Article
Agronomy
Widiastuti Setyaningsih, Karmila, Rohmah Nur Fathimah, Muhammad Nur Cahyanto
Summary: Ultrasound-assisted extraction (UAE) has been optimized for cassava starch production, resulting in higher yield and lower viscosity compared to conventional methods. The Box-Behnken design combined with response surface methodology (RSM) effectively predicts and achieves the optimal extraction conditions, demonstrating the potential for starch modification to maintain viscosity at lower values.
Article
Construction & Building Technology
Kadir Gelis, Eda Feyza Akyurek
Summary: Efficient use of energy is crucial for reducing energy costs and environmental pollution. The study investigates the effects of panel radiator type, operating temperature, and flow rate on heat transfer coefficient and entropy generation. The findings indicate that the most important parameter for total heat transfer coefficient is the volumetric flow rate, while the number of panels is the most effective parameter for entropy generation.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Engineering, Environmental
Anna Grzegorska, Jakub Karczewski, Anna Zielinska-Jurek
Summary: In this study, a novel Cu/TiO2/Ti3C2 composite with high photocatalytic activity for the degradation of carbamazepine (CBZ) under simulated solar light was obtained for the first time using a hydrothermal method in a water/ethanol environment. The synthesis parameters were optimized using the Box-Behnken factorial design coupled with Response Surface Methodology (RSM). The water/ethanol ratio was found to be the most influential parameter for the growth of anatase crystallite and the efficiency of CBZ degradation. Furthermore, surface modification with copper resulted in improved photocatalytic activity, and combining the photodegradation process with the activation of peroxymonosulphate (PMS) by Cu-TiO2/Ti3C2 further enhanced the degradation of CBZ under simulated solar light irradiation.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Green & Sustainable Science & Technology
Yaohui You, Liu Yang, Xubing Sun, Hong Chen, Heng Wang, Nanqiu Wang, Siqin Li
Summary: In this study, a novel tannin-based flocculant (TCCs) was synthesized and successfully grafted onto cationic starch-based flocculants (CCs). Various analyses confirmed the grafting of tannin onto the CCs skeleton. TCCs exhibited excellent harvesting performance at low dosages and had better reflocculation ability. The introduction of tannin allowed TCCs to combine with specific proteins and form compact flocs, leading to dosage savings and improved harvesting efficiency.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Hao Bian, Jiang Wan, Tariq Muhammad, Gehui Wang, Li Sang, Lingling Jiang, Huadong Wang, Yinjie Zhang, Cheng Peng, Wei Zhang, Xinde Cao, Ziyang Lou
Summary: The study successfully stabilized Cr(VI) in soil using nZVI modified with cationic polyquaternium-7 (M550-nZVI) or anionic carboxymethyl cellulose (CMC-nZVI). M550-nZVI showed better resistance to oxidation, while CMC-nZVI exhibited higher reactivity and achieved a higher removal rate of Cr(VI).
ENVIRONMENTAL POLLUTION
(2021)
Article
Materials Science, Multidisciplinary
Yahia F. Makableh, Hani Alzubi, Ghassan Tashtoush
Summary: A nanostructured antireflective coating was designed and optimized for Si solar cells using response surface methodology, with zinc oxide nanoparticles identified as the best candidate for minimizing reflection values and improving overall optical performance. The study established optimum conditions for reducing surface reflections and enhancing light absorption efficiency in silicon solar cells.
Article
Engineering, Environmental
Bingcong Zhang, Bifei Mao
Summary: In this study, a novel magnetic starch-grafted-cationic polyacrylamide composite (MAG@ST-g-CPAM) was developed as a flocculant for algae harvesting. The efficiency of the composite was compared to other flocculants, and the optimal feeding ratios and impacting factors were determined. The MAG@ST-g-CPAM flocculant showed superior harvesting efficiencies and facilitated water reuse through the elimination of fulvic acids.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Review
Engineering, Multidisciplinary
Ibham Veza, Martin Spraggon, I. M. Rizwanul Fattah, Muhammad Idris
Summary: Response Surface Methodology (RSM) is a statistical method based on design of experiments (DOE) to optimize process variables. A comprehensive review on RSM for biofuels and internal combustion engines (ICEs) is difficult to find, thus this article aims to provide a fresh perspective on the application of RSM for biofuel in ICE and critically review its optimization of engine performance and emissions. Despite drawbacks, RSM has advantages in designing and optimizing biofuel for ICE with satisfactory accuracy, contributing to the development of sustainable energy transition.
RESULTS IN ENGINEERING
(2023)
Article
Energy & Fuels
Saba Amiri, Vahid Vatanpour, Tao He
Summary: This study explores the effective parameters in the oxidation process of As(III) using H2O2, O3, and Cl2 oxidants. The results show that Cl2 oxidant achieves the highest percentage of As(III) oxidation compared to O3 and H2O2 oxidants. Time, oxidant type, and oxidant dosing are the most important factors affecting the oxidation efficiency, while pH has a slight effect. The optimal oxidation conditions are an oxidant dosing ratio of 1.89, pH of 7.75, and a time of 4.06 minutes using Cl2 oxidant. The validation experiments confirm the high oxidation efficiency of the optimal conditions for As(III) concentration of 5 mg/L in well water samples.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
Article
Thermodynamics
Oussama Rejeb, Mohamed S. Yousef, Chaouki Ghenai, Hamdy Hassan, Maamar Bettayeb
Summary: This study proposes an innovative statistical model using the response surface methodology to analyze a batch solar behavior still. It determines the most influential input factors affecting water productivity, establishes a polynomial regression model for prediction, and validates the model's fitting. The results indicate the importance ranking of water depth, solar radiation, ambient temperature, and thickness of insulation on distilled water quantity from solar stills.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Engineering, Environmental
Taibeh Tamoradi, Ali Reza Kiasat, Hojat Veisi, Valiollah Nobakht, Zahra Besharati, Bikash Karmakar
Summary: In this study, a magnetically reusable hybrid nanocatalyst of basic nature was designed for the production of biodiesels by transesterification of waste corn oil and rapeseed oil in presence of methanol. The catalyst can be magnetically retrieved easily and reused five times without considerable loss in its reactivity in the transesterification reaction.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Biochemistry & Molecular Biology
Laili Azmiati Arni, Ahmad Hapiz, Ahmed Saud Abdulhameed, Tumirah Khadiran, Zeid A. ALOthman, Lee D. Wilson, Ali H. Jawad
Summary: A magnetic chitosan grafted-benzaldehyde (CS-BD/Fe3O4) was synthesized as a promising adsorbent for acid red 88 (AR88) dye removal. The variables influencing AR88 dye adsorption were studied using the Box-Behnken design, and the adsorption profiles were described by the Temkin model and pseudo-first-order kinetics model. The CS-BD/Fe3O4 demonstrated high adsorption capacity (154.1 mg/g) and various mechanisms, such as electrostatic attraction and π-π interaction, were involved in the adsorption process. This research highlights the potential of CS-BD/Fe3O4 as an effective bio-adsorbent for azo dye removal from contaminated wastewater.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Biochemistry & Molecular Biology
E. Ataallahi, H. Naderi-Manesh, R. Roostaazad, S. Yeganeh
Summary: Purification of extracellular alpha-amylase from Bacillus subtilis was achieved through fractional precipitation by acetone and ion exchange chromatography, resulting in improved enzyme purity, activity, and stability. The optimization of operation parameters using response surface methodology was crucial in achieving high yield and purification fold.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Biochemistry & Molecular Biology
Ilona Trawczynska, Sylwia Kwiatkowska-Marks
Summary: This study investigated the biosorption of copper ions on alginate beads as a solution to copper-containing wastewater. The diffusion coefficient (D-e) was determined based on different alginate content, temperature, and pH values. Optimum operating conditions for biosorption were achieved, and the maximum value of D-e was found.
Article
Agriculture, Multidisciplinary
S. K. Manirul Haque
Summary: This study aimed to extract pectin from various fruit peels and evaluate the effects of different experimental conditions. The results showed that high-quality pectin could be extracted from fruit peel waste, which has potential applications in various fields.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Article
Chemistry, Inorganic & Nuclear
Umie F. M. Haziz, Rosenani A. Haque, Shun-Ze Zhan, Mohd R. Razali
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2020)
Article
Chemistry, Applied
Umie F. M. Haziz, Rosenani A. Haque, Shun-Ze Zhan, Hassan H. Abdallah, Mohd R. Razali
APPLIED ORGANOMETALLIC CHEMISTRY
(2020)
Article
Chemistry, Inorganic & Nuclear
Umie Fatihah Mohamed Haziz, Rosenani A. Haque, Amirul Al-Ashraf Abdullah, Mohd R. Razali
JOURNAL OF COORDINATION CHEMISTRY
(2020)
Article
Chemistry, Physical
Tabinda Fatima, Rosenani A. Haque, Ashfaq Ahmad, Loiy Elsir Ahmed Hassan, Mohamed B. Khadeer Ahamed, A. M. S. Abdul Majid, Mohd R. Razali
JOURNAL OF MOLECULAR STRUCTURE
(2020)
Article
Chemistry, Physical
Umie F. M. Haziz, Rosenani A. Haque, A. . A. . Amirul, Mohd R. Razali
Summary: The synthesis, characterization, and antibacterial studies of a series of bisbenzimidazolium salts and their silver(I)-NHC complexes were reported. These compounds were successfully synthesized through various reaction methods, and the silver(I)-NHC complexes showed strong antibacterial activities against E.coli and S.aureus.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Polymer Science
Suhawati Ibrahim, Nadras Othman, Krishna Veni Baratha Nesan, Fatimah Rubaizah Mohd Rasdi
Summary: In this study, the degradation of epoxidized natural rubber (ENR50) was induced under UV light, with hydrogen peroxide (H2O2) and titanium dioxide (TiO2) as catalysts. The chemical structure of LENR was mainly determined by H2O2 and TiO2. The molecular weight of ENR50 decreased significantly after 24 and 48 hours of photodegradation under UV light.
IRANIAN POLYMER JOURNAL
(2022)
Article
Biochemistry & Molecular Biology
Enis Nadia Md Yusof, Mohammad Azam, Siti Syaida Sirat, Thahira B. S. A. Ravoof, Alister J. Page, Abhi Veerakumarasivam, Thiruventhan Karunakaran, Mohd Rizal Razali
Summary: A novel series of transition metal complexes were synthesized using S-4-methylbenzyl-beta-N-(2-methoxybenzylmethylene)dithiocarbazate ligand. The compounds were characterized and evaluated for their cytotoxic behavior. Complex 2 showed promising results against cancer cell lines MCF-7 and MDA-MB-213.
BIOINORGANIC CHEMISTRY AND APPLICATIONS
(2022)
Article
Polymer Science
N. R. Mohamed, N. Othman, R. K. Shuib
Summary: This study investigates the potential of using sunflower oil and soybean oil as bio-based processing oils in producing greener tyre treads. The results show that bio-based oil compounds have advantages over mineral oil compounds in terms of processing safety, crosslinking density, and mechanical properties.
JOURNAL OF RUBBER RESEARCH
(2022)
Article
Chemistry, Organic
Umie F. M. Haziz, Rosenani A. Haque, Takumi Konno, Yoshinari Nobuto, Mohd R. Razali
Summary: This study reports the synthesis of seven new mononuclear gold(I)-N-heterocyclic carbene complexes. The successful formation of these complexes was confirmed by various analysis methods. Complex 3 exhibited weak blue emission under UV light, and the luminescence became more intense at low temperature.
POLYCYCLIC AROMATIC COMPOUNDS
(2023)
Article
Chemistry, Physical
Nurul Azmi, Shun-Ze Zhan, Mohd R. Razali
Summary: In this study, two dinuclear terbium complexes with anthracene and pyrroloanthracene derivatives were synthesized and their properties were characterized by crystal structure determination and spectroscopic analysis.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Inorganic & Nuclear
Nuraddeen Abdurrahman, Ahmad Mudzakir, Huda Hisham Alkatib, Sreenivasan Sasidharan, Mohd. R. Razali
Summary: Through self-assembly, trinuclear carbene complexes with potential anticancer activity were prepared and their structures were investigated.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2022)
Article
Polymer Science
Nabil Hayeemasae, Abdulhakim Masa, Nadras Othman, Indra Surya
Summary: Natural rubber (NR) is incompatible with hydrophilic additives, but the addition of silane coupling agents greatly improves the properties of NR/HNT composites, including modulus, tensile strength, and tear strength. Among the four different silanes tested, AEAPTMS is found to be the most viable choice. The strain-induced crystallization (SIC) of the composites is substantially aided by the corresponding silanes.
Article
Engineering, Chemical
Abdul Rehman, Hanafi Ismail, Noor Faezah Mohd Sani, Noor Aishatun Majid, Nadras Othman, Raa Khimi Shuib
Summary: Polymethylmethacrylate-co-methacrylic acid (PMMA-co-MAA) was used to modify the surface of silica for reinforcement in self-healing natural rubber. The optimized PMMA-co-MAA was investigated in NR/silica composites with different filler loadings. The graft polymerization of PMMA-co-MAA on silica was confirmed, and intermolecular diffusion at the fractured area was detected. The composite tensile and tear performance increased significantly with varying healing efficiency depending on the silica loading.
POLYMER ENGINEERING AND SCIENCE
(2023)
Review
Polymer Science
Nur Raihan Mohamed, Nadras Othman, Raa Khimi Shuib, Nabil Hayeemasae
Summary: Bio-based oils, such as palm oil, soybean oil, castor oil, sunflower oil, and linseed oil, are being considered as alternatives to petroleum-based processing oils in the rubber industry due to their environmental benefits. However, their limited use is attributed to their low thermo-oxidation stability and hydrolytic stability. Nonetheless, modifying the carbon-carbon double bond in bio-based oils can enhance the processability and mechanical properties of rubber composites. This study evaluates the cure properties and performance of rubber composites with unmodified and modified bio-based oils.
IRANIAN POLYMER JOURNAL
(2023)
Article
Materials Science, Composites
Abdul Rehman, Hanafi Ismail, Noor Faezah Mohd Sani, Nadras Othman, Noor Aishatun Majid, Atif Islam, Raa Khimi Shuib
Summary: This study explores the reinforcement effect of halloysite nanotubes (HNTs) in self-healing natural rubber based on metal thiolate ion networks. The results show that the addition of HNTs can significantly improve the mechanical performance and self-healing efficiency of the rubber material.
POLYMER COMPOSITES
(2023)
