Article
Biotechnology & Applied Microbiology
Shalu Rawat, Jiwan Singh, Janardhan Reddy Koduru
Summary: In this study, Jatropha leaf extract was utilized for the green synthesis of iron nanoparticles, which showed efficient catalytic degradation of phenol and p-nitrophenol. The nanoparticles were characterized through various methods and found to be potent in degrading both pollutants. The degradation efficiency of the iron nanoparticles was further enhanced with the incorporation of ultrasonic waves, showing promising results in the degradation of phenol and PNP.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Physical
Huixi Li, Haoran Wu, Linxia Li, Wei Zhu, Shuting Li, Qiang Yu, Lei Han, Zhen Chen
Summary: A novel hydrophobic microsphere Ce-PDMS-PbO2 structure on stainless steel (SS) was prepared via ultrasonic-electrodeposition as an efficient anodic electrocatalyst for p-nitrophenol (PNP) degradation. The as-synthesized Ce-PDMS-PbO2/SS anode achieved drastically enhanced PNP removal efficiency of 96.9% in 120 min, and the degradation reaction-order was calculated to be 0.9123 conformed to the quasi-first-order reaction kinetics. Overall, this work offers a new strategy and comprehension to construct a high-efficiency electrode for PNP pollutants degradation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Environmental Sciences
Xuan Zhou, Xuefeng Bai
Summary: PdCu alloy nanocatalysts supported on NiFe layered double hydroxide (PdCu-LDHs) were prepared by a green ultrasound-assisted reduction method. The action of ultrasound dissociated hydroxyl groups on the surface of LDHs to reduce Cu2+ and Pd2+ to Cu-0 and Pd-0, promoting the synergy between Pd alloy and LDHs. The electronic effects between Cu and Pd improved the catalytic performance and stability of PdCu-LDHs for the reduction reaction of 4-NP.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Micode Mazhani, Melisew Tadele Alula, Davison Murape
Summary: In this study, a facile and eco-friendly method was used to synthesize silver nanoparticles coated magnetic nanoparticles. The nanocomposites showed excellent catalytic performance, effectively degrading various pollutant dyes, while also enabling real-time monitoring and recyclability.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Physical
Lorianne R. Shultz, Corbin Feit, Jordan Stanberry, Zhengning Gao, Shaohua Xie, Vasileios A. Anagnostopoulos, Fudong Liu, Parag Banerjee, Titel Jurca
Summary: The study demonstrates that catalytically reducing highly toxic nitroaromatics to safer and synthetically usable aniline derivatives is a viable remediation strategy. The fabrication of catalysts based on ultralow loading of ruthenium on alumina monoliths shows good catalytic activity and ease of recyclability.
Article
Chemistry, Analytical
Xing-Liang Cheng, Xu Xia, Qian-Qian Xu, Jun Wang, Jing-Chen Sun, Yongxing Zhang, Shan-Shan Li
Summary: In this study, FeSe2 with high electronic conductivity and large active area was successfully prepared and exhibited high sensitivity and low detection limit for PNP and ONP, showing impressive electrochemical performance attributed to the combined effect of adsorption and catalysis. The constructed FeSe2 modified electrode demonstrated superior selectivity, stability, reproducibility, and enabled the electrochemical detection of organic pollutants in water samples from subsidence areas.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Environmental Sciences
Yan Wang, Lin He, Guochun Lv, Xiaomin Sun
Summary: A study was conducted on the importance of reactive chlorine species (RCS) in electrochemical systems for water disinfection. The electrochemical system utilizing carbon nanotube as cathode and oxide precursor as anode was able to effectively degrade nitrogen contaminants, with optimization of reaction conditions leading to higher removal efficiencies. By investigating the detailed degradation mechanisms through product identification and DFT calculations, it was found that Cl radicals' generation was stimulated by OH radicals, contributing to the transformation of pollutants.
Article
Nanoscience & Nanotechnology
Yali Liu, Hongliang Dong, Haowei Huang, Wei Zong, Yue-E Miao, Guanjie He, Ivan P. Parkin, Feili Lai, Tianxi Liu
Summary: Encapsulating gold nanoparticles in soluble porous organic cages stabilizes their size and enhances the catalytic reduction performance of 4-nitrophenol. Electron deficiency and lower energy barriers promote electron transfer during the hydrogenation process.
ACS APPLIED NANO MATERIALS
(2022)
Article
Environmental Sciences
Xuan Zhou, Jiaming Shi, Xuefeng Bai
Summary: In this study, NiFe-LDH-loaded ultrafine Pd nanocatalysts were prepared using a facile ultrasonic-assisted in situ reduction technology. The catalysts exhibited excellent catalytic performance for the degradation of organic pollutants.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Moussa Boudiaf, Youcef Messai, Embarek Bentouhami, Marck Schmutz, Christian Blanck, Laurent Ruhlmann, Hamza Bezzi, Latifa Tairi, Djamel Eddine Mekki
Summary: By synthesizing green NiO nanoparticles and using black seed extract as a stabilizing agent, adjusting the pH of the solution, the best catalytic activity was obtained at pH 9, which was confirmed by electrocatalytical activity measurements, indicating an increase in the number of electroactive sites.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Materials Science, Ceramics
J. G. Cuadra, Ana C. Estrada, C. Oliveira, L. A. Abderrahim, S. Porcar, D. Fraga, T. Trindade, M. P. Seabra, J. B. Carda
Summary: Spray pyrolysis is a promising method for producing thin, transparent films on glass substrates. ZnO thin films synthesized by this method exhibit high crystallinity, adhesion and chemical resistance, and also possess the ability to degrade water pollutants and exhibit antibacterial properties. These films have exceptional optical properties and durability, and can be reused.
CERAMICS INTERNATIONAL
(2023)
Article
Multidisciplinary Sciences
A. G. Ramu, Dongjin Choi
Summary: Azo dyes and nitrophenols are widely used in industries but are highly toxic to aquatic organisms. In this study, a low-cost PdO-doped NiO hetero-mixture was synthesized and found to have excellent catalytic activity, high reduction rates, and stable performance in reducing toxic azo compounds. The PdO-NiO catalyst could be a promising solution for the degradation of azo compounds in the environment.
SCIENTIFIC REPORTS
(2021)
Article
Biotechnology & Applied Microbiology
Shi-Kai Deng, Ning-Yi Zhou
Summary: A new 4C2NP degrader NyZ417 was isolated and identified as a member within Cupriavidus genus, which utilized 4C2NP as the sole nitrogen source for growth and degraded it through an oxidative pathway. The monooxygenase encoding gene onpA(NyZ417) from its complete genome was confirmed to be involved in 4C2NP biotransformation. This study not only elucidated a functional gene for 4C2NP degradation but also provides a foundation for cleaning up 4C2NP residues in the environment.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
(2021)
Article
Environmental Sciences
Shu Chen, Rui Liu, Zeyuan Kuai, Xuezhi Li, Shanshan Lian, Donglin Jiang, Jianfeng Tang, Ling Li, Ruoxi Wu, Chang Peng
Summary: A novel BaSnO3/PDDA/MXene (BSO/P/MX) nanocomposite photocatalyst was synthesized through electrostatic self-assembly method for efficient removal of toxic organic pollutants from aqueous solutions. The nanocomposite exhibited excellent catalytic activity towards the photodegradation of 4-nitrophenol, achieving a high degradation rate and rate constant under UV light irradiation.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Phyu Phyu Cho, Phyu Phyu Mon, Devthade Vidyasagar, Giridhar Madras, Ch. Subrahmanyam
Summary: A heterojunction of oxide perovskite (Bi2MoO6) dispersed on polymeric carbon nitride (PCN) sheets was prepared using solvothermal and thermal pyrolysis approaches. The introduction of Bi2MoO6 particles onto the PCN sheets enhanced light absorption characteristics of the heterojunction. The resulting heterojunction had a larger surface area and demonstrated accelerated reduction kinetics compared to the individual catalysts.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Engineering, Chemical
Gamal M. S. ElShafei, Ibrahim M. A. ElSherbiny, Atef S. Darwish, Christine A. Philip
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2014)
Article
Engineering, Chemical
A. E. ElMetwally, Gh. Eshaq, A. M. Al-Sabagh, F. Z. Yehia, C. A. Philip, N. A. Moussa, Gamal M. S. ElShafei
SEPARATION AND PURIFICATION TECHNOLOGY
(2019)
Article
Chemistry, Applied
GMS ElShafei, CA Philip, NA Moussa
MICROPOROUS AND MESOPOROUS MATERIALS
(2005)
Article
Chemistry, Physical
GMS El Shafei, CA Philip, NA Moussa
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2004)
Article
Chemistry, Physical
GMS El Shafei, CA Philip, NA Moussa
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2001)
Article
Chemistry, Physical
GMS El Shafei, NA Moussa, CA Philip
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2000)
Article
Chemistry, Applied
GMS El Shafei, CA Philip
ADSORPTION SCIENCE & TECHNOLOGY
(2002)
Article
Chemistry, Physical
Bolun Yu, Denan Li, Qianqian Zhu, Shufan Yao, Lifeng Zhang, Yanshuo Li, Zhenxin Zhang
Summary: This study successfully improved the catalytic activity of a zeolitic octahedral metal oxide by incorporating a single zinc species into its micropore. The zinc incorporation achieved a high ethane conversion rate and ethylene selectivity. Mechanism study showed that the isolated zinc site played a crucial role in activating oxygen and ethane, as well as stabilizing intermediates and transition states.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Ruoqi Liu, Hao Fei, Jian Wang, Ting Guo, Fangyang Liu, Zhuangzhi Wu, Dezhi Wang
Summary: This work successfully synthesized a high-performing S-enriched MoS2 catalyst for electrocatalytic nitrogen reduction reaction (NRR), demonstrating high activity and selectivity. The synergistic effect of the 1T phase and bridging S22- species was shown to play a positive role in NRR performances, and DFT calculations revealed the mechanism behind the improved performance.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Pan Xia, Lele Zhao, Xi Chen, Zhihong Ye, Zhihong Zheng, Qiang He, Ignasi Sires
Summary: This study presents a modified gas-diffusion electrode (GDE) for highly efficient and stable H2O2 electrosynthesis by using trace polymethylhydrosiloxane (PMHS). DFT calculations provide an in-depth understanding of the roles of PMHS functional groups.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Kwangchol Ri, Songsik Pak, Dunyu Sun, Qiang Zhong, Shaogui Yang, Songil Sin, Leliang Wu, Yue Sun, Hui Cao, Chunxiao Han, Chenmin Xu, Yazi Liu, Huan He, Shiyin Li, Cheng Sun
Summary: Different B-doped rGO catalysts were synthesized and their 2e- oxygen reduction reaction (ORR) performance was investigated. It was found that the 2e- ORR selectivity of B-doped rGO was influenced by the B content and oxygen mass transfer conditions. The synthesized catalyst exhibited high 2e- ORR selectivity and was capable of degrading organic pollutants continuously.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Li Lv, Lin Lei, Qi-Wen Chen, Cheng-Li Yin, Huiqing Fan, Jian-Ping Zhou
Summary: Monoclinic phase La2Ti2O7 and orthorhombic phase Bi4Ti3O12 are widely used in photocatalysis due to their layered crystal structure. The electronic structures of these phases play a crucial role in their photocatalytic activity. Heat treatment in a nitrogen atmosphere introduces more oxygen vacancies into the S-scheme heterojunction, leading to enhanced NO removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Choe Earn Choong, Minhee Kim, Jun Sup Lim, Young June Hong, Geon Joon Lee, Keun Hwa Chae, In Wook Nah, Yeomin Yoon, Eun Ha Choi, Min Jang
Summary: In this study, the synergistic effect between argon-plasma-system (AP) and catalysts in promoting the production of reactive species for water remediation was investigated. By altering the oxygen vacancies concentration of CeO2/Bi2O3 catalyst, the production of hydrated electrons was stimulated for PFOA removal. The results showed that the built-in electric field in the Bi/Ce0.43 interface enhanced electron migration and eaq- generation, leading to improved PFOA removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yushan Wu, Di Xu, Yanfei Xu, Xin Tian, Mingyue Ding
Summary: Efficient synthesis of primary amines from carbonyl compounds was achieved via reductive amination using Ru@NC-Al2O3 as a catalyst, exhibiting high activity and selectivity under mild conditions.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yilan Jiang, Peifang Wang, Tingyue Chen, Keyi Gao, Yiran Xiong, Yin Lu, Dionysios D. Dionysiou, Dawei Wang
Summary: By controlling the content of Co and Ni in Co1-xNixFe2O4, the production of O-1(2) from H2O2 can be regulated. NiFe2O4, with the lowest lattice distortion degree, can efficiently produce O-1(2) as the dominant reactive oxygen species. The system also exhibits significant resistance to water matrix interference.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Jia-Cheng E. Yang, Min -Ping Zhu, Daqin Guan, Baoling Yuan, Darren Delai Sun, Chenghua Sun, Ming-Lai Fu
Summary: This study successfully modulated the electron configuration and spin state of millimetric metal catalysts by adjusting the support curvature radius. The electronic structure-oriented spin catalysis was found to affect the degradation of pollutants, providing new insights for the design and production of highly active, reusable, and stable catalysts.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Tao Zhong, Su Tang, Wenbin Huang, Wei Liu, Huinan Zhao, Lingling Hu, Shuanghong Tian, Chun He
Summary: In this study, a highly efficient photocatalyst for the elimination of CH3SH was developed by engineering different crystal facets and coupling them with PHI. Cu (111)/PHI exhibited the highest elimination efficiency and showed good stability and reusability. The enhanced surface electron pump effect and effective adsorption mechanisms were revealed through comprehensive characterizations and DFT calculations.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Feifei Yang, Tianyu Zhang, Jiankang Zhao, Wei Zhou, Nicole J. Libretto, Jeffrey T. Miller
Summary: A Ni3Sn intermetallic nano particle was found to have geometrically isolated Ni sites that could selectively cleave C-O bonds in biomass derivatives. This nano particle showed high activity and selectivity towards 2-methylfuran, unlike Ni nanoparticles that produced other unwanted products derived from the aromatic rings.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Lulu Qiao, Di Liu, Anquan Zhu, Jinxian Feng, Pengfei Zhou, Chunfa Liu, Kar Wei Ng, Hui Pan
Summary: This study reveals that surface evolution plays a crucial role in enhancing the electrocatalytic performance of transition metal oxides for electrochemical nitrate reduction reaction (e-NO3RR). Incorporating nickel into Co3O4 can promote surface reconstruction and improve the adsorption of intermediates and reduce energy barriers, leading to enhanced catalytic performance. The reconstructed cobalt-nickel hydroxides (CoyNi1_y(OH)2) on the catalyst's surface serve as the active phase.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Xinyu Song, Yang Shi, Zelin Wu, Bingkun Huang, Xinhao Wang, Heng Zhang, Peng Zhou, Wen Liu, Zhicheng Pan, Zhaokun Xiong, Bo Lai
Summary: This study explores the discriminative activities and mechanisms for activation of O-O bond in peroxy compounds via single-atom catalysts (SACs) with higher coordination numbers (M-N5). The atomic catalyst (Fe-SAC) with Fe-N5 as the active center was constructed, effectively activating peroxymonosulfate (PMS), peroxydisulfate (PDS), and hydrogen peroxide (H2O2). The study demonstrates the degradation efficiencies of acyclovir are related to the O-O bond length in different peroxy compounds, and reveals the discriminative mechanisms for activation of O-O bond in different Fenton-like systems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Yangzhuo He, Hong Qin, Ziwei Wang, Han Wang, Yuan Zhu, Chengyun Zhou, Ying Zeng, Yicheng Li, Piao Xu, Guangming Zeng
Summary: A dual-metal-organic framework (MOF) assisted strategy was proposed to construct a magnetic Fe-Mn oxycarbide anchored on N-doped carbon for peroxymonosulfate (PMS) activation. The FeMn@NC-800 catalyst exhibited superior activity with almost 100% degradation of sulfamethazine (SMZ) in 30 minutes. The study provided insights for the rational design of high-performance heterogeneous catalysts and proposed a novel nonradical-based catalytic oxidation for environmental cleaning.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)