期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 7, 期 19, 页码 16835-16842出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.9b04395
关键词
CdS; biomass carbon; CO2 reduction; antibiotics degradation; photocatalysts
资金
- NSFC [21520102001, 21571177, 51572260]
- Strategic Priority Research Program of Chinese Academy of Sciences [XDB20000000]
- Key Research Program of Frontier Sciences, CAS [QYZDJ-SSW-SLH045]
- State Key Laboratory of Structural Chemistry [20170032]
- Fujian Agriculture and Forestry University Program for Distinguished Young Scholar [xjq201813]
- International Science and Technology Cooperation and Exchange Project of Fujian Agriculture [KXGH17010]
- New Century Excellent Talents in Fujian Province University
- International Science and Technology Cooperation and Exchange Project of Forestry University [KXGH17010]
Low cost biomass porous carbons (BPCs) were herein demonstrated as both reducing agents and material supports in the synthesis of robust CdS@BPC photocatalysts through a simple one-step, solvent-free, and atom economic carbothermal reaction pathway. Owing to the versatile functionality on surfaces of BPCs, the as-prepared CdS@BPCs exhibited excellent interface reaction activity and stability as photocatalysts for carbon dioxide (CO2) photoreduction and oxidative tetracycline (TC) degradation under visible irradiation. The considerably large surface area of BPCs (765-1005 m(2) g(-1)) accounted for high CO2 adsorption affinity and TC adsorption, and thus the accessibility of guest molecules (CO2 and TC) to active interfaces of the photocatalysts was favorably promoted. In addition, a mechanism study indicated that BPCs, functioning as electron reservoirs, greatly enhanced the separation efficiency of photogenerated carriers and the transportation of electrons due to improved conductivity, because of which BPCs could be superior to other conventional carbonaceous supports such as granular activated carbons, carbon nanotubes, and graphene oxides. This work thus provides an alternative pathway to fabricate robust photocatalysts from environmentally friendly and sustainable biomass carbon precursors.
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