Molten-salt-chemistry-assisted synthesis of heterostructured g-C3N4/BiOI nanocomposites with enhanced sunlight absorption properties for efficient solar-to-chemical energy conversion

被引：3

作者：

Deng, Xinyue ^{[1
]}

Luo, Rui ^{[1
]}

Zhu, Gang ^{[1
]}

Shi, Xiangyang ^{[1
]}

Hao, Weiju ^{[1
]}

Fan, Jinchen ^{[1
]}

Bi, Qingyuan ^{[1
]}

Li, Guisheng ^{[1
]}

机构：

[1] Univ Shanghai Sci & Technol, Sch Mat & Chem, Shanghai 200093, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2024年 / 1009卷

基金：

中国国家自然科学基金;

关键词：

G-C3N4; nanosheets; BiOI; Heterojunction structure; Photocatalytic dye degradation; Solar-to-chemical energy conversion; REDUCTION; PHOTOCATALYSIS;

D O I：

10.1016/j.jallcom.2024.176910

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The g-C3N4 nanosheets coupled BiOI (g-C3N4/BiOI) nanocomposites with unique heterojunction structure and excellent wide-spectrum sunlight absorption properties have been developed via molten-salt-chemistry-assisted strategy. The heterostructured g-C3N4/BiOI shows enhanced solar to the thermal effect, improved electron mobility and carrier lifetime for efficient photocatalytic dye degradation. The engineered g-C3N4/BiOI catalyst exhibits outstanding photocatalytic activity for methyl orange (MO) removal with 100 % degradation conversion and excellent stability under solar light irradiation, which is respectively 2.69 and 1.27 times higher than those of g-C3N4 and BiOI counterparts. The broad scope toward other dyes degraded by g-C3N4/BiOI and the generality of the molten-salt-chemistry-assisted strategy for synthesizing g-C3N4/BiOCl and g-C3N4/BiOBr with considerable photodegradation efficiency are proved. The analysis of kinetic behaviors, electron spin resonance, and nanosecond transient absorption spectra for structure-activity relationship, key intermediate of center dot O-2(-) species, and excited state lifetime of g-C3N4/BiOI heterojunction material in the photocatalytic MO degradation processes are also demonstrated.

引用

页数：12

共 63 条

[1] Formation of BiOI/g-C3N4 nanosheet composites with high visible-light-driven photocatalytic activity [J].

An, Hua ;

Lin, Bo ;

Xue, Chao ;

Yan, Xiaoqing ;

Dai, Yanzhu ;

Wei, Jinjia ;

Yang, Guidong .

CHINESE JOURNAL OF CATALYSIS, 2018, 39 (04) :654-663

[2] Enhanced photocatalytic degradation of cationic dyes under visible light irradiation by CuWO4-RGO nanocomposite [J].

Babu, M. Jagadeesh ;

Botsa, Sathish Mohan ;

Rani, S. Jhansi ;

Venkateswararao, B. ;

Muralikrishna, R. .

ADVANCED COMPOSITES AND HYBRID MATERIALS, 2020, 3 (02) :205-212

[3] Diffusion-Controlled Z-Scheme-Steered Charge Separation across PDI/BiOI Heterointerface for Ultraviolet, Visible, and Infrared Light-Driven Photocatalysis [J].

Ben, Haijie ;

Liu, Yong ;

Liu, Xiao ;

Liu, Xiufan ;

Ling, Cancan ;

Liang, Chuan ;

Zhang, Lizhi .

ADVANCED FUNCTIONAL MATERIALS, 2021, 31 (37)

[4] One-step solid-state-chemistry synthesized layered bismuth oxyiodide crystal for efficient solar-driven CO2 photoreduction br [J].

Bi, Qingyuan ;

Fang, Yuqiang ;

Luo, Rui ;

Huang, Fuqiang .

CATALYSIS COMMUNICATIONS, 2023, 175

[5] Crystalline MoS2-enhanced conductive black titania for efficient solar to chemical energy conversion: photocatalytic CO2 reduction and CH4 oxidation [J].

Bi, Qingyuan ;

Wang, Min ;

Riaz, Muhammad Sohail ;

Du, Xianlong ;

Li, Guisheng ;

Huang, Fuqiang .

JOURNAL OF MATERIALS CHEMISTRY A, 2022, 10 (44) :23854-23862

[6] Nano gold coupled black titania composites with enhanced surface plasma properties for efficient photocatalytic alkyne reduction [J].

Bi, Qingyuan ;

Song, Erhong ;

Chen, Jiacheng ;

Riaz, Muhammad Sohail ;

Zhu, Minghui ;

Liu, Jianjun ;

Han, Yi-Fan ;

Huang, Fuqiang .

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY, 2022, 309

[7] Black phosphorus coupled black titania nanocomposites with enhanced sunlight absorption properties for efficient photocatalytic CO2 reduction [J].

Bi, Qingyuan ;

Hu, Keyan ;

Chen, Jiacheng ;

Zhang, Yaru ;

Riaz, Muhammad Sohail ;

Xu, Jing ;

Han, Yifan ;

Huang, Fuqiang .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2021, 295

[8] Simultaneously Tuning Band Structure and Oxygen Reduction Pathway toward High-Efficient Photocatalytic Hydrogen Peroxide Production Using Cyano-Rich Graphitic Carbon Nitride [J].

Chen, Lei ;

Chen, Cheng ;

Yang, Zhi ;

Li, Shan ;

Chu, Chiheng ;

Chen, Baoliang .

ADVANCED FUNCTIONAL MATERIALS, 2021, 31 (46)

[9] Visible Light-Induced Transition Metal Catalysis [J].

Cheung, Kelvin Pak Shing ;

Sarkar, Sumon ;

Gevorgyan, Vladimir .

CHEMICAL REVIEWS, 2022, 122 (02) :1543-1625

[10] Direct Z-Scheme Xylan-Based Carbon Dots@TiO2-x Nanocomposites for Visible Light Driven Photocatalytic of Dye Degradation and Antibacterial [J].

Cong, Shurui ;

Cai, Jihai ;

Li, Xiaoyun ;

You, Junqin ;

Wang, Lei ;

Wang, Xiaoying .

ADVANCED FUNCTIONAL MATERIALS, 2024, 34 (32)

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