Article
Nanoscience & Nanotechnology
Haftu Gebrekiros Alemayehu, Rshan Beyene Hailu, Paulos Taddesse
Summary: Graphene oxide (GO) is a promising material for nanofiltration membranes to address the global water shortage. However, the stability of GO membrane in water and its long-term operation remains unresolved. In this study, an ultrathin GO membrane was fabricated on a nylon substrate within 5 min using vacuum filtration, and drying at 70 degrees C improved the stability and performance of the membrane.
Article
Engineering, Environmental
Siyu Zhou, Kecheng Guan, Zheng Wang, Qiangqiang Song, Zhan Li, Ping Xu, Luyao Deng, Shang Xiang, Hideto Matsuyama
Summary: Multilayered graphene oxide (GO) membranes with nanoporous interlayer have limitations in water desalination due to their tortuous transport pathways and water-swelling characteristics. This study develops a confined interlayer with mediated nanoparticle intercalation to enhance water transport and ion retardation in GO membranes. The roles of confinement and mediation in the intercalation modification of GO laminates are investigated, highlighting their indispensability in achieving efficient desalination processes. This strategy may also be applicable to fine-structure control of other two-dimensional laminates.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Daniel J. Johnson, Nidal Hilal
Summary: This review paper discusses the potential of graphene as a material for desalination processes and highlights its revolutionary properties in comparison to traditional materials.
Article
Engineering, Environmental
Habib Karimipour, Afsaneh Shahbazi, Vahid Vatanpour
Summary: The study introduced the preparation process of GO/MDA nanocomposites and their incorporation into PES membranes. The presence of GO/MDA in the membranes enhanced hydrophilicity, porosity, and permeability, resulting in increased pure water flux and improved flux recovery ratio. Additionally, the membranes showed excellent performance in nanofiltration, with near total rejection of anionic dye and good retention of divalent ions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Zhenjiang Li, Yucheng Xing, Yan Liu, Alan Meng, Xiaoyan Fan
Summary: By chemically modifying the surface of graphene oxide (GO) using diazonium chemistry, we introduce nitrobenzene groups as interlayer pillars in GO membranes, similar to the oxygen-containing functional groups on the surface. The larger pillars effectively enlarge the interlayer space of the GO membrane, leading to improved filtration performance for dyes.
Article
Engineering, Environmental
Liu Yang, Fengchun Jia, Zhaoge Juan, Dehao Yu, Liyue Sun, Yu Song, Yanxin Wang, Linjun Huang, Jianguo Tang
Summary: Graphene oxide (GO) modified graphitic carbon nitride (g-C3N4) was used as a support material to prepare laminated nanofiltration membranes. The modified membranes showed a water permeability of 274.7 L center dot m(-2)center dot h(-1)center dot bar(-1), which was 11.5 times higher than that of GO membranes. The membranes also exhibited excellent selectivity and stability. This study provides a new reference for the development of stable and reliable nanofiltration membranes in water treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
K. R. Balaji, R. Hardian, V. G. D. Kumar, R. Viswanatha, S. Kumar, S. Kumar, A. Singh, M. S. Santosh, G. Szekely
Summary: The sustainability of membrane fabrication and raw materials has been a drawback of energy-efficient separation technology using composite nanofiltration membranes. This study presents a facile fabrication method for a nanocomposite membrane using natural silkworm pupae protein as a binder, showing excellent mechanical and thermal stability. The composite membrane exhibited high solute rejection rates and adjustable molecular weight cutoff, demonstrating synergetic effects of 1D and 2D materials combined with a natural binder.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Wen-Hai Zhang, Ming-Jie Yin, Qiang Zhao, Cheng-Gang Jin, Naixin Wang, Shulan Ji, Cody L. Ritt, Menachem Elimelech, Quan-Fu An
Summary: The study presents a highly stable and ultrapermeable zeolitic imidazolate framework-8 (ZIF-8)-nanocrystal-hybridized graphene oxide membrane prepared using ice templating and in situ crystallization of ZIF-8. The selective growth of ZIF-8 in microporous defects enhances water permeability and mechanical integrity, leading to a 30-fold increase in permeability compared to graphene oxide membranes (GOms). The technique also improves permselectivity and offers potential for developing next-generation nanofiltration membranes.
NATURE NANOTECHNOLOGY
(2021)
Article
Engineering, Environmental
Leila Ghadiri, Leila Naji, Mehran Javanbakht
Summary: Phosphorated graphene oxide (PGO) was used to prepare a polyvinylidene fluoride (PVDF)-based cation-exchange membrane for electrodialysis. The effects of PGO weight percentage on the physicochemical and electrochemical characteristics of the PVDF/PGO membranes were investigated. The PVDF/PGO60 membrane exhibited superior properties compared to the PVDF/GO and Nafion membranes, including high water uptake, ion exchange capacity, permselectivity, and transport number.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Chemistry, Multidisciplinary
Lina Nie, Chong Yang Chuah, Tae-Hyun Bae, Jong-Min Lee
Summary: The research on organic solvent nanofiltration technology, especially using graphene-based membranes, has shown great potential in addressing the issue of excessive organic solvent waste. Future focus should be on the challenges and development directions of graphene-based membranes in industrial applications.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Engineering, Environmental
Shania Sharif, Khuram Shahzad Ahmad, Faisal Rehman, Zubeda Bhatti, Khalid Hussain Thebo
Summary: Membrane-based technology has gained significant interest for its potential applications in water purification and desalination, with two-dimensional graphene oxide (GO) and its derivatives being considered the most suitable material for membrane technology due to their exceptional properties. Challenges and future directions for such membranes will be discussed in detail.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Chemical
Tongrong Wu, Farhad Moghadam, Kang Li
Summary: In this study, nano-scale pores were created on graphene oxide nanosheets through mild chemical etching to improve water permeance and dye rejection performance in porous hollow fiber membranes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Review
Chemistry, Multidisciplinary
Stefania Castelletto, Alberto Boretti
Summary: Novel 2D carbon materials such as nanoporous single-layer graphene and multilayer graphene oxide membranes show great potential in various desalination approaches due to their high water permeability, selectivity, salt rejection, reduced fouling, and stability. Research on high-performance graphene membranes, initially focused on reverse osmosis applications, appears to be expanding towards other directions.
Article
Biochemistry & Molecular Biology
Hyuntak Kwon, Yongju Park, Euntae Yang, Tae-Hyun Bae
Summary: In this study, a high-performance GO-based nanofiltration membrane was developed by intercalating a strong covalent crosslinker into the laminated GO nanosheets, exhibiting outstanding structural stability and improved water permeability.
Article
Nanoscience & Nanotechnology
LinSheng Zhu, XiaoXin Guo, YunQiang Chen, Zhou Chen, YiHong Lan, Yubin Hong, WeiGuang Lan
Summary: This study developed a method to modify graphene oxide (GO) membranes by adding phytic acid (PhA), which improved hydrophilicity and enlarged interlamellar spacing. The resulting composite membrane showed high water permeability, rejection rate, and structural stability. This research provides insights into the design and application of GO-based membranes for water separation.
ACS APPLIED NANO MATERIALS
(2022)
Article
Engineering, Environmental
Siti Nur Hatika Abu Bakar, Hassimi Abu Hasan, Abdul Wahab Mohammad, Siti Rozaimah Sheikh Abdullah, Mohd Hafizuddin Muhamad
Summary: The study investigated the interaction among operating parameters of an MBBR treating POME to determine the optimal conditions for COD and NH3-N removal. The optimal parameters were found to be 70 h HRT, 29% MFF, and Hexafilter as the biofilm carrier, achieving COD removal of 53.3% and NH3-N removal of 91.8%. These results suggest a viable alternative to conventional POME treatment.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Chemistry, Applied
Wei Lun Ang, Woei Jye Lau, Yi Hong Tan, Ebrahim Mahmoudi, Abdul Wahab Mohammad
Summary: Membrane technology has become a main filtration process in water/wastewater treatment, and the use of branched macromolecules in membrane research is gaining increasing attention. This review summarizes recent advances in polymeric membrane synthesis and modification using these macromolecules, and discusses their potential, challenges, and commercialization in membrane applications.
SEPARATION AND PURIFICATION REVIEWS
(2023)
Review
Engineering, Environmental
Nor Naimah Rosyadah Ahmad, Wei Lun Ang, Yeit Haan Teow, Abdul Wahab Mohammad, Nidal Hilal
Summary: This review discusses the current application of nanofiltration (NF) membrane in wastewater treatment, emphasizing its use in water recycling and product recovery. The performance optimization and future prospects of NF in industrial wastewater treatment are also discussed.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Engineering, Multidisciplinary
Rosiah Rohani, Siti Aishah Basiron, Nurul Suraya Rosli, Izzati Izni Yusoff, Nadiah Khairul Zaman, Aina Izzati Md Rashid
Summary: The study used EPANET software to model a specific water treatment plant's water distribution network and simulate hydraulic and water quality analysis. It was found that the fluoride concentration in each node and link of the drinking water distribution network changes over time. The hydraulic status of physical and non-physical components of the network significantly affects the fluoride content in drinking water.
JURNAL TEKNOLOGI-SCIENCES & ENGINEERING
(2021)
Review
Chemistry, Multidisciplinary
Nur Syafiqah Farhanah Dzulkharnien, Rosiah Rohani
Summary: Nanotechnology has gained significant attention globally in the past few decades. Nanomaterials lack cell-interactive properties and can easily degrade due to synthetic polymers. Metallic nanoparticles have potential in inhibiting the growth of microorganisms. Hydrogels have been of interest in the biomedicine field due to their drug delivery and moist environment capabilities. Incorporating metallic nanoparticles into hydrogels from natural sources can increase therapeutic efficiency with fewer side effects. This review article provides insights into fabricated metallic nanocomposite hydrogels and their applications in biomedicine, while also discussing limitations for future exploration.
Review
Biochemistry & Molecular Biology
Rosiah Rohani, Nur Syafiqah Farhanah Dzulkharnien, Nurul Hidayah Harun, Iqma Asyila Ilias
Summary: The use of zinc oxide nanoparticles in surface coatings and films has gained increasing interest due to their ability to improve mechanical and antimicrobial properties. Incorporating ZnO NPs into synthetic or semi-synthetic or bio-based polymeric materials through various synthesis methods is a growing trend and has potential applications in surface coatings and films. Furthermore, ZnO NPs exhibit antimicrobial potential and can be used to prevent the spread of microorganisms, including the COVID-19 virus.
BIOINORGANIC CHEMISTRY AND APPLICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Dharshini Mohanadas, Puteri Mimie Isma Nordin, Rosiah Rohani, Nur Syafiqah Farhanah Dzulkharnien, Abdul Wahab Mohammad, Peer Mohamed Abdul, Suriani Abu Bakar
Summary: This study tested and compared the separation performance of different membranes for treating oily wastewater. The XT and MT membranes showed the best performance with high oil removal rate. However, wetting occurred in the membrane distillation method, causing flux reduction. Therefore, a membrane surface modification technique is required to improve the anti-fouling and anti-wetting properties of the membranes.
Review
Biochemistry & Molecular Biology
Nor Naimah Rosyadah Ahmad, Abdul Wahab Mohammad, Ebrahim Mahmoudi, Wei Lun Ang, Choe Peng Leo, Yeit Haan Teow
Summary: Due to the increasing demand for water resources, freshwater deficiency has become a significant issue affecting social and economic development in many countries. Nanofiltration (NF) is a promising technology for water reclamation, especially in desalination, water, and wastewater treatment fields. However, membrane fouling remains a major concern that hampers the performance of NF membranes and increases operating costs. This review summarizes recent progress in improving the resistance to fouling in NF membranes using three types of antifouling modifiers: nanoparticles, polymers, and composite polymer/nanoparticles. The review also discusses the correlation between antifouling performance and membrane properties such as hydrophilicity, surface chemistry, surface charge, and morphology.
Review
Environmental Sciences
Nuriah Zakaria, Rosiah Rohani, Wan Hanna Melini Wan Mohtar, Ronny Purwadi, Giovanni Arneldi Sumampouw, Antonius Indarto
Summary: Batik is a signature product of the Malay Archipelago, but the batik industry generates a large volume of wastewater containing dyes and chemicals. Finding effective and cost-efficient treatment methods for batik effluent is crucial to protect the environment and human health. This review explores various textile wastewater treatment techniques and their suitability for batik wastewater, including color removal and decolorization, as well as the advantages and disadvantages for domestic and industrial applications.
Article
Biochemistry & Molecular Biology
S. N. S. A. Aziz, M. N. Abu Seman, S. M. Saufi, A. W. Mohammad, M. Khayet
Summary: UV irradiation was used to modify a commercial NF2 PES membrane for the preparation of a forward osmosis (FO) membrane. The modified membrane showed improved hydrophilicity and increased water permeate flux compared to the pristine NF2 PES membrane. The intrinsic characteristics of the membranes were determined through various techniques and the adopted non-pressurized test method proved to be more suitable for evaluating FO membrane properties.
Review
Green & Sustainable Science & Technology
Dharshini Mohanadas, Rosiah Rohani, Yusran Sulaiman, Suriani Abu Bakar, Ebrahim Mahmoudi, Lai -Chang Zhang
Summary: Heavy metals are common water pollutants that can have severe impacts on human health, aquatic life, and ecosystems. Various techniques have been used to identify and monitor the level of pollutants in water sources. This review focuses on the properties and electrochemical performance of graphene and its derivatives, as well as the development of MXene and MXene-based composites for heavy metal detection, highlighting their catalytic activities and future outlook.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Energy & Fuels
Mohd Dzul Khairi Mohd Saparti, Rosiah Rohani, Wan Rosli Wan Sulaiman, Nurnadia Jamaluddin, Nadiah Khairul Zaman
Summary: Water-based muds (WBM) are commonly used in oil and gas wells drilling industry due to their eco-friendliness and cost-effectiveness. However, the hydration caused by the affinity of shale minerals to water from WBM leads to severe shale swelling issues, reducing the technical performance of WBM. In this study, graphene oxide (GO) was added to the drilling fluid formulation as an additive to improve drilling performance. The modified GO showed reduced fluid loss, improved rheology property, and enhanced thermal stability, making it a promising nano-additive for fluid loss control in drilling fluids.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Review
Engineering, Chemical
I. Ihsanullah, Muhammad Bilal, Muhammad Sajid, Abdul Wahab Mohammad, Muataz A. Atieh, Noreddine Ghaffour
Summary: This review critically summarizes the successful applications of MXene materials in the separation of oily emulsions. The unique characteristics of MXene materials position them as ideal candidates for oil/water separation applications. The paper evaluates the separation mechanisms, regeneration performance, stability, and durability of MXene-based materials and identifies current challenges and research gaps. Future prospects for advancing MXene-based oil/water separation technology are also presented.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Environmental
Chia-Huey Hong, Nor Naimah Rosyadah Ahmad, Choe Peng Leo, Abdul Latif Ahmad, Abdul Wahab Mohammad
Summary: Polymeric membranes play a crucial role in CCUS strategies, but their separation performance is limited by the solution-diffusion mechanism. Adding various additives can improve CO2 facilitated transport and enhance CO2 separation performance.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Chemical
Qing Han, Mengqing Shi, Linkai Han, Di Liu, Mingwei Tong, Yuxin Xie, Zhonghua Xiang
Summary: Developing highly efficient bifunctional oxygen electrocatalysts is crucial for zinc-air flow batteries. Metal-organic frameworks (MOFs) and covalent organic polymers (COPs) have emerged as promising alternatives due to their designable and controllable atomic-level structures. However, their catalytic performances are limited by conductivity and catalytic activity. In this study, nanosheet FeNi-MOF and iron phthalocyanine rich COP hybrid materials are assembled through the pi-pi stacking effect to create highly efficient bifunctional electrocatalysts. The resulting catalyst exhibits superior catalytic performance and stability, making it a promising candidate for zinc-air flow batteries.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Daria Grigorash, Dmytro Mihrin, Rene Wugt Larsen, Erling H. Stenby, Wei Yan
Summary: The article introduces a new approach to describe the cross-association between molecules, allowing for the simulation of weakly bound molecular complexes with different conformations in mixtures. By incorporating this approach into the equation of state, accurate predictions of vapor-liquid equilibrium and liquid-liquid equilibrium can be made. The new method is validated through experiments on alcohol and acid mixtures, with the results compared to experimental data, demonstrating its accuracy and reliability.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Mohammed Al-Sharabi, Daniel Markl, Vincenzino Vivacqua, Prince Bawuah, Natalie Maclean, Andrew P. E. York, Axel Zeitler
Summary: This study used terahertz pulsed imaging to investigate the transport process of different solvents into ceramic catalytic materials. The results showed that the heating rate of the samples influenced the water transport rate, while the viscosity of 1-octanol slowed down its transport.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Chukwunonso Anyaoku, Sati Bhattacharya, Rajarathinam Parthasarathy
Summary: This study aimed to enhance understanding of settling dynamics in viscoelastic fluids by developing a semi-empirical correlation and a dimensionless ratio, which accurately described the characteristics of settling suspensions.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Antti I. Koponen, Janika Viitala, Atsushi Tanaka, Baranivignesh Prakash, Olli-Ville Laukkanen, Ari Jasberg
Summary: This study focuses on the development of foam application chemicals for the paper and board industry. The research explores the rheology of the polyvinyl alcohol foam used in the process. Measurements were conducted to determine the foam viscosity and slip flow. The results suggest that slip flow contributes significantly to the total flow rate, and the obtained viscosity and slip models provide a solid foundation for industrial processes.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Dalei Sun, Jinghui Cai, Yating Yang, Zhiwu Liang
Summary: In this study, Fe-doped alpha-Bi2O3 catalysts with different Fe/Bi molar ratios were synthesized and utilized in the carbonylation of isobutyl amine with CO2. The results showed that Fe doping significantly enhanced the catalytic abilities of alpha-Bi2O3.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Yuan Tian, Xinxin Wang, Yanrong Liu, Wenping Hu
Summary: This paper predicts the solubility of nitrogen gas in ionic liquids (ILs) using two quantitative structure-property relationship (QSPR) models. By combining machine learning methods and ionic fragments contribution method, the accuracy and reliability of the prediction models are improved.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Liwang Wang, Wei Liu, Pan Yang, Yulong Chang, Xiaoxu Duan, Lingyu Xiao, Yaoming Hu, Jiwei Wu, Liang Ma, Hualin Wang
Summary: This study investigates the effective phase interfacial area (ae) of hydro-jet cyclones at different injection angles. The results show that a 45 degrees upward incidence angle yields the most favorable flow field characteristics for efficient mass transfer. The significant enhancement in ae of the hydro-jet cyclones offers the advantage of reducing equipment volume and cost savings.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Chuanjun Wu, Jiangzhi Chen, Jiyue Sun, I-Ming Chou, Shenghua Mei, Juezhi Lin, Lei Jiang
Summary: In this study, the solubility of H2S hydrate in water was measured using Raman spectroscopy. The results showed that the solubility increases with temperature under certain equilibrium conditions, and the solubility also depends on pressure and temperature under different equilibrium conditions. A thermodynamic model based on the van der Waals-Platteeuw theory was developed to predict the solubility, demonstrating its accuracy.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Lorenzo Brivio, Serena Meini, Mattia Sponchioni, Davide Moscatelli
Summary: This study investigates the influence of three main parameters and proposes a kinetic model to predict the optimal operating conditions for high yield of dimethyl terephthalate (DMT) in the chemical recycling process of polyethylene terephthalate (PET).
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Hongju Lin, Fanhui Liao, Yanchang Chu, Mingyu Xie, Lun Pan, Yuanyuan Wang, Lijian Leng, Donghai Xu, Le Yang, Gangfeng Ouyang
Summary: A honeycomb NiCo/C-Na catalyst with a micro-meso-macroporous structure has been fabricated and shown to have significantly higher catalytic activity for the decarboxylation of fatty acids. It also proves to be efficient in upgrading sludge HTL bio-crude, resulting in a biofuel with decreased viscosity and increased density.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Xiaoxian Li, Rui Li, Min Lin, Mingde Yang, Yulong Wu
Summary: A series of coated non-noble metal porous carbon catalysts were synthesized and applied to the aqueous-phase deoxygenation of algal bio-oil. One of the catalysts showed excellent deoxygenation selectivity and catalytic activity at 250 degrees C. The catalyst exhibited good hydrothermal stability and the reaction mechanism was proposed based on product analysis and active site analysis.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
M. V. Chudakova, M. V. Popov, P. A. Korovchenko, E. O. Pentsak, A. R. Latypova, P. B. Kurmashov, A. A. Pimenov, E. A. Tsilimbaeva, I. S. Levin, A. G. Bannov, A. V. Kleymenov
Summary: A series of catalysts with different potassium contents were prepared using solution combustion synthesis and characterized using various techniques. The results showed that the potassium content affected the phase composition and texture of the catalysts. The addition of a small amount of potassium resulted in a change in particle size distribution, leading to higher hydrogen yield. The Ni-1%K2O/Al2O3 catalyst exhibited the highest hydrogen yield at temperatures of 675 and 750 degrees Celsius.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Aliakbar Roosta, Nima Rezaei
Summary: In this study, we modified the electrolyte cubic plus association equation of state (e-CPA EoS) and integrated it with two electrical conductivity models to estimate the electrical conductivity of 11 monovalent electrolyte solutions in water. The modified e-CPA model demonstrated better performance and the hybridization with electrical conductivity models resulted in two predictive models for estimating the electrical conduction of dilute and concentrated electrolyte solutions. These predictive models showed relative average percentage deviations (AARD) of 11.15% and 13.87% over wide ranges of temperature and electrolyte concentration.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Haoren Niu, Jianzheng Wang, Qingzhu Jia, Qiang Wang, Jin Zhao, Fangyou Yan
Summary: A study developed two quantitative structure-property relationship models for the complexation performance of alpha- and beta-cyclodextrins and validated their stability and predictive ability through internal and external validation. The models showed robustness and satisfactory performance, as demonstrated by the experimental results and model validations. These models can effectively predict the binding constants between cyclodextrins and various types of molecules, providing valuable tools for cyclodextrin design.
CHEMICAL ENGINEERING SCIENCE
(2024)