Article
Chemistry, Physical
Meiying Jia, Qi Liu, Weiping Xiong, Zhaohui Yang, Chang Zhang, Dongbo Wang, Yinping Xiang, Haihao Peng, Jing Tong, Jiao Cao, Haiyin Xu
Summary: This study successfully prepared Ar-Fe2O3/Ti3+-TiO2-NTs photoelectrodes through multiple processes and achieved efficient degradation of antibiotics. The photoelectrodes exhibited excellent performance in various applications.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Multidisciplinary
Xingdong Yang, Jiyan Qu, Linxi Wang, Jianhong Luo
Summary: A mixed catalyst of Ti3+ self-doped TiO2-x and gamma-Al2O3 was constructed by reducing commercial TiO2 for efficient NOx treatment. The synthesis of TiO2-x showed impressive degradation effects in a plasma catalytic system under oxygen-rich conditions, catalyzing the oxidation of NOx to NO2- and NO3- during the plasma-induced pseudo-photocatalysis process. This work provides a facile synthesis procedure and new insights into low-temperature NOx degradation.
Article
Chemistry, Multidisciplinary
Jiawei Zhao, Bin Wang, Yaru Zhao, Mingming Hou, Changhui Xin, Qian Li, Xin Yu
Summary: This study aims to fabricate self-doped Ti3+-TiO2 microspheres and dye sensitized self-doped Ti3+-TiO2 composites with high surface areas and visible-light absorption for highly enhanced photocatalytic tetracycline degradation under visible-light irradiation. The experimental results showed that the obtained Ti3+-TiO2 microspheres showed enhanced visible-light capture capacity and a larger surface area. Besides, the obtained Eosin Y/Ti3+-TiO2 composites showed efficient visible-light absorption and highly boosted photocatalytic performance towards tetracycline degradation. The highest rate constant for Eosin Y/Ti3+-TiO2-9% composite reached as high as 0.06657 min-1, approximately 8.09 times that of commercial TiO2, strongly demonstrating the significant roles of dye sensitization. Finally, a reasonable dye sensitization visible-light photocatalytic mechanism was suggested.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Chemistry, Physical
Jiayang Zheng, Cheng Liu, Zhiwen Wang, Yingzhang Shi, Yidong Hou, Jinhong Bi, Ling Wu
Summary: Ultrathin TiO2 nanosheets containing Ti3+ sites were used as a photocatalyst to degrade enrofloxacin (ENR) under visible light with a high efficiency of 98.6%. The higher degradation efficiency of ENR over NST is attributed to the increased Ti3+ and oxygen vacancies (OVs). Ti3+ sites on NST can form surface coordination intermediates with ENR molecules, activating ENR. The OVs on NST can adsorb and activate more O2 molecules, accelerating the generation of O2- by photogenerated electrons reduction. The photogenerated holes quickly transfer to the catalyst surface to directly degrade the activated ENR. A mechanism is proposed to explain the synergistic effect of coordination activation and photocatalysis over NST at a molecular level. This study emphasizes the important role of coordination activation in the photocatalytic degradation of antibiotics.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Chemistry, Physical
Jing Jiang, Shiyu Yang, Huili Lei, Lunhong Ai
Summary: Porous carbon nanostructures as supports can stabilize highly dispersed metal nanoparticles and facilitate mass transfer in reactions; catalytically active porous structures were synthesized and characterized for the efficient catalytic hydrolysis of NaBH4; the prepared Co@NC-600 sample shows high activity due to the catalytically active metallic Co and suitable support effect of N-doped carbon.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Qing Han, Chongbei Wu, Haimiao Jiao, Ruoyu Xu, Yuze Wang, Jijia Xie, Qian Guo, Junwang Tang
Summary: The study presents porous carbon-doped anatase TiOx (C-TiOx) nanosheets with high-concentration active sites of Ti3+ obtained through a reproducible bottom-up approach. It demonstrates that the high-concentration Ti3+ sites play a vital role in enhancing N-2 photoreduction activity. Combined with the morphology of porous nanosheets and the loading of a Ru/RuO2 cocatalyst, the optimized C-TiOx shows a high NH3 production rate and remarkable quantum efficiency under visible-light irradiation, outperforming current TiO2-based photocatalysts.
ADVANCED MATERIALS
(2021)
Article
Spectroscopy
Junwei Hou, Tengze Xu, Yanbin Ning, Bingxuan Huang, Ye Yang, Qingyao Wang
Summary: Ti3+ self-doped TiO2-x nanotube arrays were prepared and characterized, showing high visible light response, photocurrent, and photoelectrocatalytic activities. The improved performance was attributed to the synergistic effect of narrowed energy gap and enhanced electron transportation, providing new opportunities for high-performance solar cells and photocatalysts.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Physical
Wei Zhao, Kai Zhang, Licheng Wu, Qian Wang, Danhong Shang, Qin Zhong
Summary: This study evaluates the effect of self-doping Ti3+ into catalysts on the activity of the catalysts. Various characterization methods such as XRD, XPS, and EPR confirm the presence of Ti3+ and oxygen vacancy, which significantly affect the performance of the catalysts. The results indicate potential for improving low-temperature SCR performance through strategic design of Ti3+ self-doped catalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Yingjie Xu, Qi Zhang, Guiyu Jiang, Hongying Xia, Wuchen Cai, Heng Yan
Summary: In this study, Ti3+ self-doped TiO2 composite material loaded with AC was synthesized using the microwave method. Various characterization methods were employed to analyze the properties of the composite material, showing that the microwave-prepared composite material exhibited high efficiency in removing pollutants in wastewater treatment.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2022)
Article
Chemistry, Physical
Jiangwei Zhang, Fei Yu, He Yu, Shuhui Yang, Gaotian Zhang, Feng Jiang, Menglong Zhang, Dongxiang Luo
Summary: In this work, a CdS/CdS:Al-based photoanode is designed to enhance the band structure and film quality for efficient and stable photoelectrocatalytic reactions. The migration of holes from CdS to the counter electrode is inhibited, while an efficient transport path for photogenerated electrons is constructed. The addition of CdS:Al layer leads to reduced crystal size, enhanced hydrophilicity, and improved film continuity. The CdS:Al layer also enhances the hydrogen evolution reaction activity. The improved MoS2/CdS:Al/CdS photoanode exhibits high promise with a photocurrent density of 7.9 mA cm(-2) (at 0 V vs. V-Ag/AgCl), an on-set potential of -1.23 V (vs. V-Ag/AgCl), good stability, and suppressed dark current.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Aseom Son, Jiho Lee, Mingizem Gashaw Seid, Evandi Rahman, Jaewan Choe, Kangwoo Cho, Jaesang Lee, Seok Won Hong
Summary: This study investigates the dual role of Ti3+ self-doped TiO2 nanotubes (bl-TNA) as both an anode and a cathode in the photoelectrochemical (PEC) oxidative treatment of organic contaminants. The symmetric PEC system with bl-TNA photoelectrodes demonstrates higher interfacial charge transfer, photoresponsive activity, and kinetic constant for organic degradation compared to the asymmetric system with Ti cathodes. The addition of cathodic peroxydisulfate (PDS) enhances the photoactivity of the electrodes, particularly at the cathode.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Engineering, Environmental
Xiangyan Chen, Xin Peng, Longbo Jiang, Xingzhong Yuan, Jia Fei, Wei Zhang
Summary: In this study, a carbon-coated Ti3+- and Ov-doped A/R-TiO2 photocatalyst was successfully developed for the removal of antibiotics with high efficiency. The analysis on the effect of water matrix on the removal of TC indicated that the prepared materials exhibited good stability and repeatability in degrading antibiotics.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Fan Zhang, Weilai Wang, Lei Xu, Chengzhi Zhou, Yanglong Sun, Junfeng Niu
Summary: The study successfully achieved electrochemical degradation of Ni-EDTA using ECR-TiO2 NTA electrode, with high removal efficiency and the main degradation pathway involving cleavage of the amine group within Ni-EDTA. Results demonstrate that ECR-TiO2 NTA has excellent efficiency in removing Ni-EDTA.
Article
Chemistry, Physical
Wenyu Diao, Jiayue Xu, Xi Rao, Yongping Zhang
Summary: The facile synthesis of rutile TiO2 nanorods anchored at carbon cloth at low temperature was explored for applicable air purifier. Antler-like TiO2 arrays grown on carbon cloth with fluorine doping showed excellent photocatalytic oxidation of formaldehyde, indicating the potential for effective degradation in air purification applications.
Article
Chemistry, Multidisciplinary
Zeineb A. Thiehmed, Talal M. Altahtamouni
Summary: In this study, the effect of KBr salt on the growth of TiO2 nanorods was investigated. The addition of KBr with different concentrations controlled the growth of TiO2 nanorods, with KBr molecules suppressing lateral growth and allowing for axial growth. This impacted the morphology and internal surface area of the nanorods.
Article
Engineering, Chemical
Qiuling Ma, Xinyi Zhang, Ruonan Guo, Huixuan Zhang, Qingfeng Cheng, Mingzheng Xie, Xiuwen Cheng
SEPARATION AND PURIFICATION TECHNOLOGY
(2019)
Article
Engineering, Environmental
Ruonan Guo, Qi Meng, Huixuan Zhang, Xinyi Zhang, Bo Li, Qingfeng Cheng, Xiuwen Cheng
CHEMICAL ENGINEERING JOURNAL
(2019)
Article
Physics, Applied
Ruonan Guo, Xinyi Zhang, Bo Li, Huixuan Zhang, Jianfeng Gou, Xiuwen Cheng
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2019)
Article
Engineering, Environmental
Qiuling Ma, Huixuan Zhang, Xinyi Zhang, Bo Li, Ruonan Guo, Qingfeng Cheng, Xiuwen Cheng
CHEMICAL ENGINEERING JOURNAL
(2019)
Article
Engineering, Chemical
Ruonan Guo, Xinyu Qi, Xinyi Zhang, Huixuan Zhang, Xiuwen Cheng
SEPARATION AND PURIFICATION TECHNOLOGY
(2019)
Article
Engineering, Chemical
Ruonan Guo, Guixian Zhu, Yingjie Gao, Bo Li, Jianfeng Gou, Xiuwen Cheng
SEPARATION AND PURIFICATION TECHNOLOGY
(2019)
Article
Engineering, Chemical
Junjing Li, Ruonan Guo, Qiuling Ma, Li-chao Nengzi, Xiuwen Cheng
SEPARATION AND PURIFICATION TECHNOLOGY
(2019)
Article
Engineering, Environmental
Ruonan Guo, Li-chao Nengzi, Ying Chen, Yunhe Li, Xinyi Zhang, Xiuwen Cheng
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Chemistry, Multidisciplinary
Ruonan Guo, Li-Chao Nengzi, Ying Chen, Qingqing Song, Jianfeng Gou, Xiuwen Cheng
CHINESE CHEMICAL LETTERS
(2020)
Article
Chemistry, Multidisciplinary
Bo Li, Li-Chao Nengzi, Ruonan Guo, Yuqi Cui, Youxian Zhang, Xiuwen Cheng
CHINESE CHEMICAL LETTERS
(2020)
Article
Engineering, Environmental
Ruonan Guo, Yiliang Zhu, Xiuwen Cheng, Junjing Li, John C. Crittenden
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Engineering, Environmental
Ruonan Guo, Ying Chen, Li-chao Nengzi, Lezu Meng, Qingqing Song, Jianfeng Gou, Xiuwen Cheng
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Chemistry, Physical
Ruonan Guo, Yangyang Wang, Junjing Li, Xiuwen Cheng, Dionysios D. Dionysiou
APPLIED CATALYSIS B-ENVIRONMENTAL
(2020)
Article
Engineering, Environmental
Ruonan Guo, Yunhe Li, Ying Chen, Yu Liu, Bihui Niu, Jianfeng Gou, Xiuwen Cheng
Summary: This study prepared two types of composite membranes using CoCu layered double hydroxide (LDH) nanoparticles and compared their application potential in peroxymonosulfate (PMS) activation system, where LDH@PVDF membrane exhibited excellent PMS activation capability and low metal ions leaching concentration. The practical applicability of LDH@PVDF membrane in pharmaceutical pollutants removal processes was demonstrated through real aquatic environment testing, providing new insights into environmentally-friendly catalytic membrane preparation and practical application in wastewater treatment.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Yu Liu, Ruonan Guo, Guohua Shen, Yunhe Li, Yuanqing Li, Jianfeng Gou, Xiuwen Cheng
Summary: In this study, CuO@CuS nanocomposites were successfully synthesized and a CuO@CuS/PVDF membrane was constructed to effectively degrade tetracycline with a removal efficiency of 87.4%. The system was optimized for operating parameters and a mechanism involving hydroxyl radicals, sulfate radicals, and singlet oxygen was proposed for organic pollutants elimination. These findings suggest the potential application of the membrane/PS system in wastewater treatment.
CHEMICAL ENGINEERING JOURNAL
(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)
