Synthesis of polymer-supported copper complexes and their evaluation in catalytic phenol oxidation

被引:29
作者
Castro, Isabel U. [1 ]
Sherrington, David C. [2 ]
Fortuny, Agusti [3 ]
Fabregat, Azael [1 ]
Stuber, Frank [1 ]
Font, Josep [1 ]
Bengoa, Christophe [1 ]
机构
[1] Univ Rovira & Virgili, Escola Tecn Super Engn Quim, Dept Engn Quim, Tarragona 43007, Catalonia, Spain
[2] Univ Strathclyde, Dept Pure & Appl Chem, WestChem Grad Sch Chem, Glasgow G1 1XL, Lanark, Scotland
[3] U Politecn Catalunya, EPSEVG, Dept Engn Quim, Vilanova I La Geltru 08800, Spain
关键词
Copper; Phenol oxidation; Polymeric complex; WET OXIDATION; HYDROGEN-PEROXIDE; AQUEOUS PHENOL; PILLARED CLAY; WASTE-WATER; PH; DESTRUCTION; MODEL;
D O I
10.1016/j.cattod.2010.02.006
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Polymer-supported metal complexes have been used as catalysts for the catalytic wet hydrogen peroxide oxidation (CWPO) of phenol The synthesis of six catalysts derived from three polymer-supports (a polybenzimidazole resin and two poly(styrene-divinylbenzene) resins) and two Cu(II) salts The catalytic oxidation of phenol with initial phenol concentration of 1 g L-1 was performed in a 200 mL batch stirred tank reactor at 30 C and atmospheric pressure Under these conditions phenol conversion and total organic carbon conversion were evaluated The highest phenol conversion was 93% obtained for poly(DVB-co-VBC) functionalised with iminodiacetic acid (IMDA) and loaded with copper acetylacetonate however metal leaching was very unsatisfactory If metal leaching was taken Into consideration it was found that polybenzimidazole loaded with copper sulphate appeared to be the most stable yielding 54% of mineralisation and 075 TOC/phenol conversion efficiency with simultaneously low release of metal during the oxidation (C) 2010 Elsevier B V All rights reserved
引用
收藏
页码:66 / 70
页数:5
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