Article
Materials Science, Ceramics
Dehui Leng, Tingting Wang, Chengchao Du, Xiaoxiao Pei, Yixin Wan, Junli Wang
Summary: Bismuth trioxide (Bi2O3) is known for its polymorphism and versatile applications. In this study, highly discrete beta-Bi2O3 nanoparticles (NPs) were successfully synthesized by thermal oxidation of nearly monodisperse Bi nanoparticles. The size and shape of beta-Bi2O3 NPs could be controlled by the size of parent Bi NPs, and the beta and alpha polymorphs could be selectively achieved by adjusting the oxidation temperature. The beta-Bi2O3 NPs exhibited remarkable thermal expansion anisotropy and good photocatalytic activity for visible-light degradation of dyes.
CERAMICS INTERNATIONAL
(2022)
Article
Nanoscience & Nanotechnology
Maira Liaqat, Khalid Nadeem Riaz, Tahir Iqbal, Ghulam Nabi, Muhammad Rizwan, M. Shakil
Summary: Heterostructure BiVO4/Bi2O3 nanocomposites with enhanced visible light activity were synthesized through a hydrothermal route. The p-n heterojunction formed between the p-type Bi2O3 and n-type BiVO4 effectively reduced the recombination of photogenerated charge carriers, leading to excellent photocatalytic performance and stability.
Article
Engineering, Environmental
Benyin Zhang, Hao Xu, Mingming Wang, Luhan Su, Caobin Wu, Qingguo Wang
Summary: In this study, a stable material, BiBDC/BiVO4 heterojunction, was constructed by using a hydrothermal method to efficiently remove organic pollutants from water under visible light irradiation. The improved performance is attributed to the broadened optical absorption range and accelerated separation of photogenerated electrons and holes by the heterojunction. BiBDC/BiVO4 also showed excellent reusability and stability, making it a potential candidate for practical application.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
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)
Article
Environmental Sciences
Wei Liu, Zhaohua Li, Qun Kang, Lilian Wen
Summary: This study prepared an efficient Alpha-Bi2O3/g-C3N4 photocatalytic composite, which, when combined with H2O2, can effectively degrade antibiotic pollutants such as DOX in water. The composite not only exhibited enhanced photocatalytic activity, but also improved the degradation efficiency of DOX. The research provides an efficient, clean, and recyclable purification strategy for removing antibiotic contaminants from water.
ENVIRONMENTAL RESEARCH
(2021)
Article
Chemistry, Applied
Yingnan Zhao, Xing Qin, Xinyu Zhao, Xin Wang, Huaqiao Tan, Huiying Sun, Gang Yan, Haiwei Li, Wingkei Ho, Shun-cheng Lee
Summary: A novel polyoxometalate PW12O403--doped Bi2O3-x/Bi Schottky photocatalyst was prepared and showed enhanced photocatalytic activity through optimizing the electronic structure and accelerating photogenerated carrier separation. PBOB-18 exhibited the best photocatalytic performance and showed significant degradation of TBBPA and NO.
CHINESE JOURNAL OF CATALYSIS
(2022)
Article
Environmental Sciences
Yajuan Zhao, Pu Dang, Yaqian Gao, Yan Li, Huidong Xie, Chang Yang
Summary: Co3O4/Bi4O7/Bi2O3 (CBB) composites were prepared and used as catalysts for the degradation of tetracycline (TC) activated by peroxymonosulfate (PMS) under visible light. The system showed high efficiency in degrading TC and had good reusability. The study also revealed the active species and proposed a double Z-scheme degradation mechanism.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Dejun Zou, Xuebing Ji, Jing Yang, Haiyan Yang, Zhengjun Shi, Dawei Wang
Summary: In this article, a two-dimensional bismuth complex (Bi-nic) was successfully synthesized using nicotinic acid as ligand. Ag2O/Bi-nic nanocomposites with high visible-light driven photocatalytic activity were prepared using Bi-nic as precursor. The Ag2O/Bi-nic nanocomposites exhibited excellent photocatalytic activities in degradation of sulfonamide antibiotics under visible light.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Environmental Sciences
Qiao Wang, Yiting Cao, Yuemi Yu, Chao Zhang, Jiahao Huang, Guoshuai Liu, Xuedong Zhang, Zhihong Wang, Hale Ozgun, Mustafa Evren Ersahin, Wei Wang
Summary: In this study, Co-doped Bi/BiOBr nanocomposites were prepared and their photocatalytic performance was evaluated. The nanocomposites exhibited excellent catalytic activity under visible-light irradiation, thanks to the modulation of their electron structure. The mechanism of BPA removal by the nanocomposites was also studied.
Article
Chemistry, Physical
Shuaishuai Lu, Tong Wu, Yanan Liu, Haopeng Luo, Fang Jiang, Xin Nie, Huan Chen
Summary: Modified O-doped g-C3N4 with Bi/gamma-Bi2O3 nanoparticles was prepared using the ethanol-assisted solvo-thermal pretreatment and subsequent polymerization method. The obtained material exhibited excellent activity in visible-light photocatalytic degradation and achieved efficient separation of photocarriers through the formation of all-solid Z-Scheme structure.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Chemical
Fang Yuan, Renfeng Yang, Chunquan Li, Xiangwei Zhang, Zhiming Sun
Summary: In this study, three types of bismuth semiconductors were selected to construct heterojunctions with titania supported on diatomite for improving photocatalytic performance under visible light. The Bi2MoO6-TiO2/diatomite composite showed the highest performance, with a mineralization rate of 47.58 times that of the TiO2/diatomite composite. The performance enhancement mechanism was attributed to the relatively high quantum efficiency of the heterojunctions, resulting in a higher generation efficiency of active radicals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Keshavulu Masula, Yadagiri Bhongiri, G. Raghav Rao, P. Vijay Kumar, Someshwar Pola, Manohar Basude
Summary: Ce-doped bismuth oxide showed potential applications in photodegradation of dye pollutants and agrochemical wastewater, due to its reduced band gap energy and increased photocatalytic activity. The Ce doping led to changes in the phase and surface area of the bismuth oxide, resulting in enhanced absorption of visible light and reduced recombination rate of electron-hole pairs.
Article
Environmental Sciences
Malathi Arumugam, Kamala-Kannan Seralathan, Supareak Praserthdam, Muhammad Tahir, Piyasan Praserthdam
Summary: In this study, a novel graphene aerogel/bismuth oxyiodide (GA/BiOI) composite photocatalyst was successfully synthesized and tested for the efficient removal of methyl orange (MO) from wastewater under visible light. The composite exhibited enhanced photocatalytic activity, stability, and potential as an eco-friendly photocatalyst.
Article
Materials Science, Multidisciplinary
Xiang-Feng Wu, Yun-Xuan Fu, Tian-Long Chang, Yun-Ning Jia, Jia-Lu Shang, Hui Wang, Zi-Hao Fan, Chen-Xu Wang, Jun-Zhang Su, Li-Jie Ci
Summary: Bi/Bi2O3 heterojunction was fabricated using Bi nanoparticles by an in situ sintering method, and the surface plasmon resonance (SPR) effect and oxygen vacancy (OV) defects enhanced the visible-light absorption and carrier separation efficiency, improving the photocatalytic activity. The photocatalytic degradation efficiency increased and then decreased with increasing calcination time. This study provides promising guidance for the design of Bi-based photocatalysts and degradation of antibiotics under solar light illumination.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Chemistry, Multidisciplinary
Qiuyun Zhang, Dandan Wang, Rongfei Yu, Linmin Luo, Weihua Li, Jingsong Cheng, Yutao Zhang
Summary: In this study, Bi2O3@Zn-MOF hybrid nanomaterials were synthesized by supporting Zn-based metal-organic framework (Zn-MOF) through the hydrothermal method. The physical and chemical properties of the nanomaterials were characterized using various techniques. The as-prepared Bi2O3@Zn-MOF nanocomposite showed high photocatalytic activity in the degradation of rhodamine B (RhB), which was attributed to its unique structural and optical properties. The nanocomposite also exhibited good recyclability.
GREEN PROCESSING AND SYNTHESIS
(2023)
Article
Chemistry, Analytical
Finly K. Arabbani, Dhanapal Vasu, Subramanian Sakthinathan, Te-Wei Chiu, Ming-Che Liu
Summary: A novel electrochemical sensor based on ZIF-8 nanocomposites has been developed for the analysis of mercury ions. The sensor exhibits high selectivity and sensitivity, and demonstrates good performance in real-time applications.
Article
Spectroscopy
Karuppiah Nagaraj, Subramaniam Kamalesu, Subramanian Sakthinathan, Te-Wei Chiu, Snehal Lokhandwala, Nikhil M. Parekh, Chelladurai Karuppiah
Summary: This study investigated the binding interaction between a surfactant cobalt(III) complex and DNA, and found that they bind through intercalation. The presence of long aliphatic chains in the ligands as well as the larger π-framework of the ligand also enhance the intercalation.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Physical
Jiaxin Jiang, Yu-Feng You, Dhanapal Vasu, Sheng-Chi Chen, Te-Wei Chiu, Gopi Prashanth, Po Chou Chen
Summary: In this research, the functional properties of CuCrO2, the most promising p-type transparent conductive oxide (TCO), were studied. Thin films were fabricated using a spin coating technique. X-ray diffraction and UV-visible absorption were used to analyze the film's diffraction patterns and absorption characteristics. FESEM analysis was used to analyze the physical properties of film formation and surface morphology. Aging properties were analyzed with different precursors and aging times. The CuCrO2 thin films exhibited better transmittance, resistance, figure of merit, and electrical conductivity.
Article
Chemistry, Physical
Arjunan Karthi Keyan, Dhanapal Vasu, Subramanian Sakthinathan, Te-Wei Chiu, Yi-Hsuan Lee, Chia-Cheng Lin
Summary: A sensitive nitrobenzene (NB) sensor using Ag-CuSe composite has been developed for the detection of highly dangerous aromatic nitro compounds. The sensor exhibits excellent electrochemical activity and selectivity, with a low limit of detection and good sensitivity. It has successfully been applied to the removal of pollutants from real water samples and for trace-level detection of nitrobenzene in environmental samples.
Article
Chemistry, Inorganic & Nuclear
Jeena N. Baby, Balasubramanian Akila, Te-Wei Chiu, Subramanian Sakthinathan, V. Abhikha Sherlin, B. Annie Zealma, Mary George
Summary: In this study, a modified solid-state approach using natural deep eutectic green solvents (NADESs) was proposed for the sustainable preparation of a bifunctional catalyst, SrWO4. The as-synthesized SrWO4 particles were analyzed using various spectroscopic and morphological techniques. The electrochemical detection and photocatalytic degradation of model drug compounds, ATP and MTF, were examined using the as-prepared SrWO4 particles as an active catalyst. The results showed that the SrWO4 catalyst exhibited enhanced catalytic activity, lower limit of detection values, and higher sensitivity towards ATP and MTF determination.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Karuppiah Nagaraj, Jitendrabhai Naman, Manojkumar Dixitkumar, Jigeshkumar Priyanshi, Pilavadi Thangamuniyandi, Subramaniam Kamalesu, Snehal Lokhandwala, Nikhil M. Parekh, Swapna Rekha Panda, Subramanian Sakthinathan, Te-Wei Chiu, Chelladurai Karuppiah, Ammasai Karthikeyan, Iruthaya Kalai Selvam
Summary: Our research focuses on metallosurfactant assisted silver decorated ZnO nanoparticles (Ag@ZnO NPs) for environmental applications. We developed a green and ecofriendly method to produce Ag@ZnO nanoparticles using Cassia Alata leaf extract as a reducing agent and [Co(dpq)2(C12H25NH2)2](ClO4)3 as a stabilizing agent. The nanoparticles were characterized using XRD, TEM, DRS and XPS. The photocatalytic experiments demonstrated that Ag@ZnO nanoparticles exhibited excellent visible light photocatalytic activity for the degradation of R6g.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Review
Energy & Fuels
Narayanan Subramanian, Tamizhdurai Perumal, V. L. Mangesh, Ragupathi Chinnadurai, Subramanian Sakthinathan, Te-Wei Chiu, Manickam Selvaraj, Jagannathan Madhavan
Summary: This study provides an exhaustive analysis of zeolite/graphene composites, exploring their fabrication, performance, and potential applications with other materials. It presents future perspectives and challenges, highlighting the synergy of graphene composites in various unexplored fields. The study also reviews historical data to demonstrate advancements in industrial applications of these composites.
Article
Chemistry, Inorganic & Nuclear
Karuppiah Nagaraj, Pilavadi Thangamuniyandi, Subramaniam Kamalesu, Manojkumar Dixitkumar, Anil Kumar Saini, Shiv Kumar Sharma, Jitendrabhai Naman, Jigeshkumar Priyanshi, Chandrabose Uthra, Snehal Lokhandwala, Nikhil M. Parekh, Suriyan Radha, Subramanian Sakthinathan, Te-Wei Chiu, Chelladurai Karuppiah
Summary: This research focused on producing non-toxic and environmentally friendly silver nanoparticles through the biological reduction using plant leaves extract of Cassia Alata, a medicinal plant in India. Various techniques were used to analyze the biogenic synthesis of nanoparticles, and the reaction conditions were adjusted to achieve optimal formation of silver nanoparticles. The resulting nanoparticles exhibited stable, spherical, and crystalline structures. They also demonstrated superior catalytic properties in the reduction of MB compared to other organic compounds.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Jitrawan Noisak, Thitirat Charoonsuk, Satana Pongampai, Nattapong Pinpru, Phakkhananan Pakawanit, Wanwilai Vittayakorn, Tosapol Maluangnont, Te-Wei Chiu, Naratip Vittayakorn
Summary: The cold sintering process (CSP) is a revolutionary technique for low-temperature processing of ceramics and composites, enabling high-density fabrication at low temperatures. In this study, the implementation of CSP in fabricating the y-glycine-bacterial cellulose composite was successfully demonstrated, and the effect of sintering temperature and holding time on microstructure and electrical properties was evaluated.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Heng-Jyun Lei, Homg-Ming Su, Dhanapal Vasu, Yu-Feng You, Te-Wei Chiu, Naratip Vittayakorn
Summary: In this research, a CeO2 and CuCrO2 composite nanofiber was prepared for the electrochemical detection of dopamine. The composite nanofiber showed good structure and surface morphology, allowing for fast and accurate detection of dopamine concentration. The electrocatalyst exhibited a low detection limit and high sensitivity.
Article
Engineering, Multidisciplinary
Sivaramakrishnan Vinothini, Te-Wei Chiu, Subramanian Sakthinathan
Summary: In this study, a modified screen-printed carbon electrode was developed for the low-level detection of Furaltadone (FLD). The electrode exhibited improved electrocatalytic activity, low detection limit, and broad linear range for FLD detection. It was also able to detect FLD in the presence of other interfering pollutant ions, demonstrating good feasibility and repeatability.
Article
Materials Science, Multidisciplinary
Shiyi Luo, Rui Yang, Yuanjing Meng, Kristina Maliutina, Manish Singh, Te-Wei Chiu, Liangdong Fan
Summary: In this work, a one-step low temperature sintering technology was proposed to prepare doped ceria electrolyte-based solid oxide fuel cells (SOFCs) by adding 3 mol% of Li2O sintering aid. Super low temperature sintering allows the direct application of nanoporous Ni-based cermet anode and hierarchical SrNb0.1Fe0.9O3 cathode with improved catalytic activities, which improves SOFC efficiency.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Chemistry, Multidisciplinary
Zhen-Yuan Lan, Dhanapal Vasu, Yung-Chieh Liu, Yu-Feng You, Te-Wei Chiu, Po Chou Chen
Summary: A unique oxygen-phosphorus-codoped graphitic carbon nitride (O,P-GCN) was prepared through thermal decomposition of urea, oxalic acid, and ammonium phosphate, and used as a photocatalyst for the degradation of rhodamine B (RhB). O,P-GCN exhibited higher photocatalytic activity due to its nanostructure with porous properties and the doping of oxygen and phosphorus, leading to increased electron-hole pair generation and improved electron transfer efficiency. The porous nature of O,P-GCN also provided more reactive sites for the degradation of the target pollutant. The synthesis of O,P-GCN was confirmed using various analysis techniques, and its photocatalytic performance was significantly enhanced with 1 wt% oxygen and phosphorus doping, resulting in a RhB removal efficiency of 97.25%.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Engineering, Environmental
Dhanapal Vasu, Arjunan Karthi Keyan, Pichumani Moorthi, Subramanian Sakthinathan, Chung-Lun Yu, Te-Wei Chiu
Summary: The electrochemical ability and photocatalytic degradation of nimesulide drugs were studied using a "feed two birds with one seed" strategy. Heterogeneous solid-direct Z-scheme catalysts, especially graphitic carbon nitride (gCN), were explored for their potential in environmental remediation. The newly developed V/P-gCN (VP) material showed enhanced electrocatalytic and photocatalytic activity, making it a promising bi-functional catalyst for environmental applications.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Energy & Fuels
Jiajia Huang, Tong Su, Huibin Zhao, Fengjiao Li, Te-Wei Chiu, Manish Singh, Qixing Wu, Liangdong Fan
Summary: In this study, a comprehensive strategy combining nanoarchitecture synthesis, nanoparticle exsolution design, and hybrid phase assembly with multi-interfacial interaction was proposed to fabricate highly efficient Ruddlesden-Popper composite materials. The composite catalyst LSFCN-R600 showed the best OER activity and reliable performance, indicating its potential application in various reactions and energy technologies.
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.
