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来自Euryale ferox的木氧金属酸盐修饰生物炭,用于有效地从废水中去除刚果红色:吸附行为和机制

Luxin Zhang¹, Qunshuai Li², Xiaobing Liu²

¹College of Environmental and Municipal Engineering, Shaanxi Key Laboratory of Environmental Engineering, Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an, 710055, People's Republic of China. zhangluxinxx@126.com.

Environmental science and pollution research international

|April 5, 2024

概括

用斯木氧金属酸盐修改的Euryale ferox生物炭有效地从废水中去除了刚果红色. 经过Bi2MoO6修改的生物炭 (BM-EBC) 显示出优异的吸附能力,这表明它是生物质废弃物利用的有希望的方法.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
生物质的价值化生物质的价值化

背景情况:

污染的污染污染的染料,如刚果红色 (CR) 带来了环境挑战.
从生物质废物中开发高效和可持续的吸附剂对于环境修复至关重要.

研究的目的:

准备和评估来自欧里亚尔铁树皮的生物炭,经过甲氧金属酸盐的修饰,用于从废水中去除刚果红色.
为了研究修饰生物炭的吸附机制和性能.

主要方法:

准备原始生物炭 (EBC),Bi2MoO6修饰生物炭 (BM-EBC) 和BiFeO3修饰生物炭 (BF-EBC) 来自Euryale ferox皮.
吸附实验以确定刚果红色去除能力.
使用SEM,BET,FTIR,XPS,拉曼光谱和泽塔潜力分析进行表征.
使用弗洛伊德利希和伪二阶模型进行吸附建模.

主要成果:

对于刚果红色,BM-EBC的吸附能力为460.77 mg/g,明显高于EBC (217.59 mg/g) 和BF-EBC (359.49 mg/g).
多层化学吸收被确定为主要的吸附机制.
吸附过程是自发的和内热的,液膜和粒子内部扩散作为速度限制的步骤.
修改后的生物炭显示了增强的表面积和氧功能群,促进孔隙填充,π-π相互作用,结合和复杂化.

结论:

修改了木氧金属酸盐,特别是BM-EBC的Euryale ferox生物炭是刚果红色去除的高效吸附剂.
这种方法提供了一种可持续的途径,可以利用农业废物,同时解决水污染问题.
增强的吸附性归因于木氧金属酸盐和生物炭矩阵的协同效应.

关键词:

欧里亚雷亚尔 (Euryale ferox) 皮皮皮生物炭是一种生物炭.木氧金属酸盐是什么?刚果红刚果红刚果红修改修改修改是一个移除移除移除移除

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