Article
Chemistry, Analytical
Jiaxi Hu, Hongjie Song, Cheng Chen, Lichun Zhang, Mingxia Sun, Yi Lv
Summary: Cataluminescence has garnered attention in the field of environmental monitoring and clinical diagnosis. In this study, a Z-scheme heterojunction Ag3PO4/Ag/Bi4Ti3O12 gas-sensing system was constructed for efficient detection of H2S. The unique electron transport path and LSPR effect of Ag nanoparticles enabled the generation of photoinduced electron-hole pairs on the catalyst surface, which reduced recombination under thermal conditions. The system demonstrated a response three times higher than traditional systems and a detection limit of 0.0065 μg mL-1.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Jiaxi Hu, Hongjie Song, Cheng Chen, Lichun Zhang, Mingxia Sun, Yi Lv
Summary: Cataluminescence has gained attention in environmental monitoring and clinical diagnosis. This research constructs an advanced photoinduced thermocatalytic chemiluminescence (PI-TC-CL) gas-sensing system for efficient detection of H2S. The study investigates the gas-sensing mechanism and provides insights into engineering efficient catalysts and innovative sensor systems.
ANALYTICAL CHEMISTRY
(2022)
Article
Engineering, Environmental
Jiangwen Bai, Jinmeng Xiang, Changheng Chen, Chongfeng Guo
Summary: Polarizations within ferroelectric or pizeoelectric materials promote interior photogenerated carriers separation, improving photocatalytic activity. However, pristine ferroelectric or pizeoelectric semiconductors are limited by insufficient polarization and spectral absorption. In this study, Bi4Ti3-2nCrnNbnO12/x-g-C3N4 (BTCNO-n/x-CN) heterojunctions were prepared by loading ultrathin g-C3N4 on ferroelectric BTCNO synthesized with co-doping of Cr3+-Nb5+ pairs. The doping not only enhances the piezoelectric performance of the heterojunctions but also promotes spectral absorption, leading to improved photocatalytic performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Hua Jin, Jun Dong, Xiaoshu Qu
Summary: The novel Ag3PO4/Fe3O4/MP photocatalyst shows enhanced catalytic performance and recyclability during the degradation of organic pollutants, and can be easily separated with the help of a magnetic field.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Spectroscopy
Seyyedeh Atefeh Mirsalari, Alireza Nezamzadeh-Ejhieh, Ahmad Reza Massah
Summary: Due to the widespread use of Azo dyes, discharging these industrial effluents into the environment has caused severe pollution in water supplies. Therefore, developing novel binary catalysts to reduce the pollution extent before discharge is an important issue in environmental chemistry. In this study, a binary CdS/Ag3PO4 catalyst was constructed and its enhanced photocatalytic activity against methylene blue was proven. The results suggested that the Z-scheme mechanism played a major role in the degradation of methylene blue.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Environmental Sciences
Xiuxiu Zhang, Guiyun Yi, Peng Li, Xiaomeng Zheng, Xuhang Shen, Kunlei Ning, Lunjian Chen, Chuanxiang Zhang, Yulong Zhang, Qi Sun
Summary: The research fabricated novel Ag3PO4/g-C3N4-x (APO/CNx) composites with a Z-scheme structure, which exhibited excellent photocatalytic degradation of B naphthol. Experimental results showed that the degradation rate of B naphthol by APO/CNx composites was 3.66 times higher than pure g-C3N4, indicating superior photocatalytic performance.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Chunyan Du, Jiahao Song, Shiyang Tan, Lu Yang, Guanlong Yu, Hong Chen, Lu Zhou, Zhuo Zhang, Yin Zhang, Yihai Su, Xiaofeng Wen, Shitao Wang
Summary: This study successfully enhanced the photocatalytic activity by preparing ZnO/Ag/Ag3PO4 composite photocatalyst, showing significant improvement in the efficiency and stability of ciprofloxacin degradation. The composite material exhibited a higher specific surface area and broader visible light absorption range, which enhanced the efficiency of electron-hole pair separation.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Inorganic & Nuclear
Jie Chen, Haitao Yu, Ying Xie, Zhenzi Li, Wei Zhou
Summary: To enhance the photocatalytic performance of semiconductor catalysts, a new Z-scheme heterojunction was fabricated using Cd0.3Zn0.7S twin crystal and narrow band gap semiconductor Ag3PO4. The resulting Cd0.3Zn0.7S/1%Ag3PO4 photocatalyst exhibited excellent photocatalytic hydrogen production capability. This performance was attributed to the defective twin crystal structure of Cd0.3Zn0.7S and the well-matched Z-scheme interface between Cd0.3Zn0.7S and Ag3PO4, which promoted charge separation and prolonged carrier lifetime.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
Pengfei Zhu, Dan Luo, Ming Duan, Leiyan Feng, Shasha Zhang, Mei Liu
Summary: A novel magnetic CoFe2O4/g-C3N4/Bi4Ti3O12 composite photocatalyst with high activity and recyclability has been prepared for the degradation of malachite green dye in wastewater. The enhanced activity is attributed to the formation of heterojunction, promoting the separation efficiency of photogenerated electron-hole pairs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Kai Zhao, Yalan Feng, Zisheng Zhang, Hong Li, Xin Gao, Shuanglong Lin
Summary: Enhancing spatial charge separation is an efficient strategy for improving photocatalytic performance. In this study, a ternary GO/MoS2/Ag3PO4 Z-scheme heterostructure photocatalytic system was proposed to promote spatial charge separation at the surface and interface. The ternary photocatalyst exhibited enlarged surface area and improved N-2 photo-fixation efficiency under visible light irradiation, thanks to the decent properties of GO. The synergistic effect of electron transportation on GO and the efficient separation of electron-hole pairs on the heterojunction enabled the transportation and separation of photo-generated charges, leading to better harvest and utilization of light illumination.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Engineering, Environmental
Xue Ma, Hefa Cheng
Summary: The {111} facet of Ag3PO4 exhibited the highest surface activity and photocatalytic performance, leading to significant improvement in H2O2 production efficiency for the Z-scheme Ag/ZnFe2O4-Ag-Ag3PO4 composites. Introduction of Ag as a conductive channel and co-catalyst effectively inhibited the recombination of photogenerated e- and h+, promoting the production of H2O2. Insights from this work could guide the design of highly active composite photocatalysts through crystal facet engineering.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Juan Wang, Yuxing Shi, Haoran Sun, Weilong Shi, Feng Guo
Summary: This study successfully prepared an S-scheme heterojunction photocatalyst with a nanosheets-on-nanosheets structure and achieved efficient photocatalytic hydrogen production under visible light. The optimal proportion of the heterojunction photocatalyst exhibited remarkably high hydrogen production efficiency, attributed to the increased reactive active sites and the formation of the S-scheme heterojunction, promoting the transfer of photogenerated electron-hole pairs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Shouchun Ma, Yang Yang, Jiaqi Li, Yuqing Mei, Yufeng Zhu, Jie Wu, Li Liu, Tongjie Yao, Qingfeng Yang
Summary: By constructing a Z-scheme Fe-2(MoO4)(3)/Ag/Ag3PO4 heterojunction, the issues of photocorrosion and quenching effect by in-situ generated H2O2 in Ag3PO4-based photocatalysts have been addressed, leading to improved degradation rate and stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Environmental
Yun Zhong, Jie Shi, Kexin Li, Huiqin Guo, Liushui Yan, Zhenxing Zeng
Summary: The use of silicotungstic acid as a charge transfer mediator improves the charge separation and enhances the photocatalytic activity of the g-C3N4/H4SiW12O40/Ag3PO4 photocatalyst, making it effective for the degradation of organic pollutants.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Chemistry, Physical
Chentao Hou, Yijie Li, Miaomiao Niu, Yi Liu, Xianghui Kong, Mingyuan Zhang, Liping Wang
Summary: In this study, an all-solid-state Z-scheme heterojunction photocatalyst was constructed for the first time using the hydrothermal method. The photocatalytic performance of the photocatalyst for antibiotic degradation was evaluated, and the results showed high efficiency and repeatability. The study provides important insights into the structural design of Z-scheme heterojunctions and has implications for other catalytic systems.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Green & Sustainable Science & Technology
Xinxin Meng, Zhun Liu, Xubin Qian, Shaoyu Tang, Cheng Fang, Junfeng Niu, Lei Xu
Summary: The effect of low-frequency ultrasound on the degradation of anticancer drug irinotecan using reactive electrochemical membrane was investigated. Higher degradation efficiency, mineralization efficiency, and lower energy consumption were observed in the ultrasound-assisted system. The enhanced degradation and mineralization can be attributed to the increased production of free radicals.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Linke Ge, Shengkai Cao, Crispin Halsall, Junfeng Niu, Dongxiao Bai, Guangkai He, Peng Zhang, Hongrui Ma
Summary: This study provides a detailed comparison of the photodegradation behavior of organic pollutants in ice and water, highlighting the faster photodegradation rate in ice due to specific concentration effects caused by freezing. The presence of dissolved constituents in ice also influences the photodegradation kinetics.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Engineering, Chemical
Cong Liu, Shuo Sun, Mingchuan Yu, Yufei Zhou, Xiaoxia Zhang, Junfeng Niu
Summary: A p-n/Z-scheme dual heterojunction photocatalyst (BFC) was designed and prepared by introducing black phosphorus nanosheets and FeSe2 into porous g-C3N4 to improve its photocatalytic activity. BFC achieved 100% TBBPA degradation efficiency in 40 min and 22.6% debromination efficiency in 60 min under visible light irradiation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Environmental Sciences
Xiaojing Wang, Duxiong Chen, Yufei Zhou, Mingchuan Yu, Junfeng Niu
Summary: The potential risks of continuous release of anti-cancer drugs like capecitabine have gained significant attention. Understanding the removal performance and protective mechanism against emerging contaminants is crucial for wastewater treatment using anammox techniques. Capecitabine had a slight effect on nitrogen removal performance in activity experiments. Through bio-adsorption and biodegradation, up to 64-70% of capecitabine can be effectively removed. However, a concentration of 10 mg/L significantly decreased the removal efficiency of capecitabine and total nitrogen in repeated load scenarios. Metabolomic and metagenomic analyses provided insights into the biodegradation pathway and protective mechanisms of the system, including the increased presence of heterotrophic bacteria and secretion of sialic acid.
Article
Environmental Sciences
Heshan Zheng, Yitong Ji, Shuo Li, Wei Li, Junfeng Niu
Summary: Studying the ecological risks of antibiotics and their degradation products is important for water environment security and AOPs development. This study found that tetracycline (TC) exhibited differential degradation pathways and resulted in differential growth inhibition trends on determined strains under different free radicals. Microcosm experiments combined with metagenomics revealed significant changes in the microbial community and TC resistance genes in water environment. Additionally, the study investigated the richness of genes related to oxidative stress and their effect on reactive oxygen species production and SOS response caused by TC and its intermediates.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Physical
Fan Pan, Jianjun Zhou, Tian Wang, Yunqing Zhu, Hongrui Ma, Junfeng Niu, Chuanyi Wang
Summary: This study develops an efficient catalyst for the electrochemical nitrate reduction reaction, achieving high nitrate conversion, ammonia selectivity, and reaction rate. The structure-performance relationship of the catalyst is revealed, and the reaction mechanism of nitrate-to-ammonia transformation is explored.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Correction
Engineering, Environmental
Qiongfang Zhuo, Jincheng Lu, Junfeng Niu, John C. Crittenden, Gang Yu, Shoushan Wang, Bo Yang, Zefang Chen
ACS ES&T ENGINEERING
(2023)
Article
Environmental Sciences
Cheng Fang, Saianand Gopalan, Xian Zhang, Lei Xu, Junfeng Niu, Ravi Naidu
Summary: This study examines the release of microplastics from toothbrushes using Raman imaging technique and algorithms. It confirms the release of microplastics in daily lives and provides an imaging analysis approach to identify the chemical elements of microplastics.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Xiaojing Wang, Yu Zou, Yameng Wang, Junfeng Niu, Haibo Li
Summary: This study demonstrates that the addition of 4-chlorophenol significantly inhibits the ammonia-nitrogen removal efficiency and the activity of anammox process at different concentrations. Metagenomic analysis reveals a decrease in the abundance of KEGG pathways associated with carbohydrate and amino acid metabolism with increasing 4-chlorophenol concentration. The presence of 4-chlorophenol enhances the decomposition of extracellular polymeric substances (EPS) and bacterial debris, and partially converts 4-chlorophenol to p-nitrophenol.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Environmental
Yindian Wang, Zhijuan Niu, Chengcheng Xu, Minghui Zhan, Kwangnak Koh, Junfeng Niu, Hongxia Chen
Summary: A real-time and label-free surface plasmon resonance (SPR) sensor was developed using a two-dimensional metal-organic framework as an SPR sensitizer to accurately monitor sulfamethazine (SMZ) in the environment. The sensor utilizes host-guest recognition to specifically capture SMZ from other similar antibiotics.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Chemical
Yuchen Guo, Zhongyu Guo, Tingting Wang, Lilan Zhang, Pengfei Yu, Wenwen Gu, Jieqiong Wang, Shaoxia Yang, Kaiwen Yao, Junfeng Niu
Summary: The photo-degradation of propranolol (PRO) was found to be faster in Pearl river water and dissolved organic matter (DOM) solutions compared to pure water. The reaction rate constants of DOM with PRO were determined to be (4.32 × 10^8 M^−1 s^−1) to (6.38 × 10^8 M^−1 s^−1). The degradation products were found to have decreased ecotoxicity compared to PRO.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Kaihang Zhang, Yuanzheng Zhang, Su Liu, Xin Tong, Junfeng Niu, Dong Wang, Junchen Yan, Zhaoyang Xiong, John Crittenden
Summary: In this study, a MnOx-TiO2 NTAs anode was prepared by compositing narrow bandgap manganese oxide (MnOx) with TiO2 nanotube arrays (TiO2 NTAs). Electrochemical characterizations revealed that increasing the composited concentration of MnOx improved the conductivity and reduced the oxygen evolution potential, thus enhancing the electrochemical activity of the MnOx-TiO2 NTAs anode. Moreover, the optimal degradation rate of benzoic acid (BA) was achieved by adjusting the MnOx concentration and degradation voltage. These quantitative results are of great significance for the design and application of high-performance materials for electrochemical advanced oxidation processes (EAOPs).
GREEN ENERGY & ENVIRONMENT
(2023)
Article
Engineering, Environmental
Yunlong Luo, Olalekan Awoyemi, Siyuan Liu, Junfeng Niu, Ravi Naidu, Cheng Fang
Summary: This study investigates the release of microplastic particles from ruptured air balloons using Raman imaging. It is found that each balloon explosion can potentially release tens-to-thousands of microplastics. The recommendation of using terrain mapping to scan the sample surface to avoid misleading images is also provided.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Cheng Fang, Olalekan Simon Awoyemi, Gopalan Saianand, Lei Xu, Junfeng Niu, Ravi Naidu
Summary: This study successfully identified and visualized microplastic fibers in indoor air using Raman imaging technology, providing statistical information. Air filters can serve as good indicators to monitor microplastic contamination in indoor air quality.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Chemistry, Physical
Jihan Zhang, Kun Zhao, Yueming Ma, Weirui Chen, Xinglei Shi, Chenghua Sun, Qianyu Zhang, Junfeng Niu
Summary: This study reports a single-atom bismuth loaded catalyst that enhances the electrocatalytic activity and selectivity of formic acid synthesis from CO2 reduction. The obtained catalyst exhibits significantly boosted production rate and Faradaic efficiency compared to other catalysts reported in the literature, owing to the electronic structure modulation to the bismuth center via threefold coordinated nitrogen ligands.
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)
