Synthesis of hexahydroxy strontium stannate nanorods for photocatalytic degradation of organic pollutants

Zhang, Xue; Li, Feiyang; Yu, Chunhu; Huang, Jianfeng; Tao, Feihu; Cai, Zhengyu; Pei, Lizhai

doi:10.1080/02772248.2021.1999453

Cited by 14 publications

(4 citation statements)

References 32 publications

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“…It has been reported that the content of the semiconductor photocatalysts has an important effect in photocatalytic activity for removal of organic pollutants [36]. The Ag-CaAlO content was controlled to be 250-1000 mg L −1 GV dye to analyze the influence of Ag-CaAlO content on GV degradation under sunlight irradiation (Figure S3 in Supplementary Material).…”

Section: (B)] Reaction Rate Constants K and Correlationmentioning

confidence: 99%

Significantly Enhanced Photocatalytic Performance of Ag-doped Calcium Aluminate under Visible-light Irradiation

Cong,

Sun,

Wang

et al. 2023

e-J. Surf. Sci. Nanotechnol.

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Ag-doped Ca aluminate with different Ag dopant content and polycrystalline structure were obtained via a direct one-step chemical approach using Ag acetate as Ag doping source. Agdoped Ca aluminate is composed of orthorhombic Ca 5 Al 6 O 14 and monoclinic CaAl 2 O 4 phases. The morphology transformation of Ag-doped Ca aluminate from nanoflakes to microscale and nanoscale particles closely depends on Ag dopant content. Ag doping effectively improves visible-light absorption ability and 8 wt% Ag-doped Ca aluminate exhibits the lowest band gap of 1.97 eV. Ag-doped Ca aluminate shows enhanced visible-light photocatalytic activity towards gentian violet than un-doped Ca aluminate under natural sunlight irradiation. 20 mL gentian violet solution (10 mg L −1 ) is totally degraded using 20 mg of 8 wt% Ag-doped Ca aluminate with sunlight irradiation for 30 min and reaction rate constant k of 0.034 min −1 . Visible-light photocatalytic activity is greatly enhanced by Ag doping owing to narrow band gap, low recombination efficiency of charge carriers, high charge transfer efficiency.

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Section: (B)] Reaction Rate Constants K and Correlationmentioning

confidence: 99%

Significantly Enhanced Photocatalytic Performance of Ag-doped Calcium Aluminate under Visible-light Irradiation

Cong,

Sun,

Wang

et al. 2023

e-J. Surf. Sci. Nanotechnol.

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“…Hydrothermal route without surfactants or templates provides a controllable, facile, environmentally friendly, low cost and scalable method for preparing nanoscale materials with different morphologies [19][20][21][22][23]. In this study, Nd vanadate nanowires (NdVONs) were controllably obtained via a facile hydrothermal approach using Nd trifluoromethanesulfonate and sodium vanadate.…”

Section: Introductionmentioning

confidence: 99%

Controllable Synthesis of Neodymium Vanadate Nanowires Electrocatalyst for Sensitive Pyrocatechol Sensing Performance

Cong,

Feng,

Zhang

et al. 2024

e-J. Surf. Sci. Nanotechnol.

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Pyrocatechol is a toxic substance which easily pollutes the environment and Nd vanadate nanowires (NdVONs) were developed for the electrochemical detection of pyrocatechol in the water environment. NdVONs were controllably synthesized via a facile hydrothermal approach using Nd trifluoromethanesulfonate and sodium vanadate. The formation mechanism of the NdVONs was investigated by controlling the synthesis parameters. The obtained nanowires possess single crystalline tetragonal NdVO 4 structure with a length of <10 µm and a diameter of 30-100 nm. There is a well-defined anodic peak at +0.12 V at the NdVON-modified electrode in 0.1 M phosphate buffer saline (PBS) electrolyte containing 1 mM pyrocatechol. The optimized measurement parameters for pyrocatechol detection including a pH value of PBS solution, a deposition time, a deposition potential, and a standing time are pH = 8, 60 s, +1.5 V, and 60 s, respectively. The NdVON-modified electrode indicates broad linear detection range of 0.01-1000 µM, a low limit of detection of 1.15 nM, a reliable stability, reproducibility, selectivity, and a practical application for pyrocatechol detection. The NdVONs are promising for pyrocatechol sensors.

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“…In this research, novel Nd vanadate nanoribbons were obtained via a facile chemical route. The hydrothermal approach is a facile strategy that provides one‐step, convenient, scalable production, with an environmentally friendly and low‐cost route for synthesizing different species of nanoscale materials 50‐54 . The formation mechanism of Nd vanadate nanoribbons was analyzed according to the role of synthesis conditions on structural and morphological change.…”

Section: Introductionmentioning

confidence: 99%

“…The hydrothermal approach is a facile strategy that provides one-step, convenient, scalable production, with an environmentally friendly and low-cost route for synthesizing different species of nanoscale materials. [50][51][52][53][54] The formation mechanism of Nd vanadate nanoribbons was analyzed according to the role of synthesis conditions on structural and morphological change. Electrochemical techniques were applied to evaluate the electrochemical behavior of the Nd vanadate nanoribbonmodified GCE.…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of neodymium vanadate nanoribbons and its application to highly efficient determination of cadmium ions

Cong,

Wang,

Feng

et al. 2023

J of Chemical Tech & Biotech

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BACKGROUNDCadmium ions may be discarded to the environment with living organisms from fossil fuel combustion, phosphate fertilizer and battery industries. It is urgent and essential to develop a sensitive and rapid method for monitoring Cd2+ level in aquatic environments and biological systems. Neodymium vanadate possesses good catalytic performance for the electrocatalysis of heavy metal ions. Single crystalline Nd vanadate nanoribbons were obtained by a facile approach and used as electrode materials for electrochemical detection of Cd2+.RESULTSThe Nd nanoribbons with tetragonal NdVO4 phase possess length, width and thickness of longer than 10 μm, 200 nm to 1.5 μm and 50 nm, respectively. Nd vanadate nanoribbons can serve as a good electron transfer interface. An anodic peak is located at +0.56 V at the Nd vanadate nanoribbon‐modified electrode in 0.1 mol L−1 KCl electrolyte containing 1 mmol L−1 Cd2+ by square wave voltammetry technique. The Nd vanadate nanoribbon‐modified electrode exhibits a linear range of 0.01–1000 μmol L−1 and a detection limit of 0.29 nmol L−1, with good stability, reproducibility and selectivity for Cd2+ detection.CONCLUSIONThe optimal measurement conditions including the pH value of the KCl solution, deposition time, deposition potential and standing time, which are pH 1, 180 s, −1.0 V and 60 s, respectively. The Nd vanadate nanoribbon‐modified electrode shows great application potential for detecting heavy metal ions in liquid environments. © 2023 Society of Chemical Industry.

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Synthesis of hexahydroxy strontium stannate nanorods for photocatalytic degradation of organic pollutants

Cited by 14 publications

References 32 publications

Significantly Enhanced Photocatalytic Performance of Ag-doped Calcium Aluminate under Visible-light Irradiation

Significantly Enhanced Photocatalytic Performance of Ag-doped Calcium Aluminate under Visible-light Irradiation

Controllable Synthesis of Neodymium Vanadate Nanowires Electrocatalyst for Sensitive Pyrocatechol Sensing Performance

Facile synthesis of neodymium vanadate nanoribbons and its application to highly efficient determination of cadmium ions

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