The green supply chain idea has now been implemented and incorporated into production and operations management. Managers and practitioners are interested in green legislation and concepts while selecting suppliers and organizations. A green supplier, green innovation, environmental performance practices in Vietnam’s manufacturing industry are all examined in this study. This is a descriptive research using correlation and structural equation modeling. Management and specialists from many Vietnamese provinces were chosen as study subjects. Study instruments included a questionnaire and Smart-PLS. The results of data analysis demonstrate a positive and significant association between a green supplier, green innovations, and environmental performance of an organization, as well as a negative yet significant relationship. Green innovation and environmental performance have a strong positive association, as does environmental performance and competitive advantage.

The recovery of metals from discarded mobile phones has been of interest due to its environmental and economic benefits. This work presents a simple and effective approach for leaching copper (Cu) from the printed circuit boards of discarded mobile phones by combining ultrasound and ozone approaches. The X-ray diffraction (XRD) technique and Fourier-transform infrared spectroscopy (FT-IR) were used to characterize the solid phases, and inductively coupled plasma optical emission spectrometry (ICP-OES) was utilized to determine the concentration of metals in the liquid phases. The effects of several influential parameters, including ultrasound, ozone dose, HCl concentration, liquid/solid ratio, temperature, and reaction time on the leaching efficiency were investigated. The results showed that the optimal conditions for Cu leaching included an ozone dose of 700 mg/h, HCl concentration of 3.0 M, liquid/solid ratio of 8, and temperature of 333 K. Under optimal conditions, about 99% of Cu was leached after 180 min. The shrinking core model was used to analyze the kinetics of the Cu leaching process, and the results showed that the surface chemical reaction governs this process. The activation energy of the leaching reaction, calculated using Two-Point form of the Arrhenius equation, was 10.852 kJ mol−1.

As a result of the rapid growth of smartphones, numerous research studies have been conducted in the marketing field. Nonetheless, there has been limited research examining the impact of smartphones on consumer logistical behaviors. The purpose of this research, which is based on consumer logistics, is to acquire a better understanding of the impact of smartphone usage by adopting a case study of supermarket purchasers while they shop for food. Fiction has emerged as the preferred optimization method for forecasting future smartphone use, which illustrates two potential supermarket universes. Such smartphone usage is still minimal. They will enable us to identify managerial drivers and then provide insight on the specific values associated with the rise of consumer logistical practices.

This paper contributes to the issue by integrating reverse logistics, closed-loop logistics, green logistics, and environmental logistics into a review and presenting a generic conceptual model for comprehending the process of environmental practice implementation in logistics. Scopus and Web of Science databases were used to compile the 2003-2018 data. The metadata analysis gives descriptive information on influential journals, subject areas, and the most frequently used words in titles, among other things. The content analysis demonstrates the evolution of our broad categories of the existing literature, creation of concepts and theories, identification of drivers, and evaluation optimization models.