Article
Multidisciplinary Sciences
Ahmed Elmekawy, Qui Quach, Tarek M. Abdel-Fattah
Summary: In this study, multifunctional organic-inorganic nanocomposites capable of removing both organic and inorganic contaminants were synthesized using solvent assisted mechano-synthesis strategies. Two composites, Ze/AC and Ze/L/AC, were formed and characterized. Ze/L/AC exhibited higher adsorption capacity and reaction rate compared to Ze/AC for both methylene blue (MB) and Co(II) ions.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Jooeun Park, Soyeon Kim, Yuri Park, Tae-Hyun Kim, Yuhoon Hwang
Summary: Aminated covalent organic polymer (ACOP) was synthesized via a catalyst-free Schiff base reaction and used for the adsorption of anionic dyes. ACOP showed high surface area and pore size, and exhibited rapid adsorption and high adsorption capacity for methyl orange and orange G. Its presence enhanced the adsorption capacity of cationic dye and it can be applied in aqueous environmental remediation.
APPLIED SCIENCES-BASEL
(2023)
Review
Biochemistry & Molecular Biology
Juraj Bujdak
Summary: This critical review examines the literature on the adsorption of dyes on clay minerals and identifies the most serious issues. Insufficient characterization of adsorbents, the influence of impurities, and inappropriate models are highlighted as fundamental problems. The paper discusses the main processes accompanying adsorption in colloidal systems and analyzes the relationship between system stability and dye adsorption. Methodological procedures for determining and evaluating adsorption are critically reviewed. A summary of modified clay minerals and complex systems for the adsorption of organic dyes is provided. The review serves as a guide for improving characterization, determining adsorption, evaluating results, and interpreting data accurately.
Article
Chemistry, Inorganic & Nuclear
Chu Wang, Jia-Rong Li, Ying Li, Hsiung-Lin Tu, Der-Lii M. Tzou, Chih-Min Wang
Summary: NTOU-7 is a highly stable organic-inorganic hybrid indium phosphate framework with excellent performance in dye removal and RAC detection.
INORGANIC CHEMISTRY
(2021)
Article
Engineering, Chemical
Basem E. Keshta, Haojie Yu, Li Wang
Summary: A sustainable and eco-friendly method was developed to prepare the adsorbent G-MIL-101(Cr)@R for removing organic dyes from wastewater, which showed high adsorption efficiency and stability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Chemistry, Physical
Qingdong He, Xiangyu Liu, Yiwen Wang, Ke Ding, Hanwen Ge, Chengzhe Xie, Wenbo Wang, Fang Guo
Summary: In this study, a series of new heterogeneous silicate adsorbents were synthesized from waste dye-adsorbed rectorite. The effects of oxidants on the conversion efficiency and adsorption properties of the waste were investigated. The optimal adsorbent showed superior performance in adsorbing Methylene blue and Basic red 14 compared to traditional methods, and the adsorption capacity was pH-independent. The regenerated adsorbent maintained high adsorption capacity even after multiple cycles.
APPLIED CLAY SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Yanting Lyu, Taka-Aki Asoh, Hiroshi Uyama
Summary: By converting recycled cigarette filters into cellulose filters as templates for preparing inorganic oxides, this study demonstrates the potential to produce TiO2 and SiO2 materials with fibrous structures and high surface areas, which can be used for water treatment applications.
Article
Materials Science, Multidisciplinary
Orit Cohen, Kristina Vetlitsyna-Novikova, Hila Toledo, Michael S. S. Silverstein
Summary: PolyHIPEs with high internal phase emulsion (HIPEs) templates were synthesized using PIM-like linear polymers. The addition of cross-linking comonomer resulted in monoliths with low density and highly interconnected structures. These polyHIPEs showed high adsorption capacity for cationic dyes.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zi-You Zhang, Guan-Dong Zhang, Xi-Xi Sheng, Qian-Wen Ding, Yu-Zhuo Bai, Yan Su, Hong-Ke Liu, Zhi Su
Summary: Two Cu(I)-based coordination complexes were developed for the degradation of organic water pollutant methyl orange, with or without photoirradiation; they exhibited superior chemical stability and could maintain their structures after multiple degradation cycles, offering practical significance in sewage treatment.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Chemistry, Multidisciplinary
Pornsawai Praipipat, Pimploy Ngamsurach, Mantana Rattanavaru, Napatsorn Choothai, Arissara Phongsa, Pawonrat Saengwijit
Summary: This study synthesized and characterized sugarcane bagasse fly ash beads with various dopants for the removal of DR28 dye. Among them, SBFBM doped with magnesium oxide demonstrated the highest removal efficiency at 98.31%. The adsorption of the beads followed the Freundlich model and pseudo-second-order kinetic model. Increasing temperatures favored the adsorption, and the beads could be reused for multiple cycles.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Engineering, Environmental
Xiaoyu Ma, Xitao Liu, Wenbo Ren, Zhou Zhou, Chunye Lin, Mengchang He, Wei Ouyang
Summary: This study utilized waste heating pad to activate peroxymonosulfate for the degradation of roxarsone and as a functional adsorbent for the adsorption of released inorganic arsenic, achieving the resource utilization of waste and bringing economic and environmental benefits to environment remediation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Biomedical
Yamin Chai, Zhuang Liu, Yunzheng Du, Lichun Wang, Jinyan Lu, Qian Zhang, Wenyan Han, Tingting Wang, Yameng Yu, Lisha Sun, Lailiang Ou
Summary: A new class of nanocomposite adsorbents was successfully constructed with improved mechanical performance and high adsorption capacity, along with excellent biocompatibility. In vivo experiments in pig models confirmed the efficacy and biosafety of the adsorbent for direct removal of bilirubin from whole blood.
BIOACTIVE MATERIALS
(2021)
Article
Engineering, Chemical
Vinod Kumar Vadivel, Haim Cikurel, Hadas Mamane
Summary: The study demonstrated the efficient removal of indigo dye using a low-cost, nontoxic, biodegradable, and readily regenerated adsorbent. The removal of indigo dye was more effective compared to ozone- and peroxone-based advanced oxidation processes, and offers the potential for recovery of pure indigo dye from wastewater.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Agricultural Engineering
Zilong Li, Xin Wang, Wei Kuang, Cuihua Dong, Yunxiang Fan, Yuan Guo, Qiongjie Qiao, Zhengjie Zhu, Yingying Liu, Ying Zhu
Summary: This study presents the development of a biomass adsorbent containing discarded wool substrate, photocatalytic PDA coating, and zwitterionic polymer brushes. The adsorbent exhibits high adsorption capacity, rapid adsorption rate, switchable adsorption selectivity, and pH-controlled regeneration capability. The adsorbent can fulfill various needs of both static and dynamic adsorptions, and the constructed photocatalytic PDA coating allows for consecutive adsorption-degradation-regeneration utilization.
BIORESOURCE TECHNOLOGY
(2022)
Article
Chemistry, Physical
Lan Yuan, Zhaoyi Geng, Shen Zhang, Jikun Xu, Fen Guo, Bidyut Kumar Kundu, Chuang Han
Summary: This study demonstrates an efficient all-in-one removal method for chromium-containing wastewater by concurrently reducing Cr(VI) to Cr(III) and fixing Cr(III) in-situ using a nonconjugated polymer engineered ZnIn2S4 (P-ZIS) photocatalyst. The P-ZIS catalyst shows enhanced light absorption, uplifted conduction band, and accelerated charge carrier transfer compared to pure ZIS, resulting in a faster Cr(VI) reduction kinetics. Additionally, P-ZIS exhibits significantly improved in-situ adsorption capability for Cr(III), enabling total Cr elimination within a single system.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Construction & Building Technology
Manfredi Saeli, Marinelia N. Capela, Tiziana Campisi, M. Paula Seabra, David M. Tobaldi, C. Manuela La Fata
Summary: This study explored the engineering performance of bio-composite mortars made from coffee waste, finding that a small amount of coffee waste can decrease material density, reduce mechanical performance, and thermal conductivity while still maintaining acceptable values for plastering application. After a multi-criteria analysis, it was found that a mix containing 10% coffee waste was preferable. Virtual energy simulations showed that this mix had better energy performance in cold climates.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Chemistry, Physical
Ana P. F. Caetano, Joao Carvalheiras, Luciano Senff, Maria P. Seabra, Robert C. Pullar, Joao A. Labrincha, Rui M. Novais
Summary: This study produced alkali-activated fly ash-derived foams at room temperature through direct foaming using aluminum powder, and evaluated their selectivity as adsorbents for extracting heavy metals from aqueous solutions. The results showed that the foams had a higher affinity towards lead and preserved this superior affinity even in multicomponent assays.
Article
Chemistry, Multidisciplinary
Catarina C. Novo, Luciano Senff, Maria P. Seabra, Rui M. Novais, Joao A. Labrincha
Summary: This study aims to reduce the environmental impact of alkali-activated materials by replacing a commercial activator with industrial wastewater. The results show that the use of industrial wastewater decreases the workability and setting times of the materials, but does not compromise their mechanical performance.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Physical
Joao Carvalheiras, Rui M. Novais, Joao A. Labrincha
Summary: The study synthesized geopolymer monoliths using metakaolin and red mud as solid precursors, which have hierarchical porosity and suitable compressive strength, making them effective bulk-type sorbents for heavy metal removal. The use of red mud-containing geopolymer monoliths in extracting lead from wastewater was evaluated, and the results showed high lead removal capacity and successful regeneration for multiple sorption cycles. These findings contribute to the potential industrial application of clay derived geopolymers in wastewater treatment and provide a sustainable recycling strategy for red mud waste.
APPLIED CLAY SCIENCE
(2023)
Article
Green & Sustainable Science & Technology
Nuno P. F. Goncalves, Susana M. Olhero, Joao A. Labrincha, Rui M. Novais
Summary: This study presents a new management strategy for bauxite residue or red mud (RM), a hazardous waste derived from the alumina industry. Porous structures containing RM were prepared for the extraction of methylene blue (MB) from synthetic wastewater. The structures exhibited high compressive strength, high open porosity, large specific surface area, and excellent stability. Batch adsorption tests showed that the RM/MK-based structures had a high MB uptake, ranking them among the best performing geopolymer adsorbents. Furthermore, the structures were successfully regenerated and reused without compromising their performance.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Manfredi Saeli, Marinelia N. Capela, Clara Piccirillo, David M. Tobaldi, M. Paula Seabra, Francesca Scalera, Raffaella Striani, Carola Esposito Corcione, Tiziana Campisi
Summary: This paper presents the development of green bio-composite mortars by reusing spent coffee ground (SCG) in the Circular Economy approach. The addition of SCG in the mortar resulted in a more compact structure and various concrete applications. Despite a decrease in bulk density, the mechanical performance remained suitable for masonry applications. The reused bio-waste also led to a reduction in manufacturing cost and showed promising potential for energy-saving uses in buildings.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Geochemistry & Geophysics
Cleidson Alves, Fernando Pelisser, Joao Labrincha, Rui Novais
Summary: Lightweight geopolymers have been studied and used in specific applications due to their unique properties and lower environmental impacts. In this study, lightweight geopolymers using metakaolin, sodium silicate, sodium hydroxide, and hydrogen peroxide (H2O2) were evaluated. The effects of H2O2 concentration on various properties were determined, and a thermal conductivity simulation was performed for cladding panels. The results showed that mortars with a H2O2 concentration of 0.2% had a compressive strength of 18 MPa and a thermal conductivity of 0.55 W/mK, which was 60% lower than the reference composition.
Article
Chemistry, Multidisciplinary
Elena Surra, Joao Sousa, Manuela Correia, Joao Carvalheiras, Joao A. Labrincha, Jose C. Marques, Nuno Lapa, Cristina Delerue-Matos
Summary: This study provides important information on the feasibility of using granite sludge as a substitute for feldspar in ceramics and as a substitute for inert filler in structural concrete. The results show that while granite sludge can be used as a substitute for feldspar, its tinting effect may limit its applications in certain ceramic products. Similarly, using granite sludge as a substitute for inert filler in concrete reduces strength and increases water:cement ratio. However, the environmental impacts of using granite sludge as an inert filler are lower than as a substitute for feldspar in most impact categories.
APPLIED SCIENCES-BASEL
(2023)
Article
Construction & Building Technology
Pavel Leonardo Lopez Gonzalez, Rui Miguel Novais, Joao Labrincha, Bart Blanpain, Yiannis Pontikes
Summary: This study investigated the influence of mineralogical changes in modified BOFS on the properties of alkali-activated binders. The amorphous-crystalline proportions of particles from different size ranges were quantified and activated with NaOH solutions. The results showed that these reactions affected the reaction kinetics and mechanical strength of the produced binders. The differences in amorphous content between fine and coarse fractions were found to interact with admixtures and liquid-to-solid ratio, impacting the kinetics of cementitious reactions and the rate of strength development.
CEMENT & CONCRETE COMPOSITES
(2023)
Review
Construction & Building Technology
Youssef Ettahiri, Brahim Bouargane, Kamal Fritah, Brahim Akhsassi, L. Perez-Villarejo, Ayoub Aziz, Lahcen Bouna, Abdeljalil Benlhachemi, Rui M. Novais
Summary: This review article discusses the potential of porous geopolymers in removing various contaminants from aqueous solutions, such as heavy metals, dyes, drug residues, pharmaceuticals, and pesticides. The article also provides an overview of recent preparation methods and characteristics of geopolymers. The high porosity of geopolymers allows for the adsorption of large quantities of pollutants, and they have been shown to be thermally stable. Further optimization of fabrication procedures and exploration of novel applications are recommended.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Chemistry, Physical
Ines S. Vilarinho, Goncalo Guimaraes, Joao A. Labrincha, Maria P. Seabra
Summary: This paper studies the use of municipal solid waste incineration bottom ash (BA) as a replacement for clinker/cement in the cement industry. It found that using BA as aggregate leads to deterioration of the mortar surface, making it unfeasible. However, using BA as a partial binder substitute or as filler can be suitable for walls with a minimum required mechanical resistance of 5 MPa. These mortars also demonstrated resilience against freeze-thaw cycles and even exhibited increased compressive strength after 25 cycles.
Article
Chemistry, Multidisciplinary
Stephanie Rocha, Guilherme Ascensao, Lino Maia
Summary: Self-compacting cementitious mixtures have gained significance in the construction market due to their improved compaction, workability, fluidity, and mechanical properties. This study aimed to optimize the fresh properties and strength development of self-compacting mortars using statistical response surface methodology.
APPLIED SCIENCES-BASEL
(2023)
Article
Materials Science, Multidisciplinary
Joao Carvalheiras, Ines E. Oliveira, Ricardo M. Silva, Rui F. Silva, Rui M. Novais, Joao A. Labrincha
Summary: This study reports for the first time the synthesis and growth of carbon nanotubes on red mud, utilizing the iron present in the waste material and avoiding the use of commercial catalysts. The modified materials showed remarkable lead removal capacity.
Article
Green & Sustainable Science & Technology
Lars odegaard Bentsen, Narada Dilp Warakagoda, Roy Stenbro, Paal Engelstad
Summary: This study investigates uncertainty modeling in wind power forecasting using different parametric and non-parametric methods. Johnson's SU distribution is found to outperform Gaussian distributions in predicting wind power. This research contributes to the literature by introducing Johnson's SU distribution as a candidate for probabilistic wind forecasting.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Xing Liu, Qiuchen Wang, Yunhao Wen, Long Li, Xinfang Zhang, Yi Wang
Summary: This study analyzes the characteristics of process parameters in three lean gas ethane recovery processes and establishes a prediction and multiobjective optimization model for ethane recovery and system energy consumption. A new method for comparing ethane recovery processes for lean gas is proposed, and the addition of extra coolers improves the ethane recovery. The support vector regression model based on grey wolf optimization demonstrates the highest prediction accuracy, and the multiobjective multiverse optimization algorithm shows the best optimization performance and diversity in the solutions.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Cairong Song, Haidong Yang, Xian-Bing Meng, Pan Yang, Jianyang Cai, Hao Bao, Kangkang Xu
Summary: The paper proposes a novel deep learning-based prediction framework, aTCN-LSTM, for accurate cooling load predictions. The framework utilizes a gate-controlled multi-head temporal convolutional network and a sparse probabilistic self-attention mechanism with a bidirectional long short-term memory network to capture both temporal and long-term dependencies in the cooling load sequences. Experimental results demonstrate the effectiveness and superiority of the proposed method, which can serve as an effective guide for HVAC chiller scheduling and demand management initiatives.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Zhe Chen, Xiaojing Li, Xianli Xia, Jizhou Zhang
Summary: This study uses survey data from the Loess Plateau in China to evaluate the impact of social interaction on the adoption of soil and water conservation (SWC) technology by farmers. The study finds that social interaction increases the likelihood of farmers adopting SWC, and internet use moderates this effect. The positive impact of social interaction on SWC adoption is more pronounced for farmers in larger villages and those who join cooperative societies.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Chenghua Zhang, Yunfei Yan, Kaiming Shen, Zongguo Xue, Jingxiang You, Yonghong Wu, Ziqiang He
Summary: This paper reports a novel method that significantly improves combustion performance, including heat transfer enhancement under steady-state conditions and adaptive stable flame regulation under velocity sudden increase.
JOURNAL OF CLEANER PRODUCTION
(2024)
