Article
Environmental Sciences
Shuting Tian, Tianyuan Xu, Leqi Fang, Yangmo Zhu, Fan Li, Rodney Nelson Leary, Man Zhang, Dongye Zhao, Te-Yang Soong, Hang Shi
Summary: The study tested a two-step 'Concentrate-&-Destroy' technology for removing and degrading PFAS in landfill leachate using a specific adsorptive photocatalyst. The technology effectively removed various PFAS and achieved regeneration and degradation under UV.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Yun Chen, Anett Georgi, Wenying Zhang, Frank-Dieter Kopinke, Jingchun Yan, Navid Saeidi, Jing Li, Mingyue Gu, Mengfang Chen
Summary: CuMgFe-LDH was prepared as an adsorbent for fast adsorption of PFOS and PFOA, primarily driven by hydrophobic interactions. While PFOA adsorption was suppressed under alkaline conditions, PFOS uptake was only slightly affected, indicating the significant role of electrostatic interactions for PFOA adsorption. The adsorption of PFOS and PFOA was insensitive to competition by monovalent anions, and spent CuMgFe-LDH could be easily regenerated for subsequent usage cycles.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Jie Yuan, Soroosh Mortazavian, Elodie Passeport, Ron Hofmann
Summary: This study evaluated the removal of perfluorooctanic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) using granular activated carbon (GAC) harvested from filter-adsorbers in drinking water treatment plants. The results showed that GAC can achieve significant removal of PFOA and PFOS through adsorption. Factors such as GAC service time and empty bed contact time (EBCT) were found to affect the removal efficiency. An empirical model was proposed to predict the removal of PFOA and PFOS based on GAC service time and EBCT.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Mark L. Brusseau
Summary: The objective of this study was to determine the most representative methods of measuring air-water interfacial area for the retention and transport of PFAS and other interfacially active solutes in unsaturated porous media. Comparing multiple measurement and prediction methods, it was found that all methods produced coincident results for the interfacial area of glass beads, validating the aqueous interfacial tracer-test methods. The differences in interfacial areas measured for sands and soil were shown to be due to method-dependent contributions of solid-surface roughness.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Chemical
Shaohua Sun, Bing Sun, Xiaomei Zhu, Yutong Yang, Hui Liu
Summary: In this study, a new treatment method called microwave discharge plasma in liquid (MDPL) was used to study the defluorination of PFOA and PFOS. Factors such as initial concentration of pollutants, microwave input power, and distance between electrode and liquid were investigated to understand their effects on the defluorination rate. The results showed that MDPL was highly effective in defluorinating PFOA and PFOS, with the addition of Fe2+ further enhancing the defluorination rates. Reactive species experiments confirmed that eaq- played a key role in initiating the decomposition of PFOA and PFOS. Furthermore, the decomposition mechanism and degradation pathway of PFOA and PFOS were analyzed.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Mark L. Brusseau, Bo Guo, Dandan Huang, Ni Yan, Ying Lyu
Summary: PFAS transport in unsaturated porous media is affected by surfactant-induced flow and nonlinear air-water interfacial adsorption. Experimental results show that AWIA is linear when the input concentration is sufficiently below the critical reference concentration.
Article
Engineering, Environmental
Maura Mancinelli, Claudia Stevanin, Matteo Ardit, Tatiana Chenet, Luisa Pasti, Annalisa Martucci
Summary: The adsorption efficiency of Y-type zeolites with different silica/alumina ratios towards perfluorooctanoic acid and perfluorooctane sulfonate was studied. The results showed that these materials can be successfully used for the decontamination of water from perfluoroalkyl chemicals. Additionally, the introduction of silver onto the zeolites improved the performances in removing PFAS from water.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Prashan M. Rodrigo, Chanaka Navarathna, Michael T. H. Pham, Sarah J. McClain, Sean Stokes, Xuefeng Zhang, Felio Perez, Sameera R. Gunatilake, Akila G. Karunanayake, Renel Anderson, Rooban V. K. G. Thirumalai, Dinesh Mohan, Charles U. Pittman, Todd E. Mlsna
Summary: The study investigates the adsorption of PFAS compounds on commercial Douglas fir biochar and its magnetic Fe3O4-containing analogue. The results show that both BC and Fe3O4/BC have a high adsorption capacity for PFOS and PFOA, and the adsorption process is driven by hydrophobic and electrostatic interactions. The adsorbents can effectively reduce the PFAS concentrations in water to below the detection limits, approaching the EPA advisory limits. Methanol can be used for successful regeneration of the adsorbents.
Article
Engineering, Environmental
Maura Mancinelli, Claudia Stevanin, Matteo Ardit, Tatiana Chenet, Luisa Pasti, Annalisa Martucci
Summary: The adsorption efficiency of Zeolites Y with different silica/alumina ratios towards PFOA and PFOS was investigated, with the Ag-exchanged sample showing higher saturation capacity. XRPD analyses provided insights into the exact location of PFOA and PFOS in the zeolites network and the interaction mechanism with silver.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Applied
S. Sd Elanchezhiyan, Jayaram Preethi, Karthik Rathinam, Lewis Kamande Njaramba, Chang Min Park
Summary: The study focused on mitigating the presence of PFOA and PFOS in water using a modified adsorbent, where Langmuir isotherm analysis revealed maximum adsorption capacities of 16.07 mg/g for PFOA and 21.64 mg/g for PFOS. The removal of PFOA and PFOS was driven by both electrostatic attractions and hydrophobic interactions, highlighting the potential efficiency of rGO-ZF@CB as an adsorbent for environmental remediation.
CARBOHYDRATE POLYMERS
(2021)
Article
Environmental Sciences
M. L. Brusseau, B. Guo
Summary: This research focused on the relationship between soil porewater concentrations and soil concentrations of PFAS, based on a comprehensive model. The model was validated using measured parameters and literature data, showing accurate predictions of concentration ratios. Numerical simulations demonstrated the importance of air-water interfacial adsorption for the distribution of longer-chain PFAS. It was found that PFAS soil porewater concentrations can vary from ng/L to mg/L depending on soil concentrations and site conditions.
Article
Environmental Sciences
Navid Saeidi, Frank-Dieter Kopinke, Anett Georgi
Summary: The study found that chemical modification of activated carbon materials through amino-functionalization and thermal defunctionalization can significantly enhance the adsorption of PFOA and other PFAAs, with a focus on the importance of electrostatic interactions and charge compensation for PFAAs. The results contribute to the optimized selection of adsorbents for PFAA adsorption from water.
Article
Environmental Sciences
Ana Lopez-Antia, Benjamin Pina, Silvia Lacorte, Lieven Bervoets, Marcel Eens
Summary: In this study, the effects of environmentally-relevant levels of PFAS on caged canaries were analyzed using physiological, immunological, and transcriptomic analyses. Although no effects were observed on physiological and immunological parameters, the transcriptome of the pectoral fatty tissue showed changes compatible with the known effects of PFAS as obesogens in other vertebrates. These results indicate the potential hazard of PFAS on the fat metabolism and the immunological system of birds and highlight the ability of transcriptomic analyses to detect early physiological responses to toxicants. Tight control of the exposure of natural populations of birds to these substances is necessary due to the essential functions affected.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Yiyi Xu, Christel Nielsen, Ying Li, Sofia Hammarstrand, Eva M. Andersson, Huiqi Li, Daniel S. Olsson, Karin Engstrom, Daniela Pineda, Christian H. Lindh, Tony Fletcher, Kristina Jakobsson
Summary: The drinking water supplied to one third of households in Ronneby, southern Sweden was highly contaminated by PFAS, with residents showing significantly elevated serum PFAS levels in comparison to a reference group. PFHxS, PFOS, and PFOA levels were much higher in the residents, with age and gender influencing the serum PFAS levels.
ENVIRONMENT INTERNATIONAL
(2021)
Review
Environmental Sciences
Kyle Steenland, Andrea Winquist
Summary: This study critically reviewed the evidence relating to PFAS and cancer, finding a strong association with testicular and kidney cancer. However, there are inconsistencies in the data regarding prostate cancer. Long-term follow-up of large cohorts with high exposure contrasts is likely to provide more informative results.
ENVIRONMENTAL RESEARCH
(2021)
Article
Chemistry, Applied
Qing Liu, Fang Li, Hao Lu, Man Li, Jing Liu, Shuangling Zhang, Qingjie Sun, Liu Xiong
Article
Chemistry, Applied
Ranran Chang, Hao Lu, Man Li, Shuangling Zhang, Liu Xiong, Qingjie Sun
Article
Chemistry, Applied
Shaoning Cui, Man Li, Shuangling Zhang, Jing Liu, Qingjie Sun, Liu Xiong
FOOD HYDROCOLLOIDS
(2018)
Article
Food Science & Technology
Yue Han, Lixin Wang, Wenping Jiang, Qijing Du, Chundi Yu, Qingjie Sun, Shuangling Zhang
JOURNAL OF FOOD SCIENCE
(2019)
Article
Chemistry, Applied
Lixin Wang, Shuangling Zhang, Wenping Jiang, Haiyan Zhao, Juanjuan Fu
FOOD HYDROCOLLOIDS
(2020)
Article
Food Science & Technology
Shuangling Zhang, Wenping Jiang, Zhiwei Zhang, Yinglian Zhu, Lixin Wang, Juanjuan Fu
LWT-FOOD SCIENCE AND TECHNOLOGY
(2020)
Article
Chemistry, Applied
Juanjuan Fu, Yinglian Zhu, Fansheng Cheng, Shuangling Zhang, Tiantian Xiu, Yue Hu, Shuo Yang
Summary: In this study, CHC-CMC nanoparticles were used to stabilize water-in-oil-in-water emulsions, showing better stability compared to Tween 80. The emulsions exhibited double microstructures and higher stability after 30 days, indicating the strong ability of CHC-CMC in stabilizing the emulsion.
CARBOHYDRATE POLYMERS
(2021)
Article
Food Science & Technology
Tiantian Xiu, Peng Liu, Shuangling Zhang, Dehong Du, Changhui Xue, Yue Hu, Shuo Yang, Zixuan Dongye, Mengchen Kang, Zhenru Li, Li Wang
Summary: Polyphenols complexes were extracted and purified from Common millet, Long-grain rice, and Huaihe wheat. The extracted complexes exhibited high phenol content and antioxidant activity. Thirteen typical polyphenol complexes were identified, including some compounds that were detected for the first time. TEM imaging showed that the complexes had rough spherical structures. Furthermore, it was found that Common millet had a higher alpha-amylase inhibition rate, which could be a potential foundation for the development of hypoglycemic drugs.
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Applied
Shuo Yang, Shuangling Zhang, Zhongfeng Qu, Tiantian Xiu, Yue Hu, Chengwang Chen, Ning Lv
Summary: This study aimed to solve the problem of cherry rain-cracking by using cold-water fish gelatin (CFG)-based edible films. The results showed that the CFG-CNC-CA (MF) film, reinforced by rod-spherical dual-nanoscale structures, exhibited superior coating-ductility, hydrophobic, water-vapor barrier, mechanical, and retention properties. Furthermore, cherries treated with CFG-CNC-CA (MF) had significantly reduced cracking index (CI) and cracking ratio (CR).
FOOD HYDROCOLLOIDS
(2022)
Article
Chemistry, Physical
Li Wang, Xiaofang Cheng, Shuangling Zhang, Zixuan Dongye, Mengchen Kang, Zhenru Li, Chengwang Chen, Yaru Qian, Yuhang Ren
Summary: This study investigated the rheological/interfacial behavior and stability properties of oil-in-water nanoemulsions prepared using whey protein-carboxymethyl chitosan conjugates. The results showed that the conjugation improved the hydrophobicity of whey protein and enhanced its emulsifying activity and stability, resulting in smaller droplet nanoemulsions. This work provides insight into the role of whey protein-carboxymethyl chitosan conjugates in stabilizing droplets at the oil-water interface.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Agriculture, Multidisciplinary
Shuangling Zhang, Zixuan Dongye, Li Wang, Zhenru Li, Mengchen Kang, Yaru Qian, Xiaofang Cheng, Yuhang Ren, Chengwang Chen
Summary: The effects of environmental pH on the properties of whey protein-epigallocatechin gallate (WP-EGCG) non-covalent nanocomplexes and the WP-EGCG interactions were investigated. The results showed that the antioxidant activity of the non-covalent complexes was stronger than the covalent conjugates, and the strongest antioxidant activity was observed at pH 6.2-7.1. The interaction between WP and EGCG was stronger under neutral and weakly acidic conditions, suggesting the preferable formation of non-covalent nanocomplexes.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Article
Chemistry, Applied
Lulu Wan, Gan Ye, Yuying Chang, Zhaohan Yang, Guangming Shi, Qiuli Zhang, Jin Wang
Summary: This study developed an efficient approach to upgrade the oxidative desulfurization (ODS) performance of Zr-MOFs with proton stimulation. Experimental results showed that the introduction of protons can significantly improve the ODS efficiency. This work provides a facile and efficient strategy for enhancing the ODS performance of pristine MOFs.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Qiqi Lu, Xiu-Zhi Wei, Qi Zhang, Xinghua Zhang, Lungang Chen, Jianguo Liu, Yubao Chen, Longlong Ma
Summary: The application of Pd-M bimetallic clusters in the selective hydrogenation reaction was investigated, and the Pd0.6Ni@S-1 catalyst was found to exhibit high selectivity in the conversion of phenylacetylene to styrene. The confinement effect of zeolite inhibited over-hydrogenation and improved the stability of the catalysts. Furthermore, the solvent properties also influenced the product distribution.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Review
Chemistry, Applied
Bo Li, Lumin Hong, Changdi Jing, Xianyang Yue, Huabo Huang, Qianqian Jiang, Jianguo Tang
Summary: MOF materials with adjustable pore structure and polymetallic sites have been explored as electrocatalysts for OER. Bimetallic materials show higher electrocatalytic activity than monometallic materials, while carbon-coated and doped MOF catalysts exhibit stable and good OER activity. The synergistic interaction between polymetallic active sites effectively improves the intrinsic activity of MOF on OER.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Shichun Gu, Ruyi Wang, Junxiong Zhang, Hairong Dong, Liping Deng, Xue Wang, Yapeng He
Summary: In this study, monodispersed hollow mesoporous organosilica nanospheres with controlled core cavity and mesoporous shell were successfully synthesized. These hollow nanospheres showed a high adsorption capacity for Pb2+ in water solution and exhibited acceptable recycling and stability.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Lucie Havelkova, Bogdana Bashta, Michaela Vankova, Jiri Zednik, Jiri Brus, Jan Svoboda, Alice Vagenknechtova, Jan Sedlacek
Summary: An atom-economic one-step chain-growth coordination homopolymerization providing high yields of functionalized hyper-cross-linked polyacetylenes with a permanent micro/mesoporous texture and a BET area of up to 1062 m2/g is reported. The homopolymerization is highly compatible with the heteroatom groups of the monomers and allows the preparation of well-defined porous networks with a wide spectrum of univalent groups.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Shirui Pang, Yuxin Liu, Zhe Zhang, Yuxin Li, Chunguang Li, Zhan Shi, Shouhua Feng
Summary: This study focuses on using a functional separator to suppress the shuttle effect of soluble lithium polysulfides in Li-S batteries. It is found that the functionalized sulfonic acid group not only accelerates the conduction of lithium ions, but also repels polysulfide anions through electrostatic interactions. The performance of the batteries is significantly improved with the use of this functionalized separator.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Pingping Li, Lei Han, Donghun Kim, Kemal Celebi
Summary: This study presents a fast synthetic strategy for the preparation of high-quality platelike MFI crystals using a thin-wall tubular reactor. The strategy is efficient, time-saving, and can be optimized, making it applicable to the preparation and optimization of other important materials.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Haitao Yin, Wei Wang, Yuxin Li, Hu Wen, Shuang Chen, Nanzhe Jiang
Summary: This study presents a template-free and solid-state-like crystallisation method for the synthesis of ZSM-5 zeolite, which can be scaled-up in production. Mechanical mixing of starting material components improves the dispersion of materials, leading to ZSM-5 zeolite with high crystallinity and size uniformity.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Congli Li, Jiang Wang, Zhenfei Wang, Jinxiang Dong, Qi Shi
Summary: This study investigates the evolution and autoreduction behavior of Cu species in CuCl/NaY adsorbent during vacuum thermal activation. It is found that Cu species migrate from supercages to the nearby plane of the six-membered ring connecting the supercage and sod cage during vacuum activation. At 150 degrees C, vacuum autoreduction occurs, resulting in the formation of Cu+Cl- species. The results provide reference for the preparation of pi-complex adsorbents.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Irena Khatrin, Iman Abdullah, Alan J. Mccue, Yuni K. Krisnandi
Summary: Hierarchical porous system with two types of mesopores provides a solution to the diffusion limitation in conventional zeolites. Cobalt oxide impregnated hierarchical ZSM-5 zeolite samples with intra- and inter-crystalline mesopores were synthesized using two different strategies. The physicochemical properties of the modified catalysts were analyzed, revealing distinct features given by the two mesoporous configurations. Catalytic activity analysis showed that Co-oxide/ZSM-5 with inter-crystalline mesopores exhibited higher activity in methane partial oxidation reaction compared to Co-oxide/ZSM-5 with intra-crystalline mesopores.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Nataliia Reinders, Martin Durovic, Pavla Honcova, Zaneta Dohnalova, Jana Luxova, Stanislav Slang, Jhonatan Rodriguez-Pereira, Petra S. Sulcova
Summary: This study presents a new method for preparing a microporous Ni2P/C catalyst with high catalytic activity. The redox reaction and carbon matrix formation during high-temperature treatment contribute to the stability and activity of the catalyst. Experimental and analytical results suggest that the microporous structure of the composite plays a crucial role in its catalytic performance. These findings are important for practical applications of efficient hydrogen production by water electrolysis.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Ana Raquel Bertao, Viktoriya Ivasiv, Cristina Almeida-Aguiar, Patricia R. Correia, Antonio M. Fonseca, Manuel Banobre-Lopez, Fatima Baltazar, Isabel C. Neves
Summary: This study developed a zeolite-based delivery system (ZDS) using silver and 5-Fluorouracil as antimicrobial and antineoplastic agents. The ZDS was characterized and its antimicrobial properties were investigated, showing better antibacterial effectiveness for the ZDS containing both silver and 5-FU.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Naonobu Katada, Nobuki Ozawa, Etsushi Tsuji, Keigo Kanehara, Akiho Otsuka, Taiga Sakamoto, Kirari Umezawa, Hitoshi Matsubara, Satoshi Suganuma, Momoji Kubo
Summary: First principles calculations were used to investigate the pathway for methylation of benzene with methane catalyzed by MFI type zeolite-supported Co species. The strong adsorption of benzene on Co is found to lower the activation energy for methane dissociation and promote the formation of toluene precursor. The activation energy of methane dissociation is also affected by the Al-Al distance.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Yuan Liu, An T. Ta, Kyoung Chul Park, Shenyang Hu, Natalia B. Shustova, Simon R. Phillpot
Summary: We use density functional theory to investigate the interactions of cerium, americium, and curium cations with crown ethers. Our results demonstrate that crown ethers can capture cerium, americium, and curium ions, and modifying the crown ether structure by substituting nitrogen atoms for oxygen atoms significantly increases their binding energies with radionuclides.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Zhengwu Peng, Shixing Wang, Yihui Wu, Xiang Liu, Hongliang Liu, Dekun Zhang, Likang Fu
Summary: An efficient adsorbent for recovery of germanium was prepared and characterized in this study. The adsorption behavior of Ge(IV) on the adsorbent was analyzed, and the results showed that it follows pseudo-secondary kinetic model and Langmuir isotherm model. The adsorbent exhibited good anionic anti-interference ability and can still maintain high adsorption efficiency after repeated adsorption.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)