Article
Chemistry, Physical
Yuanming Deng, Xi Zou, Zairan Liu, Jinzhi Wang, Zhong Wang, Jiaoning Tang
Summary: A highly efficient three components nanocomposites were prepared via thermal degradation of LDHs@PVA composites, showing excellent performance in activating PMS to degrade organic pollutants. The catalyst demonstrated great stability and catalytic activity through cycling experiments and degradation tests, with free radical scavenging experiments confirming the key factors for degradation. The proposed mechanism for Co7Fe3/CoFe2O4@C (Co/Fe = 1:1) catalyzing PMS degradation of organic pollutants suggests a promising application prospect.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Xindan Zhang, Jun Wang, Bingbing Xiao, Yujuan Pu, Yunchuan Yang, Jisheng Geng, Dongyu Wang, Xianjie Chen, Yunxia Wei, Kun Xiong, Yongfa Zhu
Summary: In this study, a hydrogen peroxide-free resin photo-Fenton system was developed for efficient degradation of organic pollutants. The system exhibited excellent performance due to the synergistic effect of hydroxyl radicals and holes, resulting in significantly higher degradation rates compared to other systems. The high performance was mainly attributed to the reduction of iron ions by electrons and increased utilization of hydrogen peroxide, as well as the prevention of macromolecular polymer intermediates, leading to high mineralization efficiency. This finding offers a promising route for eco-friendly and efficient wastewater treatment using visible-light photo-self-Fenton systems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Yina Guan, Siwei Zhao, Jiaqi Li, Xianhe Deng, Shouchun Ma, Yanqiu Zhang, Baojiang Jiang, Tongjie Yao, Baifu Xin, Jiaxu Zhang, Jie Wu
Summary: The Photo-Fenton reaction combining the photocatalytic reaction and Fenton reaction showed excellent degradation performance. Fe-C3N4/Ti3C2/C-TiO2 catalyst exhibited high photothermal effect, enhanced H2O2 activation, and at least 4.2 times higher degradation rate compared to reference catalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Environmental
Jingjing Zhang, Shan Qiu, Haopeng Feng, Tong Hu, Yanxin Wu, Ting Luo, Wangwang Tang, Dongbo Wang
Summary: A novel heterogeneous EF catalyst, Fe@Fe2O3-CeO2, was successfully synthesized for efficient degradation of organic pollutants. The catalyst exhibited excellent performance with high removal and mineralization efficiency, good recyclability and stability. The heterogeneous EF process showed promising catalytic activity towards degradation of various organic pollutants, providing insights into the reaction mechanism and facilitating its application in refractory wastewater treatment.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Anka Jevremovic, Ana Stanojkovic, Dragana Arsenijevic, Aleksandar Arsenijevic, Grigory Arzumanyan, Kahramon Mamatkulov, Jelena Petrovic, Bojana Nedic Vasiljevic, Danica Bajuk-Bogdanovic, Maja Milojevic-Rakic
Summary: This study investigates the effects of different pesticide remediation methods on cytotoxicity and finds that materials used for adsorption and oxidative degradation can have different effects on cells. It is concluded that a combination of adsorption and catalytic degradation is the optimal approach for reducing pesticide toxicity.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Chemical
Yina Guan, Gang Fu, Qianqian Wang, Shouchun Ma, Yang Yang, Baifu Xin, Jiaxu Zhang, Jie Wu, Tongjie Yao
Summary: In this study, Fe, Co, N atoms co-doped hollow carbon capsules were prepared as efficient catalysts for PMS activation. The catalysts showed high degradation efficiency of organic contaminants and good environmental adaptation, with low metal leaching.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Shusei Tanizume, Sota Maehara, Katsunori Ishii, Takamasa Onoki, Takuya Okuno, Hiromasa Tawarayama, Shinji Ishikawa, Mikihiro Nomura
Summary: By synthesizing a defect-free MFI zeolite membrane on a porous silica substrate, high selectivity and yield of olefins from methanol conversion can be achieved.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Jiahao Cui, Lina Li, Yucheng Wu, Jingyu Gao, Kun Wang, Caozheng Diao, Chun Hu, Yubao Zhao
Summary: The catalytic performance of single-atom Fe sites in PMS activation is successfully enhanced by molecular engineering on the polymeric carbon nitride (CN) framework. The regulation of polymerization process by benzene-1,4-diamine increases the carbon/nitrogen ratio and shifts the valence of single-atom Fe, resulting in favorable thermal dynamics for the high-valent Fe(IV)=O involved oxidation reaction. The carbon-rich CN supported single-atom Fe catalyst exhibits remarkable performance in the selective degradation of organic pollutants via the high-valent Fe(IV)=O oxidation pathway. These findings highlight the importance of electronic properties of the support as essential descriptors for robust single-atom catalysts in pollutant abatement.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Taoyu Yang, Deyou Yu, Dong Wang, Tao Yang, Zexiong Li, Minghua Wu, Michal Petru, John Crittenden
Summary: The Fenton-like performance of Fe-MOFs was improved by manipulating the structure of iron-oxo nodes with Fe(II) substitution, resulting in a material with stronger active sites and higher density of Fe(III) coordinatively unsaturated iron centers. This enhancement facilitated the rapid activation of H2O2 and efficient degradation of pollutants.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Applied
Anastasia Kurbanova, Dominika Zakutna, Kinga Golabek, Michal Mazur, Jan Prech
Summary: In this study, a method for preparing hydrogenation catalysts by encapsulating metallic nanoparticles into zeolite frameworks through reductive demetallation is developed. This alternative method can reduce production costs while maintaining catalytic activity and selectivity.
Article
Chemistry, Physical
Yuqing Mei, Yanqiu Zhang, Jiaqi Li, Xianhe Deng, Yang Yang, Qingfeng Yang, Baojiang Jiang, Baifu Xin, Tongjie Yao, Jie Wu
Summary: In this study, a Co-doped CeO2 nanoflower catalyst with high adsorption capacity and degradation efficiency was prepared for Fenton-like reaction. The nanoflower structure had a hierarchical porous structure, and Co doping increased the number of Ce(III) sites and defects, resulting in an enhanced maximum adsorption capacity. The high activity of Co towards the activation of PMS significantly improved the degradation rate. Additionally, the catalyst exhibited high efficiency in the degradation of various organic pollutants and demonstrated excellent reusability after multiple cycles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Environmental
Ling Zhang, Rui Tu, Guoqing Ren, Zhen Li, Shengliang Zhai, Yuchun Xu, Tie Yu
Summary: Optimizing propene selectivity, propene/ethene (P/E) ratio, and catalytic stability in methanol-to-olefin (MTO) research is challenging. A strategy of controlling the acidity of MFI-zeolites through incorporating gallium(III) centers into Silicalite-1 (S-1) is reported. The resultant GaS-1(1.3) zeolite exhibits remarkable propene selectivity, P/E ratio, and catalytic stability, promoting the application of zeolites in sustainable manufacturing of light olefins.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Yang Yang, Qianqian Wang, Rashed Aleisa, Tingting Zhao, Shouchun Ma, Guoxu Zhang, Tongjie Yao, Yadong Yin
Summary: Nanocomposites containing FeS as catalyst and MoS2 as cocatalyst have been synthesized for efficient heterogeneous Fenton reaction. The composite shows best performance at near-neutral conditions and can address challenges in conventional Fenton reactions, with high efficiency in recycling experiments. It is believed to be an efficient heterogeneous Fenton catalyst that can greatly enhance advanced oxidation processes in solving practical environmental issues.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Pharmacology & Pharmacy
Weipeng Chen, Miao Liu, Hanping Yang, Alireza Nezamzadeh-Ejhieh, Chengyu Lu, Ying Pan, Jianqiang Liu, Zhi Bai
Summary: Metal-phenolic networks (MPNs), self-assembled nanomaterials composed of metal ions and polyphenols, have rapidly developed and gained wide attention in the biomedical field. The Fe-based MPNs, as the most common subclass, are extensively used for tumor treatment through chemodynamic therapy (CDT) and phototherapy (PTT), exhibiting excellent drug encapsulation, Fenton reactivity, and photosensitizer properties. This review summarizes the strategies for preparing various types of Fe-based MPNs, highlights their advantages under different polyphenol ligands, and discusses current challenges and future perspectives for biomedical applications.
Article
Chemistry, Physical
Guojun Lv, Tao Wang, Xuyang Zou, Jialing Shen, Jiangzhang Wang, Yan Chen, Fumin Wang, Xubin Zhang
Summary: In this study, highly dispersed copper oxide on hollow Fe-MFI zeolite (CuO/FeS-1) was synthesized and applied as a catalyst for tetracycline degradation, exhibiting a high degradation rate under experimental conditions. Electron paramagnetic resonance technology revealed the active species present in CuO/FeS-1 zeolite.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Engineering, Chemical
Daniel D. Athayde, Julius Motuzas, C. Diniz da Costa, Wander L. Vasconcelos
Summary: This study successfully demonstrates the preparation of high quality carbon membranes on alumina freeze-cast substrates using a two-step wet and dry surface coating method for desalination by pervaporation. The membranes consistently showed high salt rejection up to 99% and water fluxes as high as 14.6 L m(2) h(-1), with carbonization temperature affecting the carbon structure and water diffusion through the films. Traditional single-step dry surface membranes failed due to large pores and pore wetting during desalination.
Article
Engineering, Chemical
Mingming Wang, Xiaoyao Tan, Julius Motuzas, Jiaquan Li, Shaomin Liu
Summary: The study produced metallic nickel hollow fiber membranes with a dense skin layer and porous nickel substrate for hydrogen production from methane steam reforming. The membranes showed high efficiency and stability, making them a promising option for cost-effective hydrogen production at high temperatures.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Materials Science, Ceramics
Dana L. Martens, Julius Motuzas, Simon Smart, Joao C. Diniz da Costa
Summary: This study analyzed the hydrothermal treatment effect on cobalt silica-seeded xerogels, showing that the sol-gel seeding (SG) series had higher pore volume and surface area at higher Co loading. Additionally, surface area and pore volume retention increased with Co loading. Analysis of pore size distribution revealed densification in certain ranges and enlargement in others.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Chemical
Weng Fu, Julius Motuzas, David Wang, Christelle Yacou, Anne Julbe, James Vaughan, Joao C. Diniz da Costa
Summary: A novel membrane macropore storage mechanism induces fast salt crystallization in mesoporous top-layers, providing ideal conditions for crystal nucleation and growth during membrane pervaporation. This technology could potentially be considered for unlocking and processing strategic global minerals from brines.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Anita Haeussler, Anne Julbe, Stephane Abanades
Summary: The study evaluated suitable non-stoichiometric metal oxides for solar fuels production and found La0.5Sr0.5Mn0.9Mg0.1O3 to be a promising material.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
Nikos Kyriakou, Louis Winnubst, Martin Drobek, Sissi de Beer, Arian Nijmeijer, Marie-Alix Pizzoccaro-Zilamy
Summary: Polyimide networks are crucial for developing stable, resilient, and efficient membranes for separation applications under demanding conditions. A simple nanofabrication approach was presented to achieve controlled nanoconfinement, growth, and attachment of PI networks inside the mesopores of gamma-alumina layers. These hybrid PI/ceramic membranes showed stable performance in various solvents, making them highly efficient in challenging separations of small organic dye molecules. This technique opens up possibilities for a multitude of separations and other applications requiring porosity and stability control.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Wanda Kellouai, Patrick Judeinstein, Marie Plazanet, Simon Baudoin, Martin Drobek, Anne Julbe, Benoit Coasne
Summary: Molecular simulations and experiments were conducted to investigate methane adsorption in MFI zeolite. The results showed qualitative and quantitative differences in adsorption behavior between internal porosity and external surface of the zeolite. A thermodynamic formalism was proposed to predict methane adsorption in nanoporous solids, providing a general rational framework for fluid adsorption in finely divided materials.
Article
Chemistry, Physical
Alex Le Gal, Marielle Valles, Anne Julbe, Stephane Abanades
Summary: The main challenges and obstacles to the development of hydrogen/carbon monoxide production from the splitting of water/carbon dioxide through two-step solar thermochemical cycles are related to material concerns. This study investigates a new class of metal oxides, high entropy oxides (HEOs), to improve the specific amount of fuel generated per cycle with good kinetic rates.
Article
Nanoscience & Nanotechnology
Kevin Dedecker, Martin Drobek, Vincent Rouessac, Anne Julbe
Summary: This study compares the adsorption properties and selectivity of two isostructural metal-organic frameworks (MOFs), [Cu(2-pymo)2]n and [Pd(2-pymo)2]n, for linear, cyclic, and aromatic volatile organic compounds (VOCs). Experimental and computational investigations show that the MOF with palladium as the metal center has stronger affinity for aromatic compounds compared to copper. Additionally, the [Pd(2-pymo)2]n MOF exhibits preferential adsorption of benzene over toluene due to steric hindrance effects.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Chemical
Gianni Olguin, Christelle Yacou, Julius Motuzas, Maik Butterling, Wilhelm A. Meulenberg, Simon Smart, Joao C. Diniz da Costa
Summary: This work investigates the in-situ structural characterization of silica derived thin film membranes using positron annihilation lifetime spectroscopy (PALS). The study found that the pore size distribution depth profile and coating layers had an impact on the pore size and gas separation.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Rasyidah Alrozi, Nor Aida Zubir, Noor Fitrah Abu Bakar, Bradley P. Ladewig, Julius Motuzas, Noor Hana Hanif Abu Bakar, David K. Wang, Joao C. Diniz da Costa
Summary: The substitution of different types of B-site metal cations in the perovskite structure had a significant effect on the catalytic reactivity of the resulting catalysts. In this study, mixed oxides containing B-site substituted CaMFeO3 (M = Cu, Mo, and Co) perovskite catalysts were synthesized, and their catalytic reactivity was investigated in the oxidative degradation of acid orange II (AOII) dye using a Fenton-like reaction. The results showed that CaCuFeO3 exhibited the highest degradation efficiency (97%), followed by CaMoFeO3 (90%), CaFeO3 (64%), and CaCoFeO3 (40%). The enhanced catalytic activity of CaCuFeO3 was attributed to the high reducibility of copper/iron ions within the B-site structure, which facilitated fast redox cycling of the active sites during catalysis.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Chemistry, Physical
Karla Begonia Cervantes-Diaz, Martin Drobek, Anne Julbe, Julien Cambedouzou
Summary: SiC foams were synthesized from preceramic polymers impregnated into polyurethane foam templates, exhibiting photocatalytic activity for the degradation of methylene blue. The SiC foams were characterized for their crystal structure, electronic properties, and photocatalytic performance using various experimental techniques. The prepared SiC-based photocatalyst showed promising activity under visible light irradiation, making it a potential candidate for the treatment of contaminated waste waters in ambient conditions as a catalytic contactor or membrane reactor.
Article
Biochemistry & Molecular Biology
Alex Le Gal, Anne Julbe, Stephane Abanades
Summary: This study investigates the generation of solar thermochemical fuel through two-step thermochemical cycles using different redox-active compounds. The materials' synthesis, characterization, and performance assessment are conducted, with a focus on their ability to split CO2 during the cycles. The effect of material morphology on reactivity is also evaluated. The study finds that NiFe2O4 foam exhibits similar CO2-splitting activity as its powder form, while Ce0.9Fe0.1O2, Ca0.5Ce0.5MnO3, Ce0.2Sr1.8MnO4, and Sm0.6Ca0.4Mn0.8Al0.2O3 are not attractive candidates. Dual-phase ceria/perovskite composites show enhanced CO2-splitting performance compared to ceria.
