Article
Engineering, Chemical
Yujiang Meng, Yudan Wang, Lijia Liu, Fuqiu Ma, Chunhong Zhang, Hongxing Dong
Summary: A highly effective uranium adsorbent with high specific surface area and efficient adsorption performance was prepared, showing high selectivity and recylability in simulated seawater. The study on influencing factors and adsorption kinetics provided insights for its potential application in uranium extraction.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Kaifu Yu, Yi Li, Xin Cao, Ruixiang Wang, Li Zhou, Linzhen Wu, Ningning He, Jia Lei, Dengjiang Fu, Tao Chen, Rong He, Wenkun Zhu
Summary: In this study, amidoxime-rich g-C3N4 material was successfully synthesized for photo-assisted uranium extraction from seawater. The material exhibited excellent photocatalytic activity and antibacterial properties, overcoming the limitation of uranium extraction caused by marine biofouling.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Min Zhao, Zhenpeng Cui, Duoqiang Pan, Fuyou Fan, Junhao Tang, Yameng Hu, Yang Xu, Pengcheng Zhang, Ping Li, Xiang-Yu Kong, Wangsuo Wu
Summary: A novel amidoxime-functionalized flower-like magnetic Fe3O4@TiO2 core-shell microspheres were designed and synthesized for efficient removal of U(VI) from aqueous solutions and seawater. The high adsorption capacity, stability, and reusability of the microspheres, along with their excellent selectivity, make them a promising material for uranium extraction. The material provides an effective and applicable solution for radioactive element elimination and enrichment.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Zhong Zhou, Qi Liu, Jiahui Zhu, Jingyuan Liu, Hongsen Zhang, Jing Yu, Rongrong Chen, Ying Li, Jun Wang
Summary: Amidoxime-group carbon nitride (NCN-AO) has better selectivity and uranium reduction ability, allowing for efficient extraction of uranium. NCN-AO can remove uranium with a removal rate of 99% in uranium solution, and it exhibits specific and selective adsorption of uranium.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Chemical
Donghua Jin, Ying Wang, Dalei Song, Jiahui Zhu, Jing Yu, Qi Liu, Jingyuan Liu, Rumin Li, Peili Liu, Jun Wang
Summary: Uranium adsorption from seawater offers a sustainable solution for future nuclear energy material supply. Researchers have developed a superantibacterial and knitted adsorbent with guanidine and amidoxime groups on bamboo strips to enhance uranium adsorption and resist biofouling. The grafting of guanidine groups improves hydrophilicity and anti-biofouling performance, while the amidoxime groups form a stable coordination structure with uranyl tricarbonate.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Chemistry, Physical
D. Wang, Z. Liu, Y. Yue, X. Xu, D. Cai, C. Han, J. Song, J. Xiao, H. Wu
Summary: Polyamidoxime (PAO)-based adsorbents have been studied extensively for uranium extraction from seawater, showing that pre-acid-activated PAO exhibits high uranium capture ability. By mixing with chitosan and covalently crosslinking, the PA-PAO/CS nanofibers demonstrate great potential for efficient U capturing.
MATERIALS TODAY ENERGY
(2021)
Article
Engineering, Environmental
Ying Wang, Zaiwen Lin, Jiahui Zhu, Jingyuan Liu, Jing Yu, Qi Liu, Rongrong Chen, Ying Li, Jun Wang
Summary: Efficiently capturing U(VI) from seawater has always been restricted by competitive adsorption from higher concentrations of V(V). In this study, a molecular-level uranyl-specific nano-holes were constructed using amidoximized natural bamboo strips, enabling the specific trapping of U(VI) from seawater with ultrahigh affinity and selective adsorption.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Qin Xudong, Tang Xiaohui, Ma Yu, Xu Hong, Xu Qing, Yang Weiting, Gu Cheng
Summary: In this study, a two-step covalent modification strategy was used to synthesize covalent organic frameworks (COFs) with high-density amidoxime chelate groups. The introduction of dense amidoxime groups played a crucial role in uranium adsorption, resulting in a COF with high adsorption capacity and strong affinity. This strategy could be extended to identify and remove different contaminants.
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
(2022)
Article
Materials Science, Multidisciplinary
Jason M. Harp, Robert N. Morris, Christian M. Petrie, Joseph R. Burns, Kurt A. Terrani
Summary: An overview of postirradiation examination results for uranium nitride kernels and coated particles irradiated in the High Flux Isotope Reactor shows low irradiation temperatures and relatively small burnup, with no significant irradiation induced changes observed.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Nuclear Science & Technology
Fang Wang, Qiu-Feng Wu, Yu-Rong Jiang, Chan Jin, Xiao-Hui Wang, Ben-Shang Zhang, Chun-Wang Ma
Summary: This article proposes a temperature sensor based on optical-fiber sensing technology to reduce radiation damage and improve temperature measurement accuracy in a radiation environment. Experimental results demonstrate that the sensor exhibits improved temperature sensitivity within a certain range and has excellent temperature repeatability. Furthermore, an increase in radiation intensity enhances the sensor's temperature sensitivity.
NUCLEAR SCIENCE AND TECHNIQUES
(2022)
Article
Chemistry, Applied
Mohamed Mohamady Ghobashy, I. M. Mousaa, Gharieb S. El-Sayyad
Summary: In this study, single and double-coated water-retention urea fertilizers were prepared by crosslinking urea with PAN and PAN-based PAAc hydrogels. The polymers were found to regulate urea release and exhibit good water-retention properties. Additionally, the coatings with hydrogel showed no antagonistic effect on plant growth-promoting rhizobacteria, making them safe for agricultural use.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Food Science & Technology
Huijin Heo, Jayashree Madhavan, Sangwon Eun, Hyunmook Jung, Hana Lee
Summary: The study evaluated the efficacy of a proprietary lutein, zeaxanthin, and rosemary formulation for dermal protection against UV irradiated skin dehydration. Results indicated that this formulation showed better skin protection and hydration effects compared to the placebo group.
PREVENTIVE NUTRITION AND FOOD SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Rong Li, Xinxin Feng, Mingxing Zhang, Zhe Xing, Guozhong Wu
Summary: This study explored the amidoximation of polymer sorbents in aqueous solution, which proved to be cost-effective, environmentally friendly, and achieved comparable uranium adsorption capacities compared to using mixed water-organic solvents. Additionally, a neutral NH2OH aqueous solution was found to significantly enhance the uranium adsorption capacities, and potassium hydroxide treatment was crucial for increased adsorption.
Article
Engineering, Chemical
Chenguang Yang, Kun Yan, Xin Wen, Peijun Cai, Guozhong Wu
Summary: This study prepared a high-performance polypropylene foam through radiation-induced grafting and supercritical CO2 foaming, demonstrating excellent thermal insulation and waterproof properties, which can be applied in lightweight insulation materials.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Xiaojun Ding, Zeyu Liu, Yusheng Zhang, Gang Ye, Jianfeng Jia, Jing Chen
Summary: A binary solvent synthetic strategy is proposed to construct molecule-based hydrogen-bonded organic frameworks (HOFs) with permanent ultra-micropores and surface polarization. The activated HOFs showed highly selective separation of CO2/N-2 under ambient temperature and pressure, making them potentially useful for gas separation applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Environmental
Xiao Xu, Chen Huang, Yangjie Wang, Xin Chen, Ziqiang Wang, Jiaguang Han, Minghong Wu, Gang Liu, Liangbin Li, Lu Xu, Hongjuan Ma
Summary: A new and functional PAO-BSPE membrane was successfully fabricated for Uranium extraction from seawater, exhibiting excellent hydrophilicity, good mechanical properties, high specific surface area, and mesoporous architecture and nano-channels that enhanced kinetics, capacity, and renewability. This membrane efficiently extracted uranium, even in the presence of high concentrations of co-existing ions, demonstrating improved efficiency and high selectivity in polymer adsorbents.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Zhenyan Ji, Fan Zhang, Hongbing Chen, Rongfang Shen, Weirong He, Zhe Xing, Guozhong Wu
Summary: This study investigated the free radicals generated in epoxy resin samples exposed to gamma irradiation in different environments, revealing that the radicals formed in air were more abundant than in vacuum. The radical concentration increased up to a dose of 500 kGy and approached saturation at 1000 kGy, with the radicals disappearing upon annealing.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Engineering, Environmental
Chen Huang, Lu Xu, Xiao Xu, Lin Ma, Hongliang Bao, Jian Liao, Jiejun Wang, Jiaguang Han, Gang Xu, Dongmei Huang, Bangjiao Ye, Hongjun Zhang, Minghong Wu, Xiaoyan Zhao, Hongjuan Ma
Summary: By constructing porous structure in nanofibers, the utilization of amidoxime (AO) groups was improved, resulting in high adsorption capacity for uranium (U) extraction from seawater. A tridentate binding model was used to stably bind uranyl ions. This study provides a new design idea for future development of novel adsorbents for U extraction from seawater.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Paper & Wood
Zhi Xiong, Yulong Li, Mingxing Zhang, Xuanzhi Mao, Rongfang Shen, Jiangtao Hu, Qianhong Gao, Minglei Wang, Guozhong Wu
Summary: The study presents a method for immobilizing graphitic carbon nitride onto cotton fabric using electron beam irradiation, resulting in a durable photocatalytic coating with excellent degradation activity. The immobilized coating remained stable even after multiple laundering cycles.
Article
Chemistry, Physical
Xiaojun Ding, Yi Xie, Qiang Gao, Yilin Luo, Jing Chen, Gang Ye
Summary: Constructing well-organized organic frameworks with tailor-made functionalities has the potential to enhance multi-domain applications. Hydrogen bonding is a type of weak intermolecular interaction, different from covalent bonding or metal-ligand coordination. Hydrogen-bonded organic frameworks (HOFs) assembled using hydrogen bonding have the advantage of decomposing and regenerating, improving processability and expanding applicability. This paper summarizes the basic building concepts of HOFs, including feasible hydrogen bonded motifs, effective molecular structures, and their emerging applications.
Article
Polymer Science
Xinxin Feng, Yulong He, Zhe Xing, Mingxing Zhang, Rong Li, Guozhong Wu
Summary: Aminated PE/PP NWF was synthesized through radiation grafting and ring-opening reaction, and its adsorption performance on Pt(IV) was investigated under different parameters. The results showed that the adsorbent had high adsorption capacity, good adsorption selectivity, and excellent performance over a wide pH range.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Physical
Fan Zhang, Zhenyan Ji, Qiang Zhang, Rongfang Shen, Zhe Xing, Guozhong Wu
Summary: This study investigated the species and decay behaviors of free radicals generated in COCs during radiation sterilization using electron spin resonance spectroscopy. It also proposed a free radical reaction mechanism for COCs under different post-processing conditions.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Article
Nuclear Science & Technology
Wan-Ning Ren, Xin-Xin Feng, Yu-Long He, Ming-Lei Wang, Wan-Feng Hong, Hong-Wei Han, Jiang-Tao Hu, Guo-Zhong Wu
Summary: Direct collection of uranium from low uranium systems via adsorption remains challenging. Fibrous sorbent materials with amidoxime (AO) groups are promising adsorbents for uranium extraction from seawater. The utilization of AO adsorption groups is improved by fabricating a branched structure containing AO groups on polypropylene/polyethylene spun-laced nonwoven (PP/PE SNW) fibers using grafting polymerization induced by radiation (RIGP). The adsorbent material shows a high adsorption capacity and good stability, demonstrating its potential for seawater uranium extraction.
NUCLEAR SCIENCE AND TECHNIQUES
(2023)
Article
Chemistry, Multidisciplinary
Xiaojun Ding, Yilin Luo, Wei Wang, Tongyang Hu, Jing Chen, Gang Ye
Summary: This study presents a new approach of using inorganic ammonium cations as hydrogen bond donors to regulate the assembly of carboxylic tectons and build robust hydrogen-bonded frameworks. The resulting frameworks exhibit permanent ultra-micropores and open oxygen sites, with diverse pore architectures achieved by bridging different building blocks with tetrahedral NH4+. The activated porous PTBA·NH4·DMF demonstrates remarkable selective sorption of CO2 over N2 and H2.
Article
Polymer Science
Chunlei Dong, Xuanzhi Mao, Qingru Liang, Minglei Wang, Maojiang Zhang, Jianbing Chen, Jiangtao Hu, Guozhong Wu
Summary: In this study, a novel organic-inorganic hybrid material (PMMA-HBPSi) derived from methyl methacrylate and hyperbranched polysiloxane was fabricated via gamma-radiation curing. The hybrid material exhibited improved thermal stability, optical characteristics, and dielectric properties, as well as reduced UV transmittance. The findings suggest that this new approach is suitable for developing high-performance organic glasses for optical, aviation, and electronic applications.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Physical
Qingshi Guo, Dean Shi, Chenguang Yang, Guozhong Wu
Summary: Efficient oil-water separation foam material was prepared through surface engineering with hydrophobic groups introduced onto the foam surface. The modified foam exhibited excellent hydrophobicity and oil removal rate, and maintained stability in a wide range of pH conditions.
Article
Chemistry, Physical
Minglei Wang, Qianhong Gao, Mingxing Zhang, Yulong He, Yumei Zhang, Rongfang Shen, Jiangtao Hu, Guozhong Wu
Summary: The study successfully immobilized cobalt ions on polypropylene nonwoven fabric through irradiation graft polymerization, creating efficient and stable reaction sites for activating peroxymonosulfate to degrade organic pollutants. The prepared catalyst exhibited efficient removal of dyes or antibiotics, paving the way for new research in terms of substrate size and catalytic processes.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)