Article
Environmental Sciences
Rachida Bouallouch, Mohammed Kebir, Noureddine Nasrallah, Faouzi Saib, Atef El Jery, Lotfi Khezami, Mohamed Trari
Summary: The study found that chromate has the highest concentration in wastewater industries, and using spinel p-CoAl2O4 as a photocatalyst can effectively reduce Cr(VI) pollution. The optimal reduction efficiency of Cr(VI) is higher under low acidic conditions; the hetero-system CoAl2O4/ZnO can significantly enhance photocatalytic activity.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Mohamed E. Mahmoud, Mohamed F. Amira, Seleim M. Seleim, Magda E. Abouelanwar
Summary: A new nanocatalyst ZrSiO4@NPANI@nZVCu was designed and assembled for the reduction of nitroanilines, demonstrating nZVCu as the active center responsible for electron transfer. The reaction rate constants were determined at different temperatures, with pH also identified as a key factor in the catalytic reduction process of NAs.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Applied
Zhichao Shang, Yong Yu, Hang Yang, Zhongxiang Yang, Yang Xiao, Xiaohong Wang
Summary: The Cu/CeO2 nanoporous composite material was prepared using a one-step and energy-saving method known as solution combustion synthesis (SCS). The phase composition, surface morphology, and optical characteristics of Cu/CeO2 were investigated. The study found that the SCS products consisted of cubic fluorite CeO2 and Cu. The CeO2 synthesized via SCS exhibited a porous structure due to the generation and escape of gas during the reaction, with mesopores nested in the walls of large pores. XPS analysis revealed an increase in oxygen vacancy concentration in CeO2 with increasing Cu concentration. The presence of Cu greatly enhanced the catalytic activity of CeO2, and the 30 wt% Cu/CeO2 composite material exhibited the highest photocatalytic activity for the degradation of methyl orange (MO), approximately 4.3 times that of pure CeO2. UV-vis diffuse reflectance spectroscopy showed a reduction in the semiconductor band gap with the addition of metallic Cu, leading to enhanced photocatalytic activity. Free radical trapping experiments identified $O-2- and h(+) as the main active species in the photocatalytic degradation of MO. Based on the results, a proposed mechanism for the enhanced photocatalysis of Cu/CeO2 nanomaterials was suggested, involving the porous structure providing more reactive sites and channels for mass transfer, and the presence of metallic Cu improving oxygen vacancy concentration in CeO2 and promoting charge-carrier separation, thereby enhancing the photocatalytic performance of Cu/CeO2.
JOURNAL OF RARE EARTHS
(2023)
Article
Engineering, Chemical
Minaz Makhania, Sreedevi Upadhyayula
Summary: A heterogeneous model of the foam unit cell was prepared using BCC geometry to study reaction and diffusion in foam-based catalysts. Kinetic expressions like general order kinetics with an order of 0.5 and Langmuir-Hinshelwood-Hougen-Watson (LHHW) kinetics for isothermal and nonisothermal catalyst wall cases were studied using finite element method-based simulations. It was observed that by using foam diffusion length and a modified Thiele modulus, the effectiveness factor vs Thiele modulus relationship assumes a form similar to that of Aris' relationship.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Applied
Felipe Ketzer, Fernanda de Castilhos
Summary: In this study, commercial USY Zeolite was utilized as a catalyst for the esterification of oleic acid with methyl acetate. Kinetic analysis revealed that the chemical reaction is the rate-controlling step, with the Pseudo-homogeneous (PH) model showing the best fit. Thermodynamic investigation indicated that the reaction is endothermic and endergonic, with USY zeolite effectively lowering the activation energy.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Engineering, Environmental
Maryam Pirmoradi, James R. Kastner
Summary: The study investigated the aqueous phase hydrogenation kinetics of furfural to various compounds over a Pd-TiO2 catalyst on activated carbon, revealing the role of titanium in creating a metal-acid catalyst and promoting specific compound synthesis. By applying a Langmuir-Hinshelwood model, the kinetic data was fitted to predict reaction rates for different compounds, showing good agreement with the experimental data. The model also provided insights into adsorption constants, as well as intrinsic rate parameters, indicating its potential for reactor design in aqueous phase hydrogenation.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Geovana Silva Marques, Luiza Helena Pinto Domingues, Vinicius Fitz Bregenski, Giovana Goncalves Dusi, Fabiane Hamerski, Vitor Renan da Silva
Summary: This study investigated the kinetics of esterification between acetic acid and n-propanol catalyzed by sulfated zirconia. The effects of temperature, reactant molar ratio, catalyst loading, and mass transfer on acetic acid conversion were evaluated. Different models were used to determine the reaction mechanism, with the Eley-Rideal model showing the best fit. The reusability and performance of the catalyst were also reported.
REACTION KINETICS MECHANISMS AND CATALYSIS
(2023)
Article
Chemistry, Applied
Young-Sang Cho, Thi Thu Hien Nguyen, Hoai Han Nguyen, Quang Hai Tran
Summary: In this study, effectiveness factor of hollow cylindrical pellets with finite length was derived by assuming Langmuir-Hinshelwood (LH) kinetics. The key factors affecting the effectiveness factor were investigated, and the reaction parameters in LH kinetics were determined by comparing the modeling results with experimental data. This study is of great importance for the design and optimization of catalytic reactors.
Article
Chemistry, Applied
Joseph W. Gregory, Yuyan Gong, Yisong Han, Steven Huband, Richard I. Walton, Volker Hessel, Evgeny V. Rebrov
Summary: Au/TiO2 catalytic coatings were developed for photocatalytic applications. Gold nanoparticles with a diameter of 3-5 nm were synthesized using the citrate method and sodium borohydride as a reducing agent. The nanoparticles were characterized by various techniques. The photocatalytic activity of the coatings was studied in the reduction of 4-nitrophenol with green LEDs, and the activity of the gold nanoparticles was preserved in the coatings.
Article
Engineering, Electrical & Electronic
Abbas Norouzi, Alireza Nezamzadeh-Ejhieh, Razieh Fazaeli
Summary: In this study, coupled copper(I) oxide-zinc oxide nanoparticles were characterized and tested for their photocatalytic activity towards methylene blue. The Cu2O-ZnO composite showed efficient photodegradation and photomineralization of MB molecules, with the 1:2 Cu2O:ZnO mole ratio exhibiting the highest activity.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Engineering, Environmental
Julie Hot, Erick Ringot, Lounes Koufi, Alexandra Bertron
Summary: Real-life experiments were conducted in a 10m3 chamber to study the abatement of nitrogen monoxide. Two models, a three-flow model and a four-flow model, were used to characterize leakage flow rate and photocatalytic oxidation of NO, respectively. Parameters for the rate law were identified using a standardized lab-scale reactor and the experimental results were correctly fitted with finite differences integration.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Water Resources
Srijita Basumallick
Summary: This paper reports the aggregation behavior of humic acid (HA) in the presence of silver nanoparticles. The study used dynamic light scattering (DLS) measurement to observe the different sizes of aggregates formed by HA in the presence of silver nanoparticles. The results were explained by the Langmuir-Hinshelwood adsorption model, suggesting the important roles of hydrogen bonding and hydrophobic interactions in the formation of HA aggregates.
APPLIED WATER SCIENCE
(2022)
Article
Engineering, Chemical
Dmitry Yu. Murzin
Summary: This paper investigates the cooperative kinetics of heterogeneous catalytic reactions on nanoclusters or in a nanoconfined space, including Eley-Rideal and Langmuir-Hinshelwood mechanisms as well as reaction mechanisms with two kinetically significant steps. The results show that lateral interactions between adsorbed species have an impact on the kinetic behavior of the reactions, and larger clusters and nanoconfined spaces with multiple adsorbed species exhibit different kinetic behavior compared to conventional treatments.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Engineering, Multidisciplinary
Muhammad Saeed, Karma Albalawi, Iltaf Khan, Nadia Akram, Ibrahim H. A. Abd El-Rahim, Sadeq K. Alhag, Ahmed Ezzat Ahmed, Faiza
Summary: Photocatalytic treatment of wastewater using metal oxides as photocatalysts has attracted significant attention. The efficiency of photocatalysis can be improved by separating the electrons and holes generated by photon absorption. A heterojunction between two semiconductors, such as p-n NiO-ZnO, has been developed to achieve efficient photodegradation of crystal violet dye. The synthesized heterojunction was characterized using various techniques, and its photocatalytic performance was found to be superior to pristine NiO and ZnO. Kinetic analysis of the degradation data was performed based on the Langmuir-Hinshelwood mechanism.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Qiqi Zhou, Zhiwei Huang, Meirong Huang, Wen Chen, Jiangwei Ni, Xiaomin Wu, Huazhen Shen, Huawang Zhao, Guohua Jing
Summary: This paper explores an effective strategy to enhance metal utilization and develop high-performance platinum-based catalysts for benzene catalytic combustion by introducing alkali metals. The introduction of alkali metals can transform low-activity oxidized metal atoms and clusters into active metal nanoparticles, ultimately improving benzene combustion.
APPLIED SURFACE SCIENCE
(2024)
Article
Engineering, Chemical
Maryam Sanaei-Moghadam, Mansour Jahangiri, Faramarz Hormozi
PARTICULATE SCIENCE AND TECHNOLOGY
(2019)
Article
Engineering, Chemical
Behzad Davodi, Mansour Jahangiri, Mohsen Ghorbani
PARTICULATE SCIENCE AND TECHNOLOGY
(2020)
Article
Chemistry, Multidisciplinary
Pooya Gholami, Alimorad Rashidi, Masoud Khaleghi Abbasabadi, Mahnaz Pourkhalil, Mansour Jahangiri, Nosrat Izadi
RESEARCH ON CHEMICAL INTERMEDIATES
(2020)
Article
Chemistry, Physical
Faezeh Sharifi, Mansour Jahangiri, Imran Nazir, Mulazim Hussain Asim, Pedram Ebrahimnejad, Andrea Hupfauf, Ronald Gust, Andreas Bernkop-Schnurch
Summary: Phosphorylated tyramine loaded nanoemulsion showed a mean droplet size of 43.1.7 nm and zeta potential of -8.40 mV, with a significant shift in zeta potential from -8.40 mV to +1.2 mV after cleaving phosphate moieties. The cellular uptake of zeta potential changing oily droplets was improved by 2.4-fold. Phosphorylated zwitterions could be a promising alternative as auxiliary agents for altering zeta potential in nanoemulsions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Faezeh Sharifi, Mansour Jahangiri, Pedram Ebrahimnejad
Summary: A new mPEG-chitosan/HA biopolymer was prepared as adsorbent nanoparticles for efficient drug delivery. The adsorption isotherm of SN-38 on mNPs follows Langmuir model with an adsorption capacity of 346.511 mg g(-1). The ex-vivo release of SN-38 from mNPs follows Korsmeyer-Peppas equation, indicating diffusion-controlled drug release.
JOURNAL OF THE MEXICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Narges Moslehnejad, Mansour Jahangiri, Fahimeh Vafaee, Masoud Salavati-Niasari
Summary: Ce-doped ZnO photocatalyst with different weight percentages of Cerium was synthesized and used for dye removal. The study found that the photocatalytic activity varied with the amount of Cerium doping, with 0.2% Cerium showing better performance. Optimal operational conditions were determined using central composite design, and the kinetic aspects of dye removal process were investigated.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Energy & Fuels
Fahimeh Vafaee, Mansour Jahangiri, Masoud Salavati-Niasari
Summary: In this study, ferrite nickel-silica nanocomposite was synthesized and used for the removal of DBT from model fuel through adsorption in a fixed-bed column. The synthesized nanocomposite was characterized and the effective parameters of the adsorption process were evaluated. Kinetic and isotherm models were established, and the Langmuir model showed good agreement with the experimental results.
Article
Chemistry, Inorganic & Nuclear
Fatemeh Arianpour, Mansour Jahangiri, Sadegh Abedi, Fahimeh Vafaee, Qahtan A. Yousif, Masoud Salavati-Niasari
Summary: This study solved the low efficiency issue in ethylene polymerization by using a bisupported Ziegler-Natta catalytic system for silica and nanosilica-supported catalysts, successfully preparing PE/silica nanocomposites.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Energy & Fuels
Maryam Sanaei-Moghadam, Fahimeh Vafaee, Mansour Jahangiri, Faramarz Hormozi, Makarim A. Mahdi, Masoud Salavati-Niasari
Summary: This study investigated the application of nanoparticles in the coating process. The optimized conditions resulted in a more uniform and faster crystallization of the coating when nanoparticles were added to the coating solution, improving the coating characteristics, especially the reduction in CO2 release.
Correction
Chemistry, Multidisciplinary
Fahimeh Vafaee, Samira Mandizadeh, Omid Amiri, Mansour Jahangiri, Masoud Salavati-Niasari
Article
Chemistry, Multidisciplinary
Fahimeh Vafaee, Mansour Jahangiri, Masoud Salavati-Niasari
Summary: In this study, an effective nanocatalyst NiFe2O4-PEG was successfully synthesized and applied in ultrasound assisted oxidative desulfurization for the first time. The characterization of the nanocatalyst was conducted using various analytical techniques, and central composite design was utilized to evaluate the effective variables in the UAOD process.
Article
Chemistry, Multidisciplinary
Fahimeh Vafaee, Samira Mandizadeh, Omid Amiri, Mansour Jahangiri, Masoud Salavati-Niasari
Summary: This study investigated the kinetics, equilibrium, and optimal conditions for sulfur removal using AFe(2)O(4)-silica nanocomposites, with NiFe2O4-SiO2 showing the best performance. Statistical analysis revealed an adsorbent dosage of 7.82 g per 50 ml model fuel and a contact time of 32 min to be optimal, resulting in a sulfur removal efficiency increasing from 63 to 94% with increasing NiFe2O4-SiO2 dosage.
Article
Biotechnology & Applied Microbiology
Faezeh Sharifi, Mansour Jahangiri, Pedram Ebrahimnejad
Summary: The study successfully targeted SN38 to colon tumors using a synthesized targeting polymer, delivering it to cells through nanoparticles, demonstrating superior anti-tumor efficacy.
ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY
(2021)
Meeting Abstract
Chemistry, Physical
Hamzeh Eyni, Hasan Tahermansouri, Farhoush Kiani, Mansour Jahangiri
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)
