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The MWNT was treated by H2O2 with an aid of the sonication. The 1.0 g MWNT was treated with the 400 ml of H2O2 at 50 C for 90 min. The treated MWNT and H2O2 mixture was dried by two different methods: (i) thermal drying, which is the MWNT and H2O2 mixture was dried for 12 h at 80 in the drying oven.(ii) Freeze drying, which is the MWNT and H2O2 mixture was centrifuged for 1 h, then the mixture was washed with distilled water until the MWNT and H2O2 mixture contained almost no acidity (pH 6.0¨C6.5). Then, the MWNT and H2O2 mixture was freeze dried at K60 C for 72 h. ÎÒÊÇÐÂÊÖ£¬ÇëÎÊ´ó¼ÒÎÒÏëÓõÚÒ»ÖÖ·½·¨£¬µ«ÊDz»ÖªµÀÊDz»ÊÇ¿ÉÒÔÖ±½Ó°Ñ³¬Éù·ÖÉ¢ºóµÄË«ÑõË®ÈÜÒºÖ±½Ó·ÅÔÚÕæ¿Õ¸ÉÔïÏäÀïÃæºæ¸É£¬»á²»»á±¬Õ¨£¿Ð»Ð»´ó¼ÒÁË£¡ |
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