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Article
Materials Science, Multidisciplinary
Youmei Li et al.
Summary: In this study, NiO/g-C3N4 heterojunction photocatalysts were prepared and shown to effectively inhibit charge recombination, leading to a significantly improved photocatalytic hydrogen production efficiency. Under solar light irradiation, the 2% NiO/CN composite exhibited the highest H2 generation performance, 140.3 times higher than that of GCN.
Article
Energy & Fuels
Youmei Li et al.
Summary: In this work, Bi2S3/g-C3N4 heterojunction photocatalytic materials were successfully constructed, which exhibited improved H-2 evolution performance under visible light. The rapid transfer of charge pairs between Bi2S3 and g-C3N4 interfaces promoted the photocatalytic H-2 production rate.
Review
Chemistry, Physical
Lizhen Liu et al.
Summary: This article introduces the application and performance advantages of single-atom catalysts in CO2 reduction, including their types, structures, and synthesis methods. Regarding the reaction mechanism of CO2 reduction, the high performance of single-atom catalysts in electrocatalysis, photocatalysis, and thermocatalysis is discussed, and strategies to improve their performance are summarized. Finally, the challenges and prospects of single-atom catalysts in CO2 catalytic conversion are presented.
Article
Chemistry, Physical
Yin Zhou et al.
Summary: The research team has developed a 2D/2D Mo2C/g-C3N4 Van der Waals heterojunction photocatalyst that can efficiently degrade PPCPs, providing a green strategy for typical PPCPs removal.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Engineering, Environmental
Guotai Sun et al.
Summary: A new photocatalyst, tri-arm CdS/ZnS core-shell nanorod, shows significantly enhanced photocatalytic performance with improved quantum efficiency and hydrogen evolution rate. This enhancement is attributed to the win-win situation between the CdS/ZnS heterojunction and the H+ adsorption resulting from DDA molecules.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Lingling Li et al.
Summary: By modifying hexagonal g-C3N4 tubes, an effective charge transfer mode was established, leading to significantly improved photoreduction of CO2 to CO.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Xiang Xie et al.
Summary: The Cu2_xSe/g-C3N4 heterojunction was successfully constructed using a one-step method for photocatalytic H2 evolution from water, with the optimal Cu2_xSe/g-C3N4-10 wt% exhibiting an efficient H2 evolution rate. This could be attributed to its improved light capturing ability and abundant active sites.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Multidisciplinary
Xiang Xia et al.
Summary: The synthesis of B-doped g-C3N4 nanosheets with enhanced photocatalytic performance was achieved in this study. The ultrathin nanosheets obtained from thermal exfoliation provided higher specific surface area and more active sites, while the introduction of B enhanced charge migration and inhibited the recombination of photogenerated carriers. The cyclic experiment indicated high stability of the sample.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Cheng Cheng et al.
Summary: A graphitic carbon nitride material (TSC-550) with high polymerization degree and improved surface property was prepared using a new thiosemicarbazide precursor. TSC-550 exhibited enhanced hydrogen adsorption ability in water solution and excellent photocatalytic H-2 production activity.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Xue Li et al.
Summary: This study presents an exquisitely designed LaVO4/CN heterostructure for efficient photocatalytic hydrogen production and high-value chemical synthesis. By substituting traditional sacrificial agents with biomass furfuryl alcohol, the LaVO4/CN heterojunction achieves significantly increased hydrogen evolution and furfural production rates, providing a new strategy for sustainable energy conversion and value-added chemical production.
Article
Chemistry, Physical
Xinxin Peng et al.
Summary: The design of high-efficiency multifunctional photocatalysts with matched bandgap allows for the full utilization of photoinduced charge carriers in visible light photocatalysis, enabling reactions such as H-2 evolution and BDM oxidation. Through experimental and theoretical studies, it is shown that the optimized PPy@ZIS composite has a significant quantum efficiency for H-2 evolution and BDM valorization, enhancing the utilization efficiency of charge carriers.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Materials Science, Ceramics
Feiyang Rao et al.
Summary: VCN material obtained by heat-treating g-C3N4 in NH3 atmosphere with rich pore structures and carbon vacancies has a higher specific surface area and new active surfaces, which enhances the separation efficiency of photoinduced carriers and shows stronger visible light absorption capacity.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Environmental
Wenhua Xue et al.
Summary: The study found that in NaOH solution, the hole scavenging capability of Cd0.5Zn0.5S is enhanced, which effectively reduces the photocorrosion of the catalyst and increases the reaction rate of water splitting. Furthermore, under high pH conditions, the water oxidation pathway shifts to direct OH- oxidation, promoting the splitting of water.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Junxian Bai et al.
Summary: A hybrid heterojunction of metallic Ti3C2 nanosheets decorated 2D-2D Zn0.7Cd0.3S (ZCS)-Fe2O3 was synthesized to improve photocatalytic hydrogen evolution reaction (HER) rate and stability, achieving an optimized activity of 27.24 mmol g(-1)h(-1) with 20.92% apparent quantum efficiency at 450 nm. This work provides insights for designing efficient S-scheme heterojunction photocatalysts for practical applications.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Xiaohui Ren et al.
Summary: A cost-effective cocatalyst, cobalt phosphide (CoPx), was developed for photocatalytic H-2 evolution, showing excellent conductivity, strong reduction ability, and good thermal and chemical stability. The integration of ultrafine CoPx nanoparticles on CdS, along with Ca2+ dopants, significantly enhanced the separation of photogenerated electron-hole pairs, leading to improved H-2 generation performance. This study highlights the potential for simplified fabrication procedures to enhance cobalt active sites for efficient photocatalytic H-2 generation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Yizhong Zhang et al.
Summary: The unsaturated edge S in the cocatalyst plays a crucial role in the photocatalytic hydrogen evolution process. However, effectively exposing the edge S is still a challenge. This study introduces amorphous nickel sulfide as an efficient cocatalyst to enhance the photocatalytic activity and stability of CdS. The results demonstrate that NiSx accelerates electron migration and provides abundant unsaturated edge S for hydrogen evolution.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Chen Zhang et al.
Summary: The study investigated an advanced photocatalyst based on N-vacancy tubular porous g-C3N4 decorated with atomically dispersed Mo, showing remarkable photocatalytic performance for tetracycline degradation under visible light irradiation. The large specific surface area of the tubular morphology contributes to suppress the agglomeration of Mo atoms, while the N defect induces the formation of specific stable Mo-2 C/2 N configuration.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Qiqi Zhang et al.
Summary: This study achieved efficient H-2 evolution by constructing an S-scheme heterojunction, which accelerates the migration of photogenerated carriers and enhances the redox ability to improve catalytic activity.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Environmental
Yazhou Zhang et al.
Summary: This study successfully synthesized ultrathin and porous nanosheets through a thermal exfoliation method, and introduced N vacancies to enhance photocatalytic performance. The results showed that the ultrathin nanosheets exhibited superior visible-light-driven H2 evolution activity by strengthening the separation of photo-generated carriers through the in-plane electronic structure and providing abundant reaction sites.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Gen Li et al.
Summary: In this article, a universal method for the synthesis of compact heterojunction VS2@C3N4 with S vacancies was developed via in situ supramolecular self-assembly method. The material showed outstanding catalytic activity, stability, and hydrogen production rate. The presence of S vacancies resulted in the formation of a compact heterostructure and reduction of the work function, promoting interfacial carriers transfer and surface properties. The core-shell structure also improved the stability of S vacancies. This work not only provides a universal method for the construction of TMD core-shell structure with vacancies, but also deepens our understanding of carrier separation in the vacancies interface for photocatalysis.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Zhihao Chen et al.
Summary: A novel photocatalyst with 3D hierarchical structure and type II heterojunction was successfully prepared to enhance photocatalytic hydrogen production efficiency under visible light. The improved efficiency was attributed to the unique hollow tubular structure, shortened charge transfer path, and abundant reactive sites provided by ZnIn2S4 nanosheets.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Hongmiao Zhou et al.
Summary: In this study, copper phosphide loaded g-C3N4 catalysts showed superior performance in photocatalytic hydrogen evolution, providing a new strategy for designing efficient visible-light-driven hydrogen evolution photocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Olga Sacco et al.
Summary: This study aimed to determine the structural and optical properties of Eu-doped ZnO powders prepared by supercritical antisolvent precipitation route and correlate them with the photocatalytic activity. The introduction of novel defects by Eu-doping enhanced the hydrophilicity of the samples, while Eu3+ ions led to the quenching of visible light emission in ZnO. The higher photocatalytic activity of Eu-doped ZnO was attributed to the stabilization of photogenerated holes and their higher hydrophilicity due to the generation of defective sites induced by Eu3+ ions.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Haoran Sun et al.
Summary: This study successfully applied high-crystalline/amorphous g-C3N4 S-scheme homojunctions in photocatalytic H2 production in water and seawater, and found the optimal conditions for the highest H2 evolution rates.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Bingxin Yu et al.
Summary: In this study, a new NiS2-C/CdS NSs photocatalyst was fabricated using a two-step process. The photocatalyst exhibited excellent activity for hydrogen production under visible light, with a high apparent quantum efficiency.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Youmei Li et al.
Summary: Bi2O3/BiVO4 heterojunctions with enriched oxygen vacancies were prepared by a hydrothermal method. The constructed heterojunctions facilitate transfer of charge pairs and increase the lifetime of carriers. The existence of oxygen vacancies plays a leading role in the improvement of photocatalytic performance.
CHEMICAL PHYSICS LETTERS
(2022)
Review
Chemistry, Physical
Suleiman M. Abu-Sari et al.
Summary: Energy scarcity is becoming more serious and urgently needs a solution. Diversifying energy sources is the most plausible solution to address the upcoming energy scarcity. This review provides a comprehensive overview of the research on using g-C3N4 as a photocatalyst to produce hydrogen from water under simulated sunlight irradiation in the past decade. The review highlights the properties, synthesis methods, photocatalytic activity, and challenges of g-C3N4, and suggests its potential to produce green H-2 at a competitive price, contributing to global energy demand and climate change mitigation.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Cheng Hu et al.
Summary: In this study, efficient piezocatalytic systems for two-electron water splitting with producing H-2 and H2O2 were developed using Ag single atoms and clusters co-anchored on carbon nitride. Ag single atoms enhanced the in-plane piezoelectric polarization, while Ag clusters promoted the out-of-plane migration of piezoelectrons. Additionally, the system exhibited a larger piezoresistive effect, leading to increased carrier mobility. As a result, the system demonstrated superior H-2 and H2O2 evolution rates compared to previously reported piezocatalysts.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Youmei Li et al.
Summary: Graphite carbon nitride (g-C3N4) has advantages such as a unique two-dimensional structure, low cost, nontoxic properties, suitable bandgap, and favorable stability. However, its photocatalytic efficiency is suboptimal due to low solar absorptivity and fast recombination of charge pairs. In this study, modified g-C3N4 materials with carbon vacancies (CVs) were obtained through calcination in a hydrogen atmosphere, resulting in higher specific surface area and more active sites. The CVs in the N-(C3) bond reduced electron density and narrowed the bandgap of the modified material, leading to improved light response capability. Under the synergy of abundant pore construction and CVs, the photo-excited charge pairs were effectively separated and transferred, resulting in a significantly higher hydrogen generation rate compared to g-C3N4. The study provides a meaningful method to enhance the photocatalytic performance of photocatalysts by constructing abundant CVs.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Materials Science, Multidisciplinary
Tingting Zhang et al.
Summary: This work presents the preparation of BiOBr/g-C3N4 S-scheme heterojunctions and demonstrates their superior photocatalytic activities under visible light exposure. The highest photocatalytic performance is observed in the sample with a 2% molar ratio of BiOBr/g-C3N4. The improved photocatalytic property is attributed to the S-scheme segregation and transfer of interfacial charge pairs, enabling efficient segregation of photogenerated carriers and maintaining the robust redox ability of photo-generated e(-)/h(+) pairs.
Article
Physics, Condensed Matter
Zakaryaa Zarhri et al.
Summary: This paper used first-principles calculations to analyze the optical, structural, and electronic properties of Nb-doped BaSnO3. The results show that Nb doping can improve the electrical conductivity and increase the bandgap, making it a promising transparent conducting oxide.
MICRO AND NANOSTRUCTURES
(2022)
Article
Materials Science, Ceramics
Gokhan Kilic et al.
Summary: This study successfully synthesized zinc-borate glasses with different Eu2O3 concentrations and investigated their optical, physical, and nuclear radiation shielding properties. The addition of Eu2O3 was found to affect the density, molar volume, and optical band gaps of the glasses. The glass with 3% mol Eu2O3 showed superior nuclear shielding competence.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Environmental
Yanli Chen et al.
Summary: S-scheme heterojunctions of S-doped g-C3N4 (SCN) and N-doped MoS2 (NMS) were constructed using a one-step thermal polycondensation method, revealing enhanced NMS purity. The NMS/SCN with an NMS ratio of 19.3 wt% showed the highest photocatalytic activity, with a significantly increased H2 generation rate.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Bin Zhang et al.
Summary: In this study, a Bi2S3/g-C3N4 heterostructure with exceptional photocatalytic activity for H-2 evolution under visible light illumination was successfully synthesized. The hybrid material showed excellent stability and recyclability, with a significant enhancement in performance compared to pure g-C3N4. The results suggest that the direct S-scheme mechanism facilitates the separation and utilization of charge carriers, leading to improved photocatalytic performance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Physical
Jianxin Li et al.
Summary: Highly crystalline g-C3N4 nanosheets were synthesized with a simple self-assembly method, demonstrating improved photocatalytic activity compared to traditional g-C3N4, resulting in a 6-fold enhancement in hydrogen evolution.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Sen Jin et al.
Summary: This study introduces a feasible strategy of activating surface reactivity on semiconductors to enhance PEC performance by cooperatively working with semiconductor photoactivity. By using ionized argon plasma technology on 3D nanoporous BiVO4, surface oxygen vacancies are controllably generated to improve charge separation and transfer efficiency, resulting in a significant increase in photo current density.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Yizhang Wu et al.
Summary: The study demonstrates the significant enhancement of light absorption and superior photocatalytic activity in Zn2+ and K+ synergetic modulated g-C3N4 crystals, achieved through bridging and bonding, leading to efficient hydrogen evolution.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Chemical
Jiayun Liu et al.
Summary: In this study, Eu2O3/Co3O4 nanosheets were successfully synthesized and used to activate PMS for degrading LVX, exhibiting better catalytic performance compared to pure Co3O4. The Eu2O3/Co3O4 nanosheets efficiently removed 97.93% of LVX in just 6 minutes, with singlet oxygen playing a key role in the degradation process. Additionally, Eu2O3/Co3O4 showed good stability and reusability, making them a promising candidate for the rapid and efficient removal of recalcitrant pollutants.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Applied
Xuewen Wang et al.
Summary: The 3D macropore C-vacancy g-C3N4 prepared through a one-step route significantly improves H-2 production and CO2 reduction rates by enhancing light utilization efficiency and increasing the number of surface-active sites.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Engineering, Environmental
Liyuan Duan et al.
Summary: Graphitized carbon nitride photocatalysts were successfully synthesized using desulfurized waste liquid from coking plants. The addition of sulfur-containing compounds during synthesis increased the specific surface area and pore volume, leading to improved efficiency in NOx removal. The incorporation of sulfur widened the band gap of the photocatalyst, enhancing visible light response and inhibiting charge carrier recombination.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Sehar Tasleem et al.
Summary: The synergistic co-modification of Co and La enhanced the photocatalytic H-2 production of g-C3N4 by facilitating efficient charge separation and promoting oxidation reactions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Electrical & Electronic
Hye Ji Jang et al.
Summary: Eu(III) ion dopant in SrTiO3 nanoparticles exhibited unique luminescence properties and was found to impact photocatalytic activities in CO2 reduction, organic pollutant degradation, and oxygen evolution reaction. The doping levels of Eu(III) were shown to influence catalytic performances, with undoped SrTiO3 showing the highest enhancement in current density. Various characterization techniques confirmed the initial doping site of Eu(III) ion and its impact on the Ti(IV) oxidation state. These results demonstrate that Eu(III) dopant could be a valuable tool for understanding local environmental sites and dopant roles in catalytic activities.
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(2021)
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JOURNAL OF HAZARDOUS MATERIALS
(2018)
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APPLIED MATERIALS TODAY
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(2014)
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(2012)
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EARTH-SCIENCE REVIEWS
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