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Jingang Li,Yingcheng Li,Manya Tu,Xingjian Liu 서울시립대학교 도시과학연구원 2024 도시과학국제저널 Vol.28 No.1
While third places have often been conceived as key drivers for technological innovation, further empirical modelling is necessary to verify such relationship. Drawing upon a database on geocoded patents and third places in Nanjing, China, this paper investigates their relationship at a grid cell level. The results suggest that both quantity and diversity of third places could be associated with the process of technological innovation. Furthermore, the study finds an inverted U-curve relationship between the quantity of third places and technological innovation, indicating that too many third places may not be linked with higher technological innovation capacity. It also suggests that the number of business incubators may weaken the relationship between third places and technological innovation.
Qiang Yang,Xiang Li,Qingwen Tian,Aixiang Pan,Xingjian Liu,Hang Yin,Yingqiao Shi,Guigan Fang 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.117 No.-
Effective utilization solar energy through photocatalysis is an ideal way to solve environmental problemsand achieve sustainable development. Herein, a novel BiOBr/Lignin-Biochar photocatalyst has been successfullysynthesized by a simple hydrothermal method. The number of oxygen vacancies of BiOBrincreased after C doping, which improves visible-light absorbance, reduces the recombination ofphoto-generated carriers and promotes O2 activation to produce O2. UV–vis DRS result demonstratedthat the visible-light absorption capacity of BiOBr improved significantly with the addition of lignin. Compared with BiOBr, the adsorption and photocatalytic ability of BiOBr/Lignin-Biochar composites weregreatly enhanced due to enriched oxygen vacancies and the congenerous effect between BiOBr andlignin-biochar. The RhB removal with pure BiOBr and BiOBr/Lignin-Biochar under visible-light irradiationat 60 min was 54.5% and 99.2%, respectively, owing to the interface interaction between BiOBr and ligninbiocharpromoted the separation between electron and holes and the enrichment of RhB around the photocatalysts. Notably, the bandgap of BiOBr/Lignin-Biochar composites decreased from 2.65 eV to 2.56 eVafter C doping, useful for visible-light-driven photocatalysis. The superoxide radical anions (O2) were themain active species, as demonstrated by free radical capture experiments and ESR characterizationresults. Hence, the present work provides new insights into constructing cost-effective, high-efficiencycomposite materials for environmental remediation.