Nitrate reduction in water: Influence of the addition of a second metal on the performances of the Pd/CeO2 catalyst

Mono and bimetallic NaY catalysts with high performance in nitrate reduction in water

“…Since the discovery of the good performance of noble metal-containing bimetallic catalysts for this reaction [3], several studies using bimetallic catalysts, composed of a noble metal (Pd, Pt or Rh) and a promoter metal (Cu, Sn or In) supported on different materials have been carried out, in order to develop a catalytic nitrate reduction process highly active and selective for nitrogen. Various supports have been reported in the literature, such as alumina [4,5], zirconia [6], activated carbon [7][8][9], SnO 2 [10], TiO 2 [11], ceria [12], SiO 2 [13] and zeolites [14,15] and it has been demonstrated that the nature of the support significantly affects the catalytic activity and selectivity of the catalysts [16].…”

Highly effective photocatalytic system comprising semiconductor photocatalyst and supported bimetallic non-photocatalyst for selective reduction of nitrate to nitrogen in water

“…1) [3], the reaction over supported bimetallic catalysts has been actively investigated as a promising technology to remediate NO 3 --polluted groundwater . Thus far, a few bimetallic Pd and bimetallic Pt catalysts showing high activity and high selectivity to N 2 have been developed [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. However, using gaseous H 2 as a reducing agent is a serious issue because handling the flammable gas at high pressures is difficult.…”

Synthesis of copper on iron/aluminum oxide mesoporous spheres and application on denitrification reaction

“…On the other hand, the reduction of nitrate using metal ions is a promising method for denitrification of water and many studies have been conducted with the aim to develop new selective materials for the reduction of nitrate to nitrogen [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31]. Despite the good results achieved, the use of noble metal-based solids such as Pd and Pt as well as the addition of hydrogen in the reaction medium limit its application in large scale due to the high costs involved [2,18].…”