Facile Synthesis of Fe3O4-N-[(3-Trimethoxysilyl)propyl]ethylenediamine Triacetic-acid Trisodium Salt and Adsorption of Sr 2+

Hu, Yaoqiang; Quan, Chaoming; Guo, Min; Ye, Xiushen; Wu, Zhijian

doi:10.12783/issn.1544-8053/13/s1/24

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“…1 (without contamination), which were kept as a control and as a blank, respectively ( Table 1). The application of chelating agents such as EDDS was based on previous papers [24,25].…”

Section: Effect Of Edds On the Adsorption Of CD And Znmentioning

confidence: 99%

Study on the Behavior and Removal of Cadmium and Zinc Using Taraxacum officinale and Gazania under the Application of Biodegradable Chelating Agents

et al. 2021

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The removal of cadmium (Cd) and zinc (Zn) from soil by phytoremediation was investigated using Taraxacum officinale and Gazania. A plant environmental control system was used to cultivate the plants. The effects of different biodegradable chelating agents (i.e., EDDS, HIDS, and GLDA), relative humidity, and other competitive metals on the adsorption of Cd and Zn were also studied. In addition, the approach for metal recovery was explored by extraction of metals from plants after phytoremediation using Gazania. The concentrations of Cd and Zn were determined by inductively coupled plasma mass spectrometry (ICP-MS). In addition, one-way analysis of variance (ANOVA) tests were performed.to determine significant differences between the experimental treatments adopted in this work. Consequently, the following main conclusions were obtained: (1) In the case of Taraxacum officinale, Cd and Zn could be removed even under the presence of other heavy metals. (2) By adding a chelating agent, the amount absorbed by the shoot generally increased.(3) In the case of Gazania, the concentration of Cd was higher in root than that in shoot, whereas the concentration of Zn was higher in the shoot than that in the root.(4) Taraxacum officinale was more suitable for phytoremediation of Cd than Gazania.(5) Cd and Zn could be extracted from plants by adding a low concentration of nitric acid. (6) The one-way ANOVA tests showed no statistically significant differences among the experimental treatments.

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“…1 (without contamination), which were kept as a control and as a blank, respectively ( Table 1). The application of chelating agents such as EDDS was based on previous papers [24,25].…”

Section: Effect Of Edds On the Adsorption Of CD And Znmentioning

confidence: 99%