Scholarlink

<p>NiO/g-C<sub>3</sub>N<sub>4</sub> nanocomposites have been produced in this study using a co-precipitation technique. Throughout this study, NiO/g-C<sub>3</sub>N<sub>4</sub> NCs have been designated to act as an endpoint agent to develop the particles and carry out the processes of decreasing toxicity, enhancing stability, and inhibiting agglutination, respectively. FTIR, XRD, UV-DRS, SEM/EDX, BET, and HR-TEM analyses have been used to assess the phase studies, morphology, and structure of NiO/g-C<sub>3</sub>N<sub>4</sub> NCs. Furthermore, NiO/g-C<sub>3</sub>N<sub>4</sub> NCs photocatalytic effects on the degradation of methyl orange (MO) have been studied, and the results show that they have a lot of promise as UV photocatalysts. A cubic structure with an average crystallite size of 18&#xa0;nm is shown by XRD. At 470&#xa0;cm<sup>− 1</sup>, the nickel-oxygen bond’s vibrational stretching mode is detected. It is discovered that the optical energy bandgap value of NiO/g-C<sub>3</sub>N<sub>4</sub> NCs is 2.38&#xa0;eV. When NiO is coupled with n-type g-C<sub>3</sub>N<sub>4</sub>, a p–n heterojunction is formed at the interface. This heterojunction facilitates efficient charge separation and suppresses electron–hole recombination, which significantly enhances photocatalytic performance under visible-light irradiation. To overcome these drawbacks, coupling g-C<sub>3</sub>N<sub>4</sub> with suitable semiconductors such as NiO can effectively enhance light absorption, promote charge separation, and improve overall photocatalytic performance. With an outstanding degradation efficiency of 90.36%, NiO/g-C<sub>3</sub>N<sub>4</sub> NCs demonstrated the greatest photocatalytic degradation performance for MO dye. Applications for high-performance photocatalysis may employ these NCs materials. The fabrication of NiO/g-C<sub>3</sub>N<sub>4</sub> nanocomposites is driven by the need to enhance the photocatalytic efficiency of g-C<sub>3</sub>N<sub>4</sub>, which, despite being a promising visible-light photocatalyst, suffers from low surface area, limited visible-light absorption, and rapid recombination of photogenerated charge carriers. Graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) is an attractive, metal-free semiconductor with a moderate band gap (~ 2.7&#xa0;eV), high stability, and eco-friendly characteristics; however, its practical application in photocatalysis remains limited due to poor charge separation and transfer efficiency.</p> Graphical Abstract <p></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

Structural modification of g-C3N4 with NiO nanoparticles for superior photocatalytic removal of organic pollutants

  • 期刊论文

  • 发表日期：

    2025年12月17日

查看全文
  • S. Manikandan,
  • D. Sasikumar,
  • S. Seenivasan

摘要

NiO/g-C3N4 nanocomposites have been produced in this study using a co-precipitation technique. Throughout this study, NiO/g-C3N4 NCs have been designated to act as an endpoint agent to develop the particles and carry out the processes of decreasing toxicity, enhancing stability, and inhibiting agglutination, respectively. FTIR, XRD, UV-DRS, SEM/EDX, BET, and HR-TEM analyses have been used to assess the phase studies, morphology, and structure of NiO/g-C3N4 NCs. Furthermore, NiO/g-C3N4 NCs photocatalytic effects on the degradation of methyl orange (MO) have been studied, and the results show that they have a lot of promise as UV photocatalysts. A cubic structure with an average crystallite size of 18 nm is shown by XRD. At 470 cm− 1, the nickel-oxygen bond’s vibrational stretching mode is detected. It is discovered that the optical energy bandgap value of NiO/g-C3N4 NCs is 2.38 eV. When NiO is coupled with n-type g-C3N4, a p–n heterojunction is formed at the interface. This heterojunction facilitates efficient charge separation and suppresses electron–hole recombination, which significantly enhances photocatalytic performance under visible-light irradiation. To overcome these drawbacks, coupling g-C3N4 with suitable semiconductors such as NiO can effectively enhance light absorption, promote charge separation, and improve overall photocatalytic performance. With an outstanding degradation efficiency of 90.36%, NiO/g-C3N4 NCs demonstrated the greatest photocatalytic degradation performance for MO dye. Applications for high-performance photocatalysis may employ these NCs materials. The fabrication of NiO/g-C3N4 nanocomposites is driven by the need to enhance the photocatalytic efficiency of g-C3N4, which, despite being a promising visible-light photocatalyst, suffers from low surface area, limited visible-light absorption, and rapid recombination of photogenerated charge carriers. Graphitic carbon nitride (g-C3N4) is an attractive, metal-free semiconductor with a moderate band gap (~ 2.7 eV), high stability, and eco-friendly characteristics; however, its practical application in photocatalysis remains limited due to poor charge separation and transfer efficiency.

Graphical Abstract