Zeta-Potential and Particle Size Studies of Silver Sulphide Nanoparticles

被引：5
|
作者：
Sharma, Vikash [1 ]
Tarachand [1 ]
Ganesan, V. [1 ]
Okram, Gunadhor S. [1 ]
机构：
[1] UGC DAE Consortium Sci Res, Univ Campus,Khandwa Rd, Indore 452001, Madhya Pradesh, India
来源：
DAE SOLID STATE PHYSICS SYMPOSIUM 2015 | 2016年 / 1731卷
关键词：
Nanoparticle; Atomic force microscopy; dynamic light scattering; isoelectric point; LIGHT-SCATTERING; THIN-FILMS; GLASSES;
D O I：
10.1063/1.4947741
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Silver sulfide (Ag2S) nanoparticles (NPs) were prepared successfully for the first time using diethylene glycol (DEG) as a surfactant. X-ray diffraction (XRD) data revealed single phase nature of the compound and energy-dispersive X-ray (EDX) confirmed its nominal composition. Their sizes were 43 nm from XRD, 50 nm from atomic force microscopy (AFM) and 19 nm & 213 nm from dynamic light scattering (DLS); their differences have been discussed. Autotitration study of zeta potential of these NPs in deionized water by DLS at different pH values confirmed an isoelectric point at pH = 5.14 and their very unstable nature in deionized water.
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