Article
Engineering, Environmental
Ganghong Huang, Zishun Li, Kun Liu, Yingjie Zhang, Xuekun Tang, Qian Peng, Jing Huang, Guofan Zhang
Summary: In this study, a bismuth metal-organic framework was used as a modifier to prepare a modified BiOI photocatalytic material (BBI-2). BBI-2 exhibited much higher photocatalytic activity compared to pure BiOI, which was attributed to the optimization of its morphology, size, specific surface area, energy band position, and the transmission and separation properties of photogenerated carriers. Furthermore, BBI-2 showed distinct photocatalytic antibacterial activity, low cytotoxicity, and good compatibility with blood.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Materials Science, Ceramics
Fanyong Yan, Yao Wang, Chunhui Yi, Jinxia Xu, Bowei Wang, Ran Ma, Ming Xu
Summary: Composite photocatalysts with broad spectral response and efficient separation of photoinduced carriers were synthesized by installing CDs on the surface of three-dimensional hollow microsphere nanophotocatalyst Bi2WO6 using the hydrothermal approach. The higher photocatalytic capability of 0.5% CDs/Cl-Bi2WO6 was observed in the degradation procedure, attributed to the doping of Cl and the presence of CDs enhancing visible light capture and suppressing electron-hole pair complexation. Scavenger-quenching assays confirmed the involvement of h(+), center dot OH, and center dot O-2(-) as the primary actors in the degradation process. A feasible degradation mechanism for trichloroethylene was proposed. This study presents a novel concept for the effective degradation of organic pollutants using composite nanophotocatalysts.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Environmental
Sha Chen, Danlian Huang, Li Du, Lei Lei, Yashi Chen, Guangfu Wang, Ziwei Wang, Wei Zhou, Jiaxi Tao, Ruijin Li, Chengyun Zhou
Summary: Surface-modified BiVO4 catalysts with Lewis basic sites can generate O-1(2) under PMS activation, leading to efficient degradation of ciprofloxacin (CIP).
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Yuhong Wang, Dongsheng Wang, Hu Xu, Jun Yu, Tingting Chen
Summary: The design and construction of heterojunction photocatalysts, especially using metal-organic frameworks (MOFs), is found to enhance photocatalytic performance. In this study, a MOF-902(Ti) and BiOCl heterojunction (TB) was developed for efficient degradation of antibiotic tetra-cycline (TC) under visible light. The TB heterojunction exhibits superior photocatalytic activity compared to MOF-902(Ti) and BiOCl, attributed to improved visible light response, increased surface area/pore volume, enhanced charge carrier separation and transfer. Reactive species trapping confirms the involvement of center dot O2-, e-, and h+ in the TC photodegradation. A possible mechanism for the enhanced photocatalytic activity of TB heterojunction is proposed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Yechen Wang, Yaru Wang, Jianjun Zhao, Yiming Xu
Summary: The study examined the effects of different cations and anions on the production of H2O2 under semiconductor photocatalysis conditions. The results showed that specific ions can greatly promote or inhibit the production of H2O2, and there may also be interactions between certain ions.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Environmental Sciences
Biao Zhang, Yu Liu, Hongyu Zhu, Dongxu Gu, Kanghong Zhou, Jianyuan Hao
Summary: This study successfully prepared visible light-driven FeIn2S4 microsphere/BiOBr nanoplate binary heterojunction photocatalysts and investigated their properties using various analytical methods. The photocatalysts exhibited high degradation efficiency in the photocatalytic degradation experiment. The formation of heterojunctions improved the separation of photogenerated charge carriers, specific surface area, and redox capacity. This research is of great significance for future environmental remediation research.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Huazhe Wang, Wanqian Guo, Qishi Si, Banghai Liu, Qi Zhao, Haichao Luo, Nanqi Ren
Summary: Polymeric carbon nitride (PCN), a star material in photocatalysis and persulfate activation, was used to synthesize bifunctional biochar-doped PCN. The optimized PCN/BC hybrid not only activated PS directly, but also exhibited improved optical properties. Mechanism studies showed different degradation pathways of BPA in the CNBC/PS and CNBC/PS/VIS systems, providing insights into hybrid advanced oxidation technologies.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Yechen Wang, Yaru Wang, Jianjun Zhao, Min Chen, Xubo Huang, Yiming Xu
Summary: Efficient production of H2O2 was achieved through oxygen reduction reaction on modified WO3 with Au nanoparticles. Au/WO3 showed superior performance due to selective ORR to H2O2 and release of protons into aqueous solution for H2O2 protection from decomposition.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Materials Science, Multidisciplinary
Akshay Gaur, Moolchand Sharma, Vishal Singh Chauhan, Rahul Vaish
Summary: Bismuth ferrite (BiFeO3) is a potential material for removing industrial dyes from water through the photocatalysis process. Glass-ceramic with a composition of Bi2O3-Fe2O3-BaO-B2O3 was fabricated to utilize the BiFeO3 phase. The sample heat-treated at 480 degrees C for 2 hours showed the maximum degradation of Methylene Blue (MB) dye of -69% in 300 minutes. The stability of the fabricated samples was checked using XRD pattern and SEM micrographs, and MB dye degradation was calculated using RGB values obtained from a smartphone app.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Inorganic & Nuclear
Yao Xu, Zhuozhe Li, Fang Fang, E. Yifeng, Guizhi Zhao
Summary: A new type of light stabilized nanocatalyst BiOCl/g-C3N4 was synthesized with superior morphology features and excellent photochemical catalytic performance, especially under visible light irradiation. The interaction between BiOCl and g-C3N4 was proven to enhance the separation of photo-generated holes and electrons, significantly improving the material's photostability and photocatalytic performance, as demonstrated through various experiments.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Environmental Sciences
Guoshuai Liu, Yukun Zhu, Qun Yan, Han Wang, Peng Wu, Yaoliang Shen, Yasmina Doekhi-Bennani
Summary: The removal of bromate has gained attention in drinking water treatment, and photocatalysis technology using monoclinic bismuth vanadate (BiVO4) single crystal as a visible photocatalyst has shown promising results with almost 100% removal efficiency. The spatial transfer of photo-generated electrons and holes, as well as high photocatalytic activity, contribute to the effective removal of bromate ions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Benyin Zhang, Hao Xu, Mingming Wang, Luhan Su, Shijin Zhang, Yanting Zhang, Qingguo Wang
Summary: This study focuses on using bismuth terephthalate material as a potential adsorbent and photocatalyst for the removal of tetracycline in water. The results show that the bismuth terephthalate material exhibits good adsorption and photocatalytic degradation performance under visible light irradiation. The study highlights the potential of bismuth terephthalate as a dual-functional material for environmental remediation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Review
Chemistry, Multidisciplinary
Jiahao Wang, Xinxin Lv, Zhiyong Jiang
Summary: Asymmetric catalysis is a powerful tool for synthesizing enantioenriched molecules. Deracemization, the direct conversion of a racemic compound to one enantiomer, is an attractive approach with high-atom efficiency. Visible-light-driven photocatalysis has recently emerged as a promising platform for deracemization, overcoming kinetic and thermodynamic challenges in chemical transformations without the need for additional stoichiometric reagents. This review systematically summarizes and discusses the advances in this area, categorizing examples based on energy transfer and single-electron transfer in photocatalysis.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Physical
Yijin Qiu, Jianjiang Lu, Yujun Yan, Junfeng Niu, Yanan Duan
Summary: A novel flower-like spherical BiOCl-BMO photocatalyst was synthesized using a solvothermal method. It exhibited high photocatalytic activity in degrading tetracycline under visible-light irradiation.
SURFACES AND INTERFACES
(2022)
Article
Environmental Sciences
Jingwen Chen, Menglin Wu, Jiupai Ni, Chengsheng Ni
Summary: Photocatalytic oxidation of NOx using visible light is an environmentally friendly method. This study found that Cs3Bi2-xPbxBr9-x (x = 0.0443), with Br vacancy (V-Br) induced by Pb2+ doping, exhibits significant NO oxidation efficiency under visible light. Moreover, the di-azo coupling was found to passivate the activation of NO on V-Br.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
R. Nandan, S. Nanda, O. Y. Bisen, W. Raza, K. K. Nanda
Summary: Transition metal-based nitrogen-doped carbon nanocomposites derived from tobacco have shown promising catalytic efficiency for reduction reactions and non-enzymatic electrochemical glucose sensing. The utilization of tobacco as a nitrogen-carbon precursor opens up possibilities for various applications of targeted N-doped carbon-based composites.
MATERIALS TODAY SUSTAINABILITY
(2022)
Article
Energy & Fuels
Wei Zhang, Jie Zhao, Ahmed A. Allam, Yue Xin, Jingqi Lin, Ting Gao, Jamaan S. Ajarem, Ximing Li, Chuanyi Wang, Detlef W. Bahnemann
Summary: In this study, a nutshell-like bismuth tungstate was synthesized and Pd nanoparticles were deposited on its surface. It was found that the addition of Pd improved the photocatalytic activity of the bismuth tungstate, enhancing the separation of electrons and holes and facilitating the conversion of NO to environmentally friendly NO3-.
Article
Chemistry, Physical
Xinzhu Pang, Nathan Skillen, Detlef W. Bahnemann, David W. Rooney, Peter K. J. Robertson
Summary: Hydrogen peroxide (H2O2) is an important chemical for organic synthesis, environmental remediation, and liquid fuel. This study explored the photocatalytic generation of H2O2 using different catalysts, and found that Au/ZnO showed the best performance. The presence of Au on ZnO accelerated the generation and adsorption of H2O2, while Ag atoms on Ag/ZnO were unstable and decreased the yield of H2O2.
Article
Chemistry, Physical
Qiuhui Zhu, Reshalaiti Hailili, Yue Xin, Yingtang Zhou, Yu Huang, Xinzhu Pang, Ke Zhang, Peter K. J. Robertson, Detlef W. Bahnemann, Chuanyi Wang
Summary: This study develops a full-spectrum Bi@Bi2Ti2O7 photocatalyst with rich-oxygen vacancies (OVs) via a one-pot hydrothermal method. The optimized composite photocatalyst exhibits significantly improved photocatalytic efficiency for removing ppb-level NO under visible-near infrared (Vis-NIR) irradiation. The enhanced performance is attributed to the co-effect of Bi and OVs, which benefits the adsorption and photocatalytic activation of NO, as well as broadens light absorption to the near infrared region.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Energy & Fuels
Detlef Bahnemann, Peter Robertson, Chuanyi Wang, Wonyong Choi, Helen Daly, Mohtaram Danish, Hugo de Lasa, Salvador Escobedo, Christopher Hardacre, Tae Hwa Jeon, Bupmo Kim, Horst Kisch, Wei Li, Mingce Long, M. Muneer, Nathan Skillen, Jingzheng Zhang
Summary: As nations transition towards low or net zero carbon economies due to global climate change, the need for practical alternative fuels is urgent. Hydrogen gas is considered one of the most desirable substitutes for traditional hydrocarbons, but obtaining "green" hydrogen from low or zero carbon footprint sources presents challenges. Research focuses on practical techniques for producing "green" hydrogen through photocatalytic or photoelectrocatalytic processes. However, the capability of this technology to produce hydrogen at scale has faced significant issues. This road map article explores various aspects of photocatalytic and photoelectrocatalytic hydrogen generation, including processes, materials science, reactor engineering, and biomass reforming applications.
JOURNAL OF PHYSICS-ENERGY
(2023)
Article
Nanoscience & Nanotechnology
Reshalaiti Hailili, Xiaokaiti Reyimu, Zelong Li, Xu Lu, Detlef W. Bahnemann
Summary: Effective removal of dilute nitrogen oxide (NO, ppb) without NO2 emission is still challenging in environmental pollution control. The construction of photocatalysts with diversified microstructures and atomic arrangements has been found to promote NO adsorption, activation, and complete removal without secondary pollution. In this study, the microstructure of ZnO photocatalysts was regulated by altering the reaction temperature and alkalinity, resulting in enhanced NO removal and reduced NO2 yields through defect-related surface-interface aspects. Mechanistic exploitations revealed that regulated microstructures, defect-related charge carrier separation, and strengthened surface interactions contributed to improved NO removal and simultaneous avoidance of NO2 formation. This investigation sheds light on the facile regulation of microstructures and the roles of surface chemistry in the oxidation of low concentration NO in the ppb level upon light illumination.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Muhammad Kamran, Tarek A. Kandiel, Safwat Abdel-Azeim, Mohamed A. Morsy, Detlef W. Bahnemann
Summary: This article explores TiO2 nanomaterials as promising photocatalysts for NOx depollution from air under sunlight irradiation. Experimental results show that brookite TiO2 exhibits comparable photocatalytic activity to benchmark TiO2 P25 and higher selectivity towards the conversion of NOx into nitrate ions. The enhanced selectivity is attributed to the higher density of defects on brookite TiO2 surfaces, which facilitates the adsorption of NO2 while favoring the dissociative adsorption of water.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Jing Ma, Yang Tang, Gui Lu, Yu Wang, Wenke Niu, Dong Fu, Kai Zhang, Detlef W. Bahnemann, Jia Hong Pan
Summary: A PVDF/CB/TiO2 conductive membrane was fabricated through the hybridization of PVDF, mesoporous TiO2 spheres (MTS), and carbon black (CB). The membrane showed a highly porous structure and excellent photoelectrocatalytic (PEC) properties, achieving a high decolorization rate of methylene blue (MB) in a continuous cross-flow filtration process.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Nanoscience & Nanotechnology
Haoran Wang, Reshalaiti Hailili, Xiaoyu Jiang, Guoliang Yuan, Detlef W. Bahnemann, Xiong Wang
Summary: The successful construction of heterojunction facilitates the improvement of solar light utilization efficiency. In this study, visible-light-driven AgBr was deposited on the surface of lamellar BiVO4 to enhance charge carrier separation and photocatalytic effectiveness. The catalyst with an optimal AgBr/BiVO4 ratio exhibited significantly enhanced decolorization ability and high stability. The S-scheme carrier migration mechanism was investigated, revealing the effective charge carrier separation/transfer and the excellent photocatalytic performance.
Article
Chemistry, Multidisciplinary
Jakob Schlenkrich, Franziska Luebkemann-Warwas, Rebecca T. Graf, Christoph Wesemann, Larissa Schoske, Marina Rosebrock, Karen D. J. Hindricks, Peter Behrens, Detlef W. Bahnemann, Dirk Dorfs, Nadja C. Bigall
Summary: Destabilizing ligand-stabilized semiconductor nanocrystal solutions results in the formation of macroporous self-supporting nanocrystal networks called hydrogels, which have high surface accessibility. The delocalization of charge carriers in these gels extends their mobility and enhances photocatalytic reactions. Recent advances in colloid chemistry enable the synthesis of nanocrystals with specific physicochemical properties, which, when combined with nanocrystal-based hydrogels, can lead to novel materials with optimized photocatalytic properties. This study demonstrates that CdSe quantum dots, CdS nanorods, and CdSe/CdS dot-in-rod-shaped nanorods as nanocrystal-based hydrogels show significantly higher hydrogen production rates compared to their ligand-stabilized nanocrystal solutions. The gel synthesis through controlled destabilization by ligand oxidation ensures high surface-to-volume ratio, facilitates photocatalytic hydrogen production without a co-catalyst, and overcomes colloidal instability issues in photocatalysis. X-ray photoelectron spectroscopy and photoelectrochemical measurements confirm the advantageous properties of these 3D networks for photocatalytic hydrogen production.
Editorial Material
Chemistry, Physical
Kangwoo Cho, Wonyong Choi, Detlef Bahnemann
JOURNAL OF PHYSICAL CHEMISTRY A
(2023)
Editorial Material
Chemistry, Physical
Kangwoo Cho, Wonyong Choi, Detlef Bahnemann
JOURNAL OF PHYSICAL CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Theophile Niyitanga, Waseem Raza, Khursheed Ahmad, Ali Alsulmi, Haekyoung Kim
Summary: In this study, Cs3Bi2I9 MHPs were synthesized using simple protocols and strategies. The crystalline nature and phase, surface morphological properties, and photo-catalytic hydrogen generation of the Cs3Bi2I9 MHPs were investigated. The introduction of Pt co-catalyst enhanced the photo-catalytic performance for hydrogen evolution reaction.
Article
Chemistry, Physical
Khursheed Ahmad, Theophile Niyitanga, Archana Chaudhary, Waseem Raza, Rais Ahmad Khan, Haekyoung Kim
Summary: In this study, a lead-free perovskite-like material MA(3)Sb(2)I(9) was synthesized by a hydrothermal method, and its performance in the photocatalytic hydrogen evolution reaction (HER) was investigated. The results showed that the synthesized material exhibited good catalytic performance for the splitting of HI using hypophosphorous acid as scavenger, and the addition of platinum nanoparticles further enhanced the rate of hydrogen evolution.
Article
Engineering, Environmental
Haitao Ren, Fan Qi, Abdelkader Labidi, Ahmed A. Allam, Jamaan S. Ajarem, Detlef W. Bahnemann, Chuanyi Wang
Summary: In this study, carbon quantum dots (CQDs) with excellent fluorescence properties were prepared from apple leaf waste and used as a fluorescent probe for the detection of Fe3+ in aqueous environments. The CQDs exhibited high fluorescence stability, specific recognition ability for Fe3+, and recyclability.
ACS ES&T ENGINEERING
(2023)
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.
