Article
Chemistry, Physical
Brahim Samir, Soumia Bakhta, Nabil Bouazizi, Zahra Sadaoui, Ouiza Allalou, Franck Le Derf, Julien Vieillard
Summary: This study successfully synthesized activated carbon loaded with iron (AC-Fe) from date stem material, which showed high efficiency in removing hazardous pollutants from water. The AC-Fe material demonstrated rapid degradation of TBO dye and its improved catalytic activity was attributed to the iron particles.
Article
Engineering, Environmental
Bruno M. Esteves, Sergio Morales-Torres, F. J. Maldonado-Hodar, Luis M. Madeira
Summary: By transforming the by-product of olive mill's operation into activated carbon and using it as support for Fe-based catalysts, effective catalytic performance was achieved in the treatment of OMW wastewater.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Beichen Zhao, Jilai Gong, Biao Song, Fan Sang, Chengyun Zhou, Chen Zhang, Weicheng Cao, Qiuya Niu, Zengping Chen
Summary: This study investigated the effects of different carbon materials on the pyrite-catalyzed Fenton oxidation of ciprofloxacin. The results showed that all three carbon materials accelerated the Fenton oxidation reaction. Activated carbon (AC) had a higher adsorption capacity for ciprofloxacin, which enhanced the pyrite-catalyzed Fenton oxidation. The addition of carbon materials promoted the production of hydroxyl radicals, favoring the degradation of ciprofloxacin.
Article
Chemistry, Multidisciplinary
Junjian An, Chenyan Hu, Yin Wang, Yi Jin, Jian Zhang, Shiju Yuan, Peng Wang
Summary: The ACF-alpha-FeOOH composite material showed superior heterogeneous Fenton-like catalytic activity compared to using alpha-FeOOH alone or in a mixture, attributed to its higher specific surface area and smaller particle size, leading to enhanced degradation efficiency of hydrotropic lignin model pollutant.
Article
Engineering, Environmental
Hao Dong, Yihui Zou, Kewei Zhang, Yuanyuan Sun, Bin Hui, Dongjiang Yang, Liping Cai, Jian Li
Summary: This study presents a rational design of urchin-like Cu2O/CuO heterojunction on a multi-channeled wood carbon as a heterogeneous catalyst, which shows enhanced catalytic activity and cyclic utilization for degradation of aromatic organic pollutants. The wood carbon-based catalysts exhibit high efficiency in degrading pollutants within a wide pH range and show excellent durability. The unique bionic structure of the Cu2O/CuO heterojunction, induced by wood carbon, plays a crucial role in the efficient degradation process.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Zhimin He, Xiaoyi Xu, Bin Wang, Zhenfei Lu, Dezhi Shi, Wei Wu
Summary: In this study, iron-loaded granular activated carbon (Fe-GAC) was prepared and used as a catalyst in the heterogeneous Fenton oxidation treatment of tetracycline (TC). The Fe-GAC/Fenton system showed a higher removal rate and lower catalyst dosage compared to the GAC/Fenton system. Additionally, Fe-GAC/Fenton exhibited higher mineralization efficiency.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Review
Chemistry, Multidisciplinary
Aleksa Kojcnovic, Blaz Likozar, Miha Grilc
Summary: This review article focuses on the heterogeneous catalytic conversion of carbon dioxide (CO2) to various compounds. It discusses the formation of alkyl carbonates, cyclic carbonates, carbamates, and carboxylic acids through carboxylation reactions. The article provides detailed elaboration on reaction conditions, catalysts, activity/selectivity, and comparison of results obtained from recent publications.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Chemistry, Multidisciplinary
Feng Chen, Xi-Lin Wu, Chenyang Shi, Hongjun Lin, Jianrong Chen, Yanpeng Shi, Shaobin Wang, Xiaoguang Duan
Summary: A novel transition metal single-atom catalyst has been developed for efficient heterogeneous Fenton-like reactions, showing excellent cyclic stability and a wide effective pH range. The catalyst accelerates the production and separation of charge carriers, enhancing the reaction performance.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Anna Lenarda, Michele Melchionna, Santeri Aikonen, Tiziano Montini, Paolo Fornasiero, Tao Hu, Michael Hummel, Juho Helaja
Summary: Activated carbons obtained from organosolv lignin were used as catalysts for aerobic oxidative dehydrogenation (ODH) reactions. The relationship between structure and activity was investigated, and the distribution of oxygen functionality was found to play a crucial role. The catalytic activity was associated with C=O surface functionalities, which was confirmed by blocking experiments. The breadth of the catalysts' applicability was explored through selected relevant ODH reactions.
Review
Environmental Sciences
Juan Casado
Summary: Advanced oxidation processes (AOPs) such as Fenton's reagent have drawbacks, but Electro-Fenton (EF) and heterogeneous Electro-Fenton (HEF) using mineral catalysts have gained attention. Mineral catalysts have advantages in efficiency, stability, affordability, and environmental friendliness, but challenges include agglomeration of nanoparticles and complex preparation techniques. The optimal pH range and dosage of catalysts and the performance of different catalysts are discussed. Further development is needed, considering the environmental impact. The article also emphasizes the need to achieve environmentally friendly and cost-effective results using real wastewaters on a pilot scale.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Alexia Batista Fortunato, Fausto Eduardo Bimbi Junior, Jeniffer Meyer Moreira, Tayna Silva Bernardino de Barros, Andre Luiz de Jesus Pereira, Magno Aparecido Gonsalves Trindade, Tiago Andre Denck Colman, Patricia Hatsue Suegama, Willyam Roger Padilha Barros, Fabio Gozzi, Claudio Teodoro de Carvalho
Summary: In this study, a new material, activated carbon decorated with magnetite nanoparticles, was used for the removal of ciprofloxacin using a photo-Fenton-based process. The results showed that the AC4/F catalyst was the most efficient material for ciprofloxacin removal at pH 2.0. The mechanism of the reaction was found to be highly dependent on the interaction between H2O2 and the hybrid surface catalyst, rather than the adsorption of ciprofloxacin.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Engineering, Environmental
Jinxiu Li, Jinxin Zhao, Bing Li, Huaitian Bu, Weizhao Yin, Sihao Lv, Jinhua Wu
Summary: In this study, activated carbon-supported goethite was used as a catalyst to effectively inactivate Escherichia coli. The heterogeneous Fenton catalyst achieved a higher inactivation efficiency compared to using goethite or activated carbon alone. The catalyst generated hydroxyl radicals to destroy the cell membrane and intracellular substances of E. coli, resulting in effective inactivation. Furthermore, the catalyst showed excellent stability and reusability, making it a promising candidate for surface water treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Bruno M. Esteves, Rita Fernandes, Sergio Morales-Torres, Francisco J. Maldonado-Hodar, Adrian M. T. Silva, Luis M. Madeira
Summary: The integration of catalytic wet peroxidation (CWPO) and direct contact membrane distillation (DCMD) was used to study the degradation of organic matter and the recovery of water in olive mill wastewater (OMW). The results showed that CWPO-treated OMW samples allowed for higher fluxes in the DCMD unit and showed higher rejections of organic matter from the feed solution. Treated OMW samples also met the legislated thresholds required for direct discharge for crops irrigation.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Jingwen Zhang, Shengjuan Shao, Xin Ding, Zhixing Li, Jiaxin Jing, Weizhou Jiao, Youzhi Liu
Summary: In this study, the high-gravity technique was employed to enhance the heterogeneous catalytic ozonation process using activated carbon as the catalyst for the removal of phenol from wastewater. The results showed that the high-gravity factors, inlet O3 concentration, liquid-gas ratio, and initial pH all had significant effects on the degradation and mineralization of phenol. The RPB/O3/AC system demonstrated higher mineralization rate compared to the bubbling reactor and RPB/O3 systems, indicating the synergistic effect of AC-catalyzed ozonation and high-gravity technique on the degradation of organic pollutants.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Emanuel F. S. Sampaio, V Guimaraes, O. S. G. P. Soares, M. Fernando R. Pereira, Carmen S. D. Rodrigues, Luis M. Madeira
Summary: A novel approach using activated carbon-based catalysts was developed for the treatment of volatile organic compounds from gaseous streams. The chemical surface properties of the catalysts were found to play a crucial role in the degradation of toluene.
Article
Chemistry, Applied
Ana M. Regadera-Macias, Sergio Morales-Torres, Luisa M. Pastrana-Martinez, Francisco J. Maldonado-Hodar
Summary: A series of adsorbents and photocatalysts were developed using agricultural residues (olive stones) as raw materials. The materials were characterized and tested for their affinity for ethylene molecules, both in terms of adsorption and photooxidation. The goal was to identify parameters that can improve the performance of the samples.
Article
Chemistry, Applied
L. T. Perez-Poyatos, L. M. Pastrana-Martinez, S. Morales-Torres, P. Sanchez-Moreno, M. Bramini, F. J. Maldonado-Hodar
Summary: Bimetallic (Fe-Cu) and reduced graphene oxide (rGO)/FeCu catalysts with different Fe-Cu ratios were developed and tested for the degradation of cyclophosphamide using the photo-Fenton process. The results showed that the rGO/FeCu catalysts exhibited a synergistic effect and the best performance was achieved with the rGO/Fe10Cu90 catalyst. This catalyst achieved 82% degradation of cyclophosphamide at natural pH and showed good stability after consecutive degradation cycles.
Article
Chemistry, Applied
Marina Godino-Ojer, Sergio Morales-Torres, Francisco J. Maldonado-Hodar, Elena Perez-Mayoral
Summary: Transition metal-carbon aerogels, such as Mo, Fe, Co, or Cu, serve as effective and selective catalysts for the synthesis of quinoxalines 1 from o-phenylenediamine 2 and α-hydroxy ketones 3, presenting a sustainable alternative to other carbon-based catalysts or MOFs. The doping metal phase, which consists of metal oxides or zero-valent metals, along with the metal loading at the carbon aerogel surface, plays a crucial role in determining the reactivity and selectivity of the catalysts. The Mo-500 catalyst exhibits the highest efficiency and selectivity, likely working through the initial oxidation of α-hydroxy ketones followed by condensation-dehydration reactions.
Article
Chemistry, Applied
Alvaro Perez-Molina, Luisa M. Pastrana-Martinez, Sergio Morales-Torres, Francisco J. Maldonado-Hodar
Summary: Graphitic carbon nitride (g-C3N4) was synthesized using different N-rich precursors, and their structures and properties were evaluated. The photocatalytic activity of g-C3N4 materials was tested for the removal of cytostatic drugs under near UV-Vis and solar-LED irradiations. The best performing photocatalysts were prepared from melamine and thiourea under near UV-Vis irradiation, and urea showed the highest activity under solar-LED irradiation. The photoactivity of g-C3N4 materials was attributed to their surface area, well-connected and condensed structures, and high surface C/N ratios with nitrogen vacancies.
Article
Engineering, Environmental
Alejandro Jimenez, Raquel Trujillano, Vicente Rives, M. A. Soria, Lufs M. Madeira, Miguel Angel Vicente
Summary: Potentially-CO2 adsorbing solids were prepared by calcination of CaAlFe hydrocalumites at 400 and 750 degrees C. The obtained solids were characterized using different techniques, and the CO2 sorption capacity was evaluated under different conditions. The presence of Fe3+ influenced the crystalline phases and the maximum CO2 sorption capacity was achieved when Fe3+ accounted for 40 mol % of the trivalent positions. The steam presence enhanced the CO2 capture during multiple sorption-desorption cycles.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
A. Catarina Faria, C. V. Miguel, Alexandre F. P. Ferreira, A. E. Rodrigues, Luis M. Madeira
Summary: In this study, nickel-substituted hydrotalcites promoted with cesium were synthesized and their dual-function ability as a high-temperature CO2 adsorbent and methanation catalyst was evaluated. It was found that materials impregnated using the direct impregnation method had a higher number of basic sites, which facilitated greater CO2 sorption. However, these materials exhibited lower selectivity towards methane, resulting in a higher CO formation. Therefore, materials prepared using the powder impregnation method were chosen for further investigation in a parametric study.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Thermodynamics
Joao Carvalho, Anabela Nogueira, Sergio Castro-Silva, Claudio Rocha, Luis M. Madeira
Summary: Olive oil production leads to environmental damage due to the spreading of pollutant effluents. To solve this problem, the steam reforming (OMWWSR) reaction was studied. Various parameters and reactor configurations were evaluated, with the autothermal reactor (ATR) and sorption-enhanced reactor (SER) showing the best results in terms of H2 production and energy consumption. Economic analysis indicated that the ATR configuration achieved a net present value (NPV) range of 7.2-9.2 Meuro and payback times (PB) of 3-2 years, while the SER configuration had an NPV range of 4.7-12.2 Meuro and PB of 5-2 years.
Article
Materials Science, Multidisciplinary
Lucia Rossi, Paula I. Villabrille, Sergio Morales-Torres, Janina A. Rosso
Summary: In this study, palladium-modified titanium dioxide powder photocatalysts were prepared using the sol-gel method. The materials were characterized and their photocatalytic activity for phenol degradation under UV and visible irradiation was tested. The optimal palladium content was determined to be 0.10% atomic Pd, achieving 100% phenol degradation under UV irradiation and 68% under visible irradiation. The immobilization of the material on glass slides using the dip-coating method was also studied, showing promising photocatalytic activity for phenol degradation using solar irradiation.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Green & Sustainable Science & Technology
J. Silva, J. C. Goncalves, C. Rocha, J. Vilaca, L. M. Madeira
Summary: This study investigated the methanation of CO2 in biogas and compared two different methanation reactors. The results showed that the cooled reactor without CO2 separation achieved a CO2 conversion rate of 91.8%, while the adiabatic reactors achieved conversion rates of 59.6% and 67.2%, resulting in an overall conversion rate of 93.0%. Economic analysis revealed negative net present worth values, indicating the need for government monetary incentives.
Article
Environmental Sciences
Mario R. C. Calaixo, Sara Ribeirinho-Soares, Luis M. Madeira, Olga C. Nunes, Carmen S. D. Rodrigues
Summary: This study focuses on the treatment of secondary urban wastewater to improve the effluent quality and reduce pathogenic microorganisms for safe reuse. Catalyst-free persulfate activation by radiation-based oxidation was applied as a treatment technology, and the potential beneficial role of bacterial competition in controlling the regrowth of harmful microorganisms was evaluated. The results showed that the treated wastewater diluted with 50% river water complied with the legislated limits for reuse.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Review
Environmental Sciences
Velma Beri Kimbi Yaah, Sajad Ahmadi, M. Jennyffer Quimbayo, Sergio Morales-Torres, Satu Ojala
Summary: The growing demand for food has led to increased use of herbicides and pesticides, with glyphosate being one of the most widely used herbicides. However, there are disagreements regarding its toxicity and environmental effects. Different countries have adopted varying measures, such as setting maximum acceptable concentrations or banning its use completely. Researchers have developed various technologies to remove glyphosate from water, but there are challenges in upscaling these technologies and limited information on their adverse effects.
ENVIRONMENTAL RESEARCH
(2024)
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)