Results 41 to 50 of about 6,407 (226)

Kinetic‐Directed Thermodynamic Repair Enables the Synthesis of High‐Strain 2D Sub‐Stoichiometric COFs

Advanced Science, EarlyView.
2D covalent organic frameworks are promising photocatalysts. Yet, precise synthesis of sub‐stoichiometric COFs remains challenging due to poor kinetic control. We propose a general strategy: tuning polymerization degree of kinetic intermediates via time or solvent polarity directs their thermodynamic repair into highly crystallization. Using [4+3]‐type
Xiang Pei, Kaifu Yu, Pan He, Hongqing Wu, Bo Jiang, Kewen Shu, Yang Li, Ya Tang, Lijian Ma   +8 more
wiley   +1 more source

Performance and Mechanism of MoS2/Octahedral Fe3O4 Composite Interface Catalytic Electrochemical Seawater Extraction of Uranium

He huaxue yu fangshe huaxue
Extracting uranium from seawater is an effective strategy for sustainable nuclear fuel supplementation. Uranium in seawater mainly exists in the form of hexavalent uranyl(U(Ⅵ)), although the total amount is large, the mass fraction of U(Ⅵ) is only 3.3×10−
Ying-tong LYU, Wang LIU, Bo-ming ZHU, Ru CHENG, Xu-dong WU, Huan-huan LIU, Rong HE   +6 more
doaj   +1 more source

ABCABC Stacking‐Enabled Non‐Centrosymmetry 3R‐ZnIn2S4 Nanosheets for Piezocatalytic Uranium Extraction

Advanced Science, EarlyView.
The ABCABC stacking sequence in 2D ZnIn2S4 nanosheets creates intrinsic non‐centrosymmetry, enabling robust piezocatalysis under weak mechanical agitation. The nanosheets achieve a H2O2 yield of 276.7 µmol g−1 h−1 and uranium extraction capacity of 763.2 mg g−1 via a dual mechanism of direct piezoreduction and in situ H2O2 complexation.
Song Li, Huaijuan Zhou, Yingting Yang, Yanhong Lv, Zdeněk Sofer, Jianyun Zheng, Jinhua Li   +6 more
wiley   +1 more source

Ion pair sites for efficient electrochemical extraction of uranium in real nuclear wastewater

Nature Communications
Electrochemical uranium extraction from nuclear wastewater represents an emerging strategy for recycling uranium resources. However, in nuclear fuel production which generates the majority of uranium-containing nuclear wastewater, fluoride ion (F−) co ...
Tao Lin, Tao Chen, Chi Jiao, Haoyu Zhang, Kai Hou, Hongxiang Jin, Yan Liu, Wenkun Zhu, Rong He   +8 more
doaj   +1 more source

Metal‐Half‐Salen Chemistry for One‐Pot Mineralization on Hydrophobic Polymer Membranes

Advanced Science, EarlyView.
Here we report a versatile one‐pot synthetic strategy for organic–inorganic composite membranes, which leverages a metal half‐Salen system to precisely govern the competing kinetics of coordination and hydrolysis. In contrast to conventional two‐step metal‐phenol chemistries, our integrated approach substantially simplifies the fabrication process ...
Rou‐Ming Wen, Hao Ye, Ming‐Bang Wu, Lu‐Lin Ma, Qi‐Hui Ye, Zi‐Hao Yuan, Yi Xie, Juming Yao, Hao‐Cheng Yang   +8 more
wiley   +1 more source

Advances in Uranium Extraction From Natural Seawater

He huaxue yu fangshe huaxue
With the vigorous development of the nuclear energy industry, ensuring the stable supply of nuclear fuel uranium resources is of vital importance. The ocean contains 4.5 billion tons of uranium, more than 1 000 times the amount of terrestrial uranium ...
Hao LI, Lu-yan LI, Qiang XIAN, Xing-rui TANG, Jun WEN, Xiao-lin WANG   +5 more
doaj   +1 more source

Advanced Photocatalytic Uranium Extraction Strategies: Progress, Challenges, and Prospects

Nanomaterials, 2023
Nuclear energy with low carbon emission and high-energy density is considered as one of the most promising future energy sources for human beings.
Wangchuan Zhu, Xiang Li, Danjun Wang, Feng Fu, Yucang Liang   +4 more
doaj   +1 more source

A Systemic Model for Understanding Business Interactions With Biodiversity and Ecosystems

Business Strategy and the Environment, EarlyView.
ABSTRACT Biodiversity loss and ecosystem degradation represent critical threats to human well‐being and economic resilience, challenging businesses to understand and manage their interdependence with natural systems. This study develops a systemic framework—the BioModel—that elucidates the reciprocal relationship between businesses, biodiversity, and ...
Lino Cinquini, Giacomo Pigatto, Andrea Tenucci   +2 more
wiley   +1 more source

Accurate Molecular Size Determination by Diffusion Ordered NMR Spectroscopy Based on an Improved Diffusion Model

Chemistry – A European Journal, EarlyView.
A semi‐empirical Stokes‐Einstein‐based model for describing the diffusion of organic, organometallic and coordination compounds is developed for the interpretation of diffusion constants obtained by diffusion‐ordered NMR spectroscopy (DOSY). This model uses the molecular volume as a descriptor and shows a high accuracy, enabling application to ...
Christian Urbank, Lisa Vondung
wiley   +1 more source

Performance comparison of monoamides on U recovery by temperature swing extraction using Ce

Mechanical Engineering Journal
Nuclear fuel fabrication process has generated a large amount of wastes contaminated with enriched uranium, and those have been accumulated for long time in Japan.
Toshihiro IWAMOTO, Madoka SAITO, Youko TAKAHATAKE, Sou WATANABE, Masayuki WATANABE, Atsuki NARUSE, Takehiko TSUKAHARA   +6 more
doaj   +1 more source