Eco-friendly rice husk derived biochar as a highly efficient noble Metal-Free cocatalyst for high production of H2 using solar light irradiation

被引：33

作者：

Bhavani, Palagiri ^{[1
]}

Kumar, D. Praveen ^{[2
]}

Hussain, Murid ^{[3
]}

Aminabhavi, Tejraj M. ^{[4
,5
]}

Park, Young-Kwon ^{[1
]}

机构：

[1] Univ Seoul, Sch Environm Engn, Seoul 02504, South Korea

[2] Yonsei Univ, Dept Chem, 50 Yonsei Ro, Seoul 03722, South Korea

[3] COMSATS Univ Islamabad, Dept Chem Engn, Lahore Campus,Def Rd,Off Raiwind Rd, Lahore 54000, Pakistan

[4] KLE Technol Univ, Sch Adv Sci, Hubballi 580031, Karnataka, India

[5] Karnatak Univ, Dept Chem, Dharwad 580003, Karnataka, India

来源：

CHEMICAL ENGINEERING JOURNAL | 2022年 / 434卷

基金：

新加坡国家研究基金会;

关键词：

Biochar; ZnIn2S4; Nanosheets; Photocatalysis; PHOTOCATALYTIC HYDROGEN-PRODUCTION; VISIBLE-LIGHT; ENERGY-STORAGE; CDS; DEGRADATION; COMPOSITE; EVOLUTION; WATER; HETEROSTRUCTURES; NANOPARTICLES;

D O I：

10.1016/j.cej.2022.134743

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Eco-friendly, low-cost, and highly efficient noble metal-free rice husk (RH) biomass-derived biochar (BC) was developed as an efficient cocatalyst to improve the performance of zinc indium sulfide (ZnIn2S4) for the photocatalytic H-2 production. The ZnIn2S4 and BC were synthesized using simple hydrothermal and pyrolysis methods, respectively. The ZnIn2S4 was converted into few-layered ZnIn2S4 nanosheets (ZIS) after the incorporation on BC using ultra-sonication process. The optimized nanocomposite exhibited superior H2 production (4,466 mu mol h(-1) g(-1)) compared to pristine ZIS under the simulated light irradiation. The stability of catalyst was confirmed by long-term (30 h) photo-experiment and recycling studies. Enhanced activity was the result of efficient interfacial contacts between the materials in addition to high surface area, high conductivity with carbon content, porous structure of BC, and ultrathin-layered structure of ZIS nanosheets. The effective photo induced charge carrier separation, improved long-life shuttling, and subsequent acceleration has led to enhanced visible light absorption for enhanced H2 production.

引用

页数：11

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