Article
Chemistry, Applied
Wei Liu, Shengnan Wang, Ruoyang Cui, Zhongxian Song, Xuejun Zhang
Summary: Catalytic oxidation technology is effective for VOC removal, and development of high activity and stable catalyst is crucial. CuMnOx-HS catalyst prepared by special oxidation method shows superior catalytic performance and water resistance, with great potential for practical applications.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Engineering, Environmental
Xiangping Li, Jianguang Zhang, Yanshi Zhang, Bin Liu, Peng Liang
Summary: With the acceleration of industrialization and urbanization, the emission of volatile organic compounds (VOCs) has become a serious problem, and it is urgent to develop efficient methods to eliminate them. Manganese-based catalysts, as a kind of non-noble catalysts, have been widely used in VOCs treatment, especially in catalytic oxidation for VOCs abatement, due to their high catalytic activity, strong stability, and low cost. The structure and composition of manganese-based catalysts play a crucial role in the catalytic oxidation of VOCs, and factors such as specific surface area, oxygen vacancies, reactive oxygen species, and acid sites are important for VOCs oxidation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Yin Zhang, Yuanzhi Li, Jichun Wu, Huamin Cao, Long Zhang
Summary: La-doped manganese oxide catalysts with nanorod morphology and cryptomelane octahedral molecular sieve structure showed significantly enhanced photothermocatalytic activity and reduced acetaldehyde selectivity for the oxidation of ethyl acetate. Among the catalysts, La-OMS-2-B exhibited the highest activity and selectivity, even under infrared illumination. The enhancement in catalytic performance was attributed to the promotion of thermocatalytic activity and improved oxygen activity of OMS-2 by La doping.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Yungang Wang, Xu Liang, Yanjun Dai, Li Zou, Dou Sun, Feixiang Li
Summary: In this study, a composite metal oxide catalyst Cu-x-Mn-y/SBA-15 was prepared by loading Cu and Mn on SBA-15 molecular sieve, and its catalytic performance in VOCs treatment was investigated. The results showed that the catalyst exhibited excellent catalytic activity and stability, achieving high toluene conversion rate.
Article
Materials Science, Multidisciplinary
Katarina Muzina, Stanislav Kurajica, Patrick Guggenberger, Marina Duplancic, Goran Drazic
Summary: Pure and copper-doped ceria nanoparticles were synthesized using the hydrothermal method and tested for catalytic activity. The sample with 40 mol.% copper showed the highest catalytic activity, and a beneficial synergistic effect between copper and cerium species was observed in the overall properties of the materials.
JOURNAL OF MATERIALS RESEARCH
(2022)
Article
Energy & Fuels
Jun Han, Weiwei Shan, Bo Zhao, Yiming Wang, Qiang Zhang, Linbo Qin, Wangsheng Chen
Summary: Cu-doped manganese oxide molecular sieve catalysts were synthesized and their ability to remove Hg0 and resist sulfur was investigated under simulated flue gas conditions. The results showed that appropriate Cu doping increased the active sites and specific surface area of the catalyst, leading to higher Hg0 removal efficiency. The Cu doping also enhanced the adsorption of SO2 and reduced the generation of sulfate, improving the sulfur resistance of the catalyst.
Article
Chemistry, Physical
Parag M. M. Shah, Liam A. A. Bailey, David J. J. Morgan, Stuart H. H. Taylor
Summary: Iron-manganese mixed metal oxide catalysts with different Fe:Mn ratios were synthesized and evaluated for total propane oxidation. The Fe0.50Mn0.50Ox catalyst showed the highest activity due to increased surface area and the formation of a Mn2O3 phase. The choice of precipitating agent was found to affect the activity, with the hydroxide-precipitated catalysts generally being more active.
Article
Engineering, Environmental
Yang Liu, Xiao Zhou, Jingjing Zhan, Xuwang Zhang, Hao-Yu Lian, Hao Zhou, Xianliang Yi, Huan-Huan Yang, Jiajia Shan
Summary: Facile structural modification of α-MnO2 through single incorporation of Ag element enhances the efficiency of benzene oxidation. Ag+ ions partially replace K+ ions in the MnO2 structure, leading to lower crystallinity, smaller crystallite, and distorted lattice arrangement. Electron transfer from Ag+ to lattice oxygen weakens Mn-O bonds, increasing the mobility of bulk lattice oxygen. This results in a larger number of surface lattice oxygen and improved reactivity of surface adsorbed and lattice oxygen, promoting complete conversion of benzene to CO2.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Mengqiu Huang, Kun Shi, Zhengjie Xu, Yuping Lin, Miaomiao Jiang, Zeheng Yang, Guoqing Wu, Huayong Chen, Weixin Zhang
Summary: The authors have reported a method for fabricating CuO/Mn3O4 hierarchical arrays on a copper substrate through oriented catalytic oxidation and subsequent annealing. The resulting electrode exhibits excellent electrochemical performance, attributed to the unique oxidation process and subsequent treatment.
ADVANCED MATERIALS INTERFACES
(2021)
Article
Engineering, Environmental
Yang Liu, Huan-Huan Yang, Hao Zhou, Xianliang Yi, Jingjing Zhan
Summary: The incorporation of Ce and Sn elements into α-MnO2 parent was attempted to improve catalytic benzene oxidation performance. Ce doping caused lattice distortion and increased Mn3+ content, facilitating oxygen vacancy formation. Sn deposition on CeMn substrate induced strong metal support interaction, promoting the construction of active oxygen vacancies. This methodology offers high mineralization and avoids moisture-aroused inactivation.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Physical
Houcine Touati, Sabine Valange, Marc Reinholdt, Catherine Batiot-Dupeyrat, Jean-Marc Clacens, Jean-Michel Tatibouet
Summary: Catalytic oxidation of low concentrations of ethanol in dry and humid air streams at low temperature (60 degrees C) using ozone as the oxidant was investigated. Water vapor in the gas phase was found to have a beneficial effect on the conversion of ethanol and ozone. The Pd-Mn/TiO2 catalyst containing 0.5 wt% Pd and 5 wt% Mn showed superior oxidation efficiency by increasing ozone decomposition and selectivity to CO2.
Article
Chemistry, Physical
Ting Cai, Zhe Liu, Jing Yuan, Peng Xu, Kunfeng Zhao, Qin Tong, Wenquan Lu, Dannong He
Summary: Manganese oxide is an active catalyst widely used in various reactions, with α-MnO2 showing better activity for propane total oxidation compared to 8-MnO2 and Mn2O3. The research provides insights into the structure and application of Mn-based materials in VOCs removal.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Jinyuan Zhao, Xiai Zhang, Jianjun Wang, Xiaojun Jia, Hongchang Zhang, Feng Su, Chuncai Kong, Zhimao Yang, Tong Wang, Hao Zhu
Summary: Copper-manganese composite oxide catalyst prepared through improved solvothermal reduction exhibited excellent catalytic activity and stability for the oxidation of toluene.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Green & Sustainable Science & Technology
Ya Cheng, Weiyao Xiong, Tinglin Huang, Gang Wen
Summary: Due to the low efficiency of catalytic oxidation of ammonium and manganese in high alkalinity groundwater by manganese oxide filter column, the effect of doping copper (Cu) and cobalt (Co) on catalytic activity was investigated. The results showed that low Cu doping increased the ammonium removal efficiency while decreasing the manganese removal efficiency. Low Co doping was beneficial to the start-up period of the filter column. The study also revealed the formation of calcium carbonate on the surface of the filter media due to the high alkalinity of the water, which was found to affect the catalytic activity of manganese oxide filter media.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Siyu Ding, Chen Zhu, Hajime Hojo, Hisahiro Einaga
Summary: The study investigated microwave-assisted heterogeneous catalytic oxidation of benzene using Cu-Mn spinel oxides, which showed superior activity and lower apparent activation energy under microwave heating, reducing the required reaction temperature. Transient tests revealed the high reactivity of Cu-Mn spinel oxides related to lattice oxygen on the catalyst surface, which was enhanced under microwave heating, leading to an accelerated benzene oxidation reaction. The combination of adsorption and catalytic oxidation processes efficiently decomposed benzene at low concentrations using Cu-Mn spinel oxides and zeolites.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Physical
Peter J. Miedziak, Samuel Pattisson, Jennifer K. Edwards, Brian Tarbit, Stuart H. Taylor, Graham J. Hutchings
Summary: In oxidation reactions involving oxygen as the terminal oxidant, autocatalysis can play a significant role under certain conditions, influencing reaction pathways and product formation. The initial reaction in some oxidation processes may be non-radical, but subsequent steps could involve radical processes. The impact of autocatalysis reactions varies depending on the reaction conditions.
Article
Chemistry, Physical
Tongqi Ye, James H. Carter, Bao Chen, Xin Li, Yuewen Ye, Stuart H. Taylor, Graham J. Hutchings
Summary: The oxidative dehydrogenation of propane to propene using carbon dioxide is a promising new synthesis route. Iron-chromia catalysts prepared by sol-gel exhibited high activity and a high concentration of acid and base sites. Despite some coking observed, the initial activity can be restored through oxidative regeneration.
CATALYSIS COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Edward Jones, Donald R. Inns, Sandra E. Dann, Ian P. Silverwood, Simon A. Kondrat
Summary: This study investigates the adsorption of ethylene on a model skeletal cobalt catalyst, providing insights into the Fischer-Tropsch chain-growth mechanism. Inelastic and quasi-elastic neutron scattering techniques are employed to characterize the speciation and mobility of surface species. The results reveal the sensitivity of skeletal cobalt catalyst to adsorbed hydrogen and methyl groups, as well as the modification of adsorbed species dynamics by CO co-adsorption.
CATALYSIS COMMUNICATIONS
(2022)
Review
Chemistry, Multidisciplinary
James W. M. Crawley, Isla E. Gow, Naomi Lawes, Igor Kowalec, Lara Kabalan, C. Richard A. Catlow, Andrew J. Logsdail, Stuart H. Taylor, Nicholas F. Dummer, Graham J. Hutchings
Summary: The development and application of trimetallic nanoparticles are rapidly accelerating in the field of catalysis, presenting exciting opportunities. Current methods for design, synthesis, analysis, and application of trimetallic nanoparticles have been explored, but challenges in controlling elemental segregation and identifying influential characteristics remain. The multielement composition of trimetallic nanoparticles exhibits beneficial synergy in oxidation, dehydrogenation, and hydrogenation reactions, but further work is needed to maximize productivity. Computational support is crucial for experimental endeavors, and the marriage of simulation and experiment is necessary to advance this field. Clear challenges remain in identifying, making, and applying trimetallic catalysts efficiently, but the outlook is strong.
Article
Chemistry, Physical
Michael Bowker, Naomi Lawes, Isla Gow, James Hayward, Jonathan Ruiz Esquius, Nia Richards, Louise R. Smith, Thomas J. A. Slater, Thomas E. Davies, Nicholas F. Dummer, Lara Kabalan, Andrew Logsdail, Richard C. Catlow, Stuart Taylor, Graham J. Hutchings
Summary: The rise in atmospheric CO2 concentration has led to a research focus on designing catalytic routes to use CO2 as a feedstock. This study investigates the Pd/ZnO catalyst for CO2 hydrogenation and finds that it has consistent metal particle composition and activity trend regardless of different synthesis procedures and ZnO types. The study provides important insights for the discovery and design of improved catalysts for CO2 hydrogenation.
Review
Chemistry, Physical
Andrea De Zanet, Simon A. Kondrat
Summary: Transition metal carbides, especially the metastable a-MoC1-x phase, have shown promising catalytic properties for various reactions. However, the challenging procedure for preparing metastable carbides remains a significant obstacle. This review discusses the properties, catalytic applications, and synthesis methods of a-MoC1-x, highlighting the importance of understanding intermediate phases and carbon removal. The development of novel techniques and correlation with theoretical studies are also discussed for the controllable and scalable synthesis of a-MoC1-x.
JOHNSON MATTHEY TECHNOLOGY REVIEW
(2022)
Article
Chemistry, Physical
Christopher D. Evans, Jonathan K. Bartley, Stuart H. Taylor, Graham J. Hutchings, Simon A. Kondrat
Summary: Exceptional selectivity of LaMnO3 supported Au catalysts for the oxidation of glycerol to tartronic acid is reported. The choice of metal nanoparticle influences the selectivity of the catalysts.
Article
Chemistry, Physical
Samuel Pattisson, Simon R. Dawson, Grazia Malta, Nicholas F. Dummer, Louise R. Smith, Anna Lazaridou, David J. Morgan, Simon J. Freakley, Simon A. Kondrat, Joost J. Smit, Peter Johnston, Graham J. Hutchings
Summary: The commercialization of gold for acetylene hydrochlorination is a significant achievement in the field. The development of second-generation gold catalysts aims to enhance their activity and stability. This study demonstrates that the surface oxygen content of carbon-based gold catalysts affects their activity. By modifying the Hummers chemical oxidation method before gold deposition, the oxygen content of carbon can be adjusted. The oxidized carbon-based catalysts exhibit higher activity at lower temperatures compared to untreated carbon, with an optimum oxygen content of around 18%. Increasing the oxygen content and concentration of C-O functionality lowers the catalyst's light-off temperature, offering a potential approach to produce highly active acetylene hydrochlorination catalysts.
Review
Chemistry, Multidisciplinary
Nicholas F. Dummer, David J. Willock, Qian He, Mark J. Howard, Richard J. Lewis, Guodong Qi, Stuart H. Taylor, Jun Xu, Don Bethell, Christopher J. Kiely, Graham J. Hutchings
Summary: The direct transformation of methane to methanol at a larger scale remains challenging due to the low reactivity of methane. This review examines several promising routes to methanol and evaluates the performance targets necessary for process development. It provides critical perspectives on future operation and discusses the emergence of active heterogeneous catalysts and their reaction mechanisms.
Article
Chemistry, Physical
Andrea Bartoletti, Angela Gondolini, Nicola Sangiorgi, Matteo Aramini, Matteo Ardit, Marzio Rancan, Lidia Armelao, Simon A. Kondrat, Alessandra Sanson
Summary: The surface area of CaCu3Ti4O12 increased significantly after ball milling, which also introduced more structural defects. The milled sample showed notably higher photocatalytic degradation efficiency than the as-synthesized sample for both rhodamine B and cetirizine hydrochloride, even after normalisation for surface area. The improved catalytic performance can be attributed to the structural defects observed.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Parag M. M. Shah, Liam A. Bailey, Stuart H. Taylor
Summary: A series of ceria-manganese mixed metal oxide catalysts with different Ce:Mn ratios were prepared by coprecipitation, and their capabilities for total oxidation of propane and naphthalene were evaluated. The catalyst with a higher manganese content showed the highest activity, specifically Ce0.25Mn0.75Ox. Characterization techniques revealed that the high activity of Ce0.25Mn0.75Ox was attributed to the formation of phase-separated Mn-substituted ceria and Mn2O3 phases. The catalyst preparation technique also played a significant role, as the mechanochemical and urea catalysts exhibited greater activity than the carbonate coprecipitated catalyst.
Article
Chemistry, Multidisciplinary
Jonathan Ruiz Esquius, David J. Morgan, Gerardo Algara Siller, Diego Gianolio, Matteo Aramini, Leopold Lahn, Olga Kasian, Simon A. Kondrat, Robert Schloegl, Graham J. Hutchings, Rosa Arrigo, Simon J. Freakley
Summary: The oxygen evolution reaction (OER) is crucial for future energy systems based on water electrolysis. Iridium oxides show promise as catalysts due to their corrosion resistance in acidic and oxidizing conditions. The transformation of highly active iridium (oxy)-hydroxides prepared using alkali metal bases into rutile IrO2 at high temperatures (>350 degrees C) results in poor activity, but the transformation into Li-intercalated IrOx retains comparative activity and improved stability. This nanocrystalline lithium iridate form could be more resistant to industrial procedures and help stabilize the high populations of redox active sites in amorphous iridium (oxy)hydroxides.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Parag M. M. Shah, Liam A. A. Bailey, David J. J. Morgan, Stuart H. H. Taylor
Summary: Iron-manganese mixed metal oxide catalysts with different Fe:Mn ratios were synthesized and evaluated for total propane oxidation. The Fe0.50Mn0.50Ox catalyst showed the highest activity due to increased surface area and the formation of a Mn2O3 phase. The choice of precipitating agent was found to affect the activity, with the hydroxide-precipitated catalysts generally being more active.
Article
Engineering, Environmental
Marvin Chavez-Sifontes, Adrian Garcia, Rut Sanchis, Clarisse Furgeaud, Alvaro Mayoral, Raul Arenal, David J. Morgan, Stuart H. Taylor, Jose Manuel Lopez, Tomas Garcia, Benjamin Solsona
Summary: The addition of niobium can significantly enhance the catalytic activity of Ir/TiO2 catalysts, resulting in the presence of abundant isolated IrOx surface species and excellent catalytic activity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(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.
