Results 271 to 280 of about 4,244,479 (353)

Environmental remediation of heavy metal ions by novel-nanomaterials: A review.

Environmental Pollution, 2019
Recently, novel-nanomaterials with excellent sorption capacities, mild stability, and environmental-friendly performance, have enabled massive developments in capturing heavy metal ions.
Yi-Han Wu, Hong-Wei Pang, Yue Liu, Xiang-Xue Wang, Shu-Jun Yu, D. Fu, Jian-Rong Chen, Xiang-Ke Wang   +7 more
semanticscholar   +1 more source

Electron–Ion and Ion–Ion Dissociative Recombination of Oxygen. II. Ion–Ion Recombination

The Journal of Chemical Physics, 1968
The rate coefficient and the thermal cross section for the oxygen ion–ion dissociative recombination are calculated using the semiclassical formalism. The motion of the heavy particles (positive and negative ions) in their mutual Coulomb field is treated classically. At certain ranges of the ion–ion separation (determined from energy conservation), the
openaire   +1 more source

Synthetic ratiometric fluorescent probes for detection of ions.

Chemical Society Reviews, 2019
Metal cations and anions are essential for versatile physiological processes. Dysregulation of specific ion levels in living organisms is known to have an adverse effect on normal biological events.
Sang-Hyun Park, Nahyun Kwon, Jeeyeon Lee, Juyoung Yoon, Injae Shin   +4 more
semanticscholar   +1 more source

Fast Gelation of Ti3C2Tx MXene Initiated by Metal Ions

Advances in Materials, 2019
Gelation is an effective way to realize the self‐assembly of nanomaterials into different macrostructures, and in a typical use, the gelation of graphene oxide (GO) produces various graphene‐based carbon materials with different applications.
Ya-Qian Deng, Tong-Xin Shang, Zhi-Tan Wu, Ying Tao, C. Luo, Jia-Chen Liang, Da-Liang Han, Ruiyang Lyu, Changsheng Qi, Wei Lv, Fei-Yu Kang, Quan-Hong Yang   +11 more
semanticscholar   +1 more source

Effect of Light Ions on Ion-Ion Instability

AIP Conference Proceedings, 2003
Effects of light ions on an ion‐ion instability are investigated in laboratory experiments. Spatial growth rates of the instability are measured by an interferometer method. The results show that the growth rate of the instability is affected by light ions and is reduced by increasing their amount.
openaire   +1 more source

Ion-Ion Collisions and Ion Storage Rings

Physica Scripta, 1988
Improved understanding of fundamental ion-ion interactions is expected to emerge from research carried out with ion storage rings. In this short survey the significant advantages and unique features that make stored ions useful targets for collision experiments are reviewed and discussed.
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Ion-ion recombination in an ambient ion gas

Journal of Physics B: Atomic and Molecular Physics, 1982
Attention is drawn to collisional ion-ion recombination X++Y-+X+ (or Y-) to XY+X+ (or Y-) which can be important when the ion density ni is very high. If, for example, X+ is Kr+ and Y- is F- the recombination coefficient alpha i is 3.0*10-7 (300/ theta )4.5(ni/1015) cm3 s-1 where theta is the temperature.
openaire   +1 more source

Ion-Ion Interactions

1973
A model has been given for the breaking-up of an ionic crystal into free ions which stabilize themselves in solution with solvent sheaths. One central theme guided the account, the interaction of an ion with its neighboring water molecule.
John O’M. Bockris, Ronald A. Fredlein
openaire   +1 more source

Ion–Ion Collisions Involving Fullerene Ions

Fullerenes, Nanotubes and Carbon Nanostructures, 2005
Abstract Fullerenes are a direct link between atoms with discrete electronic energy levels and solids with a band structure and a well defined surface. In collision experiments, both between energetic ions or electrons and neutral C60 molecules [Walch, B.; Cocke, C.L.; Voelpel, R.; Salzborn, E.
H. Bräuning, A. Diehl, R. Trassl, A. Theiß, E. Salzborn, A. A. Narits, L. P. Presnyakov   +6 more
openaire   +1 more source

Ion-ion recombination at high ion density

Journal of Physics B: Atomic and Molecular Physics, 1985
By appeal to a Thomson-style treatment of recombination, it is shown that the rate for recombination of ions generated with uniform frequency within a reaction volume is a factor of 9/4 times greater than the rate for recombination of ions which approach each other from infinite separation.
openaire   +1 more source