Scholarlink

<p>Today, with population growth, some issues arise for humanity, such as global warming and energy shortage. In the context of addressing the pressing global challenges, semiconductor-based photocatalytic technology emerges as a promising avenue for harnessing solar energy to mitigate pollution. Semiconductors are capable of converting solar energy by photocatalysis without generating extra pollution. Semiconductor-based photocatalytic technology is economical, safe, renewable and clean. It has been widely used in several applications, such as CO<sub>2</sub> reduction, water splitting, organic pollutant degradation, bacteria disinfection, etc. Graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>), a visible light (VL) active material, has an inimitable 2D structure, excellent chemical and thermal stability, and adjustable photo/electronic band structure. Compared to conventional photocatalytic semiconductors, g-C<sub>3</sub>N<sub>4</sub> with <i>E</i>g of 2.7 eV has been introduced as a modern metal-free catalyst. Pristine g-C<sub>3</sub>N<sub>4</sub> has some disadvantages, such as low specific surface area and fast recombination of photo-generated species, leading to low quantum efficiency. Due to the proper electronic formation, the g-C<sub>3</sub>N<sub>4</sub> could be a promising option for adding to different functional structures to enhance efficiency. In addition to various doping and surface modification, morphology control such as porosity, 3D structure formation, quantum dotes, and so on can be applied to influence the performance of the graphitic carbon nitride. This critical review was focused on fabricating and modifying the morphologies of g-C<sub>3</sub>N<sub>4</sub> semiconductors to improve photocatalytic efficiency. Finally, we reviewed several applications of the modified g-C<sub>3</sub>N<sub>4</sub> semiconductor for organic pollutant degradation and bacteria disinfection.</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

A review on heterogeneous g-C3N4 for efficient treatment of contaminants: fabrication, morphology control and environmental application

  • 期刊论文

  • 发表日期：

    2025年1月7日

查看全文
  • A. G. Akerdi,
  • M. Mohsenzadeh,
  • K. Mahmoudian,
  • S. H. Bahrami

摘要

Today, with population growth, some issues arise for humanity, such as global warming and energy shortage. In the context of addressing the pressing global challenges, semiconductor-based photocatalytic technology emerges as a promising avenue for harnessing solar energy to mitigate pollution. Semiconductors are capable of converting solar energy by photocatalysis without generating extra pollution. Semiconductor-based photocatalytic technology is economical, safe, renewable and clean. It has been widely used in several applications, such as CO2 reduction, water splitting, organic pollutant degradation, bacteria disinfection, etc. Graphitic carbon nitride (g-C3N4), a visible light (VL) active material, has an inimitable 2D structure, excellent chemical and thermal stability, and adjustable photo/electronic band structure. Compared to conventional photocatalytic semiconductors, g-C3N4 with Eg of 2.7 eV has been introduced as a modern metal-free catalyst. Pristine g-C3N4 has some disadvantages, such as low specific surface area and fast recombination of photo-generated species, leading to low quantum efficiency. Due to the proper electronic formation, the g-C3N4 could be a promising option for adding to different functional structures to enhance efficiency. In addition to various doping and surface modification, morphology control such as porosity, 3D structure formation, quantum dotes, and so on can be applied to influence the performance of the graphitic carbon nitride. This critical review was focused on fabricating and modifying the morphologies of g-C3N4 semiconductors to improve photocatalytic efficiency. Finally, we reviewed several applications of the modified g-C3N4 semiconductor for organic pollutant degradation and bacteria disinfection.

Graphical abstract