Journal
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
Volume 9, Issue 1, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2020.104691
Keywords
Lignocellulosic material; Luffa fibres; Adsorption; Bio-composites; Pollutants
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This review paper highlights the excellent performance of Luffa and its composites in removing environmental pollutants, and analyzes the key factors affecting its efficiency. Characterization techniques such as SEM, FTIR, BET, XRD, EDAX, and TGA were used to study Luffa and its composites, and the results were compared with other investigations. The study suggests that Luffa-based composites have great potential for water decontamination and possess good applicability in removing various types of pollutants from aqueous solutions.
Luffa is an excellent biomaterial that has gained much attention since it is low-cost, available, environmentally friendly, non-toxic, porous and efficient for the removal of environmental pollutants, including dyes, pharmaceuticals, and heavy metals. This review provides an insight into the key factors, including contact time, pH, pollutant concentration, adsorbent dosage, and temperature that may affect the Luffa performance in removing contaminants. Thereafter, Luffa and its composites were characterized by SEM, FTIR, BET, XRD, EDAX, and TGA. This paper reviews the current state of research on the use of raw Luffa and modified Luffa, and compare the results with other investigations. It was found that Luffa - based composites might be great potential candidates for water decontamination. Adsorption equilibrium and kinetics were also studied and it was found that Langmuir/Freundlich and Pseudo-second order models were in great agreement for many studies. Results confirmed that Luffa and its composites possess good applicability in removing different types of pollutants from aqueous solutions.
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