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, Chemical
Vengatesan M. Rangaraj, Jae-In Yoo, Jang-Kun Song, Vikas Mittal
Summary: A hierarchical three-dimensional MnMoO4@g-C3N4/CNT hybrid ternary composite was synthesized. MnMoO4@g-C3N4/CNT and g-C3N4/CNT electrodes were used as cathode and anode in the hybrid capacitive deionization system. The MnMoO4@g-C3N4/CNT electrode showed a specific capacitance of 252.4 Fg(-1) and a high salt adsorption capacity of 43.6 mg.g(-1) in 1 M NaCl solution. The MnMoO4@g-C3N4/CNT // g-C3N4/CNT-based HCDI cell exhibited excellent cycling stability with a retention of 91% after 10 cycles.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Polymer Science
Kewei Shu, Jiazhen Zhou, Xiaojing Wu, Xuan Liu, Liyu Sun, Yu Wang, Siyu Tian, Huizhu Niu, Yihao Duan, Guangyu Hu, Haihua Wang
Summary: In this study, g-C3N4 nanosheets were introduced as a nanofiller to modify the properties of PVDF-HEP copolymer electrolytes in all-solid-state sodium-ion batteries and sodium-metal batteries. The incorporation of g-C3N4 improved the electrical and mechanical properties of the composite electrolyte, resulting in enhanced ionic conductivity and stable reversible capacity. This research provides a promising approach for the development of high-performance solid-state sodium-ion batteries.
Review
Energy & Fuels
Nur Ain Masleeza Harun, Norazuwana Shaari, Zatil Amali Che Ramli
Summary: Fuel cells are the most promising alternative green and clean energy source in the future due to their low carbon emissions. Researchers have made efforts to develop materials that can reduce the cost of fuel cells. Graphitic carbon nitride (g-C3N4) is frequently mentioned in fuel cell applications because of its unique features.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
S. Kumar, P. -h. Weng, Y. -p. Fu
Summary: The focus of this study is on tuning the capacitive performance of nanostructured nickel-metal-organic framework (Ni-MOF) as a high-performance electrode material for supercapacitors. The performance enhancement is achieved by selecting a material combination that includes a metal oxide, carbonaceous, conductive polymer comprising nickel oxide/graphitic carbon nitride/polyaniline. Various characterization tools are used to confirm the properties of the tuned quaternary composite, which exhibits a battery-type storage mechanism and delivers high specific capacitance and retention ability. The fabricated supercapacitors show excellent stability and higher energy density compared to ternary-based supercapacitors.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Materials Science, Ceramics
Mengfan Wang, Zhentao Cui, Hongliang Xu, Mingliang Li, Bo Song, Hailiang Wang, Gang Shao, Hailong Wang, Hongxia Lu, Rui Zhang
Summary: Melamine pretreated with hydrochloric acid was mixed with diatomite-based porous ceramics and heated up to 550 degrees C to obtain g-C3N4/diatomite-based porous ceramic composites. The photocatalytic activity of the composites was found to be greatly influenced by the pretreatment of melamine and the intermediate temperature holding.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Applied
Xiangliang Wang, Gaoran Li, Minjie Li, Ruiping Liu, Haibo Li, Tengyu Li, Mingzhu Sun, Yirui Deng, Ming Feng, Zhongwei Chen
Summary: By developing a multifunctional polysulfide barrier reinforced material, improving battery performance, enhancing sulfur electrochemistry efficiency, and achieving excellent cycling stability and rate capability, the study demonstrates that Li-S cells based on g-C3N4/CNT separator exhibit superior performance with high specific areal capacity.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Engineering, Environmental
Hao Luo, Jiaxin Yan, Yiwei Shan, Jianwen Zhou, Jun Yu, Bruno Boury, Hui Wu, He Xiao, Liulian Huang, Zhanhui Yuan, Lihui Chen
Summary: Dual covalent decoration of graphitic carbon nitride (CN) with covalent organic frameworks (COF) and carboxylated carbon nanotubes (CNT) can enhance the efficiency of photocatalytic ammonia (NH3) production under visible light. The introduction of COF helps regulate the band gap and increase the specific surface area and N-2 adsorption ability. The introduction of CNT enhances optical light harvesting and accelerates the transfer of photo-excited electrons, maintaining efficient separation of photo-generated carriers.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Materials Science, Composites
Fenghua Wang, Mengjie Zhang, Jiaye Li, Zhe Dong, Lin Xu, Shuang Wang, Kan Zhang, Beibei Chen
Summary: A novel hybrid material composed of graphene oxide (GO) and graphitic carbon nitride (g-C3N4) nanosheets was fabricated to improve the tribological performance of poly (phthalazinone ether sulfone ketone) (PPESK). The microstructure of GO/g-C3N4 was studied by varying the mass ratio of GO to g-C3N4, and the ratio of 1:2 (GO/g-C3N4-2) showed the best distribution and active sites. The GO/g-C3N4 hybrid, especially GO/g-C3N4-2, exhibited superior reinforcing and lubricating effects compared to single GO and g-C3N4. Additionally, the addition of 0.1 wt% GO/g-C3N4-2 improved the antifriction and anti-wear performance of PPESK by 77.28% and 96.9%, respectively. The enhancement mechanisms of GO/g-C3N4 on the tribological behaviors of PPESK were clarified by analyzing the surface morphology.
POLYMER COMPOSITES
(2022)
Article
Chemistry, Analytical
Duo Sun, Wei Wang, Nan Zhang, Caixia Liu, Xin Li, Jingran Zhou, Shengping Ruan
Summary: This paper reports a new type of high-performance formaldehyde gas sensor using g-C3N4 nanosheets to modify the surface of In2O3 nanospheres as the sensing material. The sensor showed a 2-fold response increase compared to pure In2O3 when loaded with 12 wt% g-C3N4, with low operating temperature and short response time.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Physical
Vinh Huu Nguyen, Linh Xuan Nong, Oanh T. K. Nguyen, Ai Le Hoang Pham, Taeyoon Lee, Trinh Duy Nguyen
Summary: Photocatalytic technology is a cutting-edge approach for water pollution treatment, and constructing heterojunctions can enhance the performance of photocatalysts. In this study, a three-component g-C3N4/g-C3N4 isotype heterojunction/bismuth-based halide perovskite (g-C3N4-ISO/BHP) composite was fabricated by growing bismuth-based halide perovskite (BHP) onto the surface of g-C3N4/g-C3N4 isotype heterojunction (g-C3N4-ISO) layers using a solvothermal method. The crystalline structure, morphology, chemical composition/states, optical characteristics, and charge-carrier dynamics of the composite were investigated. The g-C3N4-ISO/BHP composite exhibited excellent photocatalytic activity under white LED light, with a degradation percentage of 73.2%, surpassing the mixed-phase g-C3N4-ISO (61.4%) and bare BHP (62.5%). The control of component content improved charge transfer and the S-scheme charge transfer mechanism was verified to function on the g-C3N4-ISO/BHP composite, leading to robust redox ability, effective charge carrier separation, and extended lifetime. This study presents a practical approach for constructing efficient three-component composites for photocatalytic water treatment.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Lili Cao, Songli Qiao, Xue Li, Qiang Li
Summary: In this study, g-C3N4 was prepared by high-temperature thermal polymerization using urea, and a g-C3N4 composite photocatalyst loaded with MeTMC-COP was prepared by hydrothermal method. The photocatalytic hydrogen generation and degradation capabilities of the composite photocatalysts were investigated, and the results showed that at a mass ratio of 3:1, the g-C3N4/MeTMC-COP composite had the lowest fluorescence peak intensity and the highest specific surface area of 40.95 m(2) g(-1). Compared to g-C3N4, the 3:1 g-C3N4/MeTMC-COP exhibited higher photocatalytic activity, with 100% degradation of Rhodamine B and a hydrogen evolution rate of 11.8 mu mol g(-1) h(-1).
FRONTIERS IN CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Qian Zhang, Qing Wang, Shoushuang Huang, Yong Jiang, Zhiwen Chen
Summary: The addition of porous layered g-C3N4 improves the ionic conductivity and lithium ion transference number of the composite polymer electrolyte membrane, leading to a broader electrochemical window and superior electrochemical stability.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Jiaqi Dong, Zhengqi Gong, Yingzhi Chen, Guodong Hao, Wenjie Zhou, Jiaxin Li, Mingqiang Yang, Rongsheng Deng, Lu-Ning Wang
Summary: It is reported a facile preparation of hierarchically porous g-C3N4 with uniform organic microstructure as a soft template. The in situ formed template in thiourea precursor solution effectively modifies the condensation of g-C3N4. The resulting g-C3N4 possesses hierarchical meso/macropores with higher surface area and pore volume, resulting in a 2.4-fold enhancement in photodegrading organic pollutant.
SCIENCE CHINA-MATERIALS
(2023)
Review
Chemistry, Physical
Ting Song, Xiang Yu, Na Tian, Hong-wei Huang
Summary: This review paper systematically discusses the synthesis, structure, and applications of heterojunction photocatalytic composites made of g-C3N4 and BiOX, revealing the factors affecting photocatalytic performances and comparing advantages and disadvantages of different preparation processes. Particularly focuses on the understanding of the structure and characteristics of type II, Z-type, n-n, and p-n heterojunctions and their applications in various fields.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
