Article
Engineering, Chemical
Yun Qu, Lei Qin, Xuguang Liu, Yongzhen Yang
Summary: Metal organic frameworks (MOFs) are promising adsorbents for removing organic pollutants from water. However, their separation and recycling are difficult due to their microcrystalline powder form. This study focuses on the facile fabrication of regenerable magnetic adsorbents with high efficiency and excellent recoverability. A composite of Fe3O4/ZIF-8 was successfully prepared for phenol removal, showing outstanding adsorption capacity and fast adsorption rate. The adsorption mechanism involves hydrogen bonding, pi-pi interaction, pore adsorption, and electrostatic attraction. The magnetic adsorbent also exhibits excellent reusability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Applied
Yun Qu, Lei Qin, Xuguang Liu
Summary: In this study, a carbonized ZIF-8/chitosan imprinted hybrid carbon aerogel (MIP@CZIF-8/CS) was constructed, which exhibited remarkable phenol adsorption capacity and selectivity. The adsorption kinetics and isotherms followed specific models, and the material showed good mechanical stability, reusability, and the ability for dynamic filtration of phenol.
CARBOHYDRATE POLYMERS
(2023)
Article
Biochemistry & Molecular Biology
Saber Babaee Zadvarzi, Maryam Khavarpour, Seyed Mohammad Vahdat, Seyed Meysam Baghbanian, Ali Shokuhi Rad
Summary: Effective removal of dyes from industrial wastewater is a global concern, with magnetic chitosan coated with ZIF-8 showing promising results for eliminating cationic dye malachite green. Fe3O4@chitosan@ZIF-8 was found to be a highly efficient adsorbent for removal of toxic malachite green dye from aqueous solution.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Chemistry, Physical
Shaopeng Zhang, Jie Ding, Dayong Tian, Ruiqin Kang, Xunyang Zhao, Mingshuo Chang, Wenbo Yang, Haijiao Xie, Minghua Lu
Summary: This paper reports the synthesis of a nanocomposite consisting of N+(CH3)3-modified ZIF-8/chitosan adsorbents, which exhibit high adsorption performance for As(V). The structural characteristics of ZIF-8/CS-N were analyzed in detail, and it was found that ZIF-8/CS-N follows pseudo-second-order kinetics and Langmuir isotherms for As(V) adsorption. The adsorption capacity of ZIF-8/CS-N for As(V) reaches 54.2 mg/g and achieves equilibrium within 60 minutes. The adsorption mechanism involves electrostatic interaction and surface complexation, where the surface hydroxyls of Zn sites and nitrogen-containing groups (-C=N and -N+(CH3)3) capture As(V). This work provides potential for the design of adsorbents with high adsorption performance for As(V) in practical industrial applications.
APPLIED SURFACE SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Rongrong Si, Honggang Luo, Tao Zhang, Junwen Pu
Summary: In this study, ultralight yet highly adsorptive cellulose nanofiber/chitosan-based aerogels were efficiently prepared using a high-crystallinity metal framework material (ZIF-8) and a freeze-drying approach. The aerogels exhibited a hydrophobic surface and had low density, high porosity, and excellent adsorption and cyclic stability towards organic solvents. Additionally, the aerogels showed great oil removal and separation performance in various oil/water mixtures, making them promising for oily water pollution treatment.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Green & Sustainable Science & Technology
Rong Zhu, Shurui Cao, Jie Tian, Mengni Luo, Jiade You, Zhiqiong Chen
Summary: Deep eutectic solvents (DESs) are innovative adsorbent modifiers and pore expanders with numerous possible combinations for tailor-made designs. A predictive virtual library of 20 candidates was designed using density functional theory (DFT) to guide the screening of DESs for mephedrone adsorption. Three types of DES-functionalized magnetic ZIF-8/shrimp shell biochar (DMZSCs) were successfully synthesized and confirmed through batch adsorption experiments and selectivity evaluation experiments. DMZSC-B exhibited a high adsorption capacity, stability at various pH levels, and selectivity for mephedrone in the presence of other chemicals. The adsorption mechanisms were determined to be governed by pore-filling, hydrogen bonding, and p-p interaction, with p-p interaction being the dominant driving force.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Saber Babaee Zadvarzi, Ali Akbar Amooey
Summary: In recent years, the use of medicine worldwide has been increasing due to population growth and the spread of disease. Antibiotics account for about 10 to 15% of drug consumption and studies have shown that antibiotics, when not completely removed, have a permanent and destructive effect on the environment. In this study, a chitosan@polyacrylamide@ZIF-8 adsorbent was used to simultaneously remove cefixime and amoxicillin from aqueous solutions using adsorption methods. Various analytical techniques were used to investigate the properties and morphology of the adsorbent, and numerical calculations were performed to determine the optimal parameters for adsorption. The results show that the chitosan@polyacrylamide@ZIF-8 adsorbent is an effective and economical option for removing amoxicillin and cefixime from polluted water.
ENVIRONMENTAL SCIENCES EUROPE
(2023)
Article
Engineering, Chemical
Li Jun Fang, Jian Hua Chen, Qian Yang, Wei Wei Lin, Qiao Jing Lin, Ya San He, Yi Zhi Zhuo
Summary: In this study, a gradient pervaporation (PV) membrane (S-ZIF-8/PEBA/ZIF-8) was constructed for phenol enrichment and separation. The membrane exhibited outstanding adsorption selectivity and diffusion selectivity for phenol molecules, and demonstrated excellent separation performance and long-term stability. This membrane holds great potential for phenol recovery from wastewater.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Biochemistry & Molecular Biology
Xiaoyan Zhu, Jiaqi Tong, Lihui Zhu, Daodong Pan
Summary: This study proposed a method for in situ growth of ZIF-8 on BCMC to produce a composite adsorbent for Pb2+ removal from water. Results showed that BCMC enhanced the stability of ZIF-8 and improved the removal efficiency of Pb2+. The maximum adsorption capacity of BCMC@ZIF-8 was 566.09 mg/g according to the Langmuir model fitting.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Engineering, Environmental
Maryam Daraee, Raheleh Saeedirad, Ebrahim Ghasemy, Alimorad Rashidi
Summary: In this study, NCNT/ZIF-8 nanocomposite was prepared via the hydrothermal method for providing clean fuels through desulfurization. The nanocomposite showed excellent adsorption capacity for DBT, attributed to the synergistic effects of NCNT and ZIF-8, the presence of basic groups in NCNT structure, and high surface area and pore volume. The regenerated NCNT/ZIF-8 maintained good performance even after 3 adsorption-desorption cycles with almost unchanged adsorption capacity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Chemical
Jiapeng Li, Qiushi Jiang, Lianzhi Sun, Jingjing Zhang, Zhaolian Han, Shuang Xu, Zhiqiang Cheng
Summary: A bifunctional composite microsphere adsorbent with high adsorption and antimicrobial activity was synthesized for the removal of heavy metal ions Pb2+ and Cu2+. The composite microsphere exhibited good crystallinity, high specific surface area, multi-pore size distribution, better thermal stability, and more active groups. The adsorption process followed Langmuir model and Pseudo 2nd kinetics model. Moreover, the composite microsphere showed excellent antibacterial properties and maintained high adsorption rates after multiple cycles.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Xinlong Yan, Yanfang Li, Xiaoyan Hu, Rui Feng, Min Zhou, Dezhi Han
Summary: ZIF-8-decorated activated carbon pellets were synthesized using a ladle wet impregnation technique, resulting in carbon with large surface area and pore volume, with traces of Zn on its surface. The ZIF8/AC samples showed high adsorption capacity for phenol removal from aqueous media, with potential for repeated use.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Xuefeng Zhang, Jiayu Ouyang, Xinmiao Qi, Ze Li, Qiang Ma, Xin Guo, Shanshan Jia
Summary: A photocatalytic adsorbent, CCCZ, was synthesized for effective removal of hexavalent chromium contamination. CCCZ exhibited exceptional adsorption capacity for Cr(VI), surpassing that of original chitosan gel bead by a factor of 3.4. Additionally, CCCZ showed efficient regeneration capacity and long-term stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Trung Tuyen Bui, Duc Cuong Nguyen, Si Hiep Hua, Hyungphil Chun, Yong Shin Kim
Summary: This study presents a novel method for synthesizing magnetic core-shell nanocomposites for environmental applications. The method involves encapsulating magnetic Fe3O4 nanoparticles with microporous zeolitic imidazolate framework-8 (ZIF-8) nanocrystals through ultrasonic activation. The synthesized Fe3O4@ZIF-8 nanoparticles exhibit a core-shell structure and have high content of ZIF-8, combined with micro/mesoporosity. The functional nanomaterial can be used as adsorbents that are easily separated using a magnet, and show excellent adsorption performance for the removal of copper ions from water.
Article
Materials Science, Multidisciplinary
Wei Chen, Fucheng Yun, Shenyi Zheng, Chen Shi, Jian Han
Summary: A new composite fiber adsorbent, ZIF-8@CS/HAP, was prepared for efficient removal of lead ions from water through a simple two-step method. The adsorbent showed excellent adsorption performance under specific conditions and was unaffected by coexisting ions. The adsorption mechanism involved complexation, coprecipitation, ion exchange, and electrostatic adsorption.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Environmental Sciences
Mina Keshvardoostchokami, Parastoo Bigverdi, Abbasali Zamani, Abdolhosein Parizanganeh, Farideh Piri
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2018)
Article
Biochemistry & Molecular Biology
Mina Keshvardoostchokami, Shahin Babaei, Farideh Piri, Abbasali Zamani
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2017)
Article
Nanoscience & Nanotechnology
Mina Keshvardoostchokami, Farideh Piri, Abbasali Zamani
MICRO & NANO LETTERS
(2017)
Article
Environmental Sciences
Mina Keshvardoostchokami, Soraya Rasooli, Abbasali Zamani, Abdolhosein Parizanganeh, Farideh Piri
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2019)
Article
Chemistry, Multidisciplinary
Chao Fan, Fazhe Sun, Xiaomei Wang, Zuzhen Huang, Mina Keshvardoostchokami, Parveen Kumar, Bo Liu
Article
Materials Science, Multidisciplinary
Mina Keshvardoostchokami, Farideh Piri, Vahab Jafarian, Abbasali Zamani
Review
Chemistry, Multidisciplinary
Mina Keshvardoostchokami, Sara Seidelin Majidi, Peipei Huo, Rajan Ramachandran, Menglin Chen, Bo Liu
Summary: Research on various types of polymer nanofibers as artificial extracellular matrices has shown controllable physiochemical properties, enabling the engineering of microenvironments to support cell function through functionalization. The nanofibrous scaffolds were categorized into five main groups, and their role in supporting cellular function was discussed.
Review
Chemistry, Applied
Mina Keshvardoostchokami, Mahyar Majidi, Abbasali Zamani, Bo Liu
Summary: This review paper discusses the use of chitosan and its derivatives as adsorbents for removing nitrogen-containing pollutants from water, highlighting the impact of modification on adsorbent properties.
CARBOHYDRATE POLYMERS
(2021)
Review
Forestry
Mina Keshvardoostchokami, Flavia Lega Braghiroli, Carmen Mihaela Neculita, Ahmed Koubaa
Summary: Wood-based adsorbents are increasingly used for environmental applications due to their renewable feedstock, simple preparation processes, and advantageous structural and surface properties. This review summarizes recent advances in the preparation and use of modified wood-based residues as adsorbents for water, air, and soil remediation.
CURRENT FORESTRY REPORTS
(2023)
Article
Environmental Sciences
M. Keshvardoostchokami, L. Babaei, A. A. Zamani, A. H. Parizanganeh, F. Piri
GLOBAL JOURNAL OF ENVIRONMENTAL SCIENCE AND MANAGEMENT-GJESM
(2017)
Article
Chemistry, Physical
Rajalaxmi Sahoo, C. Reshma, D. S. Shankar Rao, C. V. Yelamaggad, S. Krishna Prasad
Summary: This study investigates the influence of the flexible spacer parity of a guest photoactive liquid crystalline dimer on the photonic bandgap features of the cholesteric and twist grain boundary smectic C phases of the host molecule. The results show that the parity of the photoactive dimer affects the width of the photonic bandgap and the blue-shift of the cholesteric phase. Additionally, the parity of the dimer also affects the layer spacing and two-dimensional periodicity of the liquid crystalline phases.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Sara Rozas, Alberto Gutierrez, Mert Atilhan, Alfredo Bol, Santiago Aparicio
Summary: This study presents a multiscale theoretical investigation on the use of bifunctional hydrophobic Deep Eutectic Solvent for carbon capture using tetrapropylammonium chloride, acetic acid, and ethanolamine. The characterization includes nanoscale analysis of CO2 absorption mechanisms and changes in liquid phase properties during gas capture.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Tabouli Eric Da-yang, Alhadji Malloum, Jean Jules Fifen, Mama Nsangou, Jeanet Conradie
Summary: In this study, the potential energy of different glycine tautomers and their interaction with Cu2+ cations was investigated. The results showed that the solvation medium and the presence of Cu2+ cations influenced the stability of glycine tautomers.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Xiaoliang Gou, Nan Ye, Qingqing Han, Junjie Cui, Long Yi Jin
Summary: In this study, amphiphilic rod-coil molecules with rigid DSA parts and flexible oligoether chains were designed and their assembly capacities were investigated. The morphology of the molecular aggregates was influenced by the pH of the solution and UV light, and the aggregates showed adsorption capacity for nitroaromatic compounds.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Shuang Liu, Liyan Shan, Cong Qi, Wenhui Zhang, Guannan Li, Bei Wang, Wei Wei
Summary: Optimizing the design of styrene-butadiene-styrene copolymer (SBS) is crucial for producing cost-effective SBS modifiers and improving road quality. This study examined the influence of SBS content and molecular structure on viscosity and compatibility. The results showed that the viscosity contribution of SBS is determined by its molecular structure and phase morphology.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Artem A. Petrov, Ekaterina A. Titova, Aydar A. Akhmadiyarov, Ilnaz T. Rakipov, Boris N. Solomonov
Summary: This work focuses on the thermochemistry of solvation of azeotropes. The enthalpies of dissolution of azeotropes in different mediums were determined, and the impact of the structure of the azeotropes on their properties in solution was discussed. A correlation between enthalpies of solvation and molar refraction was used to determine the vaporization enthalpies of azeotropes for the first time. The results were found to be consistent with literature data, obtained using direct and calculated methods. These findings contribute to the analysis of the structure-property relationships of azeotropes.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
L. V. Kamaeva, E. N. Tsiok, N. M. Chtchelkatchev
Summary: Understanding the correlations between liquids and solids allows us to predict the thermodynamic parameter range favorable for the formation of intriguing solid phases by studying liquids. In this study, we experimentally and theoretically investigated an Al-Cu-Co system within different composition ranges, and identified high-temperature solid phases. Our findings demonstrated the correlation between the boundaries of different solid phases and undercooling and viscosity in the concentration area.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
R. Aneesh Kumar, S. Jamelah Al-Otaibi, Y. Sheena Mary, Y. Shyma Mary, Nivedita Acharjee, Renjith Thomas, Renjith Raveendran Pillai, T. L. Leena
Summary: In this study, the interactions between doped and pristine coronenes and adenine nucleobases were investigated using Density Functional Theory. The optimal configurations, adsorption energies, charge transfer, and electrical properties of each complex were calculated. It was found that doped coronene had stronger adsorption strength and charge transfer compared to pristine coronene. The stability of the complexes was attributed to non-covalent interactions in the interactive region. The change in electrical conductivity of coronenes after adsorption suggested their sensitivity towards DNA bases. The predicted energy gap and prolonged recovery time for adenine-coronene configurations indicated the potential application of pristine/doped coronene in DNA detection.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Gang Zhou, Yongwei Liu, Biao Sun, Zengxin Liu, Cuicui Xu, Rulin Liu, Qi Zhang, Yongmei Wang
Summary: The CFD-DEM method was used to simulate the dust deposition pattern in the bronchus of anchor digging drivers, revealing the highest dust concentration in the vortex region of the working face. The study also found a positive correlation between dust particle diameter and bronchial deposition rate, and a negative correlation with alveolar deposition rate.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Yan Zhang, Yafei Luo, Lingkai Tang, Mingyan E, Jianping Hu
Summary: This study investigates the effects of different transition metal decorations on B12N12 nanocages on the adsorption properties of nitrosourea drugs using computational methods. The results reveal the presence of weak non-covalent interactions between metals and nanocages, and the interaction between drugs and nanocages plays a significant role in drug adsorption. Compared to free drugs, the adsorption of drugs on nanocages can facilitate electron transfer, reduce energy gaps and chemical hardness, indicating activity at the target site.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
C. I. Alcolado, J. Poblete, L. Garcia-Rio, E. Jimenez, F. J. Poblete
Summary: In this study, the selective oxidation of aromatic aldehydes was investigated using Ru(VI) as a catalyst and hexacyanoferrate (III) as a cooxidant in an alkaline medium. The reaction mechanism involves complex reaction orders for the oxidant and the aromatic aldehyde, while the reaction order for Ru(VI) is one. The proposed mechanism includes two catalytic cycles and the formation and decomposition of complexes. Quantitative structure-activity relationship analysis showed that deactivating groups in the para-position enhance the process.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Inez A. Barbieri, Marcos L. S. Oliveira, Franciele S. Bruckmann, Theodoro R. Salles, Leonardo Zancanaro, Luis F. O. Silva, Guilherme L. Dotto, Eder C. Lima, Mu. Naushad, Cristiano R. Bohn Rhoden
Summary: This study evaluated the adsorption of zolpidem on magnetic graphene oxide and synthesized magnetic graphene oxide adsorbents for zolpidem removal. The best magnetic nanoadsorbent was found to have a removal percentage of 87.07% at specific pH and temperature conditions. The results suggest that the removal of zolpidem is related to the surface chemistry of the adsorbent rather than the surface area of graphene oxide. The adsorbent showed excellent adsorption efficiency and magnetic behavior, making it a promising material for removing zolpidem from aqueous solutions.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Hongyan Huang, Chunquan Li, Siyuan Huang, Yuling Shang
Summary: This study examines the sensitivity of the thermal conductivity of water-based alumina nanofluids to changes in concentration, sphericity, and temperature. The results show that volume fraction and temperature have a significant impact on the thermal conductivity, while sphericity also needs to be considered. A support vector machine regression model was created to analyze the sensitivity of the thermal conductivity to different parameters. The findings indicate that temperature, sphericity, and volume fraction are the most sensitive variables.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Correction
Chemistry, Physical
V. M. Pergamenshchik, T. Bryk, A. Trokhymchuk
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Valentyn Rudenko, Anatolii Tolochko, Svitlana Bugaychuk, Dmytro Zhulai, Gertruda Klimusheva, Galina Yaremchuk, Tatyana Mirnaya, Yuriy Garbovskiy
Summary: This paper reports on the synthesis, structural characterization, spectral and nonlinear-optical properties of glass nanocomposites made of glass forming ionic liquid crystals and nanoparticles. The study reveals that by exciting the nanocomposites within their absorption band, a control over effective optical nonlinearities can be achieved, allowing the modification of the magnitude and sign of the effective nonlinear absorption coefficient. The proposed strategy using metal-alkanoates based glass-forming ionic liquid crystals and nanoparticles shows great potential for the development of nanophotonics and plasmonics technologies.
JOURNAL OF MOLECULAR LIQUIDS
(2024)