草酸碳(C-Ox)实习废物在化学实验室中作为吸附剂的候选材料

Q3 Chemistry Molekul Pub Date : 2022-11-19 DOI:10.20884/1.jm.2022.17.3.6463
I. K. Lasia
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引用次数: 0

摘要

本研究旨在将碳和草酸盐实习废物作为化学实验室的候选吸附材料进行处理。采用湿法(C-OxW)和半湿法(C-OxDs)浸渍法,利用废渣合成草酸碳(C-Ox)。用扫描电镜和红外光谱对产物进行了测试。通过使每1克C-Ox与不同浓度的铬离子废物接触24小时同时摇动来测试吸附。滤液用原子吸收光谱法测定。将获得的数据与作为对照的标准活性炭(CC)进行比较,并用Freundlich和Langmuir等温线方程进行分析。结果表明,C-Ox可以作为化学实验室的吸附剂。根据SEM测试,C-OxW的孔比C-OxDs和CC的孔多。C-OxW和C-OxDs对铬离子的吸附比CC更有效。FTIR的C-Ox测试显示,羟基在3674.5和3705.41cm-1处出现非常尖锐的波数;对于C=O,1697.4 cm-1;C-O为1141.8cm-1。CC和C-Ox的Freundlich等温线的测定系数(R2)高于Langmuir等温线,而C-OxDs的R2则相反。
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Carbon-Oxalate (C-Ox) Practicum Waste as an Adsorbent Material Candidate in the Chemistry Laboratory
This study aims to treat carbon and oxalate practicum waste as an adsorbent material candidate in the Chemistry Laboratory. Practicum waste was used to synthesise carbon-oxalate (C-Ox) by using wet (C-OxW) and semi-wet (C-OxDs) impregnation methods. The products were tested by SEM and FTIR. The adsorption was tested by contacting each 1 gram of C-Ox with various concentrations of chromium ions waste for 24 hours while shaking. The filtrate was measured by AAS. The data obtained were compared with standard activated carbon (CC) as control and analyzed with Freundlich and Langmuir isotherm equations. The results showed that C-Ox can be used as an adsorbent in the chemistry laboratory. Based on the SEM test, the pores of C-OxW were seen to be most than C-OxDs and CC. Adsorption of chromium ions of C-OxW and C-OxDs were more effective than CC. C-Ox test by FTIR showed very sharp wavenumbers appeared at 3674.5 and 3705.41 cm-1 for the hydroxyl groups; 1697.4 cm-1 for C=O; and 1141.8 cm-1 for C-O. The determination coefficient (R2) of Freundlich isotherm of CC and C-Ox were higher than Langmuir isotherm, and on the other hand, R2 of C-OxDs was shown oppositely.
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来源期刊
Molekul
Molekul Chemistry-Chemistry (all)
CiteScore
1.30
自引率
0.00%
发文量
31
审稿时长
4 weeks
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