Bio‐sorbents from cassava waste biomass and its performance in removal of Pb²⁺ from aqueous solution

Abstract

Cassava xanthogenate and their derivatives, as adsorbents to remove Pb2+ from aqueous solution, are studied based upon orthogonal factorial design. The structural and thermal properties, adsorption performance as well as equilibrium‐kinetics are comprehensively investigated with multiple tools, such as Fourier transform infrared spectroscopy, thermal gravimetric analysis (TGA), and UV–visible spectrum technique. The influence of multiple parameters, including initial Pb2+ concentrations, compositions, pH values, and temperatures, on the adsorption performance is emphasized. The crosslinked cassava xanthogenate serves as an effective bio‐sorbent to remove Pb ions from aqueous solution, allowing regeneration in dilute acid solution. The findings in this study are beneficial for the development of adsorbents from cassava waste biomass and may contribute to environment recovery in “nature‐to‐nature” manner. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 39780.

Heavy metal adsorption ability of a new composite material based on starch strengthened with chemically modified cellulose

“…There are many well-known processes regarding the treatments of contaminated wastewaters like membrane filtration, 1-4 chemical precipitation, [5][6][7] electrocoagulation, [8][9][10][11][12] reverse osmosis, [13][14][15] adsorbtion, [16][17][18][19][20][21][22][23][24] ion exchange, [25][26][27] etc., all of them with their inherent advantages and disadvantages. At the same time, most of them are not suitable for developing countries due to huge cost investment in terms of use of chemicals, infrastructure, and operation.…”

Chemical modifications of lignocellulosic materials and their application for removal of cations and anions from aqueous solutions

“…For this reason, it is extremely important to find efficient methods to mitigate the side effects of the pretreatments that favor an increased adsorption capacity. Other studies involving the removal of metal ions and anions from aqueous solution can be found in Table and Table . As well as the synthesis parameters and reaction conditions are mentioned in Table .…”

A Review on Cassava Residues as Adsorbents for Removal of Organic and Inorganic Contaminants in Water and Wastewater

“…In the literature, various parts of cassava are reported to be adsorbents used in the removal of heavy metals, for example, zinc ( [10][11][12][13]), copper ([11, 13-21]), lead ( [20][21][22][23][24][25][26][27][28]), cobalt ( [29,30]), vanadium [30], chromium ([13, 17, 30, 31]), and cadmium ( [12,15,[32][33][34]), dyes such as rhodamine B [35], direct red [36], methylene blue ( [36][37][38][39][40]), methyl orange [40], and reactive dyes [41], antibiotics ([22, 42-44]), phosphorous [45], biodiesel purifcation [46], organic pollutants from industrial efuents ( [29,47,48]), and free fatty acid [49]. In addition, ZnO nanoparticles synthesized from cassava starch are used as adsorbents [50].…”