Article
Energy & Fuels
Milena Marroccoli, Neluta Ibris, Antonio Telesca, Claudio Tregambi, Roberto Solimene, Francesca Di Lauro, Odda Ruiz de Ballesteros, Piero Salatino, Fabio Montagnaro
Summary: This study proposes the synthesis of dolomite-based binders using concentrated solar energy in fluidised bed reactors. The binders, prepared from natural dolomite and supplementary cementitious materials, demonstrated promising features in terms of technical and environmental aspects.
Article
Engineering, Chemical
Waleed Jadaa, Anand Prakash, Ajay K. Ray
Summary: The degradation kinetics of Direct Blue 15 using TiO2 catalyst was studied, showing effective degradation of the dye and fitting with a pseudo first-order kinetics model, as well as being describable by the Langmuir-Hinshelwood (L-H) model. The P25 catalyst deposited on Pyrex glass demonstrated high efficiency and reusability, with analysis on the impact of dye concentration and light intensity on kinetics validation.
Article
Chemistry, Physical
Cristian Ferreiro, Natalia Villota, Jose Ignacio Lombrana, Maria J. Rivero, Veronica Zuniga, Jose Miguel Rituerto
Summary: This study presents an efficient method for treating industrial wastewater containing aniline and benzothiazole, two substances refractory to conventional treatments. By using heterogeneous photocatalysis in a fluidised bed reactor, mass transfer is increased and reaction times are reduced, achieving high degradation and mineralization. The manganese dioxide catalyst supported on granular activated carbon with environmentally friendly characteristics shows promising results in the treatment process.
Article
Engineering, Environmental
O. J. Kramer, C. van Schaik, J. J. Hangelbroek, P. J. de Moel, M. G. Colin, M. Amsing, E. S. Boek, W. P. Breugem, J. T. Padding, J. P. van der Hoek
Summary: A sensor based on Archimedes' principle was developed to obtain the hydraulic state gradient in liquid-solid fluidised bed reactors, which can determine particle size and voidage. Experimental results indicate that the sensor is a more time-effective method for predicting the hydraulic state of the fluidised bed.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Engineering, Chemical
Ina Thakur, Anoop Verma, Banu Ormeci
Summary: An inexpensive Fe-TiO2 composite material was fabricated by mixing clay with foundry sand and fly ash, showing efficient disinfection of E. coli in water. The dual effect of photocatalysis and photo-Fenton exhibited by the composite material resulted in a faster reaction rate and significant reduction in bacterial counts. The results suggest promising potential for the application of this dual technology in water treatment.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Polymer Science
Lamine Aoudjit, Hugo Salazar, Djamila Zioui, Aicha Sebti, Pedro Manuel Martins, Senentxu Lanceros-Mendez
Summary: This study synthesized round-shaped Ag@TiO2 nanocomposites with a diameter of approximately 21 nm and a bandgap energy of 2.8 eV, which demonstrated good photocatalytic activity against metronidazole (MNZ) under solar radiation. The application of an adaptive neuro-fuzzy inference system (ANFIS) successfully predicted the effect of various parameters on the photocatalytic performance of the composite membrane, showing that the 10% Ag@TiO2/PVDF-HFP composite membrane achieved 100% removal efficiency for MNZ after 5 hours of solar radiation exposure.
Article
Chemistry, Multidisciplinary
Nasim Yavari, Omid Tavakoli, Mohammad Javad Parnian
Summary: The study investigated phenol degradation using Ag-TiO2 photocatalyst in a three-phase fluidized bed under visible irradiation, determining the optimal operational conditions and showing higher photocatalytic activity compared to commercial TiO2 catalyst.
Article
Chemistry, Physical
Abhishek Sraw, Taranjeet Kaur, Ina Thakur, Anoop Verma, Ravinder K. Wanchoo, Amrit Pal Toor
Summary: In this study, monocrotophos pesticides in water were successfully degraded by optimizing parameters such as light conditions and dopant concentration in slurry and fixed bed reactors.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Engineering, Environmental
Robert D. Franklin, Joshua A. Whitley, Adam A. Caparco, Bettina R. Bommarius, Julie A. Champion, Andreas S. Bommarius
Summary: A continuous flow packed bed reactor system was developed for asymmetric reductive amination using a chimeric amine dehydrogenase and formate dehydrogenase, achieving stable conversion and high volumetric productivities. The study examined the relationship between flow rate, conversion, and enzyme concentration, providing important insights for reaction engineering. This work represents the first stable application of AmDHs in a continuous flow reactor for the production of chiral amines.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Chemical
Chi Hieu Nguyen, Thi Tuong Van Tran, Mai Lien Tran, Ruey-Shin Juang
Summary: Ag-doped TiO2 nanomaterials were prepared using a one-step sol-gel technique. The combination of Ag with TiO2 enhanced the lifetime of photogenerated electron-hole pairs and widened the photocatalytic activity in the visible light region, leading to improved photocatalytic activity.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Environmental Sciences
Jialin Jia, Stefanos Giannakis, Dong Li, Boyin Yan, Tao Lin
Summary: A novel catalytic system was developed by anchoring Ag nanoparticles on pretreated TiO2 nano-tube arrays, leading to effective photocatalytic inactivation of Escherichia coli (E. coli). The catalyst exhibited excellent inactivation performance under the presence of peroxymonosulfate and visible light, with complete inactivation of 6-log E. coli within 60 min. The system showed high reusability and the inactivation mechanism involved both radical and non-radical pathways, with the assistance of silane coupling agent playing a pivotal role.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Ivana Grcic, Natalija Koprivanac, Gianluca Li Puma
Summary: The study validated photocatalytic reactor models for the decomposition of oxalic acid (OA) and formic acid (FA) in different configurations, and used a systematic methodology to determine intrinsic reaction kinetics rate parameters for water contaminants. This methodology can be used to predict the photocatalytic oxidation of contaminants in various experimental conditions.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Paper & Wood
Milica Milosevic, Marija Radoicic, Satoshi Ohara, Hiroya Abe, Jelena Spasojevic, Lidija Mancic, Zoran Saponjic
Summary: Novel cotton-based TiO2/Ag/TiO2 nanocomposites were developed for wastewater treatment using a fine chemical synthesis path. The nanocomposites exhibited excellent photocatalytic efficiency (> 90%) and maintained their removal efficiency after multiple reuse cycles. The presence of spherical-like colloidal TiO2 NPs (4.5 nm) and TiO2/Ag NPs (8 nm) on cotton fibers was confirmed through TEM and FESEM. The reduction of Ag+ ions on TiO2 surface was proven by the appearance of the SPR band of Ag NPs in UV/Vis spectra. The synthesized Ag NPs acted as electron traps in the double-loaded synthesized system, contributing to the improved photocatalytic performances.
Article
Chemistry, Physical
Diego Alvarez-Bustos, Felipe Sanchez-Minero, Victor Santes, Issis Claudette Romero-Ibarra, Jose Antonio de los Reyes Heredia, Reyna Rios-Escobedo, Francisco Tzompantzi-Morales, Carlos Eduardo Santolalla-Vargas
Summary: The study evaluated the photocatalytic activity of FeS-2Cl/TiO2 catalyst on visible-light degradation of phenol, showing significantly improved degradation compared to unmodified TiO2.
Article
Environmental Sciences
Ina Thakur, Anoop Verma, Banu Ormeci
Summary: In this study, a pilot-scale once-through reactor was used to investigate the inactivation of bacteria and the degradation of organic matter in municipal wastewater. A spherical iron-mediated TiO2 catalyst was fabricated using waste materials and coated with TiO2 for enhanced performance. The results showed significant reductions in bacteria and organic matter after 45 minutes of treatment, indicating the potential of waste materials for water disinfection applications.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Energy & Fuels
Siddharth Sradhasagar, Omkar Subhasish Khuntia, Srikanta Biswal, Sougat Purohit, Amritendu Roy
Summary: In this study, machine learning models were developed to predict the bandgap and its character of double perovskite materials, with LGBMRegressor and XGBClassifier models identified as the best predictors. These models were further employed to predict the bandgap of novel bismuth-based transition metal oxide double perovskites, showing high accuracy, especially in the range of 1.2-1.8 eV.
Article
Energy & Fuels
Wei Shuai, Haoran Xu, Baoyang Luo, Yihui Huang, Dong Chen, Peiwang Zhu, Gang Xiao
Summary: In this study, a hybrid model based on numerical simulation and deep learning is proposed for the optimization and operation of solar receivers. By applying the model to different application scenarios and considering multiple performance objectives, small errors are achieved and optimal structure parameters and heliostat scales are identified. This approach is not only applicable to gas turbines but also heating systems.
Article
Energy & Fuels
Mubashar Ali, Zunaira Bibi, M. W. Younis, Muhammad Mubashir, Muqaddas Iqbal, Muhammad Usman Ali, Muhammad Asif Iqbal
Summary: This study investigates the structural, mechanical, and optoelectronic properties of the BaCuF3 fluoroperovskite using the first-principles modelling approach. The stability and characteristics of different cubic structures of BaCuF3 are evaluated, and the alpha-BaCuF3 and beta-BaCuF3 compounds are found to be mechanically stable with favorable optical properties for solar cells and high-frequency UV applications.
Article
Energy & Fuels
Dong Le Khac, Shahariar Chowdhury, Asmaa Soheil Najm, Montri Luengchavanon, Araa mebdir Holi, Mohammad Shah Jamal, Chin Hua Chia, Kuaanan Techato, Vidhya Selvanathan
Summary: A novel recycling system is proposed in this study to decompose and reclaim the constituent materials of organic-inorganic perovskite solar cells (PSCs). By utilizing a one-step solution process extraction approach, the chemical composition of each layer is successfully preserved, enabling their potential reuse. The proposed recycling technique helps mitigate pollution risks, minimize waste generation, and reduce recycling costs.
Article
Energy & Fuels
Peijie Lin, Feng Guo, Xiaoyang Lu, Qianying Zheng, Shuying Cheng, Yaohai Lin, Zhicong Chen, Lijun Wu, Zhuang Qian
Summary: This paper proposes an open-set fault diagnosis model for PV arrays based on 1D VoVNet-SVDD. The model accurately diagnoses various types of faults and is capable of identifying unknown fault types.