In this paper, a
series of silver nanoparticle (AgNP)-decorated
boron nitride (Ag-BN) with different Ag amounts were successfully
synthesized by a one-pot pyrolysis method and used as novel high-efficiency
adsorbents for the removal of organic pollutant tetracycline (TC)
and rhodamine B (RhB). According to the adsorption capacity of the
samples, the obtained optimal Ag/B molar ratio was 1%. The adsorption
data fitted well with the pseudo-second-order kinetics and Langmuir
isotherm models with the maximum adsorption capacity of 358 and 880
mg/g for TC and RhB, respectively. The thermodynamic studies suggested
that the adsorption process was spontaneous and endothermic in nature.
The introduction of AgNP onto BN enhanced the adsorption capacity
on account of tunable electronic properties. The adsorption mechanism
is discussed in detail with the effect of pH, density function theory
(DFT), and thermodynamics.
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