Pub Date : 2023-10-17DOI: 10.1080/14328917.2023.2267362
Ayesha Kausar, Ishaq Ahmad
ABSTRACTThis comprehensive and novel article covers an important category of nanocomposites, i.e. polymer and graphene quantum dots derived nanocomposites. Graphene quantum dots have been found as remarkable zero-dimensional derivative of graphene having size of up to 20 nm. Similar to graphene, graphene quantum dots have been applied as beneficial nano-reinforcement for the polymers. In this context, various conductive polymers (polypyrrole, polyaniline, polythiophene, etc.) and thermoplastic polymers (poly(vinyl alcohol), poly(vinyl fluoride), etc.) have been used as matrices. Inclusion of graphene quantum dots in matrices have revealed superior structure, morphological, electronic, optical, photoluminescence, and several other advantageous physical characteristics. Important application areas of polymer/graphene quantum dots nanomaterials have been observed for solar cells, sensors, supercapacitors, batteries, memory devices, and bioimaging. However, further research efforts have been desirable regarding the graphene quantum dots modification and exploration of new graphene quantum dots derived nanocomposite designs and applied sectors as well as overcoming the related challenges for future progressions in this important category of nanocomposites.KEYWORDS: Graphene quantum dotsconductive polymernanocompositessensorsolar cell Disclosure statementNo potential conflict of interest was reported by the authors.
{"title":"Graphene quantum dots in high performance nanocomposites—design to phantastic progressions","authors":"Ayesha Kausar, Ishaq Ahmad","doi":"10.1080/14328917.2023.2267362","DOIUrl":"https://doi.org/10.1080/14328917.2023.2267362","url":null,"abstract":"ABSTRACTThis comprehensive and novel article covers an important category of nanocomposites, i.e. polymer and graphene quantum dots derived nanocomposites. Graphene quantum dots have been found as remarkable zero-dimensional derivative of graphene having size of up to 20 nm. Similar to graphene, graphene quantum dots have been applied as beneficial nano-reinforcement for the polymers. In this context, various conductive polymers (polypyrrole, polyaniline, polythiophene, etc.) and thermoplastic polymers (poly(vinyl alcohol), poly(vinyl fluoride), etc.) have been used as matrices. Inclusion of graphene quantum dots in matrices have revealed superior structure, morphological, electronic, optical, photoluminescence, and several other advantageous physical characteristics. Important application areas of polymer/graphene quantum dots nanomaterials have been observed for solar cells, sensors, supercapacitors, batteries, memory devices, and bioimaging. However, further research efforts have been desirable regarding the graphene quantum dots modification and exploration of new graphene quantum dots derived nanocomposite designs and applied sectors as well as overcoming the related challenges for future progressions in this important category of nanocomposites.KEYWORDS: Graphene quantum dotsconductive polymernanocompositessensorsolar cell Disclosure statementNo potential conflict of interest was reported by the authors.","PeriodicalId":18235,"journal":{"name":"Materials Research Innovations","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135994263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-04DOI: 10.1080/14328917.2023.2264597
A. Jeshurun, Md. Irfan, B.M. Reddy
ABSTRACTIn the present work, we examined the antibacterial activity of novel silver@cuprous oxide core-shell/hydroxyapatite (Ag@Cu2O/HAp) hetero-nanohybrids against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli bacteria. The hydrothermal technique was used to easily synthesise Ag@Cu2O/HAp core-shell nanohybrid structures. Immobilisation of Ag@Cu2O core shells on HAp nanoparticles was done by controlling the relative concentrations of Ag, Cu2O, and HAp. The Ag@Cu2O/HAp nanohybrids were characterised using XRD, FTIR, Raman, UV-vis, SEM, EDX, TEM, and SAED methods. By observing the growth of S. aureus and E. coli populations in the presence and absence of Ag, Ag@Cu2O, HAp, and Ag@Cu2O/HAp nanoparticles, their antibacterial impact was compared. MIC Alamar Blue assay was performed to study the cytotoxicity of Ag@Cu2O/HAp nanomaterials. In addition, reactive oxygen species (ROS) studies were conducted to understand the type of active species produced under light and dark conditions. The possible photochemical and antibacterial mechanisms of the Ag@Cu2O/HAp nanohybrids against S. aureus and E. coli bacteria were proposed. In addition, the promising antibacterial nature of Ag@Cu2O/HAp materials suggests that they are good candidates for industrial and biomedical applications.KEYWORDS: Ag@Cu2O core shellshydroxyapatitenanohybridshydrothermalantibacterial AcknowledgmentsThe authors thank Department of Materials Science, Central University of Tamil Nadu, Thiruvarur, Tamil Nadu 610005, India for providing the necessary facilities to complete the current work.Disclosure statementNo potential conflict of interest was reported by the author(s).
摘要本文研究了新型silver@cuprous氧化核-壳/羟基磷灰石(Ag@Cu2O/HAp)纳米杂交体对革兰氏阳性金黄色葡萄球菌和革兰氏阴性大肠杆菌的抑菌活性。利用水热技术制备了Ag@Cu2O/HAp核壳纳米杂化结构。通过控制Ag、Cu2O和HAp的相对浓度，实现了Ag@Cu2O核壳在HAp纳米颗粒上的固定。采用XRD、FTIR、Raman、UV-vis、SEM、EDX、TEM和SAED等方法对Ag@Cu2O/HAp纳米杂化物进行了表征。通过观察Ag、Ag@Cu2O、HAp和Ag@Cu2O/HAp纳米颗粒存在和不存在情况下金黄色葡萄球菌和大肠杆菌的生长情况，比较它们的抗菌效果。采用MIC Alamar Blue法研究Ag@Cu2O/HAp纳米材料的细胞毒性。此外，还进行了活性氧(ROS)研究，以了解在光照和黑暗条件下产生的活性物种类型。提出了Ag@Cu2O/HAp纳米杂种对金黄色葡萄球菌和大肠杆菌可能的光化学和抗菌机制。此外，Ag@Cu2O/HAp材料的抗菌特性表明它们是工业和生物医学应用的良好候选者。作者感谢泰米尔纳德邦中央大学材料科学系，Thiruvarur, Tamil Nadu 610005，印度，为完成本工作提供了必要的设施。披露声明作者未报告潜在的利益冲突。
{"title":"Hydrothermal synthesis of antibacterial silver@cuprous oxide core-shell/hydroxyapatite (Ag@Cu <sub>2</sub> O/HAp) hetero-nanohybrids","authors":"A. Jeshurun, Md. Irfan, B.M. Reddy","doi":"10.1080/14328917.2023.2264597","DOIUrl":"https://doi.org/10.1080/14328917.2023.2264597","url":null,"abstract":"ABSTRACTIn the present work, we examined the antibacterial activity of novel silver@cuprous oxide core-shell/hydroxyapatite (Ag@Cu2O/HAp) hetero-nanohybrids against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli bacteria. The hydrothermal technique was used to easily synthesise Ag@Cu2O/HAp core-shell nanohybrid structures. Immobilisation of Ag@Cu2O core shells on HAp nanoparticles was done by controlling the relative concentrations of Ag, Cu2O, and HAp. The Ag@Cu2O/HAp nanohybrids were characterised using XRD, FTIR, Raman, UV-vis, SEM, EDX, TEM, and SAED methods. By observing the growth of S. aureus and E. coli populations in the presence and absence of Ag, Ag@Cu2O, HAp, and Ag@Cu2O/HAp nanoparticles, their antibacterial impact was compared. MIC Alamar Blue assay was performed to study the cytotoxicity of Ag@Cu2O/HAp nanomaterials. In addition, reactive oxygen species (ROS) studies were conducted to understand the type of active species produced under light and dark conditions. The possible photochemical and antibacterial mechanisms of the Ag@Cu2O/HAp nanohybrids against S. aureus and E. coli bacteria were proposed. In addition, the promising antibacterial nature of Ag@Cu2O/HAp materials suggests that they are good candidates for industrial and biomedical applications.KEYWORDS: Ag@Cu2O core shellshydroxyapatitenanohybridshydrothermalantibacterial AcknowledgmentsThe authors thank Department of Materials Science, Central University of Tamil Nadu, Thiruvarur, Tamil Nadu 610005, India for providing the necessary facilities to complete the current work.Disclosure statementNo potential conflict of interest was reported by the author(s).","PeriodicalId":18235,"journal":{"name":"Materials Research Innovations","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135592114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-26DOI: 10.1080/14328917.2023.2262315
Ijabor Okeoghene Blessing, Haneef Shah, Shahbaz Afzal, Imosobomeh L. Ikhioya
ABSTRACTAn electrochemical approach was used to synthesise nickel iron sulphide (NiFeS) materials in this work. The prepared NiFeS underwent a thorough investigation, which included analyses of its optical, electrical, structural, morphological, elemental, and functional group properties. Cubic crystal formations with prominent peaks were visible from the structural pattern. Nanoflakes and pebbles were visible, and their elements were determined through elemental dispersive X-ray diffractometer (EDX) spectrum. The film’s crystallinity increased after incorporating carbon ions and its optical properties improved, with energy band gap values ranging from 1.50 eV to 1.15 eV as the peaks became more distinct. The materials produced could be utilised in the production of solar cells and optoelectronic devices. The electrical conductivity diminishes with increasing thickness. Carbon ion radiation increases carrier concentration, which increases electrical conductivity.Research highlightsNiFeS was irradiated using 500 keV carbon C++ ions beam irradiationNiFeS without irradiation has a bandgap of 1.50 eV, while the irradiated material had bandgaps between 1.35-1.15 eV.The film’s crystallinity was enhanced by incorporating carbon ionsNanogels and nanoflakes were seen in the micrographs of the unirradiated materials.KEYWORDS: NickelNiFeSions beamcarbonenergy bandgapirradiation Disclosure statementThe authors affirm no financial or interpersonal conflicts affected the research in this study.Data availability statementData can be given upon request.Authors’ credit statementIjabor Okeoghene Blessing, Haneef Shah, Imosobomeh L. Ikhioya: Conceptualisation, Methodology, Original Draft Writing, Imosobomeh L. Ikhioya and Shahbaz Afzal: software, and editing. Imosobomeh L. Ikhioya: Investigation and visualisation.
摘要采用电化学方法合成了硫化铁镍(NiFeS)材料。对制备的NiFeS进行了全面的研究，包括对其光学、电学、结构、形态、元素和官能团性质的分析。从结构图中可以看到具有突出峰的立方晶体结构。纳米薄片和鹅卵石可见，并通过元素色散x射线衍射(EDX)光谱测定其元素。加入碳离子后，薄膜的结晶度提高，光学性能得到改善，能带隙值在1.50 ~ 1.15 eV之间，峰更加明显。所生产的材料可用于生产太阳能电池和光电子器件。电导率随厚度的增加而降低。碳离子辐射增加载流子浓度，从而增加电导率。采用500 keV的碳C++离子束辐照snifes，未辐照的nifes带隙为1.50 eV，而辐照后的材料带隙为1.35 ~ 1.15 eV。在未辐照材料的显微照片中可以看到纳米凝胶和纳米薄片。关键词:镍离子束碳能带辐照披露声明作者确认本研究中没有经济或人际冲突影响研究。数据可用性声明可应要求提供数据。作者致谢:tijabor Okeoghene Blessing, Haneef Shah, Imosobomeh L. Ikhioya:概念化，方法论，原始草稿写作，Imosobomeh L. Ikhioya和Shahbaz Afzal:软件和编辑。Imosobomeh L. Ikhioya:调查和可视化。
{"title":"Enhanced structural properties of electrochemically synthesised NiFeS using 500 keV carbon C <sup>++</sup> ions irradiation","authors":"Ijabor Okeoghene Blessing, Haneef Shah, Shahbaz Afzal, Imosobomeh L. Ikhioya","doi":"10.1080/14328917.2023.2262315","DOIUrl":"https://doi.org/10.1080/14328917.2023.2262315","url":null,"abstract":"ABSTRACTAn electrochemical approach was used to synthesise nickel iron sulphide (NiFeS) materials in this work. The prepared NiFeS underwent a thorough investigation, which included analyses of its optical, electrical, structural, morphological, elemental, and functional group properties. Cubic crystal formations with prominent peaks were visible from the structural pattern. Nanoflakes and pebbles were visible, and their elements were determined through elemental dispersive X-ray diffractometer (EDX) spectrum. The film’s crystallinity increased after incorporating carbon ions and its optical properties improved, with energy band gap values ranging from 1.50 eV to 1.15 eV as the peaks became more distinct. The materials produced could be utilised in the production of solar cells and optoelectronic devices. The electrical conductivity diminishes with increasing thickness. Carbon ion radiation increases carrier concentration, which increases electrical conductivity.Research highlightsNiFeS was irradiated using 500 keV carbon C++ ions beam irradiationNiFeS without irradiation has a bandgap of 1.50 eV, while the irradiated material had bandgaps between 1.35-1.15 eV.The film’s crystallinity was enhanced by incorporating carbon ionsNanogels and nanoflakes were seen in the micrographs of the unirradiated materials.KEYWORDS: NickelNiFeSions beamcarbonenergy bandgapirradiation Disclosure statementThe authors affirm no financial or interpersonal conflicts affected the research in this study.Data availability statementData can be given upon request.Authors’ credit statementIjabor Okeoghene Blessing, Haneef Shah, Imosobomeh L. Ikhioya: Conceptualisation, Methodology, Original Draft Writing, Imosobomeh L. Ikhioya and Shahbaz Afzal: software, and editing. Imosobomeh L. Ikhioya: Investigation and visualisation.","PeriodicalId":18235,"journal":{"name":"Materials Research Innovations","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134958094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-18DOI: 10.1080/14328917.2023.2258469
Parmeshwar Lal Meena, Ajay Kumar Surela, Lata Kumari Chhachhia
ABSTRACTThe present work reported the bioinspired synthesis of Bi2O3 nanoparticles (NPs) using Ziziphus mauritiana leaves aqueous extract at four annealing temperatures (300, 400, 500, and 600C°) and examined annealing temperatures effect of on various physicochemical characteristics and photocatalytic activities of NPs. The XRD and Raman results reveal the existence of α and β polymorphs of Bi2O3 in all samples but with increase of calcination temperature the extent of α-phase, particle size, and crystallinity were increased while band gap value decreased. The BET results confirmed the mesoporous structure of all samples. Further, decolorization experiments conducted with crystal violet (CV) dye showed an observable effect of annealing temperature on the adsorption and photocatalytic efficacy of the prepared samples, and the utmost (99.88 %) removal of CV dye was computed with the Bi2O3 nanoparticles calcined at 300oC (B-300). The main active species involved in the photo-mineralization of dye was h+ followed by •OH..KEYWORDS: Bi2O3ziziphus mauritianacalcination temperaturephotocatalytic efficiencycrystal violet dye AcknowledgmentsThe authors are grateful to the University of Rajasthan, Jaipur, for providing infrastructural support. The technical assistance for this study was provided by MNIT, Jaipur Campus, and CAF, Manipal University, Jaipur.Disclosure statementThe authors declare that they do not have any conflict of interests among them.Supplementary materialSupplemental data for this article can be accessed online at https://doi.org/10.1080/14328917.2023.2258469
{"title":"Bi <sub>2</sub> O <sub>3</sub> nanoparticles: phytogenic synthesis, effect of calcination on physico-chemical characteristics and photocatalytic activity","authors":"Parmeshwar Lal Meena, Ajay Kumar Surela, Lata Kumari Chhachhia","doi":"10.1080/14328917.2023.2258469","DOIUrl":"https://doi.org/10.1080/14328917.2023.2258469","url":null,"abstract":"ABSTRACTThe present work reported the bioinspired synthesis of Bi2O3 nanoparticles (NPs) using Ziziphus mauritiana leaves aqueous extract at four annealing temperatures (300, 400, 500, and 600C°) and examined annealing temperatures effect of on various physicochemical characteristics and photocatalytic activities of NPs. The XRD and Raman results reveal the existence of α and β polymorphs of Bi2O3 in all samples but with increase of calcination temperature the extent of α-phase, particle size, and crystallinity were increased while band gap value decreased. The BET results confirmed the mesoporous structure of all samples. Further, decolorization experiments conducted with crystal violet (CV) dye showed an observable effect of annealing temperature on the adsorption and photocatalytic efficacy of the prepared samples, and the utmost (99.88 %) removal of CV dye was computed with the Bi2O3 nanoparticles calcined at 300oC (B-300). The main active species involved in the photo-mineralization of dye was h+ followed by •OH..KEYWORDS: Bi2O3ziziphus mauritianacalcination temperaturephotocatalytic efficiencycrystal violet dye AcknowledgmentsThe authors are grateful to the University of Rajasthan, Jaipur, for providing infrastructural support. The technical assistance for this study was provided by MNIT, Jaipur Campus, and CAF, Manipal University, Jaipur.Disclosure statementThe authors declare that they do not have any conflict of interests among them.Supplementary materialSupplemental data for this article can be accessed online at https://doi.org/10.1080/14328917.2023.2258469","PeriodicalId":18235,"journal":{"name":"Materials Research Innovations","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135149185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-11DOI: 10.1080/14328917.2023.2257474
Obianke M. Orumgbe, Samson O. Aisida, Ijeh Rufus, Henrietta O. Uzoeto, Azubike Ekwealor, Ishaq Ahmad, Fabian I. Ezema
Ferrite materials have found applications in various fields, particularly in biomedical fields. This work involves the preparation of Magnesium ferrite nanoparticles (MgFNPs) by biosynthesis protocol using polyethylene glycol (PEG-4000) and gongronema latifolium (GL) extracts as capping and reducing agents, to heighten the properties of MgFNPs for effective hyperthermia applications. Various characterization techniques were used to determine the properties of the formulated samples. Spherical morphology with low agglomeration was observed by the SEM analysis. The XRD showed a crystallite size between 10 and 49 nm. The VSM confirmed the superparamagnetic nature of the samples. The heating ability was observed to decrease to the therapeutic rage with GL and PEG. However, further investigations for the hyperthermia application were performed on the formulated samples by estimating their Specific loss power (SLP). The samples showed high SLP between 130.6 and 290.8 W/g. The materials capped with PEG has better properties for hyperthermia applications.
{"title":"Influence of polyethylene glycol and <i>Gongronema latifolium</i> on the structural, optical and magnetic properties of magnesium ferrite nanoparticles for hyperthermia applications","authors":"Obianke M. Orumgbe, Samson O. Aisida, Ijeh Rufus, Henrietta O. Uzoeto, Azubike Ekwealor, Ishaq Ahmad, Fabian I. Ezema","doi":"10.1080/14328917.2023.2257474","DOIUrl":"https://doi.org/10.1080/14328917.2023.2257474","url":null,"abstract":"Ferrite materials have found applications in various fields, particularly in biomedical fields. This work involves the preparation of Magnesium ferrite nanoparticles (MgFNPs) by biosynthesis protocol using polyethylene glycol (PEG-4000) and gongronema latifolium (GL) extracts as capping and reducing agents, to heighten the properties of MgFNPs for effective hyperthermia applications. Various characterization techniques were used to determine the properties of the formulated samples. Spherical morphology with low agglomeration was observed by the SEM analysis. The XRD showed a crystallite size between 10 and 49 nm. The VSM confirmed the superparamagnetic nature of the samples. The heating ability was observed to decrease to the therapeutic rage with GL and PEG. However, further investigations for the hyperthermia application were performed on the formulated samples by estimating their Specific loss power (SLP). The samples showed high SLP between 130.6 and 290.8 W/g. The materials capped with PEG has better properties for hyperthermia applications.","PeriodicalId":18235,"journal":{"name":"Materials Research Innovations","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135981516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-31DOI: 10.1080/14328917.2023.2252674
N. Toyama, Haruto Sato, Norifumi Terui, S. Furukawa
{"title":"Effect of particle size of the Ni/SiO2 hollow spheres on the activity for reduction of 4-nitrophenol","authors":"N. Toyama, Haruto Sato, Norifumi Terui, S. Furukawa","doi":"10.1080/14328917.2023.2252674","DOIUrl":"https://doi.org/10.1080/14328917.2023.2252674","url":null,"abstract":"","PeriodicalId":18235,"journal":{"name":"Materials Research Innovations","volume":"77 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87053257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-29DOI: 10.1080/14328917.2023.2252677
I. L. Ikhioya, A. Nkele, F. U. Ochai-Ejeh
{"title":"Green synthesis of copper oxide nanoparticles using neem leaf extract (Azadirachta indica) for energy storage applications","authors":"I. L. Ikhioya, A. Nkele, F. U. Ochai-Ejeh","doi":"10.1080/14328917.2023.2252677","DOIUrl":"https://doi.org/10.1080/14328917.2023.2252677","url":null,"abstract":"","PeriodicalId":18235,"journal":{"name":"Materials Research Innovations","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75809246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-28DOI: 10.1080/14328917.2023.2250625
A. K. Shahi, Rathy Shankar, B. Pandey, Raj Ram Gopal
{"title":"Temporal-dependent photoconductivity of Cd@ZnS microspheres","authors":"A. K. Shahi, Rathy Shankar, B. Pandey, Raj Ram Gopal","doi":"10.1080/14328917.2023.2250625","DOIUrl":"https://doi.org/10.1080/14328917.2023.2250625","url":null,"abstract":"","PeriodicalId":18235,"journal":{"name":"Materials Research Innovations","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86609789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-28DOI: 10.1080/14328917.2023.2250634
N. J R, S. D, B. Praveen, L. K S, P. P.
{"title":"Carbon dioxide sensing using a PEI-Cr2O3-rGO nanocomposite sensor with patterned copper clad as a substrate","authors":"N. J R, S. D, B. Praveen, L. K S, P. P.","doi":"10.1080/14328917.2023.2250634","DOIUrl":"https://doi.org/10.1080/14328917.2023.2250634","url":null,"abstract":"","PeriodicalId":18235,"journal":{"name":"Materials Research Innovations","volume":"77 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79643363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-16DOI: 10.1080/14328917.2023.2247725
Kingsley O. Iwuozor, Kayode P. Odimayomi, Ebuka Chizitere Emenike, Mustapha Ndagi, Adewale George Adeniyi
ABSTRACTActivated carbon monoliths (ACMs) are single-piece, three-dimensional (3D) hierarchical porous structures with good permeability, high stability, and swift mass transfer features. Production of activated carbon monoliths from biomass has been identified as promising and sustainable for process development. In this study, ACM was synthesised from African locust bean pods and polystyrene resin. The pods were chemically activated using potassium hydroxide and then carbonised in a locally fabricated auto-thermal biomass-powered reactor for 100 minutes. The activated carbon was then hand-mixed with an organic binder, expanded polystyrene resin, and the product was thermally cured to form the ACM. The ACM was then characterised to determine its properties. Elemental determination revealed the ACM was mostly composed of carbon (63%), potassium (18%), oxygen (4%), and a host of other metals. SEM micrographs showed that the ACM’s surface is composed of irregular or heterogeneous-sized carbon materials firmly held by the resin with well-developed visible micropores. Some of the functional groups inherent in the ACM include hydroxyl, alkene, carbonyl, and alkyne. The ACM has a BET surface area of 237 m2/g, a pore diameter of 2.86 nm, and a Young modulus of 1.064 MPa. The synthesised ACM can be utilised as an adsorbent for pollution control, as a catalyst, and for electrochemical applications.KEYWORDS: Carbonizationchemical activationmaterial recyclingParkia biglobosawaste management Disclosure statementNo potential conflict of interest was reported by the author(s).Compliance with ethical standardsThis article does not contain any studies involving human or animal subjects.Additional informationFundingThere was no external funding for the study.
{"title":"Synthesis and characterization of activated carbon monolith from African locust bean pods and polystyrene resin","authors":"Kingsley O. Iwuozor, Kayode P. Odimayomi, Ebuka Chizitere Emenike, Mustapha Ndagi, Adewale George Adeniyi","doi":"10.1080/14328917.2023.2247725","DOIUrl":"https://doi.org/10.1080/14328917.2023.2247725","url":null,"abstract":"ABSTRACTActivated carbon monoliths (ACMs) are single-piece, three-dimensional (3D) hierarchical porous structures with good permeability, high stability, and swift mass transfer features. Production of activated carbon monoliths from biomass has been identified as promising and sustainable for process development. In this study, ACM was synthesised from African locust bean pods and polystyrene resin. The pods were chemically activated using potassium hydroxide and then carbonised in a locally fabricated auto-thermal biomass-powered reactor for 100 minutes. The activated carbon was then hand-mixed with an organic binder, expanded polystyrene resin, and the product was thermally cured to form the ACM. The ACM was then characterised to determine its properties. Elemental determination revealed the ACM was mostly composed of carbon (63%), potassium (18%), oxygen (4%), and a host of other metals. SEM micrographs showed that the ACM’s surface is composed of irregular or heterogeneous-sized carbon materials firmly held by the resin with well-developed visible micropores. Some of the functional groups inherent in the ACM include hydroxyl, alkene, carbonyl, and alkyne. The ACM has a BET surface area of 237 m2/g, a pore diameter of 2.86 nm, and a Young modulus of 1.064 MPa. The synthesised ACM can be utilised as an adsorbent for pollution control, as a catalyst, and for electrochemical applications.KEYWORDS: Carbonizationchemical activationmaterial recyclingParkia biglobosawaste management Disclosure statementNo potential conflict of interest was reported by the author(s).Compliance with ethical standardsThis article does not contain any studies involving human or animal subjects.Additional informationFundingThere was no external funding for the study.","PeriodicalId":18235,"journal":{"name":"Materials Research Innovations","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136391551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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