Article
Biotechnology & Applied Microbiology
Jian Feng, Li Wang, Xia Ran, Bo Xiao, Li Lei, Jinming Zhu, Rong Li, Xiaolan Xi, Guangwei Feng
Summary: This study constructed a 3/g-C3N4 heterojunction by incorporating perovskite ErFeO3 nanoparticles into mesoporous g-C3N4 nanosheets, which exhibited optimal adsorption and photocatalytic performance for the removal of low concentration antibiotic contaminants. The ultrathin and porous structure of the nanosheets increased the specific surface area and reaction active sites, while the heterojunction accelerated the separation of charge carriers and inhibited recombination. This research provides an efficient alternative for the treatment of antibiotic wastewater through the synergistic effect of adsorption and photocatalytic degradation.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Chemistry, Applied
Hongshen Zhang, Xiaojun Hu, Yihong Tang, Hongbo Zhang, Kan Li
Summary: P-doped tunnel-shaped carbon nitride was prepared for the first time using phosphonitrilic chloride trimer as P source and SBA-15 as template. Optimization experiments showed that 20% P doping exhibited the best degradation performance for tetracycline hydrochloride under visible light irradiation. The photocatalytic mechanism of P-doped tunnel-shaped carbon nitride was proposed, providing experimental data and theoretical basis for its practical application in polluted wastewater.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Chemistry, Physical
Liangpang Xu, Lejing Li, Zhuofeng Hu, Jimmy C. Yu
Summary: This study presents an EDTA-enhanced ORR system for efficient and non-sacrificial H2O2 synthesis on K-doped g-C3N4 with N-vacancies. The system achieved outstanding H2O2 synthesis efficiency, surpassing the state-of-the-art ORR photocatalysis. The EDTA played a key role in improving the thermodynamics and kinetics of ORR.
JOURNAL OF CATALYSIS
(2023)
Article
Energy & Fuels
Gang Liu, Lei Shi, Lizhu Yao, Lishuang Cui
Summary: This study focuses on enhancing the activity of g-C3N4 in photocatalysis by introducing defect-modified mesoporous structures, showing that DMCN exhibits better catalytic performance compared to CN. The improved photocatalytic activity is attributed to the increase in catalytic sites and the promotion of charge separation efficiency through the introduction of defects.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Tingting Xu, Zhonghui Xia, Hongguan Li, Ping Niu, Shulan Wang, Li Li
Summary: This study reports the construction of a crystalline g-C3N4/g-C3N4-xSx heterostructure to improve the charge separation and transfer in photocatalysts. The prepared g-C3N4/g-C3N4-xSx exhibited remarkable photocatalytic performance and superior piezocatalytic activity. The findings provide new strategies for the design of efficient polymeric photocatalysts and highlight the piezocatalytic studies of g-C3N4.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Physical
Yuchun Ren, Tao Gong, Songlin Tan, Ming Chen, Fei Zhou, Yongjun Lin, Li Yang, Qiong Peng
Summary: The properties and interactions of g-C3N4, Bi3NbO7, and g-C3N4/Bi3NbO7 photocatalysts were revealed through various tests. g-C3N4/Bi3NbO7 has a lower band gap and higher absorption of visible light, as well as higher efficiency in separating photogenerated electron-hole pairs. In the photocatalytic reduction of Cr(VI), g-C3N4/Bi3NbO7 is more effective than pure g-C3N4 and Bi3NbO7.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
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
Biochemistry & Molecular Biology
Xia Ran, Li Wang, Bo Xiao, Li Lei, Jinming Zhu, Zuoji Liu, Xiaolan Xi, Guangwei Feng, Rong Li, Jian Feng
Summary: This study synthesized EuVO4/g-C3N4 heterojunctions with ultrathin and porous structure, which increased specific surface area, reaction active sites, and visible light absorption. The heterostructure exhibited enhanced adsorption and photocatalytic removal efficiency of methylene blue (MB), making it suitable for potential wastewater treatment applications.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Congcong Wei, Wei Zhang, Xinpeng Wang, Aihong Li, Jianping Guo, Bo Liu
Summary: The g-C3N4/TiO2 photocatalysts with mesoporous structure and intimate interfacial connection were synthesized through facile pyrolysis, exhibiting significantly improved photocatalytic activity. The enhancement was primarily attributed to the synergistic effect between large specific surface area, decreased energy band gap, and intimate interface contact.
Article
Chemistry, Physical
Yuanyuan Shao, Jundie Hu, Tingyu Yang, Xiaogang Yang, Jiafu Qu, Qi Xu, Chang Ming Li
Summary: We report a superior carbon-related ZnIn2S4/g-C3N4 catalyst with excellent H2O2 generation and consumption capabilities for efficient sterilization under visible light irradiation. The 2D/2D heterojunction of ZnIn2S4/g-C3N4 exhibits a remarkable H2O2 yield of 4.27 mmol g(-1), which is much higher than that of current catalysts. The in-situ produced H2O2 can be quickly activated to strong oxidizing hydroxyl radicals for sterilization, achieving complete clearance of Escherichia coli (E. coli) within 25 min and 98% killing of Staphylococcus aureus (S. aureus) after 60 min irradiation. The prepared photocatalysts enable rapid production and consumption of H2O2, providing an effective green strategy for sterilization via in-situ generated H2O2.
Article
Chemistry, Physical
Fellipe Magioli Cadan, Caue Ribeiro, Eduardo Bessa Azevedo
Summary: This study optimized the synthesis of g-C3N4 using the Response Surface Methodology and successfully prepared g-C3N4:WO3 heterojunctions, demonstrating good materials homogenization and high photocatalytic activity. A mechanism for the heterostructure photocatalysis was proposed based on theoretical and experimental results.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Environmental
Danila Vasilchenko, Angelina Zhurenok, Andrey Saraev, Evgeny Gerasimov, Svetlana Cherepanova, Sergey Tkachev, Pavel Plusnin, Ekaterina Kozlova
Summary: A highly active Pt/g-C3N4 photocatalyst was successfully prepared by successive combination of thermolysis, chemisorption, and reductive treatment. The prepared material showed remarkable photocatalytic activity in hydrogen evolution reaction, with a high rate of H-2 evolution per platinum atom loaded and among the highest reported net rates to date. The unique structure of the material, with a branchy net of pores, facilitated efficient access of reagents and expulsion of products, leading to the excellent performance. The self-catalyzed hydrogenation of the Pt/g-C3N4 composites played a crucial role in the formation of the noted morphology. The study demonstrated the potential of this approach for large-scale applications in hydrogen production.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Applied
Bo Lin, Mengyang Xia, Baorong Xu, Ben Chong, Zihao Chen, Guidong Yang
Summary: Graphitic carbon nitride (g-C3N4) is a new type of organic conjugated semiconductor with adjustable electronic structure, outstanding thermal endurance, appealing chemical stability, low cost, and environmental friendliness, making it a fascinating material for various photocatalytic applications. However, unmodified bulk g-C3N4 has intrinsic limitations such as poor crystallinity, marginal visible-light harvesting, easy recombination of charge pairs, small surface area, and slow charge migration, resulting in low quantum efficiency of photocatalytic reactions. Manipulating the microstructures of g-C3N4 is an efficient strategy to overcome these shortcomings. Mimicking the structures of creatures in nature to design and construct bio-inspired structures is a promising approach to improve the photocatalytic performance of g-C3N4 and g-C3N4-based systems.
CHINESE JOURNAL OF CATALYSIS
(2022)
Article
Engineering, Environmental
Ting Wu, Zhifeng Liu, Binbin Shao, Qinghua Liang, Qingyun He, Yuan Pan, Xiansheng Zhang, Yang Liu, Jingwen Sun, Shanxi Gong
Summary: The hollow part with macroporous size in hollow tubular g-C3N4 is difficult to function in photochemical reactions. To address this issue, tubular g-C3N4 with mesoporous-rich non-hollow filling was prepared, which increased reactive sites, enhanced visible light response, and facilitated charge separation and transfer.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Bin He, Yuandong Cui, Yu Lei, Wenjin Li, Jian Sun
Summary: Photocatalytic CO2 reduction reaction (CRR) and hydrogen evolution reaction (HER) based on graphitic carbon nitride (g-C3N4) provide promising strategies for producing next-generation fuels, achieving carbon neutrality, and addressing energy and environmental crises. However, the activity of CRR and HER over g-C3N4 needs improvement. This review focuses on the understanding of CRR and HER reaction pathways and the latest advances in improving fuel synthesis through CRR or HER, aiming to enhance the understanding of the structure-activity relationship and develop high-powered photocatalysts beyond g-C3N4.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Environmental
Hongjuan Zhang, Wei Xia, Jianping Ge, Jing Tang
Summary: The optimized catalyst Fe-N-x/HPC-1000, with atomically dispersed Fe-N-x sites, shows excellent oxygen reduction reaction performance. Secondary sulfur-doping enhances the properties of the catalyst, making it more favorable for the ORR.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Shaoxin Song, Yang Liu, Xuejuan Liu, Jianping Ge, Dengteng Ge, Lili Yang
Summary: This study demonstrates a strategy to modulate the brightness of electrically-responsive photonic pixels through surface charge treatment of electrodes, leading to an increase in reflection intensity. Additionally, wide angle-independent photonic colors are achieved via electrophoretic movements of charged particles. This research provides insights for the design of electrically-responsive photonic devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Yuying He, Luyao Liu, Qianqian Fu, Jianping Ge
Summary: A spray coating process has been developed to create highly crystalline photonic crystal modified fabrics, which maintain breathability and softness. The assembly of colloidal PCs inside every yarn of the fabric results in saturated and durable colors, while allowing for good softness and high breathability.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Fang Zeng, Juan Zhang, Run Xu, Rongjun Zhang, Jianping Ge
Summary: A highly dispersed Ni catalyst supported by mesoporous SiO2 nanospheres and promoted by alkaline MgO was synthesized and used as an active and stable catalyst for dry reforming of methane (DRM). The Ni/MgO-mSiO(2) catalyst showed superior performance compared to similar catalysts in literatures, with stable CH4 and CO2 conversions around 82% and 85% during 120 hours of DRM reaction. The promotion effect of MgO on the Ni catalyst was systematically studied and found to enhance the dispersion of active centers, inhibit sintering and deactivation of Ni, and facilitate the cracking of CH4, activation of CO2, and elimination of carbon deposits.
Article
Chemistry, Physical
Fangfang Tang, Wei Xia, Hongjuan Zhang, Lingling Zheng, Yingji Zhao, Jianping Ge, Jing Tang
Summary: This study successfully achieved tunable properties of carbon materials by constructing a carbon hybrid catalyst. The catalyst demonstrates desired features for ORR and exhibits comparable electrocatalytic activity to platinum catalysts. This research provides new insights into the development of highly efficient and low-cost composite electrocatalysts.
Article
Chemistry, Multidisciplinary
Xin Zhang, Yumei Ran, Qianqian Fu, Jianping Ge
Summary: The authors developed a thermochromic SiO2-PC/PEG double layer structure with a responding time of milliseconds for fast thermal printing, which can achieve multicolor printing by tuning the size and type of colloidal particles. High-resolution and grayscale patterns can be printed based on the control of pixel densities.
Article
Chemistry, Physical
Qi Jiang, Dengpeng Lan, Guofeng Zhao, Haitao Xu, Xiaodi Gong, Jichang Liu, Ying Shi, Lidong Zhang, Huimin Fang, Denghui Cheng, Jianping Ge, Zhenliang Xu, Jinku Liu
Summary: In the industry, designing synergetic functional nanocatalysts is a desirable strategy to achieve both high activity and selectivity for CO2 hydrogenation. In this study, bicomponent tandem catalysts ZnZrOx/SAPO-34@UIO-n were fabricated to catalyze CO2 conversion into light olefins. The monodispersed SAPO-34 zeolites were used as the core for the growth of the UIO-n shell, resulting in the membrane-encapsulated nanocrystal SAPO-34@UIO-n. By mixing it with ZnZrOx, the ZnZrOx/SAPO-34@UIO-n catalyst was obtained. The presence of stable UIO-n membrane in the bifunctional catalyst adjusted the conversion of CO2 hydrogenation products from paraffins to olefins.
Article
Materials Science, Multidisciplinary
Jieqiu Wang, Fei Pang, Qianqian Fu, Jianping Ge
Summary: Photonic crystal patterns with angle-dependent colors are a promising anti-counterfeiting material. Delicate PC patterns can be fabricated by silkscreen printing of photo-curable SiO2/monomer PC inks on the substrate, followed by UV irradiation to fix the PC structures. The resulting PC marks show noticeable angle effects, uniform color distribution, and good mechanical and chemical stabilities. Different silk screen stencils are investigated to achieve the best color intensity and printing resolution. As a demonstration of their anti-counterfeiting functions, the PC patterns exhibit color changes and reversible switches under different angles.
SCIENCE CHINA-MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Xiaodong Lu, Xiaohui Wang, Xinyang Li, Liqin Chai, Guojin Liu, Jianping Ge, Jianzhong Shao
Summary: A novel approach to constructing patterned photonic crystals via screen printing was designed and achieved. Patterned PCs with high-saturation iridescent effect were prepared by printing a hydrophilic polymer paste on a hydrophobic fabric and scraping liquid photonic crystals on the fabric. Complex multistructural color patterns were achieved by adjusting the nanosphere size and using multistep printing and scraping.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Dengpeng Lan, Wenting Sheng, Qianqian Fu, Jianping Ge
Summary: A photonic crystal supported blue TiO2 photocatalyst (BTPC) was prepared, showing 5-6 times higher activity and improved CH4 selectivity compared to BT catalysts on quartz plate. The enhanced light absorption and increased surface electron density contributed to the superior catalytic performance, which were influenced by the reflection intensity and wavelength of PC support.
Article
Chemistry, Multidisciplinary
Wenyuan Yu, Yanxuan Zhao, Wenting Sheng, Jianping Ge
Summary: Electrically responsive photonic crystals (ERPC) are promising materials for various applications, but high working voltage limits their use due to poor performance. A method utilizing nanoparticle modification of electrodes is proposed to enhance ERPC performance, lowering working voltage and improving color saturation, stability, and reversibility. Additionally, this method allows for the fabrication of electrically triggered tags with a pattern showing/hiding effect for anti-counterfeiting purposes.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xin Zhang, Tian Yin, Jianping Ge
Summary: In this study, a multilayer thermochromic film was developed for thermal printing, which exhibited fast thermal response and stable performance. It enabled high-resolution and grayscale printing, and improved the user experience.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Guangyang Bao, Wenyuan Yu, Qianqian Fu, Jianping Ge
Summary: This study reports a method of fabricating an electrically responsive photonic crystal (ERPC) in weak polar media. The ERPC shows good performance due to less screening of Coulombic interaction. By using aniline as a weak polar solvent, the ERPC is fabricated without any charge-controlling agent. The resulting SiO2/ANI ERPC exhibits a broad reflection wavelength tuning range (230 nm) and a low working potential (1.4 V), leading to improved stability and reversibility of the electrical tuning.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Huimin Fang, Guofeng Zhao, Denghui Cheng, Jichang Liu, Dengpeng Lan, Qi Jiang, Xuqiang Liu, Jianping Ge, Zhenliang Xu, Haitao Xu
Summary: The bicomponent core-shell catalyst HZSM-5@ZrO2-In2O3, synthesized via the decomposition of In(NO3)(3)/HZSM-5@UIO-66, exhibited high CO2 conversion and CO selectivity in the reverse water gas shift reaction.
MATERIALS CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Physical
Fang Zeng, Juan Zhang, Run Xu, Rongjun Zhang, Jianping Ge
Summary: The synergistic effect of Ni catalyst, MgO promoter, and mSiO(2) support led to improved dispersion of active centers, enhanced metal-support interactions, and promoted the conversion efficiency of CH4 and CO2 in the Ni/MgO-mSiO(2) catalyst for dry reforming of methane.
