介孔碳吸附处理高盐染料废水
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摘要
采用软模板法,选取葡萄糖、蔗糖、木质素及酚醛树脂作为碳源,分别以P123,F127为单一模板剂和P123/F127为复合模板剂,通过控制盐酸体积、炭烧温度及时间等工艺条件,探究制备介孔碳材料的最佳条件,制备介孔碳材料用于处理含5%NaCl的亚甲基蓝模拟废水,亚甲基蓝初始质量浓度为300 mg/L。结果表明,选用间苯三酚/甲醛为碳源,质量比为1:3的P123/F127复合模板剂,0.15 mL的盐酸为催化剂,600℃的炭烧温度,3 h的炭烧时间,制备出的介孔碳材料最好,其对高盐亚甲基蓝溶液的吸附量为385.19 mg/g,是活性炭的1.83倍,并缩短了吸附平衡时间。
The soft template method was adopted, and glucose, sucrose, lignin and phenolic resin were selected as different carbon sources. P123, F127 were used as single template agent and P123/F127 as composite template agent respectively. The optimum conditions for preparing mesoporous carbon materials were explored by controlling the volume of hydrochloric acid, burning temperature and time of charcoal. Mesoporous carbon material was used to treat methylene blue simulated wastewater containing 5% NaCl. The initial concentration of methylene blue was 300 mg/L. The results showed that mesoporous carbon materials prepared by using resorcinol/formaldehyde as carbon source, P123/F127 composite template agent with a mass ratio of 1:3, 0.15 mL hydrochloric acid as catalyst, 600 ℃ charcoal burning temperature and 3 h charcoal burning time were the best. The adsorption capacity of mesoporous carbon materials for methylene blue in high salinity solution was 385.19 mg/g, which was 1.83 times of activated carbon, moreover, the adsorption equilibrium time was shortened.
The soft template method was adopted, and glucose, sucrose, lignin and phenolic resin were selected as different carbon sources. P123, F127 were used as single template agent and P123/F127 as composite template agent respectively. The optimum conditions for preparing mesoporous carbon materials were explored by controlling the volume of hydrochloric acid, burning temperature and time of charcoal. Mesoporous carbon material was used to treat methylene blue simulated wastewater containing 5% NaCl. The initial concentration of methylene blue was 300 mg/L. The results showed that mesoporous carbon materials prepared by using resorcinol/formaldehyde as carbon source, P123/F127 composite template agent with a mass ratio of 1:3, 0.15 mL hydrochloric acid as catalyst, 600 ℃ charcoal burning temperature and 3 h charcoal burning time were the best. The adsorption capacity of mesoporous carbon materials for methylene blue in high salinity solution was 385.19 mg/g, which was 1.83 times of activated carbon, moreover, the adsorption equilibrium time was shortened.
引文
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[2]王娜.高盐农药有机废水清洁处理技术[D].济南:齐鲁工业大学,2016.
[3]吴春笃,陈闪闪,徐岗,等.新型类Fenton催化剂表征及其降解染料废水的试验研究[J].工业安全与环保,2016,42(3):62-64.
[4]薛广钊,侯贵华,乔仁静,等.稻壳基高比表面积介孔活性炭的制备与表征[J].环境工程学报,2016,10(1):375-378.
[5]赵东江,马松艳,田喜强,等.掺杂有序介孔炭氧还原电催化剂的研究进展[J].炭素技术,2018,37(2):1-7.
[6]任杰,刘凤玲,邱慧,等.模板剂十二胺对胺改性HMS吸附CO的影响[J].中国环境科学,2018,38(4):1274-1279.
[7]NG E P,GOUPIL J M,VICENTE A,et al.Nucleation and crystal growth features of EMT-type zeolite synthesized from an organic-template-free system[J].Chemistry of Materials,2018,24(24):4758-4765.
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