Pub Date : 2017-01-02DOI: 10.1080/22243682.2016.1254062
S. G. Chavan, A. Tarale, P. M. Kharade, S. Kulkarni, D. J. Salunkhe
The hydrothermal technique was used to synthesize barium strontium titanate nanoparticles of Ba1−xSrxTiO3 (BSTx), where x = 0.2 and 0.3. The nanoparticles of BSTx are annealed at 800 °C for 1 h to stabilize the crystalline phase. The annealed BSTx was used to produce ceramic bodies employing a microwave sintering at 1200 °C. Effectively, BSTx samples are synthesized via double-sintering route. BST0.20 and BST0.30 are subjected to the particle size analysis, crystal structure analysis and dielectric and ferroelectric properties. The observations are interesting and the results could be correlated and compared with earlier reports.
{"title":"Characterization of microwave-sintered barium strontium titanate nanoparticles prepared by the hydrothermal method","authors":"S. G. Chavan, A. Tarale, P. M. Kharade, S. Kulkarni, D. J. Salunkhe","doi":"10.1080/22243682.2016.1254062","DOIUrl":"https://doi.org/10.1080/22243682.2016.1254062","url":null,"abstract":"The hydrothermal technique was used to synthesize barium strontium titanate nanoparticles of Ba1−xSrxTiO3 (BSTx), where x = 0.2 and 0.3. The nanoparticles of BSTx are annealed at 800 °C for 1 h to stabilize the crystalline phase. The annealed BSTx was used to produce ceramic bodies employing a microwave sintering at 1200 °C. Effectively, BSTx samples are synthesized via double-sintering route. BST0.20 and BST0.30 are subjected to the particle size analysis, crystal structure analysis and dielectric and ferroelectric properties. The observations are interesting and the results could be correlated and compared with earlier reports.","PeriodicalId":17291,"journal":{"name":"Journal of the Chinese Advanced Materials Society","volume":"15 1","pages":"47-56"},"PeriodicalIF":0.0,"publicationDate":"2017-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74780731","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 : 2017-01-02DOI: 10.1080/22243682.2016.1259964
C. Kadurumba, S. O. Enibe
The study optimised the performance of a continuous cassava dewatering machine (centrifuge). The work used the developed mathematical models for predicting the responses of the centrifuge using dim...
本研究优化了连续式木薯脱水机(离心机)的性能。本工作利用已建立的数学模型来预测离心分离机的响应。
{"title":"Performance optimisation of a centrifuge for cassava manihot species dewatering","authors":"C. Kadurumba, S. O. Enibe","doi":"10.1080/22243682.2016.1259964","DOIUrl":"https://doi.org/10.1080/22243682.2016.1259964","url":null,"abstract":"The study optimised the performance of a continuous cassava dewatering machine (centrifuge). The work used the developed mathematical models for predicting the responses of the centrifuge using dim...","PeriodicalId":17291,"journal":{"name":"Journal of the Chinese Advanced Materials Society","volume":"5 3 1","pages":"1-19"},"PeriodicalIF":0.0,"publicationDate":"2017-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78058551","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 : 2017-01-02DOI: 10.1080/22243682.2016.1250107
Ayesha Kausar
ABSTRACTIn this work, blend membrane of polycarbonate (PC) and poly(styrene-co-allyl alcohol) (PSAA) was fabricated via phase inversion technique. Two types of nanofiller were employed for the membrane reinforcement including nano-zeolite (NZ) and bifiller of nano-zeolite-carbon nanotube (NZ-CNT). The PC/PSAA/NZ-CNT membrane with 10 wt.% filler revealed the formation of gyroid type microstructure. The tensile strength of PC/PSAA/NZ 1–10 was 42.1–55.5 MPa, whereas PC/PSAA/NZ-CNT 1–10 showed higher value of 56.9–68.7 MPa. Moreover, the tensile strength of PC/PSAA/NZ-CNT 10 was 53% higher than the PC/PSAA matrix (32.2 MPa). Similarly, the Young's modulus of PC/PSAA/NZ-CNT 1–10 was increased from 133.2 to 144.2 MPa, and was found higher than the PC/PSAA/NZ 1–10 (101.1–122.1 MPa). The NZ-CNT filler was found more effective than NZ in enhancing permselectivity. The αCO2/N2 for PC/PSAA/NZ-CNT 10 was increased up to 38.2, which was higher than the PC/PSAA/NZ 10 (36.3) and neat blend (27.2). The permeability PCO2 ...
{"title":"Membranes of polycarbonate/poly(styrene-co-allyl alcohol) reinforced with nano-zeolite-based filler for gas separation","authors":"Ayesha Kausar","doi":"10.1080/22243682.2016.1250107","DOIUrl":"https://doi.org/10.1080/22243682.2016.1250107","url":null,"abstract":"ABSTRACTIn this work, blend membrane of polycarbonate (PC) and poly(styrene-co-allyl alcohol) (PSAA) was fabricated via phase inversion technique. Two types of nanofiller were employed for the membrane reinforcement including nano-zeolite (NZ) and bifiller of nano-zeolite-carbon nanotube (NZ-CNT). The PC/PSAA/NZ-CNT membrane with 10 wt.% filler revealed the formation of gyroid type microstructure. The tensile strength of PC/PSAA/NZ 1–10 was 42.1–55.5 MPa, whereas PC/PSAA/NZ-CNT 1–10 showed higher value of 56.9–68.7 MPa. Moreover, the tensile strength of PC/PSAA/NZ-CNT 10 was 53% higher than the PC/PSAA matrix (32.2 MPa). Similarly, the Young's modulus of PC/PSAA/NZ-CNT 1–10 was increased from 133.2 to 144.2 MPa, and was found higher than the PC/PSAA/NZ 1–10 (101.1–122.1 MPa). The NZ-CNT filler was found more effective than NZ in enhancing permselectivity. The αCO2/N2 for PC/PSAA/NZ-CNT 10 was increased up to 38.2, which was higher than the PC/PSAA/NZ 10 (36.3) and neat blend (27.2). The permeability PCO2 ...","PeriodicalId":17291,"journal":{"name":"Journal of the Chinese Advanced Materials Society","volume":"50 1","pages":"33-46"},"PeriodicalIF":0.0,"publicationDate":"2017-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74345636","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 : 2017-01-02DOI: 10.1080/22243682.2016.1256792
M. Kopani, M. Mikula, E. Pinčík, H. Kobayashi, Masao Takahashi
Silicon dioxide layers are materials with unique dielectric and interface properties. We investigated samples with SiO2 layers prepared with nitric acid oxidation of silicon (NAOS) method and with natural oxide layer after passivation with HCN aqueous solution. Samples were investigated with atomic force microscopy (AFM) and Fourier transform infrared (FTIR) spectroscopy. We found higher roughness of layers after passivation and different effects of HCN passivation on samples. From the measurements, we conclude that HCN passivation influences structural and optical properties of SiO2 layer.
{"title":"Effect of HCN passivation on silicon oxide thin layer","authors":"M. Kopani, M. Mikula, E. Pinčík, H. Kobayashi, Masao Takahashi","doi":"10.1080/22243682.2016.1256792","DOIUrl":"https://doi.org/10.1080/22243682.2016.1256792","url":null,"abstract":"Silicon dioxide layers are materials with unique dielectric and interface properties. We investigated samples with SiO2 layers prepared with nitric acid oxidation of silicon (NAOS) method and with natural oxide layer after passivation with HCN aqueous solution. Samples were investigated with atomic force microscopy (AFM) and Fourier transform infrared (FTIR) spectroscopy. We found higher roughness of layers after passivation and different effects of HCN passivation on samples. From the measurements, we conclude that HCN passivation influences structural and optical properties of SiO2 layer.","PeriodicalId":17291,"journal":{"name":"Journal of the Chinese Advanced Materials Society","volume":"23 6","pages":"57-64"},"PeriodicalIF":0.0,"publicationDate":"2017-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72601903","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 : 2017-01-02DOI: 10.1080/22243682.2016.1251334
T. Lambat, S. Deo
Novel benzofluorenone derivatives have been prepared in remarkably outstanding yield through intramolecular cyclization of β-arylidene-β-benzoylpropionic acid. The reaction was promoted proficiently by extremely small amounts of montmorillonite K10 acting as a heterogeneous catalyst using ethanolic medium at 100 °C. It is for the first time that, these newly synthesized benzofluorenone derivatives exhibited anti-HIV (antiretroviral) activity. This important activity was estimated by using regular assay kits. Further, among the synthesized basic benzofluorenone derivatives, the compound named ‘2C’ was found to be most potent with the lowest IC50 (21.86 µg/mL) followed by the compound ‘2G’ with IC50 (27.40 µg/mL).
{"title":"Synthesis of novel benzofluorenone derivatives and their HIV reverse transcriptase inhibitory activity","authors":"T. Lambat, S. Deo","doi":"10.1080/22243682.2016.1251334","DOIUrl":"https://doi.org/10.1080/22243682.2016.1251334","url":null,"abstract":"Novel benzofluorenone derivatives have been prepared in remarkably outstanding yield through intramolecular cyclization of β-arylidene-β-benzoylpropionic acid. The reaction was promoted proficiently by extremely small amounts of montmorillonite K10 acting as a heterogeneous catalyst using ethanolic medium at 100 °C. It is for the first time that, these newly synthesized benzofluorenone derivatives exhibited anti-HIV (antiretroviral) activity. This important activity was estimated by using regular assay kits. Further, among the synthesized basic benzofluorenone derivatives, the compound named ‘2C’ was found to be most potent with the lowest IC50 (21.86 µg/mL) followed by the compound ‘2G’ with IC50 (27.40 µg/mL).","PeriodicalId":17291,"journal":{"name":"Journal of the Chinese Advanced Materials Society","volume":"44 1","pages":"20-32"},"PeriodicalIF":0.0,"publicationDate":"2017-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89726002","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 : 2016-09-27DOI: 10.1080/22243682.2016.1214923
B. Kaith, Jitender Sharma, Sukriti, Surbhi Sethi, T. Kaur, U. Shanker, Vidhisha Jassal
In the present work, the synthesis of novel device for the efficient removal of toxic cationic dye methylene blue (MB) from aqueous fluid was carried out. The device was fabricated by in-situ incorporation of K2Zn3[Fe(CN)6]2·9H2O nanoparticles into gum semi-IPN matrix in the presence of glutaraldehyde-ammonium persulphate as crosslinker–initiator system. The effect of several reaction variables such as time, solvent, temperature, pH, crosslinker, initiator concentration and monomer concentration on the fluid uptake capacity of the candidate sample was explored. The morphological and structural properties were studied using Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy and X-ray diffraction studies. Thermal stability was evaluated by thermogravimetric analysis/differential thermal analysis/differential thermogravimetric analysis. Contact time, adsorbent dose and initial concentration of dye solution were optimized for maximum dye removal and it was ...
{"title":"Fabrication of green device for efficient capture of toxic methylene blue from industrial effluent based on K2Zn3[Fe(CN)6]2·9H2O nanoparticles reinforced gum xanthan-psyllium hydrogel nanocomposite","authors":"B. Kaith, Jitender Sharma, Sukriti, Surbhi Sethi, T. Kaur, U. Shanker, Vidhisha Jassal","doi":"10.1080/22243682.2016.1214923","DOIUrl":"https://doi.org/10.1080/22243682.2016.1214923","url":null,"abstract":"In the present work, the synthesis of novel device for the efficient removal of toxic cationic dye methylene blue (MB) from aqueous fluid was carried out. The device was fabricated by in-situ incorporation of K2Zn3[Fe(CN)6]2·9H2O nanoparticles into gum semi-IPN matrix in the presence of glutaraldehyde-ammonium persulphate as crosslinker–initiator system. The effect of several reaction variables such as time, solvent, temperature, pH, crosslinker, initiator concentration and monomer concentration on the fluid uptake capacity of the candidate sample was explored. The morphological and structural properties were studied using Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy and X-ray diffraction studies. Thermal stability was evaluated by thermogravimetric analysis/differential thermal analysis/differential thermogravimetric analysis. Contact time, adsorbent dose and initial concentration of dye solution were optimized for maximum dye removal and it was ...","PeriodicalId":17291,"journal":{"name":"Journal of the Chinese Advanced Materials Society","volume":"35 1","pages":"249-268"},"PeriodicalIF":0.0,"publicationDate":"2016-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86630108","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 : 2016-09-12DOI: 10.1080/22243682.2016.1230475
Vaneet Kumar, N. C. Kothiyal, . Saruchi, P. Vikas, R. Sharma
Polycyclic aromatic hydrocarbons (PAHs) are chemical compounds containing two or more fused benzene rings in linear, angular or cluster arrangement, consisting of only carbon and hydrogen. Polycyclic aromatic carbons (PACs) include the unsubstituted hydrocarbons (PAHs) and substituted PAHs (e.g. nitro-PAH, oxygenated PAH). PAHs are the most stable form of hydrocarbons having low hydrogen-to-carbon ratio and usually occur in complex mixtures rather than single compounds. They are usually generated under inefficient combustion conditions (e.g. in incomplete supply of oxygen).This paper deals with type carcinogenic PAHs generated in the environment from various sources, environment distribution and health effect.This paper provides a review of current information on the concentrations, burdens and fate of PAHs in the atmosphere, with reference to the historical trends in PAH emissions. The major anthropogenic sources of PAHs and their effect on the concentrations of these compounds in air on a national–inter...
{"title":"Sources, distribution, and health effect of carcinogenic polycyclic aromatic hydrocarbons (PAHs) – current knowledge and future directions","authors":"Vaneet Kumar, N. C. Kothiyal, . Saruchi, P. Vikas, R. Sharma","doi":"10.1080/22243682.2016.1230475","DOIUrl":"https://doi.org/10.1080/22243682.2016.1230475","url":null,"abstract":"Polycyclic aromatic hydrocarbons (PAHs) are chemical compounds containing two or more fused benzene rings in linear, angular or cluster arrangement, consisting of only carbon and hydrogen. Polycyclic aromatic carbons (PACs) include the unsubstituted hydrocarbons (PAHs) and substituted PAHs (e.g. nitro-PAH, oxygenated PAH). PAHs are the most stable form of hydrocarbons having low hydrogen-to-carbon ratio and usually occur in complex mixtures rather than single compounds. They are usually generated under inefficient combustion conditions (e.g. in incomplete supply of oxygen).This paper deals with type carcinogenic PAHs generated in the environment from various sources, environment distribution and health effect.This paper provides a review of current information on the concentrations, burdens and fate of PAHs in the atmosphere, with reference to the historical trends in PAH emissions. The major anthropogenic sources of PAHs and their effect on the concentrations of these compounds in air on a national–inter...","PeriodicalId":17291,"journal":{"name":"Journal of the Chinese Advanced Materials Society","volume":"64 1","pages":"302-321"},"PeriodicalIF":0.0,"publicationDate":"2016-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78406606","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 : 2016-08-09DOI: 10.1080/22243682.2016.1215934
C. Kadurumba, S. Nwanya
In this study, cassava (Manihot species) dewatering centrifuge was modeled as a multivariable machine using dimensional analysis. The efficiency and throughput of the centrifuge were modeled. Also, responses such as product moisture, product recovery, effluent, mass number, processing time number and power consumption number were modeled. The independent and dependent (responses) variables were measured. Their values such as their coefficient of determination, standard and percentage errors were compared. The correlation coefficients for the dependent variables R2 = 0.893, 0.999, 0.998, 0.979, 0.906 and 0.987, respectively, are clear evidence of high degrees of correlation between measured and predicted results. The result of residual analysis between measured experimental results and predicted models ranged between −3.3401% and 2.6009%, −0.3043% and 0.3699%, −0.3625% and 0.7631%, −280.33 and 261.53, −284.68 and 279.47, and −240,148 and 260,358. Percentage (%) errors were between −21.65% and 11.36%, −0.40...
{"title":"Modeling of a centrifuge for cassava mash (Manihot species) dewatering","authors":"C. Kadurumba, S. Nwanya","doi":"10.1080/22243682.2016.1215934","DOIUrl":"https://doi.org/10.1080/22243682.2016.1215934","url":null,"abstract":"In this study, cassava (Manihot species) dewatering centrifuge was modeled as a multivariable machine using dimensional analysis. The efficiency and throughput of the centrifuge were modeled. Also, responses such as product moisture, product recovery, effluent, mass number, processing time number and power consumption number were modeled. The independent and dependent (responses) variables were measured. Their values such as their coefficient of determination, standard and percentage errors were compared. The correlation coefficients for the dependent variables R2 = 0.893, 0.999, 0.998, 0.979, 0.906 and 0.987, respectively, are clear evidence of high degrees of correlation between measured and predicted results. The result of residual analysis between measured experimental results and predicted models ranged between −3.3401% and 2.6009%, −0.3043% and 0.3699%, −0.3625% and 0.7631%, −280.33 and 261.53, −284.68 and 279.47, and −240,148 and 260,358. Percentage (%) errors were between −21.65% and 11.36%, −0.40...","PeriodicalId":17291,"journal":{"name":"Journal of the Chinese Advanced Materials Society","volume":"15 1","pages":"285-301"},"PeriodicalIF":0.0,"publicationDate":"2016-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85043132","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 : 2016-08-04DOI: 10.1080/22243682.2016.1214924
S. Mane, P. Tirmali, S. Kadam, Arjun R. Tarale, C. B. Kolekar, S. Kulkarni
Multiferroic nanocomposites x[Co0.9Ni0.1Fe2O4]-(1−x)[0.5(Ba0.7Ca0.3)TiO3-0.5Ba(Zr0.2Ti0.8)O3], x = 0.1, 0.2, 0.3, 0.4, have been prepared by the co-precipitation method followed by microwave sintering. The properties of the sintered composites were investigated using different techniques, namely, structural, micro-structural, dielectric, magnetic, and magnetodielectric analyses. X-ray diffraction analysis confirms the perovskite phase and spinal phase. The dielectric constant and loss factor of the composites were studied as a function of frequency and temperature. It is observed that the dielectric constant has two anomalies: one corresponds to ferroelectric to paraelectric transition below ∼130 °C of BCT–BZT and second is the magnetic transition of CNFO above ∼450 °C. Both the ferroelectric and ferromagnetic behaviours of the composites were observed at room temperature with strong dependence on the content of magnetic material. Saturation magnetization (Ms) increases with increase in the content of CNF...
采用微波烧结共沉淀法制备了x[Co0.9Ni0.1Fe2O4]-(1−x)[0.5(Ba0.7Ca0.3)TiO3-0.5Ba(Zr0.2Ti0.8)O3]， x = 0.1, 0.2, 0.3, 0.4的多铁纳米复合材料。采用不同的技术，即结构、微结构、介电、磁和磁介质分析，研究了烧结复合材料的性能。x射线衍射分析证实了钙钛矿相和脊柱相。研究了复合材料的介电常数和损耗因子随频率和温度的变化规律。观察到介电常数有两个异常:一个对应于BCT-BZT在~ 130°C以下的铁电到准电转变，另一个对应于CNFO在~ 450°C以上的磁转变。在室温下观察了复合材料的铁电行为和铁磁行为，并对磁性材料的含量有很强的依赖性。饱和磁化强度(Ms)随CNF含量的增加而增加。
{"title":"Dielectric, magnetic, and magnetodielectric properties of x[Co0.9Ni0.1Fe2O4]-(1−x)[0.5(Ba0.7Ca0.3)TiO3)-0.5Ba(Zr0.2Ti0.8)O3] multiferroic composites","authors":"S. Mane, P. Tirmali, S. Kadam, Arjun R. Tarale, C. B. Kolekar, S. Kulkarni","doi":"10.1080/22243682.2016.1214924","DOIUrl":"https://doi.org/10.1080/22243682.2016.1214924","url":null,"abstract":"Multiferroic nanocomposites x[Co0.9Ni0.1Fe2O4]-(1−x)[0.5(Ba0.7Ca0.3)TiO3-0.5Ba(Zr0.2Ti0.8)O3], x = 0.1, 0.2, 0.3, 0.4, have been prepared by the co-precipitation method followed by microwave sintering. The properties of the sintered composites were investigated using different techniques, namely, structural, micro-structural, dielectric, magnetic, and magnetodielectric analyses. X-ray diffraction analysis confirms the perovskite phase and spinal phase. The dielectric constant and loss factor of the composites were studied as a function of frequency and temperature. It is observed that the dielectric constant has two anomalies: one corresponds to ferroelectric to paraelectric transition below ∼130 °C of BCT–BZT and second is the magnetic transition of CNFO above ∼450 °C. Both the ferroelectric and ferromagnetic behaviours of the composites were observed at room temperature with strong dependence on the content of magnetic material. Saturation magnetization (Ms) increases with increase in the content of CNF...","PeriodicalId":17291,"journal":{"name":"Journal of the Chinese Advanced Materials Society","volume":"1 1","pages":"269-284"},"PeriodicalIF":0.0,"publicationDate":"2016-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82951557","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 : 2016-06-28DOI: 10.1080/22243682.2016.1196389
M. Gharpure, R. Chaudhary, Kimaya Potdar, Jay A. Tanna, Alok R. Rai, H. Juneja
AbstractThis article reports the synthesis of bis [3-acetoxy-2-aryl/heteroaryl-4H-chromone] Cu (II) complexes 6(a–g) in 1:2 stoichiometry ratio of copper acetate and 3-acetoxy-2-aryl/heteroaryl-4H-chromone. While chelating ligands, active functionalized 3-acetoxyflavones (2-aryl/heteroaryl-3-acetoxy-4H-chromones) 5(a–g) are synthesized by Algar–Flynn–Oyamada transformation of chalcones (1-(2-hydroxyphenyl)-3-phenylprop-2-en-1-ones) 4(a–g). The synthesized copper complexes are characterized by the standard techniques such as physical Fourier transform infrared spectroscopy (FT-IR), UV-reflectance spectroscopy, magnetic susceptibility and thermal analysis. Furthermore, antimicrobial activities are investigated using the standard methods. The antifungal activity was tested against Rhizoctonia solani and Candida tropicals, while antibacterial activity was screened against pathogenic bacteria such as Escherichia coli, Staphylococcus aureus, Bacillus subtilis and Pseudomonas aeruginosa.
{"title":"Facile synthesis, thermal degradation and effective antimicrobial activities of Cu (II) complexes with bis [3-acetoxy-2-aryl/heteroaryl-4H-chromone]","authors":"M. Gharpure, R. Chaudhary, Kimaya Potdar, Jay A. Tanna, Alok R. Rai, H. Juneja","doi":"10.1080/22243682.2016.1196389","DOIUrl":"https://doi.org/10.1080/22243682.2016.1196389","url":null,"abstract":"AbstractThis article reports the synthesis of bis [3-acetoxy-2-aryl/heteroaryl-4H-chromone] Cu (II) complexes 6(a–g) in 1:2 stoichiometry ratio of copper acetate and 3-acetoxy-2-aryl/heteroaryl-4H-chromone. While chelating ligands, active functionalized 3-acetoxyflavones (2-aryl/heteroaryl-3-acetoxy-4H-chromones) 5(a–g) are synthesized by Algar–Flynn–Oyamada transformation of chalcones (1-(2-hydroxyphenyl)-3-phenylprop-2-en-1-ones) 4(a–g). The synthesized copper complexes are characterized by the standard techniques such as physical Fourier transform infrared spectroscopy (FT-IR), UV-reflectance spectroscopy, magnetic susceptibility and thermal analysis. Furthermore, antimicrobial activities are investigated using the standard methods. The antifungal activity was tested against Rhizoctonia solani and Candida tropicals, while antibacterial activity was screened against pathogenic bacteria such as Escherichia coli, Staphylococcus aureus, Bacillus subtilis and Pseudomonas aeruginosa.","PeriodicalId":17291,"journal":{"name":"Journal of the Chinese Advanced Materials Society","volume":"45 1","pages":"195-210"},"PeriodicalIF":0.0,"publicationDate":"2016-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78714307","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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