Article
Engineering, Electrical & Electronic
Leicheng Li, Zhiquan Huang, Zhiping Li, Huan Li, Anming Wang
Summary: In this study, an efficient porous g-C3N4 nanosheet with N defect was successfully fabricated, showing enhanced degradation efficiency towards Eosin-Y and hydrogen evolution performance. The elevated photocatalytic activity was attributed to the synergism of porous nanosheet and N defect, which improved light harvesting and accelerated separation of photo-induced e(-) and h(+).
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Chechia Hu, Wei-Fan Tsai, Wei-Han Wei, Kun-Yi Andrew Lin, Miao-Ting Liu, Keizo Nakagawa
Summary: This study demonstrates the use of hydroxyl-modified/Na-intercalated g-C3N4 as an effective material for the removal of gaseous formaldehyde. The modification significantly increased the HCHO removal efficiency and allowed for at least three cycles of reuse. The modified g-C3N4 showed a removal capacity for HCHO that was twice that of bare g-C3N4, making it a promising material for indoor formaldehyde removal.
Article
Chemistry, Physical
Yao Huo, Jinfeng Zhang, Kai Dai, Changhao Liang
Summary: Amine modification and the formation of the S-scheme heterojunction optimize the photocatalytic CO2 reduction performance of A-PCN/CdSe-DETA composite, achieving a remarkable CO production rate of 25.87 mu mol/(h g) under visible-light irradiation without the need for a sacrificial agent. This work sheds light on the functionalization of S-scheme photocatalysts using amine functional groups, opening up vast opportunities for applications beyond photocatalysis.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Alexander Akulinkin, Konstantin Bolgaru, Anton Reger
Summary: A porous material based on a beta-SiAlON ceramic matrix was synthesized by combustion of ferrosiliconaluminum in a nitrogen atmosphere. The material was used as a substrate for a graphitic carbon nitride (g-C3N4)-based photocatalyst with high stability and activity for murexide oxidation in aqueous solution under visible-light irradiation. The preparation of g-C3N4 supported on the porous ceramic composite shows potential as an advanced technology for fabricating photocatalysts to remove organic pollutants from water.
Article
Engineering, Environmental
Zhe Chen, Yuting Gao, Feng Chen, Hongfei Shi
Summary: This study synthesized a non-noble metal NiSe modified g-C3N4 photocatalyst through an environmentally-friendly hydrothermal method, exhibiting superior hydrogen production ability and significant activity in degrading pollutants.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Sheng-Zhe Zhao, Ran Lu, Yi Yang, Yun Lu, Raul D. Rodriguez, Jin-Ju Chen
Summary: Porous nanotubular g-C3N4/TiO2 photocatalysts were synthesized using electrospinning and vapor deposition. The use of waste foam as a precursor material for TiO2 nanotubes reduced production costs and allowed for resource recovery. The modification of g-C3N4 onto TiO2 nanotubes increased active sites, specific surface area, and improved charge separation. The g-C3N4/TiO2 nanotubes exhibited excellent photocatalytic effects in organic dye degradation and H-2 evolution under simulated sunlight. This study provides a facile synthesis method for preparing multifunctional porous nanotubes from abandoned resources, with implications for environmental remediation and hydrogen generation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Chemical
Wenzhu Liu, Mingxuan Sun, Zhipeng Ding, Qi Zeng, Yongqiang Zheng, Wangbing Sun, Xianglong Meng
Summary: The study demonstrated successful functionalization of g-C3N4 with alkynyl groups via ball milling, resulting in ultrathin wrinkle-like structures with abundant pores. The alkynyl functionalized g-C3N4 showed higher photocatalytic activity for NH3 production and significant enhancements in photodegradation compared to pristine g-C3N4. Various characterization techniques were used to investigate the improved mechanism, and the modification technique has potential for preparing other alkynyl functionalized semiconductors for photocatalytic applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Peng Song, Shaodong Sun, Jie Cui, Xing Zheng, Shuhua Liang
Summary: A novel strategy of synthesizing high-active g-C3N4 through organic dye-reformed melamine precursor has been developed, showing enhanced visible-light-driven photocatalytic degradation activity towards Rhodamine B dye. This approach opens up a new pathway for the development of efficient, economic and environmental-friendly photocatalysts.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Rui Zhang, Xianmin Zhang, Saiwei Liu, Junwei Tong, Fan Kong, Naikun Sun, Xiaoli Han, Yanlin Zhang
Summary: Different morphologies of g-C3N4 samples were prepared by a solid-state reaction, among which the porous g-C3N4 nanosheets showed the highest efficiency in degrading RhB, close to 100% within 30 minutes. The photocatalytic activity and optical response mechanism of these samples were further investigated in detail.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Materials Science, Multidisciplinary
Cunlu Wang, Guangwei Zhang, Han Zhang, Zihao Li, Yeqian Wen
Summary: By preparing porous graphitic carbon nitride nanosheets (PMCNS), the efficiency of photocatalytic degradation and hydrogen production under visible light was significantly enhanced, providing a new approach for reconstructing the structure of graphitic carbon nitride to improve photocatalytic performance.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Engineering, Chemical
Fan Fu, Jian Yang, Hao Xu, Yang Li, Shaobo Cao, Kang Da, Wenting Chen, Ximei Fan
Summary: Doping or constructing heterojunctions with other semiconductors is an effective method to enhance the photocatalytic performance of graphitic carbon nitride (g-C3N4). In this study, thermally condensed K-doped g-C3N4 (KCN) is coupled with BiOCl via a hydrothermal method to form KCN/BOC heterostructures. The optimized KCN1/BOC heterojunction exhibits significantly higher toluene removal efficiency under simulated solar light compared to gC3N4 and BiOCl alone. The enhanced performance of KOH-modified g-C3N4 is attributed to the insertion of K+ ions, which create electron transfer channels for efficient charge separation and rapid electron transfer. Moreover, the Z-scheme structure of the KCN/BOC heterostructure further improves surface charge separation efficiency. This work presents a promising strategy for dual-strategy modification of g-C3N4 to enhance photocatalytic degradation activity.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Engineering, Environmental
Xiaoyan Lian, Wenhua Xue, Shuai Dong, Enzhou Liu, Hui Li, Kangzhen Xu
Summary: Photocatalysis technology is seen as a promising environmental remediation strategy, with the use of Bi2WO6/g-C3N4 heterostructure nanosheets showing high efficiency in degrading ammonium dinitramide. Under optimized conditions, the composite exhibits excellent stability and generates nitrate ions as the main degradation products. The proposed S-scheme heterojunction mechanism helps explain the high REDOX performance of the BWO/CN composite.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Caixia Sun, Jingjie Dai, Hongxia Zhang, Shouying Li, Amin Wang
Summary: In this study, g-C3N4 nanosheets with porous structures were prepared using a simple, template-free method. The pre-treatment of urea with ethanol changed the thermal polymerization process, resulting in the formation of porous nanosheets. The prepared PGN photocatalyst exhibited enhanced visible light photocatalytic efficiency due to its increased surface area and pore volume.
JOURNAL OF MATERIALS SCIENCE
(2021)
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
Engineering, Chemical
Xiaoyan Lian, Suhang Chen, Fangyuan He, Shuai Dong, Enzhou Liu, Hui Li, Kangzhen Xu
Summary: In this study, a novel heterostructure nanosheet was successfully synthesized and used for visible light driven photocatalytic degradation of ammonium dinitramide. The composite material exhibited superior photo catalytic activity due to its larger effective electrochemical surface area, expanded light capture range, and efficient charge transfer ability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Yuru Chen, Qiuhong Liang, Wenjie Liang, Wenlong Li, Yan Liu, Kexin Guo, Bo Yang, Xu Zhao, Mengting Yang
Summary: A recent study found that aromatic DBP fractions are the main contributors to the toxicity of chlorinated drinking water. However, the key drivers of toxicity based on the formation of aliphatic and aromatic DBPs in drinking water have not been comprehensively evaluated. This study explored the occurrence of various aliphatic and aromatic DBPs in drinking water samples from a Chinese megacity. The findings suggest that haloacetonitriles and halonitrophenols are the main toxicity drivers among the measured aliphatic and aromatic DBPs, respectively.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Pengyu Dong, Ting Cheng, Jin-long Zhang, Jinhui Jiang, Lei Zhang, Xinguo Xi, Jinlong Zhang
Summary: This study successfully prepared an organic-inorganic hybrid TpPa-1-COF/ZnIn2S4 heterojunction with well-matched S-scheme interfacial charge-transfer channels. The optimized COF/ZIS-20% exhibited a photocatalytic H2 evolution rate of up to 853 smol g-1 h-1, 6.2 times higher than that of bare TpPa-1-COF under visible light. The presence of interfacial charge transfers and the creation of a tuned built-in electric field were demonstrated through experiments and theoretical calculations, promoting directional S-scheme charge transfer and enhancing photocatalytic H2 evolution.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Lingang Yang, Shumin Shen, Jie Zhu, Yuqing Zhang, Yuting Lin, Jiamin Wang, Feifei Tao, Lingzhi Wang, Jinlong Zhang
Summary: The creation of yolk-shell nanoparticles (YS NPs) with a movable core and periodic mesoporous organosilica (PMO) shell has been simplified using a self-template strategy. A ratiometric Cu2+ fluorescence sensor is created by incorporating a silver nanocore into the YS NP (Ag-PMO-YS), driven by the like dissolves like principle. Due to the coordination of Cu2+ and its ligands and their impact on the emission of fluorescein derivatives, this sensor system demonstrates extraordinary detection sensitivity to Cu2+ (10-7 M), strengthened by the movable Ag nanocore's metal-enhanced fluorescence (MEF) effect.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zehong Xu, Wenhui Yue, Chunchun Li, Lingzhi Wang, Yikai Xu, Ziwei Ye, Jinlong Zhang
Summary: Incorporating plasmonic metal nanomaterials into semiconductor photocatalysts enhances their visible light response through localized surface plasmon resonance (LSPR) mechanisms. However, the presence of surfactants on the surfaces of plasmonic metal nanomaterials hinders their cocatalyst functionalities for photocatalytic hydrogen evolution. This study demonstrates a surfactant-free method to assemble Au nanoparticles (NPs) into Au colloidosomes (AuCSs), which can act as efficient cocatalysts when coupled with CdS to form Au-CdS composite photocatalysts.
Article
Chemistry, Physical
Pengyu Dong, Chengqi Meng, Yan Yan, Beibei Zhang, Wuyou Wang, Xinguo Xi, Jinlong Zhang
Summary: By combining the localized surface plasmon resonance (LSPR) of metallic Ag and the chemically reactive Pt co-catalyst, a Ag-Pt bimetallic composite was coated on exfoliated defective graphitic carbon nitride nanosheets (C3N.NS) for plasmon hot electron-mediated photocatalytic H2 evolution. The (1:2) Ag-Pt/C3N.NS sample showed the highest activity (1.25 mmol g-1 h-1) under visible light irradiation, which was 35.7 and 1.7 times higher than that of Ag/C3NX NS and Pt/C3NX NS, respectively. The apparent quantum efficiency (AQE) of (1:2) Ag-Pt/C3NX NS reached 3.3% at 420 nm. The boosted photocatalytic capacity was attributed to the advantages of the LSPR effect of Ag particles and the Schottky barrier between Pt and C3NX NS, resulting in more electrons participating in the reduction reaction to enhance the photocatalytic H2 evolution performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Review
Chemistry, Physical
Chencheng Dong, Qiuying Yi, Wenzhang Fang, Jinlong Zhang
Summary: This review focuses on the deliberate analysis of reactive oxygen species (ROS) in photodynamic therapy (PDT). It provides specific definitions of ROS and PDT and discusses the fundamental principles and applications of PDT. The strong oxidation ability of radicals and non-radicals in ROS enables them to attack tumor cells and achieve the goal of cancer treatment. Furthermore, the review thoroughly examines the mechanism, photosensitizer (PS) selection, challenges, research gap, and prospects of ROS in cancer treatment.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Xinyu Liu, Ziwei Ye, Qian Xiang, Zehong Xu, Wenhui Yue, Chunchun Li, Yikai Xu, Lingzhi Wang, Xiaoming Cao, Jinlong Zhang
Summary: Surface-enhanced Raman spectroscopy (SERS) is a powerful technique used in various research fields. Semiconductor SERS substrates, as alternatives to plasmonic metal substrates, have attractive attributes. However, they can only enhance the signals of analytes chemically adsorbed on their surface. In this study, we demonstrate the detection of non-adsorbing analytes on ZnO nanoparticles by coating them with ZIF-8 shells, which significantly enhances their electromagnetic enhancing capability and enables the detection of a wider range of non-adsorbing analytes.
Correction
Engineering, Environmental
Qiongfang Zhuo, Jincheng Lu, Junfeng Niu, John C. Crittenden, Gang Yu, Shoushan Wang, Bo Yang, Zefang Chen
ACS ES&T ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Chengxuan He, Shiqun Wu, Qixin Li, Mingyang Li, Jiaying Li, Lingzhi Wang, Jinlong Zhang
Summary: A Ru single-atom-modified hierarchical porous TiO2-SiO2 catalyst was reported for photocatalytic dry reforming of methane (DRM), showing remarkable activity and durability under mild conditions. The catalyst provided matched active sites for CH4 and CO2 adsorption and activation, optimizing the reaction route for inhibiting side reactions and promoting effective C-O coupling.
Review
Energy & Fuels
Miao Kan, Meng Tao, Weijie Zhuang, Shiqun Wu, Ziwei Ye, Jinlong Zhang
Summary: Microplastics are a widespread contaminant that poses threats to the environment and human safety. Upgrading plastic waste to high-value-added fuels is gaining attention due to the high energy storage potential of the C-C and C-H bonds in microplastics. Aqueous photocatalysis has emerged as a promising approach for upgrading microplastics, but a comprehensive understanding of the entire process is needed to enhance efficiency and selectivity.
Article
Engineering, Environmental
Da Liu, Wenqi Zhou, Sihan Tan, Xiaoxue Wang, Yibin Zheng, Huawei Wang, Liang Zhou, Juying Lei, Jinlong Zhang, Yongdi Liu
Summary: This study introduces an innovative approach utilizing MOFs for defect engineering of carbon materials, demonstrating the significance of defects in activating peroxymonosulfate (PMS). The defect-rich carbon-based catalysts synthesized through this method showed excellent potential for practical applications.
ACS ES&T ENGINEERING
(2023)
Article
Engineering, Environmental
Yan Bao, Wenyuan Liu, Jiazhen Cao, Jinlong Zhang, Mingyang Xing
Summary: In this study, a method was developed to create a neutral microenvironment at the interface of ZnCo carbonate hydroxide hydrate (ZnCo-CHH) using amphoteric Zn(OH)(2). The ZnCo-CHH/PMS system demonstrated outstanding performance in phenol degradation and self-neutralized pH within a wide range of 3.0-11.0. The strategy was also effective on commercial CoO, Co3O4, and CoFe2O4, resulting in significant improvements in PMS activation. The research offers a universal approach to establish self-neutralized conditions for cobalt-based catalysts, enhancing PMS activation without altering the oxidative species.
ACS ES&T ENGINEERING
(2023)
Article
Chemistry, Physical
Mingyang Li, Chengxuan He, Xiao Yang, Zhiguo Liu, Jiaying Li, Lingzhi Wang, Shiqun Wu, Jinlong Zhang
Summary: Selective production of methane from CO2 photoreduction is achieved by modifying Co3O4 with Sn single atoms. The Sn single atoms serve as water dissociation sites, accelerating proton production and reducing the energy barrier of the rate-determining step.
Article
Chemistry, Physical
Pengyu Dong, Cunxia Wang, Junjian Tan, Yan Wang, Xinguo Xi, Jinlong Zhang
Summary: A dispersion of black TiO2 photocatalyst was prepared and sprayed onto the concrete's surface, resulting in a black TiO2-based photocatalytic concrete paving eco-block with a higher photocatalytic NO removal ratio compared to a white TiO2-based eco-block. The black TiO2-based eco-block also exhibited enhanced compressive strength and abrasion resistance. In situ DRIFTS was used to investigate the reaction mechanism, showing no harmful by-products were produced during the photocatalytic removal of NO. A CFD model was constructed to assess the real-world applicability of the black TiO2-based photocatalytic eco-blocks in urban street coating. Overall, this research offers new perspectives on creating environmentally friendly photocatalytic products for air pollutant removal using solar light.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Jiaying Li, Chengxuan He, Jinlong Wang, Xiaoyi Gu, Zehan Zhang, Huizi Li, Mingyang Li, Lingzhi Wang, Shiqun Wu, Jinlong Zhang
Summary: The synthesis of g-C3N4 with carbon vacancy and oxygen doping (Vc-OCN) was successfully achieved through a facile method. The incorporation of Vc and oxygen doping led to enhanced optical absorption and charge separation, resulting in improved CO2 reduction efficiency.
Article
Chemistry, Physical
Ming-Yi Chen, Ngoc Thanh Thuy Tran, Ahmed Abubakar Alao, Wen-Dung Hsu
Summary: This study demonstrates the significance of surface Pt atom arrangement for the efficiency of ORR in PEMFCs and reveals the correlation between Pt-Pt average distance and O2 dissociation barrier. Furthermore, the study discovers a robust correlation between the level of the catalyst's d-band center and O2 adsorption energy. High-entropy alloy substrates provide potential for controlling Pt arrangement and O2 dissociation barrier.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Eduardo C. Atayde Jr, Babasaheb M. Matsagar, Yu-Cheng Wang, Kevin C. -W. Wu
Summary: This study presents the first application of an acidic MOF, Sulfated MOF-808, in catalyzing the HAA reactions of furan oligomers for the production of biofuel precursors. The catalyst showed high yield, selectivity, and recyclability, making it versatile for different starting materials.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Maria do Carmo Rangel, Francieli Martins Mayer, Soraia Jesus de Oliveira, Sergio Gustavo Marchetti, Fabricio Luiz Faita, Doris Ruiz, Giovanni Saboia, Mariana Kieling Dagostini, Jonder Morais, Maria do Carmo Martins Alves
Summary: This study developed a new catalyst by investigating the effect of magnesium on the catalytic properties of hematite in ethylbenzene dehydrogenation. The catalyst showed important differences in activity, selectivity, and stability, making it a promising candidate for commercial applications.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Yanjun Li, Qian Wang, Hui Tian, Mingyuan Zhu, Yuanyuan Liu
Summary: A novel strategy using microwave-assisted precipitation was proposed to prepare defective CsH3PMo11VO40 catalyst for the oxidation of methacrolein to methacrylic acid. Microwave treatment accelerates crystallization, increases vanadyl species content, and forms defective Keggin structures, thereby enhancing the oxidation capacity of the catalyst.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Rajeshwari Athavale, Sailee Gardi, Fatima Choudhary, Dayanand Patil, Nandkishor Chandan, Paresh More
Summary: In this study, a novel acidic ionic liquid catalyst was prepared and used for the synthesis of bis-indolyl methane derivatives. The catalyst exhibited short reaction times, easy purification, and reusability.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Masatomo Hattori, Takato Hattori, Masakuni Ozawa
Summary: Cu-added gamma-Al2O3 catalysts were prepared with varying Cu loadings and the effects of copper oxidation states on catalytic activity were investigated. The results showed that the addition of copper increased the catalyst activity, but excessive copper loading decreased catalytic activity. XRD and TEM analysis indicated the formation of a solid solution of copper oxide species on the surface of gamma-Al2O3. XAS and TPR data demonstrated variations in copper oxidation states among the catalysts.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Liwei Fang, Shiyang Niu, Shengsen Wang, Yiqing Lu, Yuanhui Cheng
Summary: In this study, PtNi alloy on nitrogen-doped carbon and SnO2 dual-support was designed to modulate the metal-support interaction, resulting in improved catalytic activity and stability for oxygen reduction reaction. The SnO2/PtNi/NC catalyst exhibited a strongly coupled interface, enhanced electron transfer, and higher half-wave potential compared to PtNi/NC and commercial Pt/C.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Shohei Harada, Duanxing Li, Kenta Iyoki, Masaru Ogura
Summary: This study investigates the catalytic performance of a composite catalyst composed of ZnZrOX and H-zeolite for the hydrogenation of CO2. The deactivation of the composite catalyst is influenced by ion exchange of Zn2+ and/or coke, with their effects differing based on the zeolite structure. Separating the grains of the composite catalyst can prevent deactivation.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Laura Proano, Christopher W. Jones
Summary: In this study, NiGa alloy particles supported on CeO2, ZrO2, and ZrO2-CeO2 solid solutions were prepared and characterized. The nature of the support was found to have a significant influence on the catalyst's activity and selectivity, with the crystalline structure of ZrO2 having the greatest impact. Pure ZrO2 showed the highest methanol selectivity and CO2 conversion at high Zr:Ce ratios. In equimolar and Ce-rich conditions, basic sites and oxygen vacancies were found to be the key parameters affecting methanol production.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Liyan Zhang, Yinze Yang, Leilei Zhou, Fengyu Zhao, Haiyang Cheng
Summary: 1,6-Hexamethylenediamine was successfully synthesized via the reductive amination of 1,6-hexanediol using a Ru/PRL(x)-Al2O3 catalyst. The highly dispersed and anchored Ru species, formed by 1,10-phenanthroline (PRL), played a crucial role in the catalytic reaction. The formation of new acid-base pairs, electron deficient Ru species, and smaller nanoparticles contributed to the improved catalytic performances of the Ru/PRL-Al2O3 catalyst.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Anita Horvath, Miklos Nemeth, Andrea Beck, Gyorgy Safran, Valeria La Parola, Leonarda Francesca Liotta, Gregor Zerjav, Matevz Roskaric, Albin Pintar
Summary: This study investigates the catalytic and structural changes caused by the addition of 0.25 wt% indium in a 3% Ni/CeO2-Al2O3 catalyst prepared by impregnation method. The results show that the addition of indium can decrease the activity of the catalyst, but it improves its stability and reduces coking.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Ankush Kularkar, Vaibhav Vilas Khedekar, Sachin D. Chaudhari, Mudavath Ravi, Sadhana S. Rayalu, Penumaka Nagababu
Summary: Efficiently addressing the challenges of photocatalytic CO2 reduction to CH3OH is crucial. This study developed Zn-BTC MOF and its composites with CaIn2S4, achieving highly efficient and robust photocatalytic CO2 reduction to CH3OH under ambient conditions, using H2O2 as the hydrogen source. Among the composites, ZMCIS4 demonstrated excellent performance with a CH3OH evolution of 49100 μmol/g.cat and a quantum efficiency of approximately 78.41%. The enhanced performance was attributed to the production of nascent hydrogen atoms (H center dot) through the photo-splitting of H2O2 on the ZMCIS surface.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Dan Liu, Yudong Li, Chengyu Wang, Haiyue Yang, Rong Wang, Shujun Li, Xiaohui Yang
Summary: In this study, a self-supporting three-dimensional porous Co3O4 nanobelt array decorated on nickel foam (P-Co3O4 -NBA@NF) electrode with numerous active sites was successfully constructed for the oxidation of 5-Hydroxymethylfurfural (HMF) to 2,5-furan dicarboxylic acid (FDCA). The P-Co3O4 -NBA@NF electrode demonstrated high conversion efficiency, selectivity, and Faraday efficiency, as well as remarkable long-term stability. This research provides a promising electrocatalyst for biomass conversion.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Yimin Li, Enggah Kurniawan, Fumiya Sato, Takayoshi Hara, Yasuhiro Yamada, Satoshi Sato
Summary: In this study, several silica-alumina catalysts modified with Ag were examined for the dehydration of 1,3-butanediol to 1,3-butadiene. Among them, an amorphous silica-alumina catalyst (SAL-3) modified with Ag showed the highest improvement in catalytic activity and stability when operated in H2 flow. The generation of reversible acid sites was found to be the reason behind the enhanced activity and stability of this Ag/SAL-3 catalyst. The effects of various parameters on the catalytic activity of Ag/SAL-3, such as reaction temperature, contact time, Ag content, and carrier gas, were investigated.
APPLIED CATALYSIS A-GENERAL
(2024)
