Article
Energy & Fuels
Ze Fang, Zhiguo Zhao, Nan Li, Zhexin Zhu, Wangyang Lu, Fengtao Chen, Wenxing Chen
Summary: An environmentally friendly desulfurization technology was developed using a biomimetic catalytic system, ethanol and water solvent, achieving a high removal rate of dibenzothiophene. The research provides a new idea for the design of efficient, energy-saving, and environmentally friendly desulfurization systems.
Article
Chemistry, Multidisciplinary
Yong Wang, Lei Ren, Zifeng Li, Feng Xin
Summary: Hollow niobium oxide nanospheres were successfully synthesized using three-dimensional mesoporous carbon as a hard template, and they exhibited high catalytic activity in oxidative desulfurization.
Article
Energy & Fuels
Fina J. Lesafi, Tatiana Pogrebnaya, Cecil K. King'ondu
Summary: A novel SnO2-MoO3 catalyst was synthesized for oxidative desulfurization of fuel, showing excellent catalytic activity and reusability.
Article
Chemistry, Physical
Jingwen Li, Yanwen Guo, Junjun Tan, Bing Hu
Summary: A novel family of imidazole-based polyoxometalate dicationic ionic liquids catalysts were synthesized for efficient desulfurization of fuel oil, showing excellent desulfurization efficiency and recyclability. The possible mechanism of the ECODS process was proposed based on the catalytic performance under different conditions.
Article
Chemistry, Physical
Armin Raeisi, Alireza Najafi Chermahini, Marzieh Esmaeilzadeh Khabazi, Mohamad Mohsen Momeni, Rafael Luque, Antonio Pineda, Enrique Rodriguez Castellon, Carolina Vargas Fernandez
Summary: This investigation successfully removes sulfur-based compounds by a combination of absorptive and oxidative desulfurization processes using a series of novel Bi-based bifunctional photo electrocatalysts. The results showed that the catalysts had higher efficiency in absorptive desulfurization and better results in oxidative desulfurization. Among the catalysts, photoelectrocatalytic desulfurization performed best in dibenzothiophene removal.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Yuling Ma, Airong Li, Cheng Wang, Xingbo Ge
Summary: The loading of phosphotungstic acid on UiO-66 support improved the catalytic performance for oil desulfurization, especially when defects were present.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Fariba Mohammadi Nejati, Shahrokh Shahhosseini, Mehran Rezaee
Summary: Researchers developed a sandwich-type polyoxometalate catalyst immobilized on magnetic graphene oxide, which showed high efficiency in removing sulfur compounds under suitable conditions. The catalyst also demonstrated good reusability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Applied
Yulong Gu, Wei Xu, Yinyong Sun
Summary: The oxidative performance of MOF-808(Zr) can be enhanced through acid treatment to create defect sites, resulting in higher catalytic activity. Experimental parameters such as acid concentration and treatment time can be adjusted to optimize the reaction. The treated catalyst shows good reusability without significant loss of catalytic performance.
Article
Chemistry, Applied
Muhieddine A. Safa, Xiaoliang Ma, Rashed Bouresli, Hamza Albazzaz
Summary: The study quantitatively examined the effects of co-existing nitrogen compounds and PAH on the ODS process, revealing strong influences on the ODS rate constants of certain compounds which can be linearly correlated with the nitrogen and PAH concentrations. Analysis of nitrogen compounds in feedstocks confirmed their participation in the oxidation reaction, indicating simultaneous removal of co-existing nitrogen compounds during the ODS process. Discussions were also made on the ODS mechanism in the presence of nitrogen and aromatic compounds with oil-soluble oxidants.
Article
Engineering, Chemical
Juncong Zou, Yan Lin, Shaohua Wu, Mengjie Wu, Chunping Yang
Summary: The developed catalyst Mo/KIT-6-Ti shows excellent oxidative desulfurization performance, achieving efficient conversion of sulfides without the need for organic solvents, demonstrating great potential for practical fuel applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Inorganic & Nuclear
Abdurrashid Haruna, Zulkifli Merican Aljunid Merican, Mohd Basyaruddin Abdul Rahman, Suleiman Gani Musa, Abdullah Al-Yaari
Summary: Metal-organic frameworks (MOFs) supported with Keggin-type polyoxometalates (POMs) have been successfully developed for high-performing heterogeneous catalysts. A Keggin-type PW11Zn was encapsulated within MOF-808 using an environmentally friendly solvothermal approach. The catalyst showed excellent catalytic activity for oxidative desulfurization of dibenzothiophene (DBT) in liquid fuel oil, with a 99.4% DBT conversion and a removal capacity of 86.85%. The catalyst displayed good reusability and no significant loss in activity after eight cycles of recycling. Kinetics and thermodynamic analysis of the oxidation reaction were also conducted.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Juncong Zou, Yan Lin, Chunping Yang
Summary: Oxidative desulfurization (ODS) is a promising technology for clean fuel production, but the exceptional catalytic activity of amorphous molybdenum oxides (MoOx) remains unclear. This study reveals the crucial role of Mo-O covalency in determining the catalytic activity of amorphous MoOx. The enhanced Mo-O covalency improves the interaction between MoOx and H2O2, resulting in outstanding ODS catalytic activity.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Chemistry, Applied
Mohammad Hossein Farghadani, Vahid Mahdavi
Summary: This study successfully prepared a novel and effective bifunctional heterogeneous catalytic system for the desulfurization process by synthesizing nanorod-OMS-2 and molybdenum oxide catalysts. By controlling the composition and structure of the catalysts, highly dispersed molybdenum oxide species and strong acidic sites were achieved, resulting in improved catalytic activity and stability. The kinetics of the desulfurization reaction and the optimum conditions were investigated, providing a basis for further optimization of catalyst design.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Chemistry, Applied
Zahra Khalilian, Alireza Najafi Chermahini, Mohamad Mohsen Momeni, Jaleh Najafi Sarpiri, Majid Motalebian
Summary: TiO2 nanotube arrays were successfully synthesized and used as catalyst for oxidative desulfurization. The results showed high catalytic activity and recyclability under specific conditions.
JOURNAL OF POROUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Fang Wang, Ke Xiao, Lin Shi, Liancheng Bing, Dezhi Han, Guangjian Wang
Summary: A novel Fe(ii) porphyrin catalyst was synthesized and characterized, showing excellent catalytic activity and reusability in oxidative desulfurization. The catalyst reached a desulfurization rate of 98.4% under optimized conditions, indicating its potential for oxidative reactions. A possible mechanism for the oxidative desulfurization on FeC4Pc-HMS catalysts was proposed based on experimental results.
REACTION CHEMISTRY & ENGINEERING
(2021)
Article
Engineering, Chemical
Xuan Nui Pham, Duc Trong Pham, Ha Son Ngo, Manh B. Nguyen, Huan Doan
Summary: This study introduced the synthesis of TiO2 nanoparticles from Ilmenite mineral and their application in the preparation of C-TiO2 doped cellulose acetate (CA) nanocomposite film, which exhibited high photocatalytic activity under visible light. The results demonstrated efficient treatment of organic pollutants in wastewater, with sustained effectiveness even after multiple recycling processes.
CHEMICAL ENGINEERING COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Vuong Hoan T. Nguyen, Minh N. Nguyen, Tam T. Truong, Tien Trung Nguyen, Huan V. Doan, Xuan Nui Pham
JOURNAL OF NANOMATERIALS
(2020)
Article
Engineering, Chemical
Xuan Nui Pham, Manh B. Nguyen, Huan V. Doan
ADVANCED POWDER TECHNOLOGY
(2020)
Article
Chemistry, Multidisciplinary
Xuan Nui Pham, Manh B. Nguyen, Ha Son Ngo, Huan Doan
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2020)
Article
Chemistry, Applied
Quang Vinh Tran, Thi Hanh Truong, Tran Quang Hung, Huan Doan, Xuan Nui Pham, Nam Thi Hoai Le, Long Giang Bach, Van Tuyen Nguyen
JOURNAL OF POROUS MATERIALS
(2020)
Article
Engineering, Chemical
Manh B. Nguyen, Do Trung Sy, Vu Thi Kim Thoa, Nguyen Tuan Hong, Huan V. Doan
Summary: In this study, a nanocomposite based on bimetallic Co-Fe-BTC metal-organic framework and graphitic carbon nitride was synthesized for the first time. The nanocomposite exhibited excellent photocatalytic activity under sunlight irradiation and effectively degraded the organic dye RY-145 in wastewater.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Engineering, Chemical
Hoa T. Nguyen, Huan Doan, T. Thanh-Bao Nguyen, Xuan N. Pham
Summary: In this study, a facile and cost effective green synthesis method was used to synthesize silver nanoparticles (Ag-NPs)-modified graphitic carbon nitride (Ag-g-C3N4) and halloysite nanotubes (HNTs). The synthesized Ag-g-C3N4@HNTs exhibited enhanced photocatalytic performance due to the effective separation of photogenerated electrons and superoxide radicals. This study demonstrates the development of novel semiconductors with effective photoactivity from inexpensive resources.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Giang T. T. Pham, Hoa T. Vu, Tham Thi Pham, Nguyen Ngoc Thanh, Van Ngo Thuy, Hung Quang Tran, Huan V. Doan, Manh B. Nguyen
Summary: This study synthesized and characterized ZnO-Ag@AgBr/SBA-15 composites using natural halloysite clay. The materials exhibited visible light absorption and showed superior catalytic performance compared to other composites. The ZnO-Ag@AgBr/SBA-15 photocatalyst demonstrated high potential for phenol red degradation in real-world wastewater treatment applications.
Article
Chemistry, Physical
Charles D. Brewster, Lui R. Terry, Huan V. Doan, Sebastien Rochat, Valeska P. Ting
Summary: Encapsulating sulfur in single-walled carbon nanotubes enhances the hydrogen adsorption capacity by modifying the electronic properties. Experimental results showed that the S@SWCNT composites can adsorb more hydrogen per unit specific surface area and exhibit improved hydrogen uptake at lower pressures.
Article
Chemistry, Multidisciplinary
Xuan N. Pham, Van-Tai Vu, Hong Van T. Nguyen, T-Thanh-Bao Nguyen, Huan Doan
Summary: Researchers have successfully synthesized a nanocomposite of silver indium sulfide, which is based on a highly porous metal-organic framework, and demonstrated its excellent catalytic activity under visible light irradiation. This study provides a new pathway for developing new semiconductor materials for water protection.
NANOSCALE ADVANCES
(2022)
Article
Chemistry, Multidisciplinary
Emily J. Luke, Jason Potticary, Lui R. Terry, Huan Doan, Roemer Hinoplen, Sam Cross, Valeska P. Ting, Sven Friedemann, Simon R. Hall
Summary: In this study, nanostructured high-temperature superconductors YBa2Cu3O6+delta and Bi2Sr2CaCu2O8+delta were successfully synthesized using three solution-based approaches with a melamine formaldehyde sponge as a sacrificial template. The modified Pechini method produced YBa2Cu3O6+delta samples with a superconducting transition temperature of 92 K and a specific surface area of 4.22 m(2) g(-1), while Bi2Sr2CaCu2O8+delta samples exhibited superconductivity at 86 K and a specific surface area of 9.62 m(2) g(-1) using the same method. The porosity of the sponges was determined to be 82% for YBa2Cu3O6+delta and 78% for Bi2Sr2CaCu2O8+delta using Hg porosimetry.
NANOSCALE ADVANCES
(2022)
Article
Chemistry, Multidisciplinary
Manh B. Nguyen, Xuan Nui Pham, Huan Doan
Summary: Integration between conventional semiconductors and porous materials can enhance electron-hole separation, improving photocatalytic activity. A heterostructure constructed between vanadium pentoxide (V2O5) and mesoporous SBA-15 using inexpensive halloysite clay shows excellent catalytic performance in oxidative desulphurisation. The development of new catalysts from widely available natural minerals with high stability and operation in natural light offers the potential for producing fuel oils with ultra-low sulphur content.
Article
Chemistry, Physical
Huan V. Doan, Hoa Thi Nguyen, Valeska P. Ting, Shaoliang Guan, Jean-Charles Eloi, Simon R. Hall, Xuan Nui Pham
Summary: The introduction of heterostructures to graphitic carbon nitrides can enhance the activity of visible-light-driven catalysts for efficient water treatment of toxic pollutants. By constructing a complex material from oxygen-doped g-C3N4 and MIL-53(Fe) metal-organic framework, a novel multi-walled nanotube structure was formed to improve interfacial charge transfer and enhance separation efficiency of photochemical electron-hole pairs, leading to a narrower bandgap energy, higher photocurrent intensity, and excellent catalytic performance for environmental remediation.
FARADAY DISCUSSIONS
(2021)
Editorial Material
Chemistry, Physical
Matthew Addicoat, Thomas D. Bennett, Lee Brammer, Gavin Craig, Chinmoy Das, William Dichtel, Huan Doan, Austin M. Evans, Jack Evans, Andrew Goodwin, Satoshi Horike, Jianwen Jiang, Stefan Kaskel, Masako Kato, Susumu Kitagawa, Atsushi Kobayashi, Simon Krause, Christophe Lavenn, Jet-Sing M. Lee, Anthony E. Phillips, Thomas M. Roseveare, Rochus Schmid, Mohana Shivanna, Dumitru Sirbu, Shohei Tashiro, Valeska P. Ting, Monique A. van der Veen, Benjamin Wilson, Pu Zhao
FARADAY DISCUSSIONS
(2021)
Article
Chemistry, Multidisciplinary
Huan V. Doan, Ka Ming Leung, Valeska P. Ting, Asel Sartbaeva
Summary: This research systematically studied a series of six chabazite zeolites obtained through exchanging the parent chabazite with cations of different valences and atomic radii. It was found that the differences in valence and size between extra-framework cations significantly affect the abundance of these cations positioned in the framework, resulting in differing nitrogen sorption ability in the synthesised chabazite zeolites. These findings contribute to better understanding of how the zeolite counter-cation influences the ability of CHA material to selectively sequester and separate gases using the trapdoor mechanism.