Article
Chemistry, Physical
Keng Chen, Huazhang Guo, Jiye Zhang, Liang Wang, Minghong Wu
Summary: This work focuses on the development of a highly efficient photocatalyst for clean hydrogen production. The metal-free 2D/2D boron/g-C3N4 nanosheet heterojunction (B-CN) was designed and synthesized, which showed a hydrogen generation rate 35 times higher than g-C3N4. The tight heterojunction architecture allows for enhanced light absorption, increased carrier concentration, and efficient charge transfer, leading to improved photocatalytic activity.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Nannan He, Shihai Cao, Jiayu Gu, Ahmed Uddin, Chen Zhang, Yalin Yu, Huan Chen, Fang Jiang
Summary: 2D/2D heterojunction photocatalysts, especially the oxidized Sb/g-C3N4 2D/2D nanosheets heterojunction, show promising photocatalytic disinfection performance. The 5.0% Sb-SbOx/CNS exhibits the best photocatalytic activity and cycling stability, attributed to the strong coupling effect enhancing interfacial charge separation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Liezhen Zhu, Yue Chen, Youliang Shen, Yuhang Zhang, Dandan Men, Lingfang Qiu, Xun Xu, Jiangbo Xi, Ping Li, Shuwang Duo
Summary: This study presents the design and fabrication of novel g-C3N4/PDI@ZnIn2S4 2D/2D organic/inorganic hybrid heterojunctions, which are used as photocatalysts for the visible-light photodegradation of Rhodamine B. The composite photocatalysts displayed enhanced photocatalytic performance, with the optimal photocatalyst exhibiting significantly higher activity compared to other materials. The enhanced activity can be attributed to the close interface contact and matched band structure between g-C3N4/PDI and ZnIn2S4, which facilitate the separation and transfer of photo-induced charges, as well as the utilization of visible light. This work highlights the promising application prospects of g-C3N4/PDI@ZnIn2S4 photocatalysts in environmental remediation fields.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Manas Ranjan Pradhan, Dharitri Rath, Ratikanta Sethi, Braja B. Nanda, Binita Nanda
Summary: The introduction of MnO2 onto the g-C3N4 nanosheets significantly enhances the photocatalytic performance, with 3 wt% MnO2 modification showing the highest oxidation efficiency towards aromatic alcohols. This enhancement is attributed to heterojunction formation and the generation of active charged species responsible for the oxidation of aromatic alcohols through a free radical mechanism under visible light.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Ankush Majumdar, Utpal Ghosh, Anjali Pal
Summary: A novel visible-light-responsive 2D/2D g-C3N4/Bi4NbO8Cl nano-composite photocatalyst was successfully synthesized and demonstrated high photocatalytic degradation efficiency towards oxytetracycline. The improved performance can be attributed to the formation of a type-II heterojunction, which enhances visible light absorption and reduces recombination of photogenerated electron-hole pairs. Additionally, the nano-composite exhibited good stability after multiple cycles of degradation experiments, showing potential for low-cost and energy-efficient environmental remediation applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Bin Yang, Zhongwen Wang, Jiaojiao Zhao, Xiyin Sun, Rongjie Wang, Guangfu Liao, Xin Jia
Summary: A simple and template-free strategy was developed to prepare 1D/2D g-C3N4 isotype heterojunction with high separation efficiency and strong visible light absorption. The isotype heterojunction significantly improved the photocatalytic H-2 evolution activity and stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Ceramics
Qi Sun, Ying Sun, Miya Zhou, Huanmei Cheng, Haoyu Chen, Brian Dorus, Man Lu, Tao Le
Summary: This study proposes a facile method to synthesize an efficient photocatalytic material, CNZn heterojunction, for the degradation of sulfonamides. The optimized CNZn heterojunction exhibited significantly higher degradation efficiency for sulfamethoxazole compared to g-C3N4 and ZnO alone. The study also reveals the photodegradation mechanism of sulfamethoxazole and proposes a possible mechanism for enhanced degradation using a CNZn heterojunction photocatalyst.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Wenliang Liu, Yuqi Wang, Kai Qi, Yan Wang, Fushan Wen, Jiqian Wang
Summary: The intimately-contact 2D/2D heterojunction structure provides optimal charge transfer/separation interfaces for improved photocatalytic performance. In this study, a Cl doped g-C3N4 nanodisc/regular rectangular Bi2WO6 nanosheet heterojunction (ClCN/Bi2WO6) was constructed using an electrostatic self-assembly technique. The ClCN/Bi2WO6 exhibited significantly enhanced photocatalytic hydrogen generation and photodegradation performance compared to Bi2WO6. The mechanism of charge transfer and separation in the S-scheme heterojunction was investigated using density functional theory calculations. This research advances the development of 2D/2D heterojunction photocatalysts.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
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
Chemistry, Inorganic & Nuclear
Beibei Zhu, Jie Zhou, Lubin Ni, Guowang Diao
Summary: The Phosphorus-doped g-C3N4/ZnS composite photocatalyst was prepared by element doping and structuring a heterojunction, showing enhanced photocatalytic properties for degrading pharmaceutical wastewater with visible light irradiation. The design and synthesis of PCN/ZnS provide a new way for photodegrading pharmaceutical wastewater with improved photocatalytic performance.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Zengmin Wu, Chongyue Jin, Zhilin Li, Daien Yang, Yuanhua Xie, Min Wang
Summary: The MoS2 and g-C3N4 nanosheet co-modified Bi2WO6 ternary heterostructure catalyst (g-C3N4/MoS2/Bi2WO6) showed improved photocatalytic ability in degrading tetracycline under visible light with H2O2, with increased visible-light absorption and separation rate of photogenerated electron-hole pairs, demonstrating promising potential for further research in the field of antibiotics degradation.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Environmental Sciences
Mario Vino Lincy Gnanaguru, Mu. Naushad, Tetiana Tatarchuk, Makarand M. Ghangrekar, Shamik Chowdhury
Summary: This study developed a series of 2D materials-based heterojunctions by integrating graphitic carbon nitride (g-C3N4) with tungsten disulfide (WS2) for eliminating tetracycline (TC) and sulfamethoxazole (SMX) from water. The g-C3N4/WS2 material showed significantly improved photocatalytic activity, degrading TC (84%) and SMX (96%), compared to pristine g-C3N4 or WS2. The study also discussed the photocatalytic degradation pathways and demonstrated the potential of this 2D/2D heterojunction in wastewater treatment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Caijian Zhang, Meiying Jia, Zhengyong Xu, Weiping Xiong, Zhaohui Yang, Jiao Cao, Haihao Peng, Haiyin Xu, Yinping Xiang, Ying Jing
Summary: The efficiency of g-C3N4 in the photodegradation of fluoroquinolones antibiotics was limited by the low separation efficiency of carriers, which was effectively improved by constructing a two-dimensional/two-dimensional heterojunction. The prepared 2D/2D N-ZnO/CN heterojunction composites showed excellent photocatalytic performance in degrading antibiotics, with active species dominated by holes and superoxide radicals. This work enriched the engineering of 2D/2D heterojunctions for g-C3N4, providing a new possibility for solving antibiotic pollution in the environment by combining 2D MOFs-derivatives with g-C3N4.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
He Wang, Nana Guan, Zihan Feng, Wenjie Xiang, Huanxin Zhao, Xuejun Zhang
Summary: By engineering oxygen vacancies, a 2D/2D heterojunction photocatalytic material of MoO3/g-C(3)N(4) is synthesized and shows excellent performance in H-2 evolution and tetracycline degradation. The high photocatalytic ability of this material mainly comes from the interfacial interaction, efficient charge separation, and strengthened redox potential due to oxygen vacancies.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Min Xu, Yan Zhu, Jingkai Yang, Wei Li, Chaoyang Sun, Yan Cui, Lu Liu, Hongli Zhao, Bo Liang
Summary: A direct dual semiconductor photocatalytic system of BiVO4/2D g-C3N4 was fabricated through electrostatic self-assembly method, showing high separation efficiency of charge carriers due to built-in electric field and band bending effects. The ultrathin nanosheet structure of 2D g-C3N4 enhanced the built-in electric field, leading to excellent photocatalytic performance with significantly higher reaction rates compared to individual BiVO4 and 2D g-C3N4. The study provides insights into the role of built-in electric field in heterostructures and the fabrication of efficient direct dual semiconductor systems.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
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)