Review
Chemistry, Physical
Areen Sherryna, Muhammad Tahir, Walid Nabgan
Summary: Photocatalytic hydrogen production using layered double hydroxide (LDH) as a catalyst has gained attention for its compositional flexibility, controllable morphology, and tunable band gap, leading to efficient solar energy conversion. This article discusses the recent developments in LDH-based nanocomposites for enhancing photo catalytic hydrogen production efficiency, along with strategies for heterojunction engineering and band gap tuning. Future recommendations for the development of LDH-based photocatalysts in the field of photocatalysis are also outlined.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Chemical
Peyman Gholami, Aida Heidari, Alireza Khataee, Mikko Ritala
Summary: Efficient and stable photocatalytic materials are important in energy production and environmental remediation. This study used oxygen and nitrogen plasma-modified graphene to support nitrogen-doped ZnCuCo layered double hydroxide, and found that the combined effect of oxygen functionalities and nitrogen doping significantly improved the photocatalytic activity. The plasma modification enhanced the contact between the materials and modified the Fermi levels, resulting in improved charge separation and prolonged lifetimes of charge carriers. The environmentally-friendly plasma modification of LDH-graphene nanocomposite showed highly-efficient and durable photocatalytic activities for hydrogen generation and pollutant degradation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Ammar Bin Yousaf, Sifani Zavahir, Akif Zeb, Alena Michalcova, Peter Kasak
Summary: This study successfully developed a multi-featured catalyst with high economic and commercial standards, providing a new avenue to meet the environmental and energy demands.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Xiaoyu Xu, Xintie Wang, Jingjing Shao, Longfei Hong, Huiyan Zhang, Sheng Chu
Summary: In this study, a triazine-free polyimide (PI) was synthesized and demonstrated as an effective photocatalyst for hydrogen evolution. The absence of triazine units does not hinder the photocatalytic activity of PI, as the resultant PI photocatalyst exhibited stable hydrogen evolution and photocurrent response. This work expands the chemical library of PI photocatalysts and provides new opportunities for designing efficient polymeric photocatalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Sakshi S. Tak, Omkar Shetye, Omkar Muley, Harsh Jaiswal, Sameena N. Malik
Summary: Wastewater treatment is crucial for environmental protection, and the production of hydrogen from wastewater has been studied using various technologies with different mechanisms and processes.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Materials Science, Multidisciplinary
Xuanang Bian, Shuai Zhang, Yunxuan Zhao, Run Shi, Tierui Zhang
Summary: Photocatalysis is a green technology used to drive chemical reactions under mild conditions, providing solutions to global energy and environmental issues. Layered double hydroxides (LDHs) have gained attention in photocatalysis due to their easy synthesis, low cost, and tunability. Recent research focuses on improving the performance of LDH-based photocatalysts through design strategies for high-performance solar fuel generation.
Article
Agricultural Engineering
Ece Cetingurbuz, Aydin Turkyilmaz
Summary: The main reason for environmental problems is the increasing demand for energy. Hydrogen, as the most crucial alternative energy carrier, can replace fossil fuel mechanisms without side effects. This study investigates the hydrogen storage capacities of pyrolysed tree species activated with nitric acid and lithium chloride. The highest hydrogen adsorption is observed with activated carbon from pine sawdust activated with LiOH at 900 degrees C at approximately 12 bar pressure. Hydrogen adsorption increases with pressure and is higher at cryogenic temperatures.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Chemistry, Physical
Ying Wang, Jiaru Peng, Yangfan Xu, Ruiyang Zhao, Jishu Han, Lei Wang
Summary: This study fabricated CdSe/CuInS2 microflowers with high photocatalytic hydrogen production activity through the construction of p-n heterostructure, demonstrating their broad application prospects in water splitting for hydrogen production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Vasilis Nikolaou, Georgios Charalambidis, Kalliopi Ladomenou, Emmanouil Nikoloudakis, Charalambos Drivas, Ioannis Vamvasakis, Stylianos Panagiotakis, Georgios Landrou, Eleni Agapaki, Christina Stangel, Christian Henkel, Jan Joseph, Gerasimos Armatas, Maria Vasilopoulou, Stella Kennou, Dirk M. Guldi, Athanassios G. Coutsolelos
Summary: In this study, a highly efficient photocatalytic system for H-2 production is developed using porphyrins as photocatalysts. Self-organization of PdTCP and PtTCP into H- and J-aggregates on TiO2 NPs is crucial for H-2 evolution, with J-aggregated PtTCPs showing higher efficiency than H-aggregated PdTCPs. The simultaneous adsorption of PdTCP and PtTCP onto TiO2 NPs results in the most efficient catalytic system, achieving high turnover numbers.
Article
Chemistry, Physical
Jianfang Jing, Jun Yang, Zijian Zhang, Yongfa Zhu
Summary: The ultrathin 2D self-assembled tetrakis (4-carboxyphenyl) zinc porphyrin (SA-ZnTCPP) is successfully fabricated for photocatalytic hydrogen production, showing 85 times increase in H-2 evolution rate compared to metal-free self-assembled tetrakis (4-carboxyphenyl) porphyrin (SA-TCPP). The enhanced photocatalytic activity of SA-ZnTCPP is attributed to the deep conduction band contributed by Zn2+ coordination and the strong built-in electric field that boosts the separation and mobility of photogenerated carriers.
ADVANCED ENERGY MATERIALS
(2021)
Article
Engineering, Environmental
Rossella Greco, Lucia Baxauli-Marin, Filipp Temerov, Matyas Daboczi, Salvador Eslava, Yuran Niu, Alexei Zakharov, Meng Zhang, Taohai Li, Wei Cao
Summary: In this study, a multifunctional photocatalyst was formed by decorating 0D Co3O4 onto 2D Co(OH)2. The synthesized Co3O4@Co(OH)2 composite showed an efficiency of 40% in degrading polystyrene microplastics under 0.495 W white LED illumination, and achieved a H2 evolution reaction of 43 μmol g-1 without sacrificial agents. The energy band diagrams and analysis of radicals involved in the photocatalytic degradation revealed the mechanisms of both processes.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Jiaru Peng, Ying Wang, Jiayu Bai, Dingxuan Ma, Ruiyang Zhao, Jishu Han, Lei Wang
Summary: Photocatalytic water splitting is an efficient approach for producing hydrogen using solar energy. In this study, hollow ZnTiO3 nanospheres were prepared and loaded with ZnS, followed by modification with Zn0.98Cu0.02Se nanocrystals. The ternary photocatalyst exhibited significant improvement in photocatalytic hydrogen evolution performance.
Review
Chemistry, Applied
Sheng Xiong, Rongdi Tang, Daoxin Gong, Yaocheng Deng, Jiangfu Zheng, Ling Li, Zhanpeng Zhou, Lihua Yang, Long Su
Summary: Currently, the world is facing the crucial issue of the energy crisis, and photocatalytic hydrogen (H-2) production is considered a promising solution. The use of noble metal catalysts has limitations due to their scarcity and high cost, necessitating the search for a cheaper, more efficient, and stable catalyst. The emergence of carbon nanostructured materials (CNMs) has provided a solution with their excellent structure and semiconductor performance. This review summarizes the latest progress in CNMs and strategies for enhancing their performance in photocatalytic H-2 production.
CHINESE JOURNAL OF CATALYSIS
(2022)
Review
Biochemistry & Molecular Biology
Angelina V. Zhurenok, Danila B. Vasilchenko, Ekaterina A. Kozlova
Summary: This review provides a comprehensive analysis of studies on graphitic carbon nitride as a photocatalyst for hydrogen production. Various approaches to synthesizing photocatalysts based on g-C3N4 are considered, including methods for modifying and improving the material's structural and photocatalytic properties. The review also discusses the effect of platinum cocatalyst on the activity of the resulting photocatalyst.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Physical
Marcos Gonzalez-Tejero, Joyce G. Villachica-Llamosas, Alba Ruiz-Aguirre, Gerardo Colon
Summary: Cu/TiO2/SrTiO3 hybrid structures were synthesized by impregnation method from Cu/TiO2 and SrTiO3 systems. The composites effectively covered SrTiO3 with Cu/TiO2, leading to an outstanding improvement of photoactivity for hydrogen production from methanol photoreforming. The optimal 30wt% SrTiO3 heterojunction achieved a photoproduction of 81.7 mmol/g H2 after 6 hours, 1.7 times higher than bare Cu/TiO2.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Hala Atallah, Mahmoud ELcheikh Mahmoud, Abdinoor Jelle, Alan Lough, Mohamad Hmadeh
DALTON TRANSACTIONS
(2018)
Article
Chemistry, Multidisciplinary
Daniel Saliba, Manal Ammar, Moustafa Rammal, Mazen Al-Ghoul, Mohamad Hmadeh
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Article
Chemistry, Physical
Abdinoor A. Jelle, Kulbir K. Ghuman, Paul G. O'Brien, Mohamad Hmadeh, Amit Sandhel, Doug D. Perovic, Chandra Veer Singh, Charles A. Mims, Geoffrey A. Ozin
ADVANCED ENERGY MATERIALS
(2018)
Article
Chemistry, Physical
Asmaa Jrad, Belal J. Abu Tarboush, Mohamad Hmadeh, Mohammad Ahmad
APPLIED CATALYSIS A-GENERAL
(2019)
Article
Chemistry, Multidisciplinary
Mahmoud Elcheikh Mahmoud, Hassib Audi, Abdeljalil Assoud, Tarek H. Ghaddar, Mohamad Hmadeh
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Article
Chemistry, Inorganic & Nuclear
Rawan Al Natour, Zeinab Kara Ali, Abdehalil Assoud, Mohamad Hmadeh
INORGANIC CHEMISTRY
(2019)
Article
Chemistry, Multidisciplinary
Rita Zakhia Douaihy, Mazen Al-Ghoul, Mohamad Hmadeh
Article
Engineering, Environmental
Asmaa Jrad, Mohamad Hmadeh, Belal J. Abu Tarboush, Ghadir Awada, Mohammad Ahmad
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Chemistry, Inorganic & Nuclear
Mahmoud Elcheikh Mahmoud, Zeinab Moussa, Thirumurugan Prakasam, Liang Li, Mohamad G. Abiad, Digambara Patra, Mohamad Hmadeh
JOURNAL OF SOLID STATE CHEMISTRY
(2020)
Article
Chemistry, Physical
Razan Issa, Fayrouz Abou Ibrahim, Mazen Al-Ghoul, Mohamad Hmadeh
Summary: In this paper, the authors used the reaction-diffusion framework to successfully synthesize MOF-199 single crystals, and then utilized this method to synthesize multivariate metal-organic frameworks with enhanced properties. By integrating organic linkers with different functional groups into the crystal structure, defects were created, resulting in the synthesis of MTV-MOFs. The effects of the linkers on the morphology, thermal stability, and surface area of the synthesized MTV-MOFs were investigated, demonstrating improved adsorptive capabilities for methylene blue and rhodamine B in aqueous solution.
Article
Engineering, Environmental
Asmaa Jrad, Mohamad Hmadeh, Ghadir Awada, Ranim Chakleh, Mohammad Ahmad
Summary: This study focuses on developing highly defected and functionalized metal-organic framework structures for catalyzing esterification reactions in biofuel production. The multivariate approach and modulation synthesis method lead to structures with catalytic activity higher than those of highly defective fully functionalized structures, bridging the gap between homogeneous and heterogeneous catalysis for efficient biofuel production. The research also suggests a weighted linear regression model to predict catalytic conversion based on specific parameters governing MOF catalyst activity, emphasizing the importance of active sites density over surface area or catalyst loading.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Daniel Saliba, Salah Eddin El Jamal, Antranik Jonderian, Manal Ammar, Mohamad Hmadeh, Mazen Al-Ghoul
Article
Nanoscience & Nanotechnology
Nisrine Assaad, Ghewa Sabeh, Mohamad Hmadeh
ACS APPLIED NANO MATERIALS
(2020)
Article
Nanoscience & Nanotechnology
Belal J. Abu Tarboush, Ali Chouman, Antranik Jonderian, Mohammad Ahmad, Mohamad Hmadeh, Mazen Al-Ghoul
ACS APPLIED NANO MATERIALS
(2018)
Article
Chemistry, Inorganic & Nuclear
Ghandi F. Hassan, Nour El Hoda Saad, Mohamad Hmadeh, Pierre Karam
DALTON TRANSACTIONS
(2018)
