明胶衍生多孔碳的制备及其吸附亚甲基蓝性能研究
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摘要
目前,活性炭在废水净化过程被广泛使用,但也存在吸附容量小和吸附速率低等不足。针对上述问题,选用价廉易得的生物质-明胶作为原料,通过溶胶-凝胶路线制备了一种具有多级孔结构的碳材料。该材料具有较大的比表面积和孔容和相互连通的孔结构并在亚甲基蓝吸附净化过程中表现出优异的吸附净化性能。
At present,activated carbon is widely used in the process of wastewater purification,however,there are still some deficiencies,such as small adsorption capacity and low adsorption rate.In view of the problems above,a kind of carbon-based material with multistage pore structure was prepared via a sol-gel route using the cheap and available biomass gelatin as raw material.The obtained porous carbon had relative large specific surface area and pore volume,and interconnected porous structure.Thus,it exhibited excellent adsorption performance in the process of methylene blue adsorption and purification.
At present,activated carbon is widely used in the process of wastewater purification,however,there are still some deficiencies,such as small adsorption capacity and low adsorption rate.In view of the problems above,a kind of carbon-based material with multistage pore structure was prepared via a sol-gel route using the cheap and available biomass gelatin as raw material.The obtained porous carbon had relative large specific surface area and pore volume,and interconnected porous structure.Thus,it exhibited excellent adsorption performance in the process of methylene blue adsorption and purification.
引文
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[2]吕后鲁,刘德启.工业废水处理技术综述[J].石油化工环境保护,2006(4):15-19.
[3]史超,包永胜,贾美林,等.硼掺杂介孔碳材料对亚甲基蓝和甲基橙吸附性能[J].水处理技术,2018,44(9):56-61.
[4]朱勤芳.活性炭吸附法在工业废水处理中的应用[J].环境与发展,2018,30(8):89-91.
[5]陈俊英,冯向应,史召霞.混合活化制备稻壳基活性炭研究[J].功能材料,2012,43(23):3278-3281.
[6]苏伟,周亚平,魏留芳,等.微孔结构与表面改性对活性炭吸附储氢能力的影响[J].新型炭材料,2007(2):135-140.
[7]刘斌,顾洁,邱盼,等.稻壳活性炭对水中染料的吸附特性及其回收利用[J].环境科学学报,2014,34(9):2256-2264.
[8]Geng Longlong,Zhang Min,Zhang Wenxiang,et al.Rational design of carbon support to prepare ultrafine iron oxide catalysts for air oxidation of alcohols[J].Catal Sci Technol,2015,5:3097-3102.
[9]Zhang Xiuling,Liu Pengfei,Wang Na,et al.Controllable assembly of three copper-organic frameworks: Structure transformation and gas adsorption properties[J].Polyhedron,2017,126:83-91.