Synthesis and Photocatalytic Performance of Five Organic–Inorganic Hybrid Supramolecules with Chain-like Organic Cations for Tetracycline Degradation
In this paper, we synthesized a chain-like organic cation structure directing agent L·Cl<sub>2</sub> by reacting triethylenediamine with 1,2-bis(2-chloroethoxy)ethane. We then used a room temperature volatilization method to react L·Cl<sub>2</sub> with inorganic metal salts t...
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| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-02-01
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| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/30/4/817 |
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| Summary: | In this paper, we synthesized a chain-like organic cation structure directing agent L·Cl<sub>2</sub> by reacting triethylenediamine with 1,2-bis(2-chloroethoxy)ethane. We then used a room temperature volatilization method to react L·Cl<sub>2</sub> with inorganic metal salts to synthesize five organic–inorganic hybrid supramolecules: {[L][HgI<sub>4</sub>]} (<b>1</b>), {[L][CdI<sub>4</sub>]} (<b>2</b>), {[(L)(Cu<sub>2</sub>I<sub>3</sub>)]·[CuI<sub>2</sub>]CH<sub>3</sub>CN}<sub>n</sub> (<b>3</b>) {[L][CoCl<sub>3</sub>]<sub>2</sub>} (<b>4</b>), and {[L][Ce(NO<sub>3</sub>)<sub>5</sub>·(H<sub>2</sub>O)<sub>2</sub>]} (<b>5</b>) (L=1,1′-((ethane-1,2-diylbis(oxy))bis(ethane-2,1-diyl))bis(1,4-diazabicyclo [2.2.2]octan-1-ium) chloride). The compounds were characterized by X-ray diffraction, infrared spectroscopy, elemental analysis, and thermogravimetric analysis. Compounds <b>1</b>, <b>2</b>, and <b>5</b> are mononuclear anion compounds, while compound <b>3</b> is a 1D chain, and <b>4</b> is a binuclear anion compound. The results showed that 10 mg of compound <b>3</b> achieved 92.22% of tetracycline degradation efficiency in the initial TC solution pH = 7. The optimal conditions such as solution pH, catalyst dosage, and solution temperature for the photocatalytic degradation of TC wastewater by compound <b>3</b> were explored. Moreover, the photocatalytic degradation efficiency of compound <b>3</b> was above 86% each time after four cycles, indicating a good recyclability. The mechanism of photocatalytic degradation was also discussed. |
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| ISSN: | 1420-3049 |