TY - JOUR
TI - Insight into adsorption behaviors of M-aminobenzoic acid on dried silver-coated filter paper: A combined experimental and theoretical exploration
AU - Tao Zhiming
AU - Tao Wendong
AU - Jiang Dongdong
AU - He Dan
AU - Zhu Menghu
JN - Thermal Science
PY - 2026
VL - 30
IS - 2
SP - 1231
EP - 1238
PT - Article
AB - In this study, we present a comprehensive investigation into the  surface-enhanced Raman scattering spectra of M-aminobenzoic acid adsorbed on  silver nanoparticles on dried silver-coated filter paper. In order to gain  in-depth insights into the adsorption behaviors of M-aminobenzoic acid, five  distinct models were meticulously established. The Raman spectra of these  models were calculated using the density functional theory - B3PW91 method  with the LANL2DZ basis set. A comparison of the theoretical values with the  experimental results revealed a remarkable degree of agreement. This  finding serves to validate the rationality of employing a simplified model  to depict the surface-enhanced Raman scattering phenomenon. The results  indicate that on the dried silver-coated filter paper, M-aminobenzoic acid  molecules predominantly adsorb onto the surfaces of silver particles via  carboxyl and amidogen groups, with the benzene ring plane being vertical or  nearly vertical to the silver particle surface. Indeed, a multitude of  ad-sorption models coexist for M-aminobenzoic acid on silver nanoparticles,  among which model c has a relatively higher probability of occurrence. This  research offers valuable insights into the interaction mechanism between  M-aminobenzoic acid and silver nanoparticles, providing a theoretical basis  for related applications in surface-enhanced Raman scatterning-based  detection and surface science.
DO - 10.2298/TSCI2602231T
ER -