Scholarlink

<p>NiWO<sub>4</sub>/ZnO/N-g-C<sub>3</sub>N<sub>4</sub> nanocomposite has been synthesized via hydrothermal method. The as-synthesized nanocomposite was characterized by various characterization techniques and examined for photocatalytic Rhodamine B dye (RhB) degradation under visible light illumination. By adopting the hydrothermal approach, it was possible to coat N-g-C<sub>3</sub>N<sub>4</sub> almost completely with moderately porous NiWO<sub>4</sub> and ZnO nanoparticles. XRD and FTIR analyses confirmed the successful synthesis of NiWO<sub>4</sub>/ZnO/N-g-C<sub>3</sub>N<sub>4</sub> nanostructure. The results showed that ZnO with a Wurtzite structure and a crystallite size of 80&#xa0;nm was successfully distributed on N-g-C<sub>3</sub>N<sub>4</sub> nanosheets. According to TEM analysis, the size of NiWO<sub>4</sub>/ZnO/N-g-C<sub>3</sub>N<sub>4</sub> particles is about 60.2&#xa0;nm with spherical and rod like forms. The BET/BJH results demonstrated that the NiWO<sub>4</sub>/ZnO/N-g-C<sub>3</sub>N<sub>4</sub> nanohybrid has a much larger specific surface area and disordered pore structure compared to the naked ZnO sample. The energy bandgap of NiWO<sub>4</sub>/ZnO/N-g-C<sub>3</sub>N<sub>4</sub> nanocomposite was about 2.78&#xa0;eV decreased from that of pure ZnO (3.2&#xa0;eV). A maximum of 95% photocatalytic degradation within 80&#xa0;min was reached. The photocatalyst showed acceptable recyclability after five reuse cycles. The promising photocatalytic activity of NiWO<sub>4</sub>/ZnO/N-g-C<sub>3</sub>N<sub>4</sub> may be due to the synergistic effect of NiWO<sub>4</sub> nanoparticles and N-g-C<sub>3</sub>N<sub>4</sub> nanosheets. The radical scavenging study confirmed the dominant role of the <sup>•</sup>OH species. The synthesized photocatalyst may open up wide application prospects such as solar cells, hydrogen production, gas sensing, etc.</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

Synthesis of N-g-C3N4 nanostructure loaded with NiWO4/ZnO: evaluation of physicochemical characteristics and photocatalytic potential

  • 期刊论文

  • 发表日期：

    2025年7月22日

查看全文
  • Rasha H. Albusalih,
  • Hassan A. Alshamsi

摘要

NiWO4/ZnO/N-g-C3N4 nanocomposite has been synthesized via hydrothermal method. The as-synthesized nanocomposite was characterized by various characterization techniques and examined for photocatalytic Rhodamine B dye (RhB) degradation under visible light illumination. By adopting the hydrothermal approach, it was possible to coat N-g-C3N4 almost completely with moderately porous NiWO4 and ZnO nanoparticles. XRD and FTIR analyses confirmed the successful synthesis of NiWO4/ZnO/N-g-C3N4 nanostructure. The results showed that ZnO with a Wurtzite structure and a crystallite size of 80 nm was successfully distributed on N-g-C3N4 nanosheets. According to TEM analysis, the size of NiWO4/ZnO/N-g-C3N4 particles is about 60.2 nm with spherical and rod like forms. The BET/BJH results demonstrated that the NiWO4/ZnO/N-g-C3N4 nanohybrid has a much larger specific surface area and disordered pore structure compared to the naked ZnO sample. The energy bandgap of NiWO4/ZnO/N-g-C3N4 nanocomposite was about 2.78 eV decreased from that of pure ZnO (3.2 eV). A maximum of 95% photocatalytic degradation within 80 min was reached. The photocatalyst showed acceptable recyclability after five reuse cycles. The promising photocatalytic activity of NiWO4/ZnO/N-g-C3N4 may be due to the synergistic effect of NiWO4 nanoparticles and N-g-C3N4 nanosheets. The radical scavenging study confirmed the dominant role of the •OH species. The synthesized photocatalyst may open up wide application prospects such as solar cells, hydrogen production, gas sensing, etc.