![Quantitative SERS Detection of Uric Acid via Formation of Precise Plasmonic Nanojunctions within Aggregates of Gold Nanoparticles and Cucurbit[n]uril](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F61682.jpg&w=3840&q=50)
Outer surface interactions to drive cucurbit[8]uril-based supramolecular frameworks: possible application in gold
Li-Xia Chen1, Ming Liu, Yun-Qian Zhang
1Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China. gzutao@263.net.
Chemical Communications (Cambridge, England)
|November 13, 2019
Summary
Honeycomb-like frameworks using Q[8] can be synthesized in acidic solutions. These frameworks selectively capture gold tetrachloroanions ([AuCl4]-), offering a potential method for gold recovery.
Area of Science:
- Materials Science
- Inorganic Chemistry
- Nanotechnology
Background:
- Q[8] can form honeycomb-like frameworks.
- Frameworks can be synthesized in various aqueous acidic solutions.
Purpose of the Study:
- Investigate the formation of Q[8]-based frameworks.
- Explore the interaction between Q[8] and inorganic anions.
- Assess the potential for gold recovery using these frameworks.
Main Methods:
- Synthesis of Q[8]-based frameworks in aqueous HNO3 and HCl solutions.
- Characterization of framework structure and properties.
- Evaluation of framework selectivity for [AuCl4]- anions.
Main Results:
- Honeycomb-like frameworks were successfully obtained in [AuCl4]--free and [AuCl4]-containing acidic solutions.
- Outer surface interactions between Q[8] and planar anions ([AuCl4]-, NO3-) drive framework formation.
- The synthesized frameworks demonstrated high selectivity for capturing [AuCl4]-.
Conclusions:
- Q[8]-based frameworks can be synthesized under specific aqueous acidic conditions.
- Anion interactions are crucial for framework assembly.
- These frameworks show promise for developing efficient gold recovery processes.
