant improvement results in electrooxidation of ethanol have opened up the high potential application of these catalysts in direct-ethanol fuel cell.
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Ahmadi R, Ghanbarzadeh B, Ayaseh A, Kafil HS, Özyurt H, Katourani A, Ostadrahimi A. The antimicrobial bio-nanocomposite containing non-hydrolyzed cellulose nanofiber (CNF) and Miswak (Salvadora persica L.) extract. Carbohydr Polym 2019; 214:15-25. [DOI: 10.1016/j.carbpol.2019.03.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 02/28/2019] [Accepted: 03/03/2019] [Indexed: 01/10/2023]
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22
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Current Review on Synthesis, Composites and Multifunctional Properties of Graphene. Top Curr Chem (Cham) 2019; 377:10. [DOI: 10.1007/s41061-019-0235-6] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Accepted: 02/22/2019] [Indexed: 12/30/2022]
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Zakeri M, Abouzari-lotf E, Miyake M, Mehdipour-Ataei S, Shameli K. Phosphoric acid functionalized graphene oxide: A highly dispersible carbon-based nanocatalyst for the green synthesis of bio-active pyrazoles. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2017.11.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Hariram M, Vivekanandhan S. Phytochemical Process for the Functionalization of Materials with Metal Nanoparticles: Current Trends and Future Perspectives. ChemistrySelect 2018. [DOI: 10.1002/slct.201802748] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Muruganandham Hariram
- Sustainable Materials and Nanotechnology Lab (SMNL); Department of Physics, V.H.N.S.N. College, Virudhunagar-; 626 001, Tamil Nadu India
- Department of Physics; Bharathidasan University; Tiruchirappalli-620 024, Tamil Nadu India
| | - Singaravelu Vivekanandhan
- Sustainable Materials and Nanotechnology Lab (SMNL); Department of Physics, V.H.N.S.N. College, Virudhunagar-; 626 001, Tamil Nadu India
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Hydrogel-Graphene Oxide Nanocomposites as Electrochemical Platform to Simultaneously Determine Dopamine in Presence of Ascorbic Acid Using an Unmodified Glassy Carbon Electrode. JOURNAL OF COMPOSITES SCIENCE 2018. [DOI: 10.3390/jcs3010001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The detection of dopamine, an important neurotransmitter in the central nervous system, is relevant because low levels of dopamine can cause brain disorders. Here, a novel electrochemical platform made of a hydrogel–graphene oxide nanocomposite was employed to electrochemically determine simultaneously dopamine (DA) and ascorbic acid (AA). Unlike previous work, where the base electrode is modified, the active material (graphene oxide, GO) was dispersed in the hydrogel matrix, making an active nanocomposite where the electrochemical detection occurs. The GO, hydrogel and nanocomposite synthesis is described. Dynamic Light Scattering, UV-visible and FTIR spectroscopies showed that the synthesized GO nanoparticles present 480 nm of diagonal size and a few sheets in height. Moreover, the polymer swelling, the adsorption capacity and the release kinetic of DA and AA were evaluated. The nanocomposite showed lower swelling capacity, higher DA partition coefficient and faster DA release rate than in the hydrogel. The electrochemical measurement proved that both materials can be employed to determine DA and AA. Additionally, the nanocomposite platform allowed the simultaneous determination of both molecules showing two well separated anodic peaks. This result demonstrates the importance of the incorporation of the nanomaterial inside of the hydrogel and proves that the nanocomposite can be used as a platform in an electrochemical device to determinate DA using an unmodified glassy carbon electrode.
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Abstract
In the last decades, the selective liquid phase oxidation of alcohols to the corresponding carbonyl compounds has been a subject of growing interest. Research has focused on green methods that use “clean” oxidants such as O2 in combination with supported metal nanoparticles as the catalyst. Among the alcohols, benzyl alcohol is one of the most studied substrates. Indeed, benzyl alcohol can be converted to benzaldehyde, largely for use in the pharmaceutical and agricultural industries. This conversion serves as model reaction in testing new potential catalysts, that can then be applied to other systems. Pd based catalysts have been extensively studied as active catalytic metals for alcohol oxidation for their high activity and selectivity to the corresponding aldehyde. Several catalytic materials obtained by careful control of the morphology of Pd nanoparticles, (including bimetallic systems) and by tuning the support properties have been developed. Moreover, reaction conditions, including solvent, temperature, pressure and alcohol concentration have been investigated to tune the selectivity to the desired products. Different reaction mechanisms and microkinetic models have been proposed. The aim of this review is to provide a critical description of the recent advances on Pd catalyzed benzyl alcohol oxidation.
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Mukheem A, Muthoosamy K, Manickam S, Sudesh K, Shahabuddin S, Saidur R, Akbar N, Sridewi N. Fabrication and Characterization of an Electrospun PHA/Graphene Silver Nanocomposite Scaffold for Antibacterial Applications. MATERIALS 2018; 11:ma11091673. [PMID: 30201852 PMCID: PMC6163631 DOI: 10.3390/ma11091673] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 08/21/2018] [Accepted: 08/23/2018] [Indexed: 11/16/2022]
Abstract
Many wounds are unresponsive to currently available treatment techniques and therefore there is an immense need to explore suitable materials, including biomaterials, which could be considered as the crucial factor to accelerate the healing cascade. In this study, we fabricated polyhydroxyalkanoate-based antibacterial mats via an electrospinning technique. One-pot green synthesized graphene-decorated silver nanoparticles (GAg) were incorporated into the fibres of poly-3 hydroxybutarate-co-12 mol.% hydroxyhexanoate (P3HB-co-12 mol.% HHx), a co-polymer of the polyhydroxyalkanoate (PHA) family which is highly biocompatible, biodegradable, and flexible in nature. The synthesized PHA/GAg biomaterial has been characterized by field emission scanning electron microscopy (FESEM), elemental mapping, thermogravimetric analysis (TGA), UV-visible spectroscopy (UV-vis), and Fourier transform infrared spectroscopy (FTIR). An in vitro antibacterial analysis was performed to investigate the efficacy of PHA/GAg against gram-positive Staphylococcus aureus (S. aureus) strain 12,600 ATCC and gram-negative Escherichia coli (E. coli) strain 8739 ATCC. The results indicated that the PHA/GAg demonstrated significant reduction of S. aureus and E. coli as compared to bare PHA or PHA- reduced graphene oxide (rGO) in 2 h of time. The p value (p < 0.05) was obtained by using a two-sample t-test distribution.
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Affiliation(s)
- Abdul Mukheem
- Department of Maritime Science and Technology Faculty of Science and Defence Technology, National Defence University of Malaysia, Kuala Lumpur 57000, Malaysia.
| | - Kasturi Muthoosamy
- Department of Chemical and Nano pharmaceutical Process Engineering, Faculty of Engineering, University of Nottingham Malaysia Campus, Semenyih 43500, Malaysia.
| | - Sivakumar Manickam
- Department of Chemical and Nano pharmaceutical Process Engineering, Faculty of Engineering, University of Nottingham Malaysia Campus, Semenyih 43500, Malaysia.
| | - Kumar Sudesh
- Applied Microbiology and Ecobiomaterial Research Laboratory, School of Biological Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia.
| | - Syed Shahabuddin
- Research Centre for Nano-Materials and Energy Technology (RCNMET), School of Science and Technology, Sunway University, Subang Jaya 47500, Malaysia.
| | - Rahman Saidur
- Research Centre for Nano-Materials and Energy Technology (RCNMET), School of Science and Technology, Sunway University, Subang Jaya 47500, Malaysia.
- School of Postgraduate Studies and Research, American University of Ras Al Khaimah, Ras Al Khaimah 31208, UAE.
| | - Noor Akbar
- Department of Biological Sciences, School of Science and Technology, Sunway University, Subang Jaya 47500, Malaysia.
| | - Nanthini Sridewi
- Department of Maritime Science and Technology Faculty of Science and Defence Technology, National Defence University of Malaysia, Kuala Lumpur 57000, Malaysia.
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Ag2O Nanoparticles-Doped Manganese Immobilized on Graphene Nanocomposites for Aerial Oxidation of Secondary Alcohols. METALS 2018. [DOI: 10.3390/met8060468] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Aumeeruddy MZ, Zengin G, Mahomoodally MF. A review of the traditional and modern uses of Salvadora persica L. (Miswak): Toothbrush tree of Prophet Muhammad. JOURNAL OF ETHNOPHARMACOLOGY 2018; 213:409-444. [PMID: 29196134 DOI: 10.1016/j.jep.2017.11.030] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 11/25/2017] [Accepted: 11/26/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Salvadora persica L., also known as Arak (in Arabic) and Peelu (in Urdu), is the most common traditional source of tooth or chewing stick (miswak) highly recommended by Prophet Muhammad. To date, extensive studies have probed primarily into the validation of its traditional uses in oral care. Nonetheless, there is still a dearth of updated compilation and critical analysis of other potential ethnopharmacological properties of S. persica. This review therefore aims to provide an up-to-date detailed structured description of the traditional uses of S. persica and a critical analysis of its modern uses, highlighting its phytochemistry, pharmacological properties, and bioapplications. MATERIALS AND METHODS Various databases (Science Direct, PubMed, Wiley Online Library, and Google Scholar), books, and relevant primary sources were probed, surveyed, analysed, and included in this review. The literature cited in this review dated from 1979 to 2017. RESULTS S. persica was found to possess a plethora of bioactive compounds and broad pharmacological properties, including antimicrobial, antioxidant, enzyme inhibitory activity, antiulcer, anticonvulsant, sedative, analgesic, anti-inflammatory, hypoglycemic, hypolipidemic, antiosteoporosis, and antitumor activities. Studies also revealed the potential use of S. persica as a natural food preservative and a novel functional food ingredient. In addition, improvement in growth and reproductive performances have been observed by the introduction of S. persica in animal feed. Lastly, S. persica has also been used in the green synthesis of nanoparticles showing potential biotechnological applications. CONCLUSION S. persica showed a wide scope of application and its uses have been extended far beyond the initial traditional uses of its roots, stems, and twigs in oral care. We found a number of other ethnopharmacological uses and potential bioapplications of different parts of S. persica that warrants further investigations. Though widely studied using several in vitro and in vivo models, and tested clinically for oral hygiene mainly, several gaps and research priorities have been identified which needs to be addressed in future.
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Affiliation(s)
| | - Gokhan Zengin
- Department of Biology, Science Faculty, Selcuk University, 42250 Konya, Turkey
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Mixed Zinc/Manganese on Highly Reduced Graphene Oxide: A Highly Active Nanocomposite Catalyst for Aerial Oxidation of Benzylic Alcohols. Catalysts 2017. [DOI: 10.3390/catal7120391] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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31
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Plant Extract Mediated Eco-Friendly Synthesis of Pd@Graphene Nanocatalyst: An Efficient and Reusable Catalyst for the Suzuki-Miyaura Coupling. Catalysts 2017. [DOI: 10.3390/catal7010020] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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Assal ME, Shaik MR, Kuniyil M, Khan M, Al-Warthan A, Siddiqui MRH, Khan SMA, Tremel W, Tahir MN, Adil SF. A highly reduced graphene oxide/ZrOx–MnCO3 or –Mn2O3 nanocomposite as an efficient catalyst for selective aerial oxidation of benzylic alcohols. RSC Adv 2017. [DOI: 10.1039/c7ra11569e] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ZrOx(1%)–MnCO3/HRG(1%) based nanocomposites material as an efficient oxidation catalyst.
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Affiliation(s)
- Mohamed E. Assal
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11451
- Kingdom of Saudi Arabia
| | - Mohammed Rafi Shaik
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11451
- Kingdom of Saudi Arabia
| | - Mufsir Kuniyil
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11451
- Kingdom of Saudi Arabia
| | - Mujeeb Khan
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11451
- Kingdom of Saudi Arabia
| | - Abdulrahman Al-Warthan
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11451
- Kingdom of Saudi Arabia
| | | | - Sohail M. A. Khan
- Department of Mechanical and Industrial Engineering
- Ryerson University
- Toronto
- Canada
| | - Wolfgang Tremel
- Institute of Inorganic and Analytical Chemistry
- Johannes Gutenberg-University of Mainz
- Germany
| | - Muhammad Nawaz Tahir
- Institute of Inorganic and Analytical Chemistry
- Johannes Gutenberg-University of Mainz
- Germany
- Chemistry Department
- King Fahd University of Petroleum and Materials
| | - Syed Farooq Adil
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11451
- Kingdom of Saudi Arabia
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