Ag-doped silicon-based nanospheres for the efficient capture and remove of iodide anions from solutions

Lithiothermic Reduced TiO2 for Efficient Adsorption of Li‐ion

“…The adsorption rate E (%), adsorption capacity q e (mg/g), distribution coefficient (K d , mL/g) and selective ratio (α) were calculated by using the following Eq. 9 and 10: [33] The adsorption rate:…”

Cuprous Oxide-Based Cationic Hydrogel by the Integration of Enrichment and Immobilization of Radioiodine (I–, IO3–) in Aqueous Solution

“…In addition, they discussed the related materials and mechanisms for bismuth-based materials to adsorb iodine anions in aqueous environment and capture iodine vapor, and provided some suggestions for neglected areas . Materials for removing iodide and iodate include layered double hydroxides, aerogels, and activated carbons. , Since Ag or Cu 2 O can interact with radioactive iodine (I – , IO 3 – ) to form insoluble substances, the iodine anions can be effectively enriched and solidified. ,− To efficiently remove I – and IO 3 – in the aqueous environment, some adsorbents were modified with silver or cuprous bases. For example, Li et al successfully synthesized a new Ag-doped silicon-based nanosphere (MSA) adsorbent through a layer-by-layer assembly method to capture radioactive iodide ions in an aqueous solution .…”

“…Materials for removing iodide and iodate include layered double hydroxides, aerogels, and activated carbons. , Since Ag or Cu 2 O can interact with radioactive iodine (I – , IO 3 – ) to form insoluble substances, the iodine anions can be effectively enriched and solidified. ,− To efficiently remove I – and IO 3 – in the aqueous environment, some adsorbents were modified with silver or cuprous bases. For example, Li et al successfully synthesized a new Ag-doped silicon-based nanosphere (MSA) adsorbent through a layer-by-layer assembly method to capture radioactive iodide ions in an aqueous solution . Elwakeel et al confirmed through adsorption kinetics, isothermal adsorption, and thermodynamic performance experiments that silver ions-modified thiourea/formaldehyde resin adsorbent has an efficient and fast adsorption effect on iodide ions in aqueous solution .…”

“…To avoid severe climate change and reduce greenhouse gas emissions, nuclear energy has been gradually developed as a low-carbon energy source. , However, safety problems can be encountered in the long-term operation of nuclear power plants, which can produce a large number of radionuclides. − Radioactive iodine ( 129 I) from the fission of uranium and plutonium is released into the environment during the spent nuclear fuel reprocessing and severe serious nuclear accidents. , In the nuclear waste solution, the 129 I predominantly exists as iodide (I – ) and iodate (IO 3 – ). 129 I has a long half-life ( t 1/2 ∼ 1.57 × 10 7 years), high aqueous solubility, mobility, and toxicity. − Therefore, the safe and effective removal of radioiodine is of great significance in radioactive waste management.…”

“…For example, Li et al successfully synthesized a new Ag-doped silicon-based nanosphere (MSA) adsorbent through a layer-bylayer assembly method to capture radioactive iodide ions in an aqueous solution. 10 Elwakeel et al confirmed through adsorption kinetics, isothermal adsorption, and thermodynamic performance experiments that silver ions-modified thiourea/ formaldehyde resin adsorbent has an efficient and fast adsorption effect on iodide ions in aqueous solution. 26 They prepared silver-based composites by loading silver into corresponding carrier materials, in which silver was used as the active center for adsorption and to further convert I − to AgI.…”