Article
Chemistry, Physical
Can Li, Meihong Chen, Yuhan Xie, Hongqiang Wang, Lichao Jia
Summary: An ultra-thin manganese oxide (MnOx) was used as a co-catalyst to modify the surface of bismuth vanadate (BVO) photoanode, resulting in significantly improved surface charge transport efficiency. The surface charge transport efficiency of the modified BVO photoanode was further enhanced by applying Ar plasma treatment. These findings provide new insights for designing BVO photoanodes with superior photoelectrochemical (PEC) performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Mi Gyoung Lee, Jin Wook Yang, Hoonkee Park, Cheon Woo Moon, Dinsefa M. Andoshe, Jongseong Park, Chang-Ki Moon, Tae Hyung Lee, Kyoung Soon Choi, Woo Seok Cheon, Jang-Joo Kim, Ho Won Jang
Summary: In this study, a crystal facet engineering approach was used to control the band structures of titanium dioxide nanostructures as hole blocking layers for bismuth vanadate. The results showed that the BiVO4/TiO2 heterostructure with nanoflowers exhibited significantly higher photocurrent density compared to nanorods. The enhancement was attributed to reduced charge recombination due to the formation of type II band alignment between BiVO4 nanodots and TiO2 nanoflowers. This work not only provides new insights into the interplay between crystal facets and band structures but also advances the design of highly efficient photoelectrodes.
NANO-MICRO LETTERS
(2022)
Article
Engineering, Environmental
Xubo Huang, Min Chen, Yaru Wang, Chen Chen, Yiming Xu
Summary: The study found that modifying BiV with poorly crystallized sFe and sNi resulted in higher activity for phenol oxidation and O2 reduction in aqueous solution under light. In sFe/sNi/BiV, there is a mutual promotion between the sNi-mediated electron transfer and the sFe-mediated hole transfer, leading to an improved efficiency of charge separation for O2 reduction and phenol oxidation.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Green & Sustainable Science & Technology
C-Y. Chen, H. Pai, H-M. Chen, S. Yougbare, S. Husain, Y-C. Hsiao, L-Y. Lin
Summary: Bismuth vanadate (BiVO4) is a promising photocatalyst for water oxidation, but its electrochemical performance is limited. Incorporating foreign materials into BiVO4 can improve its performance. In this study, three metal organic frameworks or their derivatives were coupled with BiVO4 as catalysts for water oxidation. By observing optical properties and electrochemical curves, the behavior of foreign materials can be distinguished. The MIL/W:BVO showed better heterojunction characteristics and charge transfer ability.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Materials Science, Multidisciplinary
Fernando C. Soares, Jessica C. de Almeida, Rafaella H. Koga, Douglas M. da Silva Del Duque, Gelson T. S. T. da Silva, Caue Ribeiro, Vagner R. de Mendonca
Summary: This paper studied the synthesis of a heterostructure consisting of BiVO4 and TiO2 for photocatalytic application. The heterostructures were synthesized using the building blocks technique with different TiO2/BiVO4 molar ratios under hydrothermal treatment. The as-synthesized samples exhibited higher photocatalytic efficiency due to the separation of the photogenerated charges.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Engineering, Environmental
Huimin Xu, Weiqiang Fan, Yong Zhao, Biyi Chen, Yang Gao, Xue Chen, Dongbo Xu, Weidong Shi
Summary: The decoration of FeBi co-catalyst on the surface of BiVO4 significantly enhances the PEC water splitting performance, offering a new route for efficient solar-to-hydrogen conversion. The FeBi/E-BiVO4 heterostructure exposed more active sites and rich oxygen vacancies, leading to improved charges transfer and separation efficiencies, contributing to the increased ABPE up to 1.35%.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Laura Montanes, Camilo A. Mesa, Ana Gutierrez-Blanco, Christian Robles, Beatriz Julian-Lopez, Sixto Gimenez
Summary: A simple synthesis method was developed to prepare nanostructured BiVO4 photoanodes, which showed competitive photocurrent performance in water oxidation experiments, providing a new material option for the design of efficient photoelectrochemical devices.
Article
Chemistry, Multidisciplinary
Bing He, Songru Jia, Mingyang Zhao, Yang Wang, Tao Chen, Shiqiang Zhao, Zhen Li, Zhiqun Lin, Yanli Zhao, Xueqin Liu
Summary: The performance of photoanodes in PEC water splitting can be significantly enhanced by sandwiching a photothermal Co3O4 layer between a BiVO4 film and an FeOOH/NiOOH electrocatalyst sheet. This strategy improves light absorption, charge transfer, and water oxidation kinetics simultaneously, leading to superior photocurrent density and efficiency. The use of a variety of metal sulfides, nitrides, and phosphides as heaters can also yield high-performance photoanodes.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Kexin Ren, Jiayi Zhou, Zihao Wu, Qi Sun, Limin Qi
Summary: In this study, a unique BiVO4(BVO)/BiOCl nanobowl photoanode with dual heterojunctions was fabricated, which effectively enhanced light absorption and reduced carrier diffusion path. The dual heterojunctions facilitated electron transfer and bulk charge separation, resulting in a remarkable photocurrent density and excellent bulk charge separation efficiency. This work highlights the potential of integrating dual heterojunctions and morphology engineering in high-performance photoelectrodes for efficient solar conversion.
Article
Chemistry, Physical
Songcan Wang, Boyan Liu, Xin Wang, Yingjuan Zhang, Wei Huang
Summary: By designing a nanoporous MoO3-x/BiVO4 heterojunction photoanode, we have improved the efficiency of charge separation in bismuth vanadate, resulting in significantly enhanced photoelectrochemical performance. Stable photoelectrochemical water splitting with high photocurrent density and applied bias photon-to-current efficiency is achieved by depositing dual oxygen evolution cocatalysts.
Article
Chemistry, Multidisciplinary
Chunlian Hu, Chunjiang Xu, Xiaohu Li, Bonan Li, Xiaoshuo Ma, Jiayu Zhu, Congzhao Dong, Yong Ding
Summary: In this study, a novel molecular cocatalyst, noble-metal-free polyoxometalate (Ni3POM), was incorporated into a typical FeOOH/BiVO4 composite photoanode, greatly enhancing the photoelectrochemical water splitting performance. The Ni3POM/FeOOH/BiVO4 photoanode displayed a photocurrent density of 5.2 mA/cm2 at 1.23 V vs RHE, achieving a 4-fold enhancement compared to the pristine photoanode. The photoanode also exhibited 99% photocurrent density retention after a 1-hour stability test at 1.23 V vs RHE, indicating improved PEC stability. Additionally, a 1.1% ABPE value was achieved at 0.8 V vs RHE.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Engineering, Environmental
Yoo Jae Jeong, Sung Won Hwang, Settasit Chaikasetsin, Hyun Soo Han, In Sun Cho
Summary: A novel dual-textured BiVO4 / Sb:SnO2 heterostructure was successfully synthesized as a photoanode for photoelectrochemical water splitting. The synthesized heterostructure exhibited a considerable enhancement in charge collection performance, resulting in a photocurrent density approximately four times higher than a single-textured heterostructure. This study provides new insights into the design of efficient photoelectrodes.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Lixia Pan, Jiazhe Wu, Xiaoya Xu, Fei Lv, Yubin Chen, Liejin Guo
Summary: Photoelectrochemical (PEC) water splitting is a promising way to convert solar energy into hydrogen energy. This study investigated the effect of concentrated light and reaction temperature on the PEC performance of CoPi/Mo:BiVO4 photoanode, and found that concentrated light can effectively enhance the photocurrent density, with the best performance achieved at high temperature.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Review
Chemistry, Multidisciplinary
Lina Wang, Xiaoqiang Shi, Yuefa Jia, Hongfei Cheng, Lei Wang, Qizhao Wang
Summary: This review summarizes strategies for improving the photocurrent density and hydrogen production of BiVO4 materials through PEC techniques in the last three years, aiming to serve as a guideline for fabricating highly efficient BiVO4-based materials for PEC water splitting.
CHINESE CHEMICAL LETTERS
(2021)
Review
Chemistry, Physical
Seyedsina Hejazi, Manuela S. Killian, Anca Mazare, Shiva Mohajernia
Summary: The single-atom decoration of TiO2 nanostructures is a promising approach in photocatalytic water splitting, as it helps overcome the scarcity and high cost of noble metals and advances their application.
Review
Chemistry, Multidisciplinary
Jiang-Yang Shao, Dongmei Li, Jiangjian Shi, Chuang Ma, Yousheng Wang, Xiaomin Liu, Xianyuan Jiang, Mengmeng Hao, Luozheng Zhang, Chang Liu, Yiting Jiang, Zhenhan Wang, Yu-Wu Zhong, Shengzhong Frank Liu, Yaohua Mai, Yongsheng Liu, Yixin Zhao, Zhijun Ning, Lianzhou Wang, Baomin Xu, Lei Meng, Zuqiang Bian, Ziyi Ge, Xiaowei Zhan, Jingbi You, Yongfang Li, Qingbo Meng
Summary: This review provides a summary of the recent major advances in the research of perovskite solar cells from a material science perspective. It covers topics such as different types of perovskite materials, defects, charge transport materials, counter electrodes, and interfacial materials. It also discusses the limitations and future prospects for the development of perovskite solar cells.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Haijuan Zhang, Taiyang Zhang, Yong Wang, Yuetian Chen, Yixin Zhao, Jie Chen
Summary: Revealing the impact of structural disorder in lead halide perovskites on photocarrier dynamics, this study found that in the disordered beta phase, photoinduced carriers recombine almost twice slower and diffuse 20% faster compared to the ordered gamma phase. However, within the same phase, carrier diffusion and recombination show no significant difference for different A-site mobilities with similar PbX6 orientations. This confirms the effective influence of lattice disorder on the carrier dynamics, highlighting the importance of the Pb-X sublattice over A-site cations for future lead halide perovskite design and applications.
MATERIALS HORIZONS
(2023)
Article
Multidisciplinary Sciences
Yuetian Chen, Xingtao Wang, Yao Wang, Xiaomin Liu, Yanfeng Miao, Yixin Zhao
Summary: In this work, in-situ three-dimension-to-zero-dimension (3D-to-0D) phase transformation and surface reconstruction on CsPbI3 film is achieved by a functional organic cation, benzyldodecyldimethylammonium (BDA). The BDA-CsPbI3 films exhibit reduced non-radiative recombination and promoted charge transfer, leading to inorganic perovskite solar cells with a high power conversion efficiency of 20.63% and good operational stability.
Article
Chemistry, Multidisciplinary
Yao Wang, Menglei Feng, Haoran Chen, Meng Ren, Haifei Wang, Yanfeng Miao, Yuetian Chen, Yixin Zhao
Summary: In this study, highly crystallized Cl-doped SnO2 nanocrystals that can form stable aqueous dispersion without any stabilizer were reported, facilitating the fabrication of perovskite solar cells with satisfactory performance. The Cl-doped SnO2 nanocrystals effectively suppress the energy barrier and reduce the trap state density at the interface between perovskite and the electron transport layer.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Zhelun Pan, Ting Zhang, Xufang Qian, Yixin Zhao
Summary: In this study, the fast transformation mechanism of Cr (VI) oxyanions on CDs with structural defects and surface oxygen functional groups was investigated. The electrons transferred from CDs to reduce Cr (VI) were calculated to be 0.07-0.1 mmol g-1 in 20 min. The reduction kinetics rate driven by carbon defects is approximately 3-5 times faster than that driven by surface oxygen-containing functional groups. Metal cations (K+, Na+, Ca2+, Mg2+) in water matrix showed negligible effect on the reduction of Cr (VI), while iron ions chelate with CDs to form a CD-COOFe complex structure, promoting diffusion and electron transfer simultaneously, enhancing the electron transfer rate constant from 6.94 x 10-3 to 10.00 x 10-3 cm s-1.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Jianying Wang, Xin Li, Ting Zhang, Xufang Qian, Tianfu Wang, Yixin Zhao
Summary: The indiscriminate disposal and inadequate treatment of plastic wastes have led to a severe global environmental and ecological crisis. Economically viable and energy-efficient technologies, such as photo-/electro-catalytic technologies driven by renewable energy, have been developed to transform plastic wastes into valued chemicals and fuels. This review summarizes the recent progress on catalytic systems for the selective cleavage of chemical bonds in plastic polymer chains and discusses the correlation between catalyst features and catalytic performance.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Chemical
Xin Li, Jianying Wang, Ting Zhang, Sen Yang, Mingze Sun, Xufang Qian, Tianfu Wang, Yixin Zhao
Summary: The damaging effects of plastic wastes on the ecosystem call for the worldwide concern on rational strategies for plastic recycling. Catalytic technology provides an efficient and selective approach for recycling plastic wastes. This review summarizes recent progress in transforming plastic wastes into valued products using different sustainable catalytic technologies under mild conditions. Thermocatalysis, photocatalysis, electrocatalysis, and other emerging integrated catalytic technologies are introduced and discussed. The goal of this review is to inspire innovations for the sustainable and eco-friendly valorization of plastic waste resources to create a low-emission circular economy.
CHEMICAL ENGINEERING SCIENCE
(2023)
Editorial Material
Chemistry, Physical
Yuetian Chen, Yixin Zhao
Article
Green & Sustainable Science & Technology
Yanfeng Miao, Meng Ren, Yuetian Chen, Haifei Wang, Haoran Chen, Xiaomin Liu, Tianfu Wang, Yixin Zhao
Summary: In this study, a green solvent formula was developed for scalable processing of perovskite solar cells. The use of eco-friendly green solvents allowed for the stable fabrication of high-quality FA PbI3 perovskite ink, overcoming the instability issue of conventional organic solvents. This work opens a sustainable pathway towards the practical application of perovskite solar cells.
NATURE SUSTAINABILITY
(2023)
Article
Chemistry, Multidisciplinary
Yao Li, Siyuan Liu, Runlu Liu, Jian Pan, Xin Li, Jianyu Zhang, Xiaoxiao Zhang, Yixin Zhao, Dawei Wang, Hengdao Quan, Shenmin Zhu
Summary: This study resolves the issue of carrier recombination on the dual surfaces of the m-BiVO4 component in water oxidation by constructing an m-BiVO4/carbon nitride (C3N4) Z-scheme heterostructure based on the m-BiVO4/reduced graphene oxide (rGO) Mott-Schottky heterostructure. The rGO effectively accumulates photogenerated electrons from m-BiVO4 and facilitates their diffusion through a highly conductive carbon network. The Z-scheme electron transfer at the heterointerface of m-BiVO4/C3N4 leads to spatial separation of electron-hole pairs and maintains strong redox potentials, resulting in significantly improved O-2 yield and the generation of center dot OH and center dot O-2(-) radicals.
NANOSCALE ADVANCES
(2023)
Article
Chemistry, Multidisciplinary
Liwen Ren, Sen Yang, Jianying Wang, Ting Zhang, Xin Li, Tianfu Wang, Yixin Zhao
Summary: The use of bio-based plastics is a potential solution to mitigate the negative impact of energy crisis and climate change caused by non-renewable fossil resources. Polyethylene furanoate (PEF) plastics, as a sustainable and biodegradable alternative to polyethylene terephthalate (PET) plastics, still face challenges including long degradation time and carbon resource waste. This study demonstrates the use of cobalt-based oxide catalysts as electrocatalysts for the selective oxidation of PEF hydrolysates, providing a new strategy to produce valuable chemicals and hydrogen energy from waste PEF plastics.
REACTION CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Applied
Xin Li, Jianying Wang, Mingze Sun, Xufang Qian, Yixin Zhao
Summary: The photoelectrochemical (PEC) technology offers a promising solution for transforming PET plastic wastes into valuable chemicals. In this study, an efficient and stable photoanode was developed using interfacial modification strategy, which exhibited high PEC activity for the oxidation of PET hydrolysate to formic acid. This work proposes an effective method to promote the PEC activity and enhance the long-term stability of photoelectrodes for upcycling PET plastic wastes.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Ting Zhang, Zhelun Pan, Jianying Wang, Xufang Qian, Hiromi Yamashita, Zhenfeng Bian, Yixin Zhao
Summary: In this study, a novel carbon dot catalyst CD-COOFeIII was developed, which can efficiently generate hydroxyl radicals with an activity 105 times higher than the Fe3+/H2O2 system. Real-time infrared spectroscopy and kinetic isotope effects measurement revealed the importance of high electron-transfer rate constants of CD defects and their self-regulated proton-transfer behavior. The CD-COOFeIII/H2O2 system showed at least 51 times higher efficiency in antibiotics removal compared to the Fe3+/H2O2 system under equivalent conditions.
Article
Chemistry, Physical
Jingyi Lin, Xin Li, Zhiliang Wang, Runlu Liu, Hui Pan, Yixin Zhao, Lingti Kong, Yao Li, Shenmin Zhu, Lianzhou Wang
Summary: This study selected low-cost 1,3,5-benzenetricarboxylic acid as a surface passivator for bismuth vanadate photoanodes, improving their performance and charge transfer efficiency through interfacial chemical bonding.
Article
Chemistry, Multidisciplinary
Yanfeng Miao, Meng Ren, Haifei Wang, Lei Lu, Xiaomin Liu, Yuetian Chen, Yixin Zhao
Summary: Functional organic cation based surface termination on perovskite has the advantage of defect passivation and the prevention of intercalation into 3D perovskite. However, controlling the surface termination on organic-inorganic hybrid perovskite is challenging. In this study, we used a novel benzyltrimethylammonium (BTA) functional cation with steric hindrance to effectively surface terminate methylammonium lead triiodide (MAPbI3) perovskite, achieving a wide processing window and enhanced stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
