Shangjie Zhao
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Shangjie Zhao has a total of 9 co-authors. Here are the top co-authors by number of shared publications:
- Jing Zhao
China Institute of Atomic Energy,Beijing,China, China
1 shared publication - Jinping Liu
China Institute of Atomic Energy,Beijing,China, China
1 shared publication - Ke Ma
China Institute of Atomic Energy,Beijing,China, China
1 shared publication - Ke Wang
China Institute of Atomic Energy, Beijing, China, China
1 shared publication - Long Chen
China Institute of Atomic Energy,Beijing,China, China
1 shared publication - Songtao Xiao
China Institute of Atomic Energy,Beijing,China, China
1 shared publication
Latest Publications
- Open Access
- 30 April 2026
- Published by MDPI AG in Preprints.org
Thiophene-Integrated Porphyrin COF with N-S Synergistic Sites for Efficient and Selective Thorium (IV) Capture
The removal of thorium from contaminated water sources is crucial for environmental protection and nuclear waste management. Herein, we present a dual-strategy design of a thiophene-integrated porphyrin covalent organic framework (TAPP-BTD-COF) that combines rigid macrocyclic scaffolds with flexible thiophene linkages, incorporating complementary N and S donor sites. This tailored COF achieves efficient and selective capture of Th(IV) from acidic aqueous solutions. By leveraging the topological arrangement of the porphyrin core to modulate the conformation of thiophene-based connectors, a coordination environment with N–S synergistic sites is created, which significantly enhances Th(IV) selectivity over competing ions. At pH 4.5, the synthesized TAPP-BTD-COF exhibits a high adsorption capacity of 437.18 mg g-1 and reaches equilibrium within 20 minutes. It demonstrates exceptional selectivity for Th(IV), with a separation factor exceeding 2.6×10³ relative to common interfering ions, and retains over 90% adsorption capacity after three consecutive cycles. Mechanistic studies confirm that the high performance originates from N–Th / S–Th dual-dentate coordination. This work provides a strategic design of functional COFs for thorium recovery and represents a highly efficient adsorbent system for Th(IV) removal from aqueous streams.
- 30 April 2026
- Published by MDPI AG in Preprints.org
Open AccessThiophene-Integrated Porphyrin COF with N-S Synergistic Sites for Efficient and Selective Thorium (IV) Capture
The removal of thorium from contaminated water sources is crucial for environmental protection and nuclear waste management. Herein, we present a dual-strategy design of a thiophene-integrated porphyrin covalent organic framework (TAPP-BTD-COF) that combines rigid macrocyclic scaffolds with flexible thiophene linkages, incorporating complementary N and S donor sites. This tailored COF achieves efficient and selective capture of Th(IV) from acidic aqueous solutions. By leveraging the topological arrangement of the porphyrin core to modulate the conformation of thiophene-based connectors, a coordination environment with N–S synergistic sites is created, which significantly enhances Th(IV) selectivity over competing ions. At pH 4.5, the synthesized TAPP-BTD-COF exhibits a high adsorption capacity of 437.18 mg g-1 and reaches equilibrium within 20 minutes. It demonstrates exceptional selectivity for Th(IV), with a separation factor exceeding 2.6×10³ relative to common interfering ions, and retains over 90% adsorption capacity after three consecutive cycles. Mechanistic studies confirm that the high performance originates from N–Th / S–Th dual-dentate coordination. This work provides a strategic design of functional COFs for thorium recovery and represents a highly efficient adsorbent system for Th(IV) removal from aqueous streams.