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增强的水性酸盐去除使用酸盐修饰的基装载的软木炭生物炭

Luiza Usevičiūtė¹, Artūras Kaklauskas², Vaidotas Danila²

¹Civil Engineering Research Centre, Vilnius Gediminas Technical University, Saulėtekio Al. 11, 10223, Vilnius, Lithuania. luiza.useviciute@vilniustech.lt.

Scientific reports

|August 10, 2025

概括

一种新型的Zr(IV) 载基修饰生物炭复合物 (CS-CBC-Zr) 能够有效地从水中去除酸盐 (PO4-P). 这些珠子具有很高的吸附能力和选择性,为缩控制提供了一个有前途的解决方案.

科学领域:

环境化学环境化学
材料科学材料科学材料科学
水处理处理水的方法

背景情况:

由于过多的酸盐 (PO4-P) 而导致的缩是环境的一个主要问题.
有效的酸盐去除对于减轻水体退化至关重要.
对于酸盐修复,需要开发高效和选择性的吸附剂.

研究的目的:

为了合成和评估一种新型的Zr(IV) 装载的酸盐修饰的二氧化碳复合材料 (CS-CBC-Zr),用于酸盐去除.
为了研究CS-CBC-Zr珠的吸附性能和影响参数.
了解吸附机制和酸盐去除的动力学.

主要方法:

合成CS-CBC-Zr复合珠从软木塞生物炭和奇托.
批量吸附实验以评估PO4-P去除效率.
对参数的研究:Zr负载,吸附剂剂量,pH值,共阴离子,接触时间和初始PO4-P度.
吸附动力学和异热模拟 (伪二阶,Sips模型).
使用FTIR,SEM和XPS进行吸附剂的表征.

主要成果:

与未经修改的生物炭相比,CS-CBC-Zr珠显示出优异的PO4-P吸附.
由Sips模型预测的最大吸附能力达到33.89 mg/g.
95%的PO4-P去除效率在120分钟内达到50mg/L的初始度.
在广泛的pH范围 (4-10) 中具有有效的性能,对PO4-P具有高选择性.
吸附跟随伪二次动力学,表明化学吸收.

结论:

CS-CBC-Zr复合珠是高效和选择性的吸附剂,用于酸盐去除.
这种材料显示了在控制肥胖化方面实际应用的潜力.
吸附过程主要由化学吸附控制,具有高容量和广泛适用性.

关键词:

水性溶液中的水性溶液.软木的生物炭是一种生物炭.交叉链接的基托改性生物炭.异热体 (isotherms) 是一种热体.运动学运动学清除的方法是去除.Zr (((IV) 是一个字.

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