Nitrogen-promoted active carbons as DeNOx catalysts

Photocatalytic performances of g-C3N4 based catalysts for RhB degradation: Effect of preparation conditions

“…The reason could be that the degree of condensation is different for g-C 3 N 4 treated in air and N 2 atmosphere, leading to differentiated surface properties. It has been reported that the vapor in air could promote the release of NH 3 from nitrogen doped carbon materials [47,48], thus less NH 3 is released or the sample is less condensed and more amino groups on the surface edge exist when it is treated in N 2 atmosphere containing less vapor. In a recent work we reported that the amount and the intensity of surface basic properties of g-C 3 N 4 , detected by CO 2 -TPD measurement, depend intimately on the treatment atmosphere [44].…”

The effects of urea modification and heat treatment on the process of NO2 removal by wood-based activated carbon

“…As an effective alternative to SCR, activated carbons have been used. Recently, Grzybek et al [12] showed that modification of active carbon with N-precursors such as gaseous ammonia (at high temperature) and aqueous solution of urea (followed by curing in air or nitrogen at * Corresponding author. Fax: +1 212 650 6107.…”

“…Therefore, the removal of NO x is extremely important and has been a subject of interest of many research groups [2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Although, a selective catalytic reduction (SCR) process has been widely applied in the denitrification of flue gases [10,11], it has disadvantages, which include high reaction temperature and unreacted reductants such as ammonia and hydrocarbons.…”

The application of modified cenospheres in DeNOx process

“…Numerous systems have been proposed as catalyst carriers, e.g. activated carbons [8][9][10][11][12][13][14][15][16][17], aluminosilicates [18][19][20][21][22], zeolites [23][24][25][26], hydrotalcites [27][28][29], etc. Most often, delectron metals, such as Fe [20,22,[30][31][32][33], Cu [5,18,[34][35][36][37][38], Mn [8,[39][40][41][42][43], etc.…”