Article
Engineering, Biomedical
A. Ali, S. Chowdhury, A. Janorkar, M. Marquart, J. A. Griggs, J. D. Bumgardner, M. D. Roach
Summary: This study compared the properties of PANI-doped oxide specimens produced by different methods and found that the novel single-step direct anodization technique significantly improved photocatalytic activity and reduced bacterial attachment. No cytotoxicity was observed in the cell experiments.
BIOMEDICAL MATERIALS
(2023)
Article
Engineering, Biomedical
Aya Ali, Sheetal Chowdhury, Mary A. A. Carr, Amol V. V. Janorkar, Mary Marquart, Jason A. A. Griggs, Joel D. D. Bumgardner, Michael D. D. Roach
Summary: Titanium anodization can produce crystalline oxides that exhibit photocatalytic reactions and reduce bacteria attachment. The addition of PANI to these surfaces can increase photocatalytic activity. This study aimed to determine the optimal concentration of aniline electrolyte to maximize PCA and reduce bacterial attachment.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Nan Gao, Chen Wang, Yanjie Xue, Haitao Ma, Yunpeng Wang, Jinwei Cao
Summary: In this study, a simple continuous electrochemical synthesis strategy was proposed to build 3D hierarchical hybrid conductive networks. The strategy involved sequential template electrodeposition-anodization and in-situ aniline electro-polymerization. The resulting hierarchical metal oxide framework demonstrated enhanced electron transport and structural stability, solving the dead surface problem in energy storage. This multifaceted approach opens up new possibilities for designing efficient binder-free hybrid electrode materials.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Nanoscience & Nanotechnology
Sixing Yin, Wentao Lu, Xin Wu, Qunyi Luo, Erqiang Wang, Cun-Yue Guo
Summary: Fabricating flexible high-performance PANI/SWCNT TE composites by dynamic 3-phase interfacial electropolymerization of aniline and physical mixing with SWCNTs, the addition of DMSO and varying loadings of SWCNTs show significant enhancements in TE performance. The composites exhibit the highest power factor of 236.4 +/- 5.9 μWm(-1)K-2 at room temperature, demonstrating the effectiveness of introducing DMSO into the electrolyte for fabricating high-performance TE composites.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Polymer Science
Chunlian Liu, Peipei Huang, Wei Wang, Miao Tan, Fangbao Fu, Yunhui Feng
Summary: In this study, composite nanomaterials of TiO2 nanotube arrays (TiO2 NTAs) and polyaniline (PANI) were successfully prepared on titanium sheets using an anodic oxidation electrochemical method. The TiO2 NTA/PANI composite materials exhibited excellent UV photosensitivity and responsiveness, as well as good stability and reproducibility. The p-n heterostructure formed inside the composites hindered the recombination of photogenerated electron-hole pairs and improved their utilization of UV light. This work provides a theoretical basis for the application of metal oxides in UV photodetectors, which is important for the development of UV photodetectors.
Article
Optics
Maxim V. V. Pyatnov, Rashid G. G. Bikbaev, Ivan V. V. Timofeev, Ilya I. I. Ryzhkov, Stepan Ya. Vetrov, Vasily F. F. Shabanov
Summary: In this work, the optical properties of a bamboo-type TiO2 nanotube photonic crystal with a metallic coating are analyzed using the finite-difference time-domain method, and the occurrence of Tamm plasmons in the absorption spectrum is predicted. The integral absorption of the gold-, titanium-, and titanium nitride-coated photonic crystals in the wavelength range of 450-600 nm is calculated, and it is found that the titanium nitride-coated structure exhibits the maximum integral absorption.
Article
Materials Science, Coatings & Films
Ika Maria Ulfah, Diah Ayu Fitriani, Siti Amalina Azahra, Aghni Ulma Saudi, Muhammad Kozin, Razie Hanafi, Prabowo Puranto, Bambang Sugeng, Yudi Nugraha Thaha, Aga Ridhova, Muhammad Prisla Kamil
Summary: Titanium dioxide nanotubes (TNTs) grown on the surface of titanium implants play a significant role in preventing tissue infection and implant failure. This study investigates the role of different counter electrodes in the formation of TNTs with varying shapes and surface properties. The use of platinum and graphite cathodes results in circular TNTs, while stainless steel cathode leads to hexagonal-shaped tubes with particle debris on the surface. The surface microstructure of TNTs affects their roughness, hydrophilicity, and ability to facilitate the growth of bone-forming apatite during osseointegration.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Alberto Z. Fatichi, Mariana G. de Mello, Karina D. Pereira, Luisa G. M. Antonio, Augusto D. Luchessi, Rubens Caram, Alessandra Cremasco
Summary: The electrochemical, structural, and biological properties of self-organized amorphous and anatase/rutile titanium dioxide (TiO2) nanotubes deposited on Ti-35Nb-4Zr alloy through anodization-induced surface modification were investigated. The study found that anatase TiO2 exhibited higher surface corrosion resistance and cell viability compared to amorphous TiO2, indicating the importance of TiO2 nanotube crystallization in the material's electrochemical behavior and biocompatibility.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Perumal Agilan, Kannan Saranya, Nallaiyan Rajendran
Summary: In this study, polydopamine was coated on titania nanotubes (TNTA) to improve corrosion rate and enhance apatite formation, cell adhesion, and proliferation. The surface modification with polydopamine on TNTA shows potential as a promising implant material in bone tissue engineering.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Engineering, Multidisciplinary
Leonardo Raphael Zuardi, Cleide Lucia Araujo Silva, Eduardo Magalhaes Rego, Giovana Vacilotto Carneiro, Silvia Spriano, Antonio Nanci, Paulo Tambasco de Oliveira
Summary: In vitro study showed that titanium nanotopography modulates the osteogenic response and enhances the expression of alkaline phosphatase mRNA, activity, and osteopontin (OPN) levels. The presence of a blood clot tends to inhibit osteoblastic differentiation, but the coating of recombinant mouse (rm) BMP-7 on a nanostructured titanium surface promotes differentiation.
Article
Materials Science, Coatings & Films
Junling Qin, Zhiguang Cao, Hui Li, Zixue Su
Summary: TiO2 nanotubes with a diameter down to around 6 nm were successfully fabricated in ammonium fluoride-containing ethylene glycol electrolyte through a one-step anodic oxidation method. By systematically studying the influences of various factors, the growth mechanism of TiO2 nanotubes with ultra-small pore diameter and cell size was revealed.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Muhammad Bilal Hanif, Guru Karthikeyan Thirunavukkarasu, Viktoriia Liapun, Hryhorii Makarov, Maros Gregor, Tomas Roch, Tomas Plecenik, Karol Hensel, Marcel Sihor, Olivier Monfort, Martin Motola
Summary: This study presents an environmentally friendly synthesis of TiO2 nanotube (TNT) layers and demonstrates their photocatalytic performance and HO radical production rate. The best preparation condition was using AgNO3 as the electrolyte, which resulted in TNT layers with suitable morphological features and crystal structure.
Article
Chemistry, Multidisciplinary
Esakkimuthu Shanmugasundaram, Chandramohan Govindasamy, Muhammad Ibrar Khan, Vigneshkumar Ganesan, Vimalasruthi Narayanan, Kannan Vellaisamy, Rajaram Rajamohan, Stalin Thambusamy
Summary: Carbon nanofibers (CNFs) are used in the construction of energy devices, especially organic solar cells. They are created through the electrospinning process using polyacrylonitrile (PAN) and then carbonized. The CNFs are coated on stainless steel plates and their electrical conductivity is evaluated using cyclic voltammetry. Among them, the CNF-PANI-Cu electrode shows the highest conductivity of 3.0 mA. Furthermore, PANI, CNF-PANI, and CNF-PANI-Cu are characterized for their optical and electrical properties for organic solar cell applications.
Article
Chemistry, Physical
Peng Li, Shuxin Dai, Dan Dai, Zhiming Zou, Renda Wang, Ping Zhu, Kun Liang, Fangfang Ge, Feng Huang
Summary: Diverse microstructures of Ti films were created via magnetron sputtering under controllable parameters, followed by anodization in an ethylene glycol-based electrolyte. The relationship between the micro-structures of Ti films and the resulting TiO2 layers was analyzed, with film density identified as the key microstructure affecting the formation of TiO2 nanotube arrays (TNTs). The electron aggregation theory explained why denser Ti films facilitate TNTs formation, and confirmatory experiments were performed to validate this theory.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Jiman Nelson, Sakshi Jain, Pallabi Pal, Haden A. Johnson, Kadie P. Nobles, Amol V. Janorkar, Randall S. Williamson, Michael D. Roach
Summary: This study investigated a two-step combination of mixed-acid electrolyte anodization and subsequent Ca(NO3)(2) hydrothermal treatment to optimize titanium specimens with favorable Ca/P surface ratios. The results showed that specimens anodized to 108 V and soaked in Ca(NO3)(2) solution exhibited favorable surface Ca/P ratios and increased apatite formation and mineralization. This two-step combination shows great promise for future biomaterials applications.
Article
Engineering, Environmental
Xinping Zhang, Yuxin Guo, Xiaoyang Liu, Shun-Yu Wu, Ya-Xuan Zhu, Shao-Zhe Wang, Qiu-Yi Duan, Ke-Fei Xu, Zi-Heng Li, Xiao-Yu Zhu, Guang-Yu Pan, Fu-Gen Wu
Summary: This study develops a nanotrigger HCFT for simultaneous photodynamic therapy and light-triggered ferroptosis therapy. The nanotrigger can relieve tumor hypoxia, induce enhanced photodynamic reaction, and facilitate the continuation of Fenton reaction, ultimately leading to lethal ferroptosis in tumor cells.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Olumide Bolarinwa Ayodele, Toyin Daniel Shittu, Olayinka S. Togunwa, Dan Yu, Zhen-Yu Tian
Summary: This study focused on the semihydrogenation of acetylene in an ethylene-rich stream using two alloyed Pt catalysts PtCu and PtCo. The PtCu catalyst showed higher activity and ethylene yield compared to PtCo due to its higher unoccupied Pt d-orbital density. This indicates that alloying Pt with Cu is more promising for industrial relevant SHA catalyst.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Guowei Chen, Wen-Cheng Chen, Yaozu Su, Ruicheng Wang, Jia-Ming Jin, Hui Liang, Bingxue Tan, Dehua Hu, Shaomin Ji, Hao-Li Zhang, Yanping Huo, Yuguang Ma
Summary: This study proposes an intramolecular dual-locking design for organic luminescent materials, achieving high luminescence efficiency and performance for deep-blue organic light-emitting diodes. The material also exhibits unique mechanochromic luminescence behavior and strong fatigue resistance.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Joren van Stee, Gregory Hermans, Jinu Joseph John, Koen Binnemans, Tom Van Gerven
Summary: This work presents a continuous solvent extraction method for the separation of cobalt and nickel in a millifluidic system using Cyphos IL 101 (C101) as the extractant. The optimal conditions for extraction performance and solvent properties were determined by investigating the effects of channel length, flow rate, and temperature. The performance of a developed manifold structure was compared to a single-channel system, and excellent separation results were achieved. The continuous separation process using the manifold structure resulted in high purity cobalt and nickel products.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Yan Xu, Jingai Jiang, Xinyi Lv, Hui Li, Dongliang Yang, Wenjun Wang, Yanling Hu, Longcai Liu, Xiaochen Dong, Yu Cai
Summary: A programmed gas release nanoparticle was developed to address the challenges in treating diabetic infected wounds. It effectively removes drug-resistant pathogens and remodels the wound microenvironment using NO and H2S. The nanoparticle can eliminate bacteria and promote wound healing through antibacterial and anti-inflammatory effects.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Tong Xia, Zhilin Xi, Lianquan Suo, Chen Wang
Summary: This study investigated a highly efficient coal dust suppressant with low initial viscosity and high adhesion-solidification properties. The results demonstrated that the dust suppressant formed a network of multiple hydrogen bonding cross-linking and achieved effective adhesion and solidification of coal dust through various chemical reactions.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jinzhi Cai, Zhenshan Li
Summary: A density functional theory-based rate equation was developed to predict the gas-solid reaction kinetics of CaO carbonation with CO2 in calcium looping. The negative activation energy of CaO carbonation close to equilibrium was accurately predicted through experimental validation.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jianxiong Chen, Fuhao Ren, Ningning Yin, Jie Mao
Summary: This study presents an economically efficient and easily implementable surface modification approach to enhance the high-temperature electrical insulation and energy storage performance of polymer dielectrics. The self-assembly of high-insulation-performance boron nitride nanosheets (BNNS) on the film surface through electrostatic interactions effectively impedes charge injection from electrodes while promoting charge dissipation and heat transfer.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Zijian Li, Zhaohui Yang, Shao Wang, Hongxia Luo, Zhimin Xue, Zhenghui Liu, Tiancheng Mu
Summary: This study reports a strategy for upgrading polyester plastics into value-added chemicals using electrocatalytic methods. By inducing the targeted transfer of *OH species, polyethylene terephthalate was successfully upgraded into potassium diformate with high purity. This work not only develops an excellent electrocatalyst, but also provides guidance for the design of medium entropy metal oxides.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Navneet Singh Shekhawat, Surendra Kumar Patra, Ashok Kumar Patra, Bamaprasad Bag
Summary: This study primarily focuses on developing a sulphur dyeing process at room temperature using bacterial Lysate, which is environmentally friendly, energy and cost effective, and sustainable. The process shows promising improvements in dye uptake and fastness properties.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Dengjia Shen, Hongyang Ma, Madani Khan, Benjamin S. Hsiao
Summary: This study developed cationic PVC nanofibrous membranes with high filtration and adsorption capability for the removal of bacteria and hexavalent chromium ions from wastewater. The membranes demonstrated remarkable performance in terms of filtration efficiency and maximum adsorption capacity. Additionally, modified nanofibrous membranes were produced using recycled materials and showed excellent retention rates in dynamic adsorption processes.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Xiaoyan Wang, Zhikun Wang, Ben Jia, Chunling Li, Shuangqing Sun, Songqing Hu
Summary: Inspired by photosystem II, self-supported Fe-doped NiCoP nanowire arrays modified with carboxylate were constructed to boost industrial-level overall water splitting by employing the concerted proton-coupled electron transfer mechanism. The introduction of Fe and carboxyl ligand led to improved catalytic activity for HER and OER, and NCFCP@NF exhibited long-term durability for overall water splitting.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Pengyao Yu, Ge Yang, Yongming Chai, Lubomira Tosheva, Chunzheng Wang, Heqing Jiang, Chenguang Liu, Hailing Guo
Summary: Thin LTA zeolite membranes were prepared through secondary growth of nano LTA seeds in a highly reactive gel, resulting in membranes with superior permeability and selectivity in gas separation applications.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Baiqin Zhou, Huiping Li, Ziyu Wang, Hui Huang, Yujun Wang, Ruichun Yang, Ranran Huo, Xiaoyan Xu, Ting Zhou, Xiaochen Dong
Summary: The use of machine learning to predict the performance of specific adsorbents in phosphate adsorption shows great promise in saving time and revealing underlying mechanisms. However, the small size of the dataset and insufficient detailed information limits the model training process and the accuracy of results. To address this, the study employs a fuzzing strategy that replaces detailed numeric information with descriptive text messages on the physiochemical properties of adsorbents. This strategy allows the recovery of discarded samples with limited information, leading to accurate prediction of adsorption amount, capacity, and kinetics. The study also finds that phosphate uptake by adsorbents is generally through physisorption, with some involvement of chemisorption. The framework established in this study provides a practical approach for quickly predicting phosphate adsorption performance in urgent scenarios, using easily accessible information.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Paula Alejandra Lamprea Pineda, Joren Bruneel, Kristof Demeestere, Lisa Deraedt, Tex Goetschalckx, Herman Van Langenhove, Christophe Walgraeve
Summary: This study evaluates the use of four esterified fatty acids and three vegetable oils as absorption liquids for hydrophobic VOCs. The experimental results show that isopropyl myristate is the most efficient liquid for absorbing the target VOCs.
CHEMICAL ENGINEERING JOURNAL
(2024)