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Interfacial adsorption behavior of amine-functionalized MCM-41 for Mo(VI) capture from aqueous solution.
Environ Res
January 2025
School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China; Zhongyuan Critical Metals Laboratory, Zhengzhou University, Zhengzhou 450001, China; The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry of Education, Zhengzhou 450001, China.
Given the environmental and ecological risks posed by wastewater bearing Mo, the characteristics and microscopic interactions of existing silica-based adsorbents have not been thoroughly investigated, highlighting the need to enhance the porosity and chemical interactions of these materials. Considering the effectiveness of amino groups in binding metal oxyanions, this study investigates the adsorption performance and mechanism of amino-functionalized MCM-41 for Mo(VI), with the goal of efficiently remediating Mo-contaminated wastewater. MCM-41 modified by amino group retains its original structure and mesoporous characteristics while featuring a positively charged surface and chemically bonded amino groups.
View Article and Find Full Text PDFHighly Mixed Index Facet Engineering Induces Defect Formation and Converts the Wave-Transmissive Mott Insulator NiO into Electromagnetic Wave Absorbent.
Adv Mater
November 2024
MOE Key Laboratory of Material Physics and Chemistry under Extraordinary, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, 710072, P. R. China.
Mott insulator possesses the property of converting into semiconductor under supernormal conditions and achieving the Mott insulator-semiconductor transition (IST) holds great scientific value. Nevertheless, current IST methodologies possess certain limitations because they are not capable of being implemented under conventional conditions, thereby limiting their practical applications. Herein, a highly mixed index facets (HMIF) strategy is proposed to construct homogeneous interfaces with gradient work function (WF) in Mott insulator NiO, accompanied by numerous oxygen vacancies.
View Article and Find Full Text PDFThermally regulated flocculation-coalescence process by temperature-responsive cationic polymeric surfactant for enhanced crude oil-water separation.
J Hazard Mater
January 2025
Zhongyuan Critical Metals Laboratory, Zhengzhou University, Zhengzhou 450001, China; School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China; The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry of Education, Zhengzhou 450001, China. Electronic address:
Polymeric surfactants play a crucial role in the flocculation-assisted coalescence process due to their unique bridging effect. However, the steric hindrance induced by their large molecules severely impedes the coalescence of oil droplets. Herein, temperature-responsive polymeric surfactants (quaternary ammonium chitosan-g-PNIPAM, Q-g-PN) with thermally-modulated structure were designed by integrating thermal responsive moieties onto cationic chitosan.
View Article and Find Full Text PDFSupernormal Temperature Sensing Performance Realized through the Blue Emitting Level of Er along with Detection Ability in Deep Tissues.
Inorg Chem
October 2024
State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 3888 Eastern South Lake Road, Changchun 130033, China.
Fluorescence intensity ratio (FIR)-type optical thermometers based on thermally coupled energy levels (TCLs) of rare earth ions are suitable candidates for noncontact temperature detection in living organisms, microelectronics apparatus, and so forth. Therefore, the improvement of the thermometric sensitivity of TCL-based thermometers has become a research hotspot in recent years. Herein, ultrahigh sensitivity and outstanding resolution for temperature sensing have been realized in YNbO: Yb/Er.
View Article and Find Full Text PDFThe recovery cycle of excitability assessed by a conventional electrodiagnostic machine: A study in healthy volunteers and in Charcot-Marie-Tooth 1A patients.
Clin Neurophysiol
November 2024
Centre Hospitalier Universitaire de Liège, Department of Neurophysiology, Sart Tilman B35, 4000 Liège, Belgium. Electronic address:
Objective: To validate the 'paired pulses' technique with a conventional electrodiagnostic machine (CEM) for studying the axonal excitability recovery cycle (ERC).
Methods: Paired pulses, with a variable inter-stimulus interval, were delivered at the wrist along the median nerve. The CEM repeatability was verified in a group of 15 healthy volunteers (test/retest analysis).
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