Article
Chemistry, Multidisciplinary
Weihua Zhang, Chunlin Xu, Xinpeng Che, Ting Wang, Stefan Willfoer, Mingjie Li, Chaoxu Li
Summary: Continuous filtering adsorption using nanowood membranes shows great potential in uranium resource exploration and wastewater treatment, providing a sustainable and efficient route for extracting aqueous uranium.
Article
Chemistry, Analytical
Un-Chol Jon, Jong-Gil Im, Ho Song-Pak, Yong-Il An, Sun-Yong Om
Summary: The amidoximized polypropylene-acrylonitrile-acrylic acid (AOPP-AN-AAc) fibrous adsorbent was synthesized and used for uranium recovery from the simulated solution. The properties of the adsorbent were studied using spectroscopic and microscopic techniques, confirming the presence of functional groups and the lack of damage to the fiber surface. The maximum adsorption amount of U(VI) on the adsorbent was determined, and the adsorption experiments followed Langmuir adsorption isotherms.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2023)
Article
Engineering, Environmental
Shi-Cheng Liu, Ming-Bang Wu, Hao Ye, Lin Liu, Lu-Lin Ma, Juming Yao
Summary: The study introduces a method for uranium recovery from seawater using amidoximated cellulose as adsorbents, fabricated through two steps of homogeneous reactions. These adsorbents exhibit excellent properties in resisting marine pollutants and enhancing mass transfer performance.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Analytical
Mingzhu Cui, Siyu Xiang, Siyu Zhang, Ting Long, Zhenghang Luo, Haijun Yang
Summary: This paper synthesized PCCP-AO adsorbent and characterized its properties, showing higher adsorption capacity, faster adsorption rate, and better selectivity compared to PCCP. In addition, PCCP-AO demonstrated good reusability.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2021)
Article
Engineering, Environmental
Animesh Jana, Anand Unni, Shanmuk Srinivas Ravuru, Abhijit Das, Diptendu Das, Sujoy Biswas, H. Sheshadri, Sirshendu De
Summary: By intercalating and cross-linking in situ, a novel polymer intercalated hybrid layered double hydroxide (LDH) efficiently adsorbs and selectively extracts uranium from alkaline leach liquor.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Rinez Thapa, Arezoo Rahmani, Petri Turhanen, Antti Taskinen, Tuomo Nissinen, Raisa Neitola, Jouko Vepsalainen, Vesa-Pekka Lehto, Joakim Riikonen
Summary: A novel nanostructured adsorbent was successfully employed to selectively remove uranium from tailing produced by processing real ore samples, demonstrating high selectivity towards uranium and stability in repeated adsorption/desorption cycles. The adsorbent, consisting of bisphosphonate ligands grafted on stable carbonized surfaces of mesoporous silicon, showed potential for industrial applications with the ability to capture and release uranium efficiently.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Akram A. Al-Absi, Mohanned Mohamedali, Axelle Domin, Anne M. Benneker, Nader Mahinpey
Summary: This study demonstrates the synthesis of an amine-based sorbent with high CO2 capture performance using class III supported materials. Various experiments were conducted at different temperatures and relative humidities, showing that higher moisture content enhances CO2 capture efficiency, while higher temperatures decrease CO2 uptake.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Textiles
Fatemeh Ashrafi, Mahmoud Firouzzare
Summary: A handmade forcespinning device was developed for preparing PAN and PAN-GO nanofibers, which showed a maximum adsorption capacity of 345.084 mg/g for uranium ions. The nanofibers followed S-shaped kinetics for adsorption over extended periods, with a regression coefficient of 0.999. Selectivity studies indicated that PAN-GO nanofibers had a preference for adsorbing uranium ions over Fe(II), Ni(II), Co(II), and V(V).
FIBERS AND POLYMERS
(2021)
Article
Chemistry, Physical
Xu Zhang, Renjuan Liu, Hai Wang, Longcheng Liu, Chengtao Yue
Summary: In this study, a series of phosphate-containing mesoporous carbon (PC) were successfully fabricated and they showed high content phosphate group, large specific surface area, and tunable mesoporous structure. The PC exhibited efficient adsorption of uranium at a wide pH range, with a maximum uptake capacity of 928 mg g -1, ranking as one of the most effective adsorbents. The mesoporous structure of PC allowed for rapid adsorption equilibrium within 60 seconds and excellent adsorption selectivity. Furthermore, the PC showed good recyclability and could be used for dynamic column adsorption of uranyl (VI) ion from uranium-containing solution. The excellent adsorption performances of PC highlight their great potential in uranium extraction.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Analytical
Yan Li, Ying Dai, Zhi Gao, Zhuyao Li, Feiqiang He, Li Xu, Qinqin Tao
Summary: This study successfully prepared a mesoporous biomass carbon adsorbent derived from chemically modified Luffa with task-specific amidoxime group. The adsorbent showed high adsorption capacity and competitive adsorption ability, which was verified using various analysis methods. The effects of operational parameters on the adsorption of U(VI) with the adsorbent were investigated. The study not only expanded the application fields of Luffa biomass, but also enriched the list of uranium adsorbents.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2022)
Article
Nuclear Science & Technology
Pegah Khajavi, Ali Reza Keshtkar, Mohammad Ali Moosavian
Summary: The study involved the adsorption of U(VI) ions from aqueous solutions onto a novel amidoximated modified calcium alginate bead with entrapped functionalized SiO2 nanoparticles. The composite adsorbent showed significantly increased uranium adsorption capacity, indicating promising potential for water treatment applications. Experimental results and analyses supported the effectiveness and feasibility of the adsorbent for U(VI) ion removal.
PROGRESS IN NUCLEAR ENERGY
(2021)
Article
Chemistry, Analytical
Bingyu Zhu, Le Li, Zhongran Dai, Shuangyang Tang, Deshuai Zhen, Lin Sun, Lei Chen, Chen Tuo, Ziwei Tang
Summary: In this study, a novel composite hydrogel bead (PSH) with high selective adsorption capacity and excellent regeneration ability for uranium(VI) was prepared. The maximum adsorption amount can reach 133.33 mg g(-1). This research demonstrated that PSH has a broad prospect of application in the field of repairing uranium-containing wastewater.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2022)
Article
Engineering, Environmental
Ying Wang, Zaiwen Lin, Jiahui Zhu, Jingyuan Liu, Jing Yu, Rongrong Chen, Peili Liu, Qi Liu, Jun Wang
Summary: A mixing melting method was proposed to prepare ultra-high flexibility and different proportions DAMN modified EAA resin film. The dense film structure was transformed into a porous structure with excellent adsorption performance. A hypothesis was proposed to explain the mechanism behind the improved adsorption performance of the material.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Chemical
Siqi Huang, Yong Zhang, Bingyu Mei, Xiaoyu Tian, Wenkun Zhu, Jun Liao, Nan Sun
Summary: The mesoporous Si-Fe-GO composite was prepared by sol-gel method and exhibited strong uranium-chelating ability, fast uranium adsorption kinetics, and high uranium adsorption capacity in the static adsorption process. The composite followed pseudo-second-order kinetic and Langmuir isotherm models, indicating monolayer chemical adsorption. The composite also showed tolerance to coexisting ions and good regeneration ability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Jin Li, Kai Tuo, Congbin Fan, Gang Liu, Shouzhi Pu, Zhijian Li
Summary: This study presents a novel method for efficient extraction of uranium from seawater using a newly designed amidoximated metal-organic framework. The framework exhibits excellent adsorption capacity and selectivity due to the abundant multiaffinity sites and unique porous structure. The study highlights the potential applications of metal-organic frameworks in uranium extraction from the ocean.
