Article
Environmental Sciences
Jialin Jia, Stefanos Giannakis, Dong Li, Boyin Yan, Tao Lin
Summary: A novel catalytic system was developed by anchoring Ag nanoparticles on pretreated TiO2 nano-tube arrays, leading to effective photocatalytic inactivation of Escherichia coli (E. coli). The catalyst exhibited excellent inactivation performance under the presence of peroxymonosulfate and visible light, with complete inactivation of 6-log E. coli within 60 min. The system showed high reusability and the inactivation mechanism involved both radical and non-radical pathways, with the assistance of silane coupling agent playing a pivotal role.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Inorganic & Nuclear
Masoud Moradi, Azra Naderi, Niloufar Bahari, Motahareh Harati, Jorge Rodriguez-Chueca, Roshanak Rezaei Kalantary
Summary: The study found that TiO2NP can effectively photocatalytically inactivate E. coli. Operational parameters such as pH, aeration, inorganic ions, and organic matter content have an impact on bacterial inactivation. TiO2NP has better disinfection effect than other catalysts.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Engineering, Environmental
Ahlam Belgroune, Linda Aissani, Akram Alhussein, Mourad Zaabat, John Kiwi, Sami Rtimi
Summary: The bacterial inactivation kinetics of Escherichia coli (E. coli) by sputtered TiMoON and TiMoON-Ag films were studied under simulated solar light irradiation. The study found that genetically modified porinless E. coli degraded slower than normal E. coli due to the transfer of Ag+-ions from the Ag-films. The TiMoON-Ag films showed potential for disinfection of medical surfaces and devices under solar light.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Fatemah Ghorbani, Farhang Tirgir, Abbas Jafari
Summary: In this project, pseudo-poly(amino acid)s (PAAs) containing different amino acids were synthesized and silver nanoparticles were incorporated by a in situ method for disinfection purposes. The chemical and physical properties of the synthesized materials were characterized using various analytical techniques.
COLLOID AND POLYMER SCIENCE
(2021)
Article
Chemistry, Physical
Florian Bocchese, Iain Brown, David Cornil, Pavel Moskovkin, Jerome Muller, Steven David Kenny, Roger Smith, Stephane Lucas
Summary: This study investigates the growth process and properties of Ag films on ZnO using magnetron sputtering through thin film growth simulations. A new method to account for defects generated by magnetron sputtering has been developed. The simulated conductivity matches experimental results with the difference attributed to electron scattering at grain boundaries. The study also shows that a patterned substrate does not increase conductivity but leads to controlled growth of small islands suitable for other applications.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Min Zhang, Miao Li, Zongkai Yan, Li Zhang, Juhang Yin, Xiaodong Ma, Weijia Li, Longjiang Deng
Summary: Ag-ZrB2 nanocomposite film prepared by magnetron co-sputtering method exhibits low emissivity in the mid-infrared waveband and lower reflectivity of visible light. Moreover, the surface of the Ag-ZrB2 nanocomposite film changes from hydrophilic to hydrophobic.
APPLIED SURFACE SCIENCE
(2022)
Article
Physics, Condensed Matter
Gaige Huang, Qiaonan Yu, Shiwen Kou, Pengwei Zhai, Guoqiang Li
Summary: Epitaxial indium tin oxide (ITO) films were successfully prepared on Yttrium Stabilized Zirconia (YSZ) substrates using direct current magnetron sputtering. The epitaxial relationship between ITO films and YSZ substrates was confirmed, with optimized deposition conditions resulting in improved electrical performance of the films, especially on YSZ (100) substrates.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Materials Science, Multidisciplinary
Claudia P. Mejia, Henry S. Vanegas, Jhon J. Olaya
Summary: The formation of nanostructured transition metal nitride coatings by introducing a small amount of silver has been proven to enhance the physical properties of these materials. This investigation studied the influence of silver on the chemical composition, morphology, and microstructure of ZrN coatings, as well as their functional properties including corrosion resistance and optical reflectance. The results showed that the incorporation of silver improved the corrosion resistance and increased the optical reflectance of the coatings, making them potentially useful as optical protective coatings.
Article
Materials Science, Multidisciplinary
Rahul Prajesh, Ravindra Kumar Jha, Vikas Saini, Mohd Nahid, Vinay Goyal, Pubali Chaudhury, Jitendra Bhargava, Ashok Kumar Sharma, Ajay Agarwal
Summary: Tin Oxide (SnO2) has proven to be an excellent receptor for chemiresistive detection of ammonia gas. Research indicates that SnO2 thin films produced using a sputtering method at a specific pressure and Ar/O-2 ratio exhibit the highest response to ammonia gas, making it an effective and controllable production method.
Article
Chemistry, Physical
Bingkun Liu, Jinyang Li, Yajun Wu, Xiaole Han, Shurui Liu, Jingtao Zhang, Hengzhen Shi
Summary: In this study, Ni-doped TiO2 nanospheres decorated with silver plasmonic nanoparticles (Ni-TiO2/Ag) were successfully synthesized, showing significantly enhanced visible-light photocatalytic sterilization efficiencies towards Escherichia coli and Fusarium graminearum. The introduction of Ni doping and Ag nanoparticles increased visible light utilization and promoted the separation of electron-hole pairs, leading to highly efficient antimicrobial activities.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Hongbo Ju, Luyao Xu, Jing Luan, Yaoxiang Geng, Junhua Xu, Lihua Yu, Junfeng Yang, Filipe Fernandes
Summary: TiN/Ag/Si3N4 composite films were deposited using RF magnetron co-sputtering system to enhance the mechanical and oxidation resistance properties of the TiN/Ag film. XRD and TEM analysis revealed the presence of three phases on the TiN/Ag/Si3N4 films: face-centered cubic (fcc) TiN, fcc-Ag, and amorphous Si3N4 phases. The hardness of the film increased from -16 GPa to -24 GPa for TiN/Ag/Si3N4 with 15.3 at.% of Si due to the formation of the nanocomposite structure. The addition of Si significantly improved the oxidation resistance temperature and prevented Ag diffusion, thereby enhancing the stability of the film's hardness after annealing treatment.
Article
Environmental Sciences
Jiaxin Ma, Yijun Shi, Dong An, Yanan Chen, Jun Guo, Yunkun Qian, Sheng Wang, Jinrong Lu
Summary: Efficient and economical technologies for drinking water disinfection are still a challenge. Researchers synthesized Ag/AgBr/LDH with different silver mass concentrations and studied its ability to inactivate E. coli under visible light irradiation. The results showed complete inactivation of E. coli within 80 minutes using 2% Ag/AgBr/LDH. The method was also effective in disinfecting effluent samples from a drinking water treatment plant, with an efficiency of 89%.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Materials Science, Multidisciplinary
Tingyu Ren, Haixiao Fang, Hongjian Zhao, Jining He
Summary: TiN-Si3N4-Ag composite coatings were prepared using magnetron sputtering, and the Ag target power was adjusted. The results showed that the surface roughness of the coatings increased with the increase of Ag target power. The mechanical properties such as hardness and elastic modulus first increased and then decreased, reaching the maximum values at an Ag target power of 10 W. Adding Ag improved the lubricating effect and increased the wear resistance of the coating.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
Henry Samir Vanegas Parra, Sebastian Calderon Velasco, Jose Edgar Alfonso Orjuela, Jhon Jairo Olaya Florez, Sandra Carvalho
Summary: In this study, Ag-ZrSiN coatings with varying silver atomic contents were produced using pulsed-DC reactive magnetron sputtering. The effects of silver incorporation on the microstructure, morphology, and optical and electrical properties were investigated. The results showed that the electrical resistivity and transmittance of the coatings decreased with increasing silver content.
Article
Materials Science, Multidisciplinary
Zhen-Dong Wang, Zhen-Quan Lai
Summary: A single (200)-oriented TiN thin film was successfully deposited on a quartz substrate by DC magnetron reactive sputtering process, and the effects of sputtering pressure and substrate temperature on the properties of the film were studied. The results showed that a single (200)-oriented TiN thin film with increased grain size can be obtained over a wide range of substrate temperatures. The film exhibited low resistivity and high optical reflectance.
Article
Environmental Sciences
M. Mejia, J. Mosquera-Pretelt, J. M. Marin, C. Pulgarin, J. Kiwi
Summary: Using succinic acid as a spacer, titanium dioxide was bound onto nylon to develop self-cleaning fibers. The innovative film showed excellent surface properties and the self-cleaning process was evaluated using various analytical techniques. Grafting TiO2 onto nylon using succinic acid proved to be a successful method for developing a new self-cleaning material.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Komal Rizwan, Muhammad Bilal, Yassine Slimani, Pau Loke Show, Sami Rtimi, Arpita Roy, Hafiz M. N. Iqbal
Summary: Increasing global concern over hazardous pollutants in water bodies due to their toxicity and threat to the environment has led to the need for new or upgraded remediation methods. Advanced oxidation processes (AOPs) utilizing highly reactive oxidizing radicals like center dot O and center dot OH have shown efficacy in the mineralization of dye pollutants. Sonolysis, a newer AOP that employs ultrasound irradiation for generating oxidizing radicals, has become a robust hybrid AOP for degrading environmental contaminants. This review focuses on the degradation of dyes through ultrasound-based AOPs and discusses different sono-based methods and their efficacy for wastewater treatment.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Environmental Sciences
Khaled Trabelsi, Mabrouk Abidi, Anouar Hajjaji, Rania Tefdini, Brahim Bessais, Sami Rtimi
Summary: This study investigates the effect of anodization time on the morphology, optical, and photocatalytic properties of TiO2 nanotubes. The results show that the length of the nanotubes increases with longer anodization time. The optimized nanotubes demonstrate efficient bacterial inactivation and degradation of organic pollutants under low-intensity solar-simulated light.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Applied
Sihem Ayadi, Noomen Moussa, Dhia Cherni, Imen Jaouali, Ahlem Guesmi, Naoufel Ben Hamadi, Ammar Houas
Summary: A series of mesoporous lacunary Keggin tungstoborate/TiO2 catalysts were prepared and characterized. The preservation of the Keggin structure was observed within a specific temperature range, and the catalyst with 4% BW11 loading exhibited high activity and selectivity in the selective oxidation of styrene.
JOURNAL OF POROUS MATERIALS
(2023)
Correction
Chemistry, Applied
Sihem Ayadi, Noomen Moussa, Dhia Cherni, Imen Jaouali, Ahlem Guesmi, Naoufel Ben Hamadi, Ammar Houas
JOURNAL OF POROUS MATERIALS
(2023)
Review
Agricultural Engineering
Ridha Djellabi, Dominic Aboagye, Melissa Greta Galloni, Vaibhav Vilas Andhalkar, Sana Nouacer, Walid Nabgan, Sami Rtimi, Magda Constanti, Francisco Medina Cabello, Sandra Contreras
Summary: The production of high-value products from lignocellulosic biomass is optimized through selective scission of crosslinked bonds. Photocatalytic technology has been proven effective in valorizing biomass at mild conditions, but low mass transfer limits high yields. The incorporation of ultrasonic cavitation enhances fragmentation and transformation of biomass. This review explores factors and tricks to boost selectivity and discusses the synergistic effects of combining sonolysis and photocatalysis.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Elaheh Torabi, Ensiyeh Taheri, Hamidreza Pourzamani, Ali Fatehizadeh, Sami Rtimi, Tejraj M. Aminabhavi
Summary: Biomass waste from pomegranate husk was converted into a carbon sheet electrode, which was effective in removing 4-chlorophenol from water. The highest removal efficiency was observed at pH 6.0, applied voltage of 1.5 V, ionic strength of 0.85 mM, and contact time of 270 min. Increasing the applied voltage significantly improved the removal efficiency, while increasing the initial 4CP concentration decreased the efficiency. The carbon electrode showed a high sorption capacity and potential for removing other phenolic compounds.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Teklit Gebregiorgis Ambaye, Mentore Vaccari, Andrea Franzetti, Shiv Prasad, Francesca Formicola, Asia Rosatelli, Aydin Hassani, Tejraj M. Aminabhavi, Sami Rtimi
Summary: Soil contamination by petroleum hydrocarbons (PHCs) is a significant problem affecting crop growth and quality. Bioelectrochemical systems (BES) are gaining attention as a promising technology for soil remediation. This review discusses the working principles, design configuration, and advancements of BES in efficiently removing PHCs from contaminated soil. It also highlights the importance of biosurfactants and biochar in enhancing PHC degradation using BES. Further research and development are needed to improve the efficiency and scalability of BES for large-scale soil remediation and power production.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Ahlam Belgroune, Linda Aissani, Akram Alhussein, Mourad Zaabat, John Kiwi, Sami Rtimi
Summary: The bacterial inactivation kinetics of Escherichia coli (E. coli) by sputtered TiMoON and TiMoON-Ag films were studied under simulated solar light irradiation. The study found that genetically modified porinless E. coli degraded slower than normal E. coli due to the transfer of Ag+-ions from the Ag-films. The TiMoON-Ag films showed potential for disinfection of medical surfaces and devices under solar light.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
L. Sellaoui, A. Gomez-Aviles, F. Dhaouadi, J. Bedia, A. Bonilla-Petriciolet, S. Rtimi, C. Belver
Summary: This study used lignin as a precursor to synthesize activated carbons and compared their properties. The best adsorbent was used to remove acetaminophen and acetamiprid from water. Statistical physics models were used to analyze the adsorption mechanisms, and a double layer adsorption model was found to be the most effective in explaining the removal of these organic molecules.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Khalid Althumayri, Ahlem Guesmi, Wesam Abd El-Fattah, Ammar Houas, Naoufel Ben Hamadi, Ahmed Shahat
Summary: This study successfully synthesized a nanocomposite adsorbent based on mesoporous silica nanotubes (MSNTs) loaded with 3-aminopropyltriethoxysilane (3-APTES@MSNTs), which was employed for the adsorption of tetracycline (TC) antibiotics. The nanocomposite exhibited a maximal TC adsorption capability of 848.80 mg/g. The characterization results revealed that the 3-APTES@MSNT nanoadsorbent possessed abundant surface functional groups, an effective pore size distribution, a larger pore volume, and a relatively higher surface area.
Article
Engineering, Environmental
V. G. Dileep Kumar, Sandhyawasini Kumari, K. R. Balaji, Afaq Ahmad Khan, C. R. Ravikumar, B. M. Basavaraja, M. S. Santosh, Sami Rtimi
Summary: This study investigates the effect of surface modifiers on the catalytic properties and degradation efficiency of a polymeric matrix (CuO/PVA) using three different surfactants: cationic (CTAB), anionic (SLS), and non-ionic (T80). The results show that surface modification significantly enhances the degradation ability of the polymeric CuO, with CTAB-assisted CuO exhibiting a 29% higher degradation rate compared to its unmodified counterpart. The surface characteristics of the catalyst, including particle size, band gap, and morphology, also play a crucial role in the degradation process.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Ines Khemissi, Lotfi Khezami, Khaled Trabelsi, Ahlem Guesmi, Abdessalem Kouki, John Kiwi, Brahim Bessais, Sami Rtimi, Anouar Hajjaji
Summary: Tantalum oxide Ta2O5 nanotubes were decorated with lead sulfide nanoparticles PbS using the SILAR method. More SILAR cycles induced a change in the optical properties and the bandgap of the PbS NPs/Ta2O5 NTs. The fastest degradation kinetics of the decorated Ta2O5 NTs-PbS NPs were achieved with 10 SILAR cycles, while longer cycles did not further accelerate the degradation kinetics due to light screening. The prepared nanotubes exhibited high stability over 5 photocatalytic reuse cycles.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Engineering, Environmental
A. Ourefelli, A. Hajjaji, K. Trabelsi, L. Khezami, B. Bessais, Tejraj M. Aminabhavi, J. Kiwi, S. Rtimi
Summary: This study presents an electrochemical preparation of Ta2O5 nanotubes decorated with Cu2O nanoparticles. These nanotubes showed fast bacterial inactivation under low-intensity solar irradiation. The Cu2O decoration accelerated the inactivation kinetics by several orders of magnitude compared to bare Ta2O5 nanotubes. The study provides a systematic characterization of the surface properties and proposes a mechanism for the antibacterial activity.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Green & Sustainable Science & Technology
Teklit Gebregiorgis Ambaye, Ridha Djellabi, Mentore Vaccari, Shiv Prasad, Tejraj M. Aminabhavi, Sami Rtimi
Summary: Because of rapid urbanization and industrialization, a large amount of municipal solid waste (MSW) is accumulating, causing negative environmental impacts. Efforts have been made globally to establish a systematic management approach and sustainable treatment technology for maximizing the resource usage of MSW. This review systematically discusses recent technological developments for valorizing MSW into valuable chemicals and energy, focusing on the material-centric approach of the circular economy and highlighting sustainable processing mechanisms.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Physical
Bolun Yu, Denan Li, Qianqian Zhu, Shufan Yao, Lifeng Zhang, Yanshuo Li, Zhenxin Zhang
Summary: This study successfully improved the catalytic activity of a zeolitic octahedral metal oxide by incorporating a single zinc species into its micropore. The zinc incorporation achieved a high ethane conversion rate and ethylene selectivity. Mechanism study showed that the isolated zinc site played a crucial role in activating oxygen and ethane, as well as stabilizing intermediates and transition states.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Ruoqi Liu, Hao Fei, Jian Wang, Ting Guo, Fangyang Liu, Zhuangzhi Wu, Dezhi Wang
Summary: This work successfully synthesized a high-performing S-enriched MoS2 catalyst for electrocatalytic nitrogen reduction reaction (NRR), demonstrating high activity and selectivity. The synergistic effect of the 1T phase and bridging S22- species was shown to play a positive role in NRR performances, and DFT calculations revealed the mechanism behind the improved performance.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Pan Xia, Lele Zhao, Xi Chen, Zhihong Ye, Zhihong Zheng, Qiang He, Ignasi Sires
Summary: This study presents a modified gas-diffusion electrode (GDE) for highly efficient and stable H2O2 electrosynthesis by using trace polymethylhydrosiloxane (PMHS). DFT calculations provide an in-depth understanding of the roles of PMHS functional groups.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Kwangchol Ri, Songsik Pak, Dunyu Sun, Qiang Zhong, Shaogui Yang, Songil Sin, Leliang Wu, Yue Sun, Hui Cao, Chunxiao Han, Chenmin Xu, Yazi Liu, Huan He, Shiyin Li, Cheng Sun
Summary: Different B-doped rGO catalysts were synthesized and their 2e- oxygen reduction reaction (ORR) performance was investigated. It was found that the 2e- ORR selectivity of B-doped rGO was influenced by the B content and oxygen mass transfer conditions. The synthesized catalyst exhibited high 2e- ORR selectivity and was capable of degrading organic pollutants continuously.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Li Lv, Lin Lei, Qi-Wen Chen, Cheng-Li Yin, Huiqing Fan, Jian-Ping Zhou
Summary: Monoclinic phase La2Ti2O7 and orthorhombic phase Bi4Ti3O12 are widely used in photocatalysis due to their layered crystal structure. The electronic structures of these phases play a crucial role in their photocatalytic activity. Heat treatment in a nitrogen atmosphere introduces more oxygen vacancies into the S-scheme heterojunction, leading to enhanced NO removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Choe Earn Choong, Minhee Kim, Jun Sup Lim, Young June Hong, Geon Joon Lee, Keun Hwa Chae, In Wook Nah, Yeomin Yoon, Eun Ha Choi, Min Jang
Summary: In this study, the synergistic effect between argon-plasma-system (AP) and catalysts in promoting the production of reactive species for water remediation was investigated. By altering the oxygen vacancies concentration of CeO2/Bi2O3 catalyst, the production of hydrated electrons was stimulated for PFOA removal. The results showed that the built-in electric field in the Bi/Ce0.43 interface enhanced electron migration and eaq- generation, leading to improved PFOA removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yushan Wu, Di Xu, Yanfei Xu, Xin Tian, Mingyue Ding
Summary: Efficient synthesis of primary amines from carbonyl compounds was achieved via reductive amination using Ru@NC-Al2O3 as a catalyst, exhibiting high activity and selectivity under mild conditions.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yilan Jiang, Peifang Wang, Tingyue Chen, Keyi Gao, Yiran Xiong, Yin Lu, Dionysios D. Dionysiou, Dawei Wang
Summary: By controlling the content of Co and Ni in Co1-xNixFe2O4, the production of O-1(2) from H2O2 can be regulated. NiFe2O4, with the lowest lattice distortion degree, can efficiently produce O-1(2) as the dominant reactive oxygen species. The system also exhibits significant resistance to water matrix interference.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Jia-Cheng E. Yang, Min -Ping Zhu, Daqin Guan, Baoling Yuan, Darren Delai Sun, Chenghua Sun, Ming-Lai Fu
Summary: This study successfully modulated the electron configuration and spin state of millimetric metal catalysts by adjusting the support curvature radius. The electronic structure-oriented spin catalysis was found to affect the degradation of pollutants, providing new insights for the design and production of highly active, reusable, and stable catalysts.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Tao Zhong, Su Tang, Wenbin Huang, Wei Liu, Huinan Zhao, Lingling Hu, Shuanghong Tian, Chun He
Summary: In this study, a highly efficient photocatalyst for the elimination of CH3SH was developed by engineering different crystal facets and coupling them with PHI. Cu (111)/PHI exhibited the highest elimination efficiency and showed good stability and reusability. The enhanced surface electron pump effect and effective adsorption mechanisms were revealed through comprehensive characterizations and DFT calculations.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Feifei Yang, Tianyu Zhang, Jiankang Zhao, Wei Zhou, Nicole J. Libretto, Jeffrey T. Miller
Summary: A Ni3Sn intermetallic nano particle was found to have geometrically isolated Ni sites that could selectively cleave C-O bonds in biomass derivatives. This nano particle showed high activity and selectivity towards 2-methylfuran, unlike Ni nanoparticles that produced other unwanted products derived from the aromatic rings.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Lulu Qiao, Di Liu, Anquan Zhu, Jinxian Feng, Pengfei Zhou, Chunfa Liu, Kar Wei Ng, Hui Pan
Summary: This study reveals that surface evolution plays a crucial role in enhancing the electrocatalytic performance of transition metal oxides for electrochemical nitrate reduction reaction (e-NO3RR). Incorporating nickel into Co3O4 can promote surface reconstruction and improve the adsorption of intermediates and reduce energy barriers, leading to enhanced catalytic performance. The reconstructed cobalt-nickel hydroxides (CoyNi1_y(OH)2) on the catalyst's surface serve as the active phase.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Xinyu Song, Yang Shi, Zelin Wu, Bingkun Huang, Xinhao Wang, Heng Zhang, Peng Zhou, Wen Liu, Zhicheng Pan, Zhaokun Xiong, Bo Lai
Summary: This study explores the discriminative activities and mechanisms for activation of O-O bond in peroxy compounds via single-atom catalysts (SACs) with higher coordination numbers (M-N5). The atomic catalyst (Fe-SAC) with Fe-N5 as the active center was constructed, effectively activating peroxymonosulfate (PMS), peroxydisulfate (PDS), and hydrogen peroxide (H2O2). The study demonstrates the degradation efficiencies of acyclovir are related to the O-O bond length in different peroxy compounds, and reveals the discriminative mechanisms for activation of O-O bond in different Fenton-like systems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Yangzhuo He, Hong Qin, Ziwei Wang, Han Wang, Yuan Zhu, Chengyun Zhou, Ying Zeng, Yicheng Li, Piao Xu, Guangming Zeng
Summary: A dual-metal-organic framework (MOF) assisted strategy was proposed to construct a magnetic Fe-Mn oxycarbide anchored on N-doped carbon for peroxymonosulfate (PMS) activation. The FeMn@NC-800 catalyst exhibited superior activity with almost 100% degradation of sulfamethazine (SMZ) in 30 minutes. The study provided insights for the rational design of high-performance heterogeneous catalysts and proposed a novel nonradical-based catalytic oxidation for environmental cleaning.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
