Article
Environmental Sciences
Enrique C. Peres, Matias Schadeck Netto, Evandro S. Mallmann, Luis F. O. Silva, Edson L. Foletto, Guilherme L. Dotto
Summary: Geopolymers were synthesized from fly and bottom ashes of a thermoelectrical power plant in Brazil, aiming to add value to waste materials. It was found that geopolymers produced by conventional methods had higher surface area and total pore volume, while ultrasound-assisted synthesis showed better adsorption potential in some cases. Both methods demonstrated good adsorption performance for heavy metals like Ag+, Cu2+, Co2+, and Ni2+, with removal percentages exceeding 90%.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Tumeletso Lekgoba, Freeman Ntuli, Thabo Falayi
Summary: The study investigates the adsorptive properties of coal fly ash in removing copper and nickel from waste water. It was found that the removal process follows the Pseudo Second Order kinetic model, and the predominant mechanism of adsorption is chemisorption.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Engineering, Environmental
Xinyuan Zhan, Gunvor Marie Kirkelund
Summary: The study explored the use of electrodialytic remediation (ED) as a pre-treatment to remove heavy metals from MSWI fly ash before geopolymerization. The pre-treatment increased the reactivity of Si and Si/Al ratio in fly ash. A mixture of 80% coal fly ash and 20% ED treated fly ash with 8 M NaOH was found to have optimal compressive strength in geopolymerization.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Zehua Wang, Linhao Xu, Daishe Wu, Shili Zheng
Summary: The mesoporous tobermorite synthesized from fly ash showed high removal efficiency for Pb2+. The adsorption kinetic and isotherm data fit well with pseudo-second-order and Langmuir models, respectively, indicating the potential application of fly ash in treating industrial wastewater containing Pb2+.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Maria Visa, Alexandru Enesca
Summary: This study developed two zeolite structures by recycling PV glass and coal fly ash for the removal of cadmium, copper, and lead from synthetic solutions. The materials were characterized and the adsorption conditions were optimized for enhanced removal efficiency. The zeolite adsorption equilibrium data were described using Langmuir and Freundlich models, and the highest adsorption capacities were determined. This research highlights the potential of waste recycling in removing toxic heavy metals from wastewater.
Article
Engineering, Environmental
Donata Drapanauskaite, Kristina Buneviciene, Manoj Silva, Alvyra Slepetiene, Jonas Baltrusaitis
Summary: Anthropogenic solid waste can be a reactive substrate to adsorb and immobilize PO43- for enhancing sustainability. In this study, two types of calcium-rich solid waste were evaluated for their ability to adsorb PO43- from simulated wastewater streams, showing promising results. The release of heavy metals into the simulated wastewater was assessed and only one type of waste exceeded regulated concentrations.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Pan Chen, Jiamei Wu, Lu Li, Yaohui Yang, Jian Cao
Summary: A novel fly ash-based composite material, modified DTCH-MFA, was synthesized for effective removal of Pb2+, Cd2+ and AsO33- from wastewater. In a single pollutant system, the removal rates of Pb2+, Cd2+ and AsO33- by modified DTCH-MFA were significantly higher compared to unmodified FA. The maximum adsorption capacities of Pb2+, Cd2+ and AsO33- by DTCH-MFA also showed significant improvement. In the actual wastewater system, DTCH-MFA exhibited simultaneous removal of Pb2+, Cd2+ and AsO33- with high removal rates. The adsorption mechanisms were studied and found to involve electrostatic interaction and chelation reaction. The adsorption processes followed Pseudo-second-order Kinetics and Freundlich isothermal model. DTCH-MFA extended the scope of FA-based adsorbents for simultaneous adsorption of heavy metal cations and anions within a short time period.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Zhikun Zhang, Yanli Wang, Yuqi Zhang, Boxiong Shen, Jiao Ma, Lina Liu
Summary: This study investigated the stabilization behavior of heavy metals in hazardous municipal solid waste incineration fly ash (FA) using coal fly ash (CFA) as an additive via hydrothermal treatment. The results showed that most heavy metals were stabilized in the hydrothermal product, and the addition of CFA resulted in the reduction of leaching concentrations and risk assessment code (RAC) of heavy metals. The method with 30% CFA exhibited the most superior performance.
Review
Chemistry, Physical
Ayesha Gul, Nader Ghaffari Khaligh, Nurhidayatullaili Muhd Julkapli
Summary: Carbon-based nanoadsorbents, such as graphene, carbon nanotubes, and activated carbon, have unique physical and chemical properties that make them widely used in wastewater treatment. Adsorption technology is considered as one of the prominent methods for treating wastewater due to its maximum efficiency, simplicity, flexibility, eco-friendliness, and selectivity for heavy metals.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Review
Polymer Science
Ashoka Gamage, Nepali Jayasinghe, Punniamoorthy Thiviya, M. L. Dilini Wasana, Othmane Merah, Terrence Madhujith, Janardhan Reddy Koduru
Summary: Heavy metals, known for their toxic nature and ability to accumulate and magnify in the food chain, are a major environmental concern. The use of environmentally friendly adsorbents, such as chitosan (CS)-a biodegradable cationic polysaccharide, has gained attention for removing heavy metals from water. This review discusses the physicochemical properties of CS and its composites and nanocomposites and their potential application in wastewater treatment.
Article
Engineering, Environmental
Prashant Swapnil, Laishram Amarjit Singh, Chandan Mandal, Abhishek Sahoo, Farida Batool, Mukesh Meena, Pritee Kumari, Andleeb Harish, Andleeb Zehra
Summary: Nowadays, microorganisms are being utilized to remove various pollutants from wastewater, such as toxic metal ions. The challenges in coupling microbes with wastewater include the emergence of harmful elements, expensive microbial cultivation, and technical issues in industrial-scale production. Microbes serve as potential sorbents through suitable adsorption mechanisms. This review also highlights the use of photobioreactors based on microbial biofilm as an alternative technology for cost-effective biomass production in wastewater treatment.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Jingye Zhou, Kai Xia, Xin Liu, Long Fang, Hui Du, Xiaodong Zhang
Summary: The study demonstrates that modified cationic fly ash has high efficiency and capacity in adsorbing dyes, can be reused multiple times, and can avoid secondary pollution.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2021)
Article
Engineering, Chemical
Ashraff Aziz Marhoon, Siti Aishah Hasbullah, N. Asikin-Mijan, Wan Nur Aini Wan Mokhtar
Summary: Treated fly ash (TCFA) can efficiently synthesize high-purity, single-phase zeolite-X and remove Ni and V ions from aqueous solutions. The pretreatment process involves magnetic fraction separation and acid washing, followed by fusion and hydrothermal treatment to synthesize zeolites. The zeolite product exhibits high crystallinity, purity, and thermal stability, and can adsorb Ni and V through chemical adsorption mechanisms.
ADVANCED POWDER TECHNOLOGY
(2023)
Article
Environmental Sciences
Virendra Kumar Yadav, Abdelfattah Amari, Amel Gacem, Noureddine Elboughdiri, Lienda Bashier Eltayeb, M. H. Fulekar
Summary: Every year, a large amount of water is polluted by various sources, with coal fly ash (CFA) being a major pollutant. CFA contains toxic metals that contaminate water bodies through contact with water or rain. Iron oxide nanoparticles (IONPs), recovered from waste like CFA, show promise for wastewater treatment due to their low cost, recyclable nature, and magnetic property. The synthesis of IONPs from CFA involves three steps: extraction of ferrous materials, acidic treatment, and precipitation of iron oxides. The synthesized IONPs have a particle size of 30-70 nm and a purity of 90-93%. They can efficiently remove heavy metals from wastewater, particularly Pb and Cr ions from CFA solutions, with removal efficiency ranging from 40-70%.
Article
Construction & Building Technology
Yanli Wang, Jiao Ma, Longbang Qing, Lina Liu, Boxiong Shen, Shuhao Li, Zhikun Zhang
Summary: This study investigated the carbonation pretreatment of municipal solid waste incineration fly ash (FA) with different carbonate solutions to improve its recyclability by converting it to geopolymers with coal fly ash (CFA). The results showed that the carbonate solutions changed the mineral phases of FA and affected the properties of geopolymers. Geopolymers prepared with Na-FA exhibited the best performance, with a denser microstructure and better compressive strength.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Chemistry, Physical
Alexandru Enesca, Luminita Isac, Anca Duta
APPLIED CATALYSIS B-ENVIRONMENTAL
(2015)
Article
Chemistry, Physical
Maria Visa, Luminita Isac, Anca Duta
APPLIED SURFACE SCIENCE
(2015)
Article
Thermodynamics
Ion Visa, Anca Duta, Mihai Comsit, Macedon Moldovan, Daniela Ciobanu, Radu Saulescu, Bogdan Burduhos
APPLIED THERMAL ENGINEERING
(2015)
Article
Materials Science, Ceramics
Mazabalo Baneto, Alexandru Enesca, Ciprian Mihoreanu, Yendoube Lare, Koffi Jondo, Kossi Napo, Anca Duta
CERAMICS INTERNATIONAL
(2015)
Article
Chemistry, Physical
Laura Maria Manceriu, Aline Rougier, Anca Duta
JOURNAL OF ALLOYS AND COMPOUNDS
(2015)
Article
Environmental Sciences
Maria Visa, Luminita Andronic, Anca Duta
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2015)
Article
Engineering, Environmental
Maria Visa, Cristina Bogatu, Anca Duta
JOURNAL OF HAZARDOUS MATERIALS
(2015)
Article
Chemistry, Physical
Anca Duta, Maria Visa
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2015)
Article
Materials Science, Multidisciplinary
Younes Mouchaal, Alexandru Enesca, Ciprian Mihoreanu, Abdelbacet Khelil, Anca Duta
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2015)
Article
Materials Science, Multidisciplinary
Younes Mouchaal, Alexandru Enesca, Ciprian Mihoreanu, Abdelbacet Khelil, Anca Duta
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2015)
Article
Engineering, Chemical
Cristina Bogatu, Dana Perniu, Anca Duta
Article
Chemistry, Physical
M. Duta, D. Perniu, A. Duta
APPLIED SURFACE SCIENCE
(2014)
Article
Physics, Applied
E. Gyoergy, A. Perez del Pino, C. Logofatu, A. Duta, L. Isac
JOURNAL OF APPLIED PHYSICS
(2014)
Article
Materials Science, Composites
Mihaela Cosnita, Cristina Cazan, Anca Duta
JOURNAL OF COMPOSITE MATERIALS
(2014)
Article
Chemistry, Multidisciplinary
A. Datcu, L. Duta, A. Perez del Pino, C. Logofatu, C. Luculescu, A. Duta, D. Perniu, E. Gyoergy
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)