The effects of magnetic fields on water molecular hydrogen bonds

被引:334
作者
Cai, Ran [1 ]
Yang, Hongwei [1 ]
He, Jinsong [1 ]
Zhu, Wanpeng [1 ]
机构
[1] Tsinghua Univ, Dept Environm Sci & Engn, Beijing 100084, Peoples R China
基金
中国国家自然科学基金;
关键词
Magnetic field; Hydrogen bond; Water molecule; Water cluster; NMR; LIQUID WATER; CALCIUM-CARBONATE; CONDUCTIVITY; TEMPERATURE; SCALE;
D O I
10.1016/j.molstruc.2009.08.037
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In this paper, the experimental results on the effects of a magnetic field on water are reported Purified water was circulated at a constant flow rate in a magnetic field After this treatment, the physicochemical properties of water were changed, shown as the decrease of surface tension and the increase of viscosity over the treatment time. The water is more stable by magnetic treatment with less molecular energy and more activation energy. as shown from the calculation based on the results. The correlation time tau(c) was calculated in terms of spin-lattice relaxation time of proton NMR. which verified that the rotational motions got slow down after magnetic treatments. A two-phase model was set up to prove that the proportion of free water molecules was reduced The results suggested that the average size of water clusters became larger by magnetic treatments. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:15 / 19
页数:5
相关论文
共 35 条
[1]  
[Anonymous], 1971, Pulse and Fourier Transform NMR: Introduction to Theory and Methods
[2]   Magnetic amelioration of scale formation [J].
Baker, JS ;
Judd, SJ .
WATER RESEARCH, 1996, 30 (02) :247-260
[3]   Measurement of the Raman spectrum of liquid water [J].
Carey, DM ;
Korenowski, GM .
JOURNAL OF CHEMICAL PHYSICS, 1998, 108 (07) :2669-2675
[4]   The effect of an external magnetic field on the structure of liquid water using molecular dynamics simulation [J].
Chang, Kai-Tai ;
Weng, Cheng-I. .
JOURNAL OF APPLIED PHYSICS, 2006, 100 (04)
[5]   Some peculiarities of liquid water structure [J].
Chumaevskii, NA ;
Rodnikova, MN .
JOURNAL OF MOLECULAR LIQUIDS, 2003, 106 (2-3) :167-177
[6]  
FERREUX M, 1993, TRAITEMENTS ANTITART, V57
[7]  
Franks F., 1972, Water: A Comprehensive Treatise. The Physics and Physical Chemistry of Water
[8]   STRUCTURE OF LIQUID WATER - STATISTICAL THERMODYNAMIC THEORY [J].
HAGLER, AT ;
SCHERAGA, HA ;
NEMETHY, G .
JOURNAL OF PHYSICAL CHEMISTRY, 1972, 76 (22) :3229-&
[9]   EFFECTS OF A MAGNETIC-FIELD ON THE FORMATION OF CACO3 PARTICLES [J].
HIGASHITANI, K ;
KAGE, A ;
KATAMURA, S ;
IMAI, K ;
HATADE, S .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1993, 156 (01) :90-95
[10]   RELAXATION PROCESSES IN WATER - VISCOSITY, SELF-DIFFUSION, AND SPIN-LATTICE RELAXATION - KINETIC-MODEL [J].
HINDMAN, JC .
JOURNAL OF CHEMICAL PHYSICS, 1974, 60 (11) :4488-4496