Article
Chemistry, Multidisciplinary
Dominika Bury, Michal Jakubczak, Muhammad Abiyyu Kenichi Purbayanto, Milosz Rybak, Magdalena Birowska, Anna Wojcik, Dorota Moszczynska, Karamullah Eisawi, Kaitlyn Prenger, Volker Presser, Michael Naguib, Agnieszka Maria Jastrzebska
Summary: MBenes, post-MXene materials with boron composition, were successfully obtained via wet-chemical etching and delamination. The best-delaminated 48-MBene exhibited Mo2B2 orthorhombic lattice arrangement and demonstrated excellent photocatalytic activity in decomposing organic contaminants. Compared to MXene, MBene showed two-to-three times faster kinetics in dye decomposition under visible light irradiation. These findings open new possibilities for utilizing MBenes in environmental remediation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Engineering, Environmental
Moses Gbenga Peleyeju, Elvera Logie Viljoen
Summary: Photoelectrocatalysis (PEC) is an advanced oxidation water treatment technology that focuses on finding photocatalytic materials with excellent photo (electro)catalytic properties, with tungsten trioxide (WO3) being one of the most promising photocatalysts for solar water treatment technology. Studies have shown that semiconductors and their composites can be used to catalyze the degradation of organic pollutants in water.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Chemistry, Physical
M. Jothibas, M. Elayaraja, E. Paulson, Soorya Srinivasan, B. Arun Kumar
Summary: Doping Ni and Cd into ZnS nanoparticles can improve their microstructure, morphology, and optical properties. The (ZnS1-0.05Ni0.05Cd0.01) sample exhibits excellent photocatalytic degradation activity for organic pollutants in wastewater, with a degradation rate of 96.67% for Methylene Blue. The findings demonstrate the potential of minimal doping concentrations for dynamic degradation of organic dyes.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Zhixiong Yang, Jiquan Wang, Junting Wang, Meng Li, Qiang Cheng, Zhuangzhuang Wang, Xiaotian Wang, Jiaming Li, Yuan Li, Gaoke Zhang
Summary: This study prepared two-dimensional WO3-x nanosheets with rich oxygen vacancies using solvothermal synthesis, and found that these nanosheets exhibited excellent photocatalytic activity for nitrogen fixation under visible light irradiation. The nanosheets demonstrated a significantly higher yield rate of ammonia compared to nanoparticles with poor oxygen vacancies. The presence of oxygen vacancies induced by the nanosheet structure served as active sites for chemisorption of nitrogen and facilitated electron transfer, enhancing the overall efficiency of the photocatalytic process.
Article
Chemistry, Multidisciplinary
C. Y. Ma, R. T. Wang, G. H. Zhao, Q. Y. Zhang
Summary: The construction of a matchable multi-heterojunction with appropriate morphology is an effective strategy for improving the performance of semiconductor photocatalysts in degrading organic pollutants. In this study, TiO2/WO3/Bi2WO6 heterojunction composite photocatalysts were fabricated through a hydrothermal method using binary WO3/Bi2WO6 nanosheets coupled with various contents of mesoporous anatase TiO2 nanoparticles. The investigation on the structure and properties of the TiO2/WO3/Bi2WO6 ternary photocatalysts revealed that the optimized Ti/W ratio of 1:2 resulted in the highest visible light-irradiated MB degradation, with a degradation rate 9.5 times and 2.8 times higher than that of pure TiO2 and pristine WO3/Bi2WO6 nanosheets, respectively. The enhanced photocatalytic activity can be attributed to the improved separation efficiency of photoinduced electron-hole pairs and the presence of more active adsorption sites in the unique multi-heterojunction structure.
JOURNAL OF NANOPARTICLE RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Daoguang Teng, Jie Qu, Peng Li, Peng Jin, Jie Zhang, Ying Zhang, Yijun Cao
Summary: This study developed a green strategy to synthesize a high-performance photocatalyst, α-Bi2O3/BiOCl composite material, for the degradation of organic dyes. The composite material exhibited excellent photocatalytic activity and a high removal rate under visible light irradiation.
Article
Engineering, Environmental
J. O. Tijani, M. N. Abdullahi, M. T. Bankole, S. Mustapha, T. C. Egbosiuba, M. M. Ndamitso, A. S. Abdulkareem, E. Muzenda
Summary: The photocatalytic degradation of local dyeing wastewater by Al/B co-doped WO3 nanoparticles showed enhanced performance, with significant reduction in COD and TOC levels and decreased toxicity. The nanoparticles exhibited faster degradation of dyeing wastewater compared to undoped WO3, with pseudo-first order kinetics. The treated wastewater had almost no toxicity after 24 hours and the photocatalyst could be reused for 5 cycles, indicating excellent potential for practical application.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Fengliang Wang, Ruiqi Fang, Xin Zhao, Xiang-Peng Kong, Tingting Hou, Kui Shen, Yingwei Li
Summary: This work presents an in situ topological transformation strategy to enhance the efficiency of CO2 photocatalytic conversion by integrating uniform Co-based species into multishelled superstructures. The study finds that the ultrathin nanosheet assembled ZnCo bimetallic hydroxide exhibits high photocatalytic efficiency for CO2 reduction.
Article
Nanoscience & Nanotechnology
Rashi Gusain, Neeraj Kumar, Francis Opoku, Penny Poomani Govender, Suprakas Sinha Ray
Summary: Efficient wastewater treatment is crucial for preserving health and life on the planet. MoS2 nanosheet/ZnS-based composites show high photocatalytic activity in degrading oxytetracycline, with optimized parameters aiding in reducing charge carrier recombination and enhancing degradation efficiency.
ACS APPLIED NANO MATERIALS
(2021)
Article
Environmental Sciences
Benjie Zhu, Guofei Jiang, Can Kong, Junzhi Sun, Fang Liu, Yongqiang Wang, Chaocheng Zhao, Chunshuang Liu
Summary: N-doping ZnS nanospheres with Zn vacancy and porous surface were prepared by a simple one-pot hydrothermal method to improve visible light response. The N-ZnS showed excellent visible light response, reduced electron-hole recombination and photocorrosion, and accelerated electron flow. Under visible light, the photocatalytic degradation efficiency of tetracycline and 2,4-dichlorophenol was high. The presence of Zn vacancy played a key role in enhancing the photocatalytic activity.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Amal Abd Elhakim, Maged El-Kemary, Mohamed M. Ibrahim, Ibrahim M. El-Mehasseb, Hamdy S. El-Sheshtawy
Summary: The research demonstrates the synergistic effect between adsorption and photocatalytic activity in heterocatalysis, improving the efficiency of removing organic and inorganic pollutants. The use of Ag NPs decorated WO3/GO composite enhances the catalytic and photocatalytic performance, especially in the removal of water pollutants under visible light irradiation.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Ashok Kumar Chakraborty, Sumon Ganguli, Sandipan Bera
Summary: Covering BiOCl/Bi3O4Cl composite with a monolayer of WO3 significantly enhances the photocatalytic activity under visible light, with 0.2 mol% of WO3 found to be the optimal amount. The role of WO3 is to increase the adsorption affinity of WO3/BiOCl/Bi3O4Cl and improve the chemical durability of BiOCl/Bi3O4Cl.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
Ning Liu, Rumin Li, Jiahui Zhu, Qi Liu, Rongrong Chen, Jing Yu, Ying Li, Hongsen Zhang, Jun Wang
Summary: ZnS/WO3 composites were prepared by coprecipitation method to construct a high-efficiency Z-scheme heterojunction photocatalyst for the photocatalytic reduction of U(VI). The composites showed improved visible light absorption, photoreduction ability, and photocatalytic activity compared to WO3 and ZnS. Under visible light irradiation, the ZnS/WO3 composites exhibited higher photoreduction performance of U(VI), with a maximum extraction capacity of 1.52 g g-1. Moreover, the composites showed a high uranium reduction ability under natural light, with a removal efficiency of 93.4%.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Xiandi Guo, Dongguang Yin
Summary: Metal-organic frameworks (MOFs) are a new type of porous crystal nanomaterials with potential for various applications. However, their photocatalytic applications are limited due to the rapid recombination rate of charge carriers. In this study, the researchers successfully enhanced the sunlight-driven photocatalytic activity of a MOF material by constructing a hybrid with MoSe2 nanoparticles. This work provides a new strategy to improve the photocatalytic performance of MOF nanomaterials.
Article
Electrochemistry
Xinmin Ding, Wanli Liu, Yi Feng, Jian Liu, Xuebing Zeng, Ran Zhou, Xiaoya Zhang, Rui Wang, Qi Guo
Summary: This study focused on the characterization of WO3 and Zn-doped WO3, as well as their application as photocatalysts for the degradation of Rhodamine B under visible light radiation. The results showed that Zn-doped WO3 exhibited higher photocatalytic activity and faster degradation rate, making it effective for the treatment of RhB contaminant in water and wastewater.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2022)
Article
Environmental Sciences
K. Bhuvaneswari, G. Palanisamy, T. Pazhanivel, T. Maiyalagan, P. Shanmugam, Andrews Nirmala Grace
Summary: A Metal organic framework (MOF) supported layered triple hydroxide (LTH) 2D/2D hybrid material was prepared using a simple hydrothermal method, and its photophysical properties were analyzed through various methods. The degradation efficiency of the MOF-5/LTH hybrid sample was found to be significantly higher, attributed to enhanced visible light absorption and efficient separation and transportation of photoinduced electrons and holes.
Article
Environmental Sciences
G. Palanisamy, Nora Hamad Al-Shaalan, K. Bhuvaneswari, G. Bharathi, G. Bharath, T. Pazhanivel, V. E. Sathishkumar, Madan Kumar Arumugam, S. K. Khadeer Pasha, Mohamed A. Habila, Adel El-Marghany
Summary: In this study, a facile wet-impregnation method was used to prepare a graphene-like carbon nitride nanosheet/ZnS quantum dots/ferromagnetic CoFe2O4 nanoparticle nanohybrid photocatalyst with excellent separability and reusability. The nanohybrid exhibited superior visible-light-active photocatalytic performance, making it applicable in eco-friendly dye degradation processes.
ENVIRONMENTAL RESEARCH
(2021)
Article
Chemistry, Physical
N. Elavarasan, S. Vignesh, M. Srinivasan, G. Venkatesh, G. Palanisamy, P. Ramasamy, Baskaran Palanivel, Abdullah M. Al-Enizi, Mohd Ubaidullah, Vasudeva Reddy Minnam Reddy, Woo Kyoung Kim
Summary: In this study, a graphene-enhanced g-C3N4/ZnO-Ag composite photocatalyst was prepared and characterized. The composite showed excellent photocatalytic activity and cytotoxicity, making it a potential candidate for dye pollution treatment and cancer prevention.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
G. Palanisamy, K. Bhuvaneswari, T. Pazhanivel, R. Shankar, Khadijah Mohammedsaleh Katubi, Norah Salem Alsaiari, Mohamed Ouladsmane
Summary: In this study, ZnS QDs, Bi/β-Bi2O4, and ZnS/Bi/β-Bi2O4 nanocomposites were synthesized, showing superior photocatalytic activity against toxic pollutants. The ZnS/Bi/β-Bi2O4 nanocomposite demonstrated 3 times higher efficiency as a photocatalyst than pristine ZnS QDs and good stability for photocatalytic activities. Additionally, scavenger tests were conducted to understand the possible mechanism of photodegradation, offering potential for practical application in wastewater treatment.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Materials Science, Ceramics
Manickam Chozhanathmisra, Loganathan Murugesan, Arukkani Murugesan, Govindasamy Palanisamy, Rangappan Rajavel
Summary: Bone tissue engineering is an attractive field of research due to the increasing number of orthopedic diseases and injuries. This study aimed to observe bone formation and osseointegration on different composite-coated implant surfaces. The results showed that the developed biocomposite coating improved both mechanical and biological properties.
CERAMICS INTERNATIONAL
(2022)
Article
Environmental Sciences
Bhuvaneswari Kandasamy, Palanisamy Govindasamy, Pazhanivel Thangavelu, Jayaraman Theerthagiri, Ahreum Min, Myong Yong Choi
Summary: The fabrication of layered triple hydroxides (LTH) doped with different weight percentages of yttrium (Y) was investigated using hydrothermal method, with the 1 wt.% Y-doped LTH showing the highest photocatalytic degradation efficiency for methylene blue dye under visible light irradiation. The optimized LTH exhibited improved photocatalytic performance due to enhanced visible light absorption, reduced transmission, and improved electron-hole separation.
Article
Materials Science, Multidisciplinary
G. Venkatesh, G. Palanisamy, M. Srinivasan, S. Vignesh, N. Elavarasan, T. Pazhanivel, Abdullah M. Al-Enizi, Mohd Ubaidullah, Alamgir Karim, K. M. Prabu
Summary: The perovskite CaSnO3/g-C3N4 heterostructure nanocomposite was successfully prepared via a solid-state route, and its photocatalytic performance was investigated. The introduction of g-C3N4 improved the separation of photogenerated electrons and holes, leading to enhanced photocatalytic efficiency. The synthesized material exhibited high degradation efficiency towards methylene blue dye under UV-visible light, and showed good stability and reuseability.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Chemistry, Physical
G. Venkatesh, N. Elavarasan, M. Srinivasan, G. Palanisamy, Romulo R. Macadangdang, S. Vignesh, P. Ramasamy, H. Elhosiny Ali, Mohd Shkir, Zubair Ahmad
Summary: In this work, a novel ZnSnO3/rGO/MoS2 nanocomposite was prepared and its photocatalytic performances were investigated. The ZSGM nanocomposite exhibited high photocatalytic activity for the degradation of dye pollutants under UV-visible light illumination, with the highest removal rate achieved for Rh B degradation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
G. Palanisamy, S. Vignesh, M. Srinivasan, G. Venkatesh, N. Elavarasan, T. Pazhanivel, P. Ramasamy, Shoyebmohamad F. Shaikh, Mohd Ubaidullah, Vasudeva Reddy Minnam Reddy
Summary: The magnetically recoverable La(OH)(3)/alpha-MnO2/MnFe2O4 nanocomposite prepared via a simple wet impregnation process exhibits remarkable photocatalytic activity. The ferromagnetic behavior of MnFe2O4 nanoparticles and the high light absorption capacity of alpha-MnO2 nanorods contribute to the improved photocatalytic performance. This composite material shows potential applications in the energy and environmental sectors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Electrical & Electronic
Bhuvaneswari Kandasamy, Sreeja Balakrishnapillai Sussela, Radha Sankararajan, Palanisamy Govindasamy, Pazhanivel Thangavelu, Vignesh Shanmugam, Elavarasan Nagaraj, Venkatesh Gopal, Srinivasan Manickam, Ramasamy Perumalsamy
Summary: Different weight percentages of Sr2+ doped Er2O3 nanoparticles were successfully prepared and characterized for their structural, morphological, elemental, and optical properties. The 5% Sr2+ doped Er2O3 NPs showed significantly enhanced photocatalytic degradation efficiency against Rh B dye under UV-visible light irradiation, attributed to the synergistic effect of the strong metal-support interaction between Sr2+ and Er2O3 NPs. The photocatalytic degradation of the 5% Sr2+ doped Er2O3 sample reached 93.02% in 75 min of irradiation, and maintained good photocatalytic efficiency after five cycles of recycling.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Multidisciplinary Sciences
Palanisamy Govindasamy, Bhuvaneswari Kandasamy, Pazhanivel Thangavelu, Selvaraj Barathi, Maiyalagan Thandavarayan, Mohd Shkir, Jintae Lee
Summary: This study developed a highly efficient photocatalyst composed of eggshell-derived hydroxyapatite nanoparticles and two-dimensional g-C3N4 nanosheets for the degradation of hazardous dyes and pharmacological drug wastes.
SCIENTIFIC REPORTS
(2022)
Article
Nanoscience & Nanotechnology
G. Marimuthu, G. Bharathi, G. Palanisamy, Munirah D. Albaqami, Abdulnasser Mahmoud Karami, G. Mani, T. Pazhanivel
Summary: In this study, MMn2O4 and MMn2O4/rGO (M = Ni, Co) samples were successfully synthesized and characterized by XRD and FESEM analysis. Gas sensors for ammonia detection were fabricated, with CoMn2O4/rGO nanocomposite sample showing higher sensitivity and shorter response/recovery time. Tests on stability and selectivity were conducted, and the sensing mechanism of NH3 detection was discussed.
APPLIED NANOSCIENCE
(2022)
Article
Chemistry, Physical
G. Palanisamy, G. Venkatesh, M. Srinivasan, K. Bhuvaneswari, N. Elavarasan, S. Vignesh, T. Pazhanivel, Mohd Shkir, Jabir Hakami, Jintae Lee
Summary: In this study, a novel g-C3N4/alpha-Bi2O3/MWCNT nanocomposite was successfully synthesized using a wet impregnation technique. The nanocomposite exhibited excellent photocatalytic performance for the decomposition of mixed dyes. The results suggest that the g-C3N4/alpha-Bi2O3/MWCNT nanocomposite has potential practical applications in wastewater treatment and shows good cyclic photostability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Nagaraj Elavarasan, Chellakannu Rajkumar, Gopal Venkatesh, Manickam Srinivasan, Govindasamy Palanisamy, Devendiran Shobana Priyanka, Haekyoung Kim
Summary: Co3O4/ZnO-Cu nanocomposites were successfully prepared by a facile hydrothermal method and their photocatalytic activity was investigated for dye degradation. The synthesized Co3O4/ZnO-Cu nanocomposites exhibited significantly higher degradation efficiency and recyclability, making them highly promising for wastewater treatment and other environmental applications.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Chemistry, Physical
Govindasamy Palanisamy, Sunyoung Park, Jin-Hyung Lee, Jintae Lee
Summary: In this study, alizarin-loaded hydroxyapatite nanorods containing SnO2 (Ali-HAp-SnO2) nano-composite was fabricated to enhance the stability and release profile of the antibiofilm agent alizarin. The Ali-HAp-SnO2 nano-composite effectively removed Congo red (CR) and inhibited Staphylococcus aureus biofilm formation. The results indicate that the Ali-HAp-SnO2 nano-composite has significant antibiofilm activity and dye removal capacity.
APPLIED SURFACE SCIENCE
(2023)
