Article
Environmental Sciences
Yan Ma, Xinyi Wu, Tong Wang, Shengkun Zhou, Biying Cui, Haoqun Sha, Bowen Lv
Summary: Complexes formed by organic matter and clay minerals play a crucial role in the migration and transformation of pollutants in soil systems. This study focused on the preparation and analysis of humic-acid-montmorillonite (HA-MT) and humic-acid-kaolin (HA-KL) complexes, and investigated their adsorption-desorption characteristics for aniline. The results showed that the complexes exhibited enhanced flaky and porous structure, increased aromaticity, and higher adsorption capacity compared to pristine clay minerals. The adsorption of aniline onto the complexes was nonlinear and increased with higher HA content, with HA-MT showing higher adsorption capacity than HA-KL. After adsorption, the specific surface area of the complexes decreased, the surfaces became more complex, and the aromaticity decreased.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Almudena Gomez-Aviles, Lotfi Sellaoui, Michael Badawi, Adrian Bonilla-Petriciolet, Jorge Bedia, Carolina Belver
Summary: Non-selective and simultaneous adsorption of pharmaceutical compounds on an organo-sepiolite was studied via statistical physics modeling. Experimental and theoretical investigations indicated that the organo-sepiolite showed the highest adsorption capacities for diclofenac in solutions with one and three pharmaceuticals. The study also revealed that diclofenac had higher density of functional groups and adsorption energy compared to other pharmaceuticals in the solutions tested.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Applied
Yiming Gu, Huixia Feng, Bin Wang, Jianhui Qiu, Xuefen Meng, Liang Zhang, Bin Zhang, Nali Chen, Lin Tan
Summary: This study proposes a simple modification method for sepiolite and investigates its performance in removing Pb2+ from aqueous solution. The modification conditions of sepiolite were optimized using the response surface method, resulting in significantly improved adsorption capacity for Pb2+. Various characterizations and analyses revealed that the adsorption mechanism of modified sepiolite involves ion exchange, surface hydroxyl complexation, pore filling, and electrostatic attraction.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Engineering, Environmental
Kardelen Kaya-Ozkiper, Alper Uzun, Sezen Soyer-Uzun
Summary: The study introduces a novel sepiolite-based alkali-activated material that demonstrates high mechanical strength and excellent methylene blue removal performance for wastewater treatment. The material showed a removal capacity of 99.92 mg g-1 at 50 degrees Celsius, achieving adsorption through pseudo-second-order kinetics. The interaction between Sep-AAM and methylene blue involved weak chemical bonding, allowing for regenerability up to four cycles.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Fadwa Largo, Redouane Haounati, Hassan Ouachtak, Naima Hafid, Amane Jada, Abdelaziz Ait Addi
Summary: A novel adsorbent design method of sepiolite was developed by organic surface modification and carbonization, and the obtained carbon@sepiolite composites exhibited excellent adsorption properties for the removal of malachite green dye from water. Various characterization techniques confirmed the successful synthesis and good adsorption capacity of the composites. The adsorption behavior of malachite green molecules on the modified sepiolite surface was well described by kinetic and equilibrium models, suggesting a homogeneous monolayer adsorption. The thermodynamic analysis indicated the spontaneous and endothermic nature of the adsorption process. Overall, this work provides a facile approach for the design of organically modified sepiolite as efficient adsorbents for waste recycling.
WATER AIR AND SOIL POLLUTION
(2023)
Review
Engineering, Environmental
Suhail Ayoub Khan, Tabrez Alam Khan
Summary: This review highlights the importance and applications of clay-hydrogel nanocomposites in wastewater treatment, emphasizing their high sorption capacity and environmental viability, and summarizing their adsorption and regeneration mechanisms.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Facundo Barraque, Maria L. Montes, Mariela A. Fernandez, Roberto Candal, Rosa M. Torres Sanchez, Jose L. Marco-Brown
Summary: Magnetic-clay and magnetic-organoclay nanocomposites were synthesized and evaluated for arsenic adsorption, showing highest removal efficiency under acidic conditions. The materials exhibited two adsorption processes and could be separated and recovered using external magnetic fields.
ENVIRONMENTAL RESEARCH
(2021)
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
Soufiane El Mahmoudi, Abdellah Elmchaouri, Assya El Kaimech, Antonio Gil
Summary: This study aimed to optimize the adsorption of pentachlorophenol using an organo-clay under the response surface methodology. The results showed that the modified organo-montmorillonite had increased basal space and pore diameter, with a decrease in specific surface and pore volume. By using the response surface methodology, the optimal conditions for PCP removal were determined.
Article
Engineering, Environmental
Zahirah Mohd Zain, Ahmed Saud Abdulhameed, Ali H. Jawad, Zeid A. ALOthman, Zaher Mundher Yaseen
Summary: This study developed a pH-sensitive chitosan/sepiolite clay/algae biocomposite for efficient removal of cationic and anionic dyes by adjusting the solution pH. The optimal conditions for dye removal were determined using a Box-Behnken design and the adsorption mechanism was investigated. The biocomposite exhibited high adsorption capacity and the adsorption process was confirmed to be endothermic and spontaneous. Various interactions, such as electrostatic, H-bonding, and n-pi interactions, contributed to the adsorption mechanism.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Review
Chemistry, Multidisciplinary
Jingfan Qi, Jiacheng Yu, Kinjal J. Shah, Dhirpal D. Shah, Zhaoyang You
Summary: Natural clay mineral and its modifier, modified clay, have been used in environmental applications for years, but they are not capable enough to achieve higher conversion rate and ecological sustainability due to a lack of understanding of their selectivity or compatibility with pollutants. The development and implementation of green principles have become an emerging field that combines green chemistry and engineering practices to achieve a pollutant-free environment. This review summarizes the role of clay/modified clay in pollution control and discusses the role of green chemistry in global sustainability.
APPLIED SCIENCES-BASEL
(2023)
Article
Environmental Sciences
Zeljka Milovanovic, Slavica Lazarevic, Ivona Jankovic-Castvan, Zeljko Radovanovic, Slobodan Cvetkovic, Dorde Janackovic, Rada Petrovic
Summary: Sepiolite/ZrO2 composites were prepared by modifying sepiolite with zirconium propoxide in toluene at different temperatures. The composites showed improved adsorption capacities for phosphate removal from aqueous solutions compared to sepiolite. The formation of inner-sphere complexes was identified as the mechanism of phosphate adsorption, and the strong bonds between phosphate and the composite surface were confirmed by slow release during desorption with NaOH solution.
Article
Environmental Sciences
Sami Ullah, Altaf Ur Rahman, Fida Ullah, Abdur Rashid, Tausif Arshad, Eva Viglasova, Michal Galambos, Niyaz Mohammad Mahmoodi, Haseeb Ullah
Summary: The study evaluated the potential of three different natural inorganic clays for removing malachite green dye from aqueous solutions. Results showed that Langmuir isotherm model and pseudo-first-order kinetic model best described the adsorption behavior of MG, and natural inorganic clays with higher surface area can be effective adsorbents for removing MG dye.
Article
Green & Sustainable Science & Technology
Yingshu Liu, Chunyu Zhao, Ziyi Li, Miaomiao Meng, Xiong Yang, Wenbo Bian, Haoyang Wu, Chuanzhao Zhang, Jun Wang, Chuen-Jinn Tsai, Ralph T. Yang
Summary: Through a systematic investigation, FDU-15 and CMK-5 were identified as superior sorbents with high maximum adsorption capacities (1.13 and 1.735 mmol/g) and low desorption activation energy (62.66 and 72.68 kJ/mol) due to their advantageous three-dimensional diffusion-controlled desorption and efficient adsorption properties. These findings highlight the importance of morphology-affinity relationship in achieving comprehensive balances of sorption performances in capturing and recovering naphthalene from hot flue gas.
JOURNAL OF CLEANER PRODUCTION
(2021)
Review
Pharmacology & Pharmacy
Farzaneh Sabbagh, Beom Soo Kim
Summary: Clays have a specific structure that enables them to interact with drugs and control drug release, making them a powerful drug delivery system. Transdermal delivery is a method of drug administration that avoids drug transformation in the liver. Recent studies have shown that adding 5wt% clay is suitable for transdermal drug delivery. This review discusses clay-based polymer microneedles, mechanisms of clay-drug interactions, and antimicrobial effects of clays. It also explores carriers for clay transdermal drug delivery and in vitro drug release from clay-drug composites.
EXPERT OPINION ON DRUG DELIVERY
(2022)
Article
Environmental Sciences
Cigdem Ay, Asiye Safa Ozcan, Yunus Erdogan, Adnan Ozcan
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2017)
Article
Chemistry, Physical
Elif Mine Oncu-Kaya, Nilgun Side, Ozer Gok, Asiye Safa Ozcan, Adnan Ozcan
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2017)
Article
Materials Science, Ceramics
Ersin Basaran, Tugba Alp Arici, Adnan Ozcan, Ozer Gok, A. Safa Ozcan
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2019)
Article
Chemistry, Inorganic & Nuclear
Tugba Alp Arici, Simge Metinoglu Orum, Yasemin Suzen Demircioglu, Adnan Ozcan, A. Safa Ozcan
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS
(2018)
Article
Chemistry, Physical
Emel Ermis, Yasemin Suzen Demircioglu, A. Safa Ozcan
JOURNAL OF MOLECULAR STRUCTURE
(2019)
Article
Engineering, Environmental
Tugba Alp Arici, A. Safa Ozcan, Adnan Ozcan
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2020)
Article
Chemistry, Multidisciplinary
Tugba Alp Arici, A. Safa Ozcan, Adnan Ozcan
Summary: The biosorption of Pb(II) and Cd(II) ions onto thiosalicylic acid modified Isatis tinctoria (TS-I) was effective, with TS-I showing high biosorption capacity for metal ions. The study revealed that the biosorption equilibrium and kinetic data were well matched with Langmuir isotherm and pseudo-second-order kinetic models, respectively.
SEPARATION SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Analytical
Melis Altundal, Ahmet Uge, Ozer Gok, Bulent Zeybek
Summary: A novel electrochemical sensing platform based on differential pulse voltammetry was developed for selective determination of Cd(II) using a CeO2-PANI composite modified electrode. The electrode exhibited a large linear range and a low detection limit for Cd(II), showing good electrocatalytic activity. The platform was successfully applied for reliable determination of spiked Cd(II) in various samples.
ANALYTICAL LETTERS
(2021)
Article
Chemistry, Applied
Sedat Yurdakal, Sidika Cetinkaya, Levent Ozcan, Ozer Gok, Leonardo Palmisano
Summary: The study investigated the photoelectrocatalytic oxidation of 3-pyridinemethanol using TiO2 anode plates loaded with different noble metals under UVA irradiation, with Pd showing high activity and selectivity when loaded in low amounts. The experiments suggest that PEC is more selective than PC for vitamin B-3 production.
Article
Chemistry, Multidisciplinary
Selin Karadag Memis, Emel Ermis, Asiye Safa Ozcan
Summary: This study focused on the synthesis, characterization and modification of mesoporous silica (MS), as well as drug removal and release studies. The synthesized MS exhibited an ordered structure with high surface area and homogenous pore size distribution, while the modification with a Schiff base (S) ligand was also carried out. Various analyses including SEM, nitrogen gas adsorption, FT-IR spectroscopy, XRD and DLS were performed for the characterization of MS and Schiff base modified MS (S-MS). The adsorption of model drugs onto MS and S-MS under different conditions was investigated, and the drug release efficiency of hybrid structures was evaluated.
SEPARATION SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Chemical
Arvin Sohrabi, Mousa Meratizaman, Shuli Liu
Summary: This paper simulates and discusses possible solutions to improve the economic and technical performances of a battery-less renewable energy-powered BWRO system under real climate conditions. The study finds that the photovoltaic-based system performs better in terms of specific energy consumption and unused energy ratio.
Article
Engineering, Chemical
Chunlan Pan, Xiaoyin Hu, Vishal Goyal, Theyab R. Alsenani, Salem Alkhalaf, Tamim Alkhalifah, Fahad Alturise, Hamad Almujibah, H. Elhosiny Ali
Summary: This paper introduces a novel waste heat recovery method using the hot flue gas from a ship's engine to produce liquefied hydrogen while meeting the ship's air-conditioning requirement. A comprehensive feasibility assessment is conducted and an artificial neural network with a multiobjective grey wolf optimization method is used for optimization. The findings indicate the highest mean sensitivity index of the flash temperature and the best optimization scenario for exergy efficiency, CO2 emission reduction, and liquefied hydrogen cost.
Article
Engineering, Chemical
Daniele Chinello, Jan Post, Louis C. P. M. de Smet
Summary: In this study, PVDF-based anion-exchange membranes were designed to selectively separate nitrate from chloride. Experimental data showed that increasing the concentration of PVDF enhanced nitrate transport but also increased the membrane electrical resistance. The selectivity of nitrate was found to be independent of the membrane thickness and mainly driven by the increased affinity between the anion and the membrane.
Article
Engineering, Chemical
Umar Noor, Muhammad Fayyaz Farid, Ammara Sharif, Amna Saleem, Zubair Nabi, Muhammad Furqan Mughal, Kiran Abbas, Toheed Ahmed
Summary: Global water scarcity is increasing, and water desalination is an important solution. Multifunctional advanced materials, such as membrane materials and solar-driven desalination, play a crucial role in water desalination. Additionally, these materials can be used for water purification, wastewater treatment, and pollutant elimination.
Article
Engineering, Chemical
Emrah Gumus
Summary: With growing global concerns about climate change and environmental impacts, the use of nuclear energy in naval vessels offers a cleaner and more efficient solution to reduce emissions and address water and energy supply challenges. This study explores a novel system that combines a nuclear-driven supercritical carbon dioxide power cycle with reverse osmosis cogeneration to meet the water and electricity demands in maritime operations, enhancing the sustainability, efficiency, and self-sufficiency of naval vessels. The results indicate that the system has the potential to be a viable and effective solution for naval operations.
Article
Engineering, Chemical
Dao Thi Thanh Huyen, Saikat Sinha Ray, Young -Nam Kwon
Summary: This study focuses on the modification of a commercially available polyamide thin-film composite membrane with a zwitterionic material to enhance its fouling resistance. The modified membrane shows improved salt rejection and reduced permeability compared to the pristine membrane. Fouling tests demonstrate that the modified membrane has a lower fouling ratio and higher recovery ratio. The enhanced antifouling characteristics are attributed to the improved hydrophilicity resulting from the zwitterionic brushes and the salting-in effect.
Article
Engineering, Chemical
Niklas Koeller, Lukas Mankertz, Selina Finger, Christian J. Linnartz, Matthias Wessling
Summary: This study presents a methodology to scale up Flow-electrode Capacitive Deionization (FCDI) technology from lab-scale to pilot-scale systems. By increasing membrane area and using a stacking approach, the FCDI modules were successfully scaled up and achieved a salt transfer rate comparable to lab-scale systems. This provides a foundation for future assessments of energy demand and economics.
Article
Engineering, Chemical
Mona Gulied, Sifani Zavahir, Tasneem Elmakki, Hyunwoong Park, Guillermo Hijos Gago, Ho Kyong Shon, Dong Suk Han
Summary: This study introduces a novel hybrid system that combines direct contact membrane distillation (DCMD) and electrically switched ion exchange (ESIX) to facilitate seawater reverse osmosis (SWRO) brine enrichment and selective lithium recovery.
Article
Engineering, Chemical
Zhiqiang Zhang, Ruifeng Deng, Jiao Zhang, Lu She, Guangfeng Wei, Renyong Jia, Pengyu Xiang, Siqing Xia
Summary: A transmembrane electro-chemisorption system with authigenic acid and base was developed for enhancing ammonia recovery from strong ammonia wastewater. The system efficiently transformed ammonium into free ammonia, which was then adsorbed and recovered through transmembrane chemisorption. This system yielded pure (NH4)2SO4 product and produced valuable byproducts of pure hydrogen and oxygen. Higher applied voltage resulted in better ammonia recovery.
Article
Engineering, Chemical
Alena Popova, Sandrine Boivin, Takuji Shintani, Takahiro Fujioka
Summary: This study aimed to produce a high-integrity RO membrane by forming a polyamide skin layer on a TE support layer, in order to enhance the integrity of the membrane and improve the microbiological safety of potable water reuse.
Article
Engineering, Chemical
Sanjana Yagnambhatt, Saber Khanmohammadi, Jonathan Maisonneuve
Summary: This study investigates the concept of using heat to enhance reverse osmosis (RO) desalination. The effect of temperature on water permeate flux, specific energy, permeate quality, and applied operating pressures is evaluated using an analytical model. The results suggest that under specific conditions, the tradeoff between savings in mechanical pump work and thermal energy input in thermally-enhanced RO can be favorable, leading to overall energy savings.
Article
Engineering, Chemical
Jiangju Si, Chenrui Xue, Shun Li, Linchao Yang, Weiwei Li, Jie Yang, Jihong Lan, Ningbo Sun
Summary: To meet the huge demand for lithium resources, there is an urgent need to develop a new efficient technology for lithium recovery from salt-lake brines. In this study, a selective membrane capacitive deionization system is reported, which achieves high lithium recovery capacity and rate through the use of materials with efficient intercalated pseudo-capacitance and a high specific area porous carbon. The use of a modified thin-coated membrane allows for selective Li+ recovery, and adjusting the concentrations of Li+ and Mg2+ in the feed solution enables higher Li+/Mg2+ selectivity.
Article
Engineering, Chemical
Mohamed R. Salem, R. Y. Sakr, Ghazy M. R. Assassa, Omar A. Aly
Summary: This research proposes a new method of using wasted thermal energies as an additional heating source for solar still distillation units (SSDUs) to increase productivity and reduce pollution and global warming. By testing two SSDUs, the study shows that heating airflow can raise temperatures, enhance freshwater production, and improve system thermal efficiency.
Article
Engineering, Chemical
Qimeng Sun, Miao Sun, Linyan Yang, Yuan Gao, Xinghai Zhou, Lihua Lyu, Chunyan Wei
Summary: This study presents an innovative design and fabrication of a fabric-based conical roll (FCR) evaporator, which enables low-temperature evaporation and achieves high evaporation efficiency with excellent thermal management ability. The evaporator has demonstrated advanced light-harvesting capability and can produce freshwater that meets drinking water standards, showing great potential for applications in desalination and sewage treatment.
Article
Engineering, Chemical
Yidong Zhang, Wangfang Deng, Meiyan Wu, Chao Liu, Guang Yu, Qiu Cui, Pedram Fatehi, Chunlin Xu, Bin Li
Summary: In this study, a novel polydopamine-functionalized lignin-containing pulp foam evaporator with high-efficiency desalination and multi-contaminant adsorption capabilities was designed. The foam evaporator showed excellent light absorption, water absorption, thermal conductivity, and chelation abilities, allowing for solar evaporation and contaminant adsorption synergistically. It also exhibited potential applications in metal ion concentration and contaminated seawater treatments, and demonstrated superior biodegradability compared to poly-styrene foam. This foam material holds promise for developing multifunctional photo-thermal systems for solar-driven water purification.
