Journal of Nanostructures最新文献

Removal of azo dyes pollutants: Photo catalyst and magnetic investigation of iron oxide-zinc sulfide nanocomposites 偶氮染料污染物的去除:氧化铁-硫化锌纳米复合材料的光催化和磁性研究

IF 1.4

Journal of Nanostructures Pub Date : 2021-01-01 DOI: 10.22052/JNS.2021.01.011

Rosa Amini, G. Nabiyouni, Saghar Jarollahi

{"title":"Removal of azo dyes pollutants: Photo catalyst and magnetic investigation of iron oxide-zinc sulfide nanocomposites","authors":"Rosa Amini, G. Nabiyouni, Saghar Jarollahi","doi":"10.22052/JNS.2021.01.011","DOIUrl":"https://doi.org/10.22052/JNS.2021.01.011","url":null,"abstract":"ZnS and iron oxide nanoparticles were first synthesized via precipitation and hydrothermal methods respectively. Fe3O4/ZnS nano-composites were then prepared using precipitation method. The prepared products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared (FT-IR) spectroscopy. Vibrating sample magnetometer (VSM) was used to study the magnetic property of the products. The photo-catalytic behaviour of Fe3O4/ZnS nano-composites was evaluated using the degradation of three azo-dyes under ultraviolet light irradiation. The results illustrate super paramagnetic and ferromagnetic behaviour of Fe3O4 nanoparticles. The photo catalytic behaviour of Fe3O4/ZnS nano-composites was evaluated using the degradation of three various azo dyes under ultraviolet light irradiation. The results show that, the prepared nano-composites are applicable for magnetic and photo catalytic performance.ZnS and iron oxide nanoparticles were first synthesized via precipitation and hydrothermal methods respectively. Fe3O4/ZnS nano-composites were then prepared using precipitation method. The prepared products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared (FT-IR) spectroscopy. Vibrating sample magnetometer (VSM) was used to study the magnetic property of the products. The photo-catalytic behaviour of Fe3O4/ZnS nano-composites was evaluated using the degradation of three azo-dyes under ultraviolet light irradiation. The results illustrate super paramagnetic and ferromagnetic behaviour of Fe3O4 nanoparticles. The photo catalytic behaviour of Fe3O4/ZnS nano-composites was evaluated using the degradation of three various azo dyes under ultraviolet light irradiation. The results show that, the prepared nano-composites are applicable for magnetic and photo catalytic performance.","PeriodicalId":16523,"journal":{"name":"Journal of Nanostructures","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68412102","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}

引用次数: 5

Silver-nanoparticle Supported on Nanocrystalline Cellulose using Cetyltrimethylammonium Bromide: Synthesis and Catalytic Performance for Decolorization of Dyes 十六烷基三甲基溴化铵纳米晶纤维素负载银纳米颗粒:合成及其染料脱色催化性能

IF 1.4

Journal of Nanostructures Pub Date : 2021-01-01 DOI: 10.22052/JNS.2021.01.006

Hannaneh Heidari, M. Karbalaee

{"title":"Silver-nanoparticle Supported on Nanocrystalline Cellulose using Cetyltrimethylammonium Bromide: Synthesis and Catalytic Performance for Decolorization of Dyes","authors":"Hannaneh Heidari, M. Karbalaee","doi":"10.22052/JNS.2021.01.006","DOIUrl":"https://doi.org/10.22052/JNS.2021.01.006","url":null,"abstract":"We reported that the ultrasonically synthesized nanocrystalline cellulose (NCC) from microcrystalline cellulose has the capacity for use as natural and green matrices for the synthesis of silver nanoparticles. Cationic surfactant cetyltrimethylammonium bromide (CTAB) was employed as a modifier and stabilizer for NCC. The structure of as-synthesized composite (Ag/CTAB/NCC) was characterized by Fourier transform infrared spectroscopy (FT-IR); field emission scanning electron microscopy (FE-SEM); Transmission electron microscopy (TEM); Energy dispersive spectroscopy (EDS), and X-ray diffraction (XRD). The XRD pattern confirmed the single cubic phase of Ag nanoparticles with a crystallite size of about 30 nm. The catalytic activity of Ag/CTAB/NCC has been analyzed by performing the reduction of certain toxic azo methyl orange dye (MO) (by two methods) and aromatic nitro compound of 4- nitrophenol (4-NP) in shorter time. The reduction of MO to hydrazine derivatives and 4-NP to 4-aminophenol takes place with pseudo-first-order rate constants. The reduction time regularly decreased and the rate of reduction (k) increases (3 fold) with increasing catalyst amount in method (2) (mmol NaBH4/mmol MO = 250 and 42 mg catalyst) compared to the method (1) (mmol NaBH4/mmol MO = 400 and 5 mg catalyst). The results indicated that spherical AgNPs immobilized CTAB-adsorbed NCC showed better catalytic activity and shorter reduction time towards the removal of methyl orange (k = 14.2 × 10-3 s-1, t =150 s) and 4-nitrophenol (k = 5.4 × 10-3 s-1, t = 180 s) compared with previous works that could be introduced as an effective method for the catalytic treatment of wastewater.","PeriodicalId":16523,"journal":{"name":"Journal of Nanostructures","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68411880","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}

引用次数: 1

One-Pot Hydrothermal Synthesis of Functionalized Mesoporous Silica for Effective Removal of Pb(II) Ion 一锅水热合成功能化介孔二氧化硅有效去除Pb(II)离子

IF 1.4

Journal of Nanostructures Pub Date : 2021-01-01 DOI: 10.22052/JNS.2021.01.014

Najmeh Atoub, A. Amiri, Alireza Badiei, J. Ghasemi

{"title":"One-Pot Hydrothermal Synthesis of Functionalized Mesoporous Silica for Effective Removal of Pb(II) Ion","authors":"Najmeh Atoub, A. Amiri, Alireza Badiei, J. Ghasemi","doi":"10.22052/JNS.2021.01.014","DOIUrl":"https://doi.org/10.22052/JNS.2021.01.014","url":null,"abstract":"There is a huge scope for the removal of heavy metal ions from aqueous solutions. In this study, mesoporous silica materials, (MSMs), functionalized with (3-Mercaptopropyl) trimethoxysilane, (MPTS/MSMs), were prepared and used for adsorption of Pb(II) ions from aqueous solutions. The synthesis of MPTS/MSMs adsorbent was done using one-pot hydrothermal method by immobilizing 3-Mercaptopropyl trimethoxysilane onto mesoporous silica surface. The structure and properties of the adsorbent were explored using different techniques such as FT-IR, XRD, SEM, TEM, TGA, and N2 adsorption-desorption isotherms. The adsorption applicability of prepared nanostructure for removal of the Pb(II) ions from the aqueous solution was investigated and the results showed a good selectivity in the absorption of Pb(II) ions over other ions in aqueous solution. The effect of different parameters including the solution pH, Pb(II) concentration, sorbent amount, ion interfering effect, and the contact time onto the removal efficiency of the adsorbent was investigated systematically. The maximum adsorption efficiency (~ 97%) was found for the solutions with pH = 6, the best contact time was seen as 30 min for 50 mg L−1 of the analyte under the optimal conditions. The adsorbent was triumphantly used for the removal of Pb (II) ions from the three real water samples, including tap water, well water, and lake water with the removal efficiency of > 95%.","PeriodicalId":16523,"journal":{"name":"Journal of Nanostructures","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68412397","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}

引用次数: 0

CuMoO4/ ZnO Nanocomposites: Novel Synthesis, Characterization, and Photocatalytic Performance CuMoO4/ ZnO纳米复合材料:新型合成、表征及光催化性能

IF 1.4

Journal of Nanostructures Pub Date : 2021-01-01 DOI: 10.22052/JNS.2021.01.009

Rahmad Syah, Amjad Hussein Altajer, O. Rasheed, F. Tanjung, Aseel M. Aljeboree, N. A. Alrazzak, A. Alkaim

{"title":"CuMoO4/ ZnO Nanocomposites: Novel Synthesis, Characterization, and Photocatalytic Performance","authors":"Rahmad Syah, Amjad Hussein Altajer, O. Rasheed, F. Tanjung, Aseel M. Aljeboree, N. A. Alrazzak, A. Alkaim","doi":"10.22052/JNS.2021.01.009","DOIUrl":"https://doi.org/10.22052/JNS.2021.01.009","url":null,"abstract":"There are several sources of water contamination. One of the most important pollutant of water is azo dyes-based waste which produced by textile, paper and dye industrials. At this work, the morphological engineered CuMoO4/ ZnO Nanocomposites are prepared via simple and fast hydrothermal-microwave method and applied it as a photocaalyst for degradation of water pollutants. Prepared products is characterized with X-ray diffraction (XRD) analysis, Fourier-transform infrared spectroscopy (FT-IR), Scanning Electron Microscopy (SEM), Ultra violet-Visible (UV-Vis) spectroscopy. The results confirms that size and shape of prepared products is homogenous wih narrow size distribution. In the next step, prepared ZnO, CuMoO4, and ZnO/CuMoO4 nanocomposites were used as catalyst for photodegradation of methylene blue and Rhodamine B. Results showed that ZnO/CuMoO4 nanocomposites have excellent photocatalytic performance. Results indicated that prepared ZnO/CuMoO4 nanocomposites can be degraded 92 and 84% of methylene blue and Rhodamine B under UV irradiation after 70 minutes. The charge transfer from CuMoO4 to ZnO is confirmed by the optical characteristics of ZnO/CuMoO4 nanocomposites. As a result, the potential of electron-hole recombination in CuMoO4 decreases, resulting in holes in the valance band that combine with OH groups on the surface of nanocomposites to form highly reactive OH• radicals. The radicals are damaged when they come into contact with Rhodamine B and Methylene blue.","PeriodicalId":16523,"journal":{"name":"Journal of Nanostructures","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68411909","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}

引用次数: 1

Synthesis and Structural Properties of Eu3+:TiO2 Nanoparticles Eu3+:TiO2纳米颗粒的合成及结构性能

IF 1.4

Journal of Nanostructures Pub Date : 2021-01-01 DOI: 10.22052/JNS.2021.01.015

B. A. Jabar, H. M. Yaseen, M. A. Hamzah, K. J. Tahir, N. Ridha, F. Alosfur, Rajaa A. Madlol, Basheer M. Hussein

引用次数: 0

Synthesis of NiO Nanoparticles and Sulfur, and Nitrogen co Doped-Graphene Quantum Dots/ NiO Nanocomposites for Antibacterial Application 纳米NiO与硫、氮掺杂-石墨烯量子点/ NiO纳米复合材料的合成及其抗菌应用

IF 1.4

Journal of Nanostructures Pub Date : 2021-01-01 DOI: 10.22052/JNS.2021.01.019

S. G. Al-Shawi, N. Alekhina, S. Aravindhan, L. Thangavelu, Akulina Elena, N. V. Kartamysheva, R. Zakieva

{"title":"Synthesis of NiO Nanoparticles and Sulfur, and Nitrogen co Doped-Graphene Quantum Dots/ NiO Nanocomposites for Antibacterial Application","authors":"S. G. Al-Shawi, N. Alekhina, S. Aravindhan, L. Thangavelu, Akulina Elena, N. V. Kartamysheva, R. Zakieva","doi":"10.22052/JNS.2021.01.019","DOIUrl":"https://doi.org/10.22052/JNS.2021.01.019","url":null,"abstract":"The human life is faced with bacterial infections which are one of the major cause of prevalence and mortality. Antibiotics have long been the preferred therapy for bacterial infections due to their cost-effectiveness and efficacy. In the field of overcoming microbial issues, new and emerging nanostructure-based materials have gotten a lot of attention. In this Study, NiO and sulfur, and nitrogen co doped-graphene quantum dots-decorated NiO nanocomposites (S,N-GQDs/NiO) are prepared via a simple hydrothermal method. Structural and morphological properties of products are determined via XRD, SEM, UV-Vis, and FTIR analysis. The prepared products are applied for the investigation of antibacterial activity against Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, and methicillin resistant Staphylococcus aureus (MRSA). The results showed that prepared S,N-GQDs/NiO nanocomposites have high antibacterial activity against Staphylococcus aureus among a wide range of microorganisms. For S,N-GQDs/NiO nanocomposites nanoparticles, the disk diffusion test proved that the highest growth inhibition zone was related to Staphylococcus aureus (17 mm). The presence of graphene quantum dots in S,N-GQDs/NiO nanocomposites facilitates reactive oxygen species (ROS) mechanism which lead to bet antibacterial activity.","PeriodicalId":16523,"journal":{"name":"Journal of Nanostructures","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68412314","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}

引用次数: 53

Rutin: a Flavonoid Precursor for Synthesis of ZnFe2O4 Nanoparticles; Electrochemical Study of Zinc Ferrite-chitosan Nanogel for Doxorubicin Delivery 合成纳米ZnFe2O4的类黄酮前体芦丁铁酸锌-壳聚糖纳米凝胶递送阿霉素的电化学研究

IF 1.4

Journal of Nanostructures Pub Date : 2021-01-01 DOI: 10.22052/JNS.2021.01.013

Mostafa Shafiee, S. H. Ghoran, S. Bordbar, M. Gholami, M. Naderian, Fatemeh Dehghani, A. Amani

{"title":"Rutin: a Flavonoid Precursor for Synthesis of ZnFe2O4 Nanoparticles; Electrochemical Study of Zinc Ferrite-chitosan Nanogel for Doxorubicin Delivery","authors":"Mostafa Shafiee, S. H. Ghoran, S. Bordbar, M. Gholami, M. Naderian, Fatemeh Dehghani, A. Amani","doi":"10.22052/JNS.2021.01.013","DOIUrl":"https://doi.org/10.22052/JNS.2021.01.013","url":null,"abstract":"The use of core-shell nanoparticles as controlled drug delivery vehicles has proven successful, yet their production and application require costly and toxic chemicals. We hereby use a natural glycosylated flavonoid (rutin) for synthesis of a nanocarrier for doxorubicin delivery. For this target, a convenient two-step synthesis was processed including a synthesis of bio-zinc ferrite nanoparticles without N2 gas and chitosan coating (CS; bio-zincferrite@chitosan). The as-synthesized magnetic nanogel was characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transformed infrared (FT-IR) spectroscopy, and electro-analytical methods including cyclic voltammetry and electrochemical impedance spectroscopies. The collapse/swell potential of the coated CS layers of the bio-NPs were found to be responsible for the observed pH dependence of doxorubicin delivery. Results exhibited the drug release of bio-nanogel can be induced at pH ranging from 6 to 7. Therefore, capacity and efficiency parameters of the anti-cancer drug onto the NPs were obtained as equal to 43.5% and 78.6%. The present work provides a simple method to fabricate smart pH-responsive nanogel for cancer therapy.","PeriodicalId":16523,"journal":{"name":"Journal of Nanostructures","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68412296","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}

引用次数: 1

Study of the Physicochemical Properties and Antimicrobial Activities of Nanoparticles Containing β-Cyclodextrin and Geranial 含β-环糊精和香叶醛纳米颗粒的理化性质及抗菌活性研究

IF 1.4

Journal of Nanostructures Pub Date : 2021-01-01 DOI: 10.22052/JNS.2021.01.020

M. Maleki, Z. Hadian, K. Abdi, Paliz Koohy-Kamaly, F. Bahmanyar

{"title":"Study of the Physicochemical Properties and Antimicrobial Activities of Nanoparticles Containing β-Cyclodextrin and Geranial","authors":"M. Maleki, Z. Hadian, K. Abdi, Paliz Koohy-Kamaly, F. Bahmanyar","doi":"10.22052/JNS.2021.01.020","DOIUrl":"https://doi.org/10.22052/JNS.2021.01.020","url":null,"abstract":"In general, β-cyclodextrin (β-CD) is widely used in various technologies of the food industries. The aims of this study were preparation, characterization and optimization of a novel nanosize formulation of β-CD NPs loaded with GR. In the current study optimum conditions for maximum encapsulation efficiency and loading of geraniol using response surface methodology (RSM) was assessed. Furthermore, the in-vitro antimicrobial activities against S. aureus, B. cereus, S. enteritidis, E. coli, C. albicans and A. niger were studied. The present study is the first to investigate the antimicrobial activity of the GR inclusion complexes in nanosize formulations. The GR complexes were evaluated using scanning electron microscopy (SEM), infrared (IR) spectroscopy and differential scanning calorimetry (DSC). Furthermore, antimicrobial activity of the inclusion complexes (IC) against bacteria and fungi were assessed. Minimum inhibitory concentrations (MIC) and inhibition zones of the GR-β-CD inclusion complexes were calculated using agar/broth dilution and agar well-diffusion methods. The EE and loading values of the optimized formulation included 87.25 and 10.45%, respectively, with a size distribution of 117 nm ±1 and appropriate particle size distribution (PDI). Moreover, SEM, IR and DSC verified fabrication of inclusion complexes between GR and β-CD. The inhibition zones of β-CD-GR complexes were recorded as the following order: Bacillus cereus > Staphylococcus aureus > Salmonella entritidis > Escherichia coli. The RSM technique allowed to prepare geraniol nanoinclusion complexes using β-cyclodextrin with optimum responses. The antimicrobial activity of GR highly enhanced after efficient complexation. This study generates appropriate information for application of inclusion complexes of GR.","PeriodicalId":16523,"journal":{"name":"Journal of Nanostructures","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68412660","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}

引用次数: 0

Sonochemical Preparation of Magnesium Hydroxide and Aluminum Hydroxide Nanoparticles for Flame Retardancy and Thermal Stability of Cellulose Acetate and Wood 声化学法制备用于醋酸纤维素和木材阻燃和热稳定性的氢氧化镁和氢氧化铝纳米颗粒

IF 1.4

Journal of Nanostructures Pub Date : 2021-01-01 DOI: 10.22052/JNS.2021.01.004

Mahya Tamiji, Ali Reza Ahmadian-Fard-Fini, Manouchehr Behzadi, D. Ghanbari

引用次数: 1

Synthesis of CdSe and CdTe Quantum Dots: Their Effects on the Znq2 Luminescence Complex for Organic Light Emitting Diodes CdSe和CdTe量子点的合成及其对有机发光二极管Znq2发光配合物的影响

IF 1.4

Journal of Nanostructures Pub Date : 2021-01-01 DOI: 10.22052/JNS.2021.01.017

M. Jafari, Zeynab Sadat Alirahmi, D. Ghanbari

引用次数: 0