Article
Environmental Sciences
Song Han, Danni Mao, Huijuan Wang, He Guo
Summary: In this study, a collaborative process for treating DMP in water was established by adding rGO-WO3 nanocomposites to a DBD plasma system. The results showed that rGO-WO3 acted as a catalyst for DMP degradation under certain conditions, and could reduce the negative impact of DMP on the environment.
Article
Crystallography
Federico Giuffrida, Lucia Calcagno, Gianni Pezzotti Escobar, Massimo Zimbone
Summary: The photocatalytic properties of TiO2/FeO3 and TiO2/WO3 nanocomposites were investigated for the degradation of methylene blue. The non-conventional Doctor Blade technique was proposed as an easy and inexpensive method for material preparation. The use of solid substrates rather than powders and the high surface area of nanoparticles improved the photodegradation efficiency.
Article
Chemistry, Physical
Wei Zhang, Rong Chen, Xun Zhu, Dingding Ye, Yang Yang, Youxu Yu, Yuxin Liu, Qiang Liao
Summary: A multi-species transport model considering electron/hole transport, organic/hydroxyl ion transport, and photoelectrochemical reaction was developed for one-dimensional TiO2 nanotube array photoanode. The simulated results are in good agreement with experimental data. Increasing organic/hydroxyl ion concentrations and illumination intensity improves the performance of the photoanode, while decreasing the wavelength decreases the performance. Thinner nanotube wall thickness yields better performance, with an optimum nanotube layer thickness for optimum performance.
JOURNAL OF POWER SOURCES
(2023)
Article
Engineering, Environmental
Yuan Deng, Wenjun Yan, Yujing Guo, Qiang Wang, Yingpu Bi, Chuan Dong, Lifang Fan
Summary: A photoelectrochemical (PEC) sensing platform was developed using graphene quantum dots decorated TiO2 nanotube arrays (GQDs-decorated TiO2 NTs) for the detection of di-2-ethylhexyl phthalate (DEHP) with low detection limit, high selectivity, and stability. The platform showed promising results in real environmental samples.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Physical
Chakib Alaoui, Mohamed Karmaoui, Ahmed Bekka, Miroslava Filip Edelmannova, Juan Jesus Gallardo, Javier Navas, Wassila Touati, Imene Kadi Allah, Bruno Figueiredo, Joao Antonio Labrincha, Martin Reli, Kamila Koci, David Maria Tobaldi
Summary: Clean energy and air and water pollution have become significant challenges in today's society. Photocatalysis, an advanced oxidation process that utilizes light to activate a semiconductor, provides a potential solution to address these issues. This study found that incorporating graphene nanoplatelets into the TiO2/WO3 heterojunction significantly improved photocatalytic hydrogen generation.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Qianru Zhao, Shuangyang Chen, Binghua Ren, Sinan Liu, Yongchao Zhang, Xi Luo, Wei Feng, Yan Sun
Summary: Rutile TiO2 microspheres and WO3 nanosheets were synthesized via hydrothermal treatment, and a WO3/TiO2 heterojunction was prepared with different mass ratios using physical mixing. Photocatalytic performance was evaluated using the degradation of Rhodamine B dye under simulated sunlight. The WO3/TiO2 with a mass ratio of 1:5 showed the highest photocatalytic efficiency of 91.5% within 60 minutes. Holes (h(+)) and superoxide radical (center dot O-2(-)) were found to play key roles in the degradation process. The unique type-II WO3/TiO2 heterojunction extended the light absorption range and improved photocatalytic activity.
Article
Chemistry, Applied
Yuting Liang, Zhi Jiang, Wenfeng Shangguan
Summary: This study investigated the photocatalytic reaction behavior of DEHP over surface platinized TiO2, with the oxidation state of platinum found to be crucial in determining the photocatalytic activity. Platinized titania with oxidized Pt species showed higher photocatalytic activity compared to metallic Pt. Photocatalysis coupled with thermal catalysis can enhance the degradation of DEHP, and Pt oxide, particularly PtO, can improve the photocatalytic oxidation efficiency by promoting the separation efficiency of photo generated carriers.
Article
Engineering, Environmental
Michael Sebek, Tim Peppel, Henrik Lund, Igor Medic, Armin Springer, Pawel Mazierski, Adriana Zaleska-Medynska, Jennifer Strunk, Norbert Steinfeldt
Summary: Ordered titanium dioxide nanotube arrays fabricated via electrochemical route require a subsequent crystallization step for their amorphous nature. The morphology of crystallized titania under different gas atmospheres was affected, with better preservation of tube structure and enhanced photocatalytic activity observed when annealed in a water vapor/gas stream.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Qi Wang, Wenming Zhang, Xiaoru Hu, Limei Xu, Guodong Chen, Xiaochen Li
Summary: A novel hollow-sphere structure of WO3/TiO2 heterojunction was prepared by a combination of hydrothermal and calcination method. The heterojunction showed improved photocatalytic performance in degrading dye and micro-organic pollutant, with TiO2 acting as a photo-generated hole acceptor to enhance photocatalytic efficiency. This makes it a promising candidate for wastewater treatment.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Zhenzi Li, Decai Yang, Hongqi Chu, Liping Guo, Tao Chen, Yifan Mu, Xiangyi He, Xueyan Zhong, Baoxia Huang, Shiyu Zhang, Yue Gao, Yuxiu Wei, Shijie Wang, Wei Zhou
Summary: Interface engineering is an efficient strategy to improve photocatalytic performance. In this study, reduced graphene oxide/mesoporous titanium dioxide nanotube heterojunction assemblies (rGO/TiO2) were fabricated via a hydrothermal method. The heterojunction interface formed between rGO and TiO2 nanotubes acts as efficient charge transfer channels, which leads to enhanced photocatalytic performance. The rGO/TiO2 heterojunction assemblies exhibit extended photoresponse to visible light and a significantly higher photocatalytic hydrogen production rate compared to TiO2 nanotubes alone. This enhancement is attributed to effective charge transfer channels, spatial charge separation, and the electron acceptor properties of rGO, as well as the large surface area and sufficient surface active sites provided by the two-dimensional mesoporous nanosheets structure. This heterojunction assembly holds potential applications in energy fields.
Article
Materials Science, Ceramics
Marcela Sepulveda, Ivan Saldan, Alijani Mahnaz, Veronika Cicmancova, Jan Michalicka, Ludek Hromadko, Roman Bulanek, Hanna Sopha, Jan M. Macak
Summary: For the first time, this study investigated the influence of annealing temperature, crystallinity, and tubular morphology on the photocatalytic decomposition of model organic dye using magnetically guidable anodic TiO2 nanotubes in the form of single tube powders. The powders were prepared from anodic TiO2 nanotube layers grown on Ti by etching, detachment, and annealing in a wide range of temperatures. The best photocatalytic performance was achieved at annealing temperatures of 600 and 700 degrees C for TiO2 ST-NT and TiO2 ST-NT@Fe3O4NPs powders, respectively. The synergistic effects of annealing, crystallite size, and specific surface area enhanced the photocatalytic activity of the powders under UV light.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Min Cheng, Shuxia Bai, Yanze Xia, Xun Zhu, Rong Chen, Qiang Liao
Summary: The composite photocatalyst of CdS/ZnS quantum dots sensitized TiO2 nanotube array exhibited high performance for photocatalytic conversion of CO2 to methanol under visible light, with the product yield varying with different CO2 flow rates and light intensities.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
I. V. Lukiyanchuk, M. S. Vasilyeva, N. I. Steblevskaya, M. V. Belobeletskaya, A. Yu. Ustinov, V. V. Tkachev, Yu. B. Budnikova, A. A. Rybalka, K. A. Sergeeva
Summary: Titanium-supported TiO2-WO3-Eu2(WO4)3 film heterostructures were prepared by combining plasma electrolytic oxidation (PEO) and extraction pyrolytic (EP) deposition methods. Annealing at 700 and 800 degrees C transformed the composition into crystallized Eu2(WO4)3 and WO3, while PEO coating changed from anatase to rutile. SEM images revealed the presence of WO3 microcrystals and elongated chains of molten formations attributed to Eu2(WO4)3. XPS analysis confirmed the presence of Eu3+, W6+, W5+, and W4+ in the subsurface layers of the composites. The resulting composites exhibited luminescence in the red region with a maximum wavelength of approximately 620 nm, as evaluated from the luminescence excitation spectra and luminescence spectra at 300 K. Additionally, all coatings showed photocatalytic activity in the degradation of indigo carmine under UV irradiation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Energy & Fuels
Likun Wang, Yong Liu, Gaorong Han, Hongli Zhao
Summary: In this study, porous three-dimensional electrochromic films composed of WO3·H2O, WO3, and TiO2 were controllably synthesized by a facile hydrothermal technique. The resulting films exhibited impressive dual-band electrochromic performance with high optical modulation and fast switching speed.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
Article
Engineering, Environmental
Zun Man, Yang Meng, Xiaochang Lin, Xiaorong Dai, Leiping Wang, Dezhao Liu
Summary: The photocatalytic activity of titanium dioxide (TiO2) can be greatly improved by coupling with UiO-66 to purify odor pollutants containing reduced sulfur compounds (RSCs). UiO-66@TiO2 nanocomposites with different blending ratios were synthesized, and the U1T3 composites showed the highest photocatalytic activity compared to pristine UiO-66 and TiO2. The photocatalytic activity was found to be enhanced with increased relative humidity up to 60%, but excessive water at 90% relative humidity weakened the photocatalytic effects. UiO-66@TiO2 nanocomposites with enhanced photocatalytic performance could promote the practical applications of MOF-based photocatalysts for the degradation of odor pollutants.
CHEMICAL ENGINEERING JOURNAL
(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)