Article
Chemistry, Physical
Bingyu Lei, Neil Robertson
Summary: The immobilised TiO2 mesocrystals were prepared on sanded glass substrates via a solution synthesis of immobilised precursor, followed by a thermal treatment triggering a topotactic conversion reaction. The obtained mesocrystals possessed anatase nanoparticles with high surface area and co-exposed {10 1}/{0 0 1} facets, as well as large overall particle size and strong binding to the substrate inherited from the immobilised precursor. These unique structural features make the material a promising candidate as a highly efficient and separable photocatalyst. The thermal treatment parameters were also shown to be crucial for adjusting the structural or surface properties and thus the photocatalytic performance of the immobilised TiO2 mesocrystals.
APPLIED SURFACE SCIENCE
(2023)
Article
Multidisciplinary Sciences
Jonathan S. Trimble, Rebecca Crawshaw, Florence J. Hardy, Colin W. Levy, Murray J. B. Brown, Douglas E. Fuerst, Derren J. Heyes, Richard Obexer, Anthony P. Green
Summary: The ability to program new modes of catalysis into proteins using genetic code expansion methodology has led to the development of photoenzymes that operate through triplet energy transfer catalysis. This allows for versatile reactivity in organic synthesis that is not possible with current biocatalysis methods. The study demonstrates the successful installation of a genetically encoded photosensitizer into a protein scaffold, resulting in a photoenzyme that can perform cycloadditions with high efficiency and selectivity. The photoenzyme outperforms small-molecule catalysts by being able to operate under aerobic conditions and at ambient temperatures. This research opens up new possibilities for excited-state chemistry in protein active sites and provides a foundation for the development of enantioselective photocatalysts.
Article
Engineering, Environmental
Shengnan Xu, Gang Xiao, Zishuai Wang, Yaoqiang Wang, Ziwei Liu, Haijia Su
Summary: By embedding TiO2@g-C3N4 into chitosan, a highly reusable and visible-light-driven CTGM nanocomposite membrane is synthesized, showing enhanced photoactivity and efficient degradation of multiple toxic water pollutants.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Sedat Yurdakal, Sidika Cetinkaya, Vincenzo Augugliaro, Giovanni Palmisano, Jacinto Sa, Erik Lewin, Corrado Garlisi
Summary: TiO2 catalysts modified with acidic or alkaline solutions and then platinized were used for partial photocatalytic oxidation of 3-pyridinemethanol, showing that Pt loading significantly improves activity and alkaline-treated samples further enhance after platinization. Photocurrent measurements demonstrate an increase in active sites after platinization and alkaline/acid treatment for TiO2 photocatalysts.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Review
Engineering, Chemical
Zhengbiao Peng, Guichao Wang, Behdad Moghtaderi, Elham Doroodchi
Summary: Microreactors with millimetric internal dimensions offer precise control over temperature, flow and reaction, providing excellent system performance in terms of overall mixing, transport of heat and material, and preventing thermal degradation or explosive evolution. Among these, slurry Taylor flow based microreactors have gained popularity for their unique features, such as advanced three-phase contacts and plug flow condition with low pressure drop.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Engineering, Environmental
Zhengya Dong, Stefan D. A. Zondag, Matthias Schmid, Zhenghui Wen, Timothy Noel
Summary: This study describes the development of an ultrasonic milli-reactor to handle challenging solid-containing transformations, showcasing its efficacy in a photochemical oxidation reaction. Ultrasound irradiation improves liquid mixing, gas-liquid mass transfer, and ensures resuspension of settled particles, while enhancing photon absorption by the semiconductor catalyst.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Nejc Rozman, Peter Nadrah, Renaud Cornut, Bruno Jousselme, Marjan Bele, Goran Drazic, Miran Gaberscek, Spela Kunej, Andrijana Sever Skapin
Summary: The study demonstrates that co-catalysts can enhance the efficiency of TiO2 photocatalysts, especially in the photocatalytic degradation of isopropanol and electrochemical water-splitting reactions. Among them, platinum-containing samples show the best HER activity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Vishal Burungale, Chaewon Seong, Hyojung Bae, Pratik Mane, Sang-Wan Ryu, Soon-Hyung Kang, Jun-Seok Ha
Summary: The efficient cobalt-phosphate decorated TiO2-Cu2O heterojunction photoanode was successfully prepared using hydrothermal and electrodeposition methods, and characterized by various techniques. The optimized Cu2O layer and further modification with a co-catalyst on the TiO2Cu2O heterojunction photoanode showed significant enhancement in photocurrent density.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Michael Schwarze, Steffen Borchardt, Marvin L. L. Frisch, Jason Collis, Carsten Walter, Prashanth W. W. Menezes, Peter Strasser, Matthias Driess, Minoo Tasbihi
Summary: Four commercial titanium dioxide photocatalysts were immobilized on steel plates and their performance in phenol degradation under UV-LED irradiation was investigated. The best result was obtained with the P90/UV/H2O2 system, achieving 100% degradation and around 70% mineralization after 3 hours of irradiation. The study highlights the importance of water quality for the photocatalytic performance.
Article
Chemistry, Multidisciplinary
Sarka Drdova, Marianna Giannakou, Fuze Jiang, Luchan Lin, Deeptanshu Sivaraman, Rita Toth, Thomas Graule, Artur Braun, Jan Ilavsky, Ivan Kuzmenko, Jing Wang
Summary: Atomization and spraying methods are compared for the immobilization of TiO2 dispersions onto fibrous filter media. The spray gun and spray atomization methods showed the best photocatalytic performance, while the spray-drying method had the lowest efficiency.
FRONTIERS IN CHEMISTRY
(2022)
Article
Energy & Fuels
Umer Younas, Awais Ahmad, Aftab Islam, Faisal Ali, Muhammad Pervaiz, Aimon Saleem, Muhammad Waseem, Ahmed Muteb Aljuwayid, Mohamed A. Habila, Salman Raza Naqvi
Summary: In this study, a WO3/TiO2/V2O5 catalyst was synthesized and characterized for the degradation of O-NP, MB, and MO pollutants. The results showed that the synthesized nanocomposite exhibited excellent photocatalytic potential, with degradation rates of up to 76%, 86%, and 86% for MB, MO, and O-NP, respectively.
Article
Chemistry, Multidisciplinary
Xiangze Du, Yong Peng, Josep Albero, Dan Li, Changwei Hu, Hermenegildo Garcia
Summary: This study investigated the photocatalytic decarboxylation of octanoic acid using a series of modified TiO2 catalysts to produce mixtures of n-heptane and tetradecane. The optimal NaBH4 treatment was found to enhance the photocatalytic activity, leading to almost complete conversion of octanoic acid and high selectivity towards n-heptane and tetradecane. These results demonstrate the potential of photocatalytic decarboxylation for the production of synthetic fuels from biomass under mild conditions.
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
Engineering, Environmental
Hayat Khan, Mohamed Gar Alalm, Marc Lalonde-Lavoie, Marcela Frias Ordonez, Marta Sartirana, Alessia Giordana, Giuseppina Cerrato, Claudia L. Bianchi, Daria Camilla Boffito
Summary: Ce-doped TiO2 showed good performance in the photocatalytic degradation of NOx and ethanol under visible light. Ce0.8T catalyst exhibited the lowest bandgap and the highest degradation rate among all prepared catalysts.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
Martina Sciarretta, Mariam Barawi, Cristina Navio, Victor A. de la Pena O'Shea, Matias Blanco, Jose Aleman
Summary: This study presents the immobilization of TiO2 nanoparticles on graphene acid (GA) and investigates the resulting material's photocatalytic activity in the synthesis of 1,3,4-oxadiazoles. The GA-TiO2 composite exhibits enhanced photoactivity compared to bare TiO2 and demonstrates recyclability and stability. The efficient synthesis of a variety of oxadiazoles highlights the optimal performance of this multifunctional photocatalytic material.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Applied
Osmin Aviles-Garcia, Jaime Espino-Valencia, Arisbeht Mendoza-Zepeda, Kingsley Donkor, Sharon Brewer, Rubi Romero, Reyna Natividad
Summary: In this study, the degradation of beta-blocker metoprolol was achieved through photocatalysis and photo-Fenton catalyzed by doped TiO2. The addition of Cu/TiO2 showed the highest degradation and mineralization extent, while doping also reduced the energy band gap of TiO2.
Article
Environmental Sciences
Jose Juan Garcia-Garcia, Rosa Maria Gomez-Espinosa, Reyna Natividad Rangel, Rubi Romero Romero, Gabriela Roa Morales
Summary: This study focused on the efficiency of a new material in removing arsenic, showing that chitosan supported onto modified polypropylene membrane has a good removal effect, mainly due to a chemisorption process.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Lourdes Hurtado, Abhinav Mohan, Ulrich Ulmer, Reyna Natividad, Athanasios A. Tountas, Wei Sun, Lu Wang, Boeun Kim, Mohini M. Sain, Geoffrey A. Ozin
Summary: In this study, the enhanced light penetration and mass transfer efficiency of photocatalytic foams for converting CO2 to CO were reported. A metallic foam with uniformly coated photoactive indium oxide hydroxide nanorods was used to evaluate the photochemical and thermochemical reverse water gas shift reaction. The results showed a significantly higher CO production rate through enhanced light penetration and a remarkably high thermochemical CO production rate. It was also demonstrated that using structured supports is critical in scaling up future photocatalytic processes.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Osmin Aviles-Garcia, Arisbeht Mendoza-Zepeda, Alejandro Regalado-Mendez, Jaime Espino-Valencia, Sandra L. Martinez-Vargas, Rubi Romero, Reyna Natividad
Summary: In this study, glycerol was oxidized to glyceraldehyde, formaldehyde, and formic acid by photocatalysis using copper-doped TiO2 as catalyst. The optimized reaction conditions resulted in high selectivity and formation rate of the products.
Article
Chemistry, Multidisciplinary
Lourdes Hurtado, Osmin Aviles, Sharon Brewer, Kingsley K. Donkor, Rubi Romero, Rosa Maria Gomez-Espinosa, Oscar Alvarado, Reyna Natividad
Summary: This study investigated the catalytic activity of Al/Cu interlayered pillared clays for the degradation and mineralization of paracetamol. The results showed that the Al/Cu pillared clays could completely remove paracetamol without the need for acidic conditions or high catalyst concentrations, and exhibited a high mineralization rate. The study also proposed a reaction pathway for the oxidation of paracetamol molecules and assessed the stability and reusability of the catalyst.
Article
Green & Sustainable Science & Technology
Claudia Alanis, Liliana Ivette Avila Cordoba, Gustavo Alvarez-Arteaga, Rubi Romero, Alejandro Padilla-Rivera, Reyna Natividad
Summary: This study evaluates the environmental impacts of biodiesel production from waste cooking oil using different assessment strategies. The results show that using iron salt as the catalyst precursor can reduce the carbon footprint and negative environmental effects of biodiesel production.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Electrochemistry
Alejandro Regalado-Mendez, Juliana Zavaleta-Avendano, Ever Peralta-Reyes, Reyna Natividad
Summary: The degradation efficiency of chloroquine phosphate (CQ) was investigated in a flow-by electrochemical reactor (FBER). The optimal conditions for maximum degradation efficiency were found to be an initial pH of 5.38, current density of 34.4 mA cm(-2), and liquid flow rate of 1.42 L min(-1), resulting in a COD removal efficiency of 51.6% and mineralization efficiency of 53.1%. The pseudo-zero-order kinetic model was shown to fit the data well with a kinetic constant of 13.14 mg L-1 h(-1). The total operating cost was 0.47 US$ L-1.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2023)
Review
Engineering, Chemical
Montserrat Ceron Ferrusca, Rubi Romero, Sandra Luz Martinez, Armando Ramirez-Serrano, Reyna Natividad
Summary: This article reviews the classification of lipidic feedstocks and catalysts for biodiesel production. It discusses the pros and cons of different processes and feedstocks, with a focus on waste cooking oil (WCO) as a sustainable alternative. The article also explores advances in the study of bifunctional catalysts, which can simultaneously esterify free fatty acids (FFA) and triglycerides in WCO.
Article
Engineering, Environmental
Ever Peralta-Reyes, Diego Vizarretea-Vasquez, Reyna Natividad, Aitor Aizpuru, Edson Robles-Gomez, Claudia Alanis, Alejandro Regalado-Mendez
Summary: The electrochemical reforming of glycerol for hydrogen production was optimized using a response surface methodology. The study found under specific conditions, maximum hydrogen production and minimum carbon dioxide emissions were achieved, demonstrating successful parameter optimization.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Deysi Amado-Pina, Gabriela Roa-Morales, Mayela Molina-Mendieta, Patricia Balderas-Hernandez, Rubi Romero, Carlos E. Barrera Diaz, Reyna Natividad
Summary: An electro-peroxone (EP) process was conducted using a BDD electrode reactor to mineralize 4-Chlorophenol (4-CPh). The efficiency of EP was compared with ozonation (O-3) and electro-oxidation (EO) processes. The results showed that EP had the highest oxidation power and could completely remove TOC and eliminate phytotoxicity. Analysis of by-products and ion concentrations provided insights into the reaction pathway for the mineralization of 4-CPh.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Violeta Maricruz Garcia-Orozco, Ivonne Linares-Hernandez, Reyna Natividad, Patricia Balderas-Hernandez, Claudia Alanis-Ramirez, Carlos E. Barrera-Diaz, Gabriela Roa-Morales
Summary: Solar-photovoltaic electrocoagulation was used to treat wastewater from a chocolate industry, with various parameters studied including anodic material, pH, and current density. The results showed that the aluminium system exhibited the best performance in organic matter removal, followed by copper and zinc systems.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Xinping Zhang, Yuxin Guo, Xiaoyang Liu, Shun-Yu Wu, Ya-Xuan Zhu, Shao-Zhe Wang, Qiu-Yi Duan, Ke-Fei Xu, Zi-Heng Li, Xiao-Yu Zhu, Guang-Yu Pan, Fu-Gen Wu
Summary: This study develops a nanotrigger HCFT for simultaneous photodynamic therapy and light-triggered ferroptosis therapy. The nanotrigger can relieve tumor hypoxia, induce enhanced photodynamic reaction, and facilitate the continuation of Fenton reaction, ultimately leading to lethal ferroptosis in tumor cells.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Olumide Bolarinwa Ayodele, Toyin Daniel Shittu, Olayinka S. Togunwa, Dan Yu, Zhen-Yu Tian
Summary: This study focused on the semihydrogenation of acetylene in an ethylene-rich stream using two alloyed Pt catalysts PtCu and PtCo. The PtCu catalyst showed higher activity and ethylene yield compared to PtCo due to its higher unoccupied Pt d-orbital density. This indicates that alloying Pt with Cu is more promising for industrial relevant SHA catalyst.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Guowei Chen, Wen-Cheng Chen, Yaozu Su, Ruicheng Wang, Jia-Ming Jin, Hui Liang, Bingxue Tan, Dehua Hu, Shaomin Ji, Hao-Li Zhang, Yanping Huo, Yuguang Ma
Summary: This study proposes an intramolecular dual-locking design for organic luminescent materials, achieving high luminescence efficiency and performance for deep-blue organic light-emitting diodes. The material also exhibits unique mechanochromic luminescence behavior and strong fatigue resistance.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Joren van Stee, Gregory Hermans, Jinu Joseph John, Koen Binnemans, Tom Van Gerven
Summary: This work presents a continuous solvent extraction method for the separation of cobalt and nickel in a millifluidic system using Cyphos IL 101 (C101) as the extractant. The optimal conditions for extraction performance and solvent properties were determined by investigating the effects of channel length, flow rate, and temperature. The performance of a developed manifold structure was compared to a single-channel system, and excellent separation results were achieved. The continuous separation process using the manifold structure resulted in high purity cobalt and nickel products.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Yan Xu, Jingai Jiang, Xinyi Lv, Hui Li, Dongliang Yang, Wenjun Wang, Yanling Hu, Longcai Liu, Xiaochen Dong, Yu Cai
Summary: A programmed gas release nanoparticle was developed to address the challenges in treating diabetic infected wounds. It effectively removes drug-resistant pathogens and remodels the wound microenvironment using NO and H2S. The nanoparticle can eliminate bacteria and promote wound healing through antibacterial and anti-inflammatory effects.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Tong Xia, Zhilin Xi, Lianquan Suo, Chen Wang
Summary: This study investigated a highly efficient coal dust suppressant with low initial viscosity and high adhesion-solidification properties. The results demonstrated that the dust suppressant formed a network of multiple hydrogen bonding cross-linking and achieved effective adhesion and solidification of coal dust through various chemical reactions.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jinzhi Cai, Zhenshan Li
Summary: A density functional theory-based rate equation was developed to predict the gas-solid reaction kinetics of CaO carbonation with CO2 in calcium looping. The negative activation energy of CaO carbonation close to equilibrium was accurately predicted through experimental validation.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jianxiong Chen, Fuhao Ren, Ningning Yin, Jie Mao
Summary: This study presents an economically efficient and easily implementable surface modification approach to enhance the high-temperature electrical insulation and energy storage performance of polymer dielectrics. The self-assembly of high-insulation-performance boron nitride nanosheets (BNNS) on the film surface through electrostatic interactions effectively impedes charge injection from electrodes while promoting charge dissipation and heat transfer.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Zijian Li, Zhaohui Yang, Shao Wang, Hongxia Luo, Zhimin Xue, Zhenghui Liu, Tiancheng Mu
Summary: This study reports a strategy for upgrading polyester plastics into value-added chemicals using electrocatalytic methods. By inducing the targeted transfer of *OH species, polyethylene terephthalate was successfully upgraded into potassium diformate with high purity. This work not only develops an excellent electrocatalyst, but also provides guidance for the design of medium entropy metal oxides.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Navneet Singh Shekhawat, Surendra Kumar Patra, Ashok Kumar Patra, Bamaprasad Bag
Summary: This study primarily focuses on developing a sulphur dyeing process at room temperature using bacterial Lysate, which is environmentally friendly, energy and cost effective, and sustainable. The process shows promising improvements in dye uptake and fastness properties.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Dengjia Shen, Hongyang Ma, Madani Khan, Benjamin S. Hsiao
Summary: This study developed cationic PVC nanofibrous membranes with high filtration and adsorption capability for the removal of bacteria and hexavalent chromium ions from wastewater. The membranes demonstrated remarkable performance in terms of filtration efficiency and maximum adsorption capacity. Additionally, modified nanofibrous membranes were produced using recycled materials and showed excellent retention rates in dynamic adsorption processes.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Xiaoyan Wang, Zhikun Wang, Ben Jia, Chunling Li, Shuangqing Sun, Songqing Hu
Summary: Inspired by photosystem II, self-supported Fe-doped NiCoP nanowire arrays modified with carboxylate were constructed to boost industrial-level overall water splitting by employing the concerted proton-coupled electron transfer mechanism. The introduction of Fe and carboxyl ligand led to improved catalytic activity for HER and OER, and NCFCP@NF exhibited long-term durability for overall water splitting.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Pengyao Yu, Ge Yang, Yongming Chai, Lubomira Tosheva, Chunzheng Wang, Heqing Jiang, Chenguang Liu, Hailing Guo
Summary: Thin LTA zeolite membranes were prepared through secondary growth of nano LTA seeds in a highly reactive gel, resulting in membranes with superior permeability and selectivity in gas separation applications.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Baiqin Zhou, Huiping Li, Ziyu Wang, Hui Huang, Yujun Wang, Ruichun Yang, Ranran Huo, Xiaoyan Xu, Ting Zhou, Xiaochen Dong
Summary: The use of machine learning to predict the performance of specific adsorbents in phosphate adsorption shows great promise in saving time and revealing underlying mechanisms. However, the small size of the dataset and insufficient detailed information limits the model training process and the accuracy of results. To address this, the study employs a fuzzing strategy that replaces detailed numeric information with descriptive text messages on the physiochemical properties of adsorbents. This strategy allows the recovery of discarded samples with limited information, leading to accurate prediction of adsorption amount, capacity, and kinetics. The study also finds that phosphate uptake by adsorbents is generally through physisorption, with some involvement of chemisorption. The framework established in this study provides a practical approach for quickly predicting phosphate adsorption performance in urgent scenarios, using easily accessible information.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Paula Alejandra Lamprea Pineda, Joren Bruneel, Kristof Demeestere, Lisa Deraedt, Tex Goetschalckx, Herman Van Langenhove, Christophe Walgraeve
Summary: This study evaluates the use of four esterified fatty acids and three vegetable oils as absorption liquids for hydrophobic VOCs. The experimental results show that isopropyl myristate is the most efficient liquid for absorbing the target VOCs.
CHEMICAL ENGINEERING JOURNAL
(2024)