Recovery of chromium(VI) from hydrochloric acid liquors using the resin Dowex 1x8

Coedo, Aurora Gómez; López, María Teresa Dorado; Padilla, Isabel

doi:10.3184/030823402103171465

Cited by 5 publications

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“…Due to rapid technological developments and industrialization especially in developing countries, people both experience a contribution for their comfortable lives and are exposed to important environmental problems [1][2][3][4]. Presence of heavy metals in the environment, which are known to have atomic weights higher than 63.5 and specific gravity higher than 5.0, is very important for human beings and living things in terms of their toxicity and carcinogenicity.…”

Section: Introductionmentioning

confidence: 99%

Alternative Composite Nanosorbents Based on Turkish Perlite for the Removal of Cr(VI) from Aqueous Solution

Edebali

2015

Journal of Nanomaterials

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New nanocomposite sorbents were synthesized and used for Cr(VI) removal from aqueous solution by modifying Turkish perlite withα-MnO2(PAM) andγ-Fe2O3(PGI) nanoparticles. Nanocomposite sorbents were characterized using scanning electron microscopy (SEM) and FTIR. The effects of several parameters such as contact time, amount of sorbent, pH, and concentration were investigated and it was found that the sorption capacity for Cr(VI) was found to be highly pH dependent. Also the experimental data were evaluated in terms of different isotherm models. The data of PGI were well fit to DR isotherm model whereas PAM data were well described with Temkin isotherm model. The sorption capacities were found to be 8.64 and 7.6 mg g−1for PGI and PAM, respectively. This confirms that these nanocomposites retain the constituent nanoparticle properties while being macroscopic particles suitable for chromium removal in water treatment.

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Section: Introductionmentioning

confidence: 99%