Article
Biochemistry & Molecular Biology
Tiantian Liu, Zhen Wang, Xinrui Wang, Guihua Yang, Yu Liu
Summary: A novel 3-D biopolymer-based adsorption-photocatalytic composite, polyaniline/dicarboxyl acid cellulose@graphene oxide, was synthesized and applied for the removal of reactive brilliant red K-2G from aqueous solution. The composite showed excellent adsorption and photocatalysis performance, reaching high removal capacities in both adsorption-photocatalysis and simultaneous processes. The study suggests that the composite has great potential for treating dye-polluted wastewater.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Engineering, Environmental
H. K. Melvin Ng, G. K. Lim, C. P. Leo
Summary: The study immobilized N-doped CDs (NCDs) in polyvinyl alcohol (PVA) thin films for tartrazine detection, investigating the effects of film properties on their photoluminescence. Excessive NCDs in the PVA solution led to self-quenching, which could be reduced by adding copolymer DMAEMA.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Applied
Annelies E. Blok, Dieuwerke P. Bolhuis, Krassimir P. Velikov, Markus Stieger
Summary: In this study, dried microfibrillated cellulose (MFC) particles were prepared by spray-drying MFC dispersions in a surplus of maltodextrin to prevent degradation of properties. The effect of MFC particle concentration and MFC:maltodextrin ratio on rheological, tribological and sensory texture properties of liquid foods was evaluated. The results showed that low MFC:maltodextrin particles effectively improved rheological properties, thickness, and creaminess of the foods. Therefore, spray-dried MFC particles can be used as a thickener or fat replacer in liquid foods.
FOOD HYDROCOLLOIDS
(2023)
Article
Environmental Sciences
The Ky Vo
Summary: In this study, mesoporous microspheres of Al2O3 @TiO2 with improved adsorption and photocatalytic performance were successfully prepared. The incorporation of amorphous γ-Al2O3 was found to enhance the removal of tetracycline and promote the separation and migration of photo-generated holes and electrons. The study provides a simple and scalable method for manufacturing Al2O3-decorated TiO2 microspheres.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Zhenyu Zhang, Anran Li, Haining Na, Fei Liu, Jin Zhu
Summary: In this study, amino-enriched g-C3N4 was used as a solid base to prepare micro-fibrillated cellulose (MCF) through the synergistic action with acid under microwave irradiation. The obtained MCF showed excellent adsorption ability and efficient photocatalytic degradation.
Article
Polymer Science
Ximena Jaramillo-Fierro, Sneyder Gaona, John Ramon, Eduardo Valarezo
Summary: In this study, GP and GTA geopolymeric materials were prepared and characterized. The compounds showed high adsorption capacity and photocatalytic activity for the degradation of MB dye. The incorporation of ZnTiO3/TiO2 in the geopolymeric matrix allowed GTA to achieve higher overall efficiency compared to GP, combining adsorption and photocatalysis. The synthesized compounds could be used for multiple cycles for the removal of MB from wastewater.
Article
Materials Science, Paper & Wood
Senthil Rethinam, Serdar Batikan Kavukcu, Thiagarajan Hemalatha, A. Wilson Aruni, Aylin Sendemir, Cem Turkay
Summary: This study develops a nanofilter for removing toxic metal ions from effluent wastewater, which has high efficiency and economic feasibility.
Article
Environmental Sciences
Atasheh Soleimani-Gorgani, Hussein E. Al-Hazmi, Amin Esmaeili, Sajjad Habibzadeh
Summary: Sn-doped TiO2 nanoparticles were synthesized using a sol-gel method and screen-printing pastes were prepared to evaluate their photocatalytic activity. The highest photocatalytic activity was obtained at a calcination temperature of 450 degrees C.
ENVIRONMENTAL RESEARCH
(2023)
Article
Materials Science, Paper & Wood
Zhengxin Ma, Jie Liu, Guixian Shen, Xuejing Zheng, Ying Pei, Keyong Tang
Summary: This study reported the surface modification of microfibrillated cellulose with bio-inspired polydopamine, followed by in-situ growth and immobilization of silver nanoparticles, resulting in nanocomposites with long-term antibacterial activity. The nanocomposites exhibited excellent antibacterial performance against pathogenic bacteria and showed potential applications as coating and filling agents.
Article
Materials Science, Ceramics
Ya-Hsueh Lin, Wenjea J. Tseng
Summary: This study synthesized core-shell composite particles (FATN) with excellent adsorption and visible-light photocatalysis properties. The particles showed high adsorption and degradation efficiency against a dye solution at specific treatment temperatures, and could be easily recycled using an external magnet.
CERAMICS INTERNATIONAL
(2022)
Article
Environmental Sciences
Pavel Cesar Hernandez-Del Castillo, Jorge Oliva, Gabriela Robledo-Trujillo, Vicente Rodriguez-Gonzalez
Summary: This work investigates the structural, morphological, and photocatalytic properties of titanium dioxide (TiO2) and TiO2:NiIn (T-NiIn) coatings fabricated by spin coating. The results show that T-NiIn coatings exhibit higher effectiveness in the degradation of eosin-yellowish (EY) dye under both UV irradiation and solar light, and also show better stability after multiple cycles of reuse. The incorporation of nickel (Ni) and indium (In) in TiO2 coatings offers a feasible strategy to enhance the degradation of EY dye in drinking water.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Gauthaman Chandrabose, Avishek Dey, Shivani Singh Gaur, Sudhagar Pitchaimuthu, Hema Jagadeesan, N. St John Braithwaite, Vimalnath Selvaraj, Vasant Kumar, Satheesh Krishnamurthy
Summary: The study focuses on using MoS2/TiO2 nanocomposites to remove mixed dye pollutants through a two-stage adsorption/photocatalysis process. By using a high percentage of MoS2 in Stage-I and a low percentage in Stage-II, the process showed complete removal of methylene blue dye 5 times faster than conventional single-stage water treatment processes. Additionally, the method demonstrated excellent performance in removing mixed dye pollutants even at higher concentrations.
Article
Green & Sustainable Science & Technology
Lin Niu, Xiaoli Zhao, Zhi Tang, Hongzhou Lv, Fengchang Wu, Xiaolei Wang, Tianhui Zhao, Junyu Wang, Aiming Wu, John. P. Giesy
Summary: This study synthesized TiO2 NTs using TiO2 NPs as raw materials and analyzed their differences in adsorption and photocatalytic performance. TiO2 NTs showed better adsorption performance and photocatalytic activity, but a slight decrease in photocatalytic efficiency due to changes in crystal structure. Under optimal conditions, TiO2 NTs can rapidly degrade MB through synergistic adsorption and photocatalysis.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Sarath Chandra Pragada, Arun Kumar Thalla
Summary: This study developed a novel ternary composite catalyst for effective post-treatment of greywater. The coated film showed maximum scratch hardness and degradation efficiency at 5% Fe2O3/TiO2 composition. Moreover, the photocatalyst exhibited high cohesive bond strength and wearing resistance for treating triclosan in greywater.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Chemistry, Multidisciplinary
Ximena Jaramillo-Fierro, Ricardo Leon
Summary: The study investigated the ability of TiO2, La/TiO2, Ce/TiO2, and Eu/TiO2 nanoparticles to remove free cyanide from water. The results showed that La/TiO2 had the highest cyanide removal percentage (98%), followed by Ce/TiO2 (92%), Eu/TiO2 (90%), and TiO2 (88%). This suggests that La, Ce, and Eu dopants can improve the properties of TiO2 and enhance its ability to remove cyanide species from aqueous solutions.
Correction
Chemistry, Physical
H. K. Melvin Ng, G. K. Lim, C. P. Leo
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2020)
Article
Environmental Sciences
Jia Xin Yap, C. P. Leo, Nazlina Haiza Mohd Yasin, C. J. C. Derek
Summary: This study synthesized cellulose-based scaffolds with nanoparticles added to support the growth of microalgae, with the cellulose membrane scaffold with TiO2 showing the highest growth rate for Navicula incerta. The results demonstrate the potential of cellulose-based scaffolds with TiO2 for effective plant cell culture.
Article
Chemistry, Multidisciplinary
Mohamad Razif Mohd Ramli, Abdul Latif Ahmad, Choe Peng Leo
Summary: The hydrophobic coating of LDPE on the PTFE membrane creates a fine nanostructure, enhancing membrane hydrophobicity and permeability flux while resolving membrane wetting issues. Coated membranes with different LDPE concentrations exhibit higher water contact angles and liquid entry pressure values than uncoated membranes.
Article
Energy & Fuels
Hani Shazwani Mohd Suhaimi, Choe Peng Leo, Abdul Latif Ahmad
Summary: This study breaks through the limitations of the selectivity-permeability trade-off boundary in hydrogen separation by incorporating Pd nanoparticles into PBI membranes. The Pd nanoparticles blended into PBI membrane show improved ideal H-2/CO2 selectivity and surpass the upper bound Robeson plot at high temperatures.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Engineering, Chemical
Hoi-Fang Tan, Why-Ling Tan, B. S. Ooi, C. P. Leo
Summary: This study successfully enhanced phosphate recovery in MDC by modifying PVDF/MFC membrane, achieving a high water contact angle, relatively large pore size, and satisfactory porosity, ensuring stable permeate flux in MDC.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2021)
Article
Environmental Sciences
Jia Xin Yap, C. P. Leo, Nazlina Haiza Mohd Yasin, Pau Loke Show, C. J. C. Derek
Summary: By adjusting TiO2 loading and casting gap, the stability of regenerated cellulose culture scaffolds was enhanced in this study, leading to improved surface hydrophilicity and porosity of the membrane scaffolds. The optimal cellulose membrane scaffold with TiO2 loading of 0.5 wt% and thickness of 100 μm achieved the highest N. incerta growth rate and exhibited good membrane stability.
ENVIRONMENTAL RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Why-Ling Tan, Hoi-Fang Tan, A. L. Ahmad, C. P. Leo
Summary: Mineral carbonation in an aqueous solution is a practical strategy in CCUS, and wet carbonation can be used to produce calcium carbonate nanoparticles with vast applications. The use of porous membranes in MGA enhances the mass transfer of CO2 gas into liquid absorbent for the carbonation of calcium-rich solution.
JOURNAL OF CO2 UTILIZATION
(2021)
Review
Energy & Fuels
Norazuwana Shaari, Nor Naimah Rosyadah Ahmad, Raihana Bahru, Choe Peng Leo
Summary: Ionic liquids show promise as solvents for various applications due to their high conductivity and stability, with this review focusing on incorporating ILs into fuel cell systems. Improving polymer electrolyte membranes and electrocatalysts with IL additives is crucial for enhancing fuel cell performance.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Mohamad Razif Mohd Ramli, Abdul Latif Ahmad, Ebenezer Idowu Oluwasola, Choe Peng Leo
Summary: This study successfully enhanced the water permeation flux of the PTFE HF membrane by modifying its surface and achieved high rejection for NaCl. The modified membrane exhibited high stability and wetting resistance during the MD process, with lower energy consumption compared to traditional distillation, making it more economically feasible.
Review
Environmental Sciences
Geetha Maniam, Nur Ain Zakaria, Choe Peng Leo, Vasilena Vassilev, Karen Banahene Blay, Kourosh Behzadian, Phaik Eong Poh
Summary: This article reviews various products for rainwater harvesting and greywater treatment and reuse on laboratory, pre-commercialization scale, and commercialized products. A conceptual framework is proposed to facilitate decision making for suitable decentralized water reclamation solutions. Decentralized systems are crucial in reducing dependence on centralized water supply.
WILEY INTERDISCIPLINARY REVIEWS-WATER
(2022)
Article
Environmental Sciences
Jia Xin Yap, C. P. Leo, Derek Juinn Chieh Chan, Nazlina Haiza Mohd Yasin, Pau Loke Show
Summary: This study investigates the improvement of air-liquid interface cultivation of Navicula incerta using rearranged polyethersulfone (PES) and poly (vinylidene fluoride) (PVDF) hollow fiber membranes. The results show that PVDF hollow fiber membranes have a greater improvement in N. incerta cell growth rate compared to PES hollow fiber membranes. Furthermore, PVDF membranes significantly promote the growth of microalgae N. incerta through the air-liquid interface system, leading to potential applications in wastewater treatment.
Article
Engineering, Chemical
N. A. Zakaria, S. Q. Zaliman, C. P. Leo, A. L. Ahmad, B. S. Ooi, Phaik Eong Poh
Summary: In this study, the addition of PMMA, carbon black, and/or conductive ink improved the morphology and electrochemical properties of PVDF membranes, resulting in high permeate flux and stable salt rejection in membrane distillation.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Review
Engineering, Civil
Tracy Leh Xin Wong, Mohd Rosli Mohd Hasan, Leo Choe Peng
Summary: This article reviews the application of waste material recycling in improving the performance of asphalt pavements and emphasizes the improvement of material properties through chemical treatments. This research is important for cost-saving, efficient waste management, and achieving higher commercial feasibility.
JOURNAL OF TRAFFIC AND TRANSPORTATION ENGINEERING-ENGLISH EDITION
(2022)
Article
Chemistry, Applied
Jialin Fu, Jia Xin Yap, C. P. Leo, Chun Kiat Chang, Pau-Loke Show
Summary: This review compares the loading and release of different nutrients from polysaccharide hydrogels for fertilizing purposes. Various methods were studied to control the release of urea, nitrogen sources, phosphate, and potassium from the hydrogels. However, most of the polysaccharide hydrogels did not meet the nutrient release standards. Additionally, utilizing polysaccharide-rich waste and nutrients in wastewater can further reduce the cost.
SEPARATION AND PURIFICATION REVIEWS
(2023)
Article
Energy & Fuels
Iswary Letchumanan, Choe Peng Leo, Swee-Yong Pung, Chee Meng Koe, Norazuwana Shaari, Yusra Nadzirah Yusoff
Summary: A hybrid tin oxide-cellulose nanocomposite was produced and coated on microfibrillated cellulose (MFC) thin films to form a supercapacitor. The hybrid tin oxide-cellulose thin films were structurally analyzed using various techniques. The cellulose thin film with the highest loading of the hybrid nanocomposite exhibited high specific capacitance and excellent cyclic stability, indicating its potential in energy storage.
Article
Chemistry, Applied
Heena, Komal Sharma, Kamlesh Kumar, Bhargab Das, Raj Kumar
Summary: In this study, holographic films were prepared using an automatic film applicator, and their performance was compared with films prepared by other methods. The results showed that holographic films prepared with the automatic film applicator had higher diffraction efficiency and more uniform thickness, making them suitable for holographic applications.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Athira S. Vijayan, Antony Joseph, Abey Joseph, T. S. Abhijith, Baiju G. Nair, V. Sajith
Summary: Novel polydopamine functionalized ceria-zirconia nanoparticles filled water-borne epoxy nanocomposite coatings were developed to prevent microbial-induced corrosion of mild steel. The coatings exhibited exceptional anti-biofouling and anti-biocorrosion properties due to the synergistic effect of PDA functionalization and zirconium incorporation, providing significant enhancement in charge transfer resistance and coating resistance.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yudan Yi, Qingyong Sun, Qijun Li, Bi Shi, Ya-nan Wang
Summary: Producing metal-free leather is an effective approach to eliminate Cr pollution and achieve sustainable development of the leather industry. However, current metal-free tanning technologies have limitations in terms of water sorption and charge properties. By using cationic amphiphilic acrylic copolymers (PSD) as retanning agents, the properties of metal-free leather can be significantly improved, including enhanced hydrophobicity, better dye absorption, and excellent filling effect.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yunqing Xia, Lifen Tong, Xiaofang Feng, Hubing Xiang, Yi He, Xiaobo Liu
Summary: By incorporating functionalized nanofillers, such as polydopamine-modified graphitic carbon nitride and cerium oxide, into epoxy coatings, their corrosion resistance can be improved and their protective period can be extended.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Weineng Lu, Guanhao Ma, Jinqing Qu
Summary: Four novel bis-chalcone-based carbazole derivative photoinitiators were designed and synthesized in this study. Their maximum absorption wavelengths were determined and found to exhibit high molar extinction coefficients. Furthermore, a three-component photoinitiation system including bis-chalcone/iodonium/amine was successfully used to trigger the rapid and efficient photopolymerization of acrylates. The photoinitiators also showed good photo bleaching and biocompatibility, making them suitable for applications such as 3D printing and deep coating curing.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Xingnan Zhou, Shixian Zhang, Yiheng Song, Hongmei Qin, Chuanxi Xiong, Shan Wang, Quanling Yang, Delong Xie, Rong Fan, Dan Chen
Summary: In this study, eco-friendly 3-amino-1,2,4-triazole (ATA) molecules were used to modify graphene oxide (GO) nanosheets for improving the anti-corrosion performance of water-borne epoxy (WEP) coating. The results show that ATA modification enhances the dispersion of GO in the polymer coating and significantly improves the barrier effect.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Hao Fu, Wei Bing, Xushibojie Liu
Summary: In this study, temperature-sensitive coatings with bacteria-killing and bacteria-releasing functions were prepared on silicone rubber surfaces by UV polymerization and UV photocatalysis. The modified surface exhibited strong and persistent bactericidal effect, inhibiting the formation of bacterial biofilm. Moreover, the smart surface can effectively release bacteria and resist bacterial adhesion through temperature changes. The modified silicone rubber surface showed good biocompatibility without cytotoxicity.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Lee Eyann, Zulkifli Mohamad Ariff, Mohamad Danial Shafiq, Raa Khimi Shuib, Muhamad Sharan Musa
Summary: By investigating the effect of MAA addition on the properties of the WEA core-shell emulsion, film and coating, it was found that MAA can significantly impact the structure and performance of the coatings, and has great potential for applications.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Jinkyu Choi, Kyung Hoon Min, Byeong Seok Kim, Sung-Hyeon Baeck, Sang Eun Shim, Yingjie Qian
Summary: A novel phosphorus-based flame retardant was designed by incorporating aryl groups, which effectively improved the flame retardancy and mechanical properties of polyurethanes.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Saowaluk Taechutrakul, Thananchai Piroonpan, Beata Paulina Rurarz, Slawomir Kadlubowski, Piotr Ulanski, Wanvimol Pasanphan
Summary: This study proposes the use of nanogels to disperse and stabilize water-insoluble organic pigment particles in water-based inks. The nanogels were prepared using electron beam-induced chemical reactions and showed good dispersion and stabilization properties. The use of nanogels in ink formulation improved the ink's hiding power, lightfastness, and resistance properties.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Shan Wan, Huikai Chen, Bokai Liao, Xingpeng Guo
Summary: In this study, 2-amino-5 mercapto-1,3,4-thiadiazole (ATT) was used as an intercalating agent to prepare ATT/BNNS nanofillers via a liquid-phase assisted ultrasound method. TEM results showed that ATT successfully exfoliated BNNS and reduced agglomeration. The WEP ATT/BNNS coating exhibited the best protective performance under saline immersion due to the combined action of ATT inhibitor and BNNS physical barrier.
PROGRESS IN ORGANIC COATINGS
(2024)
Review
Chemistry, Applied
Lijie Yin, Bo Zhang, Ming Tian, Nanying Ning, Wencai Wang
Summary: This paper reviews the recent progress in the synthesis of bio-based waterborne polyurethanes (BWPU) and focuses on its applications in coatings, adhesives, and antimicrobials. BWPU has attracted much attention due to its good physical and chemical properties, no VOCs emissions, exploitation of renewable substances, and structural design-ability.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yuyang Zhou, Yang Chen, Xinming Cao, Haodong Fu, Yun Li, Yonghui Zhang, Jun Ma, Xin Liu
Summary: This study proposes a strategy to fabricate a high-strength double-layer superhydrophobic actuator, which consists of a metal/glass-based superhydrophobic substrate and a polymer superhydrophobic coating. The coating has high adhesive strength, self-cleaning, anti-ultraviolet irradiation, and anti-stripping properties, along with photothermal and magnetic response capabilities, enabling its application in various fields.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Fengbiao Chen, Fei Gao, Xinru Guo, Yu Chen, Xuelang Gao, Liang Shen
Summary: In this study, various covalent adaptable networks (CANs) were synthesized using multifunctional amines and compared with CANs prepared from primary and secondary amines. The results showed that the performance of CANs is closely related to the crosslinking density, and increasing the content of secondary amines improves the performance but weakens the dynamics.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Qian Zhang, Mengyi Shen, Xingcai Liu, Hao Fu, Wenbo Yang, Jinyuan Zhao, Jian Wang, Yaping Du, Chunjie Ma
Summary: Rare earth-containing corrosion inhibitors were successfully synthesized and added into epoxy coatings for the anti-corrosion of steel materials. The results showed that the coatings with rare earth elements had better anti-corrosion performance, and this difference in performance could be explained by the inherent properties of rare earth elements.
PROGRESS IN ORGANIC COATINGS
(2024)
