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All Journal International Journal of Humanities Education and Social Sciences Bulletin of Chemical Reaction Engineering & Catalysis
Li, Jing
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Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Languange, Linguistic, Communication & Media Social Sciences Other

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Modulation of the Microstructure and Enhancement of the Photocatalytic Performance of g-C3N4 by Thermal Exfoliation Zhao, Xinshan; Yu, Junwei; Meng, Tingyu; Luo, Yuanyuan; Fu, Yanzhen; Li, Zhao; Tian, Lin; Sun, Limei; Li, Jing
Bulletin of Chemical Reaction Engineering & Catalysis 2024: BCREC Volume 19 Issue 3 Year 2024 (October 2024)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20189

Abstract

 This work explores the impact of reaction temperature during thermal exfoliation treatment of bulk-g-C3N4 in the air atmosphere on the structure and performance of the resulting CN photocatalyst. The analysis conducted using XRD, FT-IR, XPS, SEM, and elements mapping tests, illustrated an increase in nitrogen-vacancy and oxygen content on the surface of the CN photocatalyst, resulting in a porous and sparse structure, changes in crystal size, and improved visible light absorption performance. The photocatalytic reduction experiments of hexavalent chromium (Cr(VI)) showed that the CN-540 showed the highest reduction rate of 96.9%, with a reaction rate constant 6.21 times that of bulk-g-C3N4. After 100 min of illumination, the photocatalytic degradation rates of CN-540 for TC-HCl and RhB were 66.7% and 60.6%, respectively. The TOC test results indicated mineralization rates of 51.5% for TC-HCl and 46.6% for RhB. Room temperature fluorescence spectroscopy (PL), transient photocurrent response (TPC), and electrochemical impedance spectroscopy (EIS) measurements confirmed the excellent photogenerated charge carrier separation and transport efficiency of CN-540. The photocatalytic mechanism for reducing Cr(VI) by CN-540 was elucidated based on the active species •OH and •O2– and Mott-Schottky (M-S) tests. This study provides experimental data for optimizing the photocatalytic performance of g-C3N4 and paves a new way for developing efficient photocatalysts. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Innovative Development of Zhuang Excellent Traditional Culture in the Era of Integrated Media Liu, Xiaoxiao; Li, Jing
International Journal Of Humanities Education and Social Sciences (IJHESS) Vol 4 No 2 (2024): IJHESS OCTOBER 2024
Publisher : CV. AFDIFAL MAJU BERKAH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55227/ijhess.v4i2.1361

Abstract

Chinese culture represents the rich tapestry of various ethnic traditions. The development of these diverse cultures is essential for the overall prosperity of Chinese civilization. Therefore, promoting the innovative advancement of the Zhuang ethnic group's traditional culture can bolster their cultural confidence, preserve the diversity of Chinese culture, strengthen national identity, foster ethnic unity and progress, enrich spiritual and cultural life, and support rural community development. In today's rapidly evolving integrated media landscape, driven by information technology, the innovative development of the Zhuang's traditional culture encounters significant opportunities. In this study, we first explored the value foundation of innovative development of excellent traditional culture of the Zhuang ethnic group in the era of integrated media. Then, we analyzed the promoting effect of integrated media technology on the innovative development of excellent traditional culture of the Zhuang ethnic group in the new media ecological environment. Finally, we summarized how to fully utilize new technological means, create an integrated media matrix, and leverage resource integration advantages to achieve innovative development of excellent traditional culture of the Zhuang ethnic group. The research results are conducive to deeply exploring the contemporary value of excellent traditional culture of the Zhuang ethnic group and activating its cultural vitality, continuously promoting the creative transformation and innovative development of excellent traditional culture in China, thereby promoting the prosperity and development of cultural undertakings and cultural industries.
Conjugated Polyvinyl Alcohol Modified SnO2 for Efficient Visible Light Photocatalytic Reduction of Cr(VI) Chen, Shaojie; Luo, Yuanyuan; Xu, Yuhan; Chen, Ying; Jiang, Yinxing; Li, Zhao; Tian, Lin; Wang, Furong; Liu, Yuanyuan; Li, Jing
Bulletin of Chemical Reaction Engineering & Catalysis 2024: BCREC Volume 19 Issue 4 Year 2024 (December 2024)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20226

Abstract

The photocatalytic activity of tin dioxide (SnO2) is limited due to its inadequate response to the solar spectrum, wide band gap, and low visible light photocatalytic activity. Here, we synthesized conjugated polyvinyl alcohol (CPVA) modified tin dioxide (CPVA/SnO2) through in-situ hydrothermal synthesis and evaluated its performance for photocatalytic reduction of hexavalent chromium Cr(VI). A series of testing and characterization results revealed that CPVA was uniformly coated on the surface of SnO2, forming a mesoporous CPVA/SnO2 heterojunction with enhanced crystallinity and reduced oxygen defects, which resulted in an expanded light absorption range towards the red light region. The reaction rate constant of CPVA/SnO2-A for photocatalytic reduction of Cr(VI) under visible light (0.060 min-1) was 6 times higher than that of homemade CPVA/TiO2 and 2.87 times higher than that of SnO2 for the photocatalytic reduction of Cr(VI) under UV light (0.0209 min-1). The photocatalytic mechanism indicates that CPVA/SnO2 exhibited significantly enhanced performance under UV-light irradiation by forming a type II heterojunction. When CPVA/SnO2 was exposed to visible light, photogenerated electrons on the lowest unoccupied molecular orbital (LUMO) of CPVA were efficiently transferred to the surface of SnO2 through the CPVA/SnO2 heterojunction, reducing electron-hole recombination while also photosensitizing the photocatalyst and promoting efficient photocatalysis under visible light illumination. Ultimately, this process effectively reduces Cr(VI) to Cr(III). Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
S-scheme g-C3N4/PVA Heterojunction with Enhanced Photocatalytic Reduction of Aqueous Cr(VI) and Mechanism Guo, Tianhong; Jiang, Yingxing; Luo, Yuanyuan; Liang, Xianhui; Zhao, Xinshan; Li, Jing
Bulletin of Chemical Reaction Engineering & Catalysis 2025: BCREC Volume 20 Issue 2 Year 2025 (August 2025)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20350

Abstract

Bulk g-C3N4 was synthesized using melamine as a precursor through thermal polymerization followed by high-temperature quenching. Subsequently, a g-C3N4/PVA heterojunction featuring evenly dispersed PVA on its surface was fabricated via in-situ hydrothermal synthesis. The impact of hydrothermal temperature and PVA concentration on the light absorption, bandgap energy, specific surface area, and charge carrier transport characteristics of g-C3N4/PVA were explored. Experimental findings indicate that PVA modification reduces nitrogen-vacancy defects in the g-C3N4/PVA heterojunction, thereby enhancing its visible-light photocatalytic activity compared to bulk g-C3N4. Specifically, g-C3N4/PVA-3 exhibits a 2.93-fold higher reaction rate for Cr(VI) photocatalytic reduction under visible light (0.017 min–1) than bulk g-C3N4 (0.0058 min–1), with a TOF of 0.0079 h–1. Electrochemical tests confirm that the enhanced activity arises from improved light-induced charge transfer and separation efficiency. Based on Mott-Schottky analysis and the identification of •OH and •O2– as reactive species, a mechanism for Cr(VI) reduction by S-scheme g-C3N4/PVA heterojunctions is proposed. This study presents an economically viable and efficient method for developing high-performance conjugated polymer-modified photocatalysts. Copyright © 2025 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
1D/2D Rod-sheet Shape Bi2S3 Photocatalyst for Photocatalytic Reduction Cr(VI) under Visible Light Wu, Xinzhuo; Chen, Shaojie; Jiang, Yinxing; Zhao, Xinshan; Li, Zhao; Zhou, Yingmei; Li, Jing
Bulletin of Chemical Reaction Engineering & Catalysis 2023: BCREC Volume 18 Issue 4 Year 2023 (December 2023)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20054

Abstract

The crystal structure and morphology of photocatalysts play a crucial role in determining their photocatalytic performance. In this study, we synthesized and investigated 1D/2D Bi2S3 as a potential visible-light-activated photocatalyst for the reduction of aqueous Cr(VI). The 1D/2D Bi2S3 was synthesized using hydrothermal synthesis technique by heating Bi2(H2O)2(SO4)2(OH)2 precursor and sodium sulfide at 190 ℃ for 24 h, where the molar ratio of Bi to S elements in the reaction reagents was changed from 1:6 to 2:3. The structure, composition, and optoelectronic properties of the prepared Bi2S3 were characterized using X-ray diffraction, UV-vis diffuse reflectance spectra, field emission scanning electron microscopy, electrochemical impedance spectra, and transient photocurrent. It is shown that the prepared orthorhombic Bi2S3 has full-spectrum photoresponsivity. Bi2S3-B with 1D/2D heterogeneous structure exhibits the lowest charge carrier transport resistance, and its photocurrent intensity is nearly twice that of Bi2S3-C. It demonstrates the highest photocatalytic activity in visible-light photocatalytic reduction of aqueous Cr(VI), with a reduction rate of 54.5% after 140 minutes of light exposure. According to the bandgap of Bi2S3 and radical scavenger experiments, a reaction mechanism for the photocatalytic reduction of Cr(VI) by Bi2S3 was proposed. Furthermore, the results highlight the economic and environmentally friendly nature of the hydrothermal synthesis method using homemade precursors, which allows for the regulation of Bi2S3 morphology and the enhancement of its visible photocatalytic activity. Copyright © 2023 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). 
Co-Authors Chen, Shaojie Fu, Yanzhen Guo, Tianhong Jiang, Yingxing Jiang, Yinxing Junwei Yu Li, Zhao Liang, Xianhui Lin Tian Liu, Xiaoxiao Liu, Yuanyuan Luo, Yuanyuan Meng, Tingyu Sun, Limei Wang, Furong Wu, Xinzhuo Xu, Yuhan Ying Chen Zhao, Xinshan Zhou, Yingmei