Article
Nanoscience & Nanotechnology
Weichao Li, Liexing Zhou, Linkun Xie, Kunyong Kang, Juan Xu, Xijuan Chai
Summary: The study successfully fabricated a composite material consisting of g-C3N4 nanolayer/N, Gd, and Fe co-doped TiO2, and demonstrated that adjusting the amount of g-C3N4 nanosheets can enhance the photocatalytic performance of the composites.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Suresh Kumar Pandey, Manish Kumar Tripathi, V Ramanathan, Pradeep Kumar Mishra, Dhanesh Tiwary
Summary: This article characterizes the photocatalytic performance of the heterostructure g-C3N4/NiO for the mineralization of malachite green (MG) dye under UV light exposure in an aqueous medium. The synthesized catalyst exhibits superior optical band gap matching and regulates internal charge transfer of excitons within the heterojunction. The degradation of MG using the nanocomposite g-C3N4/NiO is achieved by the existence of superoxide radicals as the main active species, showing one of the highest turn over frequencies to date.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Multidisciplinary
N. A. Chopan, H. -T. -N. Chishti
Summary: Polypyrrole (PPy) and graphitic carbon nitride (g-C3N4) nanoparticles were added to ZnO nanorods to form a g-C3N4/PPy/ZnO (GPZ) photocatalytic system, resulting in improved charge-carrier transmission and separation. The GPZ photocatalyst exhibited outstanding photocatalytic activity, effectively degrading 99.0% of RhB within 60 minutes. The GPZ heterostructure also demonstrated superior antibacterial activity compared to other samples and excellent stability after multiple cycles.
MATERIALS TODAY CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Rashmiranjan Patra, Pranjyan Dash, Pradeep Kumar Panda, Po-Chih Yang
Summary: This article discusses the research on improving the photocatalytic activity of graphitic carbon nitride (g-C3N4) for wastewater treatment, and introduces titanate perovskites (TNPs) as an emerging photocatalyst with exceptional properties for environmental remediation and energy conversion. The different synthetic approaches and chemical composition of g-C3N4/TNP composites are presented, and the global research trends related to these materials are highlighted. The article also provides insight into the photocatalytic mechanisms, challenges, and future scope of these materials.
Article
Environmental Sciences
Jit Jang Ng, Lan Ching Sim, Wen-Da Oh, Pichiah Saravanan, Bo Tan, Kah Hon Leong
Summary: By creating a heterojunction between graphitic carbon nitride and bismuth phosphate, the unpaired free electron mobility was enhanced, leading to accelerated photodegradation of 2,4-dichlorophenols under sunlight irradiation. Through systematic studies on the synthesized composite, complete removal of 2,4-DCPs was achieved in 90 minutes under sunlight irradiation, highlighting its potential for future environmental remediation and solar spectrum harvesting enhancement.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Xiaoxia Ou, Pu Chen, Ke Zhao, Cunjie Xia
Summary: A novel ternary photocatalyst with a Z-scheme heterojunction was successfully synthesized by depositing Ag nanoparticles onto the surface of a ZnO/g-C3N4 composite. The as-synthesized photocatalysts exhibited significantly enhanced photodegradation efficiency for norfloxacin and rhodamine B under visible light irradiation, attributed to the widened range of visible light response and the efficient separation and migration of carriers facilitated by the introduction of Ag nanoparticles.
Article
Chemistry, Physical
Varsha D. Phadtare, Vinayak G. Parale, Taehee Kim, Kyu-Yeon Lee, Abhijit N. Kadam, Haryeong Choi, Younghun Kim, Rushikesh P. Dhavale, Sang-Wha Lee, Hyung-Ho Park
Summary: The new graphite-like C3N4(g-C3N4)/BaBi2Nb2O9 composites prepared by ultrasonic dispersion exhibit remarkable photocatalytic activities under solar light irradiation. The heterojunction formed by ultra-thin g-C3N4 nanosheets and BaBi2Nb2O9 particles significantly enhances the photodegradation efficiency of Rhodamine B. Additionally, the composite shows an enhanced photoinduced interfacial charge transfer effect, supported by photoluminescence spectroscopy analyses and photocurrent responses.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Paper & Wood
Wenjun Li, Hui Zhang, Wendou Chen, Limeng Yang, Hailiang Wu, Ningtao Mao
Summary: This study demonstrated the recycling and efficient utilization of powdered photocatalysts by loading them on supporting materials. The construction of a g-C3N4-TiO2 heterojunction on cotton fibers improved photocatalytic performance, with the cotton increasing the energy band gap of the nanocomposites. The self-cleaning experiments showed the modified cotton fabrics could effectively remove organic contaminants multiple times.
Article
Engineering, Environmental
Yuzhen Li, Zhaoxin Sun, Sufang Wang, Runbin Duan, Shaojie Wang, Shuo Li, Borong Lan, Lizhen Gao
Summary: In this study, a ternary heterojunction photocatalyst was successfully prepared and showed excellent performance in the degradation of tetracycline under visible light. It exhibited high stability and reusability, and a possible photodegradation mechanism was proposed based on the experimental results.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Materials Science, Multidisciplinary
Yunfeng Li, Zhiling Xia, Qing Yang, Linxi Wang, Yan Xing
Summary: With the rapid development of economy and modern industry, serious environmental pollution and energy shortage have become major urgent challenges to the human society. Photocatalysis is a promising technology to provide green energy. However, the limitations of g-C 3 N 4 , such as fast recombination of charges, limited light response range, and weak oxidation ability, restrict its photocatalytic performance. The construction of heterojunctions with g-C 3 N 4 and other semiconductor materials can effectively address these issues and improve the photocatalytic performance.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Chih-Yen Chen, Chia-Chieh Tseng
Summary: Unlike most composite nanostructured catalysts, Ga2S3 semiconductors and g-C3N4 heterojunction photocatalysts exhibit high efficiency in removing methylene blue due to stable absorption and physical properties. Ga2S3 nanosheets have 40% higher activities than P25-TiO2 catalysts. Ga2S3/g-C3N4 heterostructures show significantly improved light absorption and photocatalytic efficiency compared to Ga2S3 and g-C3N4 alone. The study also investigated the synthesis process parameters and evaluated the photocatalytic mechanism and oxidation species involved.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Review
Chemistry, Physical
Bicheng Zhu, Bei Cheng, Jiajie Fan, Wingkei Ho, Jiaguo Yu
Summary: Using semiconductor photocatalysis to convert solar energy into chemical energy is a viable strategy for addressing the energy and environmental crisis. Graphitic carbon nitride (g-C3N4) is a popular 2D photocatalyst with visible light response, low cost, and high stability, but single g-C3N4 photocatalyst has poor performance due to fast recombination of photogenerated electrons and holes. Hybridizing g-C3N4 with other 2D materials to construct 2D/2D heterojunction photocatalysts improves this limitation by offering large contact area and plentiful channels for the migration and separation of photogenerated charge carriers, inheriting the strengths of 2D structure such as high specific surface area and abundant active sites.
Article
Engineering, Environmental
Shahid Iqbal, Jianjun Liu, Hecheng Ma, Wenqi Liu, Shengli Zuo, Yingchun Yu, Ni Yan, Muhammad Asim Mushtaq
Summary: Fe@Fe2O3 core-shell nanoparticles were synthesized and adsorbed onto g-C3N4 nanosheets, forming Fe@Fe2O3/g-C3N4 nanocomposites. The unique morphology of the nanocomposites was characterized by a narrow dispersion of Fe@Fe2O3 nanostructures uniformly distributed on the g-C3N4 nanosheets. The study investigated the influence of reaction parameters on the reactivity and properties of iron, and explored the enhanced photoactivity of Fe@Fe2O3/g-C3N4 nanocomposites for RhB and phenol degradation.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Chemistry, Physical
Yukai Chen, Qian Wang, Hengming Huang, Jiahui Kou, Chunhua Lu, Zhongzi Xu
Summary: Constructing heterojunctions can enhance photocatalytic efficiency, inhibit the recombination of photoinduced electron-hole pairs, and increase hydrogen production rate. The MCS/CN heterojunction demonstrates stable photocatalytic performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Inorganic & Nuclear
Shuyan Qi, Xueting Liu, Ruiyan Zhang, Yiming Zhang, Huanyan Xu
Summary: In this study, a heterostructure of g-C3N4/BiOCl was prepared by hydrothermal method, and it was found that under a certain ratio, it exhibits higher photocatalytic activity, effectively degrading methylene blue.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Hao Huang, Yu-Xuan Li, Guo-Jing Jiang, Hui-Long Wang, Wen-Feng Jiang
Summary: The construction of a dye-sensitized BiOCl/R-TiO2 heterojunction system proved to be an effective strategy for enhancing photocatalytic potential, with the synergistic effects of efficient RhB-photosensitization, enhanced heterojunction effect, and suitable conduction band match between BiOCl and R-TiO2 facilitating improved electron transfer and charge separation for pollutant degradation.
INORGANIC CHEMISTRY
(2021)
Article
Multidisciplinary Sciences
Yuxuan Li, Yaoyao Han, Wenfei Liang, Boyu Zhang, Yulu Li, Yuan Liu, Yupeng Yang, Kaifeng Wu, Jingyi Zhu
Summary: By controlling the light helicity, the researchers observed spin-selective Bloch-Siegert shift in CsPbI3 perovskite quantum dots, which was accompanied by a higher ratio between the Bloch-Siegert and optical Stark shifts than predicted by the non-interacting model. The experimental observations were quantitatively reproduced using a model that explicitly accounted for excitonic effects, suggesting the importance of many-body interactions in correctly modeling the shift. These findings provide a basis for implementing these effects in information processing, optical modulation, and Floquet engineering.
NATURE COMMUNICATIONS
(2022)
Editorial Material
Nanoscience & Nanotechnology
Yuxuan Li, Kaifeng Wu
Summary: This paragraph describes a solution-processed, environmentally-friendly quantum dots material that can emit stable and highly pure streams of single photons, with an optical coherence time of up to 250 picoseconds.
NATURE NANOTECHNOLOGY
(2023)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)