Article
Chemistry, Physical
Ummi Kalsum Hasanah Mohd Nadzim, Nur Hanis Hayati Hairom, Mohamad Alif Hakimi Hamdan, Mohd Khairul Ahmad, Aishah Abdul Jalil, Nurfatehah Wahyuny Che Jusoh, Sofiah Hamzah
Summary: This study focuses on the performance of different morphologies of zinc oxide nanoparticles in thiophene desulfurization. The results show that flower-like zinc oxide flakes exhibit the best performance in thiophene desulfurization. Moreover, all zinc oxide morphologies apply to pseudo-second-order models. The optimal conditions for thiophene desulfurization are pH 7, 0.05 g/L zinc oxide flakes loading, and 90 minutes of contact time.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Xuesheng Yang, Jiabao Bai, Ya Song, Huawei Yang, Lixia Yang, Liangjiu Bai, Donglei Wei, Xinxiang Cao, Hou Chen
Summary: In this study, a novel catalyst was synthesized to promote the oxidative desulfurization reaction by modulating V sites, achieving efficient activation of O2 and removal of thiophenic sulfides under mild conditions.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Omid Amiri, Farshad Beshkar, Sangar S. Ahmed, Bahzad Weso Hamad, Peshawa H. Mahmood, Ahmed Anwar Dezaye
Summary: The hierarchical flower-like Ag/Fe3O4/graphene ternary nanocomposites were successfully prepared and applied as novel nanophotocatalysts for desulfurization of thiophene under visible light illumination, showing excellent desulfurization activity within 2 hours. The photo-oxidation mechanism was explained based on active species trapping experiments, with oxidative h(+) and O·(2)- species identified as the dominant active species.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Chemical
Mohammad Ebadi, Majid Asri, Farshad Beshkar
Summary: In this study, a visible-light-driven Mo/Bi2MoO6/Bi3ClO4 heterojunction photocatalyst was fabricated via the Pechini sol-gel process, exhibiting excellent photocatalytic desulfurization performance of thiophene. The photocatalytic desulfurization mechanism was elucidated with the identification of key radicals involved in the process.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Chemistry, Applied
Fazle Subhan, Sobia Aslam, Zifeng Yan, Muhammad Yaseen
Summary: This study successfully synthesized micro-mesoporous silica (MMZ) using dissolution and self-assembly method, and improved the adsorption capacity of thiophene by enhancing active sites and structural properties. The adsorption capacity of MMZ was higher than traditional ZSM-5 materials, and the ADS activity towards thiophene can be recovered well.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Pankaj S. Sinhmar, Ashlesha Tiple, Parag R. Gogate
Summary: The study investigates a combined extractive and oxidative desulfurization approach using ultrasound and ultraviolet irradiation with additives for treatment of simulated fuel. Optimum conditions led to complete removal of thiophene, with significantly higher desulfurization achieved compared to individual ultrasound and UV methods.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Applied
Lei Chen, Zhong-Pan Hu, Jin-Tao Ren, Zheng Wang, Zhong-Yong Yuan
Summary: Mesoporous titanium phosphonates (MTP) were synthesized as support for molybdenum oxides in oxidative desulfurization (ODS) reactions. The electron-donating effect of organophosphonate ligands on Mo active sites led to high electron density, improving the efficiency and stability of ODS reactions.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Nasir Alfaraj, Kuang-Hui Li, Meshal Alawein, Chun Hong Kang, Laurentiu Braic, Nicolae Catalin Zoita, Adrian Emil Kiss, Tien Khee Ng, Boon S. Ooi
Summary: This article investigates the ultrahigh sensitivity and DUV photodetection capability of a hybrid oxide-nitride stack grown heterogeneously on a conductive ceramic crystal. It was found that the growth process of beta-Ga2O3 crystal on TiN introduced additional defects, resulting in DUV photodetectors with true solar-blind characteristics.
ADVANCED MATERIALS TECHNOLOGIES
(2021)
Article
Chemistry, Multidisciplinary
Omur E. Dagdeviren, Daniel Glass, Riccardo Sapienza, Emiliano Cortes, Stefan A. Maier, Ivan P. Parkin, Peter Grutter, Raul Quesada-Cabrera
Summary: The impact of photoinduced surface oxygen vacancies (PI-SOV) on the dynamics of hole migration in MOS films, such as titanium dioxide, was measured using time-resolved atomic force microscopy. The results show that the time constant associated with hole migration is strongly affected by PI-SOV in a reversible manner, providing insights into hole dynamics physics and enabling the development of emerging technologies.
Article
Chemistry, Physical
Caroline Pereira, Claire Semedo Da Moura, Adele Carrado, Celine Falentin-Daudre
Summary: The modification of pure titanium implant with a biomimetic polymer allows the implant to mimic the natural bone environment. Through UV irradiation technology, polymers such as PMMA and PNaSS can be grafted onto the titanium surface. This study demonstrated that functionalized titanium surfaces improved osteoblast cell spreading and mineralization.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Applied
Shingo Watanabe, Xiaoliang Ma, Chunshan Song
Summary: The research investigated thiophenic compounds adsorption over Ti0.9Ce0.1O2, revealing the essential role of surface oxygen in adsorptive desulfurization. It was found that surface Ce and Ti are important in both electron transfer from adsorbates and producing active oxygen for the oxidation of sulfur atoms. The results suggest a possible mechanism for the chemical adsorption, dissociation, and surface reaction of thiophene on Ti0.9Ce0.1O2 mixed metal oxide adsorbent.
Article
Metallurgy & Metallurgical Engineering
Bi-wen Yang, Yi-hang Hu, San-ping Liu, Xue-dong Zhang, Chao-zhen Zheng, Hai-bei Wang
Summary: The study found that oxides of vanadium and titanium have a significant impact on the properties of desulfurization slag, and adding a slag modifier can effectively reduce resulfurization reactions, adjust slag viscosity, and thereby reduce iron loss and residual slag.
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
(2022)
Article
Polymer Science
Hinane Baleh, Abdelkader Dehbi, Salah Bassaid, Abdelkader Belfedal, Ali Alsalme, Massimo Messori
Summary: In this study, composites of poly(benzaldehyde-co-thiophene) (PBT) and titanium oxide (TiO2) were prepared with varying rates of TiO2. The copolymer was synthesized using chemical oxidative polymerization and the composites were prepared by mixing PBT and TiO2 in dichloromethane for 24 h. The materials were analyzed using various techniques, and the results showed that the composites had a semi-crystalline structure. The optical properties of the composites were determined using UV/visible spectroscopy, and the electrical conductivity varied between 8.00 x 10(-8) S.cm(-1) and 3.40 x 10(-4) S.cm(-1).
JOURNAL OF POLYMER RESEARCH
(2023)
Article
Chemistry, Physical
Jenny Hui Foong Chau, Chin Wei Lai, Bey Fen Leo, Joon Ching Juan, Mohd Rafie Johan
Summary: In this study, a solar responsive composite material was successfully synthesized, showing a significant improvement in the photodegradation efficiency of acetaminophen (ATM), reaching 92.50%. The composite material exhibited high reusability.
CATALYSIS COMMUNICATIONS
(2022)
Article
Environmental Sciences
Chengxian Wang, Xin Fang, Fengbin Zhao, Yajun Deng, Xinglong Zhu, Yuchen Deng, Xiaoli Chai
Summary: High-efficiency desulfurization is crucial for the recovery and utilization of landfill gases. A nano-iron oxide desulfurization agent was prepared and its efficiency was studied in this research. The agent showed higher yield when hexadecane (HE) was used as the solvent. The desulfurization efficiency was significantly improved at temperatures of 150-200℃, reaching over 90% at 150℃. The desulfurization reaction involved chemical adsorption and catalytic decomposition, with the catalytic performance being better when more FexSy was produced during the chemical adsorption process.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)