Scholarlink

<p>Air pollution with carbonaceous greenhouse gases as CO&amp;CO₂ is strongly impacting the atmospheric environment. Consequently, the capturing process of CO&amp;CO₂ and their conversion reactions into valuable and sustainable products as fuel and other materials are representing a great challenge. Therefore, the current investigation is devoted to develop a novel nanocomposite for adsorptive conversion of CO&amp;CO₂ gases into urea. An innovative nanocomposite was synthesized from the combination of Fullers earth clay (Pal<sub>500</sub>) with iodine pentoxide (I<sub>2</sub>O<sub>5</sub>) and hydrazine hydrate (N<sub>2</sub>H<sub>4</sub>) to form Pal<sub>500</sub>@I<sub>2</sub>O<sub>5</sub>/N<sub>2</sub>H<sub>4</sub>. The as-prepared nanocomposite was optimized to simultaneously capture CO&amp;CO₂ and convert them into urea by applying a real industrial flue gas sample at 25&#xa0;°C and high CO&amp;CO₂ pressure. The initial step was related to capture and oxidative conversion of CO into CO<sub>2</sub> by the directive adsorptive reaction with the loaded I<sub>2</sub>O<sub>5</sub> onto Pal<sub>500</sub>@I<sub>2</sub>O<sub>5</sub>/N<sub>2</sub>H<sub>4</sub>. The second step was focused on the efficient adsorptive binding of CO<sub>2</sub> on the surface of this nanocomposite. The third step is based on the instantaneous conversion of CO&amp;CO₂ into urea. The adsorptive binding of CO&amp;CO₂ was 95.43% and this was followed by 88.0% conversion to urea upon application of a lower gas flow rate at 2.0 mL/min.</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

Capture and conversion of carbon oxides (CO&CO2) into urea by an innovative nanocomposite of doped iodine pentoxide and hydrazine hydrate onto Fullers earth clay

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年5月12日

查看全文
  • Gehan M. Nabil,
  • Mohammed K. Obada,
  • Mohamed E. Mahmoud

摘要

Air pollution with carbonaceous greenhouse gases as CO&CO₂ is strongly impacting the atmospheric environment. Consequently, the capturing process of CO&CO₂ and their conversion reactions into valuable and sustainable products as fuel and other materials are representing a great challenge. Therefore, the current investigation is devoted to develop a novel nanocomposite for adsorptive conversion of CO&CO₂ gases into urea. An innovative nanocomposite was synthesized from the combination of Fullers earth clay (Pal500) with iodine pentoxide (I2O5) and hydrazine hydrate (N2H4) to form Pal500@I2O5/N2H4. The as-prepared nanocomposite was optimized to simultaneously capture CO&CO₂ and convert them into urea by applying a real industrial flue gas sample at 25 °C and high CO&CO₂ pressure. The initial step was related to capture and oxidative conversion of CO into CO2 by the directive adsorptive reaction with the loaded I2O5 onto Pal500@I2O5/N2H4. The second step was focused on the efficient adsorptive binding of CO2 on the surface of this nanocomposite. The third step is based on the instantaneous conversion of CO&CO₂ into urea. The adsorptive binding of CO&CO₂ was 95.43% and this was followed by 88.0% conversion to urea upon application of a lower gas flow rate at 2.0 mL/min.