Article
Engineering, Environmental
Duho Jang, Haedam Jin, Min Kim, Yeong Don Park
Summary: Organic semiconductors show promise as sensing materials for printed organic gas sensors, but they face challenges related to low sensitivity and poor stability. Blending perovskite nanocrystals with conductive polymer can improve gas sensing performance while maintaining high responsivity and response rates. Surface modification of the perovskite enhances the adsorption of target gas molecules. Perovskite materials also protect the polymer thin film from oxidation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Fugong Qi, Zhenwen Yang, Qiwen Qiu, Ying Wang, Huijun Li
Summary: In this study, molecular dynamics simulation was used to investigate the TiO2/Ti interfacial reaction. The simulation results revealed that a decrease in oxygen concentration in TiO2 and the formation of defective TiO2 occurred after the interfacial reaction. Based on these findings, defective TiO2 with a narrow band gap was successfully synthesized, and its outstanding photocatalytic activity was demonstrated.
SURFACES AND INTERFACES
(2022)
Article
Materials Science, Ceramics
Jing Chen, Mengde Shan, Xueyan Shi, Shichuan Zhang, Jingmei Li, Jingfei Luan, Lijing Duan, Huimin Hou
Summary: A new type of BiSnSbO6-TiO2 composite photocatalytic antibacterial material with heterojunction structure showed significantly stronger antibacterial performance against bacteria and fungi compared to BiSnSbO6 and TiO2 alone. The composite material exhibited excellent antibacterial efficiency against various microorganisms under LED light.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Yonghui Zhang, Baoji Miao, Qiuling Chen, Zhiming Bai, Yange Cao, Basandorj Davaa
Summary: In this study, TiO2-montmorillonite (MMT) composites were synthesized hydrothermally under variable conditions, characterized, and evaluated for photocatalytic activity. The composite with a TiO2 mass ratio of 30 wt%, prepared at a pH of 6, a reaction temperature of 160 degrees C, and a dwelling time of 24 h showed the highest methylene blue removal efficiency of 95.6%.
Article
Chemistry, Physical
Xiaodong Zhu, Fengqiu Qin, Yuhao Luo, Ling Zhang, Daixiong Yang, Wei Feng, Shanhua Chen
Summary: A new BaSnO3/TiO2 p-n heterojunction composite photocatalyst with anatase/rutile/brookite three-phase coexistence was investigated. The results showed that the built-in electric field at the heterogeneous interfaces promoted the separation of photogenerated charges and enhanced the photocatalytic performance. The composite with a Ba/Ti molar ratio of 5% exhibited the highest photocatalytic activity.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Green & Sustainable Science & Technology
Wenhe Yu, Baogui Zheng, Kui Mao, Jiacheng Jiang, Bingcheng Luo, Xiaowen Wu, Tianyi Tao, Xin Min, Ruiyu Mi, Zhaohui Huang, Yan-gai Liu, Minghao Fang, Zilong Zhao
Summary: In this study, chitin-modified and graphene oxide bridged TiO2/carbon fibers catalyst was synthesized and found to exhibit high adsorption and photodegradation ability, showing significant potential for sewage treatment applications.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Physical
Wangbing Sun, Mingxuan Sun, Xianglong Meng, Yongqiang Zheng, Ziyang Li, Xiangzhi Huang, Muhammad Humayun
Summary: A series of alkynyl carbon functionalized N-TiO2 was successfully prepared by ball milling. The alkynyl carbon materials were successfully doped into N-TiO2, and the catalytic performance of alkynylated N-TiO2 for various organic dyes and NH3 production was significantly enhanced under visible light. The introduction of alkynyl carbon into semiconductor materials is a promising strategy for improving their photocatalytic properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Hao Zhou, Bin Zhang, Zhan Jiang, Haiguang Zhao, Yuanming Zhang
Summary: In this study, carbon dots were used to modify TiO2 to form a direct Z-scheme (DZS) structure, enhancing the photocatalytic activity. The C-dot/TiO2 composite was prepared by ultrasonication at room temperature through the Ti-O-C bond and electrostatic interaction. The composite showed significantly improved absorption and generated more free radicals, leading to approximately 10 times higher photocatalytic activity compared to TiO2. This study provides an efficient approach for preparing C-dot/TiO2 composites with high photocatalytic activity at room temperature.
Article
Chemistry, Multidisciplinary
Faxing Liu, Quanjun Xiang, Xigui Zhang, Haiping Zhou
Summary: In this study, Ni cocatalysts on a TiO2 composite photocatalyst with different graphene oxide (GO) contents were prepared using a hydrothermal method and characterized. It was found that the TiO2/GO/Ni nanosheet composites have a large specific surface area and can provide a large number of active sites for photocatalytic hydrogen production. GO can broaden the optical absorption range of TiO2 and absorb more visible light, stimulating the generation of more electron-hole pairs. Additionally, GO can collect electrons and promote the separation of electron-hole pairs. Ni, as a cocatalyst, can adsorb hydrogen ions and facilitate the migration of photogenerated electrons, thus ensuring high efficiency of the photocatalytic reaction.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Applied
Alejandra Romero-Moran, Anai L. Zavala-Franco, Jose L. Sanchez-Salas, Miguel Angel Mendez-Rojas, Joel Joel Molina-Reyes
Summary: In this work, a method for fabricating rutile-TiO2 films with different submicron thicknesses on SiO2 was proposed. The correlation between the generation of a positively charged TiO2 surface and E. coli attraction was investigated. Results showed that the formation of a positively charged TiO2 surface enhanced the photocatalytic antibacterial activity, facilitating the adsorption and degradation of negatively charged substances and pathogenic microorganisms.
Article
Materials Science, Multidisciplinary
Muhammad Azeem Aslam, Lefang Zhang, Xin Liu, Yimei Xu, Na Li, Ping Zhang, Ahmed H. Ragab, Ahmed Deifalla, Muhammad Khan
Summary: This study explores the improvement of pitch-derived carbon foam (CF) by dispersing functionalized graphene oxide and functionalized titanium dioxide additives. The results show that the addition of these additives significantly enhances the structural morphology, thermal properties, mechanical behaviors, and catalytic dye degradation performances of the CF composites.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
Uriel Chacon-Argaez, Luis Cedeno-Caero, Ruben D. Cadena-Nava, Kendra Ramirez-Acosta, Sergio Fuentes Moyado, Perla Sanchez-Lopez, Gabriel Alonso Nunez
Summary: Ag and TiO2 nanoparticles were directly synthesized on cotton fabrics using sonochemical and solvothermal methods. The impregnated fabrics were characterized and showed successful formation and negligible leaching of nanoparticles. The Ag-TiO2/cotton composites exhibited improved photocatalytic activity and biocide activity against Staphylococcus aureus and Escherichia coli.
Article
Chemistry, Physical
Xiaodong Jiang, Jiankun Wang
Summary: A three-dimensional TiO2/reduced graphene oxide (TiO2-rGO) aerogel with enhanced interfacial charge transfer was synthesized using a hydrothermal method, showing excellent photocatalytic activity for the degradation of Methylene Blue (MB) and Reactive Red 24 (RR24) dyes. The photocatalytic degradation rate of TiO2-rGO aerogel was more than 3.8 times that of pure TiO2 and more than 2.7 times that of TiO2-GO aerogel. The enhanced photocatalytic activity was attributed to the increased pi-conjugated structure of rGO, which improved interfacial charge transfer and inhibited electron-hole pairs recombination. The active species in the photocatalytic degradation process were suggested to be center dot OH and center dot O-2(-). These findings provide a significant reference for the preparation of high-performance TiO2-based photocatalysts.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Chemical
Aron Agoston, Lilla Balassa, Agota Deak, Gergely Ferenc Samu, Szabolcs Peter Tallosy, Gyongyi Gombar, Laszlo Janovak
Summary: Facile sulfation of TiO2 semiconductor photocatalyst was achieved using elemental sulfur from desulfurization of petroleum through a simple grinding and calcination method. The successful sulfation of the prepared visible-light-active photocatalyst was confirmed by infrared and X-ray photoelectron spectroscopy. Photocatalytic tests demonstrated that the most efficient member of the series exhibited higher photocatalytic activity than TiO2 for the photodegradation of formic acid under both UV and visible-light activation. Additionally, the sulfur-modified photocatalyst exhibited improved electrokinetic and water dispersibility behaviors, enabling the preparation of polyacrylate-based photoreactive thin films with enhanced photocatalytic activity, strong antimicrobial properties, and improved mechanical behavior.
CHEMICAL ENGINEERING & TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Lili Wang, Juanjuan Ren, Qianqian Gong, Jingyue Xuan, Meiling Sun, Haifeng Zhang, Qi Zhang, Guangchao Yin, Bo Liu
Summary: In this study, a high-performance Ag3PO4/TiO2@C composite photocatalyst was successfully fabricated through unique structure and interface designs. The composite exhibited excellent photocatalytic performance due to its larger surface area, better light-harvesting ability, and superior charge transfer and separation characters.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Physical
Long Yang, Yujie Huang, Yuting Peng, Fei Liu, Qngchun Zhang, Huichao He, Jun Wang, Long Jiang, Yong Zhou
JOURNAL OF PHYSICAL CHEMISTRY A
(2020)
Article
Chemistry, Physical
Yuting Wu, Long Yang, Bo Wu, Jie Li, Binyao Liu, Gaili Ke, Faqin Dong, Yong Zhou, Huichao He
Summary: The catalytic role of β-MnO2 for the oxidative coupling of 2-naphthols into 1,1'-bi-2-naphthols was systematically investigated in both dark and under visible-light irradiation. Results showed that β-MnO2 catalysis had optimal performance, with high selectivity and stability even after multiple uses. This study provided a comprehensive understanding of the catalytic mechanism of MnO2 for this reaction.
Article
Chemistry, Physical
Long Yang, Haijun Huang, Xuedan Luo, Huichao He, Fang Gao, Yong Zhou
JOURNAL OF PHYSICAL CHEMISTRY A
(2020)
Article
Chemistry, Physical
Qian Yang, Jinyan Du, Xiaoqin Nie, Dingming Yang, Liang Bian, Long Yang, Faqin Dong, Huichao He, Yong Zhou, Huaming Yang
Summary: The use of magnetic field assistance is a more effective approach in improving the activity of photoelectrodes for solar water splitting compared to conventional PEC water splitting. It provides a new, effective, and general strategy to enhance the efficiency of photoelectrodes for solar water splitting and other PEC reactions.
Article
Chemistry, Physical
Yun Xie, Minghao Ye, Biao Xiong, Binyao Liu, Fei Liu, Huichao He, Long Yang, Long Jiang, Yi Dan, Yong Zhou
Summary: A metal-free and straightforward protocol for the photocatalytic synthesis of phenols from arylboronic acids has been demonstrated using perylene-g-C3N4 polymeric semiconductors. The research revealed that internal imide functional groups within the catalyst's molecular structures can facilitate ROS generation, with O-2(center dot-) being the decisive specie in the hydroxylation. Yield can reach as high as 97% using this method.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Environmental
Fei Liu, Gang Ding, Zhuo Zheng, Zoufei Du, Jueying Sun, Long Yang, Yi Dan, Yun Huang, Long Jiang
Summary: The study synthesized flower-like perylenetetracarboxylic-Zn(II) superstructures with Zn2+ ions and constructed a step-scheme heterojunction with Bi2WO6. This heterojunction significantly improved the photocatalytic efficiency for tetracycline degradation compared with pure Zn-PTC and Bi2WO6. The step-scheme charge transfer pathway effectively inhibited the recombination of photo-generated charges and utilized the different oxidation and reduction abilities of Zn-PTC and Bi2WO6.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Electrochemistry
Haiyan Ye, Long Yang, Xiaoqin Nie, Kun Liu, Shan Yang, Yong Zhou, Faqin Dong, Huichao He, Huaming Yang
Summary: In this work, an electrochemical cell using graphite electrodes and HCO3--containing aqueous electrolyte has been assembled for dual-functional water splitting and electro-Fenton-like degradation of organic pollutants, demonstrating promising application prospects in H2O2 synthesis and environmental remediation in alkaline solution.
ELECTROCHIMICA ACTA
(2021)
Article
Materials Science, Multidisciplinary
Ke Li, Long Yang, Huichao He, Kun Liu
Summary: The study focused on the pH sensitive fluorescence enhancement effect of aramid film containing benzimidazole units. The film showed a significant emissive enhancement after treatment, with fluorescence lifetimes increasing significantly. The hydrogen-bond effect increased the molecular rigidity and decreased the nonradiative transition probability within the polymer chains, leading to the fluorescence enhancement.
Article
Chemistry, Physical
Long Yang, Hieu Minh Ngo, Yan Luo, Amol U. Pawar, Ramesh Poonchi Sivasankaran, Kangmin Ok, Young Soo Kang
Summary: Organocatalyzed atom transfer radical polymerization (O-ATRP) with light as photoredox catalysis is an emerging field of photocatalysis and chemical transformations. This study investigated the key role of N-unsubstituted diketopyrrolopyrrole (DPP) analogues in charge transfer, singlet/triplet formation, and intermediate formation, providing insights into the structure-properties relationship and catalytic mechanism. The findings contribute to the rational search for metal-free photocatalysts for controlled radical polymerization and other organic transformations.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Lingpu Jia, Juan Hao, Shuangshuang Wang, Long Yang, Kunping Liu
Summary: A novel pyridine diketopyrrolopyrrole-functionalized graphene oxide (PDPP-GO) composite was constructed for highly sensitive detection of 4-nitrophenol (4-NP) in the environment using an improved Hummers' method. PDPP was dissolved in sulfuric acid and reacted with GO, resulting in PDPP evenly adhering to the GO surface. The PDPP-GO coated electrode showed excellent electrocatalytic activity for 4-NP detection with remarkable sensitivities and reliable determination.
Article
Chemistry, Multidisciplinary
Lingpu Jia, Juan Hao, Long Yang, Jun Wang, Lijuan Huang, Kunping Liu
Summary: A novel direct electrochemical sensor based on a PDPP/GO/GCE nanocomposite-modified electrode was developed for the detection of chloramphenicol (CAP). The introduction of PDPP effectively improved the electrocatalytic activity of the sensor, as confirmed by cyclic voltammetry. The PDPP/GO/GCE exhibited a significant response signal to CAP, with a wide linear range and low limit of detection. The sensor also demonstrated satisfactory anti-interference, reproducibility, and stability.
Article
Chemistry, Multidisciplinary
Jialong Tang, Ruoxuan Yang, Yuting Peng, Hong Lin, Xin He, Yingze Song, Kaipeng Wu, Youngsoo Kang, Long Yang
Summary: This study develops an ultra-stable and ultra-thin hydrogen organic framework nanosheet with exceptional long-term capacity retention in lithium-ion and sodium-ion batteries. Mechanism studies reveal that the impressive performance retention is attributed to large electron delocalization, fast ion diffusion, and physicochemical stability within the nanosheet. The advantageous features pave the way for developing next-generation low-cost and highly stable energy storage batteries.
Review
Chemistry, Physical
Long Yang, Amol U. Pawar, Ramesh Poonchi Sivasankaran, Donkeun Lee, Jinhua Ye, Yujie Xiong, Zhigang Zou, Yong Zhou, Young Soo Kang
Summary: This review focuses on the identification, conversion, reaction kinetics, pathways, and mechanisms of intermediates, as well as the efficiency and selectivity of multicarbon product formations during photocatalytic and electrocatalytic CO2 reduction. Theoretical simulations and calculations provide deeper insights into this process. Future research directions and inspirations are also included to guide the integration of catalytic systems.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Review
Chemistry, Physical
Long Yang, Amol U. Pawar, Ramesh Poonchi Sivasankaran, Donkeun Lee, Jinhua Ye, Yujie Xiong, Zhigang Zou, Yong Zhou, Young Soo Kang
Summary: This review explores the identification and control of intermediates in the photocatalysis and electrocatalysis of CO2 reduction to liquid fuel and multicarbons. It also summarizes theoretical simulations that provide insights into the efficiency and selectivity of multicarbon product formations. Future research directions and perspectives are included to guide catalytic system integration.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Review
Chemistry, Multidisciplinary
Long Yang, Yuting Peng, Xuedan Luo, Yi Dan, Jinhua Ye, Yong Zhou, Zhigang Zou
Summary: This review article introduces the development of metal-free polymeric photocatalysts with large pi-conjugated units for various chemical transformations. The focus is on the rational manipulation of pi-conjugation enlargement, charge separation, electronic structures, and band structures in the design of these catalysts. The strategies provide potential avenues to address challenges in catalyst activity, selectivity, and stability for further development in this field.
CHEMICAL SOCIETY REVIEWS
(2021)
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)