Scholarlink

<p>In this study, pure TiO<sub>2</sub> and 5 wt% BaTiO<sub>3</sub> nanocomposites were synthesized using the sol–gel method. The crystal structure, morphology, optical properties, and chemical composition of the synthesized nanoparticles were characterized by using XRD, SEM, HR-TEM, UV–vis spectroscopy, and XPS. The average crystallite sizes of the pure TiO<sub>2</sub> and 5 wt% BaTiO<sub>3</sub> were approximately 15.2&#xa0;nm and 8&#xa0;nm, respectively. Particle size is affected by the nature of the surfactant. Spherically shaped nanoparticles with aggregation and a homogeneous size distribution were observed using SEM and HR-TEM. The bandgap was determined to be 3.24&#xa0;eV and was found to have excellent optical behavior. The chemical and electronic states of the BaTiO<sub>3</sub> nanoparticles were determined by XPS. The nanoparticles photocatalytically degraded the Congo red dye in an aqueous solution. Compared to pure TiO<sub>2</sub> nanoparticles, 5 wt% BaTiO<sub>3</sub> nanoparticles with surfactant assistance demonstrated better photocatalytic activity.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Investigation of pure TiO2 and BaO-loaded TiO2 nanocomposites with enhanced photocatalytic activities

  • 期刊论文

  • 发表日期：

    2025年2月10日

查看全文
  • M. Anbuvannan,
  • V. Maria Vinosel,
  • P. Dhatshanamurthi,
  • S. Rajesh,
  • M. Ramesh,
  • N. Kannadasan

摘要

In this study, pure TiO2 and 5 wt% BaTiO3 nanocomposites were synthesized using the sol–gel method. The crystal structure, morphology, optical properties, and chemical composition of the synthesized nanoparticles were characterized by using XRD, SEM, HR-TEM, UV–vis spectroscopy, and XPS. The average crystallite sizes of the pure TiO2 and 5 wt% BaTiO3 were approximately 15.2 nm and 8 nm, respectively. Particle size is affected by the nature of the surfactant. Spherically shaped nanoparticles with aggregation and a homogeneous size distribution were observed using SEM and HR-TEM. The bandgap was determined to be 3.24 eV and was found to have excellent optical behavior. The chemical and electronic states of the BaTiO3 nanoparticles were determined by XPS. The nanoparticles photocatalytically degraded the Congo red dye in an aqueous solution. Compared to pure TiO2 nanoparticles, 5 wt% BaTiO3 nanoparticles with surfactant assistance demonstrated better photocatalytic activity.