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
Nanoscience & Nanotechnology
Canjun Liu, Linmei Chen, Xin Su, Shu Chen, Jie Zhang, Heping Yang, Yong Pei
Summary: Constructing a heterojunction interface in TiO2/BiVO4 photoanode significantly improves its PEC performance, with the in situ transformation method exhibiting better results than the soaking-calcining method. The faster electron transfer rate in the heterojunction interface and higher Fermi energy level on the BiVO4-202 surface contribute to the enhanced photocurrent density under visible light irradiation without a cocatalyst.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Xiaoqian Huang, Ruikang Zhang, Xiaoru Gao, Borong Yu, Yuanzhe Gao, Zhan-gang Han
Summary: TiO2-R/A homojunction photoanode, fabricated by in situ growth of anatase TiO2 on TiO2-R surface, displays higher photocurrent density compared to TiO2-R/R photoanode. The intense band bending and enhanced surface area of TiO2-R/A homojunction facilitate charge separation and transmission, providing novel insights for designing and fabricating semiconductor photoanodes for highly efficient photocatalytic reactions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Dan Yin, Xingming Ning, Qi Zhang, Peiyao Du, Xiaoquan Lu
Summary: Researchers successfully constructed an integrated photoanode by modifying BiVO4 with In2O3 layer and further decorating amorphous FeNi hydroxides, improving its performance significantly. The BV/In/FeNi photoanode showed a remarkable increase in photocurrent density and water oxidation reaction kinetics. This improvement was attributed to the formation of BV/In heterojunction inhibiting charge recombination and the decoration of FeNi facilitating the water oxidation reaction kinetics and hole transfer.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Sutripto Majumder, Minji Gu, Ki Hyeon Kim
Summary: A novel strategy was developed to fabricate a BiVO4/Bi2S3/NiCoO2 photoelectrode, demonstrating significantly higher photocurrent density and stability compared to bare BiVO4. The importance of NiCoO2 and Bi2S3 in enhancing photoelectrochemical water splitting performance was emphasized through various electrochemical studies.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Environmental
Hewei Yuan, Yaozhong Zhang, Yanjie Su, Nantao Hu, Jianhua Yang, Min Zeng, Zhi Yang, Yafei Zhang
Summary: This study introduces a novel Type II heterojunction consisting of BiVO4 thin film and diamond-like carbon (DLC) to the PEC system, which significantly enhances the PEC water-splitting activity. Compared to the pure BiVO4, the BiVO4/DLC heterojunction exhibits increased photocurrent density and improved stability. The enhancement in PEC performance is attributed to the Type II heterojunction photoanodes that promote carrier mobility and reduce the recombination rate of electron-hole pairs. Furthermore, the sp2 carbon phase in DLC acts as a conductive channel, while the sp3 carbon phase provides stable support and passivation effect, leading to an enhancement in both PEC water splitting performance and long-time stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Shankara S. Kalanur, Young Jae Lee, Hyungtak Seo
Summary: The study introduces a versatile BiVO4 thin film synthesis strategy that allows for morphology tunability, feasibility of doping, and heterojunction formation in a single step. This strategy can be extended to fabricate different nanostructures by changing capping agents, and has shown the feasibility of Al doping and heterojunction formation with WO3 nanostructure for enhanced PEC activity. The proposed strategy could be exploited using new capping agents and dopants for simultaneously obtaining doped BiVO4 in heterojunction systems with unique morphology.
APPLIED SURFACE SCIENCE
(2021)
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, Physical
Shouli Bai, Ke Tian, Jonathan Chenhui Meng, Yingying Zhao, Jianhua Sun, Kewei Zhang, Yongjun Feng, Ruixian Luo, Dianqing Li, Aifan Chen
Summary: A ternary photoanode of SnO2/BiVO4/rGO was fabricated and it showed significantly improved photocurrent density and IPCE compared to a BiVO4 photoanode, mainly due to the formation of n-n heterojunctions and decoration of rGO which enhanced the absorption of light and electron transfer efficiency.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Chemistry, Multidisciplinary
Mayur A. Gaikwad, Umesh P. Suryawanshi, Uma V. Ghorpade, Jun Sung Jang, Mahesh P. Suryawanshi, Jin Hyeok Kim
Summary: This review focuses on the emerging surface, bulk, and interface engineering strategies on BiVO4 photoanode, including surface functionalization, nanostructuring, defect engineering, doping, and heterostructuring to enhance its performance and stability. The challenges and future outlooks for research progress in this area are also discussed.
Review
Chemistry, Physical
Khuzaimah Arifin, Rozan Mohamad Yunus, Lorna Jeffery Minggu, Mohammad B. Kassim
Summary: Photoelectrochemical water splitting is an ideal method for clean hydrogen production, but developing photoelectrodes that meet the criteria remains a challenge for commercialization. Titanium dioxide nanotubes, with their one-dimensional structure, have a relatively wide bandgap, limiting light utilization. Various approaches, such as surface modification and band structure modification, have been developed to improve TiO2 nanotubes, achieving high photocurrent density and stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Yuhei Taga, Zhenhua Pan, Kenji Katayama, Woon Yong Sohn
Summary: Developing an efficient photoanode is crucial for sustainable hydrogen energy production. By constructing a solid-state junction and applying an inverse opal structure, a BiVO4/WO3-IO photoanode was developed and demonstrated better performance in photoelectrochemical water splitting compared to a bare WO3 photoanode. This successful combination provides a promising approach for utilizing solar energy in visible-light-responsive photoanodes.
ACS APPLIED ENERGY MATERIALS
(2022)
Review
Chemistry, Physical
Mohsin Ali Marwat, Muhammad Humayun, Muhammad Waqas Afridi, Haibo Zhang, Muhammad Ramzan Abdul Karim, Malik Ashtar, Muhammad Usman, Saad Waqar, Habib Ullah, Chundong Wang, Wei Luo
Summary: This review provides a detailed explanation of the basic mechanism of PEC water splitting using electrocatalysts, and highlights recent advancements in the design, fabrication, and modification of high-efficiency electrocatalysts for energy conversion.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Eunoak Park, Santosh S. Patil, Hyeonkwon Lee, Vijay S. Kumbhar, Kiyoung Lee
Summary: A novel photoanode material, tungsten oxide/bismuth vanadate/titanium oxide, has been synthesized through a combined hydrothermal-spin coating strategy, showing enhanced photoelectrochemical performance, decreased water oxidation kinetics, and improved photostability. The surface postmodification with a nanometer-thick layer of single-crystalline TiO2 significantly improves the stability, quantum efficiency, and electron transfer process, indicating a potential enhancement in photoelectrocatalytic activity.
Article
Energy & Fuels
Ziwei Zhao, Kaiyi Chen, Jingwei Huang, Lei Wang, Houde She, Qizhao Wang
Summary: In this study, nickel fluoride (NiF2) was successfully applied to enhance the performance of a pure BiVO4 photoanode, increasing the photocurrent density by approximately 180% compared to the pristine BiVO4. The synergy of NiF2 and BiVO4 significantly improved the photon-to-current conversion efficiency, charge injection, separation efficiency, and hydrogen generation of the composite photoanode, providing valuable guidance for the fabrication of fluoride-based compound/semiconductor composite photoanode systems.
FRONTIERS IN ENERGY
(2021)
Article
Engineering, Environmental
Ligang Xia, Feiyang Chen, Jinhua Li, Shuai Chen, Jing Bai, Tingsheng Zhou, Linsen Li, Qunjie Xu, Baoxue Zhou
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Engineering, Environmental
Tingsheng Zhou, Shuai Chen, Jiachen Wang, Yan Zhang, Jinhua Li, Jing Bai, Baoxue Zhou
Summary: An excellent CQDs/FeOOH/BiVO4 photoanode was designed to address the issues of severe bulk and surface charge recombination, sluggish OER kinetics, and narrow visible light harvesting in BiVO4. The photoanode showed dramatically enhanced photocurrent and IPCE, attributed to the synergistic catalysis of CQDs and FeOOH, suppression of bulk charge recombination by CQDs/BiVO4 heterojunction, and increased light harvesting by CQDs.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Jiachen Wang, Yan Zhang, Tingsheng Zhou, Shuai Chen, Hong Zhu, Jing Bai, Jinhua Li, Baoxue Zhou
Summary: An efficient WO3-x nanoplates photoanode was generated based on bidentate hydrogen bonds and in subsequent thermal reduction of ethylene glycol (EG). The introduction of oxygen vacancies (O-v) significantly improved the photocurrent density, reduced the reaction energy barrier, and enhanced surface reaction kinetics.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Mengyang Zhou, Shuai Chen, Jing Bai, Jiachen Wang, Yan Zhang, Tingsheng Zhou, Jinhua Li, Wenfeng Shangguan, Baoxue Zhou
Summary: Oxygen concentration and distribution in hematite significantly affect holes transfer efficiency, ultimately influencing the performance of photoelectrocatalytic water splitting. Thermal treatment leads to changes in oxygen, impacting holes transfer efficiency.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Environmental
Changhui Zhou, Jing Bai, Yan Zhang, Jinhua Li, Zhijing Li, Panyu Jiang, Fei Fang, Mengyang Zhou, Xiaojie Mei, Baoxue Zhou
Summary: By proposing a novel 3D Pd-Cu(OH)(2)/CF cathode based electrocatalytic system, efficient and selective removal of NO3- to NH4+ and further oxidation to N-2 was achieved. This system demonstrated high efficiency and removal rate, providing an effective solution for wastewater treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Tingsheng Zhou, Lei Li, Jinhua Li, Jiachen Wang, Jing Bai, Ligang Xia, Qunjie Xu, Baoxue Zhou
Summary: The novel CQDs/E-TiO2 photoanode is designed to synergistically improve the performance of photoelectrochemical water splitting by electrochemically reducing TiO2 and modifiying CQDs to enhance bulk charge separation efficiency, surface charge transfer efficiency, and oxygen evolution reaction kinetics. The CQDs/E-TiO2 exhibits significantly higher photocurrent densities compared to TiO2 and E-TiO2, demonstrating its potential for efficient water splitting applications.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Bo Zhang, Jing Bai, Yan Zhang, Changhui Zhou, Pengbo Wang, Lina Zha, Jinhua Li, Abdolreza Simchi, Baoxue Zhou
Summary: This study proposes a method to convert H2S and CO2 into CO and S simultaneously using an electrochemical reactor, achieving high efficiency and yield. Through special designs in the anodic and cathodic chambers, the synchronized utilization of H2S and CO2 is successfully realized.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Changhui Zhou, Jinhua Li, Yan Zhang, Jing Bai, Lei Li, Xiaojie Mei, Xiaohong Guan, Baoxue Zhou
Summary: This study proposes a novel denitrification fuel cell for treating nitrate-rich wastewater, which can convert NO3- into N-2 and recover chemical energy into electrical energy using a copper nanowire-modified copper foam cathode.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Yan Zhang, Wenjing Tang, Jing Bai, Jinhua Li, Jiachen Wang, Tingsheng Zhou, Xiaohong Guan, Baoxue Zhou
Summary: An efficient electrochemical system was developed to simultaneously remove total nitrogen and dissolved organic compounds in wastewater reclamation by utilizing chlorine radicals. Co3O4 nanowires outperformed other nanomaterials, achieving high removal rates for NH3-N and DOC in synthetic ROC.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Pengbo Wang, Jinhua Li, Yang Xu, Changhui Zhou, Yan Zhang, Lina Zha, Bo Zhang, Jing Bai, Baoxue Zhou
Summary: A self-driving nano photoelectrocatalytic system was developed to efficiently treat nitrogen pollution in urine, producing hydrogen and removing total nitrogen under neutral pH conditions.
Article
Engineering, Environmental
Yan Zhang, Xiaoya Huang, Jinhua Li, Jing Bai, Changhui Zhou, Lei Li, Jiachen Wang, Mingce Long, Xinyuan Zhu, Baoxue Zhou
Summary: This research reports a novel system that decomposes urine into H-2 and N-2 under neutral conditions using Co3O4 nanowire anodes and CuO nanowire cathodes. The system effectively boosts electron transfer and overcomes kinetic limitations, resulting in higher H-2 production compared to conventional electrolysis methods. Additionally, the system successfully degrades urine and removes nitrogen with N-2 as the final product.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Jiachen Wang, Tingsheng Zhou, Yan Zhang, Lei Li, Changhui Zhou, Jing Bai, Jinhua Li, Hong Zhu, Baoxue Zhou
Summary: A type-II heterojunction CdIn2S4/BiVO4 is designed to improve the photocurrent density, and the introduction of CQDs further enhances the performance. Spin-coating of FeOOH on CQDs/CdIn2S4/BiVO4 can further improve the PEC performance.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Jiachen Wang, Jing Bai, Yan Zhang, Lei Li, Changhui Zhou, Tingsheng Zhou, Jinhua Li, Hong Zhu, Baoxue Zhou
Summary: In this study, an unconventional substitution of Ti4+ for V5+ sites in BiVO4 resulted in Ti:BiVO4, which exhibited improved efficiency and charge carrier separation in photoelectrocatalytic water oxidation. Ti:BiVO4 showed a 1.90-fold increase in photocurrent density (2.51 mA cm-2 at 1.23 V vs RHE) and a 1.81-fold increase in charge carrier density (5.86 x 1018 cm-3) compared to pure BiVO4. DFT calculations suggested that Ti doping could decrease the polaron hopping energy barrier, narrow the band gap, and decrease the overpotential of the oxygen evolution reaction (OER).
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Environmental
Hongfeng Zhao, Yan Zhang, Chaoyue Xie, Jiachen Wang, Tingsheng Zhou, Changhui Zhou, Jinhua Li, Jing Bai, Xinyuan Zhu, Baoxue Zhou
Summary: This study introduces a non-precious ultrathin NiFe-layered double hydroxide catalyst for efficient conversion of urea into N2 and H2. The catalyst exhibits ultrathin nanosheet structure that promotes dehydrogenation process and shows excellent stability. This research provides a promising approach for H2 production from urine biowastes.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yan Zhang, Youzhi Ji, Jinhua Li, Jing Bai, Shuai Chen, Linsen Li, Jiachen Wang, Tingsheng Zhou, Panyu Jiang, Xiaohong Guan, Baoxue Zhou
Summary: The study proposed a method for efficient removal of ammonia pollution using a BiVO4/WO3 photoanode in a self-driven photoelectrocatalytic system by selectively generating Cl-. By modifying BiVO4 to regulate the valence band edge of WO3, the method enhanced Cl- production and reduced the generation of toxic chlorate and nitrate, providing new insights for developing efficient and environmentally friendly treatment methods for ammonia pollution.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
