Article
Chemistry, Physical
Qingzheng Wang, Masafumi Unno, Hongzhi Liu
Summary: PCS-OTS is a novel fluorescent silsesquioxane-based polymer with high surface area and unique pore structure, which acts as a sensitive chemical sensor and dye adsorbent, suitable for water treatment.
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
Biochemistry & Molecular Biology
Biying Liu, Chaochao Mao, Zian Zhou, Qiannan Wang, Xiong Zhou, Zhijie Liao, Ran Deng, Defei Liu, Jingzi Beiyuan, Daofei Lv, Jiesen Li, Liyun Huang, Xin Chen, Wenbing Yuan
Summary: Two aniline-based hypercrosslinked polymers (AHCP-1 and AHCP-2) were synthesized for iodine capture in both aqueous and gaseous phases. AHCP-1 showed record-high static iodine adsorption in aqueous solution, while AHCP-2 exhibited excellent total iodine capture in iodine vapor adsorption. These polymers can be potential candidates for removing iodine from radioactive wastewater and gas mixtures.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Nanoscience & Nanotechnology
Sangmin Park, Hye-Min Lee, Young-Seak Lee, Sangmin An, Junghoon Yang, Jungpil Kim
Summary: The CO2 adsorption performance of nanoporous graphene is influenced by the pore size and the type of nitrogen-containing functional groups introduced. Introducing nitrogen groups into graphene with appropriate pore size enhances CO2 adsorption through additional hydrogen bonds and Lewis acid-base interactions. Different nitrogen groups exhibit varying adsorption performances, with decreasing performance as pore size increases. This study emphasizes the importance of introducing nitrogen groups into the inner edges of nanoporous graphene.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Applied
Mosim Ansari, Atikur Hassan, Akhtar Alam, Neeladri Das
Summary: Coal-fired and thermal power plants are major contributors to CO2 emissions, leading to global warming and ocean acidification. Solutions like carbon capture or nuclear energy are being explored. A new porous polymer, TBHCP-OH, shows promising potential for environmental remediation by efficiently capturing CO2 and iodine vapor.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Engineering, Chemical
Xingbo Wang, Deng Hu, Yingdong Hao, Lina Zhang, Nannan Sun, Wei Wei
Summary: Massive CO2 emission contributes greatly to global warming, and carbon capture, utilization and storage (CCUS) has been proposed as an essential option for carbon reduction. The integrated carbon capture and conversion (ICCC) approach, using efficient dual-functional materials (DFMs), has shown potential for reducing CCUS costs. In this study, Ni-MgO-Al2O3 DFMs were prepared by calcination of Ni-impregnated Mg-Al layered double hydroxide (MgAl-LDH), and achieved excellent ICCC performance with high selectivity for converting captured CO2 to CH4. This work provides a pathway for practical implementation of ICCC technology and inspires other integration approaches for CO2 capture and mitigation technologies.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Guang-Hui Yu, Chun-Lei Yang, Hong-Lei Zhao, Ai-Xuan Yu, Gen Zhang, Dong-Ying Du, Zhong-Min Su
Summary: In this study, a nitrogen-rich metal-organic framework material NENU-1000 was successfully synthesized using a mixed-ligand strategy. NENU-1000 exhibits selective absorption of cationic dyes and can be used for detection of small alcohol molecules such as methanol. The effect of alcohol structure on the color development rate was investigated.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Yu Ye, Bangdi Ge, Xianyu Meng, Yuchuan Liu, Shun Wang, Xiaowei Song, Zhiqiang Liang
Summary: Y-TCPP is a 3D hybrid microporous framework with outstanding chemical stability, permanent porosity, excellent fluorescence properties and catalytic performance for CO2 conversion. It has potential applications in toxic chemical detection and CO2 cycloaddition.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Physical
Ali K. Sekizkardes, Victor A. Kusuma, Jeffrey T. Culp, Patrick Muldoon, James Hoffman, Janice A. Steckel, David Hopkinson
Summary: Polymers of intrinsic microporosity (PIM) fibers with amidoxime and amine functionalities were developed as high-performance CO2 adsorbents. The single porous polymer component functionalized with molecular amines showed the highest CO2 uptake capacity (3.3 wt% (0.8 mmol g(-1)) CO2 at 400 ppm) among existing PIM-based and single polymeric sorbents. The sorbents demonstrated rapid CO2 adsorption rates (90% capture within 7 min) and cost-efficient and reproducible regeneration (at 70 degrees C), which is crucial for reducing the cost of direct air capture.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Atikur Hassan, Neeladri Das
Summary: The uses of nuclear reactions are becoming increasingly important in energy and medical therapy applications. Proper treatment and storage of nuclear waste are crucial for considering nuclear energy for various purposes.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Valeria B. Lopez-Cervantes, Dae Won Kim, Juan L. Obeso, Eva Martinez-Ahumada, Yoarhy A. Amador-Sanchez, Eli Sanchez-Gonzalez, Carolina Leyva, Chang Seop Hong, Ilich A. Ibarra, Diego Solis-Ibarra
Summary: The MOF-type Ni-2(dobpdc) exhibits high chemical stability towards SO2, high capacity for low-pressure SO2 capture, and exceptional cycling performance. Fluorescence experiments demonstrate the remarkable SO2 detection selectivity of Ni-2(dobpdc). Time-resolved photoluminescence experiments provide a plausible mechanism of SO2 detection by this Ni(ii)-based MOF material.
Article
Engineering, Environmental
Khursheed B. Ansari, Vilas G. Gaikar, Quang Thang Trinh, Mohd Shariq Khan, Arghya Banerjee, Dipika Rajendra Kanchan, Mohammed K. Al Mesfer, Mohd Danish
Summary: This study demonstrates the adsorptive capture of carbon dioxide on amine-functionalized polymer adsorbent, showing potential for CO2 capture in the cement industry. The experimental results reveal variations in CO2 adsorption capacity and heat of adsorption at different temperatures. Continuous adsorption/desorption studies validate the effectiveness of the method in gas mixtures.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Inorganic & Nuclear
Zhen-Hua Guo, Yin-Di Zhang, Qian-Qian Wang, Yao Wang, Peng-Feng Zhang, Wen-Yan Zhang, Guo-Ping Yang, Yao-Yu Wang
Summary: The development of porous absorbents for efficient CO2 and I-2 capture has attracted significant attention due to global climate change and environmental issues. A unique porous metal-organic framework (MOF) with exceptional properties for I-2 sorption, CO2 capture, and catalytic conversion has been constructed. This promising material shows high efficiency in removing I-2 and capturing CO2, making it a potential candidate for environmental purification.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Jun Yan, Sihan Tong, Haiyu Sun, Shengwei Guo
Summary: Constructing nitrogen-rich nanoporous organic polymers for toxic gas and radioactive iodine adsorption through a facile one-pot method remains challenging. In this study, two nanoporous semi-cycloaliphatic polyaminal networks (sPANs) were synthesized using cycloaliphatic piperazine with different building blocks, and they showed high efficiency for the capture of SO2, NH3, and I-2. The results provide important insights for the development of materials for gas and radioactive element capture.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Robert Stanton, Dhara J. Trivedi
Summary: Nanoporous materials like MOFs and COFs are important candidates for environmental remediation. Functionalized versions of these materials have shown improved performance in CO2 capture. This study uses computational methods to investigate the impact of amino acid functionalization on CO2 uptake metrics in three nanoporous materials.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Polymer Science
Yiqi Wang, Mikhail Soldatov, Qingzheng Wang, Hongzhi Liu
Summary: Porous polymers functionalized with phosphazene have been prepared by varying the molar ratio of hexaphenoxycyclotriphosphazene with octavinylsilsesquioxane. The resulting PCS-OP-3 exhibited higher adsorption capacity for iodine vapor, dyes, and CO2 compared to PCS-CP-3. This study demonstrates a feasible method to prepare and tune phosphazene functionalized silsesquioxane-based porous polymers.
Article
Chemistry, Physical
Qingzheng Wang, Masafumi Unno, Hongzhi Liu
Summary: PCS-OTS is a novel fluorescent silsesquioxane-based polymer with high surface area and unique pore structure, which acts as a sensitive chemical sensor and dye adsorbent, suitable for water treatment.
Article
Chemistry, Multidisciplinary
Qingzheng Wang, Masafumi Unno, Hongzhi Liu
Summary: In this study, a novel organic semiconductor molecule CZ-DCM was successfully prepared and a hybrid network PCS-CZ-DCM was synthesized. PCS-CZ-DCM exhibited a regulatable near-IR-luminescence sensitivity to berberine chloride hydrate and excellent photodegradation activity for antibiotics.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Nanoscience & Nanotechnology
Xiaohan Zhao, Qingzheng Wang, Rungthip Kunthom, Hongzhi Liu
Summary: In this study, a novel and excellent Brønsted acid-derived silsesquioxane solid catalyst PCS-DDSQ-SO3H-x was successfully prepared through an electrophilic aromatic substitution reaction. The catalyst exhibited outstanding catalytic performance for the methanolysis of styrene oxide, achieving high conversion rate and selectivity.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Qingzheng Wang, Masafumi Unno, Hongzhi Liu
Summary: A novel near-infrared emitting hybrid aerogel (PCS-CA) is prepared by physically blending a porous material with chitosan, which can detect tetracycline hydrochloride selectively and rapidly with a low detection limit. It also exhibits outstanding sunlight-driven photodegradation activity for antibiotics. By blending with a soft polymer matrix, improved processability can be achieved for insoluble porous materials, providing a new way to apply them.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Polymer Science
Yuanzhang Jiang, Xuyi Wang, Yanting Han, Dakai Gong, Yingchun Gu, Lin Tan
Summary: In this study, FeCl3 and poly(acrylic acid) (PAA) were doped into waterborne polyurethanes (WPUs) to create multifunctional materials with self-healing and antimicrobial properties. WPU/Fe/PAA-5.5, containing 5.5 wt % PAA, exhibited excellent mechanical properties, strong self-healing capabilities, and an impressive antimicrobial rate of over 90%. These supramolecular films were also highly recyclable through hot-pressing.
Article
Polymer Science
Longyu Tian, Min Wang, Guangming Liao, Baoliang Liu, Sujuan Zhang, Yucheng Sun, Zhen Meng, Jintao Zhang, Zaijun Lu
Summary: Two kinds of benzoxazine monomers were synthesized and used to prepare polybenzoxazine anion exchange membranes (AEMs) with quaternary ammonium functionalization. The LQPBZ AEM exhibited better ion conductivity and alkaline stability.
Article
Polymer Science
Claire A. Lemarchand
Summary: This study investigates the shock behavior of three different polymers through molecular dynamics simulations. The results reveal specificities in the shock behavior of polymers, including deviations from the linear relation between shock velocity and particle velocity, as well as differences in shear stress relaxation behind the shock front. It is found that the deviation of the Hugoniot locus is related to the change in the relative contribution of bonding and non-bonding potential energies, while polymers with higher glass transition temperatures exhibit slower shear stress relaxation.
Article
Polymer Science
Zengquan Liu, Xiaochun Yin, He Zhang, Shuo Gao, Qinglin Kuang, Yanhong Feng
Summary: A powder solid-state extension (PSSE) technology was proposed to address the high melt viscosity issue of UHMWPE. By uniaxial extension and sintering in the solid state, a highly self-reinforced material was prepared. X-ray diffraction and scattering techniques were used to study the structural evolution during the PSSE process, and a solid-phase induced transformation model was established.
Article
Polymer Science
Zhike Li, Anyu Luo, Rui Zhou, Xin Li, Haiyan Li
Summary: A novel high temperature resistance IL@SiO2 nanocapsules were successfully prepared and their friction and wear properties in PA6 composites were studied. The addition of IL@SiO2 nanocapsules reduced the friction coefficient and wear rate without affecting the mechanical properties of PA6. The synergy between the IL core and SiO2 wall in the nanocapsules improved the self-lubricating performance of the PA6 composites.
Article
Polymer Science
Xin Liu, Xuhong Guo, Qi Liao
Summary: In this study, an algorithm for accurately estimating viscosity is developed using molecular dynamics simulations and the Green-Kubo formula. This algorithm can be applied to complex systems with long correlations, such as macromolecular and biological simulation systems.
Article
Polymer Science
Hao Pu, Yun-Lei Hou, Jing -Zhou Chen, Dong -Lin Zhao
Summary: The use of modified graphene improves the interfacial adherence of carbon fibers to epoxy resin, resulting in enhanced interfacial and bending properties of CF and matrix in CF/EP composites, as well as increased interlaminar shear strength and flexural strength.
Article
Polymer Science
Wei-Chung Ke, Jin-Wei Lin, Manohar Reddy Busireddy, Yueh-Hsing Lee, Jiun-Tai Chen, Chain-Shu Hsu
Summary: This study introduces a crosslinkable monomer, TAIC, to synthesize three crosslinked polyimide films, which exhibit improved thermal, mechanical, and dielectric properties. The introduction of TAIC enhances the tensile strength, reduces the dielectric constant and dielectric loss, and decreases the coefficient of thermal expansion of the polyimide films.
Article
Polymer Science
Alex Kwasi Kumi, Ruiling Fan, Ye Chen, Yumei Zhang
Summary: The difference in leaching of amylopectin from cellulose/amylopectin/1-butyl-3-methylimidazolium chloride ([Bmim][Cl]) blends during regeneration in water and aqueous ethanol has been studied. Molecular dynamics simulations showed that the dissolution and regeneration mechanisms of amylopectin in [Bmim][Cl] are similar to cellulose in ionic liquids. Water regeneration leads to weak electrostatic interactions, resulting in high leaching of amylopectin. In contrast, ethanol-water interactions enhance electrostatic interactions among amylopectin chains, limiting amylopectin leaching in aqueous ethanol.
Article
Polymer Science
Xi Zeng, Junwei Zhou, Junbiao Peng, Chunsheng Zhang, Danling Wang, Yihu Song, Qiang Zheng
Summary: This study utilizes an oligomer deep eutectic solvent (DES) based on polyethylene glycol to regulate the vulcanization kinetics of rubber. The results show that the DES can accelerate vulcanization at low temperatures without affecting the crosslinking density and Mullins effect.
Article
Polymer Science
Qianqian Yue, Yongfei Peng, Xingjian Liu, Aihua He, Huarong Nie
Summary: The addition of metal deactivators can effectively suppress the aging of TBIR, prolong its lifespan, and have no negative effects on its physical and processing properties. These research findings are of great importance for improving the stability and aging resistance of polymers.
Article
Polymer Science
J. Gomez-Caturla, J. Ivorra-Martinez, R. Tejada-Oliveros, V Moreno, D. Garcia-Garcia, R. Balart
Summary: This work focuses on the development of environmentally friendly PLA formulations by using different esters derived from geraniol as plasticizers. The results show that these esters have good compatibility with PLA, and they can effectively enhance the elongation and plasticity of PLA, reduce its glass transition temperature, and slightly improve its water absorption capabilities.
Article
Polymer Science
Dandan Li, Zhaohui Lu, Zhao Ke, Ke Xu, Fengna Dai, Youhai Yu, Guangtao Qian, Chunhai Chen
Summary: In this study, cross-linked PI aerogel membranes with low dielectric constant and high moisture resistance were prepared by co-polymerization and scraping coating technology. The incorporation of fluorinated blocks and benzimidazole ring structures resulted in novel PI aerogel membranes with fascinating dielectric properties and outstanding moisture resistance.
Article
Polymer Science
Zhaoyang Chu, Qing Zhang, Haihua Luo, Han Zhou, Fapei Zhang, Wei Chen, Wenhua Zhang
Summary: Multi-physical fields solution processing strategy is a universal and facile method for preparing various conjugated polymer films and high-performance devices. In this study, we employed a combined microfluidic flow and ultrasonication strategy (FU) for processing CP solutions, and found a pronounced synergetic effect in promoting the pre-ordering of chains in solution. The conformation order and anisotropy of the solution were revealed through various characterizations. A non-classical nucleation model for polymer crystallization in non-equilibrium solution processing was confirmed. The roles of microfluidic flow and ultrasonication in chain aggregation and crystallization were addressed through multi-physical simulations. Compared to pristine solutions, the FU strategy showed improved solution anisotropy and crystallization kinetics, resulting in higher crystallinity in films and increased mobilities in OFET devices. The FU processing strategy provides a universal approach for regulating chain conformation and aggregation in conjugated polymer solutions.