首页|Self-templating synthesis of biomass-based porous carbon nanotubes for energy storage and catalytic degradation applications

Self-templating synthesis of biomass-based porous carbon nanotubes for energy storage and catalytic degradation applications

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Dwindling energy sources and a worsening environment are huge global problems,and biomass wastes are an under-exploited source of material for both energy and material generation.Herein,self-template decoction dregs of Ganoderma lucidum-derived porous carbon nanotubes(ST-DDLGCs)were synthesized via a facile and scalable strategy in response to these challenges.ST-DDLGCs exhibited a large surface area(1731.51 m2 g-1)and high pore volume(0.76 cm3 g-1),due to the interlacing tubular structures of precursors and extra-hierarchical porous structures on tube walls.In the ST-DDLGC/PMS system,the degradation efficiency of capecitabine(CAP)reached～97.3％within 120 min.Moreover,ST-DDLGCs displayed high catalytic activity over a wide pH range of 3-9,and strong anti-interference to these typical and ubiq-uitous anions in wastewater and natural water bodies(i.e.,H2PO4-,NO3-,Cl-and HCO3-),in which a 1O2-dominated oxidation was identified and non-radical mechanisms were deduced.Additionally,ST-DDLGC-based coin-type symmetrical supercapacitors exhibited outstanding electrochemical performance,with specific capacitances of up to 328.1 F g-1 at 0.5 A g-1,and cycling stability of up to 98.6％after 10,000 cycles at a current density of 2 A g-1.The superior properties of ST-DDLGCs could be attributed to the unique porous tubular structure,which facilitated mass transfer and presented numerous active sites.The results highlight ST-DDLGCs as a potential candidate for constructing inexpensive and advanced environmentally functional materials and energy storage devices.

Ganoderma lucidum residuePorous carbon nanotubesSelf-template methodWastewater treatmentSupercapacitor electrode

Manman Xu、Shiqi Fu、Yukai Wen、Wei Li、Qiongfang Zhuo、Haida Zhu、Zhikeng Zheng、Yuwen Chen、Anqi Wang、Kai Yan

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Research Centre for Eco-Environmental Engineering,School of Environment and Civil Engineering,Dongguan University of Technology,Dongguan,523808,China

School of Environmental Science and Engineering,Sun Yat-sen University,Guangzhou,510275,China

国家自然科学基金国家自然科学基金国家自然科学基金Key Realm Research and Development Program of Guangdong Province广东省科技计划Guangdong Laboratory for Lingnan Modern Agriculture ProjectScientific and Technological Planning Project of Guangzhou

2190802422078374521001732020B02020800012021B1212040008NT2021010202206010145

2024

10.1016/j.gee.2023.10.005

绿色能源与环境(英文)

绿色能源与环境(英文)

CSTPCD
ISSN：
年,卷(期)：2024.9(3)
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