Article
Engineering, Environmental
Songshan Jiang, Zhihao Zhao, Kuncheng Cui, Yi Tang, Xi Du, Bai He, Min Li, Jian Feng, Bo Yu, Wei Xiong
Summary: Novel Cu and Mn supported UiO-66@Al2O3 ceramic tube membrane catalysts were synthesized for efficient catalytic wet peroxide oxidation of phenolic wastewater. Cu-UiO-66CT catalysts exhibited excellent catalytic activity and stability, while Mn-UiO-66CT catalysts showed lower activity. This research provides a promising strategy to enhance the stability of MOFs catalysts in the CWPO process.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Hong Shen, Zijun Tang, Xiang Xiao, Haiwen Wu, Hang Zhou, Ping Fang, Dingfang Zhu, Jianhua Ge
Summary: In this study, a Mn-Ce/Al2O3/TiO2 catalyst prepared by impregnation method was used for synergistic O-3 oxidation of NO. The catalyst showed the best performance with a Mn:Ce molar ratio of 4:1, resulting in a significant increase in NO removal rate and efficiency.
Article
Engineering, Environmental
Donglin Yang, Bingxiao Feng, Yaping Liu, Chaoting Deng, Hengjun Gai, Meng Xiao, Tingting Huang, Quanhong Zhu, Hongbing Song
Summary: In this study, a low-loading Ru/Cu bimetallic catalyst with high activity and hydrothermal stability was successfully prepared through a simple disposal method. The catalyst exhibited excellent catalytic performance in the process of catalytic wet air oxidation (CWAO), effectively converting ammonia-containing wastewater into water that meets the discharge standards at low temperature and pressure. Furthermore, the prepared catalyst showed good durability and stability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Guoqiang Li, Siqi Chai, Guojie Zhang, Jun Liu, Yongfa Zhang, Yongkang Lv, Ying Wang, Yuqiong Zhao
Summary: In this study, Ce-modified Cu-based carbon materials (Cu-Ce/AC) were prepared and used as catalysts for the catalytic wet air oxidation (CWAO) degradation of phenol wastewater. The research found that the stability of Cu-Ce/AC catalyst was weaker in acidic environment and maintained high activity in alkaline environment. The incomplete degradation intermediate products accumulated and blocked the active sites of the catalyst, leading to its deactivation. Additionally, a redox cycle between Cu and Ce was observed during phenol degradation, promoting the formation of oxygen vacancies and enhancing the degradation process.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Wenyang Zhang, Boyong Ye, Zixin Zhong, Yuanyuan Jiang, Ruru Zhou, Zhanxiang Liu, Zhaoyin Hou
Summary: The study uses Cu-x-g-C3N4 catalyst for CWAO technology to degrade phenols, antibiotics, and vitamins, with the experimental results showing excellent performance of the catalyst; notably, Cu(II) or Cu(I) in the catalyst is more effective than Cu(0) and CuO.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Huici Shan, Rena Oh, Jianqiang Fan, Xiang Zhang, Nuowei Zhang, Xiaoyang Huang, Gyeong-Su Park, Quanxing Zheng, Hongliang Lu, Binghui Chen
Summary: Catalytic wet air oxidation (CWAO) process was used to degrade phenol in wastewater, in which Pt-M (M=Pb, Cu) alloy catalysts with Pt0 and M2+ were developed. Pt-Pb/XC-72R exhibited high activity and stability in CWAO, while Pt-Pb/EC-300 rapidly deactivated. Pt-Pb was then replaced by Pt-Cu nanoparticles to maintain catalytic activity and stability, and increasing Cu2+ further enhanced the performance.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Dajie Yang, Fanbin Meng, Zhuoran Zhang, Xiang Liu
Summary: This study investigates the application of CexMn(1-x )O(2) metal oxides loaded on Al2O3 catalysts (Mn-Ce/Al2O3) in catalytic ozonation for the degradation of ciprofloxacin in wastewater. The results show that the use of Mn-Ce/Al2O3 catalyst significantly enhances the degradation efficiency of ciprofloxacin and increases the reaction rate by 3 times compared to ozone alone.
Article
Environmental Sciences
Wanying Zhang, Wenjing Sun, Yanan Zhang, Danyang Yu, Weiling Piao, Huangzhao Wei, Xiaowei Liu, Chenglin Sun
Summary: This study explores the use of RuO2/TiO2 catalysts in the catalytic wet air oxidation (CWAO) process to degrade high-salinity and high-organic wastewater. The RuO2/TiO2-350 catalyst exhibits the best performance in both non-saline and saline conditions.
Article
Engineering, Environmental
Jile Fu, Xiang Zhang, Huan Li, Bingbing Chen, Songshou Ye, Nuowei Zhang, Zhiyang Yu, Jinbao Zheng, Binghui Chen
Summary: In this study, a highly active Pt/TiO2 catalyst for the catalytic wet air oxidation (CWAO) of phenol was successfully prepared by supporting pre-synthesized Pt on TiO2. The research indicated that the enhancement of electron-metal support interaction (EMSI) can significantly improve the catalyst activity.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Kaiwen Ren, Shuo Liu, Zhiyu Dong, Junfeng Wang
Summary: A FeMnCe-activated semi-coke catalyst (FeMnCe/ASC) was prepared using semi-coke as the raw material. The structure and morphology of the catalyst were characterized, and its catalytic activity and stability were investigated. Under the optimal conditions, the degradation rates of ammonia nitrogen and COD reached 100%, and even after five times of recycling, the degradation rates still remained above 90%. The mechanism and pathway of piperazine degradation were also evaluated.
Article
Environmental Sciences
Shangye Chu, Xu Zeng, Hai Lin, Yuting Zhu
Summary: In this study, the catalytic wet oxidation of excess activated sludge derived from pharmaceutical wastewater treatment was investigated using a Cu/gamma-Al2O3 catalyst. The results demonstrated that the catalyst, fabricated via co-precipitating method, exhibited excellent catalytic performance. The highest removal rates of volatile suspended solids (VSS) and total chemical oxygen demand (TCOD) were achieved through condition optimization, and the volatile fatty acids (VFAs) produced from the wet oxidation of sludge showed great potential for resource utilization in biological wastewater treatment.
Article
Engineering, Environmental
Hengjun Gai, Xiaofeng Liu, Bingxiao Feng, Chaojie Gai, Tingting Huang, Meng Xiao, Hongbing Song
Summary: In this study, a highly dispersed heterogeneous metal catalyst Ru@TiO2 was successfully fabricated and applied in the catalytic wet air oxidation of ammonia. The catalyst showed excellent catalytic performance in reducing ammonia concentration to meet emission standards and adjusting the selectivity of oxidation products. Additionally, the kinetics and mechanism of CWAO of ammonia were studied, providing a theoretical basis for industrial applications.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Jian-Rong Li, Wan-Peng Zhang, Chang Li, Chi He
Summary: In this study, Mn-Cu bimetallic oxides with high catalytic activity were facilely prepared by a hydrothermal-redox method for toluene oxidation. The control of Cu/Mn molar ratio was found to tune the lattice defect and oxygen vacancy concentration in the prepared materials. Among them, spinel structured MnCu0.5 exhibited the highest catalytic activity and durability at 210 degrees C.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Engineering, Environmental
Boge Zhang, Yongjie Shen, Biyuan Liu, Jian Ji, Wenjing Dai, Pingli Huang, Dengsong Zhang, Guangqin Li, Ruijie Xie, Haibao Huang
Summary: Hydroxylation of the catalytic surface provides a new strategy for boosting the degradation of refractory volatile organic compounds (VOCs) at room temperature. This study demonstrates the successful ozone catalytic oxidation (OZCO) of toluene using a hydroxyl-mediated MnOx/Al2O3 catalyst. The catalyst exhibits excellent toluene degradation performance, with complete removal, high mineralization rate, and catalytic stability.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Kang-He Zhao, Yu-Long Ma, Feng Lin, Shao-Ying Ge, Li Zhu
Summary: The Mn-Cu-Ce tri-metal oxide supported on gamma-Al2O3 catalyst showed improved catalytic ozonation performance in treating coal chemical wastewater, significantly enhancing removal of TOC and improving biodegradability. The synergy between Mn, Cu, and Ce oxides enriched catalytic active sites and promoted the generation of center dot OH radicals, leading to effective degradation and mineralization of pollutants in the wastewater. Additionally, the catalyst exhibited good stability over multiple treatments, making it a promising candidate for advanced treatment of organic wastewaters through catalytic ozonation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)