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, Multidisciplinary
Xizhuang Liang, Peng Wang, Fengxia Tong, Xiaolei Liu, Cong Wang, Minrui Wang, Qianqian Zhang, Zeyan Wang, Yuanyuan Liu, Zhaoke Zheng, Ying Dai, Baibiao Huang
Summary: P-type and n-type BiVO4 photoelectrodes were prepared using different synthesis methods, and their photoelectrochemical performance was improved through surface modification and co-catalysts. A tandem-type PEC cell was successfully built, showing promising results for water splitting.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Jingwei Huang, Wei Luo, Weize Ma, Xiaoli Yuan
Summary: In this study, FeCoS2 bimetallic sulfide nanoparticles were successfully coated on the BiVO4 photoanode to enhance its photocurrent density and charge separation efficiency, while inhibiting the recombination of photogenerated charge carriers.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Applied
Wen Zhang, Meng Tian, Haimiao Jiao, Hai-Ying Jiang, Junwang Tang
Summary: In this work, a highly-matched BiVO4/WO3 nanobowl photoanode was constructed and further modified to enhance its photocurrent density and photoelectrochemical performance. The photocurrent density was increased by about 5-fold compared to pristine BiVO4, achieving a faradaic efficiency of approximately 95%.
CHINESE JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Physical
Ali Tavazohi, Hossein Abdizadeh, Mohammad Reza Golobostanfard
Summary: Bismuth vanadate has been extensively studied as a visible light photoanode for PEC water splitting. In this study, the performance of BiVO4 film is improved by developing a hierarchical SnO2 mesoporous support and decorating it with silver nanorods. The enhanced photocurrent density and delayed oxygen evolution reaction are achieved with this improvement.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Tianxiang Han, Lan Wu, Peng Wang, Tong Wang, Zhiqiang Yang, Kaige Tian, Jun Jin
Summary: In this study, Mn-FeOOH cocatalyst was successfully synthesized on the BiVO4 photoanode, which enhanced the photocurrent density and negatively shifted the onset potential, providing a new direction for the design of photoelectrodes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Environmental
Zexiao Zheng, Juhua He, Chencheng Dong, Irene M. C. Lo
Summary: A new photoelectrochemical system using sodium sulfite was developed for sewage treatment, promoting the degradation of pharmaceuticals, hydrogen production, and E. coli disinfection. The system showed significant improvement in efficiency compared to traditional electrolytes like Na2SO4 or NaCl, with sulfite ions playing a key role in the degradation process. Real sewage treatment also saw improvements in degradation rate, hydrogen evolution, and disinfection by adding Na2SO3, showcasing the system's potential for practical applications.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Yuhao Guo, Yaqiang Wu, Zhaoqi Wang, Dujuan Dai, Xiaolei Liu, Qianqian Zhang, Zeyan Wang, Yuanyuan Liu, Zhaoke Zheng, Hefeng Cheng, Baibiao Huang, Ying Dai, Peng Wang
Summary: By using In doping and photo-potentiostatic polarization strategies, a highly efficient and stable PEC water splitting device was constructed. The device utilizes oxygen vacancies to enhance conductivity and charge separation, and employs FeOOH co-catalyst to provide abundant active sites.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Haiyang Fan, Guiyun Yi, Zhengting Zhang, Xiuxiu Zhang, Peng Li, Chuanxiang Zhang, Lunjian Chen, Yulong Zhang, Qi Sun
Summary: In this study, an Ag deposited BiVO4 (ABVO) electrode was successfully fabricated via a combination of electrodeposition and photodeposition for efficient photoelectrocatalytic degradation of 13-naphthol under visible-light illumination. The ABVO photoanode exhibited a 1.6 times higher photocurrent density than BiVO4 (BVO) due to reduced recombination rate of photoinduced electron-hole pairs. The enhanced performance of ABVO can be attributed to the synergy of photocatalysis, electrocatalysis, and the localized surface plasmon resonance effect of deposited Ag particles.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Biophysics
Hui Wang, Hanyu Wang, Yuyang Li, Huan Wang, Xiang Ren, Qin Wei, Dan Wu
Summary: In this study, a photoelectrochemical immunosensor was developed for the detection of neuron-specific enolase (NSE). The use of ITO/BiVO4/BiOI/Ag2S as the photoanode and ITO/CuInS2 as the photocathode improved the photocurrent response and reduced the detection limit. The constructed immunosensor exhibited excellent linear relationship, stability, reproducibility, and specificity, providing a promising approach for the detection of other molecules.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Chemistry, Physical
Yan Yang, Shipeng Wan, Ruonan Wang, Man Ou, Xiao Fan, Qin Zhong
Summary: A thin NiFe-MOF layer grafted O-vac-BVO photoanode was fabricated, which improved charge separation and transfer efficiency, and effectively inhibited photocorrosion, resulting in outstanding photocurrent density and chemical stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Yuqiong Deng, Xionghui Fu, Yuanming Zhang, Yi Zhu, Yongge Wei
Summary: This study reports PEG-modified BiVO4 photoanodes, in which the high proton conductivity of PEG facilitates the fast transfer of protons, leading to accelerated formation rate of the O-O bond. The composite photoanode exhibits higher photocurrent density and a negative shift in onset potential.
Article
Biochemistry & Molecular Biology
Jiangtao Huang, Aiyun Meng, Zongyan Zhang, Guanjie Ma, Yuhao Long, Xingyu Li, Peigang Han, Bin He
Summary: Constructing heterojunction is an effective strategy to enhance photoelectrochemical performance. In this study, a novel porous BiVO4/Boron-doped Diamond heterojunction photoanode was successfully fabricated and the surface structure was optimized for the best performance. The heterojunction photoanode exhibited excellent charge transfer efficiency and reduced carrier recombination rate.
Article
Chemistry, Physical
Guihua Zeng, Yuqiong Deng, Xiang Yu, Yi Zhu, Xionghui Fu, Yuanming Zhang
Summary: The study demonstrates that inserting ultrathin g-C3N4 layers into the OEC/BiVO4 system can significantly improve the photoelectrochemical performance by optimizing hole migration routes and enhancing hole trapping lifetime, ultimately achieving high photocurrent density efficiency.
JOURNAL OF POWER SOURCES
(2021)
Article
Materials Science, Multidisciplinary
Jiangtao Huang, Aiyun Meng, Zongyan Zhang, Guanjie Ma, Yuhao Long, Xingyu Li, Bingxi Xiang, Peigang Han, Bin He
Summary: Photoelectrocatalysis was used to address wastewater problems, and a novel heterojunction photoanode with BiVO4/BDD was fabricated by adjusting the B doping concentration. The PEC activity of the photoanode was improved by optimizing the crystalline qualities and electrical conductivities of BDD films. The optimal PEC activity and tetracycline hydrochloride degradation efficiency were achieved with a [B]/[C] gas ratio of 500 ppm.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Chemistry, Physical
Zexiao Zheng, Xukai Li, Laisheng Li, Yiming Tang
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Physical
Zexiao Zheng, Yin Qiao, Yihan Cai, Yini He, Yiming Tang, Laisheng Li
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2019)
Article
Engineering, Environmental
Yanyang Zhang, Saeed Ahmed, Zexiao Zheng, Fei Liu, Chui-Fan Leung, Tak-yip Choy, Yau-ting Kwok, Bingcai Pan, Irene M. C. Lo
Summary: The pilot-scale adsorption system using La@201 as the adsorbent demonstrated high efficiency and stability in phosphorus removal, showing great potential for practical applications. The study provides new insights into the design and scaling-up of novel adsorbents and adsorption technology for polishing phosphate treatment from natural waters and wastewater.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Zexiao Zheng, Yun Hau Ng, Yiming Tang, Yaping Li, Weirui Chen, Jing Wang, Xukai Li, Laisheng Li
Summary: Nanoporous MoS2@BiVO4 photoanodes were successfully fabricated for the photoelectrocatalytic degradation of BPA, achieving complete degradation in 75 minutes. The well-designed hybrid structure and chlorine oxide radical were identified as key factors for BPA degradation.
Article
Engineering, Environmental
Chencheng Dong, Zexiao Zheng, Zhiqiang Wang, Juhua He, Zhichao Ye, Xueqing Gong, Irene M. C. Lo
Summary: CoP nanoparticle-loaded N-doped graphitic C3N4 nanosheets were fabricated to degrade PPCPs via a VLD-PMS activation system, with the doped graphitic N atoms modulating the electronic properties of the nanosheets. Experimental results showed that the Co-N bond dramatically enhanced the transfer of photo-generated electrons.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Zexiao Zheng, Juhua He, Chencheng Dong, Irene M. C. Lo
Summary: A new photoelectrochemical system using sodium sulfite was developed for sewage treatment, promoting the degradation of pharmaceuticals, hydrogen production, and E. coli disinfection. The system showed significant improvement in efficiency compared to traditional electrolytes like Na2SO4 or NaCl, with sulfite ions playing a key role in the degradation process. Real sewage treatment also saw improvements in degradation rate, hydrogen evolution, and disinfection by adding Na2SO3, showcasing the system's potential for practical applications.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Chencheng Dong, Zexiao Zheng, Mohammad A. H. Badsha, Juhua He, Irene M. C. Lo
Summary: In this study, a novel photo-electrocatalysis-assisted peroxymonosulfate (PEC/PMS) system was developed to degrade pharmaceuticals and personal care products (PPCPs). A specially synthesized hollow-structured photoanode (Pt@CeO2@MoS2) exhibited superior degradation performance with PMS assistance, increasing the kinetic constant by 87.4 times. The synergistic effect between the hollow material and surface valence state changes contributed to enhancing degradation efficiency, showing potential for environmental remediation.
ENVIRONMENT INTERNATIONAL
(2021)
Article
Engineering, Electrical & Electronic
Xianglin Sun, Hao Wu, Yiming Tang, Zexiao Zheng, Yaping Li, Laisheng Li, Qiuyun Zhang
Summary: The tip-decorated ZnO/Bi2S3 photoelectrode exhibited enhanced photoelectrochemical properties for the degradation of TBBPA, with improved light absorption of Bi2S3 nanoparticles and accelerated electron-transfer pathway of ZnO nanorods. The electrode also showed good stability and high photocurrent density under UV and visible light irradiation, indicating its promising potential for environmental remediation applications.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Environmental Sciences
Saeed Ahmed, Yanyang Zhang, Baile Wu, Zexiao Zheng, Chui-Fan Leung, Tak-Yip Choy, Yau-Ting Kwok, Irene M. C. Lo
Summary: This study developed a kilogram-scale Fe3O4/La(OH)(3) magnetically recyclable composite for phosphate removal from river water, showing excellent performance in bench-scale tests but significantly reduced efficiency in pilot-scale due to turbidity, suspended solids, organic matter, and deteriorated magnetic separation efficiency in the river water.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Physical
Zexiao Zheng, Irene M. C. Lo
Summary: The study introduces a multifunctional photoelectrochemical system for degrading PPCPs, disinfecting E. coli, and producing H-2 simultaneously. Chloride ions play a critical role in the PEC system, activating to become chloride-based radicals for sewage treatment and enhancing H-2 evolution.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Environmental
Juhua He, Zexiao Zheng, Irene M. C. Lo
Summary: The study demonstrated that gram-positive bacteria were more susceptible to photocatalytic disinfection, showing higher leakage of intracellular components. Gram-negative bacteria interacted less strongly with the photocatalyst, leading to competition for reactive species and inhibition of disinfection effectiveness.
Article
Environmental Sciences
Cheuk Wai Lung, Zexiao Zheng, Irene M. C. Lo
Summary: In this study, a novel solar/TiO2/chlorine system was developed for the degradation of pharmaceuticals and personal care products (PPCPs) and the inactivation of Escherichia coli in drinking water. The addition of chlorine significantly enhanced the degradation efficiency of PPCPs and demonstrated excellent disinfecting abilities. The system showed satisfactory performance in different water matrices and the TiO2 photocatalyst was found to be stable and reusable.
Article
Engineering, Environmental
Zexiao Zheng, Zuyao Zhang, Ka Chun James Wong, Cheuk Wai Lung, Musharib Khan, Juhua He, Ashutosh Kumar, Irene M. C. Lo
Summary: The inefficiency of conventional water treatment technologies for antibiotics has become a global concern. In this study, a promising photoelectrocatalytic (PEC) system enhanced by PMS was developed to treat antibiotics in drinking water. The 1T/2H-MoS2@C/CC photoanode exhibited enhanced PEC performance due to the construction of the 1T rich structure. Under the synergetic effect of PEC and PMS, 2 ppm norfloxacin was completely removed in 30 min by the 1T/2H-MoS2@C/CC photoanode at a 1.5 V applied potential with 40 ppm PMS addition.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Zexiao Zheng, Jiacheng Min, Xiaoying Wang, Cheuk Wai Lung, Kaimin Shih, Irene M. C. Lo
Summary: In this study, an S-scheme magnetic ZnFe2O4/ammoniatedMoS(2) (ZnFe2O4/A-MoS2) heterojunction was developed as a visible-light-driven PMS activator for PPCP degradation, achieving enhanced photocatalytic activity.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)