Article
Chemistry, Physical
Xiaojun Dai, Sheng Feng, Wei Wu, Yun Zhou, Zhiwei Ye, Xun Cao, Yang Wang, Chengdeng Yang
Summary: In this study, ZnCo2S4 nanoparticles were coupled on the surface of TiO2 to form S-scheme heterojunction. ZCS/TiO2 exhibited significantly improved photocatalytic performance under simulated sunlight, with hydrogen evolution efficiency reaching 5580 mu mol.g(-1).h(-1) and apparent quantum efficiency (AQY) of 11.5% at 420 nm. The enhancement of photocatalytic performance was mainly attributed to the S-scheme heterojunction, which improved electron-hole separation and charge transfer efficiency, as well as enhanced visible light absorption. This work provides a new approach for improving the performance of photocatalytic hydrogen evolution and TC degradation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Liran Liu, Hanping Fu, Yating Zeng, Li Feng, Tianxiang Zhang, Qingshuang Liang, Xiufeng Xiao
Summary: In this study, a series of Bi nanoparticle modified BiOCl composites were constructed by in situ chemical reduction to enhance photocatalytic performance for H2O2 production. The synergistic effects of localized surface plasmon resonance, Schottky barriers formation, and in situ fabricated heterojunction resulted in enhanced photocatalytic capability for H2O2 production.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Physical
Qi Xu, Liang Liu, Jialiang Wei, Guodong Xu, Jingtao Dai, Dong Fang, Jianlan Liu
Summary: A three-component catalyst Pd/C3N4/Fe3O4 was synthesized and showed significant photocatalytic performances and cycle stability. The degradation efficiency of tetracycline reached 97% within 90 minutes, and the catalyst achieved a high hydrogen production rate.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Qiang Yang, Renjie Li, Siqi Wei, Rui Yang
Summary: Ti3C2 can form a Schottky junction with N-type semiconductors, showing great potential in photocatalysis due to its metallic conductivity and spectral absorption. The TC/g-CN/BOC photocatalyst fabricated by a hydrothermal method exhibits excellent photocatalytic performance, with the Schottky junction promoting photo-reduction and the Z-scheme structure broadening the energy gap for photo-oxidation.
APPLIED SURFACE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Lulu Zhu, Baiyu Zhang, Qian Su, Runlu Liu, Jingyi Lin, Hua Wang, Shenmin Zhu, Yao Li
Summary: Introduction of oxygen vacancies can enhance the photocatalytic activity of BiVO4-based heterojunctions and promote the separation of charge carriers.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Li Li, Wenjun Cao, Jiahao Yao, Wei Liu, Feng Li, Chunchang Wang
Summary: In this study, BiOCl/NaNbO3 piezoelectric composites with different molar ratios were successfully synthesized by hydrothermal methods. The performance of BiOCl/NaNbO3 composite, especially BN-3, was significantly enhanced compared to pure BiOCl and NaNbO3, showing higher degradation rates for Rhodamine B (RhB). The study further investigated and explained the mechanism of piezocatalysis, photocatalysis, and their synergy effect in BN-3 composite. This research provides valuable insights into the piezo-photocatalytic technique and offers a new strategy for improving the efficiency of piezoelectric composites in environmental pollutant remediation.
Article
Environmental Sciences
Kefeng Xie, Shengyuan Xu, Kai Xu, Wei Hao, Jie Wang, Zheng Wei
Summary: BiOCl semiconductors have attracted extensive attention due to their potential in addressing energy shortages, improving sterilization performance, and solving environmental issues. Researchers have developed effective methods, such as heterojunction construction, to overcome the limitations in optical quantum efficiency and reduction capacity. The applications of BiOCl heterojunctions in pollutant degradation, CO2 reduction, water splitting, organic synthesis, and tumor ablation are also reviewed.
Article
Materials Science, Multidisciplinary
Zibo An, Qiji Gui, Hao Li, Hong Cao, Benqun Yang, Wenqiang Dang, Shengwei Liu, Jun Xue
Summary: Silicon carbide (SiC) has been investigated as a promising semiconductor photocatalyst for water splitting due to its excellent photocatalytic activity and high stability. However, the fast combination of photogenerated carriers limits its efficiency. In this study, a Si/SiC composite was synthesized through a simple method and showed significantly improved photocatalytic hydrogen production compared to pure SiC. The composite's enhanced activity can be attributed to the heterojunction effect between Si and SiC, which promotes the separation of electrons and holes. This low-cost and scalable composite has great potential for practical solar-H2 production applications.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Chemistry, Physical
Lingsong Wang, Huanshun Yin, Suo Wang, Jun Wang, Shiyun Ai
Summary: Bi/BiOCl/Bi2O2CO3 heterojunction with enhanced photocatalytic activity was prepared via one-step hydrothermal process under the synergistic catalysis of Ni2+, showing promising application potential in environmental remediation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Environmental Sciences
Xiaoqian Zhang, Zhipeng Wu, Yixiao Wu, Abdulmoseen Segun Giwa, Shaobin Huang, Lishan Niu
Summary: The environmental dissemination caused by widespread use of antibiotics poses a possible threat to aquatic ecosystem and human health. Therefore, the development of a novel catalyst with remarkable visible-light-driven activity for the simultaneous removal of antibiotics has become essential. In this study, C/BiOCl composites were prepared by decorating BiOCl nanosheets on food wastes biochar (C) using a simple hydrolysis strategy. The 25% C/BiOCl demonstrated simultaneous photodegradation of both binary system tetracycline antibiotics and ternary mixture within 15 minutes of irradiation. The improved photocatalytic activities can be attributed to the introduction of biochar, which provided increased surface area, enhanced separation of photo-generated charge carriers, and better light absorption. The as-prepared 25% C/BiOCl also showed satisfactory stability and positive removal effect in actual water samples. This work provides new insights into the development of biochar-based photocatalysts for the simultaneous degradation of multiple antibiotics.
ENVIRONMENTAL POLLUTION
(2023)
Article
Chemistry, Physical
Da Wang, Ziyan Li, Huiling Zhang, Jingwen Sun, Yuanxi Tang, Lin Huang
Summary: In this study, a plasmonic catalyst Au-Pt-SiC was prepared by introducing Pt-Si bonds on the SiC surface, creating an excellent channel for efficient photo-electron transfer. The localized surface plasmon resonance effect of Au further activated the Pt-Si bonds and motivated a high-efficient photo-electron transport channel among Au, Pt, and SiC. The LSPR of Au also enhanced light absorption and broadened the range of light absorption.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Green & Sustainable Science & Technology
Pritam Hait, Rajeev Mehta, Soumen Basu
Summary: In this study, a ternary nanocomposite consisting of polyaniline, graphene oxide, and bismuth oxychloride was synthesized and evaluated for its photocatalytic activity. The results showed that the nanocomposite exhibited high efficiency in degrading organic dyes and generating hydrogen gas under solar light irradiation. Additionally, the nanocomposite demonstrated good stability and reusability.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Environmental
Xiaoli Zhao, Bangwei Deng, Fei Li, Ming Huang, Yanjuan Sun, Jieyuan Li, Fan Dong
Summary: In this study, a novel heterostructure of GQDs@BiOCl ultrathin nanosheets was synthesized for photocatalytic toluene degradation. This structure enhances charge separation efficiency, promotes the generation of reactive oxygen species, and accelerates the degradation of toluene.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Yadala Venkata Divyasri, Nagappagari Lakshmana Reddy, Kiyoung Lee, M. Sakar, Vempuluru Navakoteswara Rao, Vemula Venkatramu, Muthukonda Venkatakrishnan Shankar, Nallagondu Chinna Gangi Reddy
Summary: This study optimized nitrogen doping in TiO2 nanotubes to achieve enhanced photocatalytic efficiency for dye degradation and hydrogen production under solar light exposure. By controlling the nitrogen doping concentration, the N-doped TiO2 nanotubes showed efficient photocatalytic performance and stable recyclability.
ENVIRONMENTAL POLLUTION
(2021)
Article
Chemistry, Physical
Yunlong Chen, Gang Liu, Limin Dong, Xinmei Liu, Miaomiao Liu, Xiaoyi Wang, Chunpeng Gao, Guanxiang Wang, Zhengchun Teng, Wenlong Yang, Yong Dai
Summary: This study synthesized BiOCl microflowers with oxygen vacancies using a facile method and evaluated their photocatalytic performance. The results showed that an appropriate concentration of oxygen vacancies and an increased specific surface area contributed to enhanced photocatalytic activity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
