Article
Engineering, Environmental
Cintia Andreia Alves Pereira, Mariana Riboli Nava, Jilvana Barbara Walter, Claudio Eduardo Scherer, Amanda Dominique Kupfer Dalfovo, Marcio Barreto-Rodrigues
Summary: The study prepared calcium alginate beads incorporated with nZVI and applied them in a catalytic ozonation system for dye treatment, showing high process efficiency and potential application in treating petroleum effluents.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Jose A. Lara-Ramos, Jennyfer Diaz-Angulo, F. Machuca-Martinez
Summary: A novel approach based on high turbulence zones was investigated to minimize mass transfer limitation in ozonation and catalytic ozonation processes. Using a modified flotation cell (MFC) as a reactor, the study achieved complete caffeine degradation and mineralization under the best operating condition, showing enhanced ozone mass transfer coefficient by increasing the stirring rate in MCF. The study also identified hydroxyl radical as a key species for caffeine degradation and mineralization in catalytic ozonation.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Jasiel A. Ruiz, Julia Liliana Rodriguez, Tatiana Poznyak, Isaac Chairez, Jaime Duenas
Summary: Diethyl phthalate (DEP) is a pollutant found in soil due to its use in the plastic industry. Ozonation with catalysts like goethite can effectively remove DEP from soil. Calcined soil enhances total organic carbon removal during ozonation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Xiaozi Lin, Xufang Li, Jiaoran Fei, Luming Ma, Yuanxing Huang
Summary: Cr-modified iron shavings (CrMI) showed better stability and catalytic performance compared to H2O2-modified iron shavings (HMI). With reduced iron leaching and surface loss, CrMI also led to a slightly higher mineralization rate of organic pollutants during long-term ozonation process.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Water Resources
Maha K. Mohsin, Ahmed A. Mohammed
Summary: Catalytic ozonation using zinc oxide nanoparticles was effective in degrading oxy-tetracycline in aqueous solution, with ozone dosage and pH level playing significant roles in the process.
APPLIED WATER SCIENCE
(2021)
Article
Engineering, Chemical
Dongyao Yue, Shaopo Wang, Jingjie Yu, Ruifei Zhou, Mu Rong, Chang Jing, Wang Zhe
Summary: The role of surface hydroxyl on a catalyst in the decomposition of O3 during heterogeneous catalytic ozonation is important but inadequately studied. This study used hydroxyl-rich goethite (a-FeOOH) as a catalyst for the ozonation of ibuprofen (IBP) and successfully adjusted the state of the hydroxyl groups on the catalyst surface through heating and changing pH. The results showed that a-FeOOH effectively degraded and mineralized IBP during ozonation, primarily promoting the decomposition of O3 into center dot OH. The study identified four types of hydroxyl groups on the catalyst surface and determined that neutral vacancy hydroxyl was the main functional hydroxyl for ozone catalysis. A proposed mechanism involves the decomposition of O3 into center dot OH on the surface hydroxyl.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Tong Ding, Wenxiao Zhao, Yuqing Sun, Shilong Li, Tianxiang Yu, Wenheng Jing
Summary: In this study, a novel 2D Fe3O4-MnO2 hollow fiber ceramic membrane with excellent separation performance and high catalytic activity was constructed. The membrane exhibited superior catalytic ozonation activity and high separation performance, making it suitable for wastewater treatment.
APPLIED SURFACE SCIENCE
(2023)
Article
Environmental Sciences
Amir Ikhlaq, Umair Yaqub Qazi, Asia Akram, Osama Shaheen Rizvi, Adeel Sultan, Rahat Javaid, Khaled A. Alawi Al-Sodani, Sami M. Ibn Shamsah
Summary: This study developed a hybrid unit combining catalytic ozonation and filtration to effectively remove contaminants in drinking water. The results showed high removal efficiency of pollutants and compliance with drinking water quality standards. The novel hybrid reactor treatment can be scaled up for future applications.
Article
Engineering, Chemical
Ye Liu, Zilong Song, Wenhua Wang, ZhenBei Wang, Yuting Zhang, Chao Liu, Yiping Wang, Ao Li, Bingbing Xu, Fei Qi
Summary: The study established the combination of membrane filtration with catalytic ozonation, developing a novel catalytic ceramic membrane for in-situ self-cleaning and micropollutants degradation. Optimized operation parameters achieved significant performance for degradation and elimination, representing a promising strategy for water treatment.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Chen Li, Zhenbei Wang, Ao Li, Zilong Song, Ruijun Ren, Kuichang Zuo, Fei Qi, Amir Ikhlaq, Oksana Ismailova
Summary: Catalytic ozonation membrane reactor (COMR) is a highly promising technology for municipal wastewater reclamation. Through the filtration of effluent organic matter (EfOM) using catalytic membranes, we evaluated the superior performance of catalytic ozonation in COMR. Filtration primarily removes protein-like fluorescence compounds, while catalytic ozonation removes humic-like materials and highly unsaturated compounds, demonstrating their complementary functions. Catalytic ozonation exhibits higher removal efficiency for medium molecular weight humic-like materials and S-containing compounds, enhancing the mineralization and reaction extent of EfOM. Additionally, it has a strong self-cleaning property and eliminates irreversible membrane fouling. Our findings provide molecular-level insights into the reaction mechanism of COMR for municipal wastewater reclamation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Chemical
Audrey Cabrol, Antoine Lejeune, Ronan Lebullenger, Audrey Denicourt-Nowicki, Alain Roucoux, Annabelle Couvert, Pierre-Francois Biard
Summary: A study successfully utilized a heterogeneous catalyst composed of zerovalent ruthenium nanoparticles loaded onto an open-cell glass foam support for catalytic ozonation to remove toluene from air. Experimental results demonstrated that high removal efficiency of toluene and ozone degradation can be achieved under suitable operating conditions.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2021)
Article
Engineering, Chemical
Madjene Farid, Assassi Mirvet, Yeddou-Mezenner Nacera
Summary: The research showed that Atenolol could be efficiently removed using immobilized ZnO in a rectangular staircase photocatalytic reactor under solar irradiation. Operational parameters such as flow rate, pH, and initial ATL concentration were found to be crucial, with OH· radicals playing a primary role in the degradation process during photocatalysis.
CHEMICAL ENGINEERING & TECHNOLOGY
(2021)
Article
Engineering, Chemical
Lianyu Jia, Yang Jin, Jun Li, Zhizhen Wei, Ming Chen, Jun Ma
Summary: In this study, a spiral microchannel reactor was used to investigate the photocatalytic degradation of OTC in a TiO2 slurry system. The results showed high degradation rate and reaction rate constant under the best experimental conditions, confirming the efficiency and stability of OTC degradation in the microreactor. The study provides guidance for efficient photocatalytic degradation of tetracycline antibiotics in slurry systems.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Engineering, Chemical
Ao Li, Ye Liu, Zhenbei Wang, Zilong Song, Yuting Zhang, Yiping Wang, Bingbing Xu, Fei Qi, Amir Ikhlaq, Jolanta Kumirska, Ewa Maria Siedlecka
Summary: A novel CuMn2O4/rGO catalytic ceramic membrane was developed for water purification, showing enhanced degradation efficiency and in-situ self-cleaning of membrane fouling. The performance of this catalytic membrane mainly depended on [ozone] and transmembrane pressure, and optimum reaction parameters were determined. The proposed COMR effectively combined membrane filtration and catalytic ozonation technology to degrade micro-organic pollutants and alleviate membrane fouling.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Amir Payan, Jafar Soltan
Summary: In this study, the performance of different treatment processes, including UV photolysis, ozonation, UV photolysis + ozonation, and vacuum ultraviolet (VUV) photolysis, for the oxidation of acetone in the presence and absence of Ag modified CeO2 photocatalysts was investigated. The results showed that the VUV treatment system exhibited the best performance, achieving more than 40% acetone conversion at room temperature. Furthermore, the addition of Ag/CeO2 photocatalysts to the VUV treatment process not only increased the acetone conversion to 76%, but also eliminated the generated ozone. The addition of Ag to CeO2 photocatalyst under VUV irradiation significantly improved the reaction selectivity and led to a total oxidation level of up to 96% for acetone degradation reactions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Zenan Wang, Xin Zheng, Yan Wang, Heng Lin, Hui Zhang
Summary: This study investigated the adsorptive removal of phenanthrene from synthetic soil washing effluent using activated carbon prepared from waste walnut shells. The effects of activated carbon dosage, Tween 80 concentration, and adsorption time on phenanthrene removal were studied using Box-Behnken statistical experiment design and response surface methodology. The results showed that the activated carbon dosage and adsorption time had a positive effect on phenanthrene removal, while the Tween 80 concentration had a negative effect.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2022)
Review
Engineering, Environmental
Wei Ren, Cheng Cheng, Penghui Shao, Xubiao Luo, Hui Zhang, Shaobin Wang, Xiaoguang Duan
Summary: This review discusses the use of persulfate-based nonradical oxidation processes (PS-NOPs) in wastewater purification, focusing on recent advances in nonradical electron-transfer regimes, including design of catalysts, in situ/operando characterization/analytics, and understanding the origins of electron-transfer mechanisms. The study found that persulfate is activated by a catalyst to form surface activated complexes, which interact directly or indirectly with target pollutants for oxidation.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
Zhihong Ye, Fei Miao, Hui Zhang
Summary: This study demonstrates for the first time the feasibility of removing COD and NH4+-N from landfill leachate using an electrochemical assisted HClO/Fe2+ process. The performance of active chlorine generation at the anode was evaluated, and the coexistence of (OH)-O-center dot and (FeO2+)-O-IV in the system was confirmed. The influence of pH, Fe2+ concentration, and current density on COD and NH4+-N removal was investigated, and the reaction mechanism was proposed. The proposed process shows promise as an alternative for treating refractory landfill leachate.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Analytical
Fuzhen Liu, Jinjin Zhao, Yanyan Ma, Zhengzhi Liu, Yin Xu, Hui Zhang
Summary: Electrochemical process coupling with Fe2+/persulfate oxidation was applied to treat soil washing effluent containing diesel and surfactant Tween 80. The platinum anode (Ti/Pt) showed higher removal of diesel compared to tantalum or ruthenium-based anodes. Lower initial pH and optimal values of electricity intensity, Fe2+ and PDS dosages favored diesel decay. The process achieved 88.6% diesel removal efficiency and 70% Tween 80 recovery.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Bingqing Wang, Cheng Cheng, Mengmeng Jin, Jia He, Hui Zhang, Wei Ren, Jiong Li, Dingsheng Wang, Yadong Li
Summary: This study investigates the site distance effect on the catalytic reactivity of single-atom catalysts. The optimized distance between copper atoms matches with the molecular size of the reactant, resulting in the most efficient catalyst for the oxidation of organic contaminants.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Environmental
Yahui Ma, Dalin Wang, Yin Xu, Heng Lin, Hui Zhang
Summary: Mn0.27FeO4.55 (MFBO) synthesized from recycled waste alkaline batteries showed higher catalytic activity for PDS activation, with a high removal efficiency for BPA. A non-radical PDS activation mechanism was proposed, providing a novel perspective for waste battery utilization and removal of recalcitrant aqueous contaminants.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Yan Xiao, Liangliang Xiong, Yin Xu, Hui Zhang
Summary: In recent years, visible light assisted advanced oxidation processes (AOPs) have gained attention in pollutant removal. This study proposes an innovative and eco-friendly system, visible light enhanced Fe3+-tris(2-aminoethyl)amine (Fe3+-NTA)/peroxydisulfate (PDS), for the removal of bisphenol A (BPA). Through ligand-to-metal charge transfer (LMCT), Fe3+-NTA can activate PDS to generate Fe2+ and remove BPA. The results demonstrate that under visible light illumination, efficient BPA removal can be achieved using the appropriate concentrations of Fe3+, NTA, and PDS.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Wei Ren, Qiming Zhang, Cheng Cheng, Fei Miao, Hui Zhang, Xubiao Luo, Shaobin Wang, Xiaoguang Duan
Summary: In this study, a 3D electrochemical system was established by coupling conventional graphite electrodes with dispersed carbon nanotubes (CNTs) to enhance the electrochemical activation of peroxydisulfate (PDS). This led to efficient oxidation of pollutants and maintenance of electrode cleanliness and activity for long-term operation.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Hanxiao Chen, Zhaoyi Han, Shiyi Cao, Yinghao Li, Xin Kang, Cheng Cheng, Xuantong Chen, Yin Xu, Hui Zhang
Summary: For scale-and performance-oriented defect engineering, a highly predigested mechanochemical paradigm was conceived to convert spent Fe-based foodstuff deoxidizers into mechanochemistry-derived catalysts. The physicochemical properties of the catalysts were characterized, and the formation of oxygen vacancies (OVs) involving the actions of mechanical energy and reductive carbon components was justified. The catalysts efficiently activated peroxymonosulfate for contaminant elimination and bacteria inactivation in water.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xuantong Chen, Zhen Guo, Juemiao Liu, Fei Wu, Cheng Cheng, Heng Lin, Wei Ren, Hui Zhang
Summary: Waste herb residue biochar (WBC) can activate peroxydisulfate (PDS) to remove different micropollutants. Surface oxidation rate constant (k(oxid)) is highly related to the electrochemical redox descriptor (phi(1/2)) in the removal process of micropollutants.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Engineering, Environmental
Yin Xu, Pan Xia, Chao Wang, Jie Cai, Haibo Li, Zhihong Ye, Hui Zhang
Summary: In the past decade, metal-organic frameworks (MOFs) have gained significant interest in various fields, especially in water purification, due to their large surface area, adjustable topologies, and high physicochemical tunability. This article provides a detailed overview of MOFs materials in heterogeneous advanced oxidation processes (AOPs) for water treatment, focusing on their activation of peroxide to generate reactive oxygen species (ROS) for organic contaminant removal. The article also summarizes the advancements in MOFs activated peroxide processes with photo-, electro-, and ultrasonic-assisted strategies, as well as discusses the specific behaviors, modulation strategies, role of reactive sites, and mechanism of ROS formation in these systems. The article concludes by highlighting the challenges in large-scale synthesis and industrial application of MOFs for peroxide activation, suggesting the great application potential of MOFs-based materials in environmental remediation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Yin Xu, Xin Tang, Yan Xiao, Huiling Tang, Heng Lin, Yujuan Lv, Hui Zhang
Summary: In recent years, coupling heterogeneous photocatalysis with persulfate (PDS) activation process has been an efficient method for removing organic contaminants in water. However, the exact role of PDS in the photocatalytic process is still unclear. In this study, a novel g-C3N4-CeO2 (CN-CeO2) composite was developed to degrade bisphenol A (BPA) using PDS under visible light. The results showed that under specific conditions, a high percentage of BPA could be eliminated. Furthermore, the study revealed insights into the mechanism of persulfate-enhanced photocatalytic process for water decontamination.
Article
Engineering, Chemical
Xiaohui Fan, Jinjin Zhao, Cheng Cheng, Yin Xu, Hui Zhang
Summary: Efficient solid waste-based catalysts were prepared from polyferric chloride coagulation of phenol-saturated powder activated carbon. The catalyst pyrolyzed at 950 degrees C exhibited the highest reactive activity in peroxymonosulfate (PMS)-based advanced oxidation processes (AOPs), successfully removing bisphenol A (BPA) within 60 minutes. This study presents a valuable approach for waste management and promotes the use of FeAC-950 in wastewater remediation technologies.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Yin Xu, Jeremy Dhainaut, Jean-Philippe Dacquin, Jean-Francois Lamonier, Hui Zhang, Sebastien Royer
Summary: Defect engineering in catalytic materials, specifically modifying the A-site cationic vacancies, has been proven to be a feasible strategy for optimizing the catalytic performance of perovskite materials, as demonstrated by the enhanced formaldehyde oxidation activity of La1-xMnO3 materials.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Review
Chemistry, Multidisciplinary
Fei Wu, Wei Ren, Cheng Cheng, Yan Wang, Heng Lin, Hui Zhang
Summary: This paper discusses the use of biochar as a carbonaceous material in advanced oxidation processes (AOPs), focusing on its precursors, preparation methods, and catalytic activity. The paper also summarizes the activation mechanisms of peroxides by biochar and the effects of water matrices on pollutant degradation. Furthermore, the paper reviews the progress in the modification and regeneration of biochar, and proposes the problems and prospects of biochar-based AOPs.
PROGRESS IN CHEMISTRY
(2022)
Article
Chemistry, Applied
Qingyuan Zheng, Jack H. Williams, Scott Elgersma, Mick D. Mantle, Andrew J. Sederman, G. Leendert Bezemer, Constant M. Guedon, Lynn F. Gladden
Summary: In this study, a pilot-scale fixed-bed reactor compatible with NMR/MRI was developed for Fischer-Tropsch synthesis. Multiple magnetic resonance techniques were applied to quantitatively characterize different product species within catalyst pellets, providing valuable information for catalyst and reactor optimization.
Article
Chemistry, Applied
Lisa Ramisch, Sebastian Pfaff, Sabrina M. Gericke, Edvin Lundgren, Johan Zetterberg
Summary: We present a combination of optical operando techniques that allow simultaneous measurement of adsorbed species on catalyst surfaces, monitoring of surface oxide formation, and imaging of the gas phase above the catalyst surface. The experimental setup was validated by studying CO oxidation on Pd(100) at different pressures, revealing the effects of pressure on the heterogeneous catalytic reaction.
Article
Chemistry, Applied
Marta Paniagua, Gabriel Morales, Juan A. Melero, Daniel Garcia-Salgado
Summary: The influence of common impurities in levulinic acid on the catalytic performance of different acid catalysts for bio-jet fuel production was studied. It was found that furfural had the greatest detrimental effect on catalyst performance, while propyl-sulfonic acid-modified SBA-15 and sulfonic acid resin Amberlyst-70 showed good regeneration ability.
Article
Chemistry, Applied
Jesus Tapiador, Pedro Leo, Guillermo Calleja, Gisela Orcajo
Summary: This study presents a new MOF material, Zn-URJC-13, with acid and basic sites, permanent porosity, and high affinity to CO2 molecules. The Zn-URJC-13 catalyst exhibits efficient performance in CO2 cycloaddition reactions and can be reused multiple times.
Article
Chemistry, Applied
Dan Zhao, Vita A. Kondratenko, Dmitry E. Doronkin, Shanlei Han, Jan-Dierk Grunwaldt, Uwe Rodemerck, David Linke, Evgenii V. Kondratenko
Summary: This study demonstrates the potential of cheap and commercially available Zr or Ti-based supports and ZnO to serve as active and selective catalysts for propane dehydrogenation (PDH). The catalytically active species formed in situ under PDH conditions consist of isolated ZnOx. ZnOx on the surface of LaZrOx shows the highest rate of propene formation.
Article
Chemistry, Applied
Hanbyeol Kim, Jung Rae Kim, Young-Kwon Park, Jeong-Myeong Ha, Jungho Jae
Summary: In this study, metal phosphates were used as catalysts for biomass conversion to produce sustainable aromatics through DielsAlder cycloaddition reactions. The effects of synthesis method, activation method, and P/Ti molar ratio on the structure and acid properties of titanium phosphate catalysts were systematically studied. The mesoporous titanium phosphate catalyst synthesized by hydrothermal method at 180℃ for 12 h followed by ethanol refluxing at 60℃ for 24 h at a molar P/Ti ratio of 1 showed the highest surface area and acid site density.
Article
Chemistry, Applied
Yasin Khani, Sumin Pyo, Kwang-Eun Jeong, Chul-Ung Kim, Moonis Ali Khan, Byong-Hun Jeon, Kun-Yi Andrew Lin, Siyoung Q. Choi, Young-Kwon Park
Summary: A protonated form of Zeolite Socony Mobil-5 (H-ZSM-5) catalyst was synthesized through a hydrothermal method using different sources of silica. The effect of loading the catalyst with yttrium, samarium, and gadolinium on the acidic properties was investigated. Among the metal-loaded catalysts, the Sm/LHZ catalyst showed the best performance in the methanol to propylene conversion due to its high amount of weak and intermediate acid sites, while the Gd-LHZ catalyst increased the selectivity towards ethane and propane.
Article
Chemistry, Applied
Michael Franc, Ivana Cisarova, Jan Vesely
Summary: The present study investigates an enantioselective cyclization of enals with imidazolone derivatives catalyzed by a combination of achiral Pd(0) complex and chiral secondary amine. Corresponding spirocyclic imidazolones were produced in high yields with moderate diastereoselectivity and excellent enantioselectivity. The developed co-operative catalytic methodology provides a highly substituted spirocyclic scaffold with four stereogenic centers under mild conditions.
Article
Chemistry, Applied
Mauro Alvarez, Jennifer Cueto, David P. Serrano, Pablo Marin, Salvador Ordonez
Summary: This study focuses on improving the formulation and preparation methods of catalysts for the production of dimethyl carbonate. By using suitable catalyst preparation methods and copper salt precursors, the researchers successfully produced catalysts with optimal performance for dimethyl carbonate formation.
Article
Chemistry, Applied
Claudia J. Keijzer, Luc C. J. Smulders, Dennie Wezendonk, Jan Willem de Rijk, Petra E. de Jongh
Summary: This study investigates the catalytic behavior of alpha-alumina supported silver catalysts in the presence of chloride. It is found that the particle size of silver can affect the selectivity of the catalyst, but different strategies lead to different results. In this size range, the selectivity of ethylene oxide is correlated to the Ag : Al2O3 surface ratio.
Article
Chemistry, Applied
Takeshi Aihara, Wataru Aoki, Michikazu Hara, Keigo Kamata
Summary: The development of acid-base bifunctional catalysts is important for promoting specific chemical transformations. In this study, Ti-based perovskite oxides were synthesized and used as catalysts for two C-C bond-forming reactions (cyanosilylation and Knoevenagel condensation). The highly pure SrTiO3 nanoparticles with a high specific surface area exhibited the highest catalytic performance, and could be easily recovered and reused.
Article
Chemistry, Applied
Olga Gorlova, Petra Pribylova, Eliska Vyskocilova, Katerina Peroutkova, Jan Kohout, Iva Paterova
Summary: This study investigates the Baeyer-Villiger oxidation of beta-cyclocitral using tin-modified mixed oxides as catalysts. The optimal reaction conditions and the effects of various factors on the reaction course and selectivity were determined. The results show that tin-modified mixed oxides exhibit high activity and selectivity in the oxidation reaction.
Article
Chemistry, Applied
M. I. Avila, M. M. Alonso-Doncel, L. Briones, G. Gomez-Pozuelo, J. M. Escola, D. P. Serrano, A. Peral, J. A. Botas
Summary: The catalytic fast pyrolysis of lignin using ion-exchanged zeolite catalysts showed significant improvements in bio-oil quality and the production of aromatic hydrocarbons and oxygenated compounds.
Article
Chemistry, Applied
Enrico Catizzone, Giorgia Ferrarelli, Paolo Bruno, Girolamo Giordano, Massimo Migliori
Summary: The acid-catalysed alcohol conversion reaction is a promising route for de-fossilization strategies. Research on pure alcohol conversion and simultaneous dehydration of mixed alcohols have shown different product compositions, with the type and distribution of acid sites affecting the reaction mechanism.
Article
Chemistry, Applied
Alireza Ranjbari, Juho Kim, Jihee Yu, Jiyun Kim, Mireu Park, Nayoung Kim, Kristof Demeestere, Philippe M. Heynderickx
Summary: This study investigated a novel kinetic model for the adsorption and photocatalytic degradation of methyl orange using commercial ZnO and reduced ZnO photocatalysts. The results provided new insights into the interaction of catalysts with molecules of different charges and compared with a previous study on methylene blue. The presence of oxygen vacancies in ZnO and their effects on adsorption and photocatalytic degradation were analyzed, and the photocatalytic degradation rate of reduced ZnO was found to increase significantly.
