Surface‐Grafted Single‐Atomic Pt−Nx Complex with a Precisely Regulating Coordination Sphere for Efficient Electron Acceptor‐Inducing Interfacial Electron Transfer DOI
Xinghao Zhang, Zhigang Li, Hanxi Li

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(30)

Published: May 9, 2024

Abstract Based on the electron‐withdrawing effect of Pt(bpy)Cl 2 molecule, a simple post‐modification amide reaction was firstly used to graft it onto surface NH ‐MIL‐125, which performed as highly efficient electron acceptor that induced conversion photoinduced charge migration pathway from internal BDC→TiO x external BDC→PtN migration, significantly improving efficiency transfer and separation. Furthermore, precisely regulating over first coordination sphere Pt single atoms achieved using further with additional bipyridine investigate Pt−N numbers activity. The as‐synthesized NML‐PtN exhibited superior photocatalytic hydrogen evolution activity 7.608 mmol g −1 h , remarkable improvement 225 2.26 times compared pristine ‐MIL‐125 4 respectively. In addition, apparent quantum yield 4.01 % (390 nm) turnover frequency 190.3 (0.78 wt SA; 129 nanoparticles/NML) revealed high solar utilization material. And macroscopic color changes caused by transition carrier paths observed. It holds profound significance for design MOF‐Molecule catalysts separation precise regulation single‐atom sphere.

Language: Английский

In-situ constructing an innovative and versatile nanotraps for incorporation of zero–valent iron nanoparticles into zeolite imidazole framework–8 towards high efficient detoxification and imprisonment of U(VI) and Se(IV) from water via a combination study of capture performance and underlying mechanism aspects DOI

Zheyu Fan,

Yanran You,

Kedan Ding

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 494, P. 153032 - 153032

Published: June 11, 2024

Language: Английский

Citations

5
Enhanced Photocatalytic Removal of U(VI) from Real Radioactive Wastewater by Modulating the Surface Charge Microenvironment in Porphyrin-Based Hydrogen-Bonded Organic Framework DOI

Peng Wu,

Yufan Zhao, Xiaoyu Yin

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(26), P. 33657 - 33668

Published: June 21, 2024

Reduction of soluble U(VI) to insoluble U(IV) based on photocatalysts is a simple, environmentally friendly, and efficient method for treating radioactive wastewater. The present study involved the systematic comparison photoelectric properties three metalloporphyrins with different metal centers synthesis novel porphyrin-based hydrogen-bonded organic framework (Ni-pHOF) photocatalyst by modulating surface charge microenvironment in porphyrin enhanced photocatalytic removal from Compared metal-free HOF, around Ni atom Ni-pHOF accelerated reduction kinetics under visible light illumination at initial moment, showing high rate, even air. rate aqueous solution can achieve over 98% presence coexisting nonoxidizing cations only decreased less than 8% after five cycles, exhibiting selectivity good reusability. Furthermore, remove 86.74% real low-level wastewater 120 min illumination, showcasing practical application potential. Density functional theory (DFT) calculations electron paramagnetic resonance (EPR) spectra indicated that through metallization conducive improving separation efficiency, prompting more e– •O2– participate reaction U(VI). This work provides new insights into HOFs paves way tailoring HOFs/COFs recovery

Language: Английский

Citations

5
Efficient uranium(VI) recovery from fluorinated wastewater via deferiprone ligand complexation DOI

Juanlong Li,

Yezi Hu,

Zewen Shen

et al.

Water Research, Journal Year: 2024, Volume and Issue: 271, P. 122884 - 122884

Published: Nov. 29, 2024

Language: Английский

Citations

5
Bismuth nanocluster loaded on N-doped porous carbon with “memory catalysis” effect for efficient photocatalytic H2 generation and uranium(VI) reduction DOI

Weidi Qin,

Yang Xiao,

Chunlei Zhang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 490, P. 151511 - 151511

Published: April 21, 2024

Language: Английский

Citations

4
Surface‐Grafted Single‐Atomic Pt−Nx Complex with a Precisely Regulating Coordination Sphere for Efficient Electron Acceptor‐Inducing Interfacial Electron Transfer DOI
Xinghao Zhang, Zhigang Li, Hanxi Li

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(30)

Published: May 9, 2024

Abstract Based on the electron‐withdrawing effect of Pt(bpy)Cl 2 molecule, a simple post‐modification amide reaction was firstly used to graft it onto surface NH ‐MIL‐125, which performed as highly efficient electron acceptor that induced conversion photoinduced charge migration pathway from internal BDC→TiO x external BDC→PtN migration, significantly improving efficiency transfer and separation. Furthermore, precisely regulating over first coordination sphere Pt single atoms achieved using further with additional bipyridine investigate Pt−N numbers activity. The as‐synthesized NML‐PtN exhibited superior photocatalytic hydrogen evolution activity 7.608 mmol g −1 h , remarkable improvement 225 2.26 times compared pristine ‐MIL‐125 4 respectively. In addition, apparent quantum yield 4.01 % (390 nm) turnover frequency 190.3 (0.78 wt SA; 129 nanoparticles/NML) revealed high solar utilization material. And macroscopic color changes caused by transition carrier paths observed. It holds profound significance for design MOF‐Molecule catalysts separation precise regulation single‐atom sphere.

Language: Английский

Citations

4