Catalytic hyrodechlorination of chlorophenols in aqueous solution under mild conditions

Complete dechlorination of pentachlorophenol using palladized bacterial cellulose in a rotating catalyst contact reactor

“…Thus it may be concluded that sorbed PCP was dechlorinated following reaction with the active species of hydrogen generated on the surface of palladized bacterial cellulose. overall yield of 98% in 83 h [16,19]. In the present investigations almost stoichiometric release of chloride ions (expected yield of 26 from 40 mg L −1 of PCP) was observed.…”

“…However, advantages of bimetallic system such as high rate of reaction, efficiency, mild reaction conditions, and requirement for minimal follow-up treatment, will be defeated if reactor design does not permit the reuse and recovery of expensive catalysts such as palladium through immobilization on suitable support matrices. Hydrodechlorination of chlorophenols using supported palladium has been reported profusely in the literature [14][15][16][17][18][19]. Various types of support materials such as carbon, chitin, chitosan, amino acids, alumina, silica, zeolites, and metal oxides such as TiO 2 , MgO, ZrO 2 have been used for the immobilization of palladium [14,18,20].…”

Dechlorination of hexachlorobenzene using ultrafine Ca–Fe composite oxides

“…They include biodegradation [3][4][5], photocatalytic oxidation [6,7] and catalytic hydrodechlorination [8][9][10][11][12][13][14][15][16][17]. In general, chemical methods have been by far the most studied ones.…”

Competitive Reaction During Decomposition of Hexachlorobenzene Over Ultrafine Ca–Fe Composite Oxide Catalyst

“…0.1 ng of I-TEQ/Nm 3 ) have been imposed on the emissions of such compounds in many countries [2]. To meet the standards, various methods have been tried to destroy the chlorinated organics including PCDDs and PCDFs, such as biodegradation [3,4], photocatalytic oxidation [5,6] and catalytic hydrodechlorination [7][8][9][10][11][12][13][14][15][16].…”