Self-assembly nanostructures of one-dimensional antimony oxide and oxychloride

Tang, Jun-Jun; Wang, Yong; Jiao, Zheng; Wu, Minghong

doi:10.1016/j.matlet.2009.03.044

Cited by 16 publications

(9 citation statements)

References 20 publications

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“…S1 ). The above information shows that the initial pH value of the reactant plays a momentous role in the synthesis of Sb 4 O 5 Cl 2 crystallites, which is consistent with previously reported results 22 25 26 that the OH − have an important effect on the hydrolysis process. In this work, OH − are supplied by ammonia.…”

Section: Resultssupporting

confidence: 92%

“…As a semiconductor, Sb 4 O 5 Cl 2 has also been coupled with other photocatalyts to improve the photocatalytic performance for degradation of methyl orange2324. Sb 4 O 5 Cl 2 crystallites with various morphologies such as nanobelts, nanowires, nanowire-flower, bundles of nanowires, bundles of flakes and hollow prisms have been obtained by solution and hydrothermal methods222526. However, to the best of our knowledge, there are almost no reports about the preparation of Sb 4 O 5 Cl 2 hollow spheres through a facile template-free solution route.…”

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confidence: 99%

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pH-regulated template-free assembly of Sb4O5Cl2 hollow microsphere crystallites with self-narrowed bandgap and optimized photocatalytic performance

Yang

Huang

Cao

et al. 2016

Sci Rep

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Sb4O5Cl2 hollow microspheres with self-narrowed bandgap and optimized photocatalytic performances are synthesized via a facile template-free method. It is found that the crystal structure and morphology of Sb4O5Cl2 crystallites are strongly dependent on the pH values of precursors. Nano-sized irregular-cuboids assembled Sb4O5Cl2 micro-particles and hollow microspheres can be synthesized at pH 1 and 2, whereas individual Sb4O5Cl2 micro-belts become to form when the pH is higher than 3. The irregular-cuboids assembled Sb4O5Cl2 micro-particles and hollow microspheres exhibit self-narrowed bandgap and higher light absorption ability compared with individual Sb4O5Cl2 micro-belts. The photoelectrochemical measurements show that the assembled Sb4O5Cl2 hollow microsphere crystallites prepared at pH 2 exhibit enhanced carrier density, improved separation efficiency of electron-hole pairs and decreased electron-transfer resistance. As a result, the irregular-cuboids assembled Sb4O5Cl2 hollow microspheres prepared at pH = 2 exhibit the highest photocatalytic activity for the degradation of gaseous iso-propanol (IPA) and Rhodamine B (RhB) aqueous solution. The good photocatalytic activity of Sb4O5Cl2 sample prepared at pH = 2 may be caused by the synergistic effect of its higher light absorption, the decreased electron-transfer resistance, the suppressed recombination of photogenerated electrons and holes, and the increased surface area.

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Section: Resultssupporting

confidence: 92%

mentioning

confidence: 99%

pH-regulated template-free assembly of Sb4O5Cl2 hollow microsphere crystallites with self-narrowed bandgap and optimized photocatalytic performance

Yang

Huang

Cao

et al. 2016

Sci Rep

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“…To reach surface hydrophobicity, coating materials with specific micro-to nano-structures are usually needed. As an important member of the main group metal oxides, antimony trioxide (Sb2O3) is widely used in several and textile [23]. It is also functional as a catalyst in the polyester industry and indirect-gap semiconductor material with extraordinary optoelectronic…”

Section: Introductionmentioning

confidence: 99%

Phase and morphology controllable synthesis of superhydrophobic Sb2O3 via a solvothermal method

Zhu

Xiao

et al. 2017

Journal of Alloys and Compounds

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In this article, we report on a controllable synthesis of superhydrophobic Sb2O3 microcrystals via a solvothermal method assisted with the soluble inorganic Na2WO4 salt. Morphologies of the final products depend on the amount of the OHions adsorbed on Sb2O3 nanoplates. By varying the amount of NaOH, the octahedral Sb2O3 can be switched to microcrystals or microspindles. Reaction and formation mechanisms of Sb2O3 were also proposed, which may also benefit synthesis of other metal oxides with controllable morphology. Additionally, after modified by (Heptadecafluoro-1,1,2,2-tetradecyl) trimethoxysilane, the as-synthesized octahedral Sb2O3 microcrystals and Sb2O3 microspindles show superhydrophobic and excellent anticorrosion properties in acidic and basic circumstances.

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“…However, there is limited information available on the preparation of the various antimony oxychloride nanostructures using a mild and facile solution route. Currently, Sb 4 O 5 Cl 2 nanobelts [10], Sb 8 O 11 Cl 2 architectures such as nanobelts [10], nanowires, nanowire-flower, bundles of nanowires, nanobelts, bundles of flakes and hollow prisms [11], and needle-like Sb 8 6 with different morphologies in the presence of poly (vinyl pyrrolidone) (PVP) at room temperature. In our system, the shape evolution from sheaflike to rhombic-plate, oval leaf-like and quasi-wafer structures has been investigated using different concentrations of NaOH, which may influence the degree of crystal splitting during the reaction.…”

mentioning

confidence: 99%

Shape evolution of antimony oxychloride from sheaf-like to quasi-wafer structures

Zhou

Zhao

et al. 2011

Chin. Sci. Bull.

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Antimony oxychloride Sb 8 O 11 Cl 2 (H 2 O) 6 products with various morphologies including sheaf-like, rhombic-plate, oval leaf-like and quasi-wafer have been successfully synthesized via a mild and facile solution route at room temperature. The morphologies and structures of the as-prepared samples were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). A possible formation mechanism of these structures is proposed according to the experimental results and analysis.antimony oxychloride, sheaf-like, quasi-wafer, crystal splitting, shape evolution Citation:Zhou J, Zhao H W, Li L D, et al. Shape evolution of antimony oxychloride from sheaf-like to quasi-wafer structures.

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Self-assembly nanostructures of one-dimensional antimony oxide and oxychloride

Cited by 16 publications

References 20 publications

pH-regulated template-free assembly of Sb4O5Cl2 hollow microsphere crystallites with self-narrowed bandgap and optimized photocatalytic performance

pH-regulated template-free assembly of Sb4O5Cl2 hollow microsphere crystallites with self-narrowed bandgap and optimized photocatalytic performance

Phase and morphology controllable synthesis of superhydrophobic Sb2O3 via a solvothermal method

Shape evolution of antimony oxychloride from sheaf-like to quasi-wafer structures

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