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Characterization and Application of Nanomaterials最新文献

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Synthesis and in Vitro anticancer properties of Cu2–xSe–AIPH nanomaterials Cu2-xSe-AIPH纳米材料的合成及其体外抗癌性能
Characterization and Application of Nanomaterials Pub Date : 2021-11-30 DOI: 10.24294/can.v5i1.1408
J. Lu, Yini Mao, Jun Yang
{"title":"Synthesis and in Vitro anticancer properties of Cu2–xSe–AIPH nanomaterials","authors":"J. Lu, Yini Mao, Jun Yang","doi":"10.24294/can.v5i1.1408","DOIUrl":"https://doi.org/10.24294/can.v5i1.1408","url":null,"abstract":"The Cu2–xSe nanoparticles were synthesized by high temperature pyrolysis, modified with aminated polyethylene glycol in aqueous solution and loaded with compound 2,2′–azobis[2–(2–imidazolin–2–yl)propane] dihydrochloride (AIPH). The obtained nanomaterials can induce photothermal effect and use heat to promote the generation of toxic AIPH radicals under the irradiation of near-infrared laser (808 nm), which can effectively kill cancer cells. A series of in vitro experiments can preliminarily prove that Cu2–xSe–AIPH nanomaterials have strong photothermal conversion ability, good biocompatibility and anticancer properties.","PeriodicalId":331072,"journal":{"name":"Characterization and Application of Nanomaterials","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128648788","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
Study on the preparation and antibacterial properties of CTAB-coated AuNPs ctab包被AuNPs的制备及其抗菌性能研究
Characterization and Application of Nanomaterials Pub Date : 2021-11-05 DOI: 10.24294/can.v5i1.1407
Yayun Ma, Mei Liu, Jiao Li, Xuanyi Li, Zongqi Yang
{"title":"Study on the preparation and antibacterial properties of CTAB-coated AuNPs","authors":"Yayun Ma, Mei Liu, Jiao Li, Xuanyi Li, Zongqi Yang","doi":"10.24294/can.v5i1.1407","DOIUrl":"https://doi.org/10.24294/can.v5i1.1407","url":null,"abstract":"In this paper, spherical gold nanoparticles (AuNPs), rod-shape AuNPs and triangular AuNPs were synthesized using CTAB as the coating reagent, and their bactericidal properties against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) were studied. By the plate count method and turbidity method, the minimum bactericidal concentrations (MBC) and the minimum bacteriostasis concentrations (MIC) to the two kinds of bacteria were determined. The MIC of rod-shape AuNPs, triangular AuNPs and spherical AuNPs to E. coli were 0.65 μg/mL, 3.71 μg/mL, 21.21 μg/mL, and MBC were 1.30 μg/mL, 11.09 μg/mL, 21.21 μg/mL, respectively. The MIC to S. aureus were 0.26 μg/mL, 0.56 μg/mL, 2.65 μg/mL, while MBC were 0.52 μg/mL, 1.11 μg/mL, 2.65 μg/mL, respectively. The results showed that the bactericidal effect of rod-shape AuNPs on E. coli and S. aureus was higher than that of the other two forms, and the bactericidal effect of three different forms of AuNPs on S. aureus was better than that on E. coli.","PeriodicalId":331072,"journal":{"name":"Characterization and Application of Nanomaterials","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124447788","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: 2
Research progress of nanoarray structure transport layers in perovskite solar cells 钙钛矿太阳能电池纳米阵列结构传输层的研究进展
Characterization and Application of Nanomaterials Pub Date : 2021-11-01 DOI: 10.24294/can.v4i2.1324
F. Tan, Shan Cong, Qinghua Yi, Zhida Han, Yushen Liu
{"title":"Research progress of nanoarray structure transport layers in perovskite solar cells","authors":"F. Tan, Shan Cong, Qinghua Yi, Zhida Han, Yushen Liu","doi":"10.24294/can.v4i2.1324","DOIUrl":"https://doi.org/10.24294/can.v4i2.1324","url":null,"abstract":"The electron/hole transport layer can promote charge transfer and improve device performance, which is used in perovskite solar cells. The nanoarray structure transport layers can not only further promote carrier transport but also reduce recombination. It also has a great potential in enhancing perovskite light absorption, improving device stability and inhibiting the crack nucleation of different structure layers in perovskite solar cells. This paper reviewed the research progress of perovskite solar cells with different nanoarray structure transport layers. The challenges and development directions of perovskite solar cells based on nanoarray structure transport layers are also summarized and prospected. ","PeriodicalId":331072,"journal":{"name":"Characterization and Application of Nanomaterials","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115640593","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
Preparation and characterization of branched micro/nano Se 支化微纳硒的制备与表征
Characterization and Application of Nanomaterials Pub Date : 2021-11-01 DOI: 10.24294/can.v4i2.1337
Yongjun Wu
{"title":"Preparation and characterization of branched micro/nano Se","authors":"Yongjun Wu","doi":"10.24294/can.v4i2.1337","DOIUrl":"https://doi.org/10.24294/can.v4i2.1337","url":null,"abstract":"Branched micro/nano Se was prepared by the redaction of L-Cys•HCl and H2SeO3 in hydrothermal method, as β-CD was used as soft template. The structures of products were characterized by SEM, TEM and XRD. Some important factors influencing the morphology of products were studied and discussed, including the amounts of soft template, the reaction temperature and the reaction time. The results showed that external causes had a potent effect on the morphology of micro/nano Se. The uniform branched micro/nano Se prepared under the optimal reaction condition was rhombohedral trigonal selenium t-Se0, but its crystallinity degree was low.","PeriodicalId":331072,"journal":{"name":"Characterization and Application of Nanomaterials","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122604249","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
Liquid deposition modification of nano-ZSM-5 zeolite and catalytic performance in aromatization of Hexene-1 纳米zsm -5沸石的液相沉积改性及其对己烯-1芳构化的催化性能
Characterization and Application of Nanomaterials Pub Date : 2021-11-01 DOI: 10.24294/can.v4i1.1330
Yujun Fang, X. Su, W. Wang, Wei Wu
{"title":"Liquid deposition modification of nano-ZSM-5 zeolite and catalytic performance in aromatization of Hexene-1","authors":"Yujun Fang, X. Su, W. Wang, Wei Wu","doi":"10.24294/can.v4i1.1330","DOIUrl":"https://doi.org/10.24294/can.v4i1.1330","url":null,"abstract":"The Olefin aromatization is an important method for the upgrade of catalytic cracking (FCC) gasoline and production of fuel oil with high octane number. The nano-ZSM-5 zeolite was synthesized via a seed-induced method, a series of modified nano-ZSM-5 zeolite samples with different Ga deposition amount were prepared by Ga liquid deposition method. The XRD, N2 physical adsorption, SEM, TEM, XPS, H2-TPR and Py-IR measurements were used to characterize the morphology, textural properties and acidity of the modified ZSM-5 zeolites. The catalytic performance of the Hexene-1 aromatization was evaluated on a fixed-bed microreactor. The effects of Ga modification on the physicochemical and catalytic performance of nano-ZSM-5 zeolites were investigated. The Ga species in the modified nano-ZSM-5 zeolites mainly exist as the form of Ga2O3 and GaO+, which provide strong Lewis acid sites. The aromatics selectivity over Ga modified nano-ZSM-5 zeolite in the Hexene-1 aromatization was significantly increased, which could be attributed to the improvement of the dehydrogenation activity. The selectivity for aromatics over the Ga4.2/NZ5 catalyst with suitable Ga deposition amount reached 55.4%.","PeriodicalId":331072,"journal":{"name":"Characterization and Application of Nanomaterials","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133449953","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
Synthesis of titania fibers by electrospinning and its photocatalytic degradation properties 静电纺丝法合成二氧化钛纤维及其光催化降解性能
Characterization and Application of Nanomaterials Pub Date : 2021-11-01 DOI: 10.24294/can.v4i1.1329
Y. Lv, Feng Chen, Yuan-Zheng Tang, Zhigang Chen
{"title":"Synthesis of titania fibers by electrospinning and its photocatalytic degradation properties","authors":"Y. Lv, Feng Chen, Yuan-Zheng Tang, Zhigang Chen","doi":"10.24294/can.v4i1.1329","DOIUrl":"https://doi.org/10.24294/can.v4i1.1329","url":null,"abstract":"The electrospinning precursor solution was prepared by dissolving polyvinyl pyrrolidone as template, tetrabutyl titanate as titanium source, and acetic acid as inhibitor. The TiO2 nanofilms were prepared by precursor solution electrospinning and subsequent calcination. Thermal gravimetric analysis (TG), scanning electron microscopy (SEM), X-ray powder diffraction (XRD), and transmission electron microscopy (TEM) were used to characterize and analyze the samples. The influence of technological parameters on spinning fiber morphology was also studied. The results indicate that the TiO2 nanofibers morphology is good when the parameters are as follows: voltage 1.4×104 V，spinning distance 0.2 m，translational velocity 2.5×10-3 m·s-1, flow rate 3×10-4 m·s-1, and needle diameter 3×10-4 m. The diameter of the fibers is about 150 nm. With the 1×10-4 mol·L-1 methylene blue solution used as simulated degradation target, the degradation rate is 95.8% after 180 minutes.","PeriodicalId":331072,"journal":{"name":"Characterization and Application of Nanomaterials","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132023814","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
Spin thermoelectric effects of new-style one-dimensional carbon-based nanomaterials 新型一维碳基纳米材料的自旋热电效应
Characterization and Application of Nanomaterials Pub Date : 2021-11-01 DOI: 10.24294/can.v4i1.1323
Yushen Liu, Jinfu Feng, Xuefeng Wang
{"title":"Spin thermoelectric effects of new-style one-dimensional carbon-based nanomaterials","authors":"Yushen Liu, Jinfu Feng, Xuefeng Wang","doi":"10.24294/can.v4i1.1323","DOIUrl":"https://doi.org/10.24294/can.v4i1.1323","url":null,"abstract":"Based on first-principles methods, the authors of this paper investigate spin thermoelectric effects of one-dimensional spin-based devices consisting of zigzag-edged graphene nanoribbons (ZGNRs), carbon chains and graphene nanoflake. It is found that the spin-down transmission function is suppressed to zero, while the spin-up transmission function is about 0.25. Therefore, an ideal half-metallic property is achieved. In addition, the phonon thermal conductance is obviously smaller than the electronic thermal conductance. Meantime, the spin Seebeck effects are obviously enhanced at the low-temperature regime (about 80K), resulting in the fact that spin thermoelectric figure of merit can reach about 40. Moreover, the spin thermoelectric figure of merit is always larger than the corresponding charge thermoelectric figure of merit. Therefore, the study shows that they can be used to prepare the ideal thermospin devices.","PeriodicalId":331072,"journal":{"name":"Characterization and Application of Nanomaterials","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131761117","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
Electrospun Li3V2(PO4)3/carbon nanofiber as cathode materials for the high-performance lithium-ion batteries 电纺Li3V2(PO4)3/碳纳米纤维作为高性能锂离子电池正极材料
Characterization and Application of Nanomaterials Pub Date : 2021-11-01 DOI: 10.24294/can.v4i2.1331
Mengxi Zhao, Zhongpei Lu, Lin Chen, Xuefan Jiang, F. Yin, Gang Yang
{"title":"Electrospun Li3V2(PO4)3/carbon nanofiber as cathode materials for the high-performance lithium-ion batteries","authors":"Mengxi Zhao, Zhongpei Lu, Lin Chen, Xuefan Jiang, F. Yin, Gang Yang","doi":"10.24294/can.v4i2.1331","DOIUrl":"https://doi.org/10.24294/can.v4i2.1331","url":null,"abstract":"In this paper, a series of Li3V2(PO4)3/C composite nanofibers is prepared by a facile and environmentally friendly electrospinning method and calcined under different temperatures. The LVP nanofiber calcined under 900 ℃ exhibits the best electrochemical performance. The bicontinuous morphologies of LVP/CNF are the fibers shrunk and the LVP crystals simultaneously grown. At the range of 3.0–4.3 V, LVP/CNF obtained under 900 ℃ delivers the initial capacity of 135 mAh/g, close to the theoretical capacity of LVP. Even at high current density, the sample of LVP/CNF still presents good electrochemical performance.","PeriodicalId":331072,"journal":{"name":"Characterization and Application of Nanomaterials","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124930155","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
Influence of flow rate on the transport of nTiO2 and phosphate and its modeling 流速对nTiO2和磷酸盐输运的影响及其模拟
Characterization and Application of Nanomaterials Pub Date : 2021-11-01 DOI: 10.24294/can.v4i1.1328
Gang Feng, N. Xu, Zuling Li, Yuhe Cao, Keqin Sun
{"title":"Influence of flow rate on the transport of nTiO2 and phosphate and its modeling","authors":"Gang Feng, N. Xu, Zuling Li, Yuhe Cao, Keqin Sun","doi":"10.24294/can.v4i1.1328","DOIUrl":"https://doi.org/10.24294/can.v4i1.1328","url":null,"abstract":"We studied Zeta potentials of nanoparticles titanium dioxides （nTiO2） in different concentration of NaNO3 and phosphate (P) solutions. In addition, the effect of flow rate on the transport of nTiO2 in P was investigated at pH＝6.5. Experimental results show that the Zeta potential of nTiO2 is compressed with the increasing ion concentration (IC) of NaNO3 at pH＝6.5. The negative charge increases with the augment of P. Therefore, the high P and low NaNO3 induce the stabilization of nTiO2 aggregates. The transport experiments suggest that the rapid flow rate is favorable for the transportability of nTiO2 and soluble phosphate. The breakthrough transport curves (BTCs) of nTiO2 in sand columns can be fitted well with two-site kinetic attachment model. The modeling results suggest that the values of first-order attachment rate coefficients (k2) and detachment rate coefficients (k2d) on site 2 and first-order attachment rate coefficients (k1) on site 1 are responsible to the attaching efficiency of nTiO2 on sands and their transportability.","PeriodicalId":331072,"journal":{"name":"Characterization and Application of Nanomaterials","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115057719","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
Review of super-hydrophobic materials research 超疏水材料研究综述
Characterization and Application of Nanomaterials Pub Date : 2021-11-01 DOI: 10.24294/can.v4i2.1334
Chengbao Liu, Minjiao Li, Xiaojie Liu, Zhigang Chen
{"title":"Review of super-hydrophobic materials research","authors":"Chengbao Liu, Minjiao Li, Xiaojie Liu, Zhigang Chen","doi":"10.24294/can.v4i2.1334","DOIUrl":"https://doi.org/10.24294/can.v4i2.1334","url":null,"abstract":"We reviewed the research on super-hydrophobic materials. Firstly, we introduced the basic principles of super-hydrophobic materials, including the Young equation, Wenzel model, and Cassie model. Then, we summarized the main preparation methods and research results of super-hydrophobic materials, such as the template method, soft etching method, electrospinning method, and sol-gel method. Among them, the electrospinning method that has developed in recent years is a new technology for preparing micro/nanofibers. Finally, the applications of super-hydrophobic materials in the field of coatings, fabric and filter material, anti-fogging, and antibacterial were introduced, and the problems existing in the preparation of super-hydrophobic materials were pointed out, such as unavailable industrialized production, high cost, and poor durability of the materials. Therefore, it is necessary to make a further study on the application of the materials in the selection, preparation, and post-treatment.","PeriodicalId":331072,"journal":{"name":"Characterization and Application of Nanomaterials","volume":"210 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115122292","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
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