Article
Engineering, Environmental
Yeongkyun Son, Yoogyeong Kim, Sungjun Bae, Tae-Hyun Kim, Yuhoon Hwang
Summary: The study demonstrates that organoclays prepared using two different structurally different surfactants exhibit promising chromium adsorption efficiency for in-situ groundwater remediation, making them potential in-situ chromate adsorbents.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Nadia Kashif, Boris Albijanic, Jing Jing Xu, Syahida Syahida, Teresa McGrath, Bogale Tadesse, Muhammad Kashif Nazir
Summary: The influence of bentonite on the grinding efficiencies of ores has been examined in this study. It was found that the presence of bentonite in the ore negatively affected the grinding performance of the ore, but this negative effect was mitigated by adding Ca2+ ions. The addition of Ca2+ ions reduced the repulsive forces between bentonite particles, leading to improved settling rates and grinding performance.
APPLIED CLAY SCIENCE
(2023)
Article
Engineering, Chemical
Guohua Gu, Siyu Song, Shiya Du, Yanhong Wang
Summary: The different effects of Na+ and K+ in salt water on chalcopyrite flotation in the presence of bentonite were studied. The results showed that high salt concentration can decrease the yield stress of bentonite and facilitate the separation between chalcopyrite and bentonite. K+ was more effective than Na+ in reducing the yield stress, but resulted in lower copper recovery and grade. At the same concentration, there was little difference in mass-water recovery or bentonite recovery between Na+ and K+. Additionally, the glue-like structure of bentonite in KCl solution was found to be related to the lower copper recovery and grade.
MINERALS ENGINEERING
(2022)
Article
Chemistry, Physical
Zuzana Vajglova, Irina L. Simakova, Kari Eranen, Paivi Maki-Arvela, Narendra Kumar, Markus Peurla, Stiina Tolvanen, Alexander Efimov, Leena Hupa, Jouko Peltonen, Dmitry Yu Murzin
Summary: The study investigated four clay materials in a catalytic reaction, with attapulgite showing the best results in terms of yield and stereoselectivity. Attapulgite had superior properties compared to other clay materials, exhibiting high meso-to-micropore volume ratio, basicity, and mechanical strength.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Chemistry, Physical
Pengfei Liu, Mingyong Du, Peta Clode, Jishan Liu, Yee-Kwong Leong
Summary: Pure and composite clay gels of sepiolite and LAPONITE (R) at different solid contents show time-dependent rheological behavior. The strength of composite structures increases with higher LAPONITE (R) content, while the time-dependent aging behavior is influenced by electric double layer repulsive forces.
Article
Chemistry, Physical
Nadia Kashif, Boris Albijanic, Jingjing Xu, Syahida Syahida, Teresa McGrath, Bogale Tadesse, Muhammad Kashif Nazir
Summary: This research investigated the influence of kaolin on grinding efficiency, revealing that the addition of Ca2+ ions reduced repulsion forces between kaolin particles and increased particle agglomeration, leading to a significant decrease in grinding performance. Therefore, controlling Ca2+ concentrations in plant water is crucial for maximizing the grinding performance of kaolin-containing ores.
APPLIED CLAY SCIENCE
(2021)
Review
Chemistry, Physical
Shiva Mohammadi-Jam, Kristian E. Waters, Richard W. Greenwood
Summary: This article reviews the use of the electroacoustic technique in determining the zeta potential of concentrated aqueous suspensions and emphasizes the importance of identifying the isoelectric points for colloidal stability and processing. The application of the technique in polymer lattices is also summarized.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Applied
Lucia Gutierrez Fernandez, Soledad Vera-Lopez, Ana Maria Diez-Pascual, Maria Paz San Andres
Summary: Clays and their mixtures with graphene have been used as sorbents in the analysis of tryptophan. The proposed method provides a direct, easy, and sustainable way to accurately determine the concentration of tryptophan in complex matrices.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2022)
Article
Engineering, Chemical
Dana I. M. Al-Risheq, M. S. Nasser, Hazim Qiblawey, Ibnelwaleed A. Hussein, Mohammad A. Al-Ghouti
Summary: The study investigated the impact of NADES and ChCl-LA mixture on the rheological behavior of bentonite suspensions. Changes in rheological parameters were influenced by the concentration and structure of the coagulants. Increasing the concentration of coagulants led to enhanced elastic properties and greater destabilization degree, resulting in improved suspension viscosity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Dana I. M. Al-Risheq, Shifa M. R. Shaikh, Mustafa S. Nasser, Fares Almomani, Ibnelwaleed A. Hussein, Mohammad K. Hassan
Summary: The influence of hybrid coagulation/flocculation systems on the degree of flocculation and rheological behavior of bentonite suspension was studied. The utilization of a hybrid system significantly affected the treatment efficiency of the flocculants. The hybrid systems enhanced the properties of the sediment by forming larger and more compacted flocs.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Manuela Lechuga, Alejandro Avila-Sierra, Ismael Lobato-Guarnido, Ana I. Garcia-Lopez, Francisco Rios, Mercedes Fernandez-Serrano
Summary: There is an increasing use of nanotechnology in cosmetics, with nanocarriers improving the quality and performance of products. However, the interaction between compounds can cause skin irritation. To address this, a study investigated the use of low-toxicity silica nanoparticles in combination with anionic and non-ionic surfactants to develop safer formulations. The inclusion of silica nanoparticles can potentially reduce the skin irritation potential caused by the mixture of surfactants.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Chemical
Youjie Sheng, Yunchuan Peng, Canbin Yan, Yang Li, Li Ma, Qiuhong Wang, Shanwen Zhang
Summary: This study experimentally investigated the molecular interactions, rheological properties, and foam properties of mixed dispersions of silica nanoparticles, nonionic hydrocarbon surfactant, and fluorocarbon surfactant in water. The results showed that the nanoparticles strongly influenced the rheological and foam properties of the mixed solutions. Additionally, with an increase in nanoparticle concentration, the foam stability was enhanced while the foaming properties weakened.
Article
Multidisciplinary Sciences
Allan M. Neves, Vanessa C. Santanna, Jennys L. M. Barillas, Tereza N. Castro Dantas, Katherine C. Oliveira, Alisson G. B. Gois
Summary: The study investigated the adsorption ability of anionic surfactant in limestone, showing that the surfactant could be significantly adsorbed on the rock, reducing its wettability.
ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS
(2021)
Article
Construction & Building Technology
Eylul Mina Aydin, Burhan Kara, Zeynep Basaran Bundur, Nilufer Ozyurt, Ozkan Bebek, Mehmet Ali Gulgun
Summary: In the field of digital concrete manufacturing, researchers have investigated the use of different clay materials to improve rheological properties and printability. This study found that sepiolite was more effective than nano-montmorillonite in improving thixotropy, structural build-up, and recovery. The addition of clay had positive effects on the rheology of fly-ash amended cement-based materials.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Energy & Fuels
Krishna Raghav Chaturvedi, Tushar Sharma
Summary: Single-step silica nanofluids were found to destabilize at higher temperatures and in the presence of salt, but showed stability within a pH range of 8-10. The addition of anionic surfactant improved nanofluid stability, although high surfactant concentrations resulted in increased agglomeration. Using surfactant treated single-step silica nanofluids may provide better results for oil recovery applications compared to conventional nanofluids.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Review
Chemistry, Analytical
Nina Nouri, Parisa Khorram, Osman Duman, Sibel Tunc, Hassan Sereshti
TRENDS IN ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2020)
Article
Chemistry, Physical
Tulin Gurkan Polat, Osman Duman, Sibel Tunc
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2020)
Article
Chemistry, Physical
Bahar Kanci Bozoglan, Osman Duman, Sibel Tunc
Summary: New OXI-loaded hydrogels with high antifungal activity were developed for onychomycosis treatment. The release of OXI from the hydrogels can be controlled by adjusting the amount of MMT in the hydrogel matrix.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Food Science & Technology
Orcun Cinar, Osman Duman, Sibel Tunc
Summary: A new HPLC method was optimized and validated for the determination of asparagine in Asparagus lycicus plant, with satisfactory recovery and low LOD and LOQ values. The phytochemical analysis revealed that the plant is rich in antioxidant and bioactive constituents, indicating its potential applications in pharmaceutical and food industries.
FOOD ANALYTICAL METHODS
(2021)
Article
Chemistry, Applied
Osman Duman, Ceren Ozcan Diker, Hilal Ugurlu, Sibel Tunc
Summary: In this study, low-cost, environmentally friendly and porous agar/PVA aerogel sorbent materials were developed for the selective separation of oily substances and organic solvents from water. The aerogels demonstrated good absorption capacity and separation efficiency, making them promising materials for oil-water or organic solvent-water separation.
CARBOHYDRATE POLYMERS
(2022)
Article
Environmental Sciences
Osman Duman, Tulin Gurkan Polat, Sibel Tunc
Summary: A new nanofiber membrane material with excellent adsorption and separation properties has been developed in this study, showing promising applications in water treatments and separation studies.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Engineering, Environmental
Osman Duman, Hilal Ugurlu, Ceren Ozcan Diker, Sibel Tunc
Summary: In this study, highly hydrophobic or superhydrophobic PVA and agar/PVA membrane materials were successfully prepared and showed good separation and absorption capacity for oily substances and organic solvents. These membrane materials have potential applications in wastewater treatment and the separation of oily substance-water mixtures.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Osman Duman, Ceren Ozcan Diker, Sibel Tunc
Summary: A new absorbent material, CMS/rGO/PFDT, with excellent hydrophobicity and superoleophilicity was successfully prepared in this study. It can effectively absorb oily substances and achieve oil-water separation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Biochemistry & Molecular Biology
Bahar Kanci Bozoglan, Osman Duman, Sibel Tunc
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2020)
Article
Chemistry, Physical
Wenjing Tan, Chunmei Gao, Shifeng Ji, Yunqing Xing, Yi Guo, Baogui Liang
Summary: Membrane separation technology is widely used in wastewater treatment due to its cost-effectiveness and productivity. However, organic membrane fouling caused by humic acid is a major barrier to its further development. This study successfully addressed this issue through the production of composite materials and self-cleaning membranes, providing beneficial strategies and solutions for membrane contamination problems.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Qichang Peng, Qingdong Ruan, Bin Wang, Jinyuan Liu, Chao Huang, Xingwang Zhu, Dan Li, Liangliang Liu, Yinchuan Wang, Xiaolin Zhang, Jia Yan, Paul K. Chu, Hui Xu
Summary: The escalating issue of water pollution has led to significant attention in the field of photocatalysis. In this study, OV-Sb2WO6-X photocatalyst with oxygen vacancies was synthesized, which exhibited enhanced charge separation efficiency and improved photocatalytic activity. The introduction of oxygen vacancies was successfully controlled and characterized, and the modified photocatalyst showed superior degradation efficiency for dye wastewater treatment.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wangcheng Zhang, Cunchuan Zheng, Hu Xie, Weichao Du
Summary: By using a specific curing agent ETB, the problem of dispersion and stability for oily epoxy resin in cement slurry system has been successfully solved. The application of the emulsified curing agent ETB in oilfield cement slurry system shows good rheological performance, resistance to high temperature and high pressure water loss, and corrosion resistance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
O. I. Krivonos, A. Babenko, O. B. Belskaya
Summary: This study synthesized biochar based on sapropel and investigated the effects of chemical modification on its textural characteristics, acid-base properties, and adsorption properties. The results showed that the chemical modification increased the fraction of micropores, specific surface area, and changed the surface properties of biochar. The experiment also revealed that biochar pretreated with alkali exhibited the maximum adsorption capacity for copper ions. A conceptual model identifying the mechanisms of copper adsorption on sapropel-based biosorbent was proposed.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
H. Lachhab, N. Benzbiria, A. Titi, S. Echihi, M. E. Belghiti, Y. Karzazi, A. Zarrouk, R. Touzani, C. Jama, F. Bentiss
Summary: The corrosion inhibitory potency of two new pyrimidine-pyrazole derivatives, PPA and PPC, was evaluated for mild steel in 1 M HCl. The results showed enhanced inhibition activities with increased concentration, reaching maximal values of 91.15% and 92.39% for PPA and PPC, respectively. However, the mitigation potency decreased with increasing temperature. SEM and XPS analysis revealed that PPA and PPC adsorbed on the mild steel surface, forming a shielding layer that prevented the dissolution of the steel in the acidic solution.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Shanmugapriya Sivalingam, D. Jeya Sundara Sharmila, Goutham Golla, Lakshmanan Arunachalam, Tarunendu Singh, G. Karthikeyan, A. Shanthi, Kannan Malaichamy
Summary: This study aims to develop a nano-biofungicide comprising of volatile essential oil molecules to enhance its efficacy in the field of agriculture through easily scalable green synthesis technique. The nano biofungicide was prepared through one pot hot melt ultrasonication technique with easy water dispersibility and long term stability. The physico-chemical analysis revealed that, nano bio-fungicides were amorphous sphere-shaped nanoparticles with low melting point. The encapsulation efficiency of major components of essential oil was determined, and it was found that they followed Higuchi model of release kinetics. The essential oil loaded nanostructured lipid carrier showed significantly higher mycelial growth inhibition compared to pure essential oil, indicating enhanced bio-efficacy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yinlong Li, Yingqing Zhan, Yiwen Chen, Hongshan Jia, Ximin Chen, Fei Zhu, Xulin Yang
Summary: In this study, ZnO quantum dots decorated MXene nanosheets were used as a functional filler for waterborne epoxy coating. The improved dispersion and synergy of ZnO QDs and MXene nanosheets enhanced the anticorrosion performance of the coating.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Fucheng Guan, Jing Tao, Qiang Yao, Zheng Li, Yihang Zhang, Shi Feng, Jianbin Sun, Qiang Yang, Xuecui Song, Jing Guo, Yuanfa Liu
Summary: This paper presents a method for preparing adsorbent materials based on biomass that can efficiently adsorb methylene blue. The experimental results show that the material has a hierarchical structure, high adsorption capacity, and reusability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Pengfei Hu, Zuli Mo, Weiliang Wang, Chengzhe Li, Zhaojia Guo, Guanqing Lin, Zhimin Guo
Summary: This study developed a novel in-situ particle vision and measurement (PVM) system to investigate heterocoagulation between coarse and fine particles in mineral processing. The experimental results showed that the degree of heterocoagulation decreased with increasing pH and stirring speed. Furthermore, under certain hydrodynamic conditions, coal particles were more distributed at the rear of the glass bead.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Tanveer ul Haq Zia, Anwar ul Haq Ali Shah, Behisht Ara, Kashif Gul
Summary: A label-free immunosensor for detection of hepatitis C core antigen was fabricated using a ternary nanocomposite based on polypyrrole, silver doped zinc oxide, and exfoliated graphene. The immunosensor demonstrated low detection limit, high selectivity, and stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoyan Feng, Jiachen Li, Lijun Liang, Linli Zhu, Sa Liu, Li Ren
Summary: In this study, polystyrene divinylbenzene microspheres were surface-modified by poly(carboxybetaine methacrylate) to develop an efficient hemoperfusion adsorbent for the removal of protein-bound toxins. The modified microspheres showed increased adsorption capacity and better biocompatibility, making them promising for clinical hemoperfusion therapy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoye Bi, Dong Xue, Yunpeng Wang, Chencheng Lv, Zexiong Li, Tao Zhao
Summary: This research aimed to develop a durable and formaldehyde-free flame retardant treatment for cotton fabrics. The results demonstrated successful grafting of phosphorous acid (PA) onto cotton fabrics, leading to enhanced flame resistance while maintaining the desired fabric characteristics.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Ruolin Wang, Wenjuan Sun, Haisheng Han, Dongping Tao
Summary: This study finds that Al-starch colloidal depressants can effectively inhibit the flotation of ultrafine calcite and chlorite, and increase the grade of valuable minerals. The chemisorption of Al-starch on mineral surface changes the functional group peaks and generates new O-Al functional groups.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wondimu K. Wakejo, Ali Maged, Beteley T. Meshesha, Joon W. Kang, Abayneh G. Demesa, Sandip Chakrabarti, Thallada Bhaskar, Ashok Kumar Gupta, Amit Bhatnagar
Summary: Simultaneously removing different pharmaceutical pollutants from wastewater is an important environmental issue, and the use of a system that can remove multiple contaminants at once is necessary. Functionalized biochar (FBC) has been found to be effective in simultaneously removing acetaminophen and ciprofloxacin and other pharmaceutical pollutants.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yu Wang, Fengwen Yan, Jie Wu, Zhijun Huang, Liuting Song, Shunda Yuan
Summary: In this study, Cu single atoms are anchored on the external surface of g-C3N4 nanofibers to maximize atom utilization. This catalyst exhibits excellent Fenton-like catalytic activity and good stability due to the full utilization of Cu active sites.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)