Article
Chemistry, Multidisciplinary
Maria Leonor Matias, Ana Pimentel, Ana S. Reis-Machado, Joana Rodrigues, Jonas Deuermeier, Elvira Fortunato, Rodrigo Martins, Daniela Nunes
Summary: Polyethylene glycol-modified titanium dioxide nanopowders were successfully prepared using a fast solvothermal method under microwave irradiation. The addition of different molar ratios of iron precursor was found to affect the photocatalytic performance of the produced materials. The characterization results showed that Fe-TiO2 nanostructures exhibited improved photocatalytic activity and could be promising for the removal of organic dyes from wastewater.
Article
Environmental Sciences
Sonali Puri, Ina Thakur, Anoop Verma, Sanghamitra Barman
Summary: In this study, a novel Fe-TiO2 composite was successfully used for the degradation of paracetamol, combining photocatalysis and photo-Fenton in situ. After optimizing various parameters, a reduction of 96.6% in PCM was observed.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
Tanveer A. Gadhi, Imtiaz Ali Bhurt, Tayyab A. Qureshi, Imran Ali, Anira Latif, Rasool Bux Mahar, Najeebullah Channa, Barbara Bonelli
Summary: In this study, 3D-structured clay filters were prepared and coated with iron-doped titanium dioxide (Fe-TiO2) using 3D printing and sol-gel soaking and calcination techniques. The coated filters showed uniform coatings of round-shaped Fe-TiO2 on the tiny pore of the clay filter, and had an optical energy band gap of around 2.8 eV. The Fe-TiO2-coated clay filters exhibited high denitrification efficiency and photocatalytic degradation performance for indigo carmine dye.
Article
Materials Science, Multidisciplinary
Zhaopeng Zhang, Xian Li, Dayong Guan, Yingchao Gao, Jiang Wu, Qizhen Liu, Ping He, Yongfeng Qi, Tong Li, Shuang Liang
Summary: Fe-doped TiO2 hollow microspheres exhibit enhanced photocatalytic performance for the removal of Hg-0 under UV light irradiation. The incorporation of iron reduces the energy band gap of TiO2 and extends the absorption boundary, leading to improved photocatalytic efficiency. However, an excessive amount of Fe3+ can hinder photocatalytic activity by occupying electron and hole capture sites.
Review
Chemistry, Multidisciplinary
Zijun Yong, Tianyi Ma
Summary: This article provides a systematic overview of the advances and challenges of covalent organic frameworks (COFs) in photocatalytic H2O2 production and offers perspectives and outlooks for future developments in this field.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Analytical
Xiaoxia Jian, Jing Xu, Yiming Wang, Chenxi Zhao, Zhida Gao, Yan-Yan Song
Summary: The study evaluated a high-performance solid-state ECL H2O2 sensor based on MIL-88B(Fe) nanocrystal-anchored Ti microwires, showing ultrahigh sensitivity, long-term stability, and excellent photocatalytic activity in the visible-light range at the single-cell level. The electrode demonstrated synergistic effects between the TiO2 luminophore and the peroxidase-like activity of MIL-88B(Fe), making it suitable for cytosensing applications.
ANALYTICAL CHEMISTRY
(2021)
Article
Engineering, Chemical
Jie Zhao, Yunning Chen, Renquan Guan, Xueying Cheng, Zhengkai Wu, Nana Zhao, Qingkun Shang, Yingnan Sun
Summary: In this study, the authors successfully prepared two composite photocatalysts, TiO2@PDI-NapSO3H and Fe-TiO2@PDI-NapSO3H, by bonding water-soluble PDI derivatives with TiO2 or iron-doped TiO2. These photocatalysts showed improved performance in degrading phenol and diclofenac sodium (DCF) under visible light. The addition of PDI-NapSO3H enhanced the optical absorption properties of TiO2, while the doping of Fe in TiO2 prevented the recombination of photogenerated carriers. The Fe-TiO2@PDI-NapSO3H exhibited higher photocatalytic activity compared to TiO2@PDI-NapSO3H, with almost 99% degradation of phenol or DCF achieved within 90 or 120 minutes, respectively. The authors also discussed the effects of energy band structure and photogenerated carrier separation efficiency on the photocatalytic performance of Fe-TiO2@PDI-NapSO3H through various analyses. They proposed possible degradation pathways of DCF and explained the reduction of environmental toxicity after photocatalytic degradation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Diego Alvarez-Bustos, Felipe Sanchez-Minero, Victor Santes, Issis Claudette Romero-Ibarra, Jose Antonio de los Reyes Heredia, Reyna Rios-Escobedo, Francisco Tzompantzi-Morales, Carlos Eduardo Santolalla-Vargas
Summary: The study evaluated the photocatalytic activity of FeS-2Cl/TiO2 catalyst on visible-light degradation of phenol, showing significantly improved degradation compared to unmodified TiO2.
Article
Biochemistry & Molecular Biology
Ximena Jaramillo-Fierro, John Ramon, Eduardo Valarezo
Summary: This study investigates the removal of cyanide species from aqueous solutions using the ZnTiO3/TiO2/H2O2/UVB system. The experimental results show that this system is effective in removing cyanide and has good detoxification effect.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Environmental Sciences
Yunsong Zheng, Wenjing Xie, Songhu Yuan
Summary: This study demonstrates the use of hydroxylamine to promote the Fe(III)/Fe(II) cycle and accelerate the oxidation reaction of solid Fe(II), leading to increased efficiency in the in situ remediation of contaminants. Hydroxylamine effectively decomposes H2O2 to produce hydroxyl radicals (center dot OH), which enhances the degradation of phenol during soil oxidation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Xueqin Wang, Ying Liu, Helong Xu, Man Dai, Peng Qiao, Wenyi Wang, Yanxiu Liu, Hua Song
Summary: Surface-decorated three-dimensional dendritic fibrous nanosilica (DFNS)/TiO2 materials were synthesized and studied for their potential applications in degrading organic pollutants. The DFNS/TiO2 catalysts exhibited unique fibrous morphologies, high specific surface areas, and excellent catalytic properties, with a first-order degradation rate constant of 0.0229 min(-1).
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Ceramics
E. Burak Ertus, Cekdar Vakifahmetoglu, Abdullah Oztuerk
Summary: The research found that porous glass embedded with titanium dioxide has a higher efficiency in methylene blue removal, mainly due to its high specific surface area and dispersion of nano-sized anatase TiO2 crystallites.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Yicheng Xing, Zheng Yao, Wenyuan Li, Wenting Wu, Xiaoqing Lu, Jun Tian, Zhongtao Li, Han Hu, Mingbo Wu
Summary: By fabricating heterogeneous Fenton-type Fe-based catalysts containing Fe-N-x sites and Fe/Fe3C nanoparticles, the competition between the efficient utilization of H2O2 and undesired O-2 generation was studied. With finely tuned active sites, a high conversion rate for the selective oxidation of methane and excellent product selectivity were achieved, while O-2 generation was significantly suppressed.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Energy & Fuels
Ling-Wei Wei, Kuen-Song Lin, H. Paul Wang
Summary: This study demonstrates the effective conversion of H2O(l)-to-H2O2(aq) and -H-2(g) using the novel Pd-TiO2-delta/TiO2 photocatalysts through photocatalytic reactions. The results show that this photocatalyst can efficiently generate green energy under solar energy.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Zahra Shayegan, Fariborz Haghighat, Chang-Seo Lee
Summary: The study improved the degradation efficiency of TiO2 photocatalyst under visible and UV light irradiations towards VOCs through hydrothermal treatment and surface fluorination techniques.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Materials Science, Ceramics
S. Lopez-Esteban, B. Cabal, A. Borrell, J. F. Bartolome, A. Fernandez, M. Faraldos, A. Bahamonde, J. S. Moya, C. Pecharroman
Summary: This study investigates the properties of TiO2-anatase nanoparticles attached by a low-melting point inorganic glass. The composition does not contain toxic metals and shows excellent wettability on ceramic nanoparticles. The mechanical strength of the composites is remarkably enhanced by adding a small amount of glass, and the self-cleaning properties of TiO2-anatase are not affected by the presence of the glass.
CERAMICS INTERNATIONAL
(2021)
Article
Environmental Sciences
Isaac Sanchez-Montes, Irene Salmeron, Jose M. Aquino, Maria Inmaculada Polo-Lopez, Sixto Malato, Isabel Oller
Summary: The study evaluated the effectiveness of a solar-driven free chlorine advanced oxidation process for removing organic microcontaminants and bacteria from natural water. Results showed high removal efficiency both at laboratory and pilot-scale, making the process a promising method for water treatment.
Article
Engineering, Chemical
Viviana Jehova Gonzalez, Ester Vazquez, Beatriz Villajos, Alvaro Tolosana-Moranchel, Carlos Duran-Valle, Marisol Faraldos, Ana Bahamonde
Summary: Titania graphene hybrid nanocomposites are synthesized and utilized as efficient nano-catalysts for the photo catalytic degradation of complex mixtures of pesticides. The presence of a small amount of few layer graphene and the mechanochemical activation significantly enhance the photocatalytic activity of TiO2 nanoparticles. The TiO2-FLG-0.5% hybrid nanocomposite shows the best photocatalytic performance with complete pesticide removal and about 82% total organic carbon conversion achieved within the irradiation time.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Laura Valenzuela, Georgiana Amariei, Chizoba I. Ezugwu, Marisol Faraldos, Ana Bahamonde, Marta E. G. Mosquera, Roberto Rosal
Summary: This study investigated the application of two synthesized zirconium-based Metal-Organic Frameworks (Zr-MOFs) in photoelectrocatalytic disinfection processes, and found that the photoelectrocatalytic configuration under 365 nm UVA irradiation had a higher disinfection efficiency. The Zr-MOFs exhibited high disinfection capacity under solar irradiation, which was attributed to the transfer of photoexcited electrons from ligand to cluster by high energy photons.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Leonardo Fanton, Frida Loria, Mario Amores, M. Ruth Pazos, Cristina Adan, Rafael A. Garcia-Munoz, Javier Marugan
Summary: This study investigated the proliferation of osteoblast precursor cells on the surfaces of TiO2 nanowires (TNWs) grown by electrochemical anodization. The results showed lower cell proliferation rates on TNW surfaces compared to control samples without significant differences in cell survival. The relatively thin diameter and high density of TNWs may have affected cell proliferation.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Physical
Dennis Deemter, Fabricio Eduardo Bortot Coelho, Isabel Oller, Sixto Malato, Ana M. Amat
Summary: This study assessed the combination of a photocatalytic membrane and solar photo-Fenton treatment for the filtration and treatment of urban wastewater. The results showed that the photocatalytic membrane significantly reduces turbidity and improves degradation efficiency.
Article
Engineering, Chemical
Mads Koustrup Jorgensen, Dennis Deemter, Lars Wagner Staede, Luna Gade Sorensen, Laerke Norgaard Madsen, Isabel Oller, Sixto Malato, Thorbjorn Terndrup Nielsen, Vittorio Boffa
Summary: This paper proposes a solution to enhance the retention of micropollutants in nanofiltration by adding cyclodextrins (CDs) for complexation. The results show that the addition of CDs significantly improves the rejection rates of ibuprofen, bisphenol A, and phenol compared to filtration without CDs. Furthermore, the complexation of CDs allows for filtration with ultrafiltration (UF) membranes, reducing operational expenses.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Article
Thermodynamics
A. Ruiz-Aguirre, J. G. Villachica-Llamosas, M. Polo-Lopez, A. Cabrera-Reina, G. Colon, J. Peral, S. Malato
Summary: The study successfully explored the pilot-scale combination of H-2 generation with simultaneous water disinfection or decontamination using a TiO2-CuO mixture. By optimizing treatment conditions, the research achieved a significant reduction in the concentration of waterborne pathogens through a synergistic effect of anoxic conditions, TiO2:CuO, and solar radiation.
Article
Engineering, Environmental
Alejandro Cabrera-Reina, Marina Aliste, Maria Inmaculada Polo-Lopez, Sixto Malato, Isabel Oller
Summary: This study focuses on understanding the interactions between a complex water matrix and the process of removing a mixture of microcontaminants (acetamiprid, carbamazepine, and caffeine) using the solar/Fe3+-EDDS/persulfate process. The effects of sulfates, nitrates, bicarbonates, and chlorides on the process were assessed in different synthetic and actual water samples. The results showed that bicarbonates and chlorides have a significant impact on the efficiency of microcontaminant removal in complex water matrices, while dissolved organic matter had a negative effect on removal efficiency depending on its concentration and composition.
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
Cristina Adan, Cristina Pablos, Patricia Misis, Sandra Pascua, Javier Marugan
Summary: Immobilised TiO2 nanotube (TiO2-NT) electrodes were grown via electrochemical anodisation in an aqueous solution containing fluoride ions at different voltages. The photoactivity of the TiO2-NT electrodes was found to increase with the length of the nanotubes and the anodising potential. The TiO2-NT30V electrode generated free chlorine with enough concentration to achieve high levels of inactivation of bacteria and fungi, suggesting that it could be a promising alternative for in situ chlorine-based disinfection.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Andrea Basso Peressut, Cinzia Cristiani, Giovanni Dotelli, Anna Dotti, Saverio Latorrata, Ana Bahamonde, Antonio Gasco, Daphne Hermosilla, Riccardo Balzarotti
Summary: This study presents preliminary results on the development of composite self-assembling membranes combining reduced graphene oxide (rGO) and commercial Degussa P25 titanium dioxide (TiO2). The purpose is to demonstrate their capability to treat wastewater containing both inorganic and organic pollutants by leveraging rGO's metal ion capturing ability and TiO2's organic substance degradation ability. The study also explores the potential photocatalytic properties of waste-derived TiO2 (TIO) as a replacement for commercial TiO2, supporting a circular economy approach. The composite membranes were prepared, characterized, and tested for metal adsorption and organic pesticide degradation, showing promising results.
Article
Green & Sustainable Science & Technology
Gulnara Maniakova, Maria Inmaculada Polo Lopez, Isabel Oller, Sixto Malato, Luigi Rizzo
Summary: Solar driven advanced oxidation processes (S-AOPs) have been successfully studied as tertiary and quaternary treatment of urban wastewater. However, their application has been hindered by the lack of comparison data with consolidated technologies and evaluation of environmental impact. This study compared the environmental impact of a new S-AOP called sequential treatment (ST) with sunlight/H2O2 and solar photo-Fenton (SPF) to pilot scale ozonation (O-3) treatment through Life Cycle Assessment (LCA). The results showed that ST had a better overall environmental performance compared to O-3, making it a more sustainable solution for small urban wastewater treatment plants.
JOURNAL OF CLEANER PRODUCTION
(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)