Scholarlink

<p>In this study, Fuling Zhacai leaves (FLZ) were employed as a green biomass reductant for chromium reduction. The effects of mass ratio of FLZ to chromium (m(Z)/m(Cr)), reaction temperature and H<sub>2</sub>SO<sub>4</sub> dosage on the reduction efficiency of chromium were investigated. The results demonstrated that chromium reduction efficiency increased significantly with increasing m(Z)/m(Cr), reaction temperature, and H<sub>2</sub>SO<sub>4</sub> dosage. Nearly complete chromium reduction (100% efficiency) was achieved under following conditions: m(Z)/m(Cr) = 9.2, reaction temperature above 70 °C, and H<sub>2</sub>SO<sub>4</sub> dosage over 1.50&#xa0;mL. The FT-IR, XPS, and SEM–EDS characterization revealed that no covalent bonding or effective adsorption occurred between chromium and FLZ. Instead, a solution-mediated homogeneous redox process dominated: under acidic conditions, reducing components leached from FLZ reduced high-valent chromium ions in the liquid phase. This work demonstrated that FLZ was a low-cost, eco-friendly, and efficient biomass reductant, providing a theoretical basis for chromium-containing wastewater treatment.</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

Mechanisms and sustainable utilization of Cr(VI) reduction by Fuling Zhacai leaves

  • 期刊论文

  • 发表日期：

    2026年7月7日

查看全文
  • Teng Liu,
  • Qiuyan Wu,
  • Kexin Li,
  • Shengting Pu,
  • Xiao Wu,
  • Bing Li,
  • Hao Peng

摘要

In this study, Fuling Zhacai leaves (FLZ) were employed as a green biomass reductant for chromium reduction. The effects of mass ratio of FLZ to chromium (m(Z)/m(Cr)), reaction temperature and H2SO4 dosage on the reduction efficiency of chromium were investigated. The results demonstrated that chromium reduction efficiency increased significantly with increasing m(Z)/m(Cr), reaction temperature, and H2SO4 dosage. Nearly complete chromium reduction (100% efficiency) was achieved under following conditions: m(Z)/m(Cr) = 9.2, reaction temperature above 70 °C, and H2SO4 dosage over 1.50 mL. The FT-IR, XPS, and SEM–EDS characterization revealed that no covalent bonding or effective adsorption occurred between chromium and FLZ. Instead, a solution-mediated homogeneous redox process dominated: under acidic conditions, reducing components leached from FLZ reduced high-valent chromium ions in the liquid phase. This work demonstrated that FLZ was a low-cost, eco-friendly, and efficient biomass reductant, providing a theoretical basis for chromium-containing wastewater treatment.