Article
Chemistry, Physical
Hongming Zhao, Haitao Fu, Xiaohong Yang, Shixian Xiong, Dezhi Han, Xizhong An
Summary: This study demonstrates a high-performance visible-light-driven photocatalyst for water splitting H-2 production. The MoS2/CdS nanocomposites exhibit excellent H-2 evolution rates and apparent quantum efficiency due to the modified surface of CdS nanorods with MoS2 nanosheets.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Thermodynamics
Jayranjan Maurya, Eskinder Gemechu, Amit Kumar
Summary: Photocatalytic water splitting using solar radiation is a promising H-2 technology and titanium dioxide (TiO2) and carbon nitride (g-C3N4) are commonly used photocatalytic materials for their activity under visible light and abundance. This study develops a techno-economic assessment framework to evaluate the costs of H-2 production using different photocatalysts. The levelized costs of hydrogen (LCOH) range from 4.9 to 7.8 USD per kg of H-2 produced, with capital investment and labor costs being the largest contributors.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Chemistry, Physical
M. Salazar-Villanueva, L. R. Morales-Juarez, O. Flores Sanchez, A. Cruz-Lopez, A. Tovar-Corona, O. Vazquez-Cuchillo
Summary: This report discusses the influence of synthesis methods on the morphology and structure of TiO2, and demonstrates the improved photocatalytic water splitting hydrogen production of the obtained samples through various characterizations. Additionally, DFT calculations confirm that systems with best symmetry are favorable for water adsorption and show a weakening tendency on O - H bonds.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Kaituo Dong, Trung-Anh Le, Yifat Nakibli, Alexander Schleusener, Maria Wachtler, Lilac Amirav
Summary: Solar-driven photocatalytic generation of hydrogen from water is a potential source of clean and renewable fuel. Nanorod photocatalysts were combined with molecular metallocorroles to achieve efficient hydrogen production from water. The system showed high quantum efficiency and successfully handled a large number of holes.
Review
Chemistry, Physical
Shelly Singla, Surbhi Sharma, Soumen Basu, Nagaraj P. Shetti, Tejraj M. Aminabhavi
Summary: This review highlights the environmentally friendly hydrogen production using carbon-based nanomaterials through photochemical and photoelectrochemical processes by water splitting. Various carbon materials like graphene, graphene oxide, carbon nanotubes, graphitic carbon nitride, and fullerenes are discussed for their photocatalytic properties and applications in hydrogen production. The advantages and shortcomings of these materials, along with their production methods and critical discussions, are covered in this article.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Materials Science, Ceramics
Siti Nurul Falaein Moridon, Khuzaimah Arifin, Rozan Mohammad Yunus, Lorna Jeffery Minggu, Mohammad B. Kassim
Summary: This review presents the performance of TiO2/metal chalcogenide heterojunctions for photoelectrochemical water splitting, highlighting the role of metal chalcogenides in TiO2. It also provides recommendations for further research on this topic.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Environmental
Haitham M. El-Bery, Hani Nasser Abdelhamid
Summary: Water splitting via photocatalysis using titanium dioxide holds great potential for hydrogen gas generation. In this study, cobalt oxide embedded nitrogen-doped carbon (Co3O4@C) was synthesized using zeolitic imidazolate framework (ZIF-67) as a sacrificial precursor, which showed significant enhancement in photocatalytic performance and hydrogen generation rates when used as a co-catalyst with TiO2. The Co3O4@C/TiO2 system exhibited recyclability for more than four cycles without significant loss of performance, indicating its potential for further exploration in effective photocatalysis.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Energy & Fuels
R. Suresh, Lalitha Gnanasekaran, Saravanan Rajendran, Matias Soto-Moscoso
Summary: A green and sustainable energy resource, hydrogen (H2), can be generated via photocatalytic splitting of water to meet global energy demand and minimize environmental pollution. Doped photocatalysts have been extensively studied for their application in water splitting. The influence of metal/non-metal dopants on the properties of host semiconductors was deduced, and the water splitting capacity of metal and non-metal ions doped photocatalysts was discussed. Different host photocatalysts, experimental conditions, and strategies for enhancing activity were summarized, along with challenges, future directions, and conclusions.
Article
Chemistry, Physical
Nagaraju Mukurala, Siddhartha Suman, Aditya Bhardwaj, Krishnaiah Mokurala, Sung Hun Jin, Ajay K. Kushwaha
Summary: In this study, a Cu2FeSnS4 layer was decorated on Ni-TiO2 nanorods, leading to a significant increase in photocurrent and more than 3-fold increase in photogenerated charge carrier density. The heterostructured photoanodes exhibited excellent photoelectrochemical properties and high stability, indicating their potential as candidates for solar energy device applications.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Fatih Tezcan, Gulfeza Kardas
Summary: The study examines the catalytic activity of heteroleptic Cu (I) complexes on water splitting, demonstrating that Cu(L1) exhibits a higher photocatalytic response and lower charge transfer resistance compared to Cu(L2).
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Energy & Fuels
Detlef Bahnemann, Peter Robertson, Chuanyi Wang, Wonyong Choi, Helen Daly, Mohtaram Danish, Hugo de Lasa, Salvador Escobedo, Christopher Hardacre, Tae Hwa Jeon, Bupmo Kim, Horst Kisch, Wei Li, Mingce Long, M. Muneer, Nathan Skillen, Jingzheng Zhang
Summary: As nations transition towards low or net zero carbon economies due to global climate change, the need for practical alternative fuels is urgent. Hydrogen gas is considered one of the most desirable substitutes for traditional hydrocarbons, but obtaining "green" hydrogen from low or zero carbon footprint sources presents challenges. Research focuses on practical techniques for producing "green" hydrogen through photocatalytic or photoelectrocatalytic processes. However, the capability of this technology to produce hydrogen at scale has faced significant issues. This road map article explores various aspects of photocatalytic and photoelectrocatalytic hydrogen generation, including processes, materials science, reactor engineering, and biomass reforming applications.
JOURNAL OF PHYSICS-ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Siyuan Zhang, Zewen Sun, Yue Zhou, Wenshu Chen, Qianhui Wu, Jianhua Sun, Leiming Lang
Summary: Ag nanoparticles significantly enhance the photocatalytic activity of self-organized TiO2 nanotube structures. In this study, novel Ag/TiO2 tube-in-tube fibers were prepared using a simple electrospinning technology and calcination process. As a photocatalyst, the composite efficiently catalyzes the photodegradation of the model organic pollutant, rhodamine B, under visible light irradiation, showing superior photocatalytic activity compared to undoped TiO2 tube-in-tube fibers. This enhancement is attributed to the plasmonic characteristics of Ag nanoparticles, which promote light absorption and charge transfer feasibility. The simple, low-cost, and green fabrication route of the composite provides a novel means for preparing similar materials, holding great promise for wider application in the future.
Article
Chemistry, Physical
Qianxiao Zhang, Donghai Chen, Qi Song, Changjian Zhou, Di Li, Dan Tian, Deli Jiang
Summary: Introduction of surface oxygen vacancies and utilizing sacrificial template strategy, unique 2D holey defective TiO2 nanosheets with abundant oxygen vacancies were synthesized, demonstrating excellent hydrogen production activity in water splitting. The nanosheets consist of interconnected TiO2 nanoparticles with mesopores, facilitating the generation of abundant oxygen vacancies for enhanced photocatalytic activity. This work showcases an efficient strategy for improving photocatalytic activity by engineering defects and special 2D holey nanostructures.
SURFACES AND INTERFACES
(2021)
Article
Energy & Fuels
Moushira Saleh, Hani Nasser Abdelhamid, Dina M. Fouad, Haitham M. El-Bery
Summary: The use of light radiation to split water into hydrogen gas has great potential for green hydrogen production. A comparative study was conducted on the photocatalytic activity of TiO2 nanocomposites with two co-catalysts, Pt or Cu nanocrystals, using different synthesis methods. The study found that the deposition technique of the co-catalyst has a significant influence on the efficiency of photocatalysis for hydrogen production.
Article
Chemistry, Physical
Ghasem Pahlevanpour, Hadis Bashiri
Summary: In this research, the hydrogen production from a water-methanol mixture using Au/TiO2 photocatalyst was investigated through kinetic Monte Carlo simulation. The critical steps and optimal conditions were identified by determining the rate constants of reaction steps and the concentration of active sites on the photocatalyst surface.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Environmental
Xinping Zhang, Yuxin Guo, Xiaoyang Liu, Shun-Yu Wu, Ya-Xuan Zhu, Shao-Zhe Wang, Qiu-Yi Duan, Ke-Fei Xu, Zi-Heng Li, Xiao-Yu Zhu, Guang-Yu Pan, Fu-Gen Wu
Summary: This study develops a nanotrigger HCFT for simultaneous photodynamic therapy and light-triggered ferroptosis therapy. The nanotrigger can relieve tumor hypoxia, induce enhanced photodynamic reaction, and facilitate the continuation of Fenton reaction, ultimately leading to lethal ferroptosis in tumor cells.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Olumide Bolarinwa Ayodele, Toyin Daniel Shittu, Olayinka S. Togunwa, Dan Yu, Zhen-Yu Tian
Summary: This study focused on the semihydrogenation of acetylene in an ethylene-rich stream using two alloyed Pt catalysts PtCu and PtCo. The PtCu catalyst showed higher activity and ethylene yield compared to PtCo due to its higher unoccupied Pt d-orbital density. This indicates that alloying Pt with Cu is more promising for industrial relevant SHA catalyst.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Guowei Chen, Wen-Cheng Chen, Yaozu Su, Ruicheng Wang, Jia-Ming Jin, Hui Liang, Bingxue Tan, Dehua Hu, Shaomin Ji, Hao-Li Zhang, Yanping Huo, Yuguang Ma
Summary: This study proposes an intramolecular dual-locking design for organic luminescent materials, achieving high luminescence efficiency and performance for deep-blue organic light-emitting diodes. The material also exhibits unique mechanochromic luminescence behavior and strong fatigue resistance.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Joren van Stee, Gregory Hermans, Jinu Joseph John, Koen Binnemans, Tom Van Gerven
Summary: This work presents a continuous solvent extraction method for the separation of cobalt and nickel in a millifluidic system using Cyphos IL 101 (C101) as the extractant. The optimal conditions for extraction performance and solvent properties were determined by investigating the effects of channel length, flow rate, and temperature. The performance of a developed manifold structure was compared to a single-channel system, and excellent separation results were achieved. The continuous separation process using the manifold structure resulted in high purity cobalt and nickel products.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Yan Xu, Jingai Jiang, Xinyi Lv, Hui Li, Dongliang Yang, Wenjun Wang, Yanling Hu, Longcai Liu, Xiaochen Dong, Yu Cai
Summary: A programmed gas release nanoparticle was developed to address the challenges in treating diabetic infected wounds. It effectively removes drug-resistant pathogens and remodels the wound microenvironment using NO and H2S. The nanoparticle can eliminate bacteria and promote wound healing through antibacterial and anti-inflammatory effects.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Tong Xia, Zhilin Xi, Lianquan Suo, Chen Wang
Summary: This study investigated a highly efficient coal dust suppressant with low initial viscosity and high adhesion-solidification properties. The results demonstrated that the dust suppressant formed a network of multiple hydrogen bonding cross-linking and achieved effective adhesion and solidification of coal dust through various chemical reactions.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jinzhi Cai, Zhenshan Li
Summary: A density functional theory-based rate equation was developed to predict the gas-solid reaction kinetics of CaO carbonation with CO2 in calcium looping. The negative activation energy of CaO carbonation close to equilibrium was accurately predicted through experimental validation.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jianxiong Chen, Fuhao Ren, Ningning Yin, Jie Mao
Summary: This study presents an economically efficient and easily implementable surface modification approach to enhance the high-temperature electrical insulation and energy storage performance of polymer dielectrics. The self-assembly of high-insulation-performance boron nitride nanosheets (BNNS) on the film surface through electrostatic interactions effectively impedes charge injection from electrodes while promoting charge dissipation and heat transfer.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Zijian Li, Zhaohui Yang, Shao Wang, Hongxia Luo, Zhimin Xue, Zhenghui Liu, Tiancheng Mu
Summary: This study reports a strategy for upgrading polyester plastics into value-added chemicals using electrocatalytic methods. By inducing the targeted transfer of *OH species, polyethylene terephthalate was successfully upgraded into potassium diformate with high purity. This work not only develops an excellent electrocatalyst, but also provides guidance for the design of medium entropy metal oxides.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Navneet Singh Shekhawat, Surendra Kumar Patra, Ashok Kumar Patra, Bamaprasad Bag
Summary: This study primarily focuses on developing a sulphur dyeing process at room temperature using bacterial Lysate, which is environmentally friendly, energy and cost effective, and sustainable. The process shows promising improvements in dye uptake and fastness properties.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Dengjia Shen, Hongyang Ma, Madani Khan, Benjamin S. Hsiao
Summary: This study developed cationic PVC nanofibrous membranes with high filtration and adsorption capability for the removal of bacteria and hexavalent chromium ions from wastewater. The membranes demonstrated remarkable performance in terms of filtration efficiency and maximum adsorption capacity. Additionally, modified nanofibrous membranes were produced using recycled materials and showed excellent retention rates in dynamic adsorption processes.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Xiaoyan Wang, Zhikun Wang, Ben Jia, Chunling Li, Shuangqing Sun, Songqing Hu
Summary: Inspired by photosystem II, self-supported Fe-doped NiCoP nanowire arrays modified with carboxylate were constructed to boost industrial-level overall water splitting by employing the concerted proton-coupled electron transfer mechanism. The introduction of Fe and carboxyl ligand led to improved catalytic activity for HER and OER, and NCFCP@NF exhibited long-term durability for overall water splitting.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Pengyao Yu, Ge Yang, Yongming Chai, Lubomira Tosheva, Chunzheng Wang, Heqing Jiang, Chenguang Liu, Hailing Guo
Summary: Thin LTA zeolite membranes were prepared through secondary growth of nano LTA seeds in a highly reactive gel, resulting in membranes with superior permeability and selectivity in gas separation applications.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Baiqin Zhou, Huiping Li, Ziyu Wang, Hui Huang, Yujun Wang, Ruichun Yang, Ranran Huo, Xiaoyan Xu, Ting Zhou, Xiaochen Dong
Summary: The use of machine learning to predict the performance of specific adsorbents in phosphate adsorption shows great promise in saving time and revealing underlying mechanisms. However, the small size of the dataset and insufficient detailed information limits the model training process and the accuracy of results. To address this, the study employs a fuzzing strategy that replaces detailed numeric information with descriptive text messages on the physiochemical properties of adsorbents. This strategy allows the recovery of discarded samples with limited information, leading to accurate prediction of adsorption amount, capacity, and kinetics. The study also finds that phosphate uptake by adsorbents is generally through physisorption, with some involvement of chemisorption. The framework established in this study provides a practical approach for quickly predicting phosphate adsorption performance in urgent scenarios, using easily accessible information.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Paula Alejandra Lamprea Pineda, Joren Bruneel, Kristof Demeestere, Lisa Deraedt, Tex Goetschalckx, Herman Van Langenhove, Christophe Walgraeve
Summary: This study evaluates the use of four esterified fatty acids and three vegetable oils as absorption liquids for hydrophobic VOCs. The experimental results show that isopropyl myristate is the most efficient liquid for absorbing the target VOCs.
CHEMICAL ENGINEERING JOURNAL
(2024)