NSTL国家科技图书文献中心

1. Interaction of polyamines with perrhenate ions: influence of Brønsted basicity of the polymer matrix NSTL国家科技图书文献中心

Melchakova, O. V. | Pestov, A. V.... - 《Russian Chemical Bulletin》 - 2025,74(1) - 72～82 - 共11页

摘要：The adsorption of Re-VII was estimated for polyethyleneimine (PEI), polyallylamine (PAA), and polyaminostyrene (PAST) possessing different Br & oslash;nsted basicity. A high adsorption of Re-VII (up t...

关键词： sorption | rhenium | polyethyleneimine | polyallylamine | polyaminostyrene

2. Nanosized titanium dioxide modification for gallium ions photoadsorption NSTL国家科技图书文献中心

Dorosheva, I. B. | Kel, P. V.... - 《Journal of Alloys and Compounds》 - 2025,1010 - 177537～ - 共9页

摘要：Titanium dioxide nanoparticles were obtained by the sol-gel method followed by modification in atmospheres of air at 350 and 800 degrees C and hydrogen at 400 and 800 degrees C for 2 h. The phase comp...

关键词： Titanium dioxide | Nanoparticles | Sol-gel method | Photoadsorption | Gallium

3. Photosorption of Chromium on Titanium Dioxide Prepared by Hydrothermal Synthesis NSTL国家科技图书文献中心

Ordinartsev, D. P. | Pechishcheva, N. V.... - 《Russian Journal of General Chemistry》 - 2024,94(3) - 600～607 - 共8页

摘要：Photosorption of chromium on titanium dioxide is a complex multi-stepe process. In this work, the stages of photosorption extraction of Cr(VI) depending on the pH of the medium were determined, and th...

关键词： chromium photosorption | hydrothermal synthesis | titanium dioxide | zeta-potential

4. Mechanical activation of anatase as a way to improve hexavalent chromium removal from solutions by the photoreduction and adsorption under near visible LED irradiation NSTL国家科技图书文献中心

Pechishcheva, N. V. | Burdina, L. G.... - 《Materials Chemistry and Physics》 - 2024,314 - ARTN 128872～ - 共11页

摘要：Bifunctional as a photocatalyst and a sorbent material was obtained by easily accessible mechanical activation of commercially available anatase powder. The resulting powders were characterized by SEM...

关键词： Titanium dioxide | High-energy ball milling | Photoreduction | Nanosized powder | Cr(VI) removal | PHOTOCATALYTIC REDUCTION | PHYSICOCHEMICAL PROPERTIES | TITANIUM-DIOXIDE | MILLED TIO2 | CR(VI)...

5. Methods for the Determination of Arsenic in Metallurgical Materials EI 工程索引 NSTL国家科技图书文献中心

Belozerova, A. A. | Pechishcheva, N. V.... - 《Journal of analytical chemistry》 - 2023,78(3) - 294～302 - 共9页

摘要：The review summarizes the results of publications on methods for determining arsenic in metallurgical materials from 2000 to 2022.

关键词： arsenic | metallurgical materials | ores | spectrochemical methods of analysis | ATOMIC-ABSORPTION-SPECTROMETRY | OPTICAL-EMISSION-SPECTROMETRY | HYDRIDE GENERATION | ENVIRONMENTAL-SAMPLES | GEOLOGICAL SAMPLES | IMPURITY ELEMENTS...

6. Adsorption of Cr(VI) by Nanosized Rutile under the Action of UV Radiation NSTL国家科技图书文献中心

Pechishcheva, N. V. | Ordinartsev, D. P.... - 《Russian Journal of Physical Chemistry》 - 2023,97(2) - 392～396 - 共5页

摘要：the properties of nanosized sorbents prepared by high-energy milling from microcrystalline powder of titanium dioxide of rutile modification have been studied. It was established that milling to an av...

关键词： rutile | chromium(VI) | ultraviolet | adsorption | CHROMIUM | OXIDATION | SORPTION | TIO2

7. Perrhenate-ions adsorption by N-substituted chitosan derivatives SCIE Web of Science核心 SCOPUS Scopus数据库 NSTL国家科技图书文献中心

Melchakova, O. V. | Pestov, A. V.... - 《Russian Chemical Bulletin》 - 2019,68(3) - 521～526 - 共6页

摘要：A comparative study of the sorption properties of N-(2-carboxyethyl)chitosan (CEC), N-(2-sulfoethyl)chitosan (SEC), N-(2,3-dihydroxy)propyl chitosan (HPC) and N-2-(2-pyridyl)ethyl chitosan (PEC) with ...

关键词： adsorption | rhenium | chitosan | functional derivatives

8. Determination of Main Components of Glass-Forming Cu-Zr Alloys SCOPUS Scopus数据库 SCIE Web of Science核心 NSTL国家科技图书文献中心

Pechishcheva, N. V. | Evdokimova, O. V.... - 《Inorganic materials》 - 2017,53(14) - 1405～1410 - 共6页

摘要：A rapid procedure is developed for determination of copper and zirconium in their binary alloys Cu100-x Zr (x) in the content ranges corresponding to the region of bulk amorphization (x = 30-70) using...

关键词： copper-zirconium alloys | chemical analysis | inductively coupled plasma atomic emission spectroscopy | gravimetric analysis | spectrophotometry | inert gas fusion technique

9. Microstructure and Properties of Nd - Fe - B Alloys Produced by Strip Casting and of Permanent Magnets Fabricated from Them SCIE Web of Science核心 SCOPUS Scopus数据库 NSTL国家科技图书文献中心

Vasilenko, D. Yu. | Shitov, A. V.... - 《Metal Science and Heat Treatment》 - 2015,56(11/12) - 585～590 - 共6页

摘要：Optimization of the microstructure of plates from alloys of the R - Fe - B (R: Nd, Dy) system obtained by pouring the melt onto a rotating copper drum by the method of strip casting is studied. The st...

关键词： Nd - Dy - Fe - B alloys | strip casting | melt hardening on a rotating copper drum | microstructure | sintered permanent magnets | hysteresis properties

10. Preparation of Sorbents Based on Chitosan and Its Sulfoethyl Derivative for Sorption of Perrhenate Ions SCIE Web of Science核心 SCOPUS Scopus数据库 NSTL国家科技图书文献中心

Evdokimova, O. V. | Pestov, A. V.... - 《Russian journal of applied chemistry》 - 2016,89(8) - 1377～1382 - 共6页

摘要：The ability of cross-linked chitosan to take up perrhenate ions was studied systematically. The degree of sorption from acetate buffer solution at pH in the interval 2.8-3.1 reaches 85% and more. N-Su...