Synthesis of hierarchical structured flower-like Ni(OH)2 and NiO and their application in waste water treatment

Zhang, Peipei; Ma, Xiaoming; Wang, Kui; Tao, Zhikai; Liu, Tao; Yang, Lin

doi:10.1049/mnl.2012.0345

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…We think the large adsorption capacity may be attributed to the special cavity of as-prepared NiO nanobiscuits, which own abundant adsorption sites, available channels for more mass transfer. The adsorption capacity of the present singlecrystalline NiO porous nanobiscuits is still lower than that of some reported 3D NiO hierarchical micro/nanostructures including porous flower-like architectures (223.8 mg g −1 ) [28], flower-like hierarchical structures (303 mg g −1 ) [36] and hollow microspheres (526.3 mg g −1 ) [37]. The main reason is possibly attributed to the special synergistic effect of hierarchical micro/nanostructures.…”

Section: Experimentcontrasting

confidence: 62%

Single‐crystalline porous NiO nanobiscuits with prompt adsorption activity for Congo red

Wang

Han

et al. 2017

Micro & Nano Letters

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Single-crystalline two-dimensional (2D) nickel oxide (NiO) porous nanobiscuits with diameters of 100-210 nm, thicknesses of 10-20 nm and pore sizes of <20 nm are fabricated through a low-cost water bath combined with calcination treatment approach. The composition and morphology of the products are characterised by X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy (TEM), high-resolution TEM, selected area electronic diffraction and N 2 adsorption/desorption. The possible formation mechanism of single-crystalline porous NiO nanobiscuits is simply discussed. Served as adsorbent, the as-prepared single-crystalline porous NiO nanobiscuits exhibited excellent performance for the fast removal of Congo red from water, which is far beyond the adsorption rate of activated carbon. The results show that the adsorption isotherm fits well with Langmuir adsorption model. The maximum adsorption capacity is calculated to be 193.2 mg g −1 , which is larger than that of other reported 2D NiO architectures.

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Section: Experimentcontrasting

confidence: 62%

Single‐crystalline porous NiO nanobiscuits with prompt adsorption activity for Congo red

Wang

Han

et al. 2017

Micro & Nano Letters

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“…However, in the past years, NiO was used as a gas sensing due to their high optical transparency and good electrical conductivity. So for, NiO have been widely investigated as thin films for optoelectronic and photovoltaic applications such as sensors 8 , fuel cell electrodes 9 , catalysis 10 , thermoelectric devices 11 , and dye-sensitized solar cells (DSSCs) 12 and electrochromic material for displays 13 . Wu Chia-Ching and Yang Cheng-Fu 14 investigated the effect of Li doping on structural, optical and electrical properties of Li doped NiO thin films by spray pyrolysis technique.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterizations of Monocrystalline Na Doped NiO Thin Films

et al. 2018

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In the present work, the effect of Na doping on optical, structural and electrical properties of Na doped NiO thin films were studied. The spray pneumatic method was used to deposit the Na doped NiO thin films in the range 0 to 5 wt.%, it are investigated at a substrate temperature of 420 °C with NiO solution 0.1 M. Firstly in the XRD specra, as found that a only (111) peak was observed for Na doped NiO thin film indicate that the Na doped NiO thin films a monocrystalline in nature with cubic structure. The maximum crystallite size of Na doped NiO thin films was 18.90 nm at 3 wt.%. Secondary, the optical transmissions spectra Na doped NiO thin films having a high transparency with comparing to undoped film in visible region. The band gap energy was decreased after doping by Na and reaching a minimum value is 3.53 eV at 2 wt.%. The minimum value of Urbach energy was 0.312 eV, it is obtained at 3 wt.%. In the end, the minimum electrical resistance of the Na doped NiO films was located at 5 wt.%. The optimum Na doping amount is achieved at 3 at %.

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Synthesis of nanostructured adsorbent and dye adsorption modeling by an intelligent model for multicomponent systems

Mahmoodi

Hosseinabadi-Farahani

Chamani

2016

Korean J. Chem. Eng.

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Synthesis of hierarchical structured flower-like Ni(OH)2 and NiO and their application in waste water treatment

Cited by 3 publications

References 10 publications

Single‐crystalline porous NiO nanobiscuits with prompt adsorption activity for Congo red

Single‐crystalline porous NiO nanobiscuits with prompt adsorption activity for Congo red

Preparation and Characterizations of Monocrystalline Na Doped NiO Thin Films

Synthesis of nanostructured adsorbent and dye adsorption modeling by an intelligent model for multicomponent systems

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