释放Cajanus cajun生物炭聚合物复合物的Cu (II) 去除潜力:机制,修改和应用
Sadamanti Sireesha1, Inkollu Sreedhar2
1Department of Chemical Engineering, BITS Pilani Hyderabad Campus, Hyderabad, 500078, India.
概括
一种基于生物炭的新型酸盐复合物 (SBPC) 为从水中去除铜等重金属提供了一种低成本,高效的解决方案. 这种稳定的材料具有出色的吸附能力和可回收性,非常适合用于净水应用.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 水中的重金属污染对环境和健康构成重大风险.
- 开发具有成本效益和高效的吸附剂对于水资源整治至关重要.
- 基于生物炭的复合材料在去除污染物方面具有有前途的性能.
研究的目的:
- 开发一种具有成本效益,多孔性和离子表面修饰的基于生物炭的酸聚合物网络复合物 (SBPC).
- 分析组件度在SBPC制造和性能中的作用.
- 评估SBPC在去除重金属离子,特别是Cu2+的吸附机制和效率.
主要方法:
- 通过空气干燥制造SBPC.
- 使用各种技术进行微观结构和吸附机制的表征.
- 使用响应表面方法 (RSM) 和柱体实验进行吸附研究.
- 动力和同热模型 (Langmuir,伪二阶).
- 在多个循环中进行溶解和稳定性测试.
主要成果:
- SBPC的铜结合能力高达937.4 mg/g (RSM) 和823.2 mg/g (柱子研究).
- 吸附剂在单一和自然水系统中有效地去除了Cu2+,显示出具有竞争力的吸附.
- 兰木尔等温法 (R2=0.98) 和伪二次动力学 (R2=0.99) 准确地描述了吸附过程.
- 在10个脱吸周期中,SBPC表现出极好的稳定性,对Cu2+的吸附率为98%和脱吸效率为91%.
结论:
- 开发的SBPC是一种高效和稳定的吸附剂,用于Cu2+的去除.
- 这种制造方法具有成本效益,生产成本为1.51美元/公斤.
- 在现实世界水系统中,SBPC显示出作为重金属整治可持续解决方案的巨大潜力.
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