Article
Materials Science, Ceramics
Hong Joo Lee, Seong-Joong Kim, Yeojin Kim, Hosik Park, You-In Park, Seung Eun Nam
Summary: The study focuses on the development of nanofiltration ceramic hollow fiber membranes with improved water and organic solvent permeation performance. By simplifying the manufacturing process and using appropriate materials, the newly developed membrane has shown excellent permeability and separation properties, demonstrating potential effectiveness for organic solvent nanofiltration applications.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Soomin Lim, Edoardo Magnone, Min Chang Shin, Jeong Won Kang, Kwan-Young Lee, Chang-Hun Jeong, Jung Hoon Park
Summary: The scalability of palladium-coated Al2O3 hollow fiber membranes for hydrogen separation was investigated. By testing different configurations and conditions, it was found that the advanced membrane module achieved higher hydrogen flux at higher temperatures and pressures, while maintaining high hydrogen purity.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Materials Science, Ceramics
Chunfang Wang, Yabin Zhang, Haibei Tan, Xiongfei Du
Summary: A hollow glass fibre membrane coated with ZrO2 sol by dip coating showed thin and dense coating layers with constant hydrophilicity. The coated membranes exhibited higher rejection, with the water flux and rejection varying within a narrow range and demonstrating long-term stability for efficient wastewater treatment.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
S. Mazzone, A. Campbell, G. Zhang, F. R. Garcia-Garcia
Summary: This study investigates the feasibility of on-board hydrogen production using the Ammonia Cracking Hollow Fibre Converter technology. By studying the catalytic activity of ruthenium-based catalysts on carbon xerogel during the ammonia cracking reaction, it demonstrates the potential of the hollow fibre reactor to be more efficient and require less pressure drop, volume, and catalyst loading compared to a packed bed reactor.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Chemical
Myongjin Lee, Yun Gan, Chunyang Yang, Chunlei Ren, Xingjian Xue
Summary: The research focuses on the fabrication and optimization of asymmetrical hollow fiber-supported thin film membranes, aiming to enhance stability and reduce costs for practical applications.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Noor Fadilah Yusof, Amirul Afiat Raffi, Nur Zhatul Shima Yahaya, Khairul Hamimah Abas, Mohd Hafiz Dzarfan Othman, Juhana Jaafar, Mukhlis A. Rahman
Summary: A new superhydrophobic UiO-66 metal-organic framework was successfully constructed and applied in membrane distillation for desalination. The modified membrane achieved high water flux and salt rejection with its superhydrophobic properties and porous structure. The high surface energy of UiO-66 maximized the number of accessible sites for grafting and enhanced the water vapor trapping effect.
Article
Chemistry, Physical
Jun-Yi Wang, Yen-Hsun Chi, Jin-Hua Huang
Summary: Sequential addition of hydrazine in an EDTA-free bath resulted in the fabrication of high-performance composite Pd membranes with improved selectivity and cycling stability compared to membranes made using EDTA-contained bath.
Article
Engineering, Chemical
Do Young Kim, Seungbo Ryu, Hyoung-Juhn Kim, Hyung Chul Ham, Hyuntae Sohn, Sung Pil Yoon, Jonghee Han, Tae-Hoon Lim, Jin Young Kim, Seung Woo Lee, Chang Won Yoon, Sun Hee Choi
Summary: In this study, a hydrogen-selective membrane based on asymmetric polybenzimidazole (PBI) demonstrated high permeability and permselectivity. The addition of LiCl increased polymer chain density, solution concentration, and stability of the membrane structure.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Jewel Das, Harish Ravishankar, Piet N. L. Lens
Summary: The study tested the feasibility of HFMB for the biological removal of gas-phase H2S, demonstrating high removal efficiency at different ILRs. The biotic HFMBs showed significantly higher H2S flux and mass transfer compared to abiotic controls, with attached microbial growth on the membrane surface. The results confirmed that the HFMB configuration is suitable for the biological treatment of H2S-laden waste gas.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Analytical
Boyi Wang, Takeshi Hashishin, Dzung Viet Dao, Yong Zhu
Summary: The graphite-on-paper (GOP) substrate stabilizes the detection signal of palladium-based hydrogen sensors and prevents sensitivity loss at high temperatures.
Article
Chemistry, Physical
D. Sanz-Villanueva, D. Alique, A. J. Vizcaino, R. Sanz, J. A. Calles
Summary: By doping Pd into the SBA-15 intermediate layer in composite membranes, thermal and mechanical resistances were improved, cracks were avoided, and hydrogen permeance and separation factor were increased.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Ceramics
F. Buck, O. Bunjaku, J. Caro, T. Schiestel
Summary: The influences of bulk diffusion and surface exchange on oxygen transport of (La0.6Ca0.4)(Co0.8Fe0.2)O3-6 (LCCF) hollow fiber membranes were investigated. As an outcome, two strategies for increasing the oxygen permeation were pursued. The findings suggest that the surface exchange reaction plays a key role in oxygen transport through LCCF hollow fibers.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
R. P. H. Jong, E. Dubbelman, G. Mul
Summary: The performance of Pd-functionalized titanium hollow fibre electrodes in the electro-oxidation of propylene was investigated. The pH and applied potentials significantly affected the product distribution, with Pd dissolution and PdO2 formation playing important roles.
JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Multidisciplinary
Lucy J. T. Metzroth, Elisa M. Miller, Andrew G. Norman, Sadegh Yazdi, Gerard Michael Carroll
Summary: Exploiting the high surface-area-to-volume ratio of nanomaterials to store energy in the form of electrochemical alloys shows promise, but nanoscale-specific properties affect the absorption and desorption of energy carrying equivalents. Adding an ultrathin platinum shell to the surface of palladium can greatly enhance hydrogen absorption rates and facilitate diffusion across the entire surface.
Article
Environmental Sciences
Erick Centeno Mora, Carlos Augusto de Lemos Chernicharo
Summary: This article studied the simultaneous desorption/removal of dissolved methane and sulphide from anaerobic effluents with hollow fibre membrane contactors. The results showed that using dense membrane and air as sweeping gas resulted in higher removal efficiencies, and the removal mechanism for sulphide was oxidation with oxygen from the air. In addition, using air as sweeping gas increased the dissolved oxygen concentration in the effluent.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
T. de Almeida Pires, V. L. Cardoso, F. R. X. Batista
Summary: The study found that microalgae can effectively treat cheese whey, removing harmful substances like carbon, nitrogen, and phosphorous, and also discovered that using larger inoculum sizes can lead to better treatment results.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Lidiane Pereira Bessa, Eduardo de Paulo Ferreira, Vicelma Luiz Cardoso, Miria Hespanhol Miranda Reis
Summary: In this study, Si was added as a sintering additive into SiC to produce Si-bonded SiC hollow fiber membranes for oil/water separation. The addition of Si improved the mechanical resistance and filtration efficiency of the membranes.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Engineering, Chemical
Suelen Siqueira dos Santos, Flavia de Santana Magalhaes, Carolina Moser Paraiso, Camilla Yara Langer Ogawa, Francielle Sato, Oscar de Oliveira Santos Junior, Jesui Vergilio Visentainer, Grasiele Scaramal Madrona, Miria Hespanhol Miranda Reis
Summary: This study investigated the optimal conditions for extracting anthocyanins from blackberry pomace using ultrasound-assisted extraction (UAE) methods. The study found that UAE resulted in a significant increase in total anthocyanin content compared to conventional extraction methods. The extract contained a wide range of bioactive compounds, including anthocyanins, flavonols, and phenolic acids.
JOURNAL OF FOOD PROCESS ENGINEERING
(2023)
Article
Energy & Fuels
Gustavo Machado Tottoli Ferreira, Felipe Santos Moreira, Vicelma Luiz Cardoso, Fabiana Regina Xavier Batista
Summary: In recent years, there has been significant interest in photo-fermentation-based biological hydrogen production. This paper assesses the viability of using purple non-sulfur bacteria in photo-fermentation for hydrogen production. The study shows that using a co-culture system and periodic medium renewal can greatly improve hydrogen yield and productivity.
BIOENERGY RESEARCH
(2023)
Article
Electrochemistry
Maria Zizi Martins Mendonca, Fabiano Mendonca de Oliveira, Jacqueline Marques Petroni, Bruno Gabriel Lucca, Rodrigo Amorim Bezerra da Silva, Vicelma Luiz Cardoso, Edmar Isaias de Melo
Summary: Biochar from coffee husks was used to prepare a carbon paste modified electrode (BC-CPE), which showed good performance in the simultaneous determination of Cd2+ and Pb2+ using differential pulse adsorptive stripping voltammetry (DPAdsV). The optimized BC-CPE exhibited a wide linear range, low LODs, and good stability and reproducibility. This method was successfully applied for the determination of Pb2+ and Cd2+ in water samples with good accuracy.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2023)
Article
Chemistry, Physical
Camila Magalhaes de Sousa, Vicelma Luiz Cardoso, Fabiana Regina Xavier Batista
Summary: The increasing development of industries has led to excessive exploitation of natural resources and unregulated discharge of wastewater into the environment. Heavy metals, such as chromium, are highly toxic and persistent in nature. This study investigates the synergistic photocatalytic process for the reduction and removal of Cr (VI), using niobium oxide (Nb2O5) and microalgae Chlamydomonas reinhardtii in separate phases. The results show that the proposed model provides an average total removal of 71%, 31%, and 18% for initial concentrations of 10, 30, and 50 mg/L of Cr (VI), respectively.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Microbiology
Jessica Gatti Silva, Mayara Teixeira da Silva, Roseli Mendonca Dias, Vicelma Luiz Cardoso, Miriam Maria de Resende
Summary: Crushed and ground PCB samples were characterized using XRF and SEM to evaluate copper, lead, and aluminum. XRF analysis showed 0.12% lead, 3.72% copper, and 12.73% aluminum in the PCBs. Metal solubilization experiments using Acidithiobacillus ferrooxidans showed higher total metal solubilization with adjusted inoculum pH. However, bioleaching did not result in higher metal solubilization. Sequential bioremoval experiments with mixed culture after bioleaching removed varying percentages of metals, with higher removal achieved with magnetic field application.
CURRENT MICROBIOLOGY
(2023)
Article
Environmental Sciences
Karolyna Barros Miguel, Vicelma Luiz Cardoso, Miria Hespanhol Miranda Reis
Summary: We extracted and purified pigments and bioactive compounds from annatto seeds through sequential aqueous extraction and ultrafiltration processes, which exhibited significant antioxidant activity. Ultrafiltration process is a suitable alternative for concentrating bioactive compounds from the aqueous extract, although flux decay was observed due to cake formation on the membrane surface.
WASTE AND BIOMASS VALORIZATION
(2023)
Article
Environmental Sciences
Higor Tulio Correa, William Fernando Vieira, Adalberto Pessoa Jr, Vicelma Luiz Cardoso, Ubirajara Coutinho Filho
Summary: Insects, especially Tenebrio molitor, are being explored as a potential source for the production of enzymes and biosurfactants due to their low cost and ease of production. This study investigated the production of l-asparaginase and biosurfactants using T. molitor biomass as the primary source, and the results showed promising outcomes.
WASTE AND BIOMASS VALORIZATION
(2023)
Article
Engineering, Environmental
Leticia de Moura Sousa, Felipe Santos Moreira, Vicelma Luiz Cardoso, Fabiana Regina Xavier Batista
Summary: The research evaluates the effectiveness of Rhodobacter capsulatus in removing hexavalent chromium and total chromium contamination. The study shows complete removal of hexavalent chromium, with faster removal times observed at higher light intensities. Maximum removal of total chromium occurs at 5,670 lx and low initial concentrations of hexavalent chromium. Increasing light intensity promotes cell growth and pigment production. The final pigment contents are 2.22 mg/m3 (bacteriochlorophyll) and 1.44 mg/m3 (carotenoid).
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Polymer Science
M. S. Rodrigues, F. S. Moreira, J. G. Silva, V. L. Cardoso, M. M. de Resende
Summary: This study produced and characterized heterogeneous ion-exchange membranes using the phase inversion technique. The membranes achieved high water permeability fluxes and increased ion exchange indices with the incorporation of resins and graphene oxide (GO). The addition of GO demonstrated promising results in producing membranes for the removal of metal ions from contaminated effluents.
Article
Water Resources
Amanda Carmelo da Rocha, Patricia Angelica Vieira, Vicelma Luiz Cardoso
Summary: This paper investigated the pretreatment of raw cheese whey to enhance its biodegradability in an anaerobic reactor. Coagulation/flocculation using Carica papaya seeds and Fenton/photo-Fenton processes were applied. The physicochemical parameters were characterized to assess the pollution potential of the cheese whey. The coagulation/flocculation process showed effective turbidity removal, and the Fenton/photo-Fenton processes improved the biodegradability of the cheese whey.
ENGENHARIA SANITARIA E AMBIENTAL
(2023)
Article
Environmental Sciences
Igor G. F. Costa, Stella R. F. L. Ribeiro, Lucas L. Nascimento, Antonio Otavio T. Patrocinio, Vicelma L. Cardoso, Fabiana R. X. Batista, Miria H. M. Reis
Summary: Heterogenous photocatalysis with silver-decorated titanium dioxide (TiO2) catalysts supported on alumina hollow fibers showed potential for efficient Cr(VI) photoreduction in wastewater treatment. The addition of ultrasound during the synthesis process improved the distribution of Ag nanoparticles on the TiO2 surface. Higher loading of Ag nanoparticles (30 wt%) led to significant enhancement in Cr(VI) photoreduction activity of the TiO2 catalyst. Both suspended and internally or externally supported catalysts achieved complete Cr(VI) photoreduction after prolonged reaction times. However, the externally supported catalyst exhibited superior activity, especially in the initial reuse cycles.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
