Unraveling the relationship between entrepreneurial networks and entrepreneurial ambidexterity: A mediation-moderation model.

Entrepreneurial networks play an important role in identifying and exploiting entrepreneurial opportunities and the growth of entrepreneurial ambidexterity. This exploratory research aimed to explore the role of entrepreneurial networks on entrepreneurial ambidexterity with the mediating effect of novelty ecosystem and the moderating role of entrepreneurial intensity. The data is collected from 347 SME owners and managers of manufacturing and service industries in Jiangsu province, China. The hypotheses are analyzed using the partial least squares structural equation modeling PLS-SEM method. The results indicate that entrepreneurial networks are significantly associated with entrepreneurial ambidexterity. Moreover, findings show that the novelty ecosystem positively influences the association between entrepreneurial networks and entrepreneurial ambidexterity. Furthermore, results show that entrepreneurial intensity significantly moderated the relationship between novelty ecosystem and entrepreneurial ambidexterity. Lastly, the discussion and implications are elaborated in this study.

One-pot hydrothermal synthesis of a carbon quantum dot/CaFe2O4 hybrid nanocomposite for carcinogenic Congo red dye degradation.

Semiconductor materials show a restricted degradation response to organic pollutants due to limited photocatalytic activity under visible light. Therefore, researchers have devoted much attention to novel and effective nanocomposite materials. For the first time, herein, a novel nano-sized semiconductor calcium ferrite modified by carbon quantum dots (CaFe2O4/CQDs) photocatalyst is fabricated via simple hydrothermal treatment for the degradation of aromatic dye using a visible light source. The crystalline nature, structure, morphology, and optical parameters of each of the synthesized materials were investigated using X-ray diffraction spectroscopy (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and UV-visible spectroscopy. The nanocomposite exhibits excellent photocatalytic performance (90% degradation) against Congo red (CR) dye. In addition, a mechanism for CaFe2O4/CQDs improving photocatalytic performance has been proposed. The CQDs in the CaFe2O4/CQD nanocomposite are considered to act as an electron pool and transporter, as well as a strong energy transfer material, during photocatalysis. CaFe2O4/CQDs appear to be a promising and cost-effective nanocomposite for dye-contaminated water purification, according to the findings of this study.