Preparation and copper ions adsorption properties of thiosemicarbazide chitosan from squid pens

Lin, Yu Chih; Wang, Hongpeng; Gohar, Faryal; Ullah, M. H.; Zhang, Xiang; Xie, Dong-Fang; Fang, Hui; Huang, Jun; Yang, Jin‐yan

doi:10.1016/j.ijbiomac.2016.11.085

Cited by 52 publications

(11 citation statements)

References 46 publications

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“…To investigate the adsorption kinetics of SCOA2, the curve of adsorption capacities of SCOA2 for Hg 2+ versus adsorption time was plotted and the related experimental conditions and results were shown in Figure 8. In the first 2 h, for the presence of a large number of available binding sites in SCOA2, adsorption amount of SCOA2 for Hg 2+ increased rapidly [45], and from 2 h to 10 h, the increasing slowed down because the number of available sites gradually decreased [38]. When adsorption time was prolonged from 10 h to 30 h, the adsorption amount had little change and the adsorption process reached equilibrium.…”

Section: Adsorption Kineticsmentioning

confidence: 98%

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Preparation and Modification of Biomass-Based Functional Rubbers for Removing Mercury(II) from Aqueous Solution

et al. 2020

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Biomass-based functional rubber adsorbents were designed and prepared via inverse vulcanization and post-modification. The plant rubber was synthesized with sulfur and renewable cottonseed oil as well as various micromolecular modifiers with nitrogen-containing functional groups. Results showed that types of nitrogen-containing functional groups and dosages of modifiers had a significant impact on the adsorption capacities of the resulting polymers for Hg2+. Notably, when the mass ratio of 2-aminoethyl methacrylate (AEMA) to sulfur was 0.05, the resulting polymer polysulfide-co-cottonseed oil modified by AEMA (SCOA2) showed the highest adsorption capacity (343.3 mg g−1) among all the prepared samples. Furthermore, the Hg2+ removal efficiency of SCOA2 remained over 80% of its original value after five adsorption-desorption cycles. It demonstrated a promising case for utilizing cheap industrial by-products (sulfur) and renewable materials (cottonseed oil). The prepared functional rubber provides alternative approach for mercury removal in waste utilization and sustainable chemistry.

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Section: Adsorption Kineticsmentioning

confidence: 98%

“…Then, the residual concentration of Hg 2+ in the dilute solution was measured. The related experimental data were fitted using the pseudo-first-order (Equation (2)) and the pseudo-second-order (Equation (3)) [38]:…”

Section: Adsorption Kinetic Studymentioning

confidence: 99%

Preparation and Modification of Biomass-Based Functional Rubbers for Removing Mercury(II) from Aqueous Solution

et al. 2020

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“…The cost of raw chitosan is 0.2-0.6 USD per metric ton [191]. Modified forms of chitosan were studied for the removal of a wide range of metal ions and for both forms of arsenic [191][192][193][194][195]. It was shown that chitosan has a better affinity for the As(V) than As(III).…”

Section: Chitosanmentioning

confidence: 99%

Novel sorbents from low-cost materials for water treatment

Iakovleva

2020

Advanced Water Treatment

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“…Large quantities of heavy metal ions bioaccumulate throughout the food chain, where they threaten human health (Mishra et al 2012;Lin et al 2017b;Teodoro et al 2017). Copper is an essential trace element that is not easily degraded.…”

Section: Introductionmentioning

confidence: 99%

A slow pyrolysis biochar derived from Tetrapanax papyriferum petiole as an effective sorbent for removing copper ions from aqueous solution

Zhang

Guan

et al. 2019

BioRes

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Biochar derived from Tetrapanax papyriferum petioles at different pyrolysis temperatures was used to remove copper from aqueous solution. Abundant porous structures were observed with scanning electron microscopy, and transmission electron microscope images revealed a unique layered nanopore structure. A high pyrolytic temperature resulted in a biochar with a higher surface area, ash content, and mineral element content. The maximum adsorption capacity of T. papyriferum petiole biochar (TBC) was 182 mg/g. The Langmuir adsorption isotherm model and pseudo-second-order kinetics model were most suitable for describing the adsorption process, indicating that adsorption takes place at specific homogeneous sites within the adsorbent. The calculated ΔH° values indicated that the adsorption process was endothermic. The adsorption mechanism for TBC was attributed to precipitation, ion exchange, C-π interactions, and complexation. Thus, the biochar used in this study is a promising environmentally friendly and effective adsorbent for removing Cu2+ ions from an aqueous solution.

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Preparation and copper ions adsorption properties of thiosemicarbazide chitosan from squid pens

Cited by 52 publications

References 46 publications

Preparation and Modification of Biomass-Based Functional Rubbers for Removing Mercury(II) from Aqueous Solution

Preparation and Modification of Biomass-Based Functional Rubbers for Removing Mercury(II) from Aqueous Solution

Novel sorbents from low-cost materials for water treatment

A slow pyrolysis biochar derived from Tetrapanax papyriferum petiole as an effective sorbent for removing copper ions from aqueous solution

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