カラマツの900℃ニッケル触媒炭化で得られた結晶性メソ孔木質炭素の染料とデキストランの液相吸着

機関リポジトリ オープンアクセス

書誌事項

タイトル別名
  • Liquid phase adsorption of dyes and dextrans by crystallized mesoporous wood carbon obtained by nickel-catalyzed carbonization of larch at 900℃

抄録

For crystallized mesoporous carbon (CMC) obtained by carbonization of nickel-loaded larch at 900℃, its liquid phase adsorption capacity for dyes and dextrans was examined before and after pulverization followed by washing with acid. By pulverization, graphitic nano shell chains as the crystallized form of CMC were fragmented into raspberry-shaped nano shell carbon particles accompanying the increase of mesopore volume and width. These morphological and pore structural changes brought about great increase in the adsorption amounts of both adsorbates. Subsequent washing with acid to remove coexisting nickel led to further increase in the amount of dextrans to surpass commercial mesoporous carbon in the adsorption capacity, although it was disadvantageous for the adsorption of dyes. As removal of the metal for its recovery and reuse is also industrially preferable, pulverization and subsequent washing with acid were post-treatments suitable for practical production of an adsorbent for non-polar polymers from CMC.

カラマツの900℃ニッケル触媒炭化で得られた結晶性メソ孔木炭(CMC)について、染料とデキストランの液相吸着能を粉砕-酸洗浄の前後で調べた。粉砕するとCMCの結晶形態であるグラファイトナノシェルチェーンはラズベリー型のナノシェル炭素に分解すると共にメソ孔の体積と径が増大した。これらの形態と細孔構造変化は両吸着物の吸着量を大きく増加させた。引き続く共存ニッケル除去のための酸洗浄はデキストランの吸着量をさらに増加させ、市販のメソ孔炭素の性能を上回った。回収、再使用のためのニッケル除去は工業的にも好ましいので、粉砕と引き続く酸洗浄はCMCからの非極性高分子吸着剤の実用生産に適した後処理であった。

収録刊行物

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ