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<p>Semiconductor/graphene allotropes have shown remarkable performance in energy applications in recent years. Efficient visible-light-performance SnS/MWCNT photocatalytic heterostructured nanomaterials were prepared using a simple ultrasonic technique. A tetragonal MWCNT crystal structure and an orthorhombic SnS crystal structure were identified in the composite material through structural research. The uniformly distributed 5&#xa0;nm SnS nanoparticles on the MWCNT nanosheet surface were visible in TEM images.The addition of SnS nanoparticles to MWCNT resulted in improved visible-light absorption, as proven by UV-vis absorption spectroscopy tests, highlighting its technological significance. The composites produced greater supercapacitance of 1611.89&#xa0;F/g, 1523.89&#xa0;F/g, and 1453.2&#xa0;F/g for 0.5&#xa0;A/g current density for various concentrations of MWCNT, according to electrochemical measurements. The higher efficiency of 13.1% was evident in photovoltaic experiments using the nanocomposite.It also exhibited an excellent photodegradation efficiency of about 90%. It was found that the nanocomposite’s efficiency was greater than that of pure SnS and MWCNT.</p>

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Improved performance of SnS/MWCNT heterostructures for photocatalytic, energy generation and supercapacitors applications

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月2日

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  • P. Sakthi,
  • J. Uma,
  • B. Balraj,
  • K. Arulvendhan

摘要

Semiconductor/graphene allotropes have shown remarkable performance in energy applications in recent years. Efficient visible-light-performance SnS/MWCNT photocatalytic heterostructured nanomaterials were prepared using a simple ultrasonic technique. A tetragonal MWCNT crystal structure and an orthorhombic SnS crystal structure were identified in the composite material through structural research. The uniformly distributed 5 nm SnS nanoparticles on the MWCNT nanosheet surface were visible in TEM images.The addition of SnS nanoparticles to MWCNT resulted in improved visible-light absorption, as proven by UV-vis absorption spectroscopy tests, highlighting its technological significance. The composites produced greater supercapacitance of 1611.89 F/g, 1523.89 F/g, and 1453.2 F/g for 0.5 A/g current density for various concentrations of MWCNT, according to electrochemical measurements. The higher efficiency of 13.1% was evident in photovoltaic experiments using the nanocomposite.It also exhibited an excellent photodegradation efficiency of about 90%. It was found that the nanocomposite’s efficiency was greater than that of pure SnS and MWCNT.