Article
Materials Science, Multidisciplinary
Mohd Azam Mohd Adnan, Muhammad Nur Iman Amir, Mohd Rashid Y. Yusof Hamid, Mohd Rafie Johan, Nurhidayatullaili Muhd Julkapli
Summary: This study investigates the photodegradation of methyl orange pollutants using a composite material of synthesized titanium dioxide and chitosan supported on a glass substrate. The results show that the composite material with a 2:2 weight ratio of chitosan to titanium dioxide exhibits the highest dye removal activity under acidic conditions.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Environmental Sciences
Gloria Elena de la Huerta-Hernandez, Jose Chavez-Carvayar, Tatiana Rodriguez-Flores, Ivan Castro-Cisneros, Armando Reyes-Montero, Isaias Hernandez-Perez
Summary: The photocatalytic efficiency of semiconductors can be modified by varying the calcination temperature, which affects their morphological, optical, and structural properties. In this study, the effect of calcination temperature on the properties of a AA'BB'O-3 perovskite material was evaluated, showing a clear relationship between the photoactivity and heat treatment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Tayeb Bouarroudj, Lamine Aoudjit, Lerari Djahida, Beddiaf Zaidi, Maamar Ouraghi, Djamila Zioui, Sarah Mahidine, Chander Shekhar, Khaldoun Bachari
Summary: In this study, pure and (Ce, Ag) co-doped ZnO were successfully synthesized via a solvothermal process and characterized using various techniques. The (Ce, Ag) co-doped ZnO showed excellent photocatalytic ability, with a higher degradation rate of tartrazine compared to pure ZnO. Operating parameters were optimized for tartrazine degradation, and the reusability of the catalysts was also confirmed after 6 cycles. The proposed mechanism of photocatalytic activity provides insight into the degradation process.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Kamal Prasad Sapkota, Md Akherul Islam, Md Abu Hanif, Jeasmin Akter, Insup Lee, Jae Ryang Hahn
Summary: The study investigated the photocatalytic performance of heterojunction nanocomposites synthesized from copper(II) oxide nanocrystals and single-walled carbon nanotubes in decomposing methylene blue dye under visible-light irradiation. Results showed that CuOSC-3 exhibited the best photocatalytic activity with 96% degradation of the MB solution in 2 hours. The recycling proficiency of the photocatalysts was also demonstrated, showing that the samples could be utilized for five cycles without noticeable changes in performance or morphology.
Review
Engineering, Electrical & Electronic
Muhammad Abdul Moiz, Abdullah Mumtaz, Muhammad Salman, Hifsa Mazhar, Muhammad Abdul Basit, Syed Wilayat Husain, Muhammad Ramzan
Summary: Contemporary semiconducting ceramics, including zinc oxide, have found applications in various fields due to their wurtzite crystal structure that can accommodate different dopants. Different manufacturing methods give rise to variations in morphology and particle size, affecting optical, photocatalytic, and semiconducting properties. The introduction of dopants can enhance specific properties, such as dye degradation and photocatalysis, of ZnO.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Article
Chemistry, Physical
Qi Yin, Hao Zhou
Summary: Water pollution is a major concern and developing efficient catalysts for photodegrading pollutants is a promising approach. In this study, a novel composite catalyst, NaNbxTa1-xO3/gC3N4, showed high efficiency in degrading the model pollutant methylene blue (MB) under ultraviolet light. The optimal catalyst was NaNb0.75Ta0.25O3/g-C3N4 (1:9), which degraded 99.6% of MB (10 mg/L) after 180 minutes of reaction. The superior photocatalytic activity was attributed to the formation of a Z-scheme heterojunction, which suppressed the recombination of electron-hole pairs and protected high redox potentials simultaneously. Hydroxyl radicals (.OH) and superoxide radicals (.O2-) were identified as the dominant active free radicals in the reaction process.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Chemical
Miaomiao Tang, Rongjie Xu, Yinan Gong, Hao Zhang, Jian He, Pan Wu, Changjun Liu, Wei Jiang
Summary: A photocatalyst gradation strategy is proposed to treat specific pollutants and their mixtures efficiently by combining different photocatalysts. By adjusting the photocatalyst ratio based on big data analysis, variable mixed dye solutions can be rapidly and efficiently photodegraded. This work provides a reference strategy for the treatment of complex variable wastewater.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Environmental Sciences
Sajith N. Veedu, Sheethu Jose, Soumya B. Narendranath, Maliyeckal R. Prathapachandra Kurup, Pradeepan Periyat
Summary: A series of Bi3+-doped ceria nanoparticles were successfully synthesized and showed effective photocatalytic degradation of methylene blue dye under visible light irradiation. Characterization through crystallography, microscopy, and spectroscopy confirmed the effectiveness of doping in the host lattice, along with the mesoporous nature of the nanoparticles. The shift of band gap energy from UV to visible region resulted in the photo degradation of the dye under visible light.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Claudiu Colbea, Petruta Oancea, Mihaela Puiu, Toma Galaon, Adina Raducan
Summary: This study reports the degradation performance of three phthalocyanine-photosensitized TiO2 nanocomposites on waste dyes, showing good decolourization efficiency and thermal stability, with the potential to achieve high organic carbon removal rates. The experiments demonstrate that these sensitized catalysts can effectively degrade recalcitrant azo dyes and may be combined with enzymatic/microbial treatment for total mineralization.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Rodrigo Henriquez, Paula Salazar Nogales, Paula Grez Moreno, Eduardo Munoz Cartagena, Patricio Leyton Bongiorno, Elena Navarrete-Astorga, Enrique A. Dalchiele
Summary: Kesterite Cu2ZnSnS4 (CZTS) nanoparticles were successfully synthesized using a hydrothermal method. Characterization techniques including XRD, Raman spectroscopy, XPS, FE-SEM, EDS, TEM, and UV-vis spectroscopy were employed to study the structural, chemical, morphological, and optical properties. The synthesized CZTS nanoparticles exhibited a nanocrystalline structure with a bandgap of 1.5 eV, making them suitable for solar photocatalytic degradation applications. The photocatalytic activity of CZTS was demonstrated through the degradation of Congo red azo dye under solar simulation light irradiation, achieving 90.2% degradation in just 60 minutes. The prepared CZTS nanoparticles were also reusable for the removal of Congo red dye from aqueous solutions.
Article
Chemistry, Physical
Xueqin Wang, Ying Liu, Helong Xu, Man Dai, Peng Qiao, Wenyi Wang, Yanxiu Liu, Hua Song
Summary: Surface-decorated three-dimensional dendritic fibrous nanosilica (DFNS)/TiO2 materials were synthesized and studied for their potential applications in degrading organic pollutants. The DFNS/TiO2 catalysts exhibited unique fibrous morphologies, high specific surface areas, and excellent catalytic properties, with a first-order degradation rate constant of 0.0229 min(-1).
APPLIED SURFACE SCIENCE
(2022)
Article
Environmental Sciences
Saravanan Murugesan, Vigneshwar Sasibabu, Gautham B. Jegadeesan, Ponnusami Venkatachalam
Summary: This study presents the photocatalytic efficiency of ZnO-CeO2 nanocomposites for the degradation of a model Reactive Black (RB) dye. Addition of CeO2 to ZnO resulted in lower band gap energy and enhanced oxidation of RB dye.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Vrinda S. Punnakkal, E. Anila
Summary: In this study, a simple chemical synthesis method was used to prepare polypyrrole/silver/graphene (Ppy/Ag/Gr) ternary nanocomposites with varying concentrations of graphene. The interaction between polypyrrole, silver, and graphene was studied using XRD, FTIR, and UV-Vis spectroscopies. The results showed that the addition of the optimum concentration of graphene into Ppy/Ag enhanced its photocatalytic property. Furthermore, it was confirmed that the enhancement of photocatalysis in the Ppy/Ag/Gr sample was due to the increased surface area.
SURFACES AND INTERFACES
(2023)
Article
Materials Science, Ceramics
Fenqi Du, Dongmei Yang, Yue Sun, Yang Jiao, Feng Teng, Haibo Fan
Summary: This study synthesized Zn-doped Ga2O3 nanofibers with various concentrations through electrospinning, showing superior photocatalytic performance compared to undoped Ga2O3 nanofibers. Zn doping replaced Ga sites, increasing oxygen vacancy concentration and enhancing photocatalytic properties. The formation of a Ga2O3/ZnGa2O3 hybrid structure with increasing Zn concentration further improved photocatalytic performance through carrier separation and heterojunctions.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Jiawei Yang, Chunli Hu, Yuanzeng Jin, Huanhuan Chen, Wentao Zhu, Xingfu Zhou
Summary: TiO2 mesoporous microspheres were prepared through water heating reflux, and sensitized with CdS nanoparticles to form CdS/TiO2 thin film, showing higher photocurrent density and photodegradation efficiency.
RESEARCH ON CHEMICAL INTERMEDIATES
(2021)
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)