Formic acid as the in-situ hydrogen source for catalytic reduction of nitrate in water by PdAg alloy nanoparticles supported on amine-functionalized SiO2
PdAg/SiO2-NH2 catalyst for catalytic nitrate reduction with HCOOH as reducing agent. The closed reaction system enhanced catalytic nitrate reduction activity. Surface -NH2 modification enhanced nitrate reduction efficiency. PdAg/SiO2-NH2 demonstrated better nitrate reduction efficiency than PdCu/SiO2-NH2. Different optimal Ag contents for catalytic HCOOH decomposition and nitrate reduction.