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<p>This article mainly investigates the effects of sodium dodecyl sulfate (SDS), hexadecyltrimethylammonium bromide (CTAB), and polyvinylpyrrolidone (PVP) on the morphology and photocatalytic performance of nickel pyrophosphate (Ni<sub>2</sub>P<sub>2</sub>O<sub>7</sub>) nanomaterials. A series of nickel pyrophosphate nanomaterials were prepared using a simple hydrothermal method. With the increase of surfactant dosage, the morphology of Ni<sub>2</sub>P<sub>2</sub>O<sub>7</sub> (NP) nanomaterials gradually disperses, transforming from wheat-bundle-like swelling to needle-like flower clusters. Surfactants achieve stable dispersion of particle systems and reduce agglomeration phenomena through electrostatic interactions and steric hindrance effects, thereby improving the photocatalytic performance of NP nanomaterials. Photoelectrochemical tests indicate that NP-SDS 10&#xa0;mM has the optimal photocurrent density. The photocatalytic degradation results showed that NP-SDS 10&#xa0;mM sample had the highest degradation efficiency for tetracycline. The maximum degradation efficiency of NP-SDS 10&#xa0;mM for tetracycline was 70%, which was 2.4 times that of pure NP nanomaterials. This study provides a new approach to improve the photocatalytic performance of nanomaterials by adjusting their morphology through the addition of surfactants.</p>

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Study on the influence of surfactants on the morphology and properties of Ni2P2O7 nanomaterials

  • 期刊论文

  • 发表日期：

    2026年4月21日

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  • Kejie Zhang,
  • Wanping Li,
  • Hongyu Yuan,
  • Jiaxun Zhang,
  • Zhiping Zhou

摘要

This article mainly investigates the effects of sodium dodecyl sulfate (SDS), hexadecyltrimethylammonium bromide (CTAB), and polyvinylpyrrolidone (PVP) on the morphology and photocatalytic performance of nickel pyrophosphate (Ni2P2O7) nanomaterials. A series of nickel pyrophosphate nanomaterials were prepared using a simple hydrothermal method. With the increase of surfactant dosage, the morphology of Ni2P2O7 (NP) nanomaterials gradually disperses, transforming from wheat-bundle-like swelling to needle-like flower clusters. Surfactants achieve stable dispersion of particle systems and reduce agglomeration phenomena through electrostatic interactions and steric hindrance effects, thereby improving the photocatalytic performance of NP nanomaterials. Photoelectrochemical tests indicate that NP-SDS 10 mM has the optimal photocurrent density. The photocatalytic degradation results showed that NP-SDS 10 mM sample had the highest degradation efficiency for tetracycline. The maximum degradation efficiency of NP-SDS 10 mM for tetracycline was 70%, which was 2.4 times that of pure NP nanomaterials. This study provides a new approach to improve the photocatalytic performance of nanomaterials by adjusting their morphology through the addition of surfactants.