Article
Engineering, Environmental
Mingyang Song, Xiaolei Hu, Tianhang Gu, Wei-xian Zhang, Zilong Deng
Summary: In this study, a nanocellulose-based composite, NC-nZVI, was developed for efficient removal of nickel. The nZVI was anchored to nanocellulose through a liquid-phase reduction method, resulting in varied morphology and dispersion status. Among the developed composites, CNC-nZVI showed the most evenly distributed nZVI particles. The binding between NC and nZVI was achieved through hydrogen bonds, electrostatic attractions, coordination-covalent bonds, and steric hindrance. The CNC-nZVI composite exhibited significantly higher removal efficiency of Ni2+ compared to bare nZVI, and remained effective under a wide pH range and in the presence of interference ions like NO3-, Cl-, and Ca2+. The observed hollow-out structure and Tafel extrapolation curves indicated that CNC activated diffusion path and accelerated electronic transfer from nZVI. The superior removal performance of NC-nZVI and the abundance of raw materials make it a promising material for environmental remediation and wastewater treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Meng Yang, Feng Xie, Shan-Shan Li, Chu-Hong Lin, Xing-Jiu Huang, Wen-Qing Liu
Summary: A novel zero-valent iron nanomaterial (Fe-0@Fe2MnO4) was synthesized for ultrasensitive electrochemical detection of As(iii). The study revealed that by tailoring the surficial atomic and electronic structures of the material, the redox potential can be altered for controlling sensitivity and selectivity in electroanalysis. Additionally, the catalytic kinetics was modeled and simulated, showing the strong influence of oxidation potential on sensitivity.
CHEMICAL COMMUNICATIONS
(2021)
Article
Green & Sustainable Science & Technology
Ernesto Flores-Rojas, Denhi Schnabel, Erick Justo-Cabrera, Omar Solorza-Feria, Hector M. Poggi-Varaldo, Luz Breton-Deval
Summary: This study synthesized and characterized nanoscale zero-valent iron supported on diatomaceous earth for decolorization treatment of acid blue dye, showing efficient removal of dye and non-toxicity to zebrafish embryos within 24 hours of exposure. However, prolonged exposure led to developmental defects in embryos, indicating potential risks associated with the treatment.
Article
Green & Sustainable Science & Technology
Clarissa Settimi, Daniela Zingaretti, Simone Sanna, Iason Verginelli, Igor Luisetto, Antonello Tebano, Renato Baciocchi
Summary: This study prepared Fe-Cu and Fe-Ni bimetals by disc milling for the dehalogenation of trichloroethylene vapors. The results showed that Fe-Ni bimetals performed better in terms of TCE removal. The findings of this study suggest that ZVI-based bimetals produced by disc milling are effective in the dehalogenation of TCE vapors under partially saturated conditions.
Article
Energy & Fuels
Agija Stanke, Valdis Kampars
Summary: The transportation sector's significant contribution to greenhouse gas emissions has prompted the search for sustainable and renewable alternatives to fossil fuels. This study focused on the synthesis of mesoporous Fe/SBA-15 catalysts using natural clays as binders and promoters. The results showed that catalysts agglomerated with kaolin exhibited better performance, and catalysts in powdered form had higher CO conversion rates.
Article
Environmental Sciences
Anqi Wang, Jun Hou, Qichen Xu, Jun Wu, Baoshan Xing
Summary: This study employed a green synthesis method to prepare zero-valent iron (ZVI) with improved dispersity and stability. The use of tannins (TA) as reducing agents resulted in ZVI with a higher specific surface area and reactive sites compared to chemically prepared ZVI. TA also enhanced the adsorption and degradation of pollutants and provided an oxidative degradation continuous source. The presence of TA accelerated the conversion of Fe and delayed the formation of passivation layer, thereby enhancing the antioxidant capacity of ZVI.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Chemical
You-Sheng Lin, Kuen-Song Lin, Yi-Fan Lai, Ndumiso Vukile Mdlovu, Chi-Jung Chang, U-Ser Jeng, Syeda Fareesa Hassan
Summary: This study used spherical chain-shaped nanophase zero-valent-iron (nZVI) with different metal loadings to simulate wastewater, forming bimetallic nanocatalysts (BNC). The Cu removal efficiency was highest in nZVI@Cu-800. The size of nZVI was found to increase by 181% at 55 degrees C compared to 25 degrees C. XANES/EXAFS spectra analysis revealed the presence of Cu2O in nZVI@Cu, indicating a reductive degradation mechanism. Overall, this study demonstrates that nZVI and BNCs can effectively convert harmful 4-NP into useful and high-value 4-AP.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Engineering, Environmental
Dandan Dong, Oh Kyung Choi, Jae Woo Lee
Summary: Both zero valent iron (ZVI) and nano-scaled ZVI (nZVI) can be used for biomethanation of CO2 under anaerobic conditions, but ZVI shows more effective and stable CO2 conversion with less loss.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Anju Rose P. Puthukkara, Sunil T. Jose, Dinoop S. Lal
Summary: The article discusses the green strategy of plant-mediated synthesis of ZVI nanoparticles, along with the related stabilization methods and application scope, with a focus on the research of phytogenic ZVI nanoparticles for water pollution remediation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Tan Phat Chau, Kathirvel Brindhadevi, Ramakrishnan Krishnan, Mansour Ali Alyousef, Hesham S. Almoallim, Niwooti Whangchai, Surachai Pikulkaew
Summary: Zerovalent Iron Nanoparticles (MC-ZVI NPs) were synthesized from Musa coocinea peel extract using a novel synthesis technique, confirmed by UV-vis spectroscopy. The chemical and structural characterization of MC-ZVI NPs were performed using FTIR, SEM, and DLS techniques. The synthesized MC-ZVI NPs showed antimicrobial efficacy against bacteria and fungi, as well as free radical scavenging activity.
ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Chemical
Yufeng Du, Min Dai, Iffat Naz, Xiangying Hao, Xixi Wei, Rong Rong, Changsheng Peng, Imran Ali
Summary: In the present research, zero-valent iron (ZVI) synthesized by carbothermal reduction method was studied for its formation mechanism and application as a catalyst for ciprofloxacin degradation. The experimental parameters including pH, Fe@BC dosage, PS concentration, and temperature on ciprofloxacin degradation were thoroughly investigated. Results showed that Fe@BC has excellent catalytic performance, removing 90.78% of ciprofloxacin within 120 min. Free radical quenching experiments confirmed the reaction mainly occurs on the Fe@BC surface.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Environmental Sciences
Chao Chen, Jianguo Liu, Chao Gen, Qin Liu, Xuetao Zhu, Wenzhi Qi, Fan Wang
Summary: This study introduces a novel process for synthesizing zero-valent iron/biochar using wood waste and iron mud, and highlights the superior performance of Fe-0-BC-1200 in removing rhodamine B due to the generation of more Fe-0 particles at higher temperatures. The removal mechanism involves both physical adsorption of biochar and redox reactions of Fe-0, with the additional benefit of copper reduction in the iron mud promoting the oxidation of iron and degradation of RB.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Applied
Christopher M. A. Parlett, Hamidreza Arandiyan, Lee J. Durndell, Mark A. Isaacs, Antonio Torres Lopez, Roong J. Wong, Karen Wilson, Adam F. Lee
Summary: The article demonstrates a method for continuous flow synthesis of SBA-15 at high yield at 80 degrees C using a simple tube reactor. The resulting SBA-15 exhibits excellent textural properties and far higher productivity than previously reported in batch or flow synthesis.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Engineering, Environmental
Shambhu Kandel, Yelena P. Katsenovich, Daria Boglaienko, Hilary P. Emerson, Tatiana G. Levitskaia
Summary: The removal of TcO4 by Fe-0 under oxidative conditions is affected by the initial pH, with the fastest removal rate observed at pH(i) 7 and the slowest at pH(i) 10.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Applied
Wenlan Cai, Xiaoyan Ni, Fanyong Meng, Lin Sun, Runwei Wang, Sen Lin
Summary: The acid-free synthesis of Ga-containing SBA-15 mesoporous materials allows for tuning their morphological and acidic properties. Ga-SBA-15 exhibits high acid amount and adjustable morphology due to the presence of dispersed bending particles. The improved interparticle-type mesoporosity of Ga-SBA-15 provides highly accessible active sites for large molecules. Ga-SBA-15 also shows a shift from Bro center dot nsted-type acidity to Lewis-type acidity.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Engineering, Environmental
Clara Faria, Barbara C. Ricci, Ana F. R. Silva, Miriam C. S. Amaral, Fabiana Fonseca
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2020)
Article
Engineering, Chemical
Everton Gripa, Alyne M. Costa, Juacyara C. Campos, Fabiana da Fonseca
Article
Polymer Science
Aline M. F. Linhares, Cristiano P. Borges, Fabiana V. Fonseca
Article
Environmental Sciences
Anna Danielli da Fonseca Ferreira, Deborah Regina Bispo Coelho, Rafael Victor Gomes dos Santos, Kleby Soares Nascimento, Fabricio de Andrade Presciliano, Felipe Pereira da Silva, Juacyara Carbonelli Campos, Fabiana Valeria da Fonseca, Cristiano Piacsek Borges, Silvio Edegar Weschenfelder
Summary: The study found that photoperoxidation treatment before microfiltration can effectively increase oil removal efficiency and reduce membrane fouling, especially in oil/water emulsions with viscosifier. Additionally, higher salt concentration can promote fouling resistance and improve permeate quality.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Meliza Jennifer da Costa Fonseca, Jessica Rodrigues Pires da Silva, Cristiano Piacsek Borges, Fabiana Valeria da Fonseca
Summary: Synthetic hormone 17 alpha-ethinylestradiol (EE2) is difficult to remove completely in wastewater, advanced processes can reduce its concentration, but at the cost of increased total cost.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Engineering, Chemical
Larissa L. S. Silva, Wael Abdelraheem, Mallikarjuna N. Nadagouda, Ana Maria Rocco, Dionysios D. Dionysiou, Fabiana Fonseca, Cristiano P. Borges
Summary: A novel microwave-based method was developed for in-situ cross-linking/polymerization of polyacrylic acid onto hydrophilic polyvinylidene fluoride membranes, showing faster polymerization and synthesis with excellent physical properties. Detailed surface characterization revealed pores of the upper surface were occupied with PAA molecules, and nano zero-valent-iron decorated PVDF membranes demonstrated catalytic activity for the degradation of bisphenol A. The study highlighted the advantages of microwave technique in preparing composite membranes with improved physical properties for water treatment applications.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Abdon Parra, Mario Noriega, Lidia Yokoyama, Miguel Bagajewicz
Summary: In this study, the design of reverse osmosis systems for desalination of water at different concentrations was explored, along with the impact of coupling reverse osmosis with a pressure-retarded osmosis unit on economics. Different configurations and scenarios were presented, showing that in the cases studied, the pressure-retarded osmosis unit did not improve the economic efficiency of reverse osmosis.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Felipe Seabra D'Almeida, Roberto Bentes de Carvalho, Felipe Sombra dos Santos, Rodrigo Fernandes Magalhaes de Souza
Summary: Brazil is the second largest producer of electronic waste in the Americas, with only 10% being treated properly each year. The study suggests that universities and their communities could become important sources for electronic waste recycling. However, it also found a lack of knowledge regarding waste disposal and policies among well-educated individuals.
Article
Environmental Sciences
Ana Carina Cruz de Mello, Felipe Pereira da Silva, Everton Gripa, Andrea Medeiros Salgado, Fabiana Valeria da Fonseca
Summary: In this study, the tyrosinase enzyme was immobilized on granular activated carbon (GAC) and activated chitosan beads (ACBs), achieving efficient phenol removal from water samples. The immobilized enzyme on GAC was able to meet the regulatory requirements for phenol concentration, while the enzyme immobilized on ACBs showed higher efficiency even with higher initial phenol concentrations. Moreover, both immobilized enzymes could be reused multiple times.
Article
Chemistry, Multidisciplinary
Rafael. Q. M. Paula, Diego M. Veneu, Felipe S. dos Santos, Lidia Yokoyama, Cristiane R. Mauad
Summary: The study evaluated a vertical flow constructed wetland system for treating cattle farm wastewater. Five treatment systems were constructed in drums, with four filled with vetiver grass and one without plant. Evapotranspiration values for the wetlands ranged from 11.1% to 73.0%, and the surface application rate ranged from 0.07 to 0.13 m3m-2d-1. The samples collected during the study showed high pollutant removal rates, with average removals of 95.3% for COD, 94.2% for P-PO43-, 98.0% for N-NH4+, and 93.1% for N-NO3-.
REVISTA VIRTUAL DE QUIMICA
(2023)
Review
Engineering, Environmental
Mairely Alfonso Almaguer, Yordanka Reyes Cruz, Fabiana Valeria da Fonseca
Summary: Recalcitrant wastewaters are difficult to biodegrade and require treatment before disposal. Advanced oxidation processes (AOP) in combination with microalgae treatment offer an environmentally friendly solution, with potential for utilizing microalgae biomass from AOP pretreated wastewater for biofuel production.
ENVIRONMENTAL PROCESSES-AN INTERNATIONAL JOURNAL
(2021)
Article
Engineering, Environmental
Jessica Rodrigues Pires da Silva, Mychelle Alves Monteiro, Soraya de Mendonca Ochs, Clarissa da Silva Moura, Fabiana Valeria da Fonseca, Cristiano Piacsek Borges
Summary: The presence of high ecotoxic risk pharmaceuticals in synthetic municipal wastewater affects the microbial community profile of activated sludge, but the biomass can adapt to the introduction of these drugs. Oxidation processes using UV/H2O2 can enhance the removal of pharmaceuticals and mineralization of recalcitrant organics in biologically treated effluent.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Clara V. Faria, Gabriel C. Moreira, Alessandra P. B. Araujo, Laura E. Marques, Lara P. Oliveira, Barbara C. Ricci, Miriam C. S. Amaral, Fabiana V. Fonseca
Summary: The study demonstrated that ozonation is efficient in degrading drugs and removing micropollutants, showing great potential for application in improving water quality and reducing environmental and human health risks.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Environmental
Javier Montalvo Andia, Adriana Larrea, Jimena Salcedo, Juan Reyes, Lizandra Lopez, Lidia Yokoyama
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2020)
Article
Environmental Sciences
Luciano Dias Xavier, Lidia Yokoyama, Vanessa Reich de Oliveira, Gabriel Travagini Ribeiro, Ofelia Araujo
JOURNAL OF SUSTAINABLE DEVELOPMENT OF ENERGY WATER AND ENVIRONMENT SYSTEMS-JSDEWES
(2020)
