Scholarlink

<p>The rapid growth of the integrated circuit (IC) industry has led to the generation of highly complex and challenging-to-treat wastewater streams. This work presents a sustainable paradigm for transforming metal-containing IC wastewater into efficient heterogeneous catalysts. As a proof of concept, Cu-rich IC wastewater is converted into a multifunctional Cu/SiO<sub>2</sub> catalyst via a simple ammonia-evaporation process, achieving up to 99.9% Cu recovery. The catalyst exhibits outstanding activity in the upcycling of various real-world polyethylene terephthalate (PET) wastes to p-xylene (PX) with near-quantitative yield (&gt;99.9%), surpassing commercial Cu/SiO<sub>2</sub>. The superior catalytic performance is attributed to the modulation of the catalyst structure by trace coexisting metals in the wastewater, which promote the formation of abundant Cu/CuO<sub>x</sub> interfacial sites, facilitating H<sub>2</sub> dissociation and C–O bond activation. Furthermore, this strategy also enables the complete transformation of Cu species onto other supports to construct various Cu-based catalysts. Overall, this work establishes a new paradigm for valorizing IC wastewater, which can be extended to other metal-containing wastewaters (e.g., Ni, Co, Pt), in alignment with the principles of green chemistry and the circular economy.</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

Integrating integrated circuit wastewater into the metal catalyst supply chain

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年3月15日

查看全文
  • Yifan Liu,
  • Wenyi Ni,
  • Kangjun Zhou,
  • Hongshun Ran,
  • Pengfei Zhou,
  • Yaxuan Jing,
  • Xinyi Cui

摘要

The rapid growth of the integrated circuit (IC) industry has led to the generation of highly complex and challenging-to-treat wastewater streams. This work presents a sustainable paradigm for transforming metal-containing IC wastewater into efficient heterogeneous catalysts. As a proof of concept, Cu-rich IC wastewater is converted into a multifunctional Cu/SiO2 catalyst via a simple ammonia-evaporation process, achieving up to 99.9% Cu recovery. The catalyst exhibits outstanding activity in the upcycling of various real-world polyethylene terephthalate (PET) wastes to p-xylene (PX) with near-quantitative yield (>99.9%), surpassing commercial Cu/SiO2. The superior catalytic performance is attributed to the modulation of the catalyst structure by trace coexisting metals in the wastewater, which promote the formation of abundant Cu/CuOx interfacial sites, facilitating H2 dissociation and C–O bond activation. Furthermore, this strategy also enables the complete transformation of Cu species onto other supports to construct various Cu-based catalysts. Overall, this work establishes a new paradigm for valorizing IC wastewater, which can be extended to other metal-containing wastewaters (e.g., Ni, Co, Pt), in alignment with the principles of green chemistry and the circular economy.