Construction of an interface interaction in a g-C3N4/CdS/NiS for photoreforming of plastic and clean hydrogen regeneration.

Converting plastics into organic matter by photoreforming is an emerging way to deal with plastic pollution and produce valuable organic matter. Water shortage can be alleviated by using seawater resources. To solve these problems, we synthesize a ternary heterostructure composite g-C3N4/CdS/NiS. Heterojunctions are formed between graphitized carbon nitride (g-C3N4), cadmium sulfide (CdS) and nickel sulfide (NiS), which effectively improve the problem of fast charge recombination of pure g-C3N4 and CdS. The results of the g-C3N4/CdS/NiS photocatalytic tests show that the hydrogen production rates in seawater and pure water for 5 h are 30.44 and 25.79 mmol/g/h, respectively. In stability test, the hydrogen production rate of the g-C3N4/CdS/NiS in seawater and pure water is similar. This suggests that seawater can replace pure water as a source of hydrogen. While H2 is generated, the lactate obtained by polylactic acid (PLA) hydrolysis is oxidized to form small organic compounds such as formate, acetate and pyruvate. Our study shows that g-C3N4/CdS/NiS can not only use seawater as a hydrogen source to produce H2, but also photoreformate plastics dissolved in seawater into valuable small organic molecules. This has a positive impact on the production and use of clean energy, as well as on plastic pollution and water scarcity.

Legacy of culture heritage building revitalization: place attachment and culture identity.

Introduction: Cultural heritage buildings are revitalized to promote culture instead of being neglected or demolished. For locals, the revitalization of heritage buildings symbolizes a commitment to the community and a taste of collective memory. The study attempts to test the effectiveness of heritage cultural building on visitors' post-experience behavior through cultural identity and place attachment. "Cultural activities engagement" and "knowledge transfer" serves as moderating attributes. Their moderating the effects on cultural identity and place attachment are examined, respectively. Method: A valid sample size of 348 from four heritage buildings located in Hong Kong: Tai Kwun, Police Married Quarters (PMQ), Mei Ho House and The Mills. A data analysis platform for PLSSEM is chosen for this study. Results: Results demonstrate that the effectiveness of heritage building revitalization on visitors' local cultural identity and emotions leading to place attachment. Discussion: In our study, the effectiveness of heritage building encompasses three elements which includes appearance and components; technology and planning as well as contribution. Knowledge transfer positively moderates the effectiveness of heritage building revitalization and cultural identity. However, cultural activity engagement negatively moderates place attachment. Findings also exhibit that place attachment in heritage building revitalization leads to a positive experience extension. For the practical contribution, the study provides insights to policy makers and planners for historic building design such as appearance and components, technology in facilitating local visitors' local identity.