Results 21 to 30 of about 6,655 (229)

Uranium from phosphoric acid: Kinetic studies of the solvent extraction processes for uranium extraction

Desalination and Water Treatment, 2009
Kinetics of the mass transfer processes involved in uranium recovery from wet process phosphoric acid (WPA) by solvent extraction employing synergistic extractants has been studied. In the present investigation results on the kinetics of separation of entrained solvent by diluent washing and uranium mass transfer behaviour have been discussed.
Kartikey K. Yadav, R. Vijayalakshmi, H. Singh   +2 more
openaire   +1 more source

Uranium extraction with modified sorbents

Kompleksnoe Ispolʹzovanie Mineralʹnogo syrʹâ/Complex Use of Mineral Resources/Mineraldik Shikisattardy Keshendi Paidalanu, 2020
Hydrometallurgical processing of uranium-containing raw materials generates a significant amount of liquid industry-related waste, namely waste solutions that require disposal. Sorption is known as one of the most effective methods for purifying liquid matters contaminated with radionuclides.
B.E. Abdikerim, B.K. Kenzhaliyev, T.Yu. Surkova, N. Didik, A.N. Berkinbayeva, Z.D. Dosymbayeva, N.S. Umirbekova   +6 more
openaire   +1 more source

Engineering Polar Nanoregions in COFs via Controlled Symmetry Breaking Toward Piezocatalysis

Angewandte Chemie, EarlyView.
Polar nanoregions (PNRs) are engineered within covalent organic frameworks via asymmetric grafting of highly polar polyfluoroalkyl chains, which enables controlled symmetry breaking. These randomly oriented artificial PNRs dynamically respond to mechanical stimuli and impart relaxation behavior to the COFs (TFB‐TAPT‐FA).
Ge Yan, Yixuan Wang, Xiaodong Sun, Liberty L. Mguni, Shuai Zhang, Shiyuan Liu, Xue Zhou, Lingfeng Zhu, Yali Yao, Hongwei Huang, Liqun Ye, Xinyi Yang, Bo Zou, Tianyi Ma   +13 more
wiley   +2 more sources

Preparation of PAO/TiO2 Electrode and Efficient Extraction of Uranium from Seawater

Yuanzineng kexue jishu
In order to investigate the reduction performance of U(Ⅵ) in seawater by electrochemical technology, TiO2 nanotube array electrode was firstly prepared by anodizing method, and then the amidoxime-modified TiO2 electrode (PAO/TiO2 electrode) was prepared ...
SONG Yan, CHEN Gang, WANG Fengju, WU Haotian, LI Ziming, LI Hao, LI He, CUI Qi, CHEN Shusen
doaj   +1 more source

Study of technological parameters of ion exchange resins and technology of recultivation of off-balance uranium-containing dumps [PDF]

E3S Web of Conferences
The article presents the technology of uranium extraction, the results of uranium extraction from recultivative dumps, physicochemical and technological properties of applied resins, as well as the state of radiation and ecological situation in the area ...
Sanakulov Kuvandik, Sharafutdinov Ulugbek, Razhabboev Ibodulla, Khamidov Rustam, Khamidova Madina   +4 more
doaj   +1 more source

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

Advanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao, Jiaojiao Zhang, Shideng Yuan, Xinmeng Yu, Keming Wan, Xiaoguang Duan, Zhining Wang   +6 more
wiley   +1 more source

Progress in Photocatalytic Assisted Uranium Extraction in Air Atmosphere

He huaxue yu fangshe huaxue
Photocatalytic assisted uranium extraction technology is a rapidly developed technology for uranium extraction from wastewater and seawater in recent years, which can significantly improve the extraction capacity and extraction rate of uranium.
Shan-shan YU, Zhe WANG, Jing CHEN, Yue-xiang LU   +3 more
doaj   +1 more source

Anisotropic Phonon Dynamics and Directional Transport in Actinide Van der Waals Semiconductor Uranium Triselenide

Advanced Functional Materials, EarlyView.
USe3 is introduced as an actinide van der Waals semiconductor that mirrors the quasi‐one‐dimensional physics of transition‐metal trichalcogenides. Polarization‐resolved Raman spectroscopy on exfoliated flakes maps strong in‐plane phonon anisotropy and strain‐tunable mode shifts.
Aljoscha Söll, Valentino Jadriško, Sourav Dey, Nassima Benchtaber, Kalyan Sarkar, Borna Radatović, Jan Luxa, Fedor Lipilin, Kseniia Mosina, Vojtěch Kundrát, Jakub Zalesak, Jana Vejpravová, Martin Žáček, Szymon J. Zelewski, Nikolas Antonatos, Christoph Gadermaier, José J. Baldoví, Zdeněk Sofer   +17 more
wiley   +1 more source

Advances in Photocatalysis and Electrocatalysis of Uranium Extraction in Complex Environments

He huaxue yu fangshe huaxue
Uranium, as the most important fuel for nuclear power operation, is crucial to ensure the sustainable development of nuclear power. However, the supply-demand contradiction of uranium resources in China has become increasingly prominent, and the gap ...
Tao LIN, Rong HE, Tao CHEN, Hao-yu ZHANG, Lian-bing ZHONG, Wen-kun ZHU   +5 more
doaj   +1 more source

Ultra‐Radiostable Covalent Conformationally Interlocked Networks Enabling a Universal Radiometal‐Labeling Platform for Cancer Radioembolization

Advanced Science, EarlyView.
Conjugated poly(imide dioxime)‐based microspheres establish a radiometal coordination‐driven conformational interlocked network with ultra‐high radiostability. This platform enables low‐temperature, multi‐radionuclide labeling for SPECT/PET/MRI imaging and radionuclide therapy. Mechanistic insights from EXAFS and DFT reveal enhanced stability, while in
Xiao Xu, Zhenwen Zhao, Yangjie Wang, Zhigang Liu, Zhijie Liu, Xiaoling Li, Zhichen Mao, Lu Xu, Gan Lin, Gang Liu, Hongjuan Ma   +10 more
wiley   +1 more source