Article
Chemistry, Physical
Feng Shi, Chao Xing, Xuemei Wang
Summary: TiO2/MoSe2 composite photocatalysts were prepared by a solvothermal method to enhance catalytic activity. Increasing MoSe2 loading improved carrier utilization in TiO2, leading to higher hydrogen production rate with a quantum efficiency of about 36.8%.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Environmental Sciences
Xiao Qu, Jianbin Lin, Jai Prakash Chaudhary, Bianjing Sun, Feng Wei, Mengmeng Fan, Dongping Sun
Summary: This study demonstrates a solvothermal method for synthesizing defect-rich TiO2 nanosheets through copper doping, which exhibit high specific surface area and excellent visible light response. The nanosheets were found to effectively degrade two model pollutants under visible light irradiation. Additionally, the prepared catalysts showed good repeatability and applicability, providing a reasonable design for water remediation.
Article
Chemistry, Inorganic & Nuclear
Zhenpu Shi, Yunqi Huang, Juhong Xu, Yudong Pang, Lan Wang, Wanli Zhao, Hongyun Yue, Zongxian Yang, Shuting Yang, Yanhong Yin
Summary: In this study, three-dimensional hierarchical porous carbon materials co-doped with B, N, and P and uniformly dispersed with CoP nanoparticles were synthesized and used as the coating material for the PE separator. Both experimental and theoretical calculations demonstrated that the adsorption capacity of the composite material for LiPS was significantly enhanced after introducing B atoms. As a result, LSBs assembled with the CoP@BNPC/PE separator exhibited excellent long-term stability and superior rate performance. This work further proves that a modified separator is an effective strategy for promoting the commercialization of LSBs.
DALTON TRANSACTIONS
(2023)
Article
Engineering, Environmental
Yuting Wang, Gancheng Zuo, Jijie Kong, Yang Guo, Zeyu Xian, Yuxuan Dai, Junjie Wang, Tingting Gong, Cheng Sun, Qiming Xian
Summary: Developing sheet-on-sheet (2D/2D) heterostructure with built-in electric field (BIEF) effectively enhances the performance of photocatalysts for degrading emerging contaminants. The TiO2/Bi2MoO6 photocatalyst demonstrated higher efficiency in photocatalytic degradation of amoxicillin compared to individual TiO2 and Bi2MoO6, showing the potential for unique 2D/2D heterostructure photocatalysts in pollutant removal.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Physical
Qing Han, Shiwen Du, Yumin Wang, Ziwu Han, Hongjing Li, Hu Xu, Pengfei Fang
Summary: In this work, few-layered MoSe2 nanosheets were grown vertically on TiO2 nanorods to synthesize a direct Z-scheme heterojunction, exhibiting efficient piezocatalytic and piezo-photocatalytic performance. The MoSe2/TNr heterostructure showed superior piezoelectric degradation efficiency and a piezo-photoelectric synergistic effect. This study broadens the application prospects of piezocatalysis and piezo-photocatalysis in renewable energy harvesting and water purification.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Xinya Kuang, Xiyu Deng, Yiwen Ma, Jiyang Zeng, Baoye Zi, Yumin Zhang, Jin Zhang, Bin Xiao, Qingju Liu
Summary: This study successfully prepared Ti3+-doped TiO2 by utilizing the photocatalytic water splitting properties of TiO2. The presence of Ti3+ significantly reduced the recombination rate of photogenerated carriers and resulted in a higher hydrogen production rate compared to pristine TiO2. Furthermore, a type II heterojunction TiO2/UiO-66-NH2 was constructed to enhance the self-activation effect of TiO2 and improve the photocatalytic hydrogen evolution activity.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Jun Hu, Aijing Ma, Xuan Wu, Yilin Yin, Dan Liu, Alex T. T. Kuvarega, Bhekie B. B. Mamba, Jianzhou Gui
Summary: A Mn3O4/CuOx heterostructure supported on copper foil (CF) was designed for electrocatalytic nitrate reduction to ammonia. The selectivity and Faraday efficiency of ammonia were 96.79% and 86.55%, respectively. Multiple characterizations showed that Mn3O4/CuOx/CF exhibited faster charge transfer and generated more electron-deficient Mn sites, electron-rich Cu sites, and oxygen vacancies, which enhanced the catalytic activity. This study may provide a new approach for constructing heterostructures as electrocatalysts for nitrate reduction to ammonia.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Kadhim Al-Attafi, Hamza A. Mezher, Ali Faraj Hammadi, Amar Al-Keisy, Sameh Hamzawy, Hamzeh Qutaish, Jung Ho Kim
Summary: Hierarchical aggregates of anatase TiO2 nanoribbons/nanosheets (TiO2-NR) and anatase TiO2 nanoparticles (TiO2-NP) were synthesized using a solvothermal reaction. TiO2-NR exhibited a three-dimensional hierarchical structure, while TiO2-NP had a nanoparticulate structure. Compared to commercial TiO2 (P25), both TiO2-NR and TiO2-NP showed higher photocatalytic and photocurrent performance. The solvothermal synthesis method used in this study offers potential for various energy harvesting applications.
Article
Engineering, Environmental
Degui Zou, Jing Liu, Jingkai Zhou, Junying Weng, Wenting Wang, Xingyu Liu, Pengfei Zhou, Hailin Cong
Summary: A novel MnO/TiO2@N-C nanocomposite is proposed to improve the electrochemical sodium storage of TiO2-based materials by combining heterostructure engineering and nanostructure designing, which enhances Na+ transfer and adsorption, provides more active interfacial sites, and promotes electric conductivity. The nanocomposite exhibits high reversible discharge capacity, superior rate capability, exceptional cycling performance, and promising energy density, making it significant for the practical applications of sodium-ion batteries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Man Huang, Baojuan Xi, Nianxiang Shi, Jinkui Feng, Yitai Qian, Dongfeng Xue, Shenglin Xiong
Summary: This study presents a novel anode material with heterostructures made of Bi/TiO2 quantum dots embedded into N-doped carbon nanosheets. The integrated design greatly reduces the migration energy barrier of Na+, promotes electron/Na+ transportation, and enhances the electric conductivity and electrochemical reactivity. The Bi/TiO2 HQDs subset of NC hybrid nanosheets show excellent sodium storage properties with high reversible capacity, high rate capability, and long cycle life.
Article
Engineering, Electrical & Electronic
N. R. Khalid, Ansa Batool, Faisal Ali, Ghulam Nabi, M. B. Tahir, M. Rafique
Summary: Researchers have developed Mo-doped Co3O4 porous nanostructures with outstanding supercapacitive performance, showing high specific capacitance, rate capability, and capacitance retention. These materials hold ideal promise for supercapacitor application due to the development of nanostructures with high surface-to-volume ratio, enhanced specific capacitance, and good conductivities achieved by appropriate molybdenum content.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Ting-Han Lin, Yin-Hsuan Chang, Kuo-Ping Chiang, Jer-Chyi Wang, Ming-Chung Wu
Summary: The study explores the synthesis of a 1D/2D heterostructure catalyst by incorporating graphitic carbon nitride nanosheets with high crystalline titanium dioxide nanofibers for photocatalytic water splitting. Utilizing the low bandgap of the 2D g-C3N4 nanosheets as a sensitizer improves the specific surface area and photoresponse in the visible region. The heterojunction formation between TiO2 and g-C3N4 enables superior separation of electron-hole pairs, leading to enhanced photocatalytic hydrogen production rates.
Article
Chemistry, Multidisciplinary
Rui Wang, Kexin Zhang, Xin Zhong, Fubin Jiang
Summary: This work reports the preparation of LaCoO3/C3N5 nanosheets and the use of LaCoO3 instead of precious metals to enhance photocatalytic hydrogen production activity. Various characterization techniques confirmed the formation of heterostructures and interface interactions between LaCoO3 nanoparticles and C3N5 nanosheets. The LaCoO3/C3N5 photocatalyst showed the highest photocatalytic activity in the water split test. This study not only designs an inexpensive and efficient photocatalytic system, but also provides ideas for constructing new material photocatalytic systems.
Article
Chemistry, Analytical
Jin Li, Jianbiao Xian, Wanjing Wang, Kai Cheng, Min Zeng, Aihua Zhang, Sujuan Wu, Xingsen Gao, Xubing Lu, Jun-Ming Liu
Summary: The sensor based on Ru-doped porous hollow SnO2 nanotubes exhibits excellent sensing performance towards acetone, with a fast response time and high selectivity. The enhanced gas sensing properties are attributed to the larger specific surface area, ultra-fine grain size of SnO2, and the catalytic effect of RuO2. This research suggests the potential of Ru-doped SnO2 nanotubes as highly reliable and high-performance sensing layers for acetone gas sensors.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Engineering, Electrical & Electronic
Chao Cai, Meiyu Song, Qixiang Ou, Jianmei Li, Changsheng An
Summary: This study explores an efficient method to improve the performance of alloy-type materials in lithium batteries, by constructing a heterostructure between TiO2-B and SnS2 to enhance electrode stability and cycle performance.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Inorganic & Nuclear
Mahsa Saberian, Alireza Nezamzadeh-Ejhieh
Summary: CuO was successfully supported on clinoptilolite nanoparticles (NCP) via ion exchange and calcination, forming CuO-NCP photocatalysts. CuO-NCP exhibited enhanced photocatalytic activity towards tetracycline (TC), and the best degradation performance was achieved under optimal conditions (25 ppm TC solution, pH 4.8, and 0.5 g/L catalyst).
SOLID STATE SCIENCES
(2024)
