Nitrogen‐doped carbon dots from Kraft lignin waste with inorganic acid catalyst and their brain cell imaging applications

We demonstrate here a new Carbon quantum dots production process using lignin, a high-volume but low market-value industrial waste and/or environmental hazards, as the starting carbon source

Yixian Pei; An‐Yi Chang; Xuan Liu; Hua Wang; Hongbo Zhang; Adarsh Radadia; Yuxin Wang; William W. Yu; Shengnian Wang

2020

Scholarcy highlights

  • Carbon quantum dots show potential to replace traditional semiconductive quantum dots as the generation of fluorescent probes
  • We demonstrate here a new C-QD production process using lignin, a high-volume but low market-value industrial waste and/or environmental hazards, as the starting carbon source
  • By adding a small amount of inorganic acid, the rich phenolic components in lignin were successfully converted to C-QDs through a coking formation mechanism similar to what happens on solid acid catalysts in traditional fossil fuel cracking process
  • Their aqueous solution presence of the received lignin C-QDs is beneficial for brain cell imaging applications, attributing to their fast internalization, low toxicity, tunable photoluminescence by appropriate acidity and reaction temperature during hydrothermal synthesis
  • This method provides a low-cost C-QDs production route, and helps gain extra profit and/or improve environment for many small agricultural business and paper and pulp industry located in rural area
  • Any queries should be directed to the corresponding author for the article

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