Review
Environmental Sciences
Eliasu Issaka, Jesse Nii-Okai Amu-Darko, Salome Yakubu, Funmilayo Omotoyosi Fapohunda, Nisar Ali, Muhammad Bilal
Summary: The advanced catalytic ozonation process shows significant effectiveness in removing refractory organic compounds and degrading toxic organic pollutants in wastewater. Heterogeneous catalytic ozonation can effectively overcome the disadvantages of homogeneous catalytic ozonation, providing higher catalytic stability and efficiency.
Article
Environmental Sciences
Amin Mojiri, John L. Zhou, Noriatsu Ozaki, Bahareh KarimiDermani, Elham Razmi, Norhafezah Kasmuri
Summary: This study explains the accumulation of different PFAS in water bodies, showing a wide range of PFAS concentrations and varying levels of bioaccumulation in fish and water biota. Recent research has focused on removing PFAS from aqueous solutions, with advanced oxidation processes (AOPs) being a promising technique. Developing novel, efficient, cost-effective, and sustainable AOPs for PFAS degradation in water treatment systems is critical.
Article
Chemistry, Multidisciplinary
Cancan Ling, Xiufan Liu, Hao Li, Xiaobing Wang, Huayu Gu, Kai Wei, Meiqi Li, Yanbiao Shi, Haijie Ben, Guangming Zhan, Chuan Liang, Wenjuan Shen, Yaling Li, Jincai Zhao, Lizhi Zhang
Summary: By constructing a dual Cu-Fe site, selective and efficient activation of H2O2 can be achieved, enabling effective oxidation of various toxic pollutants across a broad pH range. This work has significant implications for environmental control and other applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Chunli Song, Qing Zhan, Fei Liu, Chuan Wang, Hongchao Li, Xuan Wang, Xuefeng Guo, Yingchun Cheng, Wei Sun, Li Wang, Jieshu Qian, Bingcai Pan
Summary: This research reports a method for fabricating Co3O4-CeO2 nanocomposites by changing the loading direction, and discovers that they exhibit unexpectedly high activity and stability in peroxymonosulfate-based Fenton-like reactions. The generated oxygen vacancies serve as new active sites to facilitate the cleavage of peroxide bond, resulting in improved catalytic activity. This provides a new direction for enhancing the catalytic activity of nanocomposite catalysts in various scenarios, including environmental remediation and energy applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Environmental
Emmanuel Mousset, Wei Hao Loh, Wei Shien Lim, Lea Jarry, Zuxin Wang, Olivier Lefebvre
Summary: Advanced oxidation processes have been widely studied for their effectiveness in removing biorefractory pollutants from wastewater. However, there is a lack of suitable methods to compare the performance of different AOPs. This paper proposes a novel criterion, the accumulated oxygen-equivalent chemical-oxidation dose (AOCD), to systematically compare diverse AOPs.
Review
Chemistry, Physical
Wamda Faisal Elmobarak, Bassim H. Hameed, Fares Almomani, Ahmad Zuhairi Abdullah
Summary: The petroleum industry is rapidly growing, leading to increased environmental concerns about wastewater treatment. Advanced oxidation processes (AOP) have been applied for treating petroleum wastewater due to the limitations of conventional treatment methods. Different AOP techniques have shown varying degrees of efficiency in treating petroleum wastewater based on the contaminants present and operating conditions. Ongoing research focuses on further improving the AOP treatment methods for petroleum wastewater.
Review
Environmental Sciences
Enric Brillas
Summary: Ibuprofen is a widely prescribed drug with potential harmful effects on human health, as it can be found in various types of wastewater and drinking water. Conventional treatments are inefficient in removing IBP, leading to the development of advanced oxidation processes to mitigate its impact.
Article
Environmental Sciences
Mengliang Wang, Cong Liu, Hang Shi, Tianyi Long, Chenyong Zhang, Bo Liu
Summary: By coating CuFeO2 with abundant oxygen vacancies to create a novel Fenton-like catalyst, the deactivation issue under neutral pH can be effectively addressed, leading to improved degradation of Rhodamine B. Experimental results demonstrate that oxygen vacancies can enhance electron transfer and facilitate the activation of H2O2 into active radical center •OH.
Article
Chemistry, Physical
Jiangyong Liu, Haiyang Wang, Lixia Wang, Panming Jian, Xiaodong Yan
Summary: This study investigates the phase-dependent reactivity of MnO2 materials and their correlation with the oxidation state of Mn, ion ratio, and oxygen species. DFT studies confirm the easier adsorption and activation of molecular oxygen over delta-MnO2. These findings provide important insights into the catalytic synthesis of high value-added chemicals using MnO2-based materials.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Engineering, Environmental
Quanyuan Chen, Yuan Yao, Zheying Zhao, Juan Zhou, Zhao Chen
Summary: This study investigated the efficacy of pyrite catalyzed Fenton-like oxidation for tertiary treatment of dyeing wastewater and emphasized the importance of its long-term catalytic activity. The results showed that pyrite can effectively catalyze the oxidation of recalcitrant pollutants in suitable conditions, with its heterogeneous catalysis by Fe(II) on the surface being more significant than Homogeneous catalysis by dissolved iron ions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Review
Chemistry, Multidisciplinary
Yanan Shang, Xing Xu, Baoyu Gao, Shaobin Wang, Xiaoguang Duan
Summary: Carbon-based single atom catalysts show high performances and efficiency in environmental catalysis, but there is a lack of comprehensive research on their catalytic sites and mechanisms in advanced oxidation processes, which is necessary for further exploration.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Engineering, Chemical
A. M. Chavez, A. Rey, J. Lopez, P. M. Alvarez, F. J. Beltran
Summary: The synthesis, characterization, stability, and application of the Fe-based MOF MIL-100(Fe) were studied, showing low stability under conditions with phosphates and high oxidant doses plus radiation. High catalytic activity was achieved in some advanced oxidation processes, but concerns about stability due to TMA and iron leaching were raised.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Review
Environmental Sciences
Zonglin Li, Junsen Wang, Jiajun Chang, Bomin Fu, Hongtao Wang
Summary: The enrichment and transport of antibiotics in the environment pose significant challenges to public health worldwide. Traditional sewage treatment plants are unable to completely remove fluoroquinolones (FQs), a widely used class of antibiotics, leading to their accumulation in the environment. Advanced oxidation processes (AOPs) show promise in addressing antibiotic contamination, and photocatalytic ozone is a cost-effective method for degrading FQs. This review summarizes the influencing factors, mechanisms, benefits, and application restrictions of AOPs, and proposes research directions for controlling FQs pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Physical
Xuedong Du, Mehmet A. Oturan, Minghua Zhou, Nacer Belkessa, Pei Su, Jingju Cai, Prime Ement Trellu, Emmanuel Mousset
Summary: The implementation of nanostructured materials in electrochemistry has enhanced conversion yield in fuel cells, electrosynthesis of oxidants, electrolytic treatment for environmental protection, and reduced the detection limit in electroanalysis. Nanostructuration brings about new material properties, such as increased number of active sites and improved conductivity, leading to enhanced heterogeneous catalysis mechanisms at electrode surfaces.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Environmental Sciences
Andressa Juliana Almeida Simoes, Roberto Oliveira Macedo-Junior, Brenda Lohanny Passos Santos, Daniel Pereira Silva, Denise Santos Ruzene
Summary: The study found that the number of scientific publications on advanced oxidation processes based on reactions with ozone and Fenton's reagent has significantly increased in recent years, and these processes have been proven to be very effective for treating produced water. However, the high energy consumption costs of these processes limit their application.
WATER AIR AND SOIL POLLUTION
(2021)
Article
Engineering, Chemical
Yunfei Yu, Xue Yang, Chenchen Zhang, Jie Chen, Wei Lin, Jianqiang Meng
Summary: This study reports an environmentally friendly and simple approach for preparing double-network (DN) ion gel membranes with high strength and excellent gas separation performance. By optimizing crosslinking density, mass ratio, and the type and content of free ionic liquid, the mechanical and gas separation properties of the DN membrane are improved.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Si-qi Jiang, Qiang Gao, Xi-guang Li, Chao-zhu Deng, Jun Qiu, Xiang-nan Zhu
Summary: A dual-strengthening pretreatment method is proposed to remove PVDF more efficiently and enhance the leaching of LiCoO2. Experimental results show that dual-strengthening pretreatment can effectively remove PVDF and significantly improve the leaching efficiency compared to single pretreatment methods.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Zengchi Hu, Xiaoyu Wang, Xiaohui Zhang, Xue Li, Jiangbin Xia
Summary: The rapid fabrication of high-performance composite membranes based on CMPs using simple and low-cost methods is challenging. In this study, three CMPs-based composite membranes were rapidly fabricated with adjustable size using unidirectional diffusion synthesis. The microstructural design enhanced the rejection rates of the membranes and they showed strong hydrolytic resistance, thermal stability, and acid-base resistance. Electrostatic adsorption and the adjustable microstructures significantly varied the repellence of the membranes to different charged molecules.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Farzaneh Rouhani, Matineh Ayedi, Nasser Safari
Summary: Introducing defects into porous metal-organic frameworks is important for improving their adsorption performance. Quasi-MOFs, an underutilized variant of large-scale, fundamentally deficient MOFs, have been found to have substantial amounts of unsaturated metal sites to offset the drawbacks of MOFs. In this study, a quasi-MOF was produced using a water-stable MOF and demonstrated significantly improved phosphate adsorption capability due to the presence of defect sites.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Valentin Reungoat, Morad Chadni, Louis M. M. Mouterde, Fanny Brunissen, Florent Allais, Helene Ducatel, Irina Ioannou
Summary: This study focuses on the recovery of sinapic acid using liquid-liquid extraction assisted by a hollow fiber membrane contactor from an aqueous feed obtained through the hydrolysis of mustard bran. The screening of solvents of different chemical nature showed that all tested solvents had an extraction efficiency of more than 80% for pH < 5. Four solvents were selected for use in the hollow fiber membrane contactor, and the volatile solvents showed higher mass transfer coefficients compared to non-volatile solvents. The extraction efficiency was intensified by increasing the initial concentration of sinapic acid and the feed-to-solvent ratio. CPME was found to have optimal recovery efficiency at a phase ratio of 8:1, yielding 0.9 g of sinapic acid per liter of CPME used.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Takahiro Sakamoto, Takafumi Hanada, Hayate Sato, Mayu Kamisono, Masahiro Goto
Summary: The emergence of the battery society has led to a high demand for battery metals, resulting in a strain on their supply. This study introduces a novel technique using a hydrophobic deep eutectic solvent (DES) for leaching and recovering battery metals from low-grade nickel laterite ores. The DES enables selective leaching and recovery of the metals, offering a promising pathway for the extraction of critical battery metals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Rongrong He, Jiarui Chen, Chunyao Zhang, Dan Lu, Lin Zhang, Tao He
Summary: Researcher has developed a method to quantify the charge density in nanofiltration (NF) membrane separation layer and applied it in NF membranes that can separate Mg2+ and Li+. The results showed that overcompensated amine groups played a major role, and there was a linear relationship between charge density and coating bi-layers or PAH layers.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Zhijian Zhang, Min Chen, Zhe Lin, Zhichao Yang, Yafeng Du, Zhihui Chen, Zhenhao Yang, Kongyin Zhao, Ligang Lin
Summary: Membrane technology plays an important role in molecular/ion separation processes, but faces challenges such as membrane fouling. This study introduces a new ion-crosslinking method to fabricate copper alginate hydrogel membranes with improved mechanical strength and antimicrobial capabilities. The membranes exhibit excellent separation performance and enhanced long-term molecule/ion separation through improved anti-swelling properties. Molecular dynamics simulations and life cycle analysis highlight the pore structure and environmental friendliness of the hydrogel membranes. These findings provide valuable insights for developing sustainable hydrogel membranes with stable performance and high separation efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Dongmei Liu, Aiying Guo, Yanling Qi, Zhixin Ji, Hongjuan Li, Zhiwei Zhang, Xinyue Zhang, Kunze Wu, Aijun Cai
Summary: In this study, a stable magnetic Mg/Mn-layered double oxide-doped biochar composite (MgMnLDO-MBC) was prepared and successfully used for the removal of antibiotics and bacteria from wastewater. The composite exhibited enhanced surface areas, adsorption sites, and free radicals, leading to improved catalytic activity. The effects of different factors on the removal efficiency were evaluated, and the composite showed good reusability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Feng Wang, Zhaoyong Bian, Yaru Zhang, Wenchao Yu, Qiang Zhang, Hui Wang
Summary: In this study, a nanofibrous layered structure of Ff-Ti3C2Tx-Co3O4 was prepared by self-assembling nanofibrous Co3O4 with lamellar fluorine-free MXene (Ff-Ti3C2Tx). The Ff-Ti3C2Tx-Co3O4 exhibited excellent catalytic activity for degradation, resistant to ionic interference, and maintained high removal efficiency of sulfamethoxazole (SMX) in municipal wastewater. The rapid SMX degradation involved fast electron transfer in redox cycles with PMS and the generation of 1O2 via PMS ->center dot O2 -> 1O2. This work provides new insights into antibiotic degradation mechanisms and electron transfer based on PMS activation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Weipeng He, Jiacheng Luo, Yujie Wu, Tianhao Luo, Chen Tang
Summary: This study comparatively evaluated the role of cationic, anionic, and nonionic polyacrylamides (PAMs) in ballasted flocculation of clay suspensions under different aluminum sulfate (AS) coagulant dosages. The selection of PAMs and AS dosage had a significant influence on the size and shear resistance of ballasted floc aggregates.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Lixian Wang, Lizhi Zhao, Didi Si, Zhixin Li, Huiqin An, Hui Ye, Qingping Xin, Hong Li, Yuzhong Zhang
Summary: Metalloporphyrin-based nanozymes integrated with poly (vinylidene fluoride) membrane show high catalytic activity and reusability for the decolorization of Congo Red dye in continuous flow process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Yongfei Ma, Chenyu Zeng, Yongzhen Ding, Jiayi Tang, Ondrej Masek, Zhikang Deng, Rui Mu, Zulin Zhang
Summary: In this study, sludge-derived biochar (SBC) was functionalized with various iron salts to enhance its adsorption ability for sulfamethoxazole (SMX) and magnetic collection performance. Ball milling was further employed to treat the optimal iron salt functionalized SBC (MSBC), resulting in ball milled SBC (BMSBC) with improved adsorption performance for SMX. The dominant driving mechanism for SMX adsorption onto BMSBC was confirmed to be multiple physicochemical forces, including 7C-7C conjugation, pore filling, H-bonding, Fe-O complexation, and electrostatic interactions. BMSBC exhibited favorable adsorption ability for SMX in actual waters and could be easily collected within 1 min due to its magnetic sensitivity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Jinglin Tan, Xiaohui Mao, Wenjihao Hu, Hongbo Zeng
Summary: This study investigates the influence of PDMS chain architectures on surface properties and reveals that PDMS coatings with looped structures exhibit superior hydrophobicity, self-cleaning, and water sliding compared to coatings with linear structures. Additionally, both looped and linear PDMS coated stainless steel mesh/polyester fibers show efficient separation of oil/water mixture.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Wei-Liang Chen, Chih-Chia Cheng, Chien-Hsing Lu, Jem-Kun Chen
Summary: This study designs a novel sandwich-structured capacitor that reduces the absorption time of pollutants using dielectrophoresis force. By coating graphene oxide on polystyrene microspheres as adsorbents and encapsulating them within the capacitor, the adsorption rate is significantly enhanced. Additionally, frequency manipulation allows for the recycling of adsorbents and concentration of dyes, minimizing secondary pollution.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)