Article
Environmental Sciences
Kacper Szymanski, Sylwia Mozia, Andre Ayral, Stephan Brosillon, Julie Mendret
Summary: The investigations on the removal of ibuprofen in a hybrid system coupling ozonation and nanofiltration with functionalized catalytic ceramic membrane are presented. Positive influence of catalytic ozonation on ibuprofen decomposition was observed. The application of catalytic nanofiltration membrane led to a higher ibuprofen removal rate compared to the pristine membrane, and the addition of inorganic salts did not affect the removal efficiency. Three IBU by-products were detected during the treatment process, but after 2 hours of catalytic nanofiltration, the treated product was found to be non-toxic.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Eva Roubeau Dumont, Arnaud Elger, Celine Azema, Hiram Castillo Michel, Suzy Surble, Camille Larue
Summary: The study found that despite similar internal Cu concentrations, Cu salt was more toxic to the aquatic plant Myriophyllum spicatum compared to CuO-NPs. After 10 days, the biomacromolecule composition converged between 70 mg/L CuO-NPs and Cu salt treatments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Pengwei Yan, Zhonglin Chen, Shuyu Wang, Yanchi Zhou, Li Li, Lei Yuan, Jimin Shen, Qianqian Jin, Xiaoxiao Zhang, Jing Kang
Summary: Catalytic ozonation with alpha-Fe0.9Mn0.1OOH as the catalyst can significantly enhance the degradation of Iohexol, promoting the removal and mineralization of dissolved organic carbon in water. Additionally, higher concentrations of Iohexol have adverse effects on the survival, hatching, and movement behavior of zebrafish embryos and larvae.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Review
Chemistry, Physical
Bert Boekaerts, Bert F. Sels
Summary: Ketonization of biomass carboxylic acids is a potential upgrading strategy for renewable fuels and chemicals. Metal oxide and zeolite catalysts, along with substrate properties, play crucial roles in catalytic performance. Further research is needed to integrate ketonization into future biorefineries.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Review
Biochemistry & Molecular Biology
Keyvan Pedrood, Saeed Bahadorikhalili, Vahid Lotfi, Bagher Larijani, Mohammad Mahdavi
Summary: This review provides a comprehensive summary of amide bond formation utilizing different methods with carboxylic acid substrates, highlighting the significance of carboxamides in organic and medicinal chemistry, as well as their role in synthesizing bioactive products with anticancer, antifungal, and antibacterial properties. The data presented categorizes the methods based on reagents used and includes catalytic amidation of carboxylic acids, non-catalytic amidation, and transamidation.
MOLECULAR DIVERSITY
(2022)
Article
Chemistry, Applied
Matthew W. Halloran, Caitlin Hudecek, Michael D. Burkart
Summary: This article describes a concise methodology for synthesizing acid hydrazides from carboxylic acids via a continuous flow process, achieving yields ranging from 65 to 91%. The method is applicable to a variety of mono- and diacids, including aliphatic, aromatic, and heteroaromatic functionalities, and demonstrates good scalability.
ORGANIC PROCESS RESEARCH & DEVELOPMENT
(2023)
Article
Chemistry, Multidisciplinary
Ruqaya Buhaibeh, Tiphaine Richard, Regis M. Gauvin, Mathieu Sauthier, Clement Dumont
Summary: Hydroxyl groups of industrial grade lignins are esterified using palladium-catalyzed hydroesterification reactions with CO and olefins, fatty esters or 1,3-butadiene. This efficient and salt-free reaction allows the incorporation of aliphatic chains into lignin through ester linkage. The modified lignins with introduced aliphatic chains exhibit altered glass transition temperatures, dependent on the substitution degree of hydroxyl groups and the nature of the introduced chains. Additionally, this catalysis enables the introduction of new reactive functionalities, such as esters or unsaturations, from abundant and/or biobased reactants.
Article
Engineering, Environmental
Yuting Yuan, Shikha Garg, Jinxing Ma, T. David Waite
Summary: In this study, copper aluminum layered hydroxides and copper oxide were used as catalysts for heterogeneous catalytic ozonation, targeting the removal of oxalate and formate contaminants. The role of the catalyst in contaminant removal was elucidated, with Cu-Al LDHs facilitating slow decay of O-3 to form surface hydroxyl radicals, while CuO rapidly transforms O-3 into surface-located hydroxyl radicals and/or other oxidants. Futile consumption of surface-located oxidants via interaction with the catalyst surface was minimal for Cu-Al LDHs, but becomes significant with higher CuO dosages.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Huifen Yin, Jing Liu, HanLu Shi, Lei Sun, Xiangjuan Yuan, Dongsheng Xia
Summary: A series of Ag2CO3 doping g-C3N4 composites were synthesized by a precipitation method, and the effects of hydrothermal temperature on their structure and performance were investigated. The decoration of Ag2CO3 provided more active sites, improving the catalytic ozonation performance. The AgCN0.4-10 0 composite showed the best performance and good reusability.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Chemistry, Applied
N. Inchaurrondo, C. di Luca, G. Zerjav, J. M. Grau, A. Pintar, P. Haure
Summary: The catalytic ozonation of Orange II using sulfuric acid modified aluminosilicate Montanit300 (MS) and hydrochloric acid modified Montanit300 (MH) showed high activity, with MH exhibiting better catalytic performance. The increased activity of MS and M under acidic conditions was attributed to manganese leaching. Additionally, MH displayed greater hydrophobicity, allowing for mild activity even under neutral conditions.
Review
Chemistry, Physical
Nilanjana Majumdar
Summary: Catalytic asymmetric transformation is a powerful strategy for synthesizing diverse nonracemic molecular entities. Carboxylic acids have been explored as building blocks in this area, and significant advancements have been made in the last three decades. They can act as both C- and O-nucleophiles, as well as electrophiles, in asymmetric reactions under catalytic conditions.
Article
Chemistry, Multidisciplinary
Mathias Schelwies, Rocco Paciello, Ralf Pelzer, Wolfgang Siegel, Michael Breuer
Summary: A direct carbonylation of allylic alcohols has been achieved for the first time with high catalyst activity at low CO pressure. The activation of the substrate by catalytic amounts of carboxylic anhydride, constantly regenerated with CO, plays a key role in the reaction. The identified reaction conditions are transferable to other substrates, opening up new possibilities in synthesis.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Engineering, Environmental
A. Araujo, O. S. G. P. Soares, C. A. Orge, A. G. Goncalves, E. Rombi, M. G. Cutrufello, A. M. Fonseca, M. F. R. Pereira, I. C. Neves
Summary: The catalytic ozonation of salicylic acid using zeolite-based catalysts showed improved degradation and mineralization compared to parent zeolites, with different zeolite structures performing differently. The reutilization runs demonstrated the stability of the zeolite-based catalysts.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Chemical
Tongdong Shen, Huijie Bao, Wentao Su, Yan Jiang, Shaoping Tong
Summary: Transition metal oxides and transition metal containing oxides have been extensively researched in heterogeneous catalytic ozonation for water treatment. The catalytic mechanism for typical transition metal oxide - manganese oxide (MnO2) in catalytic ozonation remains unclear. The study found that electron transfer reaction occurs in manganese containing oxides catalytic ozonation when ozone is adsorbed on protonated surface hydroxyl groups of acid sites, but not in magnesium manganese oxides (MgMnxOy). The protonation ability of hydroxyl groups on acid sites and electron transfer ability of acid sites are positively related to Mg content in MgMnxOy.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Hua Chen, Cunxia Fang, Xingmin Gao, Guanyun Jiang, Xiaoning Wang, Sheng-Peng Sun, Winston Duo Wu, Zhangxiong Wu
Summary: Novel copper oxide (CuOx) catalysts supported on defect-rich mesoporous alumina microspheres exhibited high stability, small size, tunable valency, and remarkable catalytic performance in catalyzing the ozonation of phenol wastewaters. The unique structure and defective nature of the catalysts along with the cooperative role of surface hydroxyl groups and Cu+/Cu-2(+) redox couples contribute to their superior catalytic activity. The study proposed a plausible mechanism for the catalytic O-3 decomposition in the presence of the CuOx catalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Laura Rodriguez-Saez, Sotiris I. Patsios, Jorge Senan-Salinas, Junkal Landaburu-Aguirre, Serena Molina, Eloy Garcia-Calvo
Summary: This study explores the feasibility of using recycled ultrafiltration membranes as submerged flat-sheet membranes in an aerobic membrane bioreactor for the first time. The results show that the recycled ultrafiltration membranes perform similarly to commercial membranes in terms of rejection performance, fouling behavior, and permeate quality. The recycled membranes exhibit higher fouling resistance and have the potential to be competitively used in industrial applications, as indicated by a preliminary economic assessment.
Article
Engineering, Environmental
Jorge Senan-Salinas, Junkal Landaburu-Aguirre, Jorge Contreras-Martinez, Eloy Garcia-Calvo
Summary: Recycling end-of-life RO membrane modules into FO membranes is an innovative approach to integrate membrane science into Circular Economy. This study assessed the environmental potential of this strategy and compared it with commercial TFC and CTA membranes. The results showed the interest in most impact categories and identified solvent losses as a source of error.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Environmental Sciences
Carmen Sorasan, Carlos Edo, Miguel Gonzalez-Pleiter, Francisca Fernandez-Pinas, Francisco Leganes, Antonio Rodriguez, Roberto Rosal
Summary: The generation of small fragments from the environmental ageing of microplastics (MPs) is still a poorly known process. This study investigated the fragmentation of MPs obtained from marine debris after exposure to accelerated ageing. The results showed the generation of a high number of small MP particles, which suggests a severe underestimation of the environmental presence of small MPs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Irene Verdu, Georgiana Amariei, Patricia Plaza-Bolanos, Ana Aguera, Francisco Leganes, Roberto Rosal, Francisca Fernandez-Pinas
Summary: This study found that polystyrene nanoplastics sorbed micropollutants in wastewater, reducing their bioavailability and thus decreasing the toxicological effects on biota. The toxic effects on organisms varied under single exposure, wastewater exposure, and combined exposure of nanoplastics with wastewater.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Environmental Sciences
M. Pariente, Y. Segura, S. Alvarez-Torrellas, J. A. Casas, Z. M. de Pedro, E. Diaz, J. Garcia, M. J. Lopez-Munoz, J. Marugan, A. F. Mohedano, R. Molina, M. Munoz, C. Pablos, J. A. Perdigon-Melon, A. L. Petre, J. J. Rodriguez, M. Tobajas, F. Martinez
Summary: This review assesses different technologies for the on-site treatment of hospital wastewater from 2014 to 2020, focusing on the removal of pharmaceutical compounds. Antibiotics and psychiatric drugs were the main PhCs detected, with MBR and ozonation technologies showing promising results, but requiring further optimization for full-scale implementation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Engineering, Environmental
Sergio Martinez-Campos, Miguel Gonzalez-Pleiter, Andreu Rico, Theresa Schell, Marco Vighi, Francisca Fernandez-Pinas, Roberto Rosal, Francisco Leganes
Summary: This study investigated the interaction between the plastisphere and living organisms in freshwater ecosystems over a one-year period. It found that species diversity was influenced by the site, and analyzed the core microbiomes in plastic items at different time points. Additionally, the study revealed a positive correlation between antibiotic concentration in river water and abundance of antibiotic resistance genes on plastics.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Irene Verdu, Georgiana Amariei, Cristina Rueda-Varela, Miguel Gonzalez-Pleiter, Francisco Leganes, Roberto Rosal, Francisca Fernandez-Pinas
Summary: This study aimed to evaluate the influence of biofilm on the role of microplastics as vectors of pollutants and their impact on Daphnia magna. The results indicated that biofilm had an effect on the bioadsorption of microplastics, which may affect their potential toxicity towards aquatic organisms. Therefore, future studies should include characterization of biofilms growing on plastic to more accurately assess the impact of plastics in the environment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Pharmacology & Pharmacy
Ana Arenas-Vivo, Vanessa Celis Arias, Georgiana Amariei, Roberto Rosal, Isabel Izquierdo-Barba, Tania Hidalgo, Maria Vallet-Regi, Hiram I. Beltran, Sandra Loera-Serna, Patricia Horcajada
Summary: Surface microbial colonization and biofilm formation are major problems causing human infectious diseases, and traditional treatments are often ineffective in eliminating biofilms. This study presents a silver-based metal-organic framework (AgBDC) that has antifouling properties and can prevent bacterial adhesion and surface contamination.
Article
Chemistry, Applied
Laura Valenzuela, Marta Pedrosa, Ana Bahamonde, Roberto Rosal, Andre Torres-Pinto, Claudia G. Silva, Joaquim L. Faria, Adrian M. T. Silva
Summary: In this study, metal-free carbon nitride-based membranes were successfully prepared by incorporating bulk or exfoliated graphitic carbon nitride (g-C3N4) photocatalysts into a polyvinylidene fluoride (PVDF) matrix. Supported membranes were also made by immobilizing these photocatalysts on a polytetrafluoroethylene (PTFE) substrate. The membranes exhibited efficient photocatalytic filtration performance for venlafaxine (VFX) degradation under visible light irradiation, with conversions above 95% and negligible VFX concentration in the effluent after 5 hours of operation. Furthermore, the membranes showed resistance to fouling and maintained a constant permeate flux throughout continuous operation.
Article
Environmental Sciences
Irene Verdu, Miguel Gonzalez-Pleiter, Francisco Leganes, Francisca Fernandez-Pinas, Roberto Rosal
Summary: Farmlands act as sources of both aged plastics and pesticides, which can impact the surrounding environment. This study examined the potential role of agricultural plastics in carrying a mixture of herbicides and their effects on freshwater microalgae. The results revealed that aged plastics had an increased capacity to retain and release herbicides, leading to adverse effects on the microalgae including oxidative stress and metabolic dysfunction. The toxicological interactions of the herbicide mixture varied depending on the effect level, showing both antagonistic and synergistic effects. This study confirms that aging enhances the vector behavior of agricultural plastics for toxic chemicals to biota.
Article
Engineering, Environmental
Miguel Tamayo-Belda, Ana Villanueva Perez-Olivares, Gerardo Pulido-Reyes, Keila Martin-Betancor, Miguel Gonzalez-Pleiter, Francisco Leganes, Denise M. Mitrano, Roberto Rosal, Francisca Fernandez-Pinasa
Summary: In this study, palladium-doped polystyrene NPLs (PS-NPLs) with irregular surface morphology were used to assess their toxicity on cyanobacterium, green algae, and crustacean. The EC50 concentration for D. magna was 49 mg NPLs/L, while for C. reinhardtii it was 248 mg NPLs/L. PS-NPLs induced reactive oxygen species overproduction, membrane damage, and metabolic alterations in a dose-dependent manner. The distribution of PS-NPLs under static and stirring conditions was studied to understand their environmental fate.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Chemical
Chizoba I. Ezugwu, Srabanti Ghosh, Susmita Bera, Marisol Faraldos, Marta E. G. Mosquera, Roberto Rosal
Summary: A series of robust octahedral bimetallic metal-organic frameworks were synthesized by solvothermal de novo reaction using 2-aminoterephthalic acid and mixed metal salts. The bimetallic Zr/M-ATA materials showed higher photocatalytic performance compared to the monometallic Zr-ATA material. Among them, Zr/Cu-ATA exhibited excellent performance for CO2 reduction and hydrogen generation under visible light irradiation, attributed to optimized bandgap and abundant active sites.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Virginia Galvez-Blanca, Carlos Edo, Miguel Gonzalez-Pleiter, Marina Albentosa, Javier Bayo, Ricardo Beiras, Francisca Fernandez-Pinas, Jesus Gago, May Gomez, Rosario Gonzalez-Cascon, Javier Hernandez-Borges, Junkal Landaburu-Aguirre, Ico Martinez, Soledad Muniategui-Lorenzo, Cristina Romera-Castillo, Roberto Rosal
Summary: The aim of this study was to investigate the occurrence of microplastics (MPs) in drinking water in Spain by comparing tap water from different locations. Tap water from 24 points in 8 different locations in Spain was sampled and analyzed. The results showed that the concentration of MPs in the drinking water samples was relatively low and would probably pose a negligible risk to human health.
Article
Environmental Sciences
Miguel Tamayo-Belda, Catia Venancio, Francisca Fernandez-Pinas, Roberto Rosal, Isabel Lopes, Miguel Oliveira
Summary: This study investigated the toxicity of environmentally realistic nanoplastics (NPLs) derived from mechanically broken down polymers on two freshwater secondary consumers. The results showed harmful effects of NPLs on the tested organisms, especially polypropylene, low-density polyethylene, and polylactic acid.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Roberta R. M. Silva, Laura Valenzuela, Roberto Rosal, Luis A. M. Ruotolo, Francisco G. E. Nogueira, Ana Bahamonde
Summary: In this study, a Co3O4 coating was applied to photoactivate peroxymonosulfate (PMS) for the degradation of imidacloprid (IMD) under continuous-flow conditions. The synergistic activation of PMS by Co2+ and Co3+ species in the Co3O4 catalyst and the UV component of solar irradiation were the key factors contributing to the outstanding performance of the Co3O4/PMS/solar irradiation process. The combination of solar light, Co3O4, and PMS showed great potential for treating effluents containing harmful pollutants.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(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)