Highly efficient removal of uranium from highly acidic media achieved using a phosphine oxide and amino functionalized superparamagnetic composite polymer adsorbent

2020 ◽  
Vol 8 (21) ◽  
pp. 10925-10934 ◽  
Author(s):  
Shiao Zhang ◽  
Dingzhong Yuan ◽  
Qinghua Zhang ◽  
Yun Wang ◽  
Yan Liu ◽  
...  

The magnetic adsorbent Fe3O4/P(DMAA–DMP) prepared by distillation-precipitation polymerization not only showed an outstanding adsorption efficiency for uranium in highly acidic solution, but had an excellent acid resistance.

Author(s):  
Shiao Zhang ◽  
Dingzhong Yuan ◽  
Jizhou Zhao ◽  
Guangyuan Ren ◽  
Xiaohong Zhao ◽  
...  

Recovery of uranium from strong acidic solution using magnetic nanoparticles as adsorbents is very important for sustainable nuclear energy, due to their superparamagnetic character and high adsorption efficiency for uranium....


RSC Advances ◽  
2019 ◽  
Vol 9 (69) ◽  
pp. 40546-40552 ◽  
Author(s):  
Zhiming Chen ◽  
Jiaojiao Song ◽  
Qingpeng Zhu ◽  
Zhiguo Li ◽  
Renchun Yang

Core–shell Fe3O4@PVBC–TMT nanoparticles were fabricated and served as a valid magnetic adsorbent for the removal of heavy metals ions.


2018 ◽  
Vol 77 (5) ◽  
pp. 1313-1323 ◽  
Author(s):  
Jianjun Zhou ◽  
Xionghui Ji ◽  
Xiaohui Zhou ◽  
Jialin Ren ◽  
Yaochi Liu

Abstract A novel magnetic bio-adsorbent (MCIA) was developed, characterized and tested for its Cd(II) removal from aqueous solution. MCIA could be easily separated from the solution after equilibrium adsorption due to its super-paramagnetic property. The functional and magnetic bio-material was an attractive adsorbent for the removal of Cd(II) from aqueous solution owing to the abundant adsorption sites, amino-group and oxygen-containing groups on the surface of Cyclosorus interruptus. The experimental results indicated that the MCIA exhibited excellent adsorption ability and the adsorption process was spontaneous and endothermic. The adsorption isotherm was consistent with the Langmuir model. The adsorption kinetic fitted the pseudo-second-order model very well. The maximum adsorption capacity of Cd(II) onto MCIA was 40.8, 49.4, 54.6 and 56.6 mg/g at 293, 303, 313 and 323 K, respectively. And the MCIA exhibited an excellent reusability and impressive regeneration. Therefore, MCIA could serve as a sustainable, efficient and low-cost magnetic adsorbent for Cd(II) removal from aqueous solution.


RSC Advances ◽  
2015 ◽  
Vol 5 (8) ◽  
pp. 5904-5912 ◽  
Author(s):  
Hongsen Zhang ◽  
Qi Liu ◽  
Jun Wang ◽  
Jingyuan Liu ◽  
Huijun Yan ◽  
...  

Preparation of a magnetic adsorbent for uranium with rapidly and effectively adsorption characteristics via sonochemical and in situ growth method.


2021 ◽  
Author(s):  
Qinghua Zhang ◽  
Shiao Zhang ◽  
Jizhou Zhao ◽  
Peng Wei ◽  
Changfu Wang ◽  
...  

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...


2021 ◽  
Author(s):  
Jian-Qiang Liu ◽  
Yuyu Zhong ◽  
Chen Chen ◽  
Si Liu ◽  
Chengyu Lu ◽  
...  

Many effluents contain various antibiotics commonly, where the simultaneous removal of them is a big challenge. In this study, the magnetic biocomposite (eggshell-zeolitic imidazolate framework) was designed and synthesized via...


2019 ◽  
Vol 355 ◽  
pp. 159-169 ◽  
Author(s):  
Liang-ping Xiong ◽  
Kai Lv ◽  
Mei Gu ◽  
Chu-ting Yang ◽  
Feng-cheng Wu ◽  
...  

2015 ◽  
Vol 3 (30) ◽  
pp. 15755-15763 ◽  
Author(s):  
Long Kong ◽  
Lili Yan ◽  
Zan Qu ◽  
Naiqiang Yan ◽  
Liang Li

Taking advantage of high adsorption capacity and efficient magnetic-separation, CD-Fe3S4 can be a promising magnetic adsorbent for Pb(ii) removal.


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