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以金属离子化合物FeCl_3为交联剂和氧化剂,采用物理交联法一步合成羧甲基纤维素/聚苯胺复合导电凝胶球,通过FT-IR、SEM和EDS对复合凝胶的分子结构和微观形貌进行表征;凝胶的失水率和电导率主要由FeCl_3、羧甲基纤维素和苯磺酸钠的浓度控制,当羧甲基纤维素浓度为4.5%、FeCl_3浓度为0.5mol/L和苯磺酸钠浓度为0.4mol/L时,凝胶的失水率为30.2%,具有最佳电导率5.2×10~(-3)S/cm。凝胶对甲基蓝的吸附比较稳定,在不同浓度的甲基蓝溶液中,吸附率保持在30%~50%左右,甲基蓝初始浓度在最大值14mg/L时,吸附量达到最大值17.58mg/g。
The carboxymethyl cellulose / polyaniline composite conductive gel balls were synthesized by the physical cross-linking method using the metal ion compound FeCl 3 as the crosslinking agent and the oxidant. The molecular structure and microstructure of the composite gel were analyzed by FT-IR, SEM and EDS Morphology and characterization. The water loss and conductivity of the gel were mainly controlled by the concentration of FeCl_3, carboxymethylcellulose and sodium benzenesulfonate. When the concentration of carboxymethylcellulose was 4.5%, the concentration of FeCl_3 was 0.5mol / L And the concentration of sodium benzenesulfonate was 0.4mol / L, the water loss of gel was 30.2%, and the best conductivity was 5.2 × 10 -3 S / cm. Gel adsorption of methyl blue is relatively stable, with different concentrations of methyl blue solution, the adsorption rate remained at about 30% to 50%, the initial methyl blue concentration of 14mg / L maximum, the maximum adsorption 17.58 mg / g.