Adsorption of uranium(VI) from aqueous solution using phosphonic acid-functionalized silica magnetic microspheres

Abstract The alkali-activation of titanium (Ti) surfaces performed in a heated sodium hydroxide (NaOH) aqueous solution, results in a porous layer rich in hydroxyl (OH) groups, the structure and porosity of which strongly depend on the reaction time and NaOH concentration used. In this study, a polymerization initiator is covalently grafted on the alkali-activated Ti substrates by using a phosphonic acid as coupling agent and the resulting surfaces are used as scaffolds to drive the growth of tethered poly(methyl methacrylate) (PMMA) chains via a surface initiated atom transfer radical polymerisation (SI-ATRP). A close-up investigation of how different treatment times (1 h, 3 h, 6 h, 12 h, and 24 h) and NaOH concentrations (0.1 M, 0.5 M, 1 M, 2 M, and 5 M) affect the final PMMA morphology and thickness are presented.

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Unexpected ultrafast and highly efficient removal of uranium from aqueous solution by phosphonic acid and amine functionalized polymer adsorbent

New Journal of Chemistry ◽

10.1039/d1nj00218j ◽

2021 ◽

Author(s):

Qinghua Zhang ◽

Shiao Zhang ◽

Jizhou Zhao ◽

Peng Wei ◽

Changfu Wang ◽

...

Keyword(s):

Aqueous Solution ◽

Phosphonic Acid ◽

Environmental Safety ◽

The Novel ◽

Important Work ◽

Efficient Removal ◽

Novel Technologies ◽

Resource Sustainability ◽

Amine Functionalized ◽

Polymer Adsorbent

It is still an important work to develop the novel technologies for the highly extraction of uranium from aqueous solution for resource sustainability and environmental safety. Herein, a novel phosphonic...

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Removal of Ag(I) from aqueous solution by thiourea-functionalized silica gel: experimental and theoretical study

10.5004/dwt.2019.23916 ◽

2019 ◽

Vol 151 ◽

pp. 307-314 ◽

Cited By ~ 4

Author(s):

Zhendong Zhang ◽

Xingrong Liu ◽

Ke Wang ◽

Yuzhong Niu ◽

Hou Chen ◽

...

Keyword(s):

Aqueous Solution ◽

Silica Gel ◽

Theoretical Study ◽

Functionalized Silica

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Adsorption characteristics of haloacetonitriles on functionalized silica-based porous materials in aqueous solution

Journal of Hazardous Materials ◽

10.1016/j.jhazmat.2011.06.032 ◽

2011 ◽

Vol 192 (3) ◽

pp. 1210-1218 ◽

Cited By ~ 25

Author(s):

Panida Prarat ◽

Chawalit Ngamcharussrivichai ◽

Sutha Khaodhiar ◽

Patiparn Punyapalakul

Keyword(s):

Aqueous Solution ◽

Porous Materials ◽

Functionalized Silica ◽

Adsorption Characteristics

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Synergistic Extraction and Selective Removal of Cu2+from Aqueous Solution Using Magnetic Nanoparticles Coated with Mixtures of Sodium Oleate and Saponified 2-Ethylhexyl Phosphonic Acid Mono-2-ethylhexyl Ester

Industrial & Engineering Chemistry Research ◽

10.1021/ie200792j ◽

2011 ◽

Vol 50 (20) ◽

pp. 11698-11705 ◽

Cited By ~ 12

Author(s):

Baohui Zhu ◽

Nan Ma ◽

Dongbei Wu ◽

Yanhong Sun ◽

Wenjun Li

Keyword(s):

Aqueous Solution ◽

Magnetic Nanoparticles ◽

Sodium Oleate ◽

Phosphonic Acid ◽

Selective Removal ◽

Synergistic Extraction

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Facile method for the synthesis of Fe3O4@HCP core–shell porous magnetic microspheres for fast separation of organic dyes from aqueous solution

RSC Advances ◽

10.1039/c6ra05585k ◽

2016 ◽

Vol 6 (53) ◽

pp. 47530-47535 ◽

Cited By ~ 11

Author(s):

Long Pan ◽

Meng-Ying Xu ◽

Zi-Lu Liu ◽

Bi-Bai Du ◽

Kun-Hao Yang ◽

...

Keyword(s):

Aqueous Solution ◽

Specific Surface ◽

Adsorption Capacity ◽

Surface Area ◽

Specific Surface Area ◽

Organic Dyes ◽

Magnetic Microspheres ◽

Core Shell ◽

Magnetic Microsphere ◽

Fast Separation

A novel type of porous magnetic microsphere (Fe3O4@HCP) was firstly synthesized and possesses a high Brunauer–Emmett–Teller specific surface area and excellent adsorption capacity for organic dyes.

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