Article
Energy & Fuels
Bingyu Lei, Neil Robertson
Summary: A new method for the immobilization of TiO2 mesocrystals has been developed in this study. The immobilized TiO2 possesses high dye pickup capability and optimal electron transport ability, making it suitable for dye-sensitized solar cells.
Article
Chemistry, Multidisciplinary
Xiaofan Xiang, Laiyan Wu, Junjiang Zhu, Jiazhou Li, Xi Liao, Hongcheng Huang, Jiajie Fan, Kangle Lv
Summary: The study successfully degraded sulfadiazine (SDZ), a typical sulfonamides antibiotic, using photocatalytic oxidation technology. It was found that TiO2 nanosheets exhibited better photoreactivity towards SDZ degradation. The research also revealed the possible degradation pathways of SDZ and the promising application prospects of TiO2-NSs in removing SDZ.
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Analytical
Zamaswazi P. Tshabalala, Teboho P. Mokoena, Kenneth T. Hillie, Hendrik C. Swart, David E. Motaung
Summary: The study demonstrated the superior sensitivity of thermally treated sea-urchin like TiO2 hierarchical spheres towards BTEX vapours, particularly toluene and ethylbenzene. The gas sensing performance varied with annealing temperature, with the sensor annealed at 500 degrees C showing temperature-dependent selectivity towards ethylbenzene and the sensor annealed at 700 degrees C exhibiting the highest response towards toluene. The fundamental gas sensing mechanism associated with the detection of BTEX vapour was discussed in detail, highlighting the role of hierarchical structure and annealing temperature in the sensor's performance.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Materials Science, Multidisciplinary
Zhi-Xiong Huang, Xue-Li Zhang, Xin-Xin Zhao, Yong-Li Heng, Ting Wang, Hongbo Geng, Xing-Long Wu
Summary: In this study, hollow P2-Na0.62K0.05Mn0.7Ni0.2Co0.1O2 polyhedra with exposed stable {001} facets and riveted K+ ions were successfully synthesized. The cathode material showed high capacity, air stability, and cycling stability due to the blockage of phase transition and the improved transfer of sodium.
SCIENCE CHINA-MATERIALS
(2023)
Article
Materials Science, Ceramics
Yong Wang, Guoqiang Tan, Shuaijun Feng, Yun Liu, Wenlong Liu, Ao Xia, Huijun Ren, Long Lv
Summary: （English Summary:）
In this study, a (001)TiO2/Ti3C2 MXene heterojunction photocatalyst was prepared using the hydrothermal oxidation method. The formation of TiO2 surface hetero-junctions, Schottky junctions, and surface plasmon resonance effect of plasma Ti3C2 MXene promoted the effective separation of photoexcited electrons and holes. The photocatalyst showed high degradation rates for tetracycline under near infrared light and full spectrum irradiation. This work provides a valuable reference for the design of MXene-based full spectrum photocatalysts.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Qiang Wang, Lei Shen, Tong Xue, Gao Cheng, Cheng Zhi Huang, Hong Jin Fan, Yuan Ping Feng
Summary: By synthesizing single-crystalline TiO2(B) nanobelts with exposed {100} facets, this study successfully enhances Li-storage capacity, providing a practical strategy to increase Li-ion capacity and cycle stability.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Li Sun, Quan Zhou, Jiaheng Mao, Xingyu Ouyang, Zhigang Yuan, Xiaoxiang Song, Wenbang Gong, Shunqi Mei, Wei Xu
Summary: Water pollution can be treated through the photocatalytic reaction of TiO2 or TiO2 compounds. In this study, Fe3O4 and Fe3O4@TiO2 composite photocatalysts were prepared using a solvothermal method, and it was found that Fe3O4@TiO2 can reduce the band gap and maintain a certain proportion of high-energy facet exposure. The photocatalytic degradation experiment demonstrated that Fe3O4@TiO2 can significantly improve the degradation efficiency of Acid Red 73 and achieve higher degradation rate after self-cleaning treatment.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Environmental
Ziwei Liu, Feiqiang He, Limin Zhou, Ying Dai, Zhuyao Li, Yuan Xu, Jianhua Ding
Summary: Fe(II)EDTA regeneration using photocatalytic system with surface-fluorinated anatase TiO2 nanosheets (F-TiO2) was studied. The rate of Fe(III)EDTA and Fe(II)EDTA-NO reduction increased and then decreased under higher pH or F-TiO2 dose. Higher temperature facilitated Fe(II)EDTA regeneration. F-TiO2 showed excellent regeneration efficiency and remained stable after three cycles.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Shaojun Liu, Jingang Zheng, Bo Zhang, Yingqiang Wu, Jinli Liu, Lianfang Yin, Miao Zhan, Yuanhua Xiao, Baigang An, Li Wang, Chengguo Sun, Xiangming He
Summary: A polyol solvothermal method is developed to synthesize LiMn0.7Fe0.3PO4, which can simultaneously increase particle size (decrease specific surface area) and regulate crystal orientation (improve kinetics) to enhance lithium ion diffusion kinetics. Cobalt doping and carbon coating further improve the kinetic properties. Electrochemical measurements show increased Li+ diffusion kinetics for the Fe2+/3+ and Mn2+/3+ redox couple during charging and discharging, respectively. The material exhibits a capacity of 150 mAh g-1 at a 5C rate, and in full batteries, it retains 89.6% capacity over 1000 cycles at a 1C rate.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Qiao Tang, Jiang Wu, Donghoon Kim, Carlos Franco, Anastasia Terzopoulou, Andrea Veciana, Josep Puigmarti-Luis, Xiang-Zhong Chen, Bradley J. Nelson, Salvador Pane
Summary: Piezocatalysis has gained attention for its potential in addressing energy shortages and environmental pollution. However, its efficiency is limited. Researchers successfully synthesized BaTiO3 nanosheets with exposed polar facets to enhance piezocatalytic activity. The nanosheets exhibited superior degradation rate of organic pollutants and hydrogen production capability, providing a new strategy for designing high-performance piezocatalysts.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Energy & Fuels
Fanyu Meng, Shule Zhang, Mingjia Zhang, Qin Zhong
Summary: Synthesis of anatase TiO2 with a high percentage of exposed {001} facets and use of the O-3/H2O2 process for NO oxidation showed excellent performance. The exposed {001} facets improved O-3 adsorption and H2O2 activation, leading to a significant synergistic effect between O-3 and H2O2 in generating radicals that promoted NO oxidation.
Article
Chemistry, Physical
Yang Liu, Tianyu Lei, YaoYao Li, Wei Chen, Yin Hu, Jianwen Huang, Junwei Chu, Chaoyi Yan, Chunyang Wu, Chengtao Yang
Summary: To overcome the issues of low specific capacity, high cyclic capacity loss, and poor cycle performance in lithium-sulfur (Li-S) batteries, a heterojunction structure of multiferroic BiFeO3 anchored on hollow spheric TiO2 coated on Celgard separator is proposed. The multiferroic BiFeO3 provides a spontaneous polarization to trap polysulfides, and the hollow spheric TiO2 divides a large surface area for sulfur expansion and improves the conductivity of sulfur and BiFeO3 simultaneously. As a result, the discharge capacity remained at 754 mAh g-1 with coulombic efficiency over 99.2% and 83.7% retention of the initial specific capacity after 800 cycles at 1.0C.
JOURNAL OF POWER SOURCES
(2023)
Article
Electrochemistry
R. Ben Mammar, S. Boudinar, A. Kadri, L. Hamadou
Summary: The photoreactivity of TiO2 nanotube arrays is closely related to factors such as crystallinity, preferential crystalline orientation, gap states characteristics, and percentage of exposed facets. TiNT with a high percentage of {001} exposed facets significantly improves photoelectrochemical water oxidation and photocatalytic efficiencies.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Kun Jiang, Jin Zhang, Rui Luo, Yingfei Wan, Zengjian Liu, Jinwei Chen
Summary: The study successfully prepared Zn-doped TiO2 nanoparticles with high exposure of the (001) crystal face, extending the responsive wavelength to 600 nm and improving visible light absorption. The surface heterojunction of TiO2, created by co-existing specific facets, greatly enhanced the surface separation efficiency of photogenerated electron and hole pairs, leading to excellent photocatalytic activity.
Article
Chemistry, Physical
Lulu Zhang, Yongqiang Yang, Huaze Zhu, Hui-Ming Cheng, Gang Liu
Summary: Fe-doped NiS2 microcrystals with favorable phase, surface structure and electronic structure were successfully synthesized for efficient electrocatalytic water splitting, demonstrating high performance and stability in OER.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Yanling Yang, Mingwu Tan, Aidan Garcia, Zhaoxia Zhang, Jingdong Lin, Shaolong Wan, Jean-Sabin McEwen, Shuai Wang, Yong Wang
Article
Chemistry, Multidisciplinary
Li Zhang, Lijie Zhang, Yanmei Chen, Yuke Zheng, Jie Guo, Shaolong Wan, Shuai Wang, Chee Keong Ngaw, Jingdong Lin, Yong Wang
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Engineering, Chemical
Lijie Zhang, Yongzhao Wang, Li Zhang, Zixin Chi, Yanling Yang, Zhaoxia Zhang, Bingsen Zhang, Jingdong Lin, Shaolong Wan
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2020)
Article
Chemistry, Multidisciplinary
Yuke Zheng, Li Zhang, Jian Guan, Shuya Qian, Zhaoxia Zhang, Chee Keong Ngaw, Shaolong Wan, Shuai Wang, Jingdong Lin, Yong Wang
Summary: This study synthesized bifunctional Cu-0/Cu2O catalysts for the photothermal conversion of CO2 and H2O, with Cu-0/Cu2O-R2 showing the highest activity. The interface between Cu-0 and Cu2O was found to enhance performance in the directly coupled photothermal catalytic conversion of CO and H2O.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Physical
Peijie Han, Zhaoxia Zhang, Zheng Chen, Jingdong Lin, Shaolong Wan, Yong Wang, Shuai Wang
Summary: Cu-exchanged aluminosilicate zeolites have been studied for selective oxidation of methane, with the study focusing on the effects of Al distribution on the reactivity of the catalysts. Results show that Cu-oxo clusters derived from Al pair sites are more reactive, and the stability of the formed methyl group plays a key role in determining the reactivity of methane oxidation.
Article
Chemistry, Multidisciplinary
Zhaoxia Zhang, Peijie Han, Leisu Li, Xindi Zhang, Xiaojie Cheng, Jingdong Lin, Shaolong Wan, Haifeng Xiong, Yong Wang, Shuai Wang
Summary: The Fenton-type oxidation of lignin derivatives can be carried out with high selectivity for formic acid using a bimetallic Fe-Cu catalyst supported on a ZSM-5 zeolite. The active metal sites in the micropores of the zeolite preferentially adsorb intermediate compounds, suppressing the secondary oxidation of formic acid and resulting in the high selectivity observed.
Article
Chemistry, Multidisciplinary
Yuke Zheng, Zitao Duan, Ruoxuan Liang, Ruiqi Lv, Chong Wang, Zhaoxia Zhang, Shaolong Wan, Shuai Wang, Haifeng Xiong, Chee Keong Ngaw, Jingdong Lin, Yong Wang
Summary: The photocatalytic conversion of CO2 into solar fuels or chemicals is a sustainable solution to address global warming and the energy crisis. This study investigates the effects of morphological control on a Cu/Cu2O-based photocatalyst for CO2 reduction. The results show that the spherical Cu/Cu2O photocatalyst has higher activity compared to the octahedral one, which can be attributed to the multifaceted structure favoring charge separation and the presence of unfavorable (111) facets in the octahedral Cu/Cu2O.
Article
Multidisciplinary Sciences
Mingwu Tan, Yanling Yang, Ying Yang, Jiali Chen, Zhaoxia Zhang, Gang Fu, Jingdong Lin, Shaolong Wan, Shuai Wang, Yong Wang
Summary: The migration of hydrogen atoms from metal particles to a nonreducible oxide support is limited by thermodynamics, but this process can be promoted by small oxygenate molecules, leading to improved hydrodeoxygenation rates. This finding offers a molecule-assisted approach to the design and optimization of multifunctional heterogeneous catalysts on non-reducible oxides.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Ruoxuan Liang, Jiwei Li, Yaowei Wang, Zhaoxia Zhang, Bo Luan, Jianjun Liu, Shuya Qian, Shaolong Wan, Deming Zhao, Haifeng Xiong, Shuai Wang, Jingdong Lin, Yong Wang
Summary: In this study, we found that hexagonal boron nitride (h-BN) demonstrates good selectivity and activity in the oxidative dehydrogenation reaction of n-hexane. Low temperatures and oxygen-rich environments favor the selective hydrogen abstraction from C-H bonds, and the presence of gas phase free radicals improves the reaction rate. Additionally, an anomalous relationship exists between the conversion of n-hexane and reaction temperature.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Chemistry, Multidisciplinary
Yanru Hu, Gengrui Zhang, Lele Liu, ZiXin Chi, Shuai Wang, Jingdong Lin, Haifeng Xiong, Shaolong Wan
Summary: In this study, a Mo, Mg co-modified Sn-beta catalyst was used to catalyze the conversion of glucose and fructose into alkyl lactate at moderate temperatures. The maximum yield of methyl lactate from glucose conversion was 35%, while the maximum yield of ethyl lactate from fructose conversion was 82.8%.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Physical
Danfeng Wu, Sixu Liu, Mingqi Zhong, Jiafei Zhao, Yanling Yang, Yifei Sun, Jingdong Lin, Shaolong Wan, Shuai Wang, Jianyu Huang, Yali Yao, Zhe Li, Haifeng Xiong
Summary: This study investigates the catalytic behavior and stability of Rh/CeO2 single-atom catalysts (SACs) with different Rh loadings under high-temperature reducing conditions. The findings show that Rh single atoms agglomerate to form Rh nanoclusters during syngas conversion, and the Rh-iso/Rh-NC ratio has a relationship with the ethanol selectivity and reaction rate. The combination of Rh single atoms and Rh nanoclusters is beneficial to the ethanol selectivity and reaction rate.
Article
Chemistry, Multidisciplinary
Peijie Han, Ran Yan, Yuqing Wei, Leisu Li, Jinsong Luo, Yang Pan, Binju Wang, Jingdong Lin, Shaolong Wan, Haifeng Xiong, Yong Wang, Shuai Wang
Summary: Boron-based nonmetallic materials are promising catalysts for selective oxidation of light alkanes. Hexagonal BN exhibits high selectivities and requires an induction period during methane oxidation. It acts as a radical generator, triggering gas-phase radical reactions, in contrast to surface reactions on B2O3/Al2O3 catalysts. The methyl radical is identified as the primary reactive species, and the moderate H-abstraction ability of CH3· radicals contributes to the excellent anti-overoxidation ability of boron-based catalysts.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Jinshu Tian, Gregory Collinge, Simuck F. F. Yuk, Jindong Lin, Vassiliki-Alexandra Glezakou, Mal-Soon Lee, Yong Wang, Roger Rousseau
Summary: Through density functional theory calculations, in situ Raman characterization, and microkinetic modeling, it is found that dimerized di-coordinated boron sites are the active species for O-2 activation and peroxy-like structures are responsible for propane activation. The formation of adsorbed C3H7* radicals was found to be the main rate-controlling step. These findings provide significant insights into the mechanisms of oxidative dehydrogenation of propane on boron-based catalysts.
Article
Engineering, Chemical
Gengrui Zhang, Yan Li, Yong Chen, Xinning Hao, Xianhua Zhang, Shuai Wang, Jingdong Lin, Yong Wang, Shaolong Wan
Summary: The study designs and prepares a nickel-based syngas methanation catalyst with superior thermal stability, using a special ZnAl2O4 spinel support. The catalyst shows excellent reactivity and stability. The work elucidates the critical role and intrinsic mechanism of the spinel support for the construction of the desired methanation catalysts.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Lina Zhang, Qianqian Bao, Bangjie Zhang, Yuanbao Zhang, Shaolong Wan, Shuai Wang, Jingdong Lin, Haifeng Xiong, Donghai Mei, Yong Wang
Summary: The single-atom Pt-1/CeO2 catalyst exhibits remarkable activity for room-temperature formaldehyde oxidation, with the active OlatticeH site on CeO2 near Pt2+ playing a key role. This study provides important insights for the design and synthesis of Pt catalysts for room-temperature HCHO oxidation.
