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来自棕藻的KHCO₃激活高表面积生物炭:在水溶液中有效吸附Cr (VI) 的案例研究

Quoc-Minh Truong¹, Thanh-Binh Nguyen², Chiu-Wen Chen³

¹Institute of Aquatic Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Department of Management Science, Thu Dau Mot University, Binh Duong 75000, Viet Nam.

Environmental research

|January 22, 2024

概括

研究人员从棕藻中开发了KHCO3-激活生物炭 (KBAB-3),以有效地去除 (Cr(VI)). 这种新型吸附剂在水处理应用中显示出高效率和可重复使用性.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.

背景情况:

六价 (Cr(VI)) 对环境和健康构成重大风险.
传统的Cr6去除方法经常面临效率和成本方面的挑战.
基于藻类的生物炭为水治理提供了一个可持续的替代方案.

研究的目的:

为了评估从棕藻 (Sargassum hemiphyllum) 入KHCO3的生物炭中获得的Cr (VI) 去除的有效性.
为了合成和描述KHCO3-激活生物炭 (KBAB-3) 的吸附特性.
评估KBAB-3在各种环境条件下的可重复使用性和性能.

主要方法:

合成KHCO3-激活生物炭 (KBAB-3) 使用棕藻和KHCO3在1:3的质量比.
在700°C时化混合物.
吸附实验,以确定Cr (VI) 的去除能力和效率.
在多个循环中评估材料的可重复使用性.

主要成果:

KBAB-3对Cr{VI}具有显著的吸附能力.
在不同的环境条件下,吸附能力在60-160毫克g-1之间.
在多次重复使用循环后,KBAB-3材料显示易于分离,并保持高的Cr(VI) 清除效率.

结论:

激活KHCO3生物炭 (KBAB-3) 是一种高效的吸附剂,用于去除CrVI.
新的KBAB-3材料在处理各种水源方面显示出实际应用的重大前景.
来自藻类的可持续和可重复使用的生物炭为重金属污染提供了可行的解决方案.

关键词:

吸附方式吸附方式吸附方式生物炭是一种生物炭.这就是Cr (VI) 的意思.在KHCO ((3)) 中.棕色藻类是一种色藻类.

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