Removal of toxic heavy metal by a cost-free and eco-friendly BPAC nanoadsorbent
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Author |
Khairiah Khairiah, Hajar Mawaddah, Jafri Haryadi, Ridwanto Ridwanto, Mohd. Awang Kechik, Ahmad Fudholi and Islamiani Safitri
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e-ISSN |
1819-6608 |
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On Pages
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2678-2691
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Volume No. |
18
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Issue No. |
24
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Issue Date |
February 29, 2024
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DOI |
https://doi.org/10.59018/1223320
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Keywords |
BPAC nanoadsorbent, heavy metal, remediation, polluted water, activated carbon.
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Abstract
Water is a very important human need. In Indonesia, particularly on a large scale, the provision of clean and
hygienic water is still centered in metropolitan areas and is run by city drinking water organizations. Upon examination of
water samples taken from one of the sources, it was discovered that Fe, Mn, Zn, and Pb heavy metal concentrations (1.475,
1.684, 19.635, and 0.294 mg/L) exceeded the requirements for clean water for hygienic and sanitary reasons. Comparing
adsorption to other methods, it is generally the easier, more efficient, cost-effective, environmentally friendly, and simple
to use way. Banana peel-activated carbon (BPAC), banana peel-activated carbon chitosan (BPACh), banana peel
glutaraldehyde activated carbon (BPACGl), and banana peel-activated carbon EdTA (BPACEd) have all been used in the
synthesis of BPAC nanoadsorbents both without and with additives. According to the results of the AAS analysis, BPACh
nanoadsorbents had a greater adsorption percentage than pure BPAC and other materials with additions. BPACh's crystal
size was found to range from 7.5 nm at low temperature to 28.5 nm at high temperature, according to structural
characterization. Aggregation was detected by surface morphological characterization, and the BPACh material's
maximum carbon purity was 88.15%. Contact time and solution pH have an impact on adsorption. At a contact duration of
30 minutes, a stirring speed of 200 rpm, and a solution pH of 6 with 76.97%, the best adsorption took place. Toxic heavy
metals can be removed more effectively with BPACh nanoadsorbents.
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