Article
Nanoscience & Nanotechnology
Minho Lee, Song- Han, Changkyu Kim, Subramaniam Velumani, Arum Han, Abdel Hadi Kassiba, Homero Castaneda
Summary: The ultrathin nanocomposite coatings of ZrO2/ZnO/TiO2 on stainless steel were found to provide excellent corrosion protection and antimicrobial activity. The coating exhibited significantly higher impedance values compared to uncoated steel, and promoted cell proliferation and effective bacterial killing efficiency.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Physics, Condensed Matter
Dong Fan, Zhihao Wang, Hengshuai Li, Haiquan Hu, Chenglin Bai, Feng Guo, Zhenbao Feng, Jun Li, Xiaocheng Hu, Maoye Yin, Zhi Li
Summary: This paper investigates the potential of a new two-dimensional graphene-like composite g-C13N5H as a photocatalytic material. By using first principles calculations and studying the electronic structure, it is found that g-C13N5H has an appropriate band gap and band edge positions for absorbing light and breaking down water. To further enhance the photocatalytic efficiency, a heterojunction with a Schottky barrier is also employed.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Materials Science, Multidisciplinary
S. Sudhagar, S. Sathees Kumar, I. J. Isaac Premkumar, V. Vijayan, R. Venkatesh, S. Rajkumar, Mandeep Singh
Summary: The hydrothermal method was used to synthesize TiO2 nanoparticles and TiO2/La2O3, TiO2/Al2O3 composites. The crystal structure, shape, and optical characteristics were studied using FTIR spectroscopy, XRD, UV-Vis absorption spectroscopy, and SEM. Photocatalytic properties were evaluated by degrading methylene blue (MB) and crystal violet (CV) dyes under UV and visible light. TiO2/La2O3 exhibited the highest photocatalytic efficiency, while TiO2/Al2O3 showed the lowest efficiency.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Environmental Sciences
Azad Kumar, Chaitany Jayprakash Raorane, Asad Syed, Ali H. Bahkali, Abdallah M. Elgorban, Vinit Raj, Seong Cheol Kim
Summary: The rapid industrialization has led to the release of harmful contaminants into water bodies, posing risks to health and the environment. In this study, inorganic nanocomposites were prepared to treat toxic dyes. The synthesized TiO2/PAni/GO nanocomposites exhibited enhanced ability to degrade Thymol Blue and Rose Bengal dyes through photocatalytic reactions. These findings have potential implications for water pollution control.
ENVIRONMENTAL RESEARCH
(2023)
Article
Materials Science, Paper & Wood
Md Mostafizur Rahman, Dayong Huang, Chinomso M. Ewulonu, Chao Wang, Shigenori Kuga, Min Wu, Yong Huang
Summary: The study coated GO and TiO2 nanomaterials on large-scale cellulose substrates using a simple dip-coating method, allowing for the reusability of photocatalysts and successful degradation of organic pollutants under visible light irradiation. The research established a practical method for directly degrading pollutants in lakes or rivers.
Article
Chemistry, Physical
Zhiru Yang, Ziyong He, Wanli Wu, Yang Zhou
Summary: Layered porous graphene prepared by laser irradiation of double-layer polymer shows better quality and significantly enhances dye degradation efficiency as a photocatalyst. The introduction of graphene can promote the separation of photogenerated electrons and holes, and experimental results indicate that O-2(-) and h(+) species are the main reactive species in the reaction system.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Qiushi Jiang, Zhaolian Han, Yafeng Yuan, Chuan Cai, Jinying Li, Zhiqiang Cheng
Summary: This study introduces the reaction between nano-ZnO and H2C2O4 in the electrospinning solution to effectively adjust the heterostructure of TiO2/ZnO and control the particle size of nano-spheres. The soaking and calcination process allows ZnO to fully combine with the TiO2 precursor, forming a phase-mixed heterojunction. The phase-mixed structure enhances light utilization and results in enhanced photocatalytic activity and cycling stability of TiO2/ZnO mixed materials. This research provides a new approach for the preparation of controllable metal oxide phase-mixed materials.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Physical
Dingyu Li, Chengwu Yang, Saravanan Rajendran, Jiaqian Qin, Xinyu Zhang
Summary: In this study, a highly efficient Ti3CN@TiO2/CdS photocatalyst was reported. Ti3CN@TiO2 materials with different morphologies were obtained from Ti3AlCN by controlling the etching time, and CdS nanoparticles were loaded onto the catalyst to improve its photocatalytic efficiency.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
S. Jagadeesh Babu, Murthy Muniyappa, Rao V. Navakoteswara, Ravi Mudike, Mahesh Shastri, Sardar Tathagata, Prasanna D. Shivaramu, M. V. Shankar, C. S. Ananda Kumar, Dinesh Rangappa
Summary: This work reports an improved hydrogen evolution activity of visible light active TiO2-x photocatalyst by introducing reduced graphene oxide. The characteristic studies reveal that RGO/TiO2-x nanocomposites were sufficiently durable and efficient for photocatalytic hydrogen generation under the visible light spectrum.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Energy & Fuels
Ioana Tismanar, Alexandru Cosmin Obreja, Octavian Buiu, Anca Duta
Summary: This research reports on the fabrication of visible and solar-active photocatalytic bi-layered films, and the testing of their crystallinity degree, surface morphology, and elemental composition. The results showed that increasing the filler content can improve the process efficiency at high irradiance values, but the increase in photocatalytic efficiencies is limited due to electron-hole recombination. The thin films also demonstrated good stability in aqueous medium.
Article
Electrochemistry
Yuan Xu, Yunsheng Qian, Jianliang Qiao, Jun Niu, Shaobo Cui, Shengzhao Wang
Summary: The study successfully synthesized photocatalysts based on the nanocomposite of TiO2 and graphene oxide (TiO2/GO-x). The nanocomposites showed excellent photocatalytic degradation performance, with TiO2/GO-8 exhibiting the best performance under both UV and visible light irradiation.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Ghader Hosseinzadeh, Naser Ghasemian, Sahar Zinatloo-Ajabshir
Summary: The TiO2/graphene nanocomposite supported on clinoptilolite nanoplate prepared by hydrothermal method showed significantly higher photocatalytic degradation efficiency for nitenpyram insecticide under visible light, mainly due to the advantages of clinoptilolite and graphene, such as microporous structure and enhancement of effective surface area. The hydroxyl radicals were identified as the main active species responsible for the photocatalytic degradation of nitenpyram. This study provides a new insight for fabricating more effective zeolite and graphene-based nanocomposite photocatalysts for environmental remediation.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Review
Environmental Sciences
Gomathi Ramalingam, Nagapandiselvi Perumal, A. K. Priya, Saravanan Rajendran
Summary: Water is essential for all living things, but industrialization has led to water contamination, affecting ecosystems. The lack of treatment in reusing wastewater is the root issue. Therefore, water treatment is crucial for preserving the ecosystem and human health. In recent years, graphene-based photocatalysts have gained attention for their exceptional properties in wastewater treatment.
Article
Chemistry, Inorganic & Nuclear
M. Sabarinathan, P. Bharathi, S. Harish, Y. Hayakawa
Summary: A composite of MoS2/TiO2/CuS nanostructures was prepared by hydrothermal method, and the structural and photocatalytic properties were investigated. XRD patterns revealed the formation of hexagonal and anatase structure of MoS2, CuS, and TiO2, respectively. XPS confirmed the chemical state of Mo, S, Cu, Ti, and O. Morphological analysis revealed the formation of 2D layered MoS2 and CuS nanostructures on the surface of TiO2 spheres. The prepared MoS2/TiO2/CuS photocatalyst exhibited enhanced photocatalytic activity on the degradation of methylene blue (MB) (98.96%) under visible light irradiation. The detailed photocatalytic mechanism explains the enhancement in the degradation efficiency.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Biochemistry & Molecular Biology
Daniela Bala, Iulia Matei, Gabriela Ionita, Dragos-Viorel Cosma, Marcela-Corina Rosu, Maria Stanca, Carmen Gaidau, Maria Baleanu, Marian Virgolici, Ioana Stanculescu
Summary: The properties of newly synthesized Cu2O/CuO-decorated TiO2/graphene oxide (GO) nanocomposites were analyzed to gain insights into their photocatalytic behavior and various applications. The results showed that the nanocomposites exhibited excellent photocatalytic activity and antibacterial properties.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Hongli Tang, Xiang Qi, Weijia Han, Long Ren, Yundan Liu, Xingyan Wang, Jianxin Zhong
APPLIED SURFACE SCIENCE
(2015)
Article
Materials Science, Ceramics
Zhen Zhang, Long Ren, Weijia Han, Lijun Meng, Xiaolin Wei, Xiang Qi, Jianxin Zhong
CERAMICS INTERNATIONAL
(2015)
Article
Materials Science, Multidisciplinary
Zongyu Huang, Weijia Han, Hongli Tang, Long Ren, D. Sathish Chander, Xiang Qi, Han Zhang
Article
Chemistry, Multidisciplinary
Yuetao Zhao, Huaiyu Wang, Hao Huang, Quanlan Xiao, Yanhua Xu, Zhinan Guo, Hanhan Xie, Jundong Shao, Zhengbo Sun, Weijia Han, Xue-Feng Yu, Penghui Li, Paul K. Chu
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2016)
Article
Optics
Jingdi Zhang, Xuefeng Yu, Weijia Han, Bosai Lv, Xiaohong Li, Si Xiao, Yongli Gao, Jun He
Article
Chemistry, Multidisciplinary
Helmut Schaefer, Karsten Kuepper, Klaus Mueller-Buschbaum, Diemo Daum, Martin Steinhart, Joachim Wollschlaeger, Ulrich Krupp, Mercedes Schmidt, Weijia Han, Johannes Stangl
Article
Nanoscience & Nanotechnology
Weijia Han, Peilong Hou, Shamaila Sadaf, Helmut Schaefer, Lorenz Walder, Martin Steinhart
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Chemistry, Physical
Helmut Schaefer, Karsten Kuepper, Mercedes Schmidt, Klaus Mueller-Buschbaum, Johannes Stangl, Diemo Daum, Martin Steinhart, Christine Schulz-Koelbel, Weijia Han, Joachim Wollschlaeger, Ulrich Krupp, Peilong Hou, Xiaogang Liu
CATALYSIS SCIENCE & TECHNOLOGY
(2018)
Article
Chemistry, Multidisciplinary
Weijia Han, Karsten Kuepper, Peilong Hou, Wajiha Akram, Henning Eickmeier, Joerg Hardege, Martin Steinhart, Helmut Schaefer
Article
Chemistry, Physical
Weijia Han, Chen Zang, Zongyu Huang, Han Zhang, Long Ren, Xiang Qi, Jianxin Zhong
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2014)
Article
Chemistry, Physical
Weijia Han, Siwei Luo, Dirk Broeker, Norbert Vennemann, Markus Haase, Georg S. Duesberg, Martin Steinhart
Summary: The study focuses on improving the self-lubricating properties of technical systems and devices components by replacing continuous coatings with dry lubricant microparticle arrays. Synthesizing MoS2 microparticle arrays and transferring them to polymer monolith surfaces can overcome the drawbacks of continuous coatings such as poor adhesion and crack propagation.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Optics
Weijia han, S. E. B. A. S. T. I. A. N. Reiter, J. O. N. Schlipf, C. H. R. I. S. T. I. A. N. Mai, D. A. V. I. D. E. Spirito, J. O. S. M. Y. Jose, C. H. R. I. S. T. I. A. N. Wenger, Inga A. Fischer
Summary: This research presents a CMOS compatible TiN nanohole array on top of a multilayer stack, which allows for high sensitivity refractive index sensing in the range of 800 to 1500 nm. The TiN nanohole array is fabricated using an industrial CMOS compatible process and shows Fano resonances under oblique excitation. Simulation results and spectroscopic characterizations match well, indicating the potential for efficient devices in sensing applications.
Article
Nanoscience & Nanotechnology
Peilong Hou, Weijia Han, Michael Philippi, Helmut Schaefer, Martin Steinhart
ACS APPLIED NANO MATERIALS
(2018)
Article
Chemistry, Multidisciplinary
Weijia Han, Elzbieta Stepula, Michael Philippi, Sebastian Schluecker, Martin Steinhart
