Results 251 to 260 of about 6,083,870 (296)

?????????????????????? ???????????????????????????? ?????????? Cu (II) ?? ???????????????????????????? ???????????????????? ???? ???????????? ???????????? ?? ????????????????

2022
?????????????????????? ?????????????????????????? ???????????????? ???? ???????????? ???????????? ?? ????????????????. ?????????????? ???? ?????????????????????? ???????????????????????????? ?? ???????????????????????????????? ?????????????????????? ?????????????? ???????????????????? ???????????????????????? ????????????????????, ???????????????????? ?
openaire   +3 more sources

Characterization of imidazolate-bridged Cu(ii)–Zn(ii) heterodinuclear and Cu(ii)–Cu(ii) homodinuclear hydroperoxo complexes as reaction intermediate models of Cu,Zn–SOD

Chemical Communications, 2000
Imidazolate-bridged Cu(II)–Zn(II) heterodinuclear and Cu(II)–Cu(II) homodinuclear hydroperoxo complexes are generated in the reactions between imidazolate-bridged heterodinuclear and homodinuclear complexes and H2O2 in the presence of triethylamine base and characterized spectroscopically as reaction intermediate models of Cu,Zn–SOD.
Hideki Ohtsu, Shunichi Fukuzumi, Shinobu Itoh, Shigenori Nagatomo, Teizo Kitagawa, Seiji Ogo, Yoshihito Watanabe   +6 more
openaire   +1 more source

Adsorption behavior and mechanism of Pb(II) and complex Cu(II) species by biowaste-derived char with amino functionalization.

Journal of Colloid and Interface Science, 2020
This work aimed to develop a feasible technology to reuse dead pig biowaste for heavy metals removal, which was first carbonized into pig bone char (PBC) after pyrolysis and further functionalized with amino (NH2) to improve its affinity with heavy ...
Yuanli Liu, Jiang Xu, Z. Cao, Ruiqi Fu, Chuchen Zhou, Zheni Wang, Xinhua Xu   +6 more
semanticscholar   +1 more source

Collapsed Cu(II)-Hydroxamate Metallacrowns

Inorganic Chemistry, 2012
Degradation of a strained, thermodynamically destabilized pentanuclear copper(II) 12-metallacrown-4 complex based on a picoline hydroxamic acid resulted in the formation of the tetranuclear compounds which are the first examples of solely hydroxamate-based Cu(II) metallacrown complexes with a collapse of the metallamacrocyclic cavity.
Irina A, Golenya, Elzbieta, Gumienna-Kontecka, Alexander N, Boyko, Matti, Haukka, Igor O, Fritsky   +4 more
openaire   +2 more sources

Coadsorption of Cu(II) and tylosin/sulfamethoxazole on biochar stabilized by nano-hydroxyapatite in aqueous environment

, 2020
Antibiotics and heavy metals are frequently detected simultaneously in water environment. In this study, a biochar stabilized by nano-hydroxyapatite (nHAP@biochar) was used for the coadsorption of tylosin (TYL)/sulfamethoxazole (SMX) and Cu(II) in ...
Zhen Li, Miao Li, Zhaoyan Wang, Xiang Liu   +3 more
semanticscholar   +1 more source

Single and simultaneous adsorption of pefloxacin and Cu(II) ions from aqueous solutions by oxidized multiwalled carbon nanotube.

Science of the Total Environment, 2019
In this study, the oxidized multiwalled carbon nanotube (O-MWCNTs) was obtained by a simple method, and investigated by various techniques (SEM, TEM, FT-IR, XPS and zeta potential) for the removal of pefloxacin and Cu(II).
Yaoyu Zhou, Yangzhuo He, Yujia Xiang, S. Meng, Xiaocheng Liu, Jiangfang Yu, Jian Yang, Jiachao Zhang, Pufeng Qin, Lin Luo   +9 more
semanticscholar   +1 more source

Autocatalytic Decomplexation of Cu(II)-EDTA and Simultaneous Removal of Aqueous Cu(II) by UV/Chlorine.

Environmental Science and Technology, 2019
Traditional processes usually cannot enable efficient water decontamination from toxic heavy metals complexed with organic ligands. Herein, we first reported the removal of Cu(II)-EDTA by a UV/chlorine process, where the Cu(II)-EDTA degradation obeyed ...
Xianfeng Huang, Yi Wang, Xuchun Li, Dongxin Guan, Yubao Li, Xiangyong Zheng, Min Zhao, C. Shan, B. Pan   +8 more
semanticscholar   +1 more source

The polyaminocarboxylated modified hydrochar for efficient capturing methylene blue and Cu(II) from water.

Bioresource Technology, 2019
The polyaminocarboxylated modified hydrochar (ACHC) was synthesized to introduce abundant amino, hydroxyl and carboxylate multifunctional groups onto the surface of hydrochar by etherification, amination and carboxylated reaction.
Bing Li, J. Lv, Jianzhong Guo, Shencheng Fu, M. Guo, Ping Yang   +5 more
semanticscholar   +1 more source

Effect and mechanism of Cu(II) on flotation separation of cassiterite from fluorite

, 2020
The effect and mechanism of Cu(II) on the flotation separation of cassiterite from fluorite using styrene phosphonic acid (SPA) as a collector were investigated by flotation tests, zeta potential measurements, X-ray photoelectron spectroscopy (XPS ...
Guichen Gong, Pan-Pan Wang, Jie Liu, Yue-xin Han, Yimin Zhu   +4 more
semanticscholar   +1 more source

Lifetime Measurements in Cu I and Cu II

Physica Scripta, 1976
Using 180-330 keV Cu+ions we have studied the beam-foil spectrum of Cu (1 000-6 000 Å) and determined lifetimes for four excited terms in Cu I and one in Cu II.
null L J Curtis, null B Engman, null I Martinson   +2 more
openaire   +1 more source