Article
Engineering, Environmental
Georgiana Amariei, Laura Valenzuela, Ana Iglesias-Juez, Roberto Rosal, Maria Visa
Summary: In this study, fly ash-based zeolite material with incorporated ZnO was prepared and used to functionalize glass substrates. The results showed that the ZnO-functionalized fly ash-based zeolite exhibited excellent photocatalytic activity and antimicrobial capacity, making it suitable for the removal of antibiotics and inactivation of bacteria.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Ping Jiang, Lin Zhou, Wei Wang, Na Li, Fang Zhang
Summary: This study evaluated the removal of graphene oxide from water using fly ash, and found that under optimal conditions, fly ash can effectively remove graphene oxide, reducing its negative impact on organisms and ecosystems. The experimental results demonstrated that fly ash is a good material for removing graphene oxide from aqueous solution.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Chemical
Magdalena Andrunik, Mateusz Skalny, Tomasz Bajda
Summary: Surfactant-modified zeolite materials show good sorption properties of organic compounds. Zeolites and zeolite-carbon composites from fly ash transformation can be modified to obtain functionalized sorbents for pesticides. There is still insufficient knowledge about the modification mechanisms and sorption properties of zeolites towards pesticides. Our study shows that cationic surfactants increase the adsorption of nonionic surfactants, enabling efficient removal of specific pesticides. Further research on the adsorption of pesticides is planned.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Lisandro Simao, Andreia De Rossi, Dachamir Hotza, Manuel J. Ribeiro, Rui M. Novais, Oscar R. Klegues Montedo, Fabiano Raupp-Pereira
Summary: In this research, variations in compositional and processing parameters were explored to produce zeolites-containing geopolymers from biomass fly ash wastes. The mixture composition used in the synthesis plays a crucial role in determining the nature of zeolitic crystalline phases in the geopolymeric matrix. Different NaOH concentrations resulted in varying surface areas of faujasite-type zeolites in the geopolymers.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Metallurgy & Metallurgical Engineering
Zdzislaw Adamczyk, Magdalena Cempa, Barbara Bialecka
Summary: The zeolitisation of fly ash from a Polish power plant was conducted using alkaline hydrothermal method with and without the application of ultrasound, resulting in the synthesis of two zeolitic materials with different phase compositions.
MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW
(2022)
Article
Chemistry, Physical
Ewelina Grabias-Blicharz, Rafal Panek, Malgorzata Franus, Wojciech Franus
Summary: Mechanically treated fly ash was used to provide Al and Si atoms for zeolite synthesis. The combination of mechanical activation and hydrothermal synthesis improved the dissolution of activated fly ash and the crystallization of zeolites. The obtained zeolite materials exhibited high crystallinity and a large specific surface area. This study provides important data for utilizing fly ash resources and synthesizing practical zeolites.
Article
Construction & Building Technology
Yuan Gao, Guangzhi Li, Weiqiang Chen, Xinshuai Shi, Chen Gong, Qiuhu Shao, Yanming Liu
Summary: In this study, graphene oxide (GO) coated fly ash was used to enhance the dynamic tensile behavior of cement-based matrixes, resulting in high-performance, cost-effective, and environmentally friendly cementitious composites. The test results showed that the GO-coated fly ash significantly improved the dynamic tensile properties of the cementitious composites. GO nanosheets accelerated the cement hydration process and improved the chemical composition of hydration products, leading to macroscopic nucleation and crack-bridging effects on the cement matrixes, thereby enhancing the tensile resistance.
CONSTRUCTION AND BUILDING MATERIALS
(2024)
Article
Engineering, Electrical & Electronic
Avik Sett, Lisa Sarkar, Srijeet Tripathy, Gairik Karmakar, Nimisha, Ambika Kumari, Tarun Kanti Bhattacharyya
Summary: The demand for detecting toxic arsenic ions in water is increasing due to uncontrolled industrial and human activities. In this study, a device based on reduced graphene oxide (RGO)-Fe3O4-leucine is proposed for selective detection of arsenic ions in water, offering high sensitivity and stability. The device operates at low power consumption and exhibits high sensitivity and stability towards arsenic ions, with a short response time. These results suggest that the RGO-Fe3O4-leucine-based device shows promising potential for future portable, low cost, and user-friendly arsenic ion detector systems.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Chemical
Chan Juan Li, Yao Jun Zhang, Hao Chen, Pan Yang He, Ye Zhang, Qian Meng
Summary: In this study, ABW zeolite was successfully synthesized from fly ash cenospheres and effectively applied in the removal of DFB dye. The synthesized nano-ABW zeolite showed excellent removal performance, combining the effects of adsorption and photocatalysis to efficiently degrade dyes under various conditions.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Engineering, Environmental
Yi-Jie Lin, Jyh-Cherng Chen
Summary: This study investigates the feasibility of recycling and reusing incineration fly ash for the synthesis of zeolite by alkali fusion and hydrothermal methods. The synthetic zeolite showed excellent adsorption capacity for iodine and heavy metals, while also effectively removing heavy metals and dioxins during the synthesis process. Overall, the quality of the synthetic zeolite was superior and it can be reused as an adsorbent and green material with a wide range of applications.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Review
Green & Sustainable Science & Technology
Justyna Szerement, Alicja Szatanik-Kloc, Renata Jarosz, Tomasz Bajda, Monika Mierzwa-Hersztek
Summary: Zeolites are extensively studied materials for adsorption and ion exchange with wide applications in agriculture and environmental protection. Natural zeolites are widely researched as soil conditioners and fertilizer additives in agriculture, while synthesized zeolites are gaining attention in environmental remediation. Despite numerous studies on zeolites' applications in environmental protection, their full potential is yet to be fully explored.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Qian Chen, Yimeng Zhao, Qili Qiu, Xiaobo Liu, Shunda Lin, Xuguang Jiang
Summary: Valuable zeolites, such as NaP1, are synthesized from MSWI fly ash using a modified microwave-assisted hydrothermal method. The zeolites exhibit excellent photocatalytic performance in the degradation of methylene blue, attributed to the increased surface area and active metal elements embedded in the zeolite structures.
ENVIRONMENTAL RESEARCH
(2023)
Article
Construction & Building Technology
Zhiqiang Wei, Yuangui Wang, Meng Qi, Junfeng Bi, Sen Yang, Xiaoya Yuan
Summary: This study investigated the impact of sucrose on the dispersion of graphene oxide (GO) in simulated cement pore solution and the properties of GO-fly ash-cement mortar. It was found that sucrose significantly improved the dispersion of GO and could compensate for the fluidity loss in the mortar. Additionally, the well-dispersion of GO enhanced the mechanical strength of the mortar by promoting cement hydration process and forming regular cement hydration products.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Veerendrakumar C. Khed, Vyshnavi Pesaralanka, Musa Adamu, Yasser E. Ibrahim, Marc Azab, M. Achyutha Kumar Reddy, Ahmad Hakamy, Ahmed Farouk Deifalla
Summary: This study developed a self-compacting concrete (SCC) using fly ash as a replacement material and graphene oxide (GO) as a cement additive. The effects of fly ash and GO on SCC properties were investigated and mathematical models for predicting the mechanical properties of SCC were developed. The results showed that fly ash had a positive effect on the workability of SCC while GO had a negative effect. The addition of GO to fly ash-based SCC improved its mechanical strengths.
Review
Environmental Sciences
Tongyao Ju, Yuan Meng, Siyu Han, Li Lin, Jianguo Jiang
Summary: With deeper exploration of the properties of coal fly ash (CFA), structure reconstruction has become crucial for reproduction, leading to the synthesis of various zeolites and complex materials. However, challenges remain in terms of low purity and the formation of different types of zeolites in one process.
Article
Environmental Sciences
Shefali Bhardwaj, Richa Soni, Sharad Kumar Gupta, Dericks P. Shukla
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2020)
Article
Chemistry, Analytical
Shefali Bhardwaj, Dericks P. Shukla, Aditi Halder
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2020)
Article
Materials Science, Multidisciplinary
Richa Soni, Kumar Palit, Mahesh Soni, Rudra Kumar, Satinder K. Sharma
BULLETIN OF MATERIALS SCIENCE
(2020)
Article
Environmental Sciences
Munmun Baisantry, Anil Kumar Sao, Dericks Praise Shukla
Summary: Researchers prefer band selection over feature extraction for dimensionality reduction in hyperspectral data, but feature extraction strategies also have their own advantages that cannot be ignored. A two-level PCA-based band selection framework is proposed to unify the two strategies and effectively classify spectrally similar classes in hyperspectral images.
JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING
(2021)
Article
Geochemistry & Geophysics
Munmun Baisantry, Anil Kumar Sao, Dericks Praise Shukla
Summary: In this paper, a supervised spectral-spatial band selection method is proposed, which combines the advantages of dimensionality reduction and feature extraction to improve classification accuracy.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2022)
Article
Environmental Sciences
Prem Kumar, Chandra Shekhar Dubey, Om Kumar, Shashank Shekhar, D. P. Shukla, A. L. Ramanathan
Summary: The study area in the Sutlej River basin of the western Himalaya shows distinct influences from the Indian summer monsoon and the Westerlies, with changes in precipitation and temperature impacting sediment load in the river. Seasonal variability plays a significant role in sediment transport and hydrological parameters.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Sharad Kumar Gupta, Dericks P. Shukla
Summary: Most of the research studies on landslide susceptibility mapping in the Himalayan region focus on small subsets of geomorphological features and the selected study area may not accurately represent landslide occurrences in the whole basin. This study analyzes the effect of scale in landslide susceptibility mapping and compares two widely known techniques. The results show that logistic regression performs better for larger scales, while discriminant analysis performs better for smaller scales.
ENVIRONMENTAL EARTH SCIENCES
(2022)
Article
Engineering, Electrical & Electronic
Munmun Baisantry, Anil Kumar Sao, Dericks Praise Shukla
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2020)
Article
Remote Sensing
Sharad Kumar Gupta, Dericks P. Shukla
SPATIAL INFORMATION RESEARCH
(2020)
Proceedings Paper
Geosciences, Multidisciplinary
Anmol Jalali, Dericks P. Shukla
2019 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS 2019)
(2019)
Article
Multidisciplinary Sciences
Richa Soni, Dericks Praise Shukla
