Review
Engineering, Chemical
Parveen K. Verma, Prasanta K. Mohapatra
Summary: The article presents the latest techniques for separating radio-ruthenium from radioactive waste, based on the speciation of ruthenium in the system and various separation methods. While most of the published literature is based on synthetic feeds, it provides important insights on separating radio-ruthenium from different types of radioactive wastes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Jiahe Zhang, Wenyu Feng, Huazhen Cao, Huibin Zhang, Guoqu Zheng
Summary: This study explored a highly selective and efficient oxidation system for the recovery of rhenium resources from Re-rich arsenic sulfide slag. The effects of H2O2 dosage, initial H2SO4 concentration and leaching temperature on the extraction efficiency were investigated. The results showed that the most favorable conditions for high Re extraction efficiency were determined. The phase transitions of the main constituents of the slag were analyzed. Kinetic analysis revealed that the leaching process is controlled by chemical reaction.
Article
Green & Sustainable Science & Technology
Shuai Li, Jianguang Yang, Jiahui Wang, Bo Han, Hongliang Zhang, Shenghai Yang, Yongming Chen
Summary: Traditional acidic phosphate extractants exhibit poor extraction performance under high-acid conditions and require saponification pretreatment. We synthesized an efficient p-tert-octyl phenyl phosphate (PTOPP) extractant suitable for a high-acid system based on phenyl substitution and carbon-chain design. PTOPP significantly improves the zinc extraction performance and achieves a remarkable enrichment effect without saponification pretreatment.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Chemical
Tiago Fernandes de Oliveira, Jorge Alberto Soares Tenorio, Denise Crocce Romano Espinosa
Summary: This paper focuses on the processing technologies for the exploitation and purification of Nb and Ta from primary and secondary ore sources. Fusion and leaching processes, along with solvent extraction and ion exchange technology, are commonly used in hydrometallurgical strategies to obtain mixed Nb and Ta products or separated compounds with a desired industrial purity. The use of organic or different mineral acids instead of fluoride-based acids allows the use of tertiary amines as organic extractants, providing an innovative and environmentally friendly strategy for separation and purification of Nb and Ta. Ion exchange technology also offers a way to obtain highly pure Nb and Ta compounds from low-grade sources. The paper provides an overview of recent literature on these hydrometallurgical processes and strategies.
MINERALS ENGINEERING
(2023)
Review
Chemistry, Multidisciplinary
Weixiang Xiao, Duoqiang Pan, Zhiwei Niu, Yang Fan, Sirui Wu, Wangsuo Wu
Summary: This article summarizes the evolution of high-pressure ion exchange chromatography and the related research progress in ion exchange equilibrium and separation technology. The prospects for application of high-pressure ion exchange chromatography to rare earth elements, actinide elements, and isotope separation are discussed.
CHINESE CHEMICAL LETTERS
(2022)
Article
Engineering, Chemical
A. D. Pant, R. Ruhela, C. Limje, M. Vartak, A. K. Yadav, Anil S. Kumar, A. K. Singh, S. N. Jha, D. Bhattacharya, V Kain, B. S. Tomar
Summary: The novel methyl triphenyl phosphonium nitrate (MTPN) polymeric resin offers promising potential for the selective separation of Tc from aqueous streams due to its easily scalable synthesis route. Its fast sorption kinetics, high distribution ratio, and excellent selectivity for Tc make it highly advantageous for Tc separation and recovery. Various analytical techniques were used to decipher the interactions responsible for its excellent uptake and high selectivity for Tc.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Engineering, Chemical
Hossein Aghajani, Fardin Gheshlaghi Soflaei
Summary: This research introduces the concept of the interaction coefficient in solvent extraction. The main parameters for rhenium extraction were determined to be the organic phase to aqueous phase ratio, TBP concentration, and pH. Experiments were designed using Response Surface Method and Minitab software. The results showed a dependence between pH, O/A phase ratio, and TBP concentration, with rhenium extraction reaching a maximum of 93.8% and molybdenum extraction averaging around 40% under certain conditions.
MINERALS ENGINEERING
(2022)
Article
Metallurgy & Metallurgical Engineering
Thi Thu Huong Nguyen, Man Seung Lee
Summary: A hydrometallurgical process is proposed for recovering base metals from spent lithium-ion batteries. The process involves steps such as precipitation, solvent extraction, and oxidative precipitation to effectively separate Ni, Co, Cu, Mn, and Fe. It offers advantages such as low energy requirements and high purity products.
Article
Chemistry, Applied
Yi Zhang, Weidong Guo, Donghao Liu, Jie Xu
Summary: The novel ionic liquids synthesized in this study show excellent extractability and selectivity for Nd(III) and Sc(III), as well as outstanding separation properties between rare-earth and first row transition-metal ions. The extraction mechanism indicates that the rare-earth complex extracted in the ionic liquid phase is structurally similar to those obtained with neutral extractants, providing a new approach for the future recycling of rare-earth metals.
JOURNAL OF RARE EARTHS
(2021)
Article
Engineering, Chemical
Zidong Tan, Yong Zhen, Chang Wei, Xin Jin, Xingbin Li, Gang Fan, Xingguo Luo
Summary: In this study, germanium was selectively extracted using an organic phase containing YW100, D2EHPA, N235, and kerosene. The extraction process achieved a high extraction ratio and the addition of N235 improved the phase separation performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Chemistry, Physical
Xiaohua Jing, Zhumei Sun, Dandan Zhao, Xiaoning Tang, Wenjing Lv, Yunfeng Shi
Summary: In this study, novel ionic liquids were synthesized and their single-stage extraction performance and multi-stage cross flow extraction performance for metal ion separation were investigated. Among them, [C4H9NH3][Cyanex 272] showed good selective extraction and separation, and can be used for the recovery of Mn2+, Co2+, and Ni2+ from spent ternary lithium batteries.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Felipe Olea, Matias Valenzuela, Elsie Zurob, Benjamin Parraguez, Ricardo Abejon, Rene Cabezas, Gaston Merlet, Ricardo Tapia, Julio Romero, Esteban Quijada-Maldonado
Summary: In this work, selective solvent extraction (SX) of molybdenum (Mo) and rhenium (Re) from a synthetic pregnant leach solution (PLS) using nine different hydrophobic eutectic solvents (HES) was studied. The experiments showed that only TOPO-based and N8881-Cl-based HES achieved selective extraction without emulsions, third phases or precipitates. The results indicated that HES could be attractive for a more sustainable mining industry.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Analytical
Jia-Xin Qi, Cheng-Rong Zhang, Xiao-Juan Chen, Shun-Mo Yi, Cheng-Peng Niu, Jin-Lan Liu, Li Zhang, Ru-Ping Liang, Jian-Ding Qiu
Summary: In this study, a novel conjugated microporous polymer was used as a fluorescent sensor for the detection of radioactive Tc-99. It showed an ultrafast response time and an ultralow detection limit. The polymer also had a high specific surface area, enabling the simultaneous detection and removal of the radioactive contaminant.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Fan Guo, Xiaoli Xi, Liwen Ma, Zhuanghua Nie, Zuoren Nie
Summary: The research focuses on using modified D301 resin to adsorb and separate molybdenum from tungstate solution, achieving a high sorption capacity and separation coefficient. The sorption process follows Langmuir isotherm models and quasi-second-order kinetic model, indicating stable chemical sorption. Desorption experiments showed effective release of molybdenum from the resin, leading to better separation of tungsten and molybdenum after three-stage sorption-desorption process.
Review
Engineering, Chemical
Subbu Venkata Satyasri Harsha Pathapati, Michael L. Free, Prashant K. Sarswat
Summary: To meet the demands of modern society, low-cost and high-performance materials are needed, and the approach to design them needs to change. Rare earth elements (REEs) play a crucial role in achieving these objectives by enhancing material properties. The separation of REEs is still important due to their subtle variations in chemical and physical characteristics.
Article
Chemistry, Multidisciplinary
Yin Wang, Lei Zhang, Yunhui Yang, Ping Zhang, Zhenting Du, Congyang Wang
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2013)
Article
Chemistry, Organic
Dexin Xia, Yin Wang, Zhenting Du, Qi-Yu Zheng, Congyang Wang
Article
Chemistry, Organic
Zhenting Du, Yong Li, Yin Wang, Lichun Ding, Jinming Gao
SYNTHETIC COMMUNICATIONS
(2010)
Article
Chemistry, Multidisciplinary
Yin Wang, Yunhui Yang, Congyang Wang
CHINESE JOURNAL OF CHEMISTRY
(2019)
Article
Engineering, Chemical
Haolong Wang, Tengfei Cui, Jixue Sui, Pavle Mocilac, Yin Wang, Zhijun Guo
Summary: The asymmetric alkyl-substituted DAPhens showed higher affinity for UO22+ compared to symmetric analogues, likely due to decreased steric hindrance from methyl in the terminal groups. This was confirmed through the crystal and molecular structure of the solid-state complex, supporting their potential application as selective ligands.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Organic
Lei Zhang, Yin Wang, Yunhui Yang, Ping Zhang, Congyang Wang
ORGANIC CHEMISTRY FRONTIERS
(2020)
Article
Chemistry, Multidisciplinary
Qian Wu, Yubo Cui, Guifeng Xia, Jinlong Yang, Shuming Du, Xinhong Xiong, Li Yang, Dong Xu, Xu Deng, Jiaxi Cui
Summary: Passive daytime radiative cooling (PDRC) technology, while promising for global spacing cooling, faces limitations in practical application due to reduced cooling effectiveness caused by wear and dirt contamination. Researchers have developed a renewable armor structure using fluorinated hollow glass microspheres to enhance the anti-fouling and cooling properties of PDRC coatings. The coatings exhibit high solar reflectance and thermal emittance, leading to significant temperature reduction below ambient temperature.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Qiang Bei, Bei Zhang, Kaifeng Wang, Shiming Zhang, Guichuan Xing, Clement Cabanetos
Summary: The power conversion efficiency (PCE) of organic solar cells (OSCs) has reached 20% in recent years, thanks to the advantages of organic photoactive materials. Benzothiadiazole (BT) has attracted significant research attention as a building block of OSCs. OSCs based on BT structure have shown diversity, and the increasing PCE values indicate a promising future for OSCs. This review analyzes the progress made in the last decades, focusing on effective BT small-molecules and BT polymers for OSCs. The structure-property relationships, donor-acceptor matching criteria, and morphology control approaches are discussed. The remaining challenges and a personal perspective on the future advancement of OSCs are summarized.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Rong He, Dandan Tang, Ningge Xu, Heng Liu, Kun Dou, Xuejun Zhou, Fabiao Yu
Summary: Nasopharyngeal carcinoma (NPC) is a common malignant tumor of the head and neck, with a high incidence in China and Southeast Asian countries. In this study, a novel near-infrared fluorescent probe, SNAFL-GSH, was designed and synthesized for the detection of glutathione (GSH). The probe showed selective detection of GSH and the ability to distinguish normal and cancer cells. It has great potential for application in the diagnosis and evaluation of NPC.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Zhukang Guo, Baijiang Jin, Yile Fang, Lian Jin, Song Li, Yan Deng, Zhu Chen, Hui Chen, Yuanying Zhang, Rabia Usman, Nongyue He
Summary: This study isolated primary cells that can be stably passaged from spontaneous tumors of genetically engineered pancreatic ductal adenocarcinoma model mice and used an autonomously developed automated screening instrument for efficient nucleic acid aptamer screening. The obtained aptamers were affinity verified at the cellular level. The study also investigated the impact of cell growth environment difference on the recognition ability of aptamers and confirmed the targeting ability and drug loading ability of the aptamer.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Zhongshan Yang, Qiqi Zhang, Hui Song, Xin Chen, Jiwei Cui, Yanhui Sun, Lequan Liu, Jinhua Ye
Summary: Methane chemistry is a significant area of research in catalysis. Converting methane into value-added chemicals is desirable but challenging due to its high C-H bonding energy and lack of pi bonding or unpaired electrons. Photocatalytic partial oxidation of methane to liquid oxygenates is a promising technology for achieving high efficiency and selectivity under mild conditions. The choice and activation of oxidants are crucial for its performance.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Peng Shan, Jing Liao, Jiayi Li, Chengyan Wang, Jie Zhou, Linqiang Mei, Yunlu Dai, Qiang Wang, Wenyan Yin
Summary: This study reports an oral radioprotectant Gel@GYY that combines a gelatin-based hydrogel and a pH-responsive hydrogen sulfide donor. Gel@GYY has excellent adhesion and sustained release properties, allowing it to release H2S in the gastrointestinal tract and effectively scavenge free radicals induced by radiation. It also reduces inflammation and has biodegradable properties.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Lu Liu, Ziyi Liu, Jingnan Cui, Guiling Ning, Weitao Gong
Summary: The development of new metal-free heterogeneous catalysts has been the subject of extensive research. In this study, a new Troger's base (TB)-derived porous organic polymer (POPs) was designed and prepared by integrating multifunctional monomers. The resulting polymer, which combines the advantages of pillar[5]arene macrocycle and TB moiety, exhibited enhanced catalytic performance in Knoevenagel condensation and CO2 conversion, serving as an effective metal-free catalyst. This work provides a new strategy for fabricating metal-free heterogeneous catalysts based on macrocyclic POPs.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Leyong Zhou, Changyin Yang, Weitao Dou, Tongxia Jin, Haibo Yang, Lin Xu
Summary: This review summarizes the application of micro/nanofluidic techniques in constructing supramolecular assemblies of different scales, and highlights the advantages of these techniques over conventional synthesis methods. Furthermore, it emphasizes the potential of micro/nanofluidic systems in improving our understanding of supramolecular self-assembly processes.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Yanchao Jin, Suixiaochen Chen, Peiwen Huang, Xiongjian Chen, Chun-Yan Lin, Li-Ping Li, Xiao Chen, Rui Ding, Jianxi Liu, Riyao Chen
Summary: In this study, magnesium and coconut shell carbon were used to disinfect water by adsorbing copper(II) and converting dissolved oxygen to hydrogen peroxide through Mg corrosion. The copper was enriched on the carbon surface and efficiently catalyzed the hydrogen peroxide to inactivate E.coli. The process showed promising disinfection performance both in laboratory experiments and real wastewater treatment.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Haihong Lai, Zehong Chen, Hao Zhuo, Yijie Hu, Xuan Zhao, Jiwang Yi, Hongzhi Zheng, Ge Shi, Yifan Tong, Ling Meng, Xinwen Peng, Linxin Zhong
Summary: By altering the pyrolysis route of cellulose nanofiber, the structural defects of carbon aerogels can be reduced, leading to improved compressibility and stress retention, as well as higher stress sensor sensitivity and temperature coefficient.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Lina Guo, Jinsong Ding, Wenhu Zhou
Summary: Bacteria-based tumor therapy has resurfaced due to the revolution of tumor immunotherapy, offering unique solutions for traditional tumor treatments. Bacteria with active tropism can selectively colonize tumor sites and suppress tumor growth through various mechanisms, making them attractive tools for tumor treatment. This critical review introduces recent advances in bacteria-based tumor therapy, including bacterial properties, their benefits for tumor therapy, anti-tumor mechanisms, challenges, and future perspectives.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Lan Liang, Chuanbin Wang, Xukai Lu, Yunan Sun, Beibei Yan, Ning Li, Guanyi Chen, Li'an Hou
Summary: This study investigates the interactions between phenol and benzaldehyde in the ECH process through experiments and theoretical calculations. The results show that phenol can accelerate the conversion of benzaldehyde, while benzaldehyde inhibits the conversion of phenol. The research provides a theoretical basis for the application of ECH in practical bio-oil upgrading.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Pengcheng Fan, Yuhao He, Junan Pan, Ning Sun, Qiyu Zhang, Chen Gu, Kang Chen, Weinan Yin, Longlu Wang
Summary: This study focuses on the recent progress in hydrogen evolution reaction (HER) based on photothermal effect. It introduces the main pathways of photothermal conversions applied in H2 evolution, summarizes the functions of the photothermal effect, and presents a method to improve the catalytic system through thermal means. The study also discusses the challenges and outlook in this promising area.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Leiduo Lai, Hongyu Zhou, Yichen Hong, Mengfan Luo, Yang Shi, Heng Zhang, Zhaokun Xiong, Gang Yao, Bo Lai
Summary: In this study, a facile ammonia reduction strategy was proposed and a novel FeVO3-x catalyst was synthesized for the activation of peroxymonosulfate (PMS) to degrade the pharmaceutical carbamazepine (CBZ). The results showed that the system could rapidly degrade CBZ and generate various active species involved in the degradation process.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Tangxin Xiao, Xiuxiu Li, Liangliang Zhang, Kai Diao, Zheng-Yi Li, Xiao-Qiang Sun, Leyong Wang
Summary: This study presents the construction of a supramolecular light harvesting system based on sequential energy transfer. The system demonstrates tunable fluorescence emission through self-assembly of polymers into nanoparticles, achieving efficient two-step light harvesting.
CHINESE CHEMICAL LETTERS
(2024)