[The interface fluorescence and resonance scattering spectral properties of Ag2S nanoparticles in liquid phase].
S2- and Ag+ form stable Ag2S nanoparticles in the presence of sodium dodecyl sulphate (SDS). It exhibits a strong resonance scattering peak at 470 nm and a strong fluorescence peak at 470 nm when excitation wavelength is at 200 nm. The effects of TAA and Ag+ concentration on the fluorescence intensities are consistent with those on the resonance scattering signals. The resonance scattering and fluorescence intensities all increase with Ag+ concentration in the range of 0-8.0 x 10(-5) mol x L(-1). The results verified that there is a correlation between the fluorescence and resonance scattering. The fluorescence is the interface fluorescence of Ag2S nanoparticles in liquid phase.
Zhang
Biao-ming
BM
Institute of Material Science and Engineering, Guangxi Normal University, Guilin 541004, China.
Jiang
Zhi-liang
ZL
Zhai
Hao-ying
HY
He
You-qui
YQ
Liu
Shao-pu
SP
D005453:Fluorescence; D008027:Light; D053758:Nanoparticles / Q000737:chemistry*; D012542:Scattering, Radiation; D012834:Silver / Q000737:chemistry*; D018030:Silver Compounds / Q000737:chemistry*; D012967:Sodium Dodecyl Sulfate / Q000737:chemistry; D012996:Solutions; D013050:Spectrometry, Fluorescence / Q000295:instrumentation / Q000379:methods*
D018030:Silver Compounds; D012996:Solutions; D012967:Sodium Dodecyl Sulfate; D012834:Silver; C013251:silver sulfide