Article
Chemistry, Physical
Fahime Abedini, Somaiyeh Allahyari, Nader Rahemi
Summary: Different amounts of BiOBr and g-C3N4 were loaded on MCM-41 to achieve efficient photo oxidation and adsorption of DBT. The optimal photocatalyst, BiOBr-C3N4/MCM-41 with 10% BiOBr, showed highest activity and lowest DBT concentration, attributed to the highest structural defects and strongest interaction. However, after four cycles, a decrease in activity was observed due to pores blockage by DBT sulfones.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Applied
Chao Wang, Wei Jiang, Hanxiang Chen, Linhua Zhu, Jing Luo, Wenshu Yang, Guangying Chen, Zhigang Chen, Wenshuai Zhu, Huaming Li
Summary: In this study, Pt nanoparticles with sizes around 4-5 nm were effectively encapsulated on vanadium pentoxide nanosheets, resulting in a catalyst with excellent catalytic aerobic oxidation performance for deep desulfurization. The catalysts were able to be reused at least seven times, showing great potential for practical applications.
CHINESE JOURNAL OF CATALYSIS
(2021)
Article
Engineering, Chemical
Jixing Liu, Lu Zhang, Jingyi Zhu, Huifang Cheng, Mingqing Hua, Hui Liu, Huaming Li, Wenshuai Zhu, Jian Liu
Summary: A series of V2O5/TiO2 catalysts with different V2O5 sizes (3-10 nm) were designed and fabricated using a citric acid-assisted hydrothermal dispersion of active metal strategy. The structure and properties of the catalysts were characterized, and their catalytic activities and reaction kinetics for the oxidative desulfurization (ODS) of dibenzothiophene (DBT) were investigated. The results showed that the V2O5 size played a crucial role in influencing the redox property and V5+/V4+ ratio of the catalysts. V2O5/TiO2-1 with the smallest V2O5 size (about 3 nm) exhibited the highest ODS activity, achieving almost 100% DBT conversion within 80 minutes at 120 degrees Celsius, due to its optimal redox property, V5+/V4+ ratio, and the lowest apparent activation energy (Ea = 43.0 kJ/mol). Increasing the V2O5 size from 3 nm to 10 nm led to a noticeable increase in Ea to 53.5 kJ/mol, resulting in a sharp decrease in the ODS activity of V2O5/TiO2-3.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Polymer Science
Houda Douba, Smain Sabour, Lakhdar Benatallah, Meriem Fizir, Ourida Mohammedi
Summary: In this study, titanium-containing MCM-41 was synthesized and used as a catalyst for the oxidation of secondary alcohol. Characterization techniques such as FT-IR, BET, XRD, SEM-EDX, and Raman spectroscopy were used to analyze the catalysts and the results showed successful insertion of Ti into the MCM-41 framework. The catalytic performance of Ti-MCM-41 and Ti/Al-MCM-41 was evaluated, with Ti directly inserted into mesoporous silica gel showing better performance and Ti/Al-MCM-41 prepared by impregnation exhibiting high catalytic activity and regeneration ability.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2023)
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
Chemistry, Multidisciplinary
Xingye Zeng, Adeyemo Adesina, Ping Li, Hanlu Wang, Rujin Zhou
Summary: Ti-containing MWW zeolite was prepared and used as a catalyst and adsorbent in an adsorptive-oxidative desulfurization system. The system achieved high conversion rate of DBT and the oxidation products of DBT were removed by Ti-MWW adsorption. The study also investigated the influence of various parameters and the recycling and regeneration performance of Ti-MWW. This work provides valuable information for the construction of solvent-free oxidative desulfurization systems.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
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
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
Franklin J. Mendez, Roylena Vargas, Joel Blanco, Yahse Rojas-Challa, Ernesto Bastardo-Gonzalez, Jorge A. Garcia-Macedo, Esneyder Puello-Polo, Joaquin L. Brito
Summary: The study investigated the reactivity of Ti-modified MCM-41-supported NiMo and CoMo catalysts, showing that the incorporation of Ti can enhance the activity and selectivity of the catalysts, potentially beneficial for destabilizing sulfur-containing molecules.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Energy & Fuels
Yang Liu, Junjie Liao, Liping Chang, Weiren Bao
Summary: This paper investigates the adsorption performance of silver-modified mesoporous materials in removing thiophenic compounds. The results show that the adsorption of thiophene by the sorbents involves S-Ag and pi complexation reactions, and the adsorption efficiency is greatly affected by benzene. XPS analysis reveals that silver interacts strongly with the carrier and forms Ag-O-Si bonds as the active centers for thiophenic compounds. The Mulliken charges of sulfur atoms have an impact on the interactions between silver and thiophene sulfur compounds.
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
Biochemistry & Molecular Biology
Ardian Nurwita, Maciej Trejda
Summary: The source of Bronsted acid centers, generated on two different mesoporous silica supports, was investigated for their application in the oxidative desulfurization of dibenzothiophene. The TPS/MCF catalyst showed excellent activity and stability under mild reaction conditions, making it a promising candidate for future applications.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Materials Science, Ceramics
Josefa Ortiz-Bustos, Isabel del Hierro, Yolanda Perez
Summary: The incorporation of iron and sulphate ions on TiO2 nanoparticles improved the catalytic performance, and a multifunctional and visible-light active photocatalyst was designed to remove pollutants from transportation fuels and water. Doping with a low amount of iron enhanced the photocatalytic performance, with the 1.2%S-0.5%Fe-TiO2 photocatalyst showing the highest activity under visible light irradiation. The improved electron charge transfer behavior of this photocatalyst was confirmed by electrochemistry measurements, and the stability and recyclability of the best photocatalyst were evaluated.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Applied
Hossein Naseri, Golshan Mazloom, Azam Akbari, Farhad Banisharif
Summary: Bimetallic Mo-M (M = Ni, Co, and Zn)/RHY supported catalysts were synthesized for oxidative desulfurization of DBT. Ni negatively influenced Mo dispersion, while Co and Zn improved it. Zn promoter allowed more active Mo species to be exposed, benefiting the ODS reaction.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Engineering, Chemical
Fahime Abedini, Somaiyeh Allahyari, Nader Rahemi
Summary: The study investigated the effectiveness and economy of using a catalyst-adsorbent for simultaneous oxidation and adsorption of sulphuric compounds in liquid fuels. The results showed that the sample with 5% MoS2 exhibited the highest degree of desulfurization.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Energy & Fuels
Yueqin Song, Xiaolong Zhou, Jin An Wang
Summary: A novel method combining chemical activation and high temperature N-2 or steam post-treatment was used to produce activated carbon for selective adsorption and separation of methane from coal-bed gases. The steam-treated samples showed significantly enhanced methane adsorption capacity and high selectivity for methane adsorption.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2021)
Article
Chemistry, Physical
Natali de la Fuente, Lifang Chen, Jin An Wang, Julio Gonzalez, Juan Navarrete
Summary: The study investigated the oxygen defects, surface acidity, and catalytic activity of Keggin-type phosphotungstic acid dispersed on SBA-15 mesoporous catalyst. It was found that the catalyst contained both Lewis and Bronsted acid sites, and the amount of these sites varied with the calcination temperature, correlating with the conversion of 4,6-dibenzothiophene in a model diesel using H2O2 as oxidant.
REACTION KINETICS MECHANISMS AND CATALYSIS
(2021)
Article
Chemistry, Physical
Julio Gonzalez-Garcia, Lifang Chen, Omar Campuzano-Calderon, Sara Nunez-Correa, Enrique A. Lopez-Guajardo, Jin An Wang, Alejandro Montesinos-Castellanos
Summary: The study successfully enhanced the structural properties and surface chemical composition of natural dolomite through hydrothermal and acid-thermal treatments, increasing surface area and decreasing pore size. Changes in crystalline compositions were observed using XRD analysis, and the catalytic activity was found to be related to the crystalline Ca(OH)2 concentration. This research can assist in selecting the appropriate dolomite treatment based on desired crystalline composition for specific applications.
Article
Chemistry, Physical
Jesus Miguel Ramos, Jin An Wang, Sergio Odin Flores, Lifang Chen, Ulises Arellano, Luis Enrique Norena, Julio Gonzalez, Juan Navarrete
Summary: This study reports the ultrasound-assisted hydrothermal synthesis of V2O5 dispersed on SBA-15 and Zr doped SBA-15 catalysts for DBT oxidation reaction. It found that Lewis acidity significantly affects DBT conversion and proposed two pathways for DBT oxidation reaction.
Article
Engineering, Chemical
Peng Jiang, Xue-Wen Li, Jin-An Wang, Xiao-Long Zhou
Summary: The UV/H2O2 process was effective in purifying cold-rolling emulsion wastewater by utilizing optimal conditions of 0.2mol/L H2O2 dosage, initial pH of 9.13, and UV intensity of 4.0mW/cm(2). The treatment reduced COD from 3573mg O-2/L to 67mg O-2/L, meeting Chinese discharge standards. The primary reactive radical was identified as (OH)-O-center dot, and potential degradation pathways were proposed and discussed. Operating cost was calculated as 0.115 USD/L for the best conditions.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Chemistry, Physical
Lifang Chen, Luis Enrique Norena, Jin An Wang, Roberto Limas, Ulises Arellano, Oscar Arturo Gonzalez Vargas
Summary: Using Ni/SBA-15 catalyst, hydrogen fuel and carbon nanotubes can be produced simultaneously via methane dehydrogenation, with high selectivity for hydrogen and mainly multiwall carbon nanotubes formed with different growth modes.
Article
Energy & Fuels
Ying Xiong, Xinyao Nie, Zheng Wang, Hongyang Li, Yueqin Song, Jinan Wang, Xiaolong Zhou, Lifang Chen
Summary: Two comb-type copolymers, AMAC and EMAC, were synthesized and used to investigate their effects on the non-isothermal crystallization kinetics in the MEK-toluene dewaxing process. The addition of AMAC or EMAC increased the yield of dewaxed oil and filtration rate, and slowed down the crystallization rate of paraffin. Polarizing light microscope observations showed different morphologies of crystals with the addition of AMAC and EMAC.
Article
Chemistry, Physical
Francisco Nunez, Lifang Chen, Jin An Wang, Sergio Ordin Flores, Jose Salmones, Ulises Arellano, Luis Enrique Norena, Francisco Tzompantzi
Summary: In this study, Co/ZSM-5 mesoporous catalysts with different acidity and Co loadings were prepared using mesoporous ZSM-5 as support. The results showed that the Si/Al ratio in ZSM-5 affected the surface acidity and cobalt oxide reducibility. Under optimal reaction conditions, the 10 wt% Co/ZSM-5 catalyst exhibited high biodiesel selectivity. This can be attributed to the presence of acid sites, a balanced B/L ratio, and the high reducibility of Co3O4 nanoparticles.
Article
Engineering, Chemical
Peng Jiang, Jing-jing Zhou, Qing Zhou, Fang-yuan Xiang, Jin-An Wang, Xiao-Long Zhou
Summary: This study presents an efficient method for treating wastewater with a high benzotriazole concentration, using a combinational UV/H2O2/O-3 system under basic conditions. By introducing O-3 to the UV/H2O2 system, the degradation of benzotriazole can be promoted, with the optimal conditions leading to complete removal of BTZ and a significant reduction in COD.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Engineering, Environmental
Mu He, Muhammad-Faryad Ali, Yue-Qin Song, Xiao-Long Zhou, Jin An Wang, Xin-Yao Nie, Zheng Wang
Summary: This study investigated the coke deactivation behavior of HZSM-5 zeolites with different Si/Al ratios in the n-hexane cracking reaction for 200 hours. The results showed that internal coke formed in the micropores of the zeolite initially and significantly inhibited catalytic activity, while external coke had a minor effect. The deactivation behavior differed between zeolites with low and high Si/Al ratios.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Boris Guzman-Martinez, Roberto Limas-Ballesteros, Jin An Wang, Liliana Alamilla-Beltran, Lifang Chen, Luis Enrique Norena
Summary: A high-performance and scalable lipase immobilization method using a dipping and jet break-up technique was reported for the production of microcapsule biocatalysts with an entrapped cascade of lipase enzyme. The biodiesel production via esterification/transesterification reaction using the lipase microcapsules as biocatalysts achieved a high yield and met relevant standards. The microencapsulation technique has important applications in sustainable biofuel production, food processing, and the pharmaceutical industry.
Article
Chemistry, Physical
Julio Cesar Mendez, Ulises Arellano, Silvia Solis, Jin An Wang, Lifang Chen
Summary: This study investigated the immobilization of Candida Rugosa lipase (CRL) on Ca doped Kit-6 solid through adsorption. The effects of various experimental parameters on the adsorption of CRL were studied. It was found that 0.5Ca/Kit-6 showed the highest CRL immobilization capacity and stability. In the transesterification of coconut oil to biodiesel, the CRL/0.5Ca/Kit-6 catalyst exhibited better catalytic performance under weak basic conditions.
MOLECULAR CATALYSIS
(2022)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)
