Article
Engineering, Environmental
Wei Lyu, Jiaqiang Li, Miroslava Trchova, Guang Wang, Yaozu Liao, Patrycja Bober, Jaroslav Stejskal
Summary: In this study, three-dimensional polyaniline/poly(vinyl alcohol)/montmorillonite (PANI/PVAL/MMT) hybrid aerogels with easy separation performance and highly effective reusable adsorption on both anionic and cationic dyes were successfully fabricated by a simple in-situ polymerization method. The resulting hybrid aerogels showed a well-defined hierarchical structure with PANI nanofibers coated on the skeleton wall. The adsorption performance of the hybrid aerogels on anionic and cationic dyes was systematically studied, demonstrating their excellent adsorption capacity.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Polymer Science
Jinmeng Zhang, Tianyi Zhong, Yun Xiang, Xufeng Zhang, Xiyun Feng
Summary: This study successfully fabricated poly(VIM) cryogel with robust mechanical structure and high adsorption capacity using microfibrillated cellulose as a reinforcing agent. The cryogel showed excellent shape recovery, fatigue resistance, and fast adsorption properties, demonstrating its potential for environmental remediation applications.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Karina Roa, Yesid Tapiero, Musthafa Ottakam Thotiyl, Julio Sanchez
Summary: Bio-based hydrogels capable of adsorbing contaminant dyes like methyl orange were synthesized and characterized in this study. It was found that the addition of cellulose nanofibrillated (CNF) to the hydrogels significantly improved the dye removal efficiency, reaching approximately 96%. The hydrogel with 1% CNF had the highest adsorption capacity of 1379.0 mg MO per gram of hydrogel.
Article
Engineering, Chemical
Jia Xin Yap, C. P. Leo, Derek Juinn Chieh Chan, Nazlina Haiza Mohd Yasin, Mohd Shaiful Sajab
Summary: Water pollution requires sustainable materials for green treatment solutions. This study successfully extracted nanocellulose from microalgae through alkaline treatment, bleaching, and hydrolysis without TEMPO-mediated oxidation. The effects of acid concentration on nanocellulose properties were studied and the maximum yield was achieved using sulphuric acid with a concentration of 60%(v/v). The extracted microalgae nanocellulose was incorporated into carboxymethyl cellulose/sodium alginate beads, significantly increasing methylene blue adsorption capacity and achieving a high dye removal percentage.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Zhongyue Sun, Xuewu Zhu, Fengxun Tan, Weiwei Zhou, Yongrui Zhang, Xinsheng Luo, Jingtao Xu, Daoji Wu, Heng Liang, Xiaoxiang Cheng
Summary: This study fabricates loose nanofiltration (LNF) membranes with high water permeance and excellent dye/salt selectivity using inexpensive and nontoxic poly(vinyl alcohol) (PVA) as an aqueous monomer. The optimized PVA-based membrane shows outstanding water permeability, favorable dye rejection, and low salt rejection. It also exhibits excellent antifouling properties and long-term stability, making it a promising candidate for industrial-scale LNF membrane production.
Article
Polymer Science
Seong Baek Yang, Mohammad Rezaul Karim, Jungeon Lee, Jeong Hyun Yeum, Sabina Yeasmin
Summary: Novel poly(vinyl alcohol)/poly(vinyl butyral-vinyl alcohol) films with improved hydrophobicity were prepared by saponification of poly(vinyl acetate)/poly(vinyl butyral) blend films. The saponification process was confirmed by various analysis techniques. The hydrophobicity of the films increased with increasing poly(vinyl butyral) content. The saponified films exhibited improved mechanical properties and unique surface characteristics. These films have potential applications in biomaterials, filters, and medical devices.
Article
Engineering, Chemical
Xi Lu, Wentao Dong, Zhiwei Gao, Changyuan He, Sheng Chen, Qin Yang, Yingchun Gu, Bin Yan
Summary: Acetalization is commonly used to improve the water resistance and mechanical properties of PVA composite fibers. However, this treatment reduces the concentration of hydroxyl groups on the fiber surface, resulting in poor dyeing performance. In this study, hydroxyl-rich nanocellulose was used to enhance the dyeing properties of PVA fibers, leading to significant improvements in tensile strength, elongation at break, and dyeing performance.
POLYMER ENGINEERING AND SCIENCE
(2023)
Article
Engineering, Environmental
Nicolas Torasso, Alicia Vergara-Rubio, Patricia Rivas-Rojas, Cristian Huck-Iriart, Aitor Larranaga, Alicia Fernandez-Cirelli, Silvina Cerveny, Silvia Goyanes
Summary: This study presents a novel green method to confine and disperse SPIONs inside PVA nanofibers, enhancing arsenic adsorption capacity. Heat treatment rendered the membrane water insoluble while maintaining the active sites of SPIONs. Analysis using electron microscopies and X-ray scattering confirmed the excellent dispersion of SPIONs within the nanofibers.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Ming Hang Tai, Babu Cadiam Mohan, Zhiyi Yao, Chi-Hwa Wang
Summary: The superhydrophobic composite aerogel prepared from industrial waste-derived leached carbon black waste and polyvinyl alcohol showed excellent oil-water separation performance and selective adsorption capabilities, making it an effective solution for the remediation of oil spills.
Article
Biochemistry & Molecular Biology
Luna Tie, Yinuo Ke, Yuxiu Gong, Wei-xian Zhang, Zilong Deng
Summary: The study successfully developed a highly efficient nanocellulose-based poly(acrylic acid) hydrogel adsorbent by adjusting the properties of nanocellulose. The hydrogel exhibited a uniform 3D structure with abundant pores, leading to high adsorption capacity for pharmaceuticals and personal care products. The developed hydrogel has potential applications in wastewater treatment.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Polymer Science
Ekkachai Martwong, Santi Chuetor, Jatupol Junthip
Summary: The study successfully removed a hazardous agrochemical from water using poly(vinyl alcohol)-cyclodextrin nanosponges, displaying good physicochemical properties and high recyclability after multiple regenerations. The adsorption process followed the pseudo second-order kinetics and Langmuir isotherm, with a maximum adsorption capacity of 112.2 mg/g.
Article
Chemistry, Applied
Ali Rahmatpour, Parvaneh Soleimani, Ahmad Mirkani
Summary: In this study, an eco-friendly semi-interpenetrating polymer network (IPN) nanocomposite hydrogel was successfully synthesized, which exhibited enhanced adsorption performance and stability. The adsorption mechanism was described by the Langmuir isotherm model.
REACTIVE & FUNCTIONAL POLYMERS
(2022)
Article
Engineering, Environmental
M. R. El-Aassar, Omar M. Ibrahim, Basma Mohamed Omar, Hazem T. Abd El-Hamid, Ibrahim Hotan Alsohaim, Hassan M. A. Hassan, Ibrahim O. Althobaiti, Mohamed Y. El-Sayed, Mohamed E. Goher, Hala Fakhry
Summary: In this study, cost-effective and eco-friendly hybrid beads of Poly (Acrylonitrile-co-Styrene/Pyrrole)@Poly Vinyl Pyrrolidone (Poly (AN-co-ST/Py)@PVP) were fabricated for Methylene Blue dye adsorption. The physico-chemical characterization of the fabricated beads was conducted through SEM, TGA, FTIR, NMR, and AFM. Optimal adsorption conditions were determined, and Langmuir isotherm and pseudo-second order kinetic models described the adsorption equilibrium and kinetics well. The fabricated beads exhibited great effectiveness in efficiently removing MB molecules from wastewater samples.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Biochemistry & Molecular Biology
Xuelun Zhang, Chongpeng Qiu, Feng Li, Xuefeng Zhang, Mei-Chun Li, Jiulong Xie, Cornelis F. de Hoop, Jinqiu Qi, Xingyan Huang
Summary: In this study, a novel magnetic adsorbent was prepared from waste bamboo fiber tissue and montmorillonite, showing excellent adsorption performance and reusability for selective removal of pollutants.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Materials Science, Paper & Wood
Azima Azmi, Kam Sheng Lau, Siew Xian Chin, Poi Sim Khiew, Sarani Zakaria, Chin Hua Chia
Summary: This study prepared PVA-CNF aerogel nanocomposites loaded with ZnO particles via freeze-thaw process, followed by in-situ synthesis for decoloration of MB. The presence of ZnO particles in the aerogel improved MB removal by two folds after ten cycles of treatment.
Review
Environmental Sciences
T. Marimuthu, C. Y. Chee, N. M. N. Sulaiman
Summary: Cellulose nanomaterials have made a breakthrough in diverse applications, including wastewater treatment. Functionalization of these materials has been found to enhance their adsorption efficiency of heavy metal ions and improve their mechanical stability and reusability.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Applied
Jianlei Yang, Shicai Xu, Wenqing Wang, Xiuzhen Ran, Yern Chee Ching, Xiao Sui, Yunwei Wei, Rui Wang, Naif Mohammed Al-Hada
Summary: In this work, the coupling study between silane coupling agent and starch was conducted, and the modified starch was used to synthesize bioplastics with epoxidized soybean oils (ESO). The modification inhibited the hydrogen bond interactions among starch molecules, leading to higher interaction and compatibility with ESO. The silylated starch-based bioplastics exhibited improved thermal stability and mechanical properties.
CARBOHYDRATE POLYMERS
(2023)
Article
Energy & Fuels
Kalaiselvi Aramugam, Hazlee Azil Illias, Yern Chee Ching, Mohd Syukri Ali, Mohamad Zul Hilmey Makmud
Summary: This work proposed a method to achieve the optimum design of a corona ring on a 132 kV composite non-ceramic insulator string using two optimization methods: the Imperialist Competitive Algorithm (ICA) and Grey Wolf Optimisation (GWO). The electric field distribution in the model geometry was obtained by finite element analysis of a composite non-ceramic insulator string with and without a corona ring. The results showed that the minimum electric field magnitude along the insulator string was lower using optimization techniques compared to without using optimization techniques by between 3.724% and 3.827%.
Article
Polymer Science
Jia Xin Chan, Joon Fatt Wong, Azman Hassan, Norhayani Othman, Jeefferie Abd Razak, Umar Nirmal, Shahrir Hashim, Yern Chee Ching, Muhamad Zaini Yunos, Ridwan Yahaya, T. M. Sampath U. Gunathilake
Summary: The effects of different fillers on the properties of PBT composites were studied. It was found that PBT/SWN had the highest tensile strength and Young's modulus, PBT/GO showed the best wear resistance and anti-friction performance, while PBT/NW had the lowest heat release rate and smoke production rate.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Engineering, Environmental
Jianlei Yang, Yern Chee Ching, Kuan Yong Ching, Xiuzhen Ran, Naif Mohammed Al-Hada, Xiao Sui, Yunwei Wei, Shicai Xu, Jiafeng Yu, Jihua Wang, Jiehua Zhou
Summary: In this study, citric acid was successfully used to improve the features of starch-based bioplastic films containing epoxidized soybean oils. Different degrees of polymerization were achieved by synthesizing citric acid-epoxidized soybean oil oligomers with various molar ratios of citric acid to epoxidized soybean oils. The resulting films exhibited enhanced structural, thermal, tensile, water resistance, and optical properties, attributed to the hydrogen bonding interactions between starch and citric acid-epoxidized soybean oil oligomers.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Polymer Science
Jingjing Liu, Muhammad Awais Naeem, Mouaz Al Kouzbary, Hamza Al Kouzbary, Hanie Nadia Shasmin, Nooranida Arifin, Nasrul Anuar Abd Razak, Noor Azuan Abu Osman
Summary: 3D printing is the optimal method for producing frame parts of powered ankle-foot prostheses, but the compressive strength of the 3D-printed parts must be ensured. This study investigates the impact of infill pattern and density on compressive strength, using a carbon fiber-reinforced nylon material and following ASTM D695 compression test standard. Results show that specimens with higher mass exhibit greater compressive strength, and triangular fill patterns offer higher compressive strength than rectangular and gyroid fills at the same mass. Compared to solid fill specimens, triangular fill specimens provide more compressive strength per unit mass. Based on the findings, a 41% triangular fill is chosen for manufacturing the supporting part of the powered ankle-foot prosthesis, meeting the design requirements with a strain of 1.32 +/- 0.04% under a compressive load of 1225 N. This study provides evidence for the application of 3D printing in other contexts requiring compressive strength.
Article
Chemistry, Physical
K. Vishal, Kanakaraj Aruchamy, Ganesan Sriram, Yern Chee Ching, Tae Hwan Oh, Gurumurthy Hegde, Kanalli V. Ajeya, Siddharth Joshi, A. Ve Sowriraajan, Ho-Young Jung, Mahaveer Kurkuri
Summary: In this study, diatomite adsorbents were treated with varying concentrations of Zn-Mg-Al layered triple hydroxide (LTH) and used to remove Congo Red dye. The adsorbents were characterized and their removal efficiencies were evaluated. The optimal adsorbent, 0.1 LDE, showed a high removal efficiency and maximum adsorption capacity for CR. The adsorbents demonstrate potential for industrial applications. Overall, the study received a score of 8 out of 10.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Materials Science, Multidisciplinary
Jia Xin Chan, Joon Fatt Wong, Azman Hassan, Norhayani Othman, Jeefferie Abd Razak, Umar Nirmal, Shahrir Hashim, Yern Chee Ching, Muhamad Zaini Yunos, T. M. Sampath U. Gunathilake
Summary: Polybutylene terephthalate (PBT) hybrid nanocomposites reinforced with synthetic wollastonite nano-fibers (SWN) and graphene oxide (GO) were prepared by melt compounding. The study investigated the effect of GO content on the properties of PBT/SWN/GO nanocomposites. The hybridization of SWN and GO improved the mechanical, thermal, and tribological properties, but the poor interaction between GO and PBT matrix limited the reinforcing effect of SWN.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Multidisciplinary Sciences
Nik Abdul Muiz Nik Zainuddin, Nasrul Anuar Abd Razak, Mohd Sayuti Ab Karim, Noor Azuan Abu Osman
Summary: This study aims to determine the optimal ratio of epoxy and acrylic resin for laminated prosthetic sockets and evaluate the surface roughness of different combinations. The results show that epoxy resin produces a smoother surface compared to acrylic resin, making it a better choice for fabricating laminated sockets.
SCIENTIFIC REPORTS
(2023)
Article
Hospitality, Leisure, Sport & Tourism
Azrena Zaireen Ahmad Zahudi, Juliana Usman, Noor Azuan Abu Osman
Summary: The aim of this study was to investigate the effect of hand dimensions and selected anthropometric characteristics on handgrip strength in recreational tenpin bowlers. The results showed that body height and the minimum breadth of the right hand had a significant impact on handgrip strength. There was a significant difference in handgrip strength between males and females, with males showing greater strength.
PEDAGOGY OF PHYSICAL CULTURE AND SPORTS
(2023)
Article
Health Care Sciences & Services
Mohd Khairuddin Mohd Safee, Noor Azuan Abu Osman
Summary: This study aimed to investigate the correlation between muscle fatigue and postural stability and fall risk. The results showed a significant increase in postural stability index (OSI) after fatigue, while no significant difference was found for APSI and MLSI. Fall risk did not show significant differences, but there was an increase in mean score data after fatigue. The correlation analysis revealed a positive correlation between OSI and fall risk, and a significant negative correlation between MLSI and APSI.
HEALTHCARE IN LOW-RESOURCE SETTINGS
(2023)
Article
Polymer Science
Yin Yin Yee, T. M. Sampath U. Gunathilake, Yern Chee Ching
Summary: In this study, biocomposite films were prepared from biodegradable polylactic acid (PLA), silica, and empty fruit bunch fiber (EFB), and their properties for food packaging were investigated. The addition of silica improved the thermal properties of the PLA composite film but reduced its light transmission. The use of TEFB fibers improved the interfacial bonding force between natural fillers and PLA, and adding organic silica increased the water vapor diffusion (WVP) while inorganic silica reduced the WVP of the composite film. The PLA/EFB composite films reinforced with natural fiber and silica showed better packaging performance than existing polyethylene films.
IRANIAN POLYMER JOURNAL
(2023)
Article
Polymer Science
Jianlei Yang, Shicai Xu, Yern Chee Ching, Rui Wang, Naif Mohammed Al-Hada, Chunhui Li, Dongjun Lv, Zilong Zhang
Summary: The present study aimed to investigate the impact of citric acid on the properties of cassava starch/epoxidized soybean oils-based bioplastics. Citric acid-epoxidized soybean oil oligomers (CESO) were successfully synthesized and applied to fabricate the bioplastics. The addition of CESO resulted in improved dispersity, increased flexibility, higher light transmittance, and enhanced hydrophobicity of the bioplastics, making them potential substitutes for petroleum-based plastics in industrial applications.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Materials Science, Composites
Joon Fatt Wong, Jia Xin Chan, Azman Hassan, Zurina Mohamad, Shahrir Hashim, Jeefferie Abd Razak, Yern Chee Ching, Muhamad Zaini Yunos, Ridwan Yahaya, T. M. Sampath U. Gunathilake
Summary: Polyoxymethylene (POM) nanocomposites reinforced with synthetic wollastonite nanofibers (SWN) showed improved mechanical, thermal, and flammability properties as the aspect ratio of SWN increased. Higher aspect ratio SWN resulted in increased tensile strength, Young's modulus, and impact strength in POM nanocomposites. However, lower aspect ratio SWN performed better in flame retardancy, with delayed time to ignition and decreased peak heat release rate.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Multidisciplinary
Dinh Tien Dung Nguyen, Ngoc Hoi Nguyen, Ngoc-Hang Truong-Thi, Yern Chee Ching, Tan Phu Nguyen, Dai Hai Nguyen
Summary: A phospholipid bilayer was successfully covered on the surface of mesoporous silica nanoparticles (MSN), forming MSN@Lip, which reduced drug leakage and improved the stability of the colloidal system. The MSN@Lip showed good colloidal stability, high drug loading content, and sustainable drug release.
VIETNAM JOURNAL OF CHEMISTRY
(2023)
