Article
Nanoscience & Nanotechnology
Liqun Wang, Wenping Si, Yuhang Ye, Sihui Wang, Feng Hou, Xinggang Hou, Hongkun Cai, Shi Xue Dou, Ji Liang
Summary: The TiO2 nanotube array implanted with Cu ions and decorated with polymeric carbon nitride shows significantly improved performance in photoelectrochemical water splitting, thanks to the synergistic effect of Cu-ion implantation and PCN decoration.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Shi -Wei Lin, Mei-Hong Tong, Yan-Xin Chen, Rui Chen, Hai-Peng Zhao, Xia Jiang, Kai Yang, Can-Zhong Lu
Summary: Composite of rare earth oxides with TiO2 nanotube arrays effectively modifies the PEC behavior of TiO2. A CeO2/TiO2 heterojunction was prepared by loading CeO2 nanoparticles on anodized TiO2 nanotube arrays, demonstrating high photocurrent density and hydrogen evolution rate.
ACS APPLIED ENERGY MATERIALS
(2023)
Review
Chemistry, Physical
Joo-Won Lee, Ki-Hyun Cho, Joon-Soo Yoon, Young-Min Kim, Yun-Mo Sung
Summary: Hydrogen energy is a promising alternative to fossil fuels, and solar-driven photoelectrochemical water splitting is considered a representative technique for H-2 production due to its eco-friendly process and abundance of resources. One-dimensional nanostructures are highlighted for their potential as photocatalyst materials, offering enhanced PEC performance compared to thin-film photoelectrodes. The review of recent research on 1D nanostructured photoelectrodes provides insight into synthetic approaches and strategies to improve performance, guiding the development of advanced photoelectrodes for H-2 generation.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Materials Science, Multidisciplinary
Zhao Liang, Ding Chen, Shang Xu, Zhi Fang, Lin Wang, Weiyou Yang, Huilin Hou
Summary: By synergistically employing N-doping and surface modification, this study successfully enhanced the PEC efficiency of TiO2 nanorod arrays, improving their light absorption capability and surface charge separation efficiency significantly. The PEC efficiencies were increased by 7 and 3 times compared to untreated TiO2 nanorod arrays and N-doping TiO2 counterparts, respectively.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Physical
Jongseong Park, Tae Hyung Lee, Changyeon Kim, Sol A. Lee, Min-Ju Choi, Hwiho Kim, Jin Wook Yang, Jongwoo Lim, Ho Won Jang
Summary: The study successfully enhanced the photocurrent density and incident photon-to-current efficiency by synthesizing a nanostructured In2S3/TiO2 photoanode, further investigating carrier lifetime and band position to clarify the generation of type-II heterojunction between In2S3 nanoparticles and TiO2 nanorod arrays. The methodologies and theoretical evidence proposed in this study show significant improvements in TiO2 based photoanodes, with an all-solution-based process providing a facile and scalable method for environmentally friendly production of highly enhanced photoelectrodes.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Review
Chemistry, Multidisciplinary
Bin Liu, Shujie Wang, Gong Zhang, Zichen Gong, Bo Wu, Tuo Wang, Jinlong Gong
Summary: Photoelectrochemical water splitting is a crucial method for producing hydrogen using solar energy. The development of tandem cells for unbiased water splitting has gained significant interest. This review provides an overview of the current status, challenges, and prospects in this field.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Ming Meng, Yamin Feng, Chunyang Li, Zhixing Gan, Honglei Yuan, Honghui Zhang
Summary: Black 3D-TiO2 nanotube arrays were successfully fabricated on titanium meshes using an electrochemical reduction method. The optimized arrays showed a maximal photocurrent density of 1.6 mA/cm(2) and a Faradic efficiency of 100%, four times higher than that of pristine 3D-TiO2 NTAs. The improved water splitting activity is attributed to the introduction of oxygen vacancies, which shrink the bandgap and enhance visible light utilization.
Article
Chemistry, Physical
Mei-Hong Tong, Tian-Ming Wang, Shi-Wei Lin, Rui Chen, Xia Jiang, Yan-Xin Chen, Can-Zhong Lu
Summary: TiO2 is widely used as a photocatalyst for water splitting due to its high activity, low cost, abundance, safety, and stability. However, its further utilization is limited by its wide band gap and rapid recombination speed. In this study, ultra-thin carbon-doped TiO2 nanotube arrays were fabricated, which exhibited high photoelectrochemical activity and significantly narrowed band gaps and decreased charge resistance. The results suggest that ultra-thin carbon doping in TiO2 nanotube arrays can optimize photocatalysts for PEC water splitting.
APPLIED SURFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Peng Tang, Xiaopei Li, Chunling Xie, Xiufeng Xiao
Summary: This study constructed highly ordered titanium dioxide nanotube arrays (TNTs) by changing the tissue structure of the titanium substrate, and investigated the influence of the titanium substrate structure on the growth morphology of nanotubes. The results showed that after rolling, there were a large number of dislocations and microscopic internal stresses in the grain structure of the titanium substrate, which improved the corrosion resistance of the materials. The changes in the microstructure of these materials made the nanotube arrays have highly ordered structure and better photoelectrochemical properties, providing a new idea for improving their applications in photoelectrochemistry.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Jinsong Li, Jing Ao, Chongxia Zhong, Tan Yin
Summary: Researchers have developed a TiO2-CNT supercapacitor with high energy density and specific capacitance. The device shows excellent cyclic stability and low leakage current, making it suitable for power supply of portable electronics in the future.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Analytical
Bingqing Zhang, Lanlan Huang, Xiaolong Zhang, Yuping Du, Haoyue Sun, Chunzi Jin, Ting Zuo, Lihua He, Wenjun Fa
Summary: This paper presents a method for fabricating a PEC H2O2 sensor using a Ta3N5 photoanode, and the results show that the sensor exhibits high sensitivity and a lower onset potential.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Ceramics
HyukSu Han, Sung- Moon, Seunggun Choi, Enkhbayar Enkhtuvshin, So Jung Kim, Sun Young Jung, Nguyen Thi Thu Thao, Taeseup Song
Summary: In this study, plasma treatment was utilized for surface engineering of TiO2 nanotubes, creating porous and partially amorphized surface and effectively modulating the electronic configuration for improved photocatalytic activity. The enhanced charge transport and light-absorption in TiO2 nanotubes after ion plasma treatment, in combination with nanoporous structure, leads to significantly higher photocatalytic efficiency, potentially offering a pathway for designing next-generation high-performance photocatalysts.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Siti Nurul Falaein Moridon, Khuzaimah Arifin, Mohamad Azuwa Mohamed, Lorna Jeffery Minggu, Rozan Mohamad Yunus, Mohammad B. Kassim
Summary: The presence of Mo2C as a cocatalyst on TiO2 nanotubes enhances their photoelectrochemical performance, leading to improved water-splitting capabilities. This study introduces a potentially effective method for developing efficient photoelectrodes based on TiO2.
Article
Nanoscience & Nanotechnology
Mi Gyoung Lee, Jin Wook Yang, Hoonkee Park, Cheon Woo Moon, Dinsefa M. Andoshe, Jongseong Park, Chang-Ki Moon, Tae Hyung Lee, Kyoung Soon Choi, Woo Seok Cheon, Jang-Joo Kim, Ho Won Jang
Summary: In this study, a crystal facet engineering approach was used to control the band structures of titanium dioxide nanostructures as hole blocking layers for bismuth vanadate. The results showed that the BiVO4/TiO2 heterostructure with nanoflowers exhibited significantly higher photocurrent density compared to nanorods. The enhancement was attributed to reduced charge recombination due to the formation of type II band alignment between BiVO4 nanodots and TiO2 nanoflowers. This work not only provides new insights into the interplay between crystal facets and band structures but also advances the design of highly efficient photoelectrodes.
NANO-MICRO LETTERS
(2022)
Article
Chemistry, Analytical
Ayman Ali Saeed, Mohammed Nooredeen Abbas, Waheed Fathi El-Hawary, Yousry Moustafa Issa, Baljit Singh
Summary: A hydrogen peroxide sensor based on core-shell gold@titanium dioxide nanoparticles and multi-walled carbon nanotubes modified electrode was developed. The sensor exhibited excellent stability and sensitivity, and was successfully tested in human serum and saliva samples.
Review
Chemistry, Analytical
Siti nor Hidayah Arifin, Radin Mohamed, Adel Al-Gheethi, Chin Wei Lai, G. Yashni
Summary: This article reviews the potential of using TiO2 nanotubes for photocatalytic degradation of TCC and TCS in greywater. The results show that TiO2 nanotubes have high efficiency in degrading TCC and TCS, with removal rates ranging from 33% to 99% for TCC and 1.73% to 90% for TCS. Moreover, photocatalytic degradation of TCC and TCS has led to the production of nonhazardous photoproducts.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Environmental Sciences
Siti Nor Hidayah Arifin, Radin Maya Saphira Radin Mohamed, Adel Al-Gheethi, Chin Wei Lai, Yashni Gopalakrishnan, Nur Diyana Hairuddin, Dai-Viet Vo
Summary: This study investigated the degradation of triclocarban (TCC) in aqueous solution using a modified zeolite/TiO2 composite synthesized through electrochemical anodization. It was found that the reaction rate was significantly high at pH 11, with a loading size of 0.75 cm(2) and an initial TCC concentration of 5 ppm. Furthermore, high-performance liquid chromatography analysis revealed the presence of eleven intermediate products during the photocatalytic degradation of TCC.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
G. Ambarasan Govindasamy, Rabiatul Basria S. M. N. Mydin, Nor Hazliana Harun, Wan Nuramiera Faznie Wan Eddis Effendy, Srimala Sreekantan
Summary: This study investigated the physicochemical, bactericidal, and cytocompatibility properties of copper oxide (CuO) nanoparticles synthesized from giant milkweed medicinal plant. The results showed that CuO-500C nanoparticles exhibited improved bactericidal properties and cytocompatibility, making them suitable for wound dressing material application.
Review
Multidisciplinary Sciences
Farrokhfar Valizadeh Harzand, Seyyed Navid Mousavi Nejad, Aziz Babapoor, Seyyed Mojtaba Mousavi, Seyyed Alireza Hashemi, Ahmad Gholami, Wei-Hung Chiang, Maria Giovanna Buonomenna, Chin Wei Lai
Summary: Metal-organic frameworks (MOFs) are porous crystalline materials composed of metal and organic material, with properties such as tunability, large surface area, and high porosity. They have various applications in environmental protection, biosensors, regenerative medicine, medical engineering, cell therapy, catalysts, and drug delivery. MOF-based asymmetric membranes improve stability and specificity, while conjugated membranes increase the area of functional groups, making them attractive for drug and biosensor fabrication. MOF-assisted membranes provide a platform with different properties and characteristics for biomedical applications. The latest version of MOF materials/membranes has potential applications in medical engineering, cell therapy, drug delivery, and regenerative medicine.
Review
Chemistry, Physical
Zahra Pouramini, Seyyed Mojtaba Mousavi, Aziz Babapoor, Seyyed Alireza Hashemi, Chin Wei Lai, Yousef Mazaheri, Wei-Hung Chiang
Summary: The use of antibiotics and dyes has caused severe water pollution and health risks, necessitating their elimination from water sources. Adsorption and photodegradation are economical, simple, and reusable methods for removing harmful water contaminants. Metal-organic frameworks (MOFs), such as ZIF-8 and ZIF-67, are effective adsorbents and photocatalysts due to their high porosity, adjustability, and crystal structure. This article reviews the design and synthesis methods of ZIF-8 and ZIF-67 composites and discusses their role as adsorbents and photocatalysts in wastewater pollution removal, aiming to provide insights for the development of highly effective ZIF-8/67-based materials.
Article
Engineering, Environmental
G. Ambarasan Govindasamy, Rabiatul Basria S. M. N. Mydin, Nasrin K. Ramtan Gadaime, Srimala Sreekantan
Summary: Transformation of plain Chitosan to antibacterial polymer nanocomposite with embedment of Quercetin-ZnO/CuO through green synthesis approach showed promising outcomes in wound healing management. The ZnO/CuO-Cs-1wt.% exhibited high cell viability, biodegradability, enhanced cell migration and wound closure. The in vivo excisional open wound studies in rats further supported the effectiveness of ZnO/CuO-Cs-1wt.% in wound recovery.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Chemistry, Analytical
Masoomeh Yari Kalashgrani, Aziz Babapoor, Seyyed Mojtaba Mousavi, Solmaz Feizpoor, Seyyed Alireza Hashemi, Mojtaba Binazadeh, Wei-Hung Chiang, Chin Wei Lai
Summary: The performance of IRMOF-3 for removing naphthalene from aqueous media is evaluated for the first time in this study. IRMOF-3 shows high adsorption capacity for naphthalene removal, with an optimum removal efficiency of 80.96% at specific conditions. The results demonstrate that IRMOF-3 is an effective adsorbent for naphthalene removal from wastewater.
Article
Engineering, Chemical
Amna Jwad Kadem, Yin Xin Teo, Swee-Yong Pung, Srimala Sreekantan, Sivakumar Ramakrishnan
Summary: This study investigates the yellowing discoloration of LEDs caused by TiO2 particle degradation in encapsulants. Mn particles were coupled with TiO2 particles using photo-reduction to mitigate the negative effects of TiO2 particles on LED lifespan and chromaticity change. The optimal parameters for Mn-TiO2 coupling were determined, and the resulting particles showed superior dispersibility and minimal agglomeration. The Mn-TiO2 particles exhibited the lowest photodegradation rate and highest photodegradation efficiency among the tested particles, making them suitable fillers in LED encapsulants.
BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS
(2023)
Article
Chemistry, Physical
Magdeline Tze Leng Lai, Kian Mun Lee, Thomas Chung Kuang Yang, Chin Wei Lai, Chia-Yun Chen, Mohd Rafie Johan, Joon Ching Juan
Summary: The construction of a p-n heterojunction photocatalyst successfully overcomes the low photo-catalytic activity caused by rapid charge recombination and limited photo-response range. In this study, an interlayer of expanded MoS2 coupled with Bi2WO6 (BW-IEM) photocatalyst was synthesized, achieving a Methylene Blue (MB) removal rate of up to 97% (5.18 x10-2 min-1) under the irradiation of low power 1W LED white light. The outstanding photocatalytic performance of the p-n heterojunctions BW-IEM photocatalyst is attributed to the enhancement of light harvesting, improvement in the separation of charge carriers, and coexistence of oxygen vacancy. The main reactive oxygen species (ROS) responsible for the photo-degradation of MB were center dot Oz radicals and center dot OH. This work provides a new strategy for the potential IEM photocatalyst as a matrix in a p-n heterojunction composite.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Polymer Science
Jin Kwei Koh, Chin Wei Lai, Mohd Rafie Johan, Sin Seng Gan, Wei Wei Chua
Summary: This study investigates the effects of silica on polyacrylamide (PAM) using comprehensive rheological data. Modified PAM shows distinct chemical structures compared to bare PAM, but both are hydrophilic fluids. The rheological performance of all modified PAM shows an undulated trend for all concentrations of silica and selected temperatures, but all modified PAM perform better than bare PAM. Therefore, a formulation of 0.5 wt% silica is promising for PAM modification, even simulating the performance of bored pile drilling. In terms of thermal stability, the rheological performance of bare PAM and modified PAM shows better results at 60 and 40°C, respectively.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Wan Nuramiera Faznie Wan Eddis Effendy, Rabiatul Basria S. M. N. Mydin, Srimala Sreekantan, Amirah Mohd Gazzali, Roshasnorlyza Hazan, Muhammad Yusri Musa
Summary: This study investigates the encapsulation efficiency of Cisplatin (CDDP)-titania nanotube arrays (TNA) using chitosan-coating strategies in various stimulated model systems. The results demonstrate efficient loading of CDDP onto TNA nanosystems using the top-filling method, with an encapsulation efficiency of 98.95 ± 7.02%. The nanosystem enables long-term sustained release of CDDP in different model systems, establishing an effective in vitro targeted cancer therapy model. Further investigation using in vivo models is necessary to validate these findings, particularly in the context of targeted cancer therapy applications.
JOURNAL OF MATERIALS RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Sina Yaghoubi, Aziz Babapoor, Sayyed Mojtaba Mousavi, Seyyed Alireza Hashemi, Vahid Rahmanian, Ahmad Gholami, Navid Omidifar, Mojtaba Binazadeh, Fatemeh Fallahi Nezhad, Yousef Mazaheri, Wei-Hung Chiang, Chin Wei Lai
Summary: Metal-organic framework (MOF) membranes, constructed with organic ligands and metal ions or clusters, have wide applications in biomedicine. However, there are still fundamental gaps in the studies on MOF membranes.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Review
Chemistry, Physical
Seyyed Mojtaba Mousavi, Seyyed Alireza Hashemi, Fatemeh Fallahi Nezhad, Mojtaba Binazadeh, Milad Dehdashtijahromi, Navid Omidifar, Yasamin Ghahramani, Chin Wei Lai, Wei-Hung Chiang, Ahmad Gholami
Summary: Metal-organic frameworks (MOFs) have shown great promise as carriers for drug delivery in various biological applications. Recent advancements in hybrid nanostructures have led to the development of innovative MOF-loaded nanocomposites with highly porous structures and low toxicity. This review study focuses on the use of MOF materials in cancer treatment, imaging, and antibacterial effects, particularly in oral cancer cells. It highlights the importance of accurately designing and producing anticancer and antibacterial agents to minimize side effects and maximize effectiveness, as well as the need for thorough testing of new anticancer drugs for efficacy and safety.
Review
Energy & Fuels
Shakeel Ahmed, Priynka Sharma, Satyaranjan Bairagi, Nelson Pynadathu Rumjit, Shivani Garg, Akbar Ali, Chin Wei Lai, Seyyed Mojtaba Mousavi, Seyyed Alireza Hashemi, Chaudhary Mustansar Hussain
Summary: Energy depository devices control energy utilization in various applications and the selection of materials for batteries and supercapacitors is crucial for enhancing energy storage capability. Traditional materials have environmental issues, leading to a switch towards eco-friendly biobased polymers. These polymers show great potential as energy repository dielectric layers in high-performing batteries and supercapacitors.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Nanoscience & Nanotechnology
Norhan Hussein, Rabiatul Basria S. M. N. Mydin, Wan Nuramiera Faznie Wan Eddis Effendy, Amirah Mohd Gazzali, Khairul Arifah Saharudin, Srimala Sreekantan
Summary: This study investigates the interaction of neuron-like SH-SY5Y cells on Titania nanotube arrays (TNA) surface in a nutrient-rich environment. The results show that FBS-loaded TNA exhibits zero-order FBS release and enhances the adhesion and proliferation of SH-SY5Y cells. The findings reveal the potential of TNA nano-topology in delivering FBS to neuronal cell lines and improving cellular proliferation activity.
INTERNATIONAL NANO LETTERS
(2023)
