Green One-Pot Synthesis of Mesoporous g-C3N4 for Promoted Organic Dyes Photodegradation in Wastewater Treatment

被引：1

作者：

Lan, Dawei ^{[1
,2
,3
]}

Zhu, Huiwen ^{[1
,2
,3
]}

Zhang, Jianwen ^{[1
,2
,3
]}

Xie, Chengrui ^{[1
,2
,3
]}

Wang, Fan ^{[1
,2
,3
]}

Zheng, Yueying ^{[1
,2
,3
]}

Guo, Zeyu ^{[1
,2
,3
]}

Xu, Mengxia ^{[1
,2
,3
]}

Wu, Tao ^{[1
,2
,3
]}

机构：

[1] Univ Nottingham Ningbo China, Key Lab Clean Energy Technol Ningbo Municipal, Ningbo 315100, Peoples R China

[2] Univ Nottingham Ningbo China, Dept Chem & Environm Engn, Ningbo 315100, Peoples R China

[3] Univ Nottingham Ningbo China, Key Lab Carbonaceous Wastes Proc & Proc Intensific, Ningbo 315100, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2024年 / 63卷 / 08期

关键词：

GRAPHITIC CARBON NITRIDE; DRIVEN PHOTOCATALYTIC DEGRADATION; RHODAMINE-B; QUANTUM DOTS; REMOVAL; PERFORMANCE; NANOSHEETS; HETEROSTRUCTURE; HETEROJUNCTION; NANOPARTICLES;

D O I：

10.1021/acs.iecr.3c03703

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This work provided a green, one-pot route to synthesize mesoporous g-C3N4. A series of characterizations revealed that the mesoporous sample maintained the typical structure of g-C3N4. The findings displayed that this mesoporous material had enlarged porosity and optical properties. The largest S BET of the mesoporous sample (32.65 m(2)/g) was 4.36 times larger than that of the bulk sample (7.48 m(2)/g). The photoactivity of the prepared photocatalysts was measured by the photocatalytic removal of rhodamine B (RhB). In agreement with the characterization analysis, the mesoporous g-C3N4 (99.60%) exhibited a 3.88 times better photocatalytic efficiency than that of bulk g-C3N4 (25.63%) and an 11.19 times faster reaction rate in the same period. In addition, the possible mechanism of this photodecomposition reaction was identified by the electron spin resonance (ESR) and trapping tests. The results demonstrated that center dot O-2(-) and center dot OH made contributions, and center dot O-2(-) played a dominant role in this process. This research offers a promising method for the synthesis of mesoporous g-C3N4 in an environmentally friendly and cost-effective route with remarkably high photoactivity. [GRAPHICS]

引用

页码：3491 / 3503

页数：13

共 64 条

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