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TY  - JOUR
AU  -  Sengasu, Joseph W 
AU  - Philip , Joseph YN 
AU  - Kilulya, Kessy F 
PY  - 2024/10/02
Y2  - 2025/07/16
TI  - Adsorptive Performance of Composite of Sugarcane Bagasse Fibres and Multiwalled Carbon Nanotubes for Simultaneous Removal of Multi–pollutants from Wastewaters
JF  - Tanzania Journal of Science
JA  - Tanz. J. Sci.
VL  - 50
IS  - 3
SE  - Physical Sciences 
DO  - 10.4314/tjs.v50i3.9
UR  - https://tjs.udsm.ac.tz/index.php/tjs/article/view/2037
SP  - 522-540
AB  - &lt;p class=&quot;western&quot; align=&quot;justify&quot;&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;This paper reports on the performance of the prepared Sugarcane Bagasse Fibres – Multiwalled Carbon Nanotubes (SBF–MWCNTs) composite for simultaneous removal of Crystal Violet (CV), Pb(II), Cr(III), Cd(II) and Co(II) from the effluent using a fixed bed method. Different composites of SBF–MWCNTs biosorbent were prepared from mixtures of varied ratios of SBF and MWCNTs at 25 °C. The SBF–MWCNTs materials were characterized by FT-IR spectroscopy and thermogravimetric analysis. Crystallinity index and swelling behaviour of the materials were also determined. Thomas model linear equation was applied in the assessment of pollutants adsorption performance at different conditions. With a column height of 8 cm containing 1.5 g of SBF–MWCNTs, flow rate of 2.5 mL min&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;sup&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;-1&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/sup&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;, pH &amp;gt; 6, and pollutant initial concentrations of ≤25 mg/L, the SBF–MWCNTs composite containing 2% MWCNTs had higher pollutants adsorption capacity (mg/L), 6.61 ±&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt; 0.092 &lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;Pb(II), 4.78 ±&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt; 0.132&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt; CV, 4.58 ±&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt; 0.080 &lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;Cr(III), 4.09 ±&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt; 0.181&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt; Cd(II), 2.98 ±&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt; 0.230 &lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;Co(II). Whereas, that of unmodified fibres (SBF) were 5.53 ±&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt; 0.056 &lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;Pb(II), 4.48 ±&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt; 0.091 &lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;CV, 3.77 ±&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt; 0.072 &lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;Cr(III), 3.41 ±&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt; 0.050 &lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;Cd(II) and 2.42 ±&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt; 0.031&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt; Co(II). Statistical analysis at 0.05 significance level has shown that &lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;adsorption capacity of each contaminant by the &lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;SBF–MWCNTs is significantly higher than that of SBF.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt; &lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;These results indicate that SBF–MWCNTs composite is a potential biosorbent for the removal of multi–pollutants from aqueous systems.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
ER  -