نتایج جستجو برای: nano fe2o3

تعداد نتایج: 54005  

Journal: :Nanoscale 2014
Xiaopeng Qi Guangwei She Xing Huang Taiping Zhang Huimin Wang Lixuan Mu Wensheng Shi

Many narrow band-gap semiconductors cannot fulfil the energetic requirements for water splitting, thus the assistance of large external voltages to complete the water decomposition reaction is required. Through thermal decomposition of Fe(NO3)3 on n-Si nanowires prepared by the chemical etching method, we fabricated a high-performance n-Si/α-Fe2O3 core/shell nanowire array photoanode that exhib...

2016
Mengmeng Rui Chuanxin Ma Yi Hao Jing Guo Yukui Rui Xinlian Tang Qi Zhao Xing Fan Zetian Zhang Tianqi Hou Siyuan Zhu

Nanomaterials are used in practically every aspect of modern life, including agriculture. The aim of this study was to evaluate the effectiveness of iron oxide nanoparticles (Fe2O3 NPs) as a fertilizer to replace traditional Fe fertilizers, which have various shortcomings. The effects of the Fe2O3 NPs and a chelated-Fe fertilizer (ethylenediaminetetraacetic acid-Fe; EDTA-Fe) fertilizer on the g...

Journal: :Catalysis Research 2022

In this study, we investigated the degradation of amido black dye in an aqueous solution using ultra-violet (UV) light catalyzed by iron oxide nanoparticles (nano-Fe). The nano-Fe was synthesized sodium borohydride reduction ferric chloride and characterized scanning electron microscopy (SEM), X-ray diffraction (XRD), fluorescence spectrophotometry (XRF). SEM showed regular spherical particles,...

Journal: :Processes 2023

Removal of phenol and phenolic compounds from wastewater using various techniques has received considerable attention in recent years. In this work, the removal a model solution via catalytic oxidation is investigated with oxidant H2O2. For purpose, we designed new nano-catalyst (8% Fe2O3/AC) by loading iron oxide nanoparticles over nano-activated carbon impregnation process. We modified recent...

2013
Wancheng Zhu Xili Cui Xiaofei Liu Liyun Zhang Jia-Qi Huang Xianglan Piao Qiang Zhang

Hollow or porous hematite (α-Fe2O3) nanoarchitectures have emerged as promising crystals in the advanced materials research. In this contribution, hierarchical mesoporous α-Fe2O3 nanoarchitectures with a pod-like shape were synthesized via a room-temperature coprecipitation of FeCl3 and NaOH solutions, followed by a mild hydrothermal treatment (120°C to 210°C, 12.0 h). A formation mechanism bas...

Journal: :Nanoscale 2014
Lin Gao Hao Hu Guojian Li Qiancheng Zhu Ying Yu

Hierarchical 3D TiO2@Fe2O3 nanoframework arrays grown on a Ti substrate are synthesized via a facile hydrothermal reaction. As the synergetic effect of this hybrid material, the TiO2@Fe2O3 electrode shows superior rate capability and cycling performance to bare TiO2 and Fe2O3 electrodes.

2010
Shao-Wen Cao Ying-Jie Zhu

A simple one-step NaCl-assisted microwave-solvothermal method has been developed for the preparation of monodisperse α-Fe2O3 mesoporous microspheres. In this approach, Fe(NO3)3 · 9H2O is used as the iron source, and polyvinylpyrrolidone (PVP) acts as a surfactant in the presence of NaCl in mixed solvents of H2O and ethanol. Under the present experimental conditions, monodisperse α-Fe2O3 mesopor...

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