Article
Chemistry, Physical
Yuchun Ren, Tao Gong, Songlin Tan, Ming Chen, Fei Zhou, Yongjun Lin, Li Yang, Qiong Peng
Summary: The properties and interactions of g-C3N4, Bi3NbO7, and g-C3N4/Bi3NbO7 photocatalysts were revealed through various tests. g-C3N4/Bi3NbO7 has a lower band gap and higher absorption of visible light, as well as higher efficiency in separating photogenerated electron-hole pairs. In the photocatalytic reduction of Cr(VI), g-C3N4/Bi3NbO7 is more effective than pure g-C3N4 and Bi3NbO7.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Ke Xiao, Yu Zhao, Linkun Xie, Kaimeng Xu, Yongjian Qin, Lianpeng Zhang, Xijuan Chai
Summary: In this paper, a series of surface-alkalinized graphitic phase carbon nitride (g-C3N4) were synthesized and the effects of different salts on the surface alkalization of CN samples were investigated. The results showed that the energy band structure of CN was optimized and the photocatalytic activity was enhanced after the surface alkalization.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Spectroscopy
Liqin Yang, Jun Zhao, Zheng Wang, Lili Wang, Zhiju Zhao, Siyu Li, Guanghua Li, Zhenyu Cai
Summary: In this study, a g-C3N4/ZnIn2S4 photocatalyst was constructed for the economical visible-light photocatalytic reduction of Cr(VI). The results showed that g-C3N4/ZnIn2S4 exhibited higher photocatalytic activity compared to g-C3N4 and ZnIn2S4 alone.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Agricultural Engineering
Aman Chauhan, Archana Negi, Rajiv Kashyap, Bunty Sharma, Ramesh K. Sharma, Ganga Ram Chaudhary
Summary: In this study, cellulose-based films hybridized with chitosan and g-C3N4 were fabricated for visible light-induced removal of methylene blue and Cr (VI) ions from water. The films showed a strong association of g-C3N4 in the cellulose chitosan network, which led to an increase in both adsorption and degradation efficiency. The formulation containing 50 wt% g-C3N4 exhibited maximum efficiency for both methylene blue photooxidation and Cr (VI) photoreduction process.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Environmental Sciences
V Perumal, C. Inmozhi, R. Uthrakumar, R. Robert, M. Chandrasekar, S. Beer Mohamed, Shehla Honey, A. Raja, Fahd A. Al-Mekhlafi, K. Kaviyarasu
Summary: Surfactant-treated tin oxide (SnO2) hierarchical nanorods were successfully synthesized through hydrothermal technique. Analysis results showed that the prepared SnO2 possessed tetragonal rutile structure with good crystallinity and red-shifted visible light absorption band compared to pure SnO2. The as-prepared SnO2 nanorods showed characteristic bands of SnO2 nanostructures, and the morphological analyses revealed hierarchical nanorods and complex nanostructures. The photocatalytic performance of the surfactant-treated SnO2 hierarchical nanorods was evaluated using methylene blue dye removal under direct natural sunlight, and the recycling experiment results and photocatalytic reaction mechanism were also discussed in detail.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Huimin Sun, Le Wang, Yue Liu, Zhen Cheng, Yifan Zhao, He Guo, Guangzhou Qu, Tiecheng Wang, Xianqiang Yin
Summary: In this study, alkali-modified g-C3N4 (cOH-CN) and acid-modified g-C3N4 (cH-CN) materials were synthesized and tested for their photocalytic activities in Cr(VI) reduction, showing higher efficiency with the reduction mainly initiated by free electrons in the modified materials.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Chemistry, Inorganic & Nuclear
Dandan Liu, Xin Liu, Zhifen Guo, Qiang Li, Jian Yang, Hongzhu Xing, Dashu Chen
Summary: In this study, aluminum-based porphyrin metal-organic frameworks with different morphologies and sizes were synthesized, and they exhibited excellent photocatalytic activities for Cr(VI) reduction. The morphology of the frameworks could be tuned by adjusting reaction conditions and ligand types, and the metallic frameworks showed higher catalytic activity.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Chuanjie Wang, Guanglei Yang, Wenbin Shi, Katarzyna Matras-Postolek, Ping Yang
Summary: Surface heterostructures of 2D/2D MoS2/g-C3N4 (MCN) were successfully created through second thermal polymerization and chemical reaction, showing excellent performance in removing Cr(VI) and converting it to non-toxic Cr(III) through photoreduction. Adsorption and photoreduction were combined to achieve the outstanding removal of Cr(VI) in MoS2/g-C3N4 nanocomposites.
Article
Chemistry, Physical
Qiang Li, Hao Zhou, Meng Tan, Lingxuan Yang, Xiao Hu, Guoxiang Yang, Hao Du, Qing Wei, Qi Wang
Summary: In this study, a novel BixFeyVO4/g-C3N4 (BFC) binary heterojunction photocatalyst was successfully designed and synthesized through doping and heterojunction construction. Fe doping endowed BiVO4 with a narrower bandgap, enhancing its light response and redox ability. The construction of heterojunction facilitated charge separation, leading to significantly higher photocatalytic activity of the BFC heterojunction compared to single semiconductors. The Cr(VI) photoreduction rate (k) of the BFC binary heterojunction was 78 (45) times that of BiVO4 (FeVO4), and the heterojunction maintained a high photoreduction efficiency (98%) of Cr(VI) even after five cycling tests, demonstrating excellent photocatalytic stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Environmental Sciences
Ayad A. H. Faisal, Zahraa Khalid Ramadhan, Nadhir Al-Ansari, Gaurav Sharma, Mu Naushad, Chinna Bathula
Summary: The focal point of this work was to prepare a new sorbent for removing anionic and cationic dyes from sewage sludge byproduct by precipitating nano-sized (Mg/Fe-CTAB)-layered double hydroxide (LDH) on the sludge surfaces. The optimal preparation conditions were determined to be a CTAB mass of 0.03 g/50 mL, a sludge dosage of 1 g/50 mL, and a (Mg/Fe) molar ratio of 2. The sorbent exhibited efficiencies exceeding 93% for MB and CR dyes.
Article
Biochemistry & Molecular Biology
Juan Liang, Chengjun Jing, Jiarong Wang, Yupawang Men
Summary: Graphitic carbon nitride (g-C3N4) photocatalysts were synthesized using different precursors, with urea-derived g-C3N4 showing superior photocatalytic activity for the reduction of Cr(VI). The nanosheet morphology, large surface area, and high occupancy of surface amine groups in urea-derived g-C3N4 facilitated charge separation and transmission, promoting the reduction of Cr(VI) to Cr(III) through direct reduction of photogenerated electrons.
Article
Chemistry, Physical
Huimin Sun, Le Wang, Ying Zhang, Tiecheng Wang, Xianqiang Yin
Summary: In this study, modified IL-CN materials were successfully synthesized and their photocatalytic activities for Cr(VI) reduction were tested. The results showed that the modified IL-CN materials exhibited larger specific surface area and pore volume, and stronger electron-hole pair separation capacities, leading to excellent catalytic activity. Acidic conditions and relatively higher dosage of IL-CN were conducive to Cr(VI) reduction.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Ceramics
Yubing Sun, Xinshui Huang, Yanxue Yue, Weiyu Zhu, Bo Zhang, Rongbo Hou, Ahadi Ishag
Summary: The effect of Cr(VI) and TC on the photocatalytic reduction of U(VI) by MoS2/g-C3N4 was investigated. The presence of TC and Cr(VI) improved the photoreduction of U(VI), while their own photocatalytic removal was not significantly influenced. The re-oxidation of U(VI) into U(VI) was observed under increasing irradiation.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Environmental
Xiaodong Wang, Yongxun Dai, Chen Tian, Huize Zhang, Xiwen Li, Wenlong Liu, Weibing Li, Shaoping Kuang, Hongtao Tong
Summary: This study successfully improves the photocatalytic removal performance of Cr(VI) by preparing CN/ZFO/MoS2 photocatalyst, providing a theoretical basis for further enhancing the performance of magnetic heterojunction photocatalysts.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Engineering, Electrical & Electronic
Yuchun Ren, Tao Gong
Summary: In this study, the g-C3N4/CdS core-shell nanocomposite was successfully obtained through a typical hydrothermal reaction. The photocatalytic activity of g-C3N4/CdS for degradation was found to be excellent, and the efficiency remained stable even after repeated experiments. Through mechanism verification experiments, a reasonable mechanism for the degradation of dyes and heavy metal pollutants by the catalyst was elucidated.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
