Article
Engineering, Environmental
Xin Gao, Qing-Hua Hu, Yu-Zhen Shi, Ru-Ping Liang, Jian-Ding Qiu
Summary: Here, we report a new adsorbent named Zn-Vlm6 with highly selective and high adsorption capacity for removing I3- from water. Zn-Vlm6 showed excellent thermal and chemical stability and achieved a high adsorption capacity of 1680.7 mg g-1 for I3-. It can selectively capture I3- in the presence of competing anions and remove up to 96.4% of I3- from different environments. Moreover, Zn-Vlm6 can also adsorb gaseous iodine up to 2470 mg g-1.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Nicholas J. Corrente, Elizabeth L. Hinks, Aastha Kasera, Raleigh Gough, Peter I. Ravikovitch, Alexander V. Neimark
Summary: This study explores the capabilities of 3D molecular models of disordered carbon structures to reproduce the morphological and adsorption features of practical adsorbents. By using grand canonical Monte Carlo simulations, the researchers were able to construct adsorption isotherms and demonstrated outstanding agreement between the simulated and experimental results. The correlations with experiments are truly amazing, considering the inherent variability of structural properties of commercial carbons and the diverse sources of experimental data in the literature.
Article
Biochemistry & Molecular Biology
Wei-Te Lee, Tsung-Te Liao, Jhy-Der Chen
Summary: A series of coordination polymers with different topologies were obtained by reactions between Ni(II) salts, various oxalamide ligands, and angular dicarboxylic acids under hydro(solvo)thermal conditions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Jerzy Choma, Jacek Jagiello, Mietek Jaroniec
Summary: Adsorption isotherms in micropores and mesopores are evaluated using nitrogen adsorption isotherm on micro-mesoporous carbons to determine pore size distributions. Selection of appropriate templates and activation methods can lead to carbons with ordered mesopores and increased microporosity.
Article
Chemistry, Multidisciplinary
Zhi-Hao Zhang, Jia-Lu Ge, Yan Li, Qing Li, Pin-Pin Ma, Xiao-Yan Tang, Wen-Hua Zhang, David J. Young
Summary: Developing porous materials for efficient capture of I-2 is important for the sequestration and storage of radioactive iodine towards clean nuclear energy. In this study, three structurally identical two-dimensional (2D) metal-organic frameworks (MOFs) were prepared, and one of the MOFs showed the highest adsorption capacity for I-2.
Article
Chemistry, Inorganic & Nuclear
Mozhgan Parsaei, Kamran Akhbari, Jonathan White
Summary: A novel Zn(II)-based metal-organic framework, MUT-4, has been successfully synthesized and its CO2 adsorption performance can be optimized by adjusting the synthetic methods.
INORGANIC CHEMISTRY
(2022)
Article
Engineering, Environmental
Xinyu Zhou, Huiran Jin, Shan Yun, Wanxia Huang, Pin Mao, Jing Chen, Yi Yang
Summary: In this study, a novel Cu nanoporous aerogel (Cu-NPA) was successfully prepared and characterized. The results showed that Cu-NPA exhibits high adsorption capacity and stability, making it a promising material for the removal of radioactive I2.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Weipeng He, Jiacheng Luo, Yujie Wu, Tianhao Luo, Chen Tang
Summary: This study comparatively evaluated the role of cationic, anionic, and nonionic polyacrylamides (PAMs) in ballasted flocculation of clay suspensions under different aluminum sulfate (AS) coagulant dosages. The selection of PAMs and AS dosage had a significant influence on the size and shear resistance of ballasted floc aggregates.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Chemistry, Inorganic & Nuclear
Junyan Zou, Dan Wen, Yu Zhao
Summary: This study successfully synthesized two functionalized three-dimensional covalent organic frameworks (COFs), namely CPOF-2 and CPOF-3, which were functionalized with acetylene (-C(sic)C-) and diacetylene (-C(sic)C-C(sic)C-), respectively. These COFs exhibit high crystallinity, permanent porosity, and chemical stability. Particularly, CPOF-3 demonstrates an extremely high iodine adsorption capacity, up to 5.87 g g(-1), which is much higher than most reported COF-based iodine adsorbents. Therefore, this study provides a new design principle for high-performance iodine adsorption porous materials to address the environmental pollution caused by radioactive iodine in the waste of the nuclear industry.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Miaomiao Tian, Jun Zheng, Jintang Xue, Xuze Pan, Dandan Zhou, Qingxia Yao, Yunwu Li, Wenzeng Duan, Jie Su, Xianqiang Huang
Summary: A series of microporous Ln(III)-based metal-organic frameworks have been synthesized and shown to have remarkable stability and permanent porosity for Ar and CO2 adsorption, as well as excellent catalytic activities in Knoevenagel reactions. Among them, 1-Tb exhibits the best catalytic performance and provides a unique example to differentiate the roles of Ln ions within the frameworks.
DALTON TRANSACTIONS
(2021)
Article
Nanoscience & Nanotechnology
Belkacem Tarek Benkhaled, Arnaud Chaix, Chaimaa Gomri, Sebastien Buys, Nabil Namar, Nadine Sehoulia, Rohitkumar Jadhav, Jason Richard, Laure Lichon, Christophe Nguyen, Magali Gary-Bobo, Mona Semsarilar
Summary: Here, a biocompatible cross-linked trianglamine network was reported for efficient iodine removal from vapor, water, and seawater. The network exhibited high iodine adsorption capacity in the vapor phase and fast kinetics in the liquid phase. The materials are environmentally friendly and inexpensive, making them a potential choice for emergencies in the nuclear industry.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Energy & Fuels
Komalkant Adlak, Ram Chandra, Virendra Kumar Vijay, Kamal Kishore Pant
Summary: This article investigates the important role of pore structure in activated carbons for adsorbed natural gas technology. By activating biomass/biochar with KOH, hierarchical porous networks are generated, and different types of biomass yield different porosity. Ten different biomasses, including waste materials, were selected for activated carbon production and analyzed using various techniques. The results showed that coconut and pistachio shell activated carbons had suitable pore structures for methane adsorption, while other softer biomasses had wider pore distributions. The properties impacting the adsorption for ANG technology were also discussed.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Dong-Dong Zhou, Jun Wang, Pin Chen, Yangyong He, Jun-Xi Wu, Sen Gao, Zhihao Zhong, Yunfei Du, Dingyong Zhong, Jie-Peng Zhang
Summary: By transforming hydrogen-bonded networks on metal surfaces into coordination networks, the pore size and guest recognition behaviors can be easily tuned. This transformation expands the pore diameter and results in different host-guest recognition behaviors based on size compatibility mechanisms.
Review
Polymer Science
Gabrijela Horvat, Milica Pantic, Zeljko Knez, Zoran Novak
Summary: This review discusses the commonly employed methods for determining pore size and pore size distribution in bioaerogels. It highlights the challenges in accurately determining pore sizes in these materials and emphasizes the importance of precise pore size measurements for their final applications. The study covers various methods and concludes that there is currently no precise method for determining pore size in aerogels, suggesting a need for future developments in this field.
Article
Chemistry, Physical
Jaeyeon Kim, Obeen Kwon, Hongnyoung Yoo, Heesoo Choi, Hyeonjin Cha, Hyeok Kim, Seokhun Jeong, Myunggyu Shin, Dasom Im, Youngjin Jeong, Taehyun Park
Summary: This study investigates the application of carbon nanotube-based nanoporous layers in polymer electrolyte membrane fuel cells. The use of CNT-15 as an additional nanoporous layer with carbon-black microporous layer in dry operation leads to the best performance enhancement, primarily due to improved water management and reaction kinetics.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Multidisciplinary
Abu Talha Aqueel Ahmed, Sankar Sekar, Shubhangi S. Khadtare, Nurul Taufiqu Rochman, Bathula Chinna, Abu Saad Ansari
Summary: In this study, MnCo2S4 nanosheet catalyst was successfully synthesized and found to exhibit superior performance in hydrogen evolution. Compared to MnCo2S4, MnCo2S4 showed low overpotentials, moderate Tafel slope, and excellent sustainability. The outstanding performance can be attributed to the increased number of electrochemically active sites and enhanced electronic conductivity on the catalyst surface.
Article
Chemistry, Multidisciplinary
Victor V. Maltsev, Elena A. Volkova, Elizaveta V. Koporulina, Diana D. Mitina, Vladimir L. Kosorukov, Anna I. Jiliaeva, Daniil A. Naprasnikov, Konstantin N. Gorbachenya, Viktor E. Kisel
Summary: The phase relationships, crystal properties and luminescence kinetics of two complex systems were studied, including unit cell parameters, segregation coefficients of impurities, and lifetimes of energy levels.
Article
Chemistry, Multidisciplinary
Xiaoman Zhang, Wangwang Xu, W. J. Meng, Andrew C. Meng
Summary: This study successfully grew high-quality single crystal AlScN nanowires through ultra-high vacuum reactive sputtering technique and characterized their structure and properties. The nanowires exhibit significantly reduced mosaic spread and predominantly single ferroelectric domains, as well as a high piezoelectric constant.
Article
Chemistry, Multidisciplinary
Tom E. de Vries, Elias Vlieg, Rene de Gelder
Summary: Networks are important for describing relationships between people, roads between cities, reactions between chemicals, and other interactions. Bipartiteness, dividing the network into two groups, can facilitate the study of the network's structure. We have developed an algorithm that can find a near-optimal bipartisation within a reasonable time frame and used it to uncover the hidden structure of the CSD cocrystal network.
Article
Chemistry, Multidisciplinary
Chuchu Han, Jing Yang, Xin Zhang, Aisen Li, Jiang Peng
Summary: An elastic crystal based on a photo-reactive acylhydrazone derivative is reported, which exhibits reversible bending behavior under UV irradiation and heating. The crystal undergoes reversible E<->Z isomerization under light and heating conditions. The crystal demonstrates excellent elastic properties and the bending can be controlled to control the output direction of red light.
Article
Chemistry, Multidisciplinary
Lingfeng Zhang, Yu Wang, Yefeng Wang, Shuai Liu, Na Zhang, Mingmin Yang, Haixia Ma, Zhaoqi Guo
Summary: This study designs and synthesizes a series of high-energy salts compounds without heavy metal ions and azide groups. The molecular structures and stability of the compounds are confirmed through single-crystal X-ray diffraction and intermolecular interaction analysis. Furthermore, the thermal stability, energetic properties, and electrical initiation properties of the compounds are investigated, suggesting their potential as primary explosives.