نتایج جستجو برای: nano bi2o3

تعداد نتایج: 51219  

2012
Zhenhuan Zhao Jian Tian Dongzhou Wang Xueliang Kang Yuanhua Sang Hong Liu Jiyang Wang Shaowei Chen Robert I. Boughton Huaidong Jiang

Surface engineering of TiO2 nanobelts by the controlled assembly of functional heterostructures represents an effective approach for the synthesis of high-performance photocatalysts. In this study, we prepared a novel Bi2O3/Bi4Ti3O12/TiO2 double-heterostructured nanobelt by depositing bismuth hydroxide onto the TiO2 nanobelt surface. A thermal annealing treatment led to the formation of a Bi4Ti...

2017
Govintha Viruthagiri Palanisamy Kannan

Herein, we suggest a novel chemical precipitation method to prepare different concentrations (0.05–0.25 M) of cobalt doped Bi2O3 nanoparticles. The prepared products exhibit excellent structural and optical properties. The influence of doping on the morphology of Bi2O3 was analyzed by FE-SEM and confirmed by HR-TEM. Furthermore, the photocatalytic activities of the samples were studied in the d...

2017
Fengyi Du Jiaming Lou Rong Jiang Zhengzou Fang Xuefen Zhao Yuanyuan Niu Shenqiang Zou Miaomiao Zhang Aihua Gong Chaoyang Wu

The inherent radioresistance and inaccuracy of localization of tumors weaken the clinical implementation effectiveness of radiotherapy. To overcome these limitations, hyaluronic acid-functionalized bismuth oxide nanoparticles (HA-Bi2O3 NPs) were synthesized by one-pot hydrothermal method for target-specific computed tomography (CT) imaging and radiosensitization of tumor. After functionalizatio...

Journal: :Oriental journal of chemistry 2023

The Chenopodium album extracts served as a capping agent in the present work to synthesize Bi2O3 Nps. synthesized nanoparticles were confirmed by various spectroscopic techniques. Nano-structured was measured have mean size of 79.99nm. Anti-fungal activity Nps also evaluated. been shown impressive antifungal efficacy against variety fungal species. It's powerful anti-fungal medication that outp...

Journal: :Journal of The European Ceramic Society 2021

Controlling the grain growth and boundary morphology is of great importance in manipulation electrical properties electro-ceramics. However, it has been a challenge to achieve dense varistor ceramics with sizes submicrons nanometers using conventional thermal sintering at high temperatures. Here we present strategy fabricate ZnO based controlled thin boundaries cold process (CSP). With CSP, tem...

In the present work, ZnO/Bi2O3, SnO2/Bi2O3/Bi2O4 mixed oxide, Bi2O3 rod-like and SnO2 nanoparticle have been synthesized. The obtained samples were characterized by field emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD). The optical properties of samples were evaluated by UV-Vis spectrophotometer. The photocatalytic activity of samples was evaluated by decolorization o...

2014
Yue-Lin Li Ta-Chih Cheng Ying-Chieh Lee

The effects of microwave sintering on the sintering behaviour, microstructure and dielectric properties of Bi2O3doped (Ba0.6Sr0.4)(Ti0.94Cu0.06)O3 (BSTC) ceramics were investigated. The microstructure and dielectric properties of a BSTC ceramic were also studied given different amounts of Bi2O3 doping. Microwave heating with sintering temperatures below 1000 ̊C significantly improves the densifi...

2017
Lijun Cheng Liang Hao Yun Lu Charles C. Sorrell

To overcome the recovery disadvantages of Bi2O3 photocatalyst in the form of powder, Bi2O3 photocatalyst coatings were developed via a ball milling, followed by the calcination method. The composition and structure evolution rules of the as-synthesized samples were analyzed based on XRD (X-ray powder diffraction) patterns and SEM (scanning electron microscope) observations. XPS (X-ray photoelec...

2000
Jeffrey L. Grabowski David C. Dunand

Bi2O3 is an excellent ceramic candidate for transformation-mismatch plasticity because of its low melting point, its allotropic nature and the rapid creep rate of its high-temperature d-phase. Transformation-mismatch plasticity, which has been reported in many polymorphic metals, alloys and composites [1], is a deformation mechanism taking place during a phase transformation: internal mismatch ...

Journal: :Nanoscale 2014
Fan Qin Huiping Zhao Guangfang Li Hao Yang Ju Li Runming Wang Yunling Liu Juncheng Hu Hongzhe Sun Rong Chen

Multifunctional Bi2O3 porous nanospheres (PNs) with tunable size have been successfully synthesized via a facile solvothermal method. The obtained Bi2O3 porous nanospheres demonstrate outstanding performance in visible-light-driven photocatalysis for Cr(VI) and organic dye removal, inactivation of Gram-negative and Gram-positive bacteria, as well as template-synthesis for fabrication of bismuth...

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