Article
Chemistry, Physical
Pavel Tkachenko, Victoria Volchek, Anna Kurenkova, Evgeny Gerasimov, Pavel Popovetskiy, Igor Asanov, Irina Yushina, Ekaterina Kozlova, Danila Vasilchenko
Summary: A new protocol for depositing platinum oxide particles onto TiO2 semiconductor using controllable hydrolysis of Pt(IV) hydroxide was developed. The prepared PtOx/TiO2 photocatalysts exhibit good activity for hydrogen production from aqueous ethanol and glucose solutions. The catalysts show high stability and efficiency, with even a low platinum content achieving significant hydrogen production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Review
Chemistry, Multidisciplinary
Kunlei Wang, Ewa Kowalska
Summary: Titania is a widely studied semiconductor photocatalyst with many advantages. However, it has certain limitations, such as charge carriers' recombination and inactivity under visible light. To overcome these limitations, surface modification and doping with various elements/compounds have been explored. Among these modifications, platinum deposition has shown promising results. However, the optimal properties for highly efficient Pt/TiO2 photocatalysts are still unclear due to contradictory findings in the literature.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Physical
Moritz Eder, Carla Courtois, Philip Petzoldt, Sonia Mackewicz, Martin Tschurl, Ueli Heiz
Summary: In the past decade, research on photocatalytic hydrogen evolution from alcohol oxidation on metal-loaded TiO2 has gained attention. This study compares size-selected Ni and Pt clusters as co-catalysts on a TiO2(110) single crystal and explores the size and coverage effects on the catalyst performance during photocatalytic hydrogen evolution.
Article
Chemistry, Physical
Moritz Eder, Carla Courtois, Philip Petzoldt, Sonia Mackewicz, Martin Tschurl, Ueli Heiz
Summary: In the past decade, photocatalytic hydrogen evolution from metal-loaded TiO2 has received significant attention. This study compares size-selected Ni and Pt clusters as co-catalysts on a TiO2(110) single crystal and investigates the size- and coverage-dependent effects on the catalyst performance. Larger clusters and higher coverages of Ni enhance the product formation rate, while Pt co-catalysts exhibit a stable and higher activity, but size-specific effects need to be considered.
Article
Chemistry, Physical
Guigu Xue, Yuemiao Lai, Fangliang Li, Yinuo Li, Peng Liu, Qing Guo
Summary: This study investigates the photodecomposition of 2-propanol on TiO2 surfaces and reveals the reaction behavior under different temperature and surface coverage conditions. The results indicate that higher temperature and lower 2-propanol surface coverage promote the formation of acetone.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Yen-Han Wang, Van-Han Dang, Hung Ji Huang, Jeffrey C. S. Wu
Summary: The effect of magnetic field on heterogenous photocatalysis of Pt/TiO2 for the oxidation of 2-propanol was investigated. A two-level factorial design was applied to examine the impact of dissolved oxygen concentration, temperature, and magnetic flux density. It was found that high magnetic flux density along with high dissolved oxygen concentration significantly enhanced the oxidation of 2-propanol by 22%. The extraordinary magnetic effect was attributed to the singlet-triplet intersystem crossing of radicals and the Lorentz force suppressing the recombination of photogenerated electrons and holes. The presence of paramagnetic oxygen and platinum on TiO2 further reinforced the intersystem crossing, leading to a significant improvement in the photocatalytic oxidation of 2-propanol under a magnetic field.
CATALYSIS COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Attila Kormanyos, Alan Savan, Alfred Ludwig, Florian D. Speck, Karl J. J. Mayrhofer, Serhiy Cherevko
Summary: This study investigates the composition-dependent activity and stability of PtxIr100-x alloy electrocatalysts for the electro-oxidation of isopropanol using a high-throughput electrochemical approach. Results show that samples with lower Ir content exhibit higher activity, with decreasing current densities as the amount of Ir increases. Additionally, the presence of isopropanol significantly increases the stability of PtxIr100-x alloys.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Physical
Moritz Lang, Marcus Klahn, Jennifer Strunk
Summary: The photocatalytic performance of titanium oxide species supported on mesoporous silica (SBA-15) in the selective oxidation of 2-propanol was systematically studied. The formation of monomers and oligomers of supported titanium oxide species on the silica surface increased with loading, resulting in a strong dependence of photocatalytic activity on the titanium content. The longevity and selectivity of the photocatalysts improved with lower degrees of oligomerization, suggesting a potential explanation based on infrared spectroscopy.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Bowen Wang, Anabel E. Lanterna, Juan C. Scaiano
Summary: The study reveals significant differences in the desorption kinetics of probe molecules depending on the chemical nature of the catalysts. Palladium catalysts exhibit faster conversion rates from alkenes to alkanes compared to molybdenum/cobalt catalysts, indicating differences in selectivity between the two.
Article
Materials Science, Ceramics
Petronela Pascariu, Corneliu Cojocaru, Mihaela Homocianu, Petrisor Samoila, Cosmin Romanitan, Djourelov Nikolay
Summary: A series of tin (Sn)-doped titania (TiO2) composites were prepared by electrospinning and calcination. The effect of dopant amounts and calcination temperatures on the composition, morphology, and photocatalytic activity of the composites was evaluated. The ([1.5%]Sn:TiO2) composite sintered at 500°C showed remarkable photocatalytic activity with a removal efficiency of about 100% and a rate constant of 9.685 x 10-2 min-1. Structural investigations were conducted to explain the photocatalytic activity towards water decontamination.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Ranjana Verma, Jay Singh, S. K. Samdarshi, Anchal Srivastava
Summary: A fundamental understanding of the dynamism of charge-transfer characteristic at different phases and pH combinations is essential for the development of highly efficient light harvesting photocatalysts. This study explores the phase modulation at different pH values and its relationship with photocatalytic activities, demonstrating that pH control can be used to manipulate the phase transition and size of TiO2 nanoparticles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Amanda Chen, Wen-Fan Chen, Tina Majidi, Bernadette Pudadera, Armand Atanacio, Madhura Manohar, Leigh R. Sheppard, Rong Liu, Charles Christopher Sorrell, Pramod Koshy
Summary: Uniformly codoped anatase TiO2 thin films with equal Mo and Cr concentrations were fabricated using sol-gel spin coating and ion implantation. Both methods did not result in homogeneous dopant distributions, leading to decreased crystallinities and partial amorphisation. The photocatalytic performances of the films were poor and correlated with the band gap, indicating the effects of different doping methods on performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Applied
Victor Chausse, Jordi Llorca
Summary: A quartz microreactor with 28 microchannels was used to photoproduce hydrogen from liquid water-ethanol using an Au/TiO2 photocatalyst and UV light. The catalytic wall photoreactor configuration outperformed the slurry photoreactor configuration, with hydrogen yields more than three times higher under the same operation conditions.
Article
Chemistry, Physical
Zhaoyi Li, Zhen Sun, Guan Zhang
Summary: Combining enzymatic catalysis and heterogeneous photocatalysis can convert solar energy into hydrogen, which is attractive for sustainable biomass waste utilization and renewable energy development. By developing a low-cost Cu0.5Ni0.5-TiO2 photocatalyst, remarkable hydrogen production performance comparable with Pt-TiO2 under UV light irradiation has been achieved. Finally, the integration of enzymatic catalysis and photocatalysis has been optimized to improve hydrogen production efficiency.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Sinqobile V. L. Mahlaba, Nasseela Hytoolakhan Lal Mahomed, Gerard M. Leteba, Alisa Govender, Eric van Steen
Summary: Platinum-based catalysts can selectively produce formaldehyde through the direct aerobic oxidation of methane in the presence of liquid water. The choice of support material significantly affects the catalyst's activity and product selectivity. Pt/TiO2-Rutile demonstrates high selectivity for formaldehyde formation, while TiO2-P25 leads to the formation of methanol and methoxymethanol. Catalyst deactivation is observed due to the accumulation of polymeric species on the surface.
Article
Chemistry, Physical
Pailin Ngaotrakanwiwat, Piyapol Heawphet, Pramoch Rangsunvigit
Article
Energy & Fuels
Warintip Chanakro, Chutikan Jaikwang, Katipot Inkong, Santi Kulprathipanja, Pramoch Rangsunvigit
Article
Agricultural Engineering
Achiraya Jiraprasertwong, Pattaratorn Karnchanapaisal, Kessara Seneesrisakul, Pramoch Rangsunvigit, Sumaeth Chavadej
Summary: The study found that for treating ethanol wastewater using a two-phase UASB system, the optimal OLR was 32 kg m-3 d-1, resulting in high process activity and effectiveness. Sludge granulation was found to be beneficial for system operation and wastewater treatment efficiency. Additionally, factors such as pH value and lactic acid content were found to play important roles in granulation in the system.
BIOMASS & BIOENERGY
(2021)
Article
Thermodynamics
Kessara Seneesrisakul, Todsapon Jantaruksa, Achiraya Jiraprasertwong, Krittiya Pornmai, Pramoch Rangsunvigit, Sumaeth Chavadej
Summary: The new 3S-ASBR reactor was developed to enhance methane productivity and energy yield by varying the reactor volumetric and recycle ratios. The R1:R2:R3 volumetric ratio of 1:1.5:5 gave the highest COD reduction and yielded 343 mL CH4/g COD applied with an overall energy extraction efficiency of up to 66%. The low pH level (5.5) in R1 was responsible for maintaining adequate amounts of all micronutrients in the system, causing both high microbial concentrations and activities.
Article
Energy & Fuels
Kan Jeenmuang, Chakorn Viriyakul, Katipot Inkong, Hari Prakash Veluswamy, Santi Kulprathipanja, Pramoch Rangsunvigit, Praveen Linga
Summary: Amino acids play an important role in promoting methane hydrate formation with THF, increasing formation rate and altering formation morphology, without affecting the dissociation process.
Article
Energy & Fuels
Chakorn Viriyakul, Kan Jeenmuang, Katipot Inkong, Santi Kulprathipanja, Pramoch Rangsunvigit
Summary: Mixing nonionic surfactants with SDS can reduce foam generation in methane hydrate formation, with the highest EO5 concentration showing the best foam reduction effect, and APG also reducing foam generation.
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Chemical
Katipot Inkong, Le Trung Anh, Viphada Yodpetch, Santi Kulprathipanja, Pramoch Rangsunvigit
Summary: The study found that larger activated carbon particles were more effective in promoting CO2 hydrate formation with shorter induction time and higher formation rate. The addition of 2mM and 4mM sodium dodecyl sulfate (SDS) can increase gas uptake compared to pure activated carbon, while 6mM addition did not show the same effect. The synergistic effect between SDS and activated carbon was discussed.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Energy & Fuels
Katipot Inkong, Viphada Yodpetch, Hari Prakash Veluswamy, Santi Kulprathipanja, Pramoch Rangsunvigit, Praveen Linga
Summary: The morphology of mixed methane-THF hydrate formation was investigated using salt water instead of pure water. The presence of copromoters affected the hydrate formation patterns. Salt water resulted in low hydrate formation kinetics while the presence of SDS significantly enhanced the kinetics. Amino acids accelerated the formation rate of hydrates but had a negligible effect on methane uptake.
Article
Energy & Fuels
Siravich Junthong, Viphada Yodpetch, Katipot Inkong, Santi Kulprathipanja, Pramoch Rangsunvigit
Summary: This study demonstrates that the addition of pyrrolidine during methane hydrate formation can improve the thermodynamic stability of the hydrate, enhance formation, and achieve higher formation rates. Experimental results also show that pyrrolidine can achieve shorter induction times and faster rates of hydrate formation under more relaxed conditions.
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2021)
Article
Energy & Fuels
Katipot Inkong, Viphada Yodpetch, Santi Kulprathipanja, Pramoch Rangsunvigit, Praveen Linga
Summary: The effects of co-promoters on mixed methane-THF hydrate formation were investigated, and it was found that the addition of co-promoters reduced the induction time, minimized the length of the first stage formation, and increased the hydrate formation rate. However, certain co-promoters had adverse effects on the final gas uptake and water to hydrate conversion.
Article
Energy & Fuels
Chuvich Chaovarin, Viphada Yodpetch, Katipot Inkong, Hari Prakash Veluswamy, Santi Kulprathipanja, Praveen Linga, Pramoch Rangsunvigit
Summary: This study investigates the effect of three different amino acids on methane hydrate formation and dissociation. The results show that the presence of amino acids significantly reduces the induction time and increases the rate of hydrate formation. L-methionine is found to be the most effective kinetic promoter.
Article
Chemistry, Multidisciplinary
Viphada Yodpetch, Katipot Inkong, Hari Prakash Veluswamy, Santi Kulprathipanja, Pramoch Rangsunvigit, Praveen Linga
Summary: Carbon capture and storage (CCS) is a promising method for reducing carbon dioxide (CO2) emissions from fossil fuels. Amino acids, such as leucine, methionine, and valine, were used as promoters in CO2 hydrate formation. Different concentrations of amino acids had varying effects on the rate of hydrate formation. The use of amino acids with the hybrid combinatorial reactor (HCR) approach shows promise for CCS applications.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Chanagun Wongburapachart, Phuwadej Pornaroontham, Kyusung Kim, Pramoch Rangsunvigit
Summary: Photocatalysis is an eco-friendly technology that can contribute to achieving the Sustainable Development Goals. However, conventional photocatalysts have limitations such as slow kinetics, limited excitation wavelengths, and environmental restrictions. This study focuses on the development of a photo-chargeable photocatalyst that can operate even in the absence of light, and investigates the effects of synthesis conditions on its photocatalytic properties.
Article
Energy & Fuels
Phuwadej Pornaroontham, Kyusung Kim, Santi Kulprathipanja, Pramoch Rangsunvigit
Summary: In this study, explainable supervised machine learning was used to examine the influence of water-soluble organic molecules on methane hydrate forming systems. With over 800 samples, predictive models were built using CatBoost, which yielded good temperature predictions on unseen data. Feature selection showed that only 7 attributes are necessary for an effective model.
Article
Energy & Fuels
Chuvich Chaovarin, Viphada Yodpetch, Katipot Inkong, Hari Prakash Veluswamy, Santi Kulprathipanja, Praveen Linga, Pramoch Rangsunvigit
Summary: The effect of three different side-chain amino acids on methane hydrate formation and dissociation was investigated, and it was found that the presence of amino acids significantly decreased the induction time and increased the rate of methane hydrate formation.
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)